1 #ifdef __LINUX
2 #include <linux/kernel.h>
3 #include <linux/types.h>
4 #include <asm/byteorder.h>
5 #endif
6 #ifdef USER_LINUX
7 #include <stdio.h>
8 #include <unistd.h>
9 #include <sys/types.h>
10 #include <sys/socket.h>
11 #include <netinet/in.h>
12 #include <arpa/inet.h>
13 #include <sys/ioctl.h>
14 #include <net/if.h>
15 #include <linux/sockios.h>
16 #include <string.h>
17 #include <malloc.h>
18 #endif
19 #ifdef __FreeBSD__
20 #include <sys/types.h>
21 #endif
22 #include "bcmtype.h"
23 #ifdef EDEBUG
24 #include "edebug_types.h"
25 #endif
26 #include "clc.h"
27 #include "grc_addr.h"
28 #include "bigmac_addresses.h"
29 #include "emac_reg_driver.h"
30 #include "misc_bits.h"
31 #include "57712_reg.h"
32 #include "clc_reg.h"
33 #include "dev_info.h"
34 #include "license.h"
35 #include "shmem.h"
36 #include "aeu_inputs.h"
37 
38 typedef elink_status_t (*read_sfp_module_eeprom_func_p)(struct elink_phy *phy,
39 					     struct elink_params *params,
40 					     u8 dev_addr, u16 addr, u8 byte_cnt,
41 					     u8 *o_buf, u8);
42 /********************************************************/
43 #define ELINK_ETH_HLEN			14
44 /* L2 header size + 2*VLANs (8 bytes) + LLC SNAP (8 bytes) */
45 #define ELINK_ETH_OVREHEAD			(ELINK_ETH_HLEN + 8 + 8)
46 #define ELINK_ETH_MIN_PACKET_SIZE		60
47 #define ELINK_ETH_MAX_PACKET_SIZE		1500
48 #define ELINK_ETH_MAX_JUMBO_PACKET_SIZE	9600
49 #define ELINK_MDIO_ACCESS_TIMEOUT		1000
50 #define WC_LANE_MAX			4
51 #define I2C_SWITCH_WIDTH		2
52 #define I2C_BSC0			0
53 #define I2C_BSC1			1
54 #define I2C_WA_RETRY_CNT		3
55 #define I2C_WA_PWR_ITER			(I2C_WA_RETRY_CNT - 1)
56 #define MCPR_IMC_COMMAND_READ_OP	1
57 #define MCPR_IMC_COMMAND_WRITE_OP	2
58 
59 /* LED Blink rate that will achieve ~15.9Hz */
60 #define LED_BLINK_RATE_VAL_E3		354
61 #define LED_BLINK_RATE_VAL_E1X_E2	480
62 /***********************************************************/
63 /*			  Macros			   */
64 /***********************************************************/
65 #define MSLEEP(cb, ms)			elink_cb_udelay(cb, 1000*ms)
66 #define USLEEP(cb, us)			elink_cb_udelay(cb, us)
67 #define REG_RD(cb, reg)			elink_cb_reg_read(cb, reg)
68 #define REG_WR(cb, reg, val)		elink_cb_reg_write(cb, reg, val)
69 #define EMAC_RD(cb, reg)		REG_RD(cb, emac_base + reg)
70 #define EMAC_WR(cb, reg, val)		REG_WR(cb, emac_base + reg, val)
71 #define REG_WR_DMAE(cb, offset, wb_data, len) \
72 	elink_cb_reg_wb_write(cb, offset, wb_data, len)
73 #define REG_RD_DMAE(cb, offset, wb_data, len) \
74 	elink_cb_reg_wb_read(cb, offset, wb_data, len)
75 #define PATH_ID(cb) elink_cb_path_id(cb)
76 
77 #define ELINK_SET_GPIO			elink_cb_gpio_write
78 #define ELINK_SET_MULT_GPIO		elink_cb_gpio_mult_write
79 #define ELINK_GET_GPIO			elink_cb_gpio_read
80 #define ELINK_SET_GPIO_INT		elink_cb_gpio_int_write
81 
82 #ifndef OFFSETOF
83 #define OFFSETOF(_s, _m)	((u32) ((u8 *)(&((_s *) 0)->_m) - \
84 					(u8 *)((u8 *) 0)))
85 #endif
86 
87 #define CHIP_REV_SHIFT              12
88 #define CHIP_REV_MASK               (0xF<<CHIP_REV_SHIFT)
89 #define CHIP_REV(_chip_id)          ((_chip_id) & CHIP_REV_MASK)
90 
91 #define CHIP_REV_Ax                 (0x0<<CHIP_REV_SHIFT)
92 #define CHIP_REV_Bx                 (0x1<<CHIP_REV_SHIFT)
93 #define CHIP_REV_IS_SLOW(_chip_id) \
94 		(CHIP_REV(_chip_id) > 0x00005000)
95 #define CHIP_REV_IS_FPGA(_chip_id) \
96 		(CHIP_REV_IS_SLOW(_chip_id)&& \
97 		(CHIP_REV(_chip_id) & 0x00001000))
98 #define CHIP_REV_IS_EMUL(_chip_id) \
99 		(CHIP_REV_IS_SLOW(_chip_id)&& \
100 		!(CHIP_REV(_chip_id) & 0x00001000))
101 
102 #define CHIP_NUM(_chip_id)	(_chip_id >> 16)
103 #define CHIP_NUM_57710		0x164e
104 #define CHIP_NUM_57711		0x164f
105 #define CHIP_NUM_57711E		0x1650
106 #define CHIP_NUM_57712		0x1662
107 #define CHIP_NUM_57712E		0x1663
108 #define CHIP_NUM_57713		0x1651
109 #define CHIP_NUM_57713E		0x1652
110 #define CHIP_NUM_57840_OBSOLETE 0x168d
111 #define CHIP_NUM_57840_4_10	0x16a1
112 #define CHIP_NUM_57840_2_20	0x16a2
113 #define CHIP_NUM_57810		0x168e
114 #define CHIP_NUM_57800		0x168a
115 #define CHIP_NUM_57811		0x163d
116 #define CHIP_NUM_57811_MF   0x163e
117 #define CHIP_IS_E1(_chip_id)	(CHIP_NUM(_chip_id) == \
118 	CHIP_NUM_57710)
119 #define CHIP_IS_E1X(_chip_id)	((CHIP_NUM(_chip_id) == \
120 				  CHIP_NUM_57710) || \
121 				 (CHIP_NUM(_chip_id) == \
122 				  CHIP_NUM_57711) || \
123 				 (CHIP_NUM(_chip_id) == \
124 				  CHIP_NUM_57711E))
125 
126 #define CHIP_IS_E2(_chip_id)	((CHIP_NUM(_chip_id) == \
127 					  CHIP_NUM_57712) || \
128 					 (CHIP_NUM(_chip_id) == \
129 					  CHIP_NUM_57712E) || \
130 					 (CHIP_NUM(_chip_id) == \
131 					  CHIP_NUM_57713) || \
132 					 (CHIP_NUM(_chip_id) == \
133 					  CHIP_NUM_57713E))
134 
135 #define CHIP_IS_57711(_chip_id)	(CHIP_NUM(_chip_id) == \
136 					 CHIP_NUM_57711)
137 #define CHIP_IS_57711E(_chip_id)	(CHIP_NUM(_chip_id) == \
138 					 CHIP_NUM_57711E)
139 #define DO_CHIP_IS_E3(_chip_family)	((_chip_family == 0x1630) || \
140 					 (_chip_family == 0x1680) || \
141 					 (_chip_family == 0x16a0))
142 #define CHIP_IS_E3(_chip_id)	(DO_CHIP_IS_E3(((CHIP_NUM(_chip_id)) & 0xfff0)))
143 
144 
145 /* For EMUL: Ax=0xE, Bx=0xC, Cx=0xA. For FPGA: Ax=0xF, Bx=0xD,
146  * Cx=0xB.
147  */
148 #define CHIP_REV_SIM(_p)            (((0xF - (CHIP_REV(_p) >> CHIP_REV_SHIFT)) \
149 				      >>1) << CHIP_REV_SHIFT)
150 
151 #define CHIP_IS_E3B0(_p)            (CHIP_IS_E3(_p) && \
152 				     ((CHIP_REV(_p) == CHIP_REV_Bx) || \
153 				      (CHIP_REV_SIM(_p) == CHIP_REV_Bx)))
154 
155 #define CHIP_IS_E3A0(_p)            (CHIP_IS_E3(_p) && \
156 				     ((CHIP_REV(_p) == CHIP_REV_Ax) || \
157 				      (CHIP_REV_SIM(_p) == CHIP_REV_Ax)))
158 
159 #define ELINK_USES_WARPCORE(_chip_id)   (CHIP_IS_E3(_chip_id))
160 
161 #define SHMEM2_RD(cb, shmem2_base, _field) \
162 				      REG_RD(cb, shmem2_base + \
163 					      OFFSETOF(struct shmem2_region, \
164 						      _field))
165 
166 #define SHMEM2_HAS(cb, shmem2_base, field) (shmem2_base && \
167 					 (SHMEM2_RD(cb, shmem2_base, size) > \
168 					 OFFSETOF(struct shmem2_region, field)))
169 #ifndef NULL
170 #define NULL    ((void *) 0)
171 #endif
172 
173 /***********************************************************/
174 /*			Shortcut definitions		   */
175 /***********************************************************/
176 
177 #define ELINK_NIG_LATCH_BC_ENABLE_MI_INT 0
178 
179 #define ELINK_NIG_STATUS_EMAC0_MI_INT \
180 		NIG_STATUS_INTERRUPT_PORT0_REG_STATUS_EMAC0_MISC_MI_INT
181 #define ELINK_NIG_STATUS_XGXS0_LINK10G \
182 		NIG_STATUS_INTERRUPT_PORT0_REG_STATUS_XGXS0_LINK10G
183 #define ELINK_NIG_STATUS_XGXS0_LINK_STATUS \
184 		NIG_STATUS_INTERRUPT_PORT0_REG_STATUS_XGXS0_LINK_STATUS
185 #define ELINK_NIG_STATUS_XGXS0_LINK_STATUS_SIZE \
186 		NIG_STATUS_INTERRUPT_PORT0_REG_STATUS_XGXS0_LINK_STATUS_SIZE
187 #define ELINK_NIG_STATUS_SERDES0_LINK_STATUS \
188 		NIG_STATUS_INTERRUPT_PORT0_REG_STATUS_SERDES0_LINK_STATUS
189 #define ELINK_NIG_MASK_MI_INT \
190 		NIG_MASK_INTERRUPT_PORT0_REG_MASK_EMAC0_MISC_MI_INT
191 #define ELINK_NIG_MASK_XGXS0_LINK10G \
192 		NIG_MASK_INTERRUPT_PORT0_REG_MASK_XGXS0_LINK10G
193 #define ELINK_NIG_MASK_XGXS0_LINK_STATUS \
194 		NIG_MASK_INTERRUPT_PORT0_REG_MASK_XGXS0_LINK_STATUS
195 #define ELINK_NIG_MASK_SERDES0_LINK_STATUS \
196 		NIG_MASK_INTERRUPT_PORT0_REG_MASK_SERDES0_LINK_STATUS
197 
198 #define ELINK_MDIO_AN_CL73_OR_37_COMPLETE \
199 		(MDIO_GP_STATUS_TOP_AN_STATUS1_CL73_AUTONEG_COMPLETE | \
200 		 MDIO_GP_STATUS_TOP_AN_STATUS1_CL37_AUTONEG_COMPLETE)
201 
202 #define ELINK_XGXS_RESET_BITS \
203 	(MISC_REGISTERS_RESET_REG_3_MISC_NIG_MUX_XGXS0_RSTB_HW |   \
204 	 MISC_REGISTERS_RESET_REG_3_MISC_NIG_MUX_XGXS0_IDDQ |      \
205 	 MISC_REGISTERS_RESET_REG_3_MISC_NIG_MUX_XGXS0_PWRDWN |    \
206 	 MISC_REGISTERS_RESET_REG_3_MISC_NIG_MUX_XGXS0_PWRDWN_SD | \
207 	 MISC_REGISTERS_RESET_REG_3_MISC_NIG_MUX_XGXS0_TXD_FIFO_RSTB)
208 
209 #define ELINK_SERDES_RESET_BITS \
210 	(MISC_REGISTERS_RESET_REG_3_MISC_NIG_MUX_SERDES0_RSTB_HW | \
211 	 MISC_REGISTERS_RESET_REG_3_MISC_NIG_MUX_SERDES0_IDDQ |    \
212 	 MISC_REGISTERS_RESET_REG_3_MISC_NIG_MUX_SERDES0_PWRDWN |  \
213 	 MISC_REGISTERS_RESET_REG_3_MISC_NIG_MUX_SERDES0_PWRDWN_SD)
214 
215 #define ELINK_AUTONEG_CL37		SHARED_HW_CFG_AN_ENABLE_CL37
216 #define ELINK_AUTONEG_CL73		SHARED_HW_CFG_AN_ENABLE_CL73
217 #define ELINK_AUTONEG_BAM		SHARED_HW_CFG_AN_ENABLE_BAM
218 #define ELINK_AUTONEG_PARALLEL \
219 				SHARED_HW_CFG_AN_ENABLE_PARALLEL_DETECTION
220 #define ELINK_AUTONEG_SGMII_FIBER_AUTODET \
221 				SHARED_HW_CFG_AN_EN_SGMII_FIBER_AUTO_DETECT
222 #define ELINK_AUTONEG_REMOTE_PHY	SHARED_HW_CFG_AN_ENABLE_REMOTE_PHY
223 
224 #define ELINK_GP_STATUS_PAUSE_RSOLUTION_TXSIDE \
225 			MDIO_GP_STATUS_TOP_AN_STATUS1_PAUSE_RSOLUTION_TXSIDE
226 #define ELINK_GP_STATUS_PAUSE_RSOLUTION_RXSIDE \
227 			MDIO_GP_STATUS_TOP_AN_STATUS1_PAUSE_RSOLUTION_RXSIDE
228 #define ELINK_GP_STATUS_SPEED_MASK \
229 			MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_MASK
230 #define ELINK_GP_STATUS_10M	MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_10M
231 #define ELINK_GP_STATUS_100M	MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_100M
232 #define ELINK_GP_STATUS_1G	MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_1G
233 #define ELINK_GP_STATUS_2_5G	MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_2_5G
234 #define ELINK_GP_STATUS_5G	MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_5G
235 #define ELINK_GP_STATUS_6G	MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_6G
236 #define ELINK_GP_STATUS_10G_HIG \
237 			MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_10G_HIG
238 #define ELINK_GP_STATUS_10G_CX4 \
239 			MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_10G_CX4
240 #define ELINK_GP_STATUS_1G_KX MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_1G_KX
241 #define ELINK_GP_STATUS_10G_KX4 \
242 			MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_10G_KX4
243 #define	ELINK_GP_STATUS_10G_KR MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_10G_KR
244 #define	ELINK_GP_STATUS_10G_XFI   MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_10G_XFI
245 #define	ELINK_GP_STATUS_20G_DXGXS MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_20G_DXGXS
246 #define	ELINK_GP_STATUS_10G_SFI   MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_10G_SFI
247 #define	ELINK_GP_STATUS_20G_KR2 MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_20G_KR2
248 #define ELINK_LINK_10THD		LINK_STATUS_SPEED_AND_DUPLEX_10THD
249 #define ELINK_LINK_10TFD		LINK_STATUS_SPEED_AND_DUPLEX_10TFD
250 #define ELINK_LINK_100TXHD		LINK_STATUS_SPEED_AND_DUPLEX_100TXHD
251 #define ELINK_LINK_100T4		LINK_STATUS_SPEED_AND_DUPLEX_100T4
252 #define ELINK_LINK_100TXFD		LINK_STATUS_SPEED_AND_DUPLEX_100TXFD
253 #define ELINK_LINK_1000THD		LINK_STATUS_SPEED_AND_DUPLEX_1000THD
254 #define ELINK_LINK_1000TFD		LINK_STATUS_SPEED_AND_DUPLEX_1000TFD
255 #define ELINK_LINK_1000XFD		LINK_STATUS_SPEED_AND_DUPLEX_1000XFD
256 #define ELINK_LINK_2500THD		LINK_STATUS_SPEED_AND_DUPLEX_2500THD
257 #define ELINK_LINK_2500TFD		LINK_STATUS_SPEED_AND_DUPLEX_2500TFD
258 #define ELINK_LINK_2500XFD		LINK_STATUS_SPEED_AND_DUPLEX_2500XFD
259 #define ELINK_LINK_10GTFD		LINK_STATUS_SPEED_AND_DUPLEX_10GTFD
260 #define ELINK_LINK_10GXFD		LINK_STATUS_SPEED_AND_DUPLEX_10GXFD
261 #define ELINK_LINK_20GTFD		LINK_STATUS_SPEED_AND_DUPLEX_20GTFD
262 #define ELINK_LINK_20GXFD		LINK_STATUS_SPEED_AND_DUPLEX_20GXFD
263 
264 #define ELINK_LINK_UPDATE_MASK \
265 			(LINK_STATUS_SPEED_AND_DUPLEX_MASK | \
266 			 LINK_STATUS_LINK_UP | \
267 			 LINK_STATUS_PHYSICAL_LINK_FLAG | \
268 			 LINK_STATUS_AUTO_NEGOTIATE_COMPLETE | \
269 			 LINK_STATUS_RX_FLOW_CONTROL_FLAG_MASK | \
270 			 LINK_STATUS_TX_FLOW_CONTROL_FLAG_MASK | \
271 			 LINK_STATUS_PARALLEL_DETECTION_FLAG_MASK | \
272 			 LINK_STATUS_LINK_PARTNER_SYMMETRIC_PAUSE | \
273 			 LINK_STATUS_LINK_PARTNER_ASYMMETRIC_PAUSE)
274 
275 #define ELINK_SFP_EEPROM_CON_TYPE_ADDR		0x2
276 	#define ELINK_SFP_EEPROM_CON_TYPE_VAL_UNKNOWN	0x0
277 	#define ELINK_SFP_EEPROM_CON_TYPE_VAL_LC	0x7
278 	#define ELINK_SFP_EEPROM_CON_TYPE_VAL_COPPER	0x21
279 	#define ELINK_SFP_EEPROM_CON_TYPE_VAL_RJ45	0x22
280 
281 
282 #define ELINK_SFP_EEPROM_10G_COMP_CODE_ADDR		0x3
283 	#define ELINK_SFP_EEPROM_10G_COMP_CODE_SR_MASK	(1<<4)
284 	#define ELINK_SFP_EEPROM_10G_COMP_CODE_LR_MASK	(1<<5)
285 	#define ELINK_SFP_EEPROM_10G_COMP_CODE_LRM_MASK	(1<<6)
286 	#define ELINK_SFP_EEPROM_10G_COMP_CODE_ER_MASK	(1<<7)
287 
288 #define ELINK_SFP_EEPROM_1G_COMP_CODE_ADDR		0x6
289 	#define ELINK_SFP_EEPROM_1G_COMP_CODE_SX	(1<<0)
290 	#define ELINK_SFP_EEPROM_1G_COMP_CODE_LX	(1<<1)
291 	#define ELINK_SFP_EEPROM_1G_COMP_CODE_CX	(1<<2)
292 	#define ELINK_SFP_EEPROM_1G_COMP_CODE_BASE_T	(1<<3)
293 
294 #define ELINK_SFP_EEPROM_FC_TX_TECH_ADDR		0x8
295 	#define ELINK_SFP_EEPROM_FC_TX_TECH_BITMASK_COPPER_PASSIVE 0x4
296 	#define ELINK_SFP_EEPROM_FC_TX_TECH_BITMASK_COPPER_ACTIVE  0x8
297 
298 #define ELINK_SFP_EEPROM_OPTIONS_ADDR			0x40
299 	#define ELINK_SFP_EEPROM_OPTIONS_LINEAR_RX_OUT_MASK 0x1
300 #define ELINK_SFP_EEPROM_OPTIONS_SIZE			2
301 
302 #define ELINK_EDC_MODE_LINEAR				0x0022
303 #define ELINK_EDC_MODE_LIMITING				0x0044
304 #define ELINK_EDC_MODE_PASSIVE_DAC			0x0055
305 #define ELINK_EDC_MODE_ACTIVE_DAC			0x0066
306 
307 /* ETS defines*/
308 #define DCBX_INVALID_COS					(0xFF)
309 
310 #define ELINK_ETS_BW_LIMIT_CREDIT_UPPER_BOUND		(0x5000)
311 #define ELINK_ETS_BW_LIMIT_CREDIT_WEIGHT		(0x5000)
312 #define ELINK_ETS_E3B0_NIG_MIN_W_VAL_UP_TO_10GBPS		(1360)
313 #define ELINK_ETS_E3B0_NIG_MIN_W_VAL_20GBPS			(2720)
314 #define ELINK_ETS_E3B0_PBF_MIN_W_VAL				(10000)
315 
316 #define ELINK_MAX_PACKET_SIZE					(9700)
317 #ifdef INCLUDE_WARPCORE_UC_LOAD
318 #define ELINK_WC_UC_TIMEOUT					1000
319 #define ELINK_WC_RDY_TIMEOUT_MSEC           100
320 #endif
321 #define MAX_KR_LINK_RETRY				4
322 
323 /**********************************************************/
324 /*                     INTERFACE                          */
325 /**********************************************************/
326 
327 #define CL22_WR_OVER_CL45(_cb, _phy, _bank, _addr, _val) \
328 	elink_cl45_write(_cb, _phy, \
329 		(_phy)->def_md_devad, \
330 		(_bank + (_addr & 0xf)), \
331 		_val)
332 
333 #define CL22_RD_OVER_CL45(_cb, _phy, _bank, _addr, _val) \
334 	elink_cl45_read(_cb, _phy, \
335 		(_phy)->def_md_devad, \
336 		(_bank + (_addr & 0xf)), \
337 		_val)
338 
339 #ifdef BNX2X_ADD /* BNX2X_ADD */
340 static int elink_check_half_open_conn(struct elink_params *params,
341 				      struct elink_vars *vars, u8 notify);
342 static int elink_sfp_module_detection(struct elink_phy *phy,
343 				      struct elink_params *params);
344 #endif
345 
elink_bits_en(struct elink_dev * cb,u32 reg,u32 bits)346 static u32 elink_bits_en(struct elink_dev *cb, u32 reg, u32 bits)
347 {
348 	u32 val = REG_RD(cb, reg);
349 
350 	val |= bits;
351 	REG_WR(cb, reg, val);
352 	return val;
353 }
354 
elink_bits_dis(struct elink_dev * cb,u32 reg,u32 bits)355 static u32 elink_bits_dis(struct elink_dev *cb, u32 reg, u32 bits)
356 {
357 	u32 val = REG_RD(cb, reg);
358 
359 	val &= ~bits;
360 	REG_WR(cb, reg, val);
361 	return val;
362 }
363 
364 /*
365  * elink_check_lfa - This function checks if link reinitialization is required,
366  *                   or link flap can be avoided.
367  *
368  * @params:	link parameters
369  * Returns 0 if Link Flap Avoidance conditions are met otherwise, the failed
370  *         condition code.
371  */
372 #ifndef EXCLUDE_NON_COMMON_INIT
elink_check_lfa(struct elink_params * params)373 static int elink_check_lfa(struct elink_params *params)
374 {
375 	u32 link_status, cfg_idx, lfa_mask, cfg_size;
376 	u32 cur_speed_cap_mask, cur_req_fc_auto_adv, additional_config;
377 	u32 saved_val, req_val, eee_status;
378 	struct elink_dev *cb = params->cb;
379 
380 	additional_config =
381 		REG_RD(cb, params->lfa_base +
382 			   OFFSETOF(struct shmem_lfa, additional_config));
383 
384 	/* NOTE: must be first condition checked -
385 	* to verify DCC bit is cleared in any case!
386 	*/
387 	if (additional_config & NO_LFA_DUE_TO_DCC_MASK) {
388 		ELINK_DEBUG_P0(cb, "No LFA due to DCC flap after clp exit\n");
389 		REG_WR(cb, params->lfa_base +
390 			   OFFSETOF(struct shmem_lfa, additional_config),
391 		       additional_config & ~NO_LFA_DUE_TO_DCC_MASK);
392 		return LFA_DCC_LFA_DISABLED;
393 	}
394 
395 	/* Verify that link is up */
396 	link_status = REG_RD(cb, params->shmem_base +
397 			     OFFSETOF(struct shmem_region,
398 				      port_mb[params->port].link_status));
399 	if (!(link_status & LINK_STATUS_LINK_UP))
400 		return LFA_LINK_DOWN;
401 
402 	/* if loaded after BOOT from SAN, don't flap the link in any case and
403 	 * rely on link set by preboot driver
404 	 */
405 	if (params->feature_config_flags & ELINK_FEATURE_CONFIG_BOOT_FROM_SAN)
406 		return 0;
407 
408 	/* Verify that loopback mode is not set */
409 	if (params->loopback_mode)
410 		return LFA_LOOPBACK_ENABLED;
411 
412 	/* Verify that MFW supports LFA */
413 	if (!params->lfa_base)
414 		return LFA_MFW_IS_TOO_OLD;
415 
416 	if (params->num_phys == 3) {
417 		cfg_size = 2;
418 		lfa_mask = 0xffffffff;
419 	} else {
420 		cfg_size = 1;
421 		lfa_mask = 0xffff;
422 	}
423 
424 	/* Compare Duplex */
425 	saved_val = REG_RD(cb, params->lfa_base +
426 			   OFFSETOF(struct shmem_lfa, req_duplex));
427 	req_val = params->req_duplex[0] | (params->req_duplex[1] << 16);
428 	if ((saved_val & lfa_mask) != (req_val & lfa_mask)) {
429 		ELINK_DEBUG_P2(cb, "Duplex mismatch %x vs. %x\n",
430 			       (saved_val & lfa_mask), (req_val & lfa_mask));
431 		return LFA_DUPLEX_MISMATCH;
432 	}
433 	/* Compare Flow Control */
434 	saved_val = REG_RD(cb, params->lfa_base +
435 			   OFFSETOF(struct shmem_lfa, req_flow_ctrl));
436 	req_val = params->req_flow_ctrl[0] | (params->req_flow_ctrl[1] << 16);
437 	if ((saved_val & lfa_mask) != (req_val & lfa_mask)) {
438 		ELINK_DEBUG_P2(cb, "Flow control mismatch %x vs. %x\n",
439 			       (saved_val & lfa_mask), (req_val & lfa_mask));
440 		return LFA_FLOW_CTRL_MISMATCH;
441 	}
442 	/* Compare Link Speed */
443 	saved_val = REG_RD(cb, params->lfa_base +
444 			   OFFSETOF(struct shmem_lfa, req_line_speed));
445 	req_val = params->req_line_speed[0] | (params->req_line_speed[1] << 16);
446 	if ((saved_val & lfa_mask) != (req_val & lfa_mask)) {
447 		ELINK_DEBUG_P2(cb, "Link speed mismatch %x vs. %x\n",
448 			       (saved_val & lfa_mask), (req_val & lfa_mask));
449 		return LFA_LINK_SPEED_MISMATCH;
450 	}
451 
452 	for (cfg_idx = 0; cfg_idx < cfg_size; cfg_idx++) {
453 		cur_speed_cap_mask = REG_RD(cb, params->lfa_base +
454 					    OFFSETOF(struct shmem_lfa,
455 						     speed_cap_mask[cfg_idx]));
456 
457 		if (cur_speed_cap_mask != params->speed_cap_mask[cfg_idx]) {
458 			ELINK_DEBUG_P2(cb, "Speed Cap mismatch %x vs. %x\n",
459 				       cur_speed_cap_mask,
460 				       params->speed_cap_mask[cfg_idx]);
461 			return LFA_SPEED_CAP_MISMATCH;
462 		}
463 	}
464 
465 	cur_req_fc_auto_adv =
466 		REG_RD(cb, params->lfa_base +
467 		       OFFSETOF(struct shmem_lfa, additional_config)) &
468 		REQ_FC_AUTO_ADV_MASK;
469 
470 	if ((u16)cur_req_fc_auto_adv != params->req_fc_auto_adv) {
471 		ELINK_DEBUG_P2(cb, "Flow Ctrl AN mismatch %x vs. %x\n",
472 			       cur_req_fc_auto_adv, params->req_fc_auto_adv);
473 		return LFA_FLOW_CTRL_MISMATCH;
474 	}
475 
476 	eee_status = REG_RD(cb, params->shmem2_base +
477 			    OFFSETOF(struct shmem2_region,
478 				     eee_status[params->port]));
479 
480 	if (((eee_status & SHMEM_EEE_LPI_REQUESTED_BIT) ^
481 	     (params->eee_mode & ELINK_EEE_MODE_ENABLE_LPI)) ||
482 	    ((eee_status & SHMEM_EEE_REQUESTED_BIT) ^
483 	     (params->eee_mode & ELINK_EEE_MODE_ADV_LPI))) {
484 		ELINK_DEBUG_P2(cb, "EEE mismatch %x vs. %x\n", params->eee_mode,
485 			       eee_status);
486 		return LFA_EEE_MISMATCH;
487 	}
488 
489 	/* LFA conditions are met */
490 	return 0;
491 }
492 #endif
493 /******************************************************************/
494 /*			EPIO/GPIO section			  */
495 /******************************************************************/
496 #if (!defined EXCLUDE_WARPCORE)
elink_get_epio(struct elink_dev * cb,u32 epio_pin,u32 * en)497 static void elink_get_epio(struct elink_dev *cb, u32 epio_pin, u32 *en)
498 {
499 	u32 epio_mask, gp_oenable;
500 	*en = 0;
501 	/* Sanity check */
502 	if (epio_pin > 31) {
503 		ELINK_DEBUG_P1(cb, "Invalid EPIO pin %d to get\n", epio_pin);
504 		return;
505 	}
506 
507 	epio_mask = 1 << epio_pin;
508 	/* Set this EPIO to output */
509 	gp_oenable = REG_RD(cb, MCP_REG_MCPR_GP_OENABLE);
510 	REG_WR(cb, MCP_REG_MCPR_GP_OENABLE, gp_oenable & ~epio_mask);
511 
512 	*en = (REG_RD(cb, MCP_REG_MCPR_GP_INPUTS) & epio_mask) >> epio_pin;
513 }
elink_set_epio(struct elink_dev * cb,u32 epio_pin,u32 en)514 static void elink_set_epio(struct elink_dev *cb, u32 epio_pin, u32 en)
515 {
516 	u32 epio_mask, gp_output, gp_oenable;
517 
518 	/* Sanity check */
519 	if (epio_pin > 31) {
520 		ELINK_DEBUG_P1(cb, "Invalid EPIO pin %d to set\n", epio_pin);
521 		return;
522 	}
523 	ELINK_DEBUG_P2(cb, "Setting EPIO pin %d to %d\n", epio_pin, en);
524 	epio_mask = 1 << epio_pin;
525 	/* Set this EPIO to output */
526 	gp_output = REG_RD(cb, MCP_REG_MCPR_GP_OUTPUTS);
527 	if (en)
528 		gp_output |= epio_mask;
529 	else
530 		gp_output &= ~epio_mask;
531 
532 	REG_WR(cb, MCP_REG_MCPR_GP_OUTPUTS, gp_output);
533 
534 	/* Set the value for this EPIO */
535 	gp_oenable = REG_RD(cb, MCP_REG_MCPR_GP_OENABLE);
536 	REG_WR(cb, MCP_REG_MCPR_GP_OENABLE, gp_oenable | epio_mask);
537 }
538 
elink_set_cfg_pin(struct elink_dev * cb,u32 pin_cfg,u32 val)539 static void elink_set_cfg_pin(struct elink_dev *cb, u32 pin_cfg, u32 val)
540 {
541 	if (pin_cfg == PIN_CFG_NA)
542 		return;
543 	if (pin_cfg >= PIN_CFG_EPIO0) {
544 		elink_set_epio(cb, pin_cfg - PIN_CFG_EPIO0, val);
545 	} else {
546 		u8 gpio_num = (pin_cfg - PIN_CFG_GPIO0_P0) & 0x3;
547 		u8 gpio_port = (pin_cfg - PIN_CFG_GPIO0_P0) >> 2;
548 		ELINK_SET_GPIO(cb, gpio_num, (u8)val, gpio_port);
549 	}
550 }
551 
elink_get_cfg_pin(struct elink_dev * cb,u32 pin_cfg,u32 * val)552 static u32 elink_get_cfg_pin(struct elink_dev *cb, u32 pin_cfg, u32 *val)
553 {
554 	if (pin_cfg == PIN_CFG_NA)
555 		return ELINK_STATUS_ERROR;
556 	if (pin_cfg >= PIN_CFG_EPIO0) {
557 		elink_get_epio(cb, pin_cfg - PIN_CFG_EPIO0, val);
558 	} else {
559 		u8 gpio_num = (pin_cfg - PIN_CFG_GPIO0_P0) & 0x3;
560 		u8 gpio_port = (pin_cfg - PIN_CFG_GPIO0_P0) >> 2;
561 		*val = ELINK_GET_GPIO(cb, gpio_num, gpio_port);
562 	}
563 	return ELINK_STATUS_OK;
564 
565 }
566 #endif /* (!defined EXCLUDE_WARPCORE) */
567 /******************************************************************/
568 /*				ETS section			  */
569 /******************************************************************/
570 #ifdef ELINK_ENHANCEMENTS
elink_ets_e2e3a0_disabled(struct elink_params * params)571 static void elink_ets_e2e3a0_disabled(struct elink_params *params)
572 {
573 	/* ETS disabled configuration*/
574 	struct elink_dev *cb = params->cb;
575 
576 	ELINK_DEBUG_P0(cb, "ETS E2E3 disabled configuration\n");
577 
578 	/* mapping between entry  priority to client number (0,1,2 -debug and
579 	 * management clients, 3 - COS0 client, 4 - COS client)(HIGHEST)
580 	 * 3bits client num.
581 	 *   PRI4    |    PRI3    |    PRI2    |    PRI1    |    PRI0
582 	 * cos1-100     cos0-011     dbg1-010     dbg0-001     MCP-000
583 	 */
584 
585 	REG_WR(cb, NIG_REG_P0_TX_ARB_PRIORITY_CLIENT, 0x4688);
586 	/* Bitmap of 5bits length. Each bit specifies whether the entry behaves
587 	 * as strict.  Bits 0,1,2 - debug and management entries, 3 -
588 	 * COS0 entry, 4 - COS1 entry.
589 	 * COS1 | COS0 | DEBUG1 | DEBUG0 | MGMT
590 	 * bit4   bit3	  bit2   bit1	  bit0
591 	 * MCP and debug are strict
592 	 */
593 
594 	REG_WR(cb, NIG_REG_P0_TX_ARB_CLIENT_IS_STRICT, 0x7);
595 	/* defines which entries (clients) are subjected to WFQ arbitration */
596 	REG_WR(cb, NIG_REG_P0_TX_ARB_CLIENT_IS_SUBJECT2WFQ, 0);
597 	/* For strict priority entries defines the number of consecutive
598 	 * slots for the highest priority.
599 	 */
600 	REG_WR(cb, NIG_REG_P0_TX_ARB_NUM_STRICT_ARB_SLOTS, 0x100);
601 	/* mapping between the CREDIT_WEIGHT registers and actual client
602 	 * numbers
603 	 */
604 	REG_WR(cb, NIG_REG_P0_TX_ARB_CLIENT_CREDIT_MAP, 0);
605 	REG_WR(cb, NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_0, 0);
606 	REG_WR(cb, NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_1, 0);
607 
608 	REG_WR(cb, NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_0, 0);
609 	REG_WR(cb, NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_1, 0);
610 	REG_WR(cb, PBF_REG_HIGH_PRIORITY_COS_NUM, 0);
611 	/* ETS mode disable */
612 	REG_WR(cb, PBF_REG_ETS_ENABLED, 0);
613 	/* If ETS mode is enabled (there is no strict priority) defines a WFQ
614 	 * weight for COS0/COS1.
615 	 */
616 	REG_WR(cb, PBF_REG_COS0_WEIGHT, 0x2710);
617 	REG_WR(cb, PBF_REG_COS1_WEIGHT, 0x2710);
618 	/* Upper bound that COS0_WEIGHT can reach in the WFQ arbiter */
619 	REG_WR(cb, PBF_REG_COS0_UPPER_BOUND, 0x989680);
620 	REG_WR(cb, PBF_REG_COS1_UPPER_BOUND, 0x989680);
621 	/* Defines the number of consecutive slots for the strict priority */
622 	REG_WR(cb, PBF_REG_NUM_STRICT_ARB_SLOTS, 0);
623 }
624 /******************************************************************************
625 * Description:
626 *	Getting min_w_val will be set according to line speed .
627 *.
628 ******************************************************************************/
elink_ets_get_min_w_val_nig(const struct elink_vars * vars)629 static u32 elink_ets_get_min_w_val_nig(const struct elink_vars *vars)
630 {
631 	u32 min_w_val = 0;
632 	/* Calculate min_w_val.*/
633 	if (vars->link_up) {
634 		if (vars->line_speed == ELINK_SPEED_20000)
635 			min_w_val = ELINK_ETS_E3B0_NIG_MIN_W_VAL_20GBPS;
636 		else
637 			min_w_val = ELINK_ETS_E3B0_NIG_MIN_W_VAL_UP_TO_10GBPS;
638 	} else
639 		min_w_val = ELINK_ETS_E3B0_NIG_MIN_W_VAL_20GBPS;
640 	/* If the link isn't up (static configuration for example ) The
641 	 * link will be according to 20GBPS.
642 	 */
643 	return min_w_val;
644 }
645 /******************************************************************************
646 * Description:
647 *	Getting credit upper bound form min_w_val.
648 *.
649 ******************************************************************************/
elink_ets_get_credit_upper_bound(const u32 min_w_val)650 static u32 elink_ets_get_credit_upper_bound(const u32 min_w_val)
651 {
652 	const u32 credit_upper_bound = (u32)ELINK_MAXVAL((150 * min_w_val),
653 						ELINK_MAX_PACKET_SIZE);
654 	return credit_upper_bound;
655 }
656 /******************************************************************************
657 * Description:
658 *	Set credit upper bound for NIG.
659 *.
660 ******************************************************************************/
elink_ets_e3b0_set_credit_upper_bound_nig(const struct elink_params * params,const u32 min_w_val)661 static void elink_ets_e3b0_set_credit_upper_bound_nig(
662 	const struct elink_params *params,
663 	const u32 min_w_val)
664 {
665 	struct elink_dev *cb = params->cb;
666 	const u8 port = params->port;
667 	const u32 credit_upper_bound =
668 	    elink_ets_get_credit_upper_bound(min_w_val);
669 
670 	REG_WR(cb, (port) ? NIG_REG_P1_TX_ARB_CREDIT_UPPER_BOUND_0 :
671 		NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_0, credit_upper_bound);
672 	REG_WR(cb, (port) ? NIG_REG_P1_TX_ARB_CREDIT_UPPER_BOUND_1 :
673 		   NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_1, credit_upper_bound);
674 	REG_WR(cb, (port) ? NIG_REG_P1_TX_ARB_CREDIT_UPPER_BOUND_2 :
675 		   NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_2, credit_upper_bound);
676 	REG_WR(cb, (port) ? NIG_REG_P1_TX_ARB_CREDIT_UPPER_BOUND_3 :
677 		   NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_3, credit_upper_bound);
678 	REG_WR(cb, (port) ? NIG_REG_P1_TX_ARB_CREDIT_UPPER_BOUND_4 :
679 		   NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_4, credit_upper_bound);
680 	REG_WR(cb, (port) ? NIG_REG_P1_TX_ARB_CREDIT_UPPER_BOUND_5 :
681 		   NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_5, credit_upper_bound);
682 
683 	if (!port) {
684 		REG_WR(cb, NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_6,
685 			credit_upper_bound);
686 		REG_WR(cb, NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_7,
687 			credit_upper_bound);
688 		REG_WR(cb, NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_8,
689 			credit_upper_bound);
690 	}
691 }
692 /******************************************************************************
693 * Description:
694 *	Will return the NIG ETS registers to init values.Except
695 *	credit_upper_bound.
696 *	That isn't used in this configuration (No WFQ is enabled) and will be
697 *	configured acording to spec
698 *.
699 ******************************************************************************/
elink_ets_e3b0_nig_disabled(const struct elink_params * params,const struct elink_vars * vars)700 static void elink_ets_e3b0_nig_disabled(const struct elink_params *params,
701 					const struct elink_vars *vars)
702 {
703 	struct elink_dev *cb = params->cb;
704 	const u8 port = params->port;
705 	const u32 min_w_val = elink_ets_get_min_w_val_nig(vars);
706 	/* Mapping between entry  priority to client number (0,1,2 -debug and
707 	 * management clients, 3 - COS0 client, 4 - COS1, ... 8 -
708 	 * COS5)(HIGHEST) 4bits client num.TODO_ETS - Should be done by
709 	 * reset value or init tool
710 	 */
711 	if (port) {
712 		REG_WR(cb, NIG_REG_P1_TX_ARB_PRIORITY_CLIENT2_LSB, 0x543210);
713 		REG_WR(cb, NIG_REG_P1_TX_ARB_PRIORITY_CLIENT2_MSB, 0x0);
714 	} else {
715 		REG_WR(cb, NIG_REG_P0_TX_ARB_PRIORITY_CLIENT2_LSB, 0x76543210);
716 		REG_WR(cb, NIG_REG_P0_TX_ARB_PRIORITY_CLIENT2_MSB, 0x8);
717 	}
718 	/* For strict priority entries defines the number of consecutive
719 	 * slots for the highest priority.
720 	 */
721 	REG_WR(cb, (port) ? NIG_REG_P1_TX_ARB_NUM_STRICT_ARB_SLOTS :
722 		   NIG_REG_P1_TX_ARB_NUM_STRICT_ARB_SLOTS, 0x100);
723 	/* Mapping between the CREDIT_WEIGHT registers and actual client
724 	 * numbers
725 	 */
726 	if (port) {
727 		/*Port 1 has 6 COS*/
728 		REG_WR(cb, NIG_REG_P1_TX_ARB_CLIENT_CREDIT_MAP2_LSB, 0x210543);
729 		REG_WR(cb, NIG_REG_P1_TX_ARB_CLIENT_CREDIT_MAP2_MSB, 0x0);
730 	} else {
731 		/*Port 0 has 9 COS*/
732 		REG_WR(cb, NIG_REG_P0_TX_ARB_CLIENT_CREDIT_MAP2_LSB,
733 		       0x43210876);
734 		REG_WR(cb, NIG_REG_P0_TX_ARB_CLIENT_CREDIT_MAP2_MSB, 0x5);
735 	}
736 
737 	/* Bitmap of 5bits length. Each bit specifies whether the entry behaves
738 	 * as strict.  Bits 0,1,2 - debug and management entries, 3 -
739 	 * COS0 entry, 4 - COS1 entry.
740 	 * COS1 | COS0 | DEBUG1 | DEBUG0 | MGMT
741 	 * bit4   bit3	  bit2   bit1	  bit0
742 	 * MCP and debug are strict
743 	 */
744 	if (port)
745 		REG_WR(cb, NIG_REG_P1_TX_ARB_CLIENT_IS_STRICT, 0x3f);
746 	else
747 		REG_WR(cb, NIG_REG_P0_TX_ARB_CLIENT_IS_STRICT, 0x1ff);
748 	/* defines which entries (clients) are subjected to WFQ arbitration */
749 	REG_WR(cb, (port) ? NIG_REG_P1_TX_ARB_CLIENT_IS_SUBJECT2WFQ :
750 		   NIG_REG_P0_TX_ARB_CLIENT_IS_SUBJECT2WFQ, 0);
751 
752 	/* Please notice the register address are note continuous and a
753 	 * for here is note appropriate.In 2 port mode port0 only COS0-5
754 	 * can be used. DEBUG1,DEBUG1,MGMT are never used for WFQ* In 4
755 	 * port mode port1 only COS0-2 can be used. DEBUG1,DEBUG1,MGMT
756 	 * are never used for WFQ
757 	 */
758 	REG_WR(cb, (port) ? NIG_REG_P1_TX_ARB_CREDIT_WEIGHT_0 :
759 		   NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_0, 0x0);
760 	REG_WR(cb, (port) ? NIG_REG_P1_TX_ARB_CREDIT_WEIGHT_1 :
761 		   NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_1, 0x0);
762 	REG_WR(cb, (port) ? NIG_REG_P1_TX_ARB_CREDIT_WEIGHT_2 :
763 		   NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_2, 0x0);
764 	REG_WR(cb, (port) ? NIG_REG_P1_TX_ARB_CREDIT_WEIGHT_3 :
765 		   NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_3, 0x0);
766 	REG_WR(cb, (port) ? NIG_REG_P1_TX_ARB_CREDIT_WEIGHT_4 :
767 		   NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_4, 0x0);
768 	REG_WR(cb, (port) ? NIG_REG_P1_TX_ARB_CREDIT_WEIGHT_5 :
769 		   NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_5, 0x0);
770 	if (!port) {
771 		REG_WR(cb, NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_6, 0x0);
772 		REG_WR(cb, NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_7, 0x0);
773 		REG_WR(cb, NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_8, 0x0);
774 	}
775 
776 	elink_ets_e3b0_set_credit_upper_bound_nig(params, min_w_val);
777 }
778 /******************************************************************************
779 * Description:
780 *	Set credit upper bound for PBF.
781 *.
782 ******************************************************************************/
elink_ets_e3b0_set_credit_upper_bound_pbf(const struct elink_params * params,const u32 min_w_val)783 static void elink_ets_e3b0_set_credit_upper_bound_pbf(
784 	const struct elink_params *params,
785 	const u32 min_w_val)
786 {
787 	struct elink_dev *cb = params->cb;
788 	const u32 credit_upper_bound =
789 	    elink_ets_get_credit_upper_bound(min_w_val);
790 	const u8 port = params->port;
791 	u32 base_upper_bound = 0;
792 	u8 max_cos = 0;
793 	u8 i = 0;
794 	/* In 2 port mode port0 has COS0-5 that can be used for WFQ.In 4
795 	 * port mode port1 has COS0-2 that can be used for WFQ.
796 	 */
797 	if (!port) {
798 		base_upper_bound = PBF_REG_COS0_UPPER_BOUND_P0;
799 		max_cos = ELINK_DCBX_E3B0_MAX_NUM_COS_PORT0;
800 	} else {
801 		base_upper_bound = PBF_REG_COS0_UPPER_BOUND_P1;
802 		max_cos = ELINK_DCBX_E3B0_MAX_NUM_COS_PORT1;
803 	}
804 
805 	for (i = 0; i < max_cos; i++)
806 		REG_WR(cb, base_upper_bound + (i << 2), credit_upper_bound);
807 }
808 
809 /******************************************************************************
810 * Description:
811 *	Will return the PBF ETS registers to init values.Except
812 *	credit_upper_bound.
813 *	That isn't used in this configuration (No WFQ is enabled) and will be
814 *	configured acording to spec
815 *.
816 ******************************************************************************/
elink_ets_e3b0_pbf_disabled(const struct elink_params * params)817 static void elink_ets_e3b0_pbf_disabled(const struct elink_params *params)
818 {
819 	struct elink_dev *cb = params->cb;
820 	const u8 port = params->port;
821 	const u32 min_w_val_pbf = ELINK_ETS_E3B0_PBF_MIN_W_VAL;
822 	u8 i = 0;
823 	u32 base_weight = 0;
824 	u8 max_cos = 0;
825 
826 	/* Mapping between entry  priority to client number 0 - COS0
827 	 * client, 2 - COS1, ... 5 - COS5)(HIGHEST) 4bits client num.
828 	 * TODO_ETS - Should be done by reset value or init tool
829 	 */
830 	if (port)
831 		/*  0x688 (|011|0 10|00 1|000) */
832 		REG_WR(cb, PBF_REG_ETS_ARB_PRIORITY_CLIENT_P1 , 0x688);
833 	else
834 		/*  (10 1|100 |011|0 10|00 1|000) */
835 		REG_WR(cb, PBF_REG_ETS_ARB_PRIORITY_CLIENT_P0 , 0x2C688);
836 
837 	/* TODO_ETS - Should be done by reset value or init tool */
838 	if (port)
839 		/* 0x688 (|011|0 10|00 1|000)*/
840 		REG_WR(cb, PBF_REG_ETS_ARB_CLIENT_CREDIT_MAP_P1, 0x688);
841 	else
842 	/* 0x2C688 (10 1|100 |011|0 10|00 1|000) */
843 	REG_WR(cb, PBF_REG_ETS_ARB_CLIENT_CREDIT_MAP_P0, 0x2C688);
844 
845 	REG_WR(cb, (port) ? PBF_REG_ETS_ARB_NUM_STRICT_ARB_SLOTS_P1 :
846 		   PBF_REG_ETS_ARB_NUM_STRICT_ARB_SLOTS_P0 , 0x100);
847 
848 
849 	REG_WR(cb, (port) ? PBF_REG_ETS_ARB_CLIENT_IS_STRICT_P1 :
850 		   PBF_REG_ETS_ARB_CLIENT_IS_STRICT_P0 , 0);
851 
852 	REG_WR(cb, (port) ? PBF_REG_ETS_ARB_CLIENT_IS_SUBJECT2WFQ_P1 :
853 		   PBF_REG_ETS_ARB_CLIENT_IS_SUBJECT2WFQ_P0 , 0);
854 	/* In 2 port mode port0 has COS0-5 that can be used for WFQ.
855 	 * In 4 port mode port1 has COS0-2 that can be used for WFQ.
856 	 */
857 	if (!port) {
858 		base_weight = PBF_REG_COS0_WEIGHT_P0;
859 		max_cos = ELINK_DCBX_E3B0_MAX_NUM_COS_PORT0;
860 	} else {
861 		base_weight = PBF_REG_COS0_WEIGHT_P1;
862 		max_cos = ELINK_DCBX_E3B0_MAX_NUM_COS_PORT1;
863 	}
864 
865 	for (i = 0; i < max_cos; i++)
866 		REG_WR(cb, base_weight + (0x4 * i), 0);
867 
868 	elink_ets_e3b0_set_credit_upper_bound_pbf(params, min_w_val_pbf);
869 }
870 /******************************************************************************
871 * Description:
872 *	E3B0 disable will return basicly the values to init values.
873 *.
874 ******************************************************************************/
elink_ets_e3b0_disabled(const struct elink_params * params,const struct elink_vars * vars)875 static elink_status_t elink_ets_e3b0_disabled(const struct elink_params *params,
876 				   const struct elink_vars *vars)
877 {
878 	struct elink_dev *cb = params->cb;
879 
880 	if (!CHIP_IS_E3B0(params->chip_id)) {
881 		ELINK_DEBUG_P0(cb,
882 		   "elink_ets_e3b0_disabled the chip isn't E3B0\n");
883 		return ELINK_STATUS_ERROR;
884 	}
885 
886 	elink_ets_e3b0_nig_disabled(params, vars);
887 
888 	elink_ets_e3b0_pbf_disabled(params);
889 
890 	return ELINK_STATUS_OK;
891 }
892 
893 /******************************************************************************
894 * Description:
895 *	Disable will return basicly the values to init values.
896 *
897 ******************************************************************************/
elink_ets_disabled(struct elink_params * params,struct elink_vars * vars)898 elink_status_t elink_ets_disabled(struct elink_params *params,
899 		      struct elink_vars *vars)
900 {
901 	struct elink_dev *cb = params->cb;
902 	elink_status_t elink_status = ELINK_STATUS_OK;
903 
904 	if ((CHIP_IS_E2(params->chip_id)) || (CHIP_IS_E3A0(params->chip_id)))
905 		elink_ets_e2e3a0_disabled(params);
906 	else if (CHIP_IS_E3B0(params->chip_id))
907 		elink_status = elink_ets_e3b0_disabled(params, vars);
908 	else {
909 		ELINK_DEBUG_P0(cb, "elink_ets_disabled - chip not supported\n");
910 		return ELINK_STATUS_ERROR;
911 	}
912 
913 	return elink_status;
914 }
915 
916 /******************************************************************************
917 * Description
918 *	Set the COS mappimg to SP and BW until this point all the COS are not
919 *	set as SP or BW.
920 ******************************************************************************/
elink_ets_e3b0_cli_map(const struct elink_params * params,const struct elink_ets_params * ets_params,const u8 cos_sp_bitmap,const u8 cos_bw_bitmap)921 static elink_status_t elink_ets_e3b0_cli_map(const struct elink_params *params,
922 				  const struct elink_ets_params *ets_params,
923 				  const u8 cos_sp_bitmap,
924 				  const u8 cos_bw_bitmap)
925 {
926 	struct elink_dev *cb = params->cb;
927 	const u8 port = params->port;
928 	const u8 nig_cli_sp_bitmap = 0x7 | (cos_sp_bitmap << 3);
929 	const u8 pbf_cli_sp_bitmap = cos_sp_bitmap;
930 	const u8 nig_cli_subject2wfq_bitmap = cos_bw_bitmap << 3;
931 	const u8 pbf_cli_subject2wfq_bitmap = cos_bw_bitmap;
932 
933 	REG_WR(cb, (port) ? NIG_REG_P1_TX_ARB_CLIENT_IS_STRICT :
934 	       NIG_REG_P0_TX_ARB_CLIENT_IS_STRICT, nig_cli_sp_bitmap);
935 
936 	REG_WR(cb, (port) ? PBF_REG_ETS_ARB_CLIENT_IS_STRICT_P1 :
937 	       PBF_REG_ETS_ARB_CLIENT_IS_STRICT_P0 , pbf_cli_sp_bitmap);
938 
939 	REG_WR(cb, (port) ? NIG_REG_P1_TX_ARB_CLIENT_IS_SUBJECT2WFQ :
940 	       NIG_REG_P0_TX_ARB_CLIENT_IS_SUBJECT2WFQ,
941 	       nig_cli_subject2wfq_bitmap);
942 
943 	REG_WR(cb, (port) ? PBF_REG_ETS_ARB_CLIENT_IS_SUBJECT2WFQ_P1 :
944 	       PBF_REG_ETS_ARB_CLIENT_IS_SUBJECT2WFQ_P0,
945 	       pbf_cli_subject2wfq_bitmap);
946 
947 	return ELINK_STATUS_OK;
948 }
949 
950 /******************************************************************************
951 * Description:
952 *	This function is needed because NIG ARB_CREDIT_WEIGHT_X are
953 *	not continues and ARB_CREDIT_WEIGHT_0 + offset is suitable.
954 ******************************************************************************/
elink_ets_e3b0_set_cos_bw(struct elink_dev * cb,const u8 cos_entry,const u32 min_w_val_nig,const u32 min_w_val_pbf,const u16 total_bw,const u8 bw,const u8 port)955 static elink_status_t elink_ets_e3b0_set_cos_bw(struct elink_dev *cb,
956 				     const u8 cos_entry,
957 				     const u32 min_w_val_nig,
958 				     const u32 min_w_val_pbf,
959 				     const u16 total_bw,
960 				     const u8 bw,
961 				     const u8 port)
962 {
963 	u32 nig_reg_adress_crd_weight = 0;
964 	u32 pbf_reg_adress_crd_weight = 0;
965 	/* Calculate and set BW for this COS - use 1 instead of 0 for BW */
966 	const u32 cos_bw_nig = ((bw ? bw : 1) * min_w_val_nig) / total_bw;
967 	const u32 cos_bw_pbf = ((bw ? bw : 1) * min_w_val_pbf) / total_bw;
968 
969 	switch (cos_entry) {
970 	case 0:
971 	    nig_reg_adress_crd_weight =
972 		 (port) ? NIG_REG_P1_TX_ARB_CREDIT_WEIGHT_0 :
973 		     NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_0;
974 	     pbf_reg_adress_crd_weight = (port) ?
975 		 PBF_REG_COS0_WEIGHT_P1 : PBF_REG_COS0_WEIGHT_P0;
976 	     break;
977 	case 1:
978 	     nig_reg_adress_crd_weight = (port) ?
979 		 NIG_REG_P1_TX_ARB_CREDIT_WEIGHT_1 :
980 		 NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_1;
981 	     pbf_reg_adress_crd_weight = (port) ?
982 		 PBF_REG_COS1_WEIGHT_P1 : PBF_REG_COS1_WEIGHT_P0;
983 	     break;
984 	case 2:
985 	     nig_reg_adress_crd_weight = (port) ?
986 		 NIG_REG_P1_TX_ARB_CREDIT_WEIGHT_2 :
987 		 NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_2;
988 
989 		 pbf_reg_adress_crd_weight = (port) ?
990 		     PBF_REG_COS2_WEIGHT_P1 : PBF_REG_COS2_WEIGHT_P0;
991 	     break;
992 	case 3:
993 	    if (port)
994 			return ELINK_STATUS_ERROR;
995 	     nig_reg_adress_crd_weight =
996 		 NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_3;
997 	     pbf_reg_adress_crd_weight =
998 		 PBF_REG_COS3_WEIGHT_P0;
999 	     break;
1000 	case 4:
1001 	    if (port)
1002 		return ELINK_STATUS_ERROR;
1003 	     nig_reg_adress_crd_weight =
1004 		 NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_4;
1005 	     pbf_reg_adress_crd_weight = PBF_REG_COS4_WEIGHT_P0;
1006 	     break;
1007 	case 5:
1008 	    if (port)
1009 		return ELINK_STATUS_ERROR;
1010 	     nig_reg_adress_crd_weight =
1011 		 NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_5;
1012 	     pbf_reg_adress_crd_weight = PBF_REG_COS5_WEIGHT_P0;
1013 	     break;
1014 	}
1015 
1016 	REG_WR(cb, nig_reg_adress_crd_weight, cos_bw_nig);
1017 
1018 	REG_WR(cb, pbf_reg_adress_crd_weight, cos_bw_pbf);
1019 
1020 	return ELINK_STATUS_OK;
1021 }
1022 /******************************************************************************
1023 * Description:
1024 *	Calculate the total BW.A value of 0 isn't legal.
1025 *
1026 ******************************************************************************/
elink_ets_e3b0_get_total_bw(const struct elink_params * params,struct elink_ets_params * ets_params,u16 * total_bw)1027 static elink_status_t elink_ets_e3b0_get_total_bw(
1028 	const struct elink_params *params,
1029 	struct elink_ets_params *ets_params,
1030 	u16 *total_bw)
1031 {
1032 	struct elink_dev *cb = params->cb;
1033 	u8 cos_idx = 0;
1034 	u8 is_bw_cos_exist = 0;
1035 
1036 	*total_bw = 0 ;
1037 	/* Calculate total BW requested */
1038 	for (cos_idx = 0; cos_idx < ets_params->num_of_cos; cos_idx++) {
1039 		if (ets_params->cos[cos_idx].state == elink_cos_state_bw) {
1040 			is_bw_cos_exist = 1;
1041 			if (!ets_params->cos[cos_idx].params.bw_params.bw) {
1042 				ELINK_DEBUG_P0(cb, "elink_ets_E3B0_config BW"
1043 						   "was set to 0\n");
1044 				/* This is to prevent a state when ramrods
1045 				 * can't be sent
1046 				 */
1047 				ets_params->cos[cos_idx].params.bw_params.bw
1048 					 = 1;
1049 			}
1050 			*total_bw +=
1051 				ets_params->cos[cos_idx].params.bw_params.bw;
1052 		}
1053 	}
1054 
1055 	/* Check total BW is valid */
1056 	if ((is_bw_cos_exist == 1) && (*total_bw != 100)) {
1057 		if (*total_bw == 0) {
1058 			ELINK_DEBUG_P0(cb,
1059 			   "elink_ets_E3B0_config total BW shouldn't be 0\n");
1060 			return ELINK_STATUS_ERROR;
1061 		}
1062 		ELINK_DEBUG_P0(cb,
1063 		   "elink_ets_E3B0_config total BW should be 100\n");
1064 		/* We can handle a case whre the BW isn't 100 this can happen
1065 		 * if the TC are joined.
1066 		 */
1067 	}
1068 	return ELINK_STATUS_OK;
1069 }
1070 
1071 /******************************************************************************
1072 * Description:
1073 *	Invalidate all the sp_pri_to_cos.
1074 *
1075 ******************************************************************************/
elink_ets_e3b0_sp_pri_to_cos_init(u8 * sp_pri_to_cos)1076 static void elink_ets_e3b0_sp_pri_to_cos_init(u8 *sp_pri_to_cos)
1077 {
1078 	u8 pri = 0;
1079 	for (pri = 0; pri < ELINK_DCBX_MAX_NUM_COS; pri++)
1080 		sp_pri_to_cos[pri] = DCBX_INVALID_COS;
1081 }
1082 /******************************************************************************
1083 * Description:
1084 *	Calculate and set the SP (ARB_PRIORITY_CLIENT) NIG and PBF registers
1085 *	according to sp_pri_to_cos.
1086 *
1087 ******************************************************************************/
elink_ets_e3b0_sp_pri_to_cos_set(const struct elink_params * params,u8 * sp_pri_to_cos,const u8 pri,const u8 cos_entry)1088 static elink_status_t elink_ets_e3b0_sp_pri_to_cos_set(const struct elink_params *params,
1089 					    u8 *sp_pri_to_cos, const u8 pri,
1090 					    const u8 cos_entry)
1091 {
1092 	struct elink_dev *cb = params->cb;
1093 	const u8 port = params->port;
1094 	const u8 max_num_of_cos = (port) ? ELINK_DCBX_E3B0_MAX_NUM_COS_PORT1 :
1095 		ELINK_DCBX_E3B0_MAX_NUM_COS_PORT0;
1096 
1097 	if (pri >= max_num_of_cos) {
1098 		ELINK_DEBUG_P0(cb, "elink_ets_e3b0_sp_pri_to_cos_set invalid "
1099 		   "parameter Illegal strict priority\n");
1100 	    return ELINK_STATUS_ERROR;
1101 	}
1102 
1103 	if (sp_pri_to_cos[pri] != DCBX_INVALID_COS) {
1104 		ELINK_DEBUG_P0(cb, "elink_ets_e3b0_sp_pri_to_cos_set invalid "
1105 				   "parameter There can't be two COS's with "
1106 				   "the same strict pri\n");
1107 		return ELINK_STATUS_ERROR;
1108 	}
1109 
1110 	sp_pri_to_cos[pri] = cos_entry;
1111 	return ELINK_STATUS_OK;
1112 
1113 }
1114 
1115 /******************************************************************************
1116 * Description:
1117 *	Returns the correct value according to COS and priority in
1118 *	the sp_pri_cli register.
1119 *
1120 ******************************************************************************/
elink_e3b0_sp_get_pri_cli_reg(const u8 cos,const u8 cos_offset,const u8 pri_set,const u8 pri_offset,const u8 entry_size)1121 static u64 elink_e3b0_sp_get_pri_cli_reg(const u8 cos, const u8 cos_offset,
1122 					 const u8 pri_set,
1123 					 const u8 pri_offset,
1124 					 const u8 entry_size)
1125 {
1126 	u64 pri_cli_nig = 0;
1127 	pri_cli_nig = ((u64)(cos + cos_offset)) << (entry_size *
1128 						    (pri_set + pri_offset));
1129 
1130 	return pri_cli_nig;
1131 }
1132 /******************************************************************************
1133 * Description:
1134 *	Returns the correct value according to COS and priority in the
1135 *	sp_pri_cli register for NIG.
1136 *
1137 ******************************************************************************/
elink_e3b0_sp_get_pri_cli_reg_nig(const u8 cos,const u8 pri_set)1138 static u64 elink_e3b0_sp_get_pri_cli_reg_nig(const u8 cos, const u8 pri_set)
1139 {
1140 	/* MCP Dbg0 and dbg1 are always with higher strict pri*/
1141 	const u8 nig_cos_offset = 3;
1142 	const u8 nig_pri_offset = 3;
1143 
1144 	return elink_e3b0_sp_get_pri_cli_reg(cos, nig_cos_offset, pri_set,
1145 		nig_pri_offset, 4);
1146 
1147 }
1148 /******************************************************************************
1149 * Description:
1150 *	Returns the correct value according to COS and priority in the
1151 *	sp_pri_cli register for PBF.
1152 *
1153 ******************************************************************************/
elink_e3b0_sp_get_pri_cli_reg_pbf(const u8 cos,const u8 pri_set)1154 static u64 elink_e3b0_sp_get_pri_cli_reg_pbf(const u8 cos, const u8 pri_set)
1155 {
1156 	const u8 pbf_cos_offset = 0;
1157 	const u8 pbf_pri_offset = 0;
1158 
1159 	return elink_e3b0_sp_get_pri_cli_reg(cos, pbf_cos_offset, pri_set,
1160 		pbf_pri_offset, 3);
1161 
1162 }
1163 
1164 /******************************************************************************
1165 * Description:
1166 *	Calculate and set the SP (ARB_PRIORITY_CLIENT) NIG and PBF registers
1167 *	according to sp_pri_to_cos.(which COS has higher priority)
1168 *
1169 ******************************************************************************/
elink_ets_e3b0_sp_set_pri_cli_reg(const struct elink_params * params,u8 * sp_pri_to_cos)1170 static elink_status_t elink_ets_e3b0_sp_set_pri_cli_reg(const struct elink_params *params,
1171 					     u8 *sp_pri_to_cos)
1172 {
1173 	struct elink_dev *cb = params->cb;
1174 	u8 i = 0;
1175 	const u8 port = params->port;
1176 	/* MCP Dbg0 and dbg1 are always with higher strict pri*/
1177 	u64 pri_cli_nig = 0x210;
1178 	u32 pri_cli_pbf = 0x0;
1179 	u8 pri_set = 0;
1180 	u8 pri_bitmask = 0;
1181 	const u8 max_num_of_cos = (port) ? ELINK_DCBX_E3B0_MAX_NUM_COS_PORT1 :
1182 		ELINK_DCBX_E3B0_MAX_NUM_COS_PORT0;
1183 
1184 	u8 cos_bit_to_set = (1 << max_num_of_cos) - 1;
1185 
1186 	/* Set all the strict priority first */
1187 	for (i = 0; i < max_num_of_cos; i++) {
1188 		if (sp_pri_to_cos[i] != DCBX_INVALID_COS) {
1189 			if (sp_pri_to_cos[i] >= ELINK_DCBX_MAX_NUM_COS) {
1190 				ELINK_DEBUG_P0(cb,
1191 					   "elink_ets_e3b0_sp_set_pri_cli_reg "
1192 					   "invalid cos entry\n");
1193 				return ELINK_STATUS_ERROR;
1194 			}
1195 
1196 			pri_cli_nig |= elink_e3b0_sp_get_pri_cli_reg_nig(
1197 			    sp_pri_to_cos[i], pri_set);
1198 
1199 			pri_cli_pbf |= elink_e3b0_sp_get_pri_cli_reg_pbf(
1200 			    sp_pri_to_cos[i], pri_set);
1201 			pri_bitmask = 1 << sp_pri_to_cos[i];
1202 			/* COS is used remove it from bitmap.*/
1203 			if (!(pri_bitmask & cos_bit_to_set)) {
1204 				ELINK_DEBUG_P0(cb,
1205 					"elink_ets_e3b0_sp_set_pri_cli_reg "
1206 					"invalid There can't be two COS's with"
1207 					" the same strict pri\n");
1208 				return ELINK_STATUS_ERROR;
1209 			}
1210 			cos_bit_to_set &= ~pri_bitmask;
1211 			pri_set++;
1212 		}
1213 	}
1214 
1215 	/* Set all the Non strict priority i= COS*/
1216 	for (i = 0; i < max_num_of_cos; i++) {
1217 		pri_bitmask = 1 << i;
1218 		/* Check if COS was already used for SP */
1219 		if (pri_bitmask & cos_bit_to_set) {
1220 			/* COS wasn't used for SP */
1221 			pri_cli_nig |= elink_e3b0_sp_get_pri_cli_reg_nig(
1222 			    i, pri_set);
1223 
1224 			pri_cli_pbf |= elink_e3b0_sp_get_pri_cli_reg_pbf(
1225 			    i, pri_set);
1226 			/* COS is used remove it from bitmap.*/
1227 			cos_bit_to_set &= ~pri_bitmask;
1228 			pri_set++;
1229 		}
1230 	}
1231 
1232 	if (pri_set != max_num_of_cos) {
1233 		ELINK_DEBUG_P0(cb, "elink_ets_e3b0_sp_set_pri_cli_reg not all "
1234 				   "entries were set\n");
1235 		return ELINK_STATUS_ERROR;
1236 	}
1237 
1238 	if (port) {
1239 		/* Only 6 usable clients*/
1240 		REG_WR(cb, NIG_REG_P1_TX_ARB_PRIORITY_CLIENT2_LSB,
1241 		       (u32)pri_cli_nig);
1242 
1243 		REG_WR(cb, PBF_REG_ETS_ARB_PRIORITY_CLIENT_P1 , pri_cli_pbf);
1244 	} else {
1245 		/* Only 9 usable clients*/
1246 		const u32 pri_cli_nig_lsb = (u32) (pri_cli_nig);
1247 		const u32 pri_cli_nig_msb = (u32) ((pri_cli_nig >> 32) & 0xF);
1248 
1249 		REG_WR(cb, NIG_REG_P0_TX_ARB_PRIORITY_CLIENT2_LSB,
1250 		       pri_cli_nig_lsb);
1251 		REG_WR(cb, NIG_REG_P0_TX_ARB_PRIORITY_CLIENT2_MSB,
1252 		       pri_cli_nig_msb);
1253 
1254 		REG_WR(cb, PBF_REG_ETS_ARB_PRIORITY_CLIENT_P0 , pri_cli_pbf);
1255 	}
1256 	return ELINK_STATUS_OK;
1257 }
1258 
1259 /******************************************************************************
1260 * Description:
1261 *	Configure the COS to ETS according to BW and SP settings.
1262 ******************************************************************************/
elink_ets_e3b0_config(const struct elink_params * params,const struct elink_vars * vars,struct elink_ets_params * ets_params)1263 elink_status_t elink_ets_e3b0_config(const struct elink_params *params,
1264 			 const struct elink_vars *vars,
1265 			 struct elink_ets_params *ets_params)
1266 {
1267 	struct elink_dev *cb = params->cb;
1268 	elink_status_t elink_status = ELINK_STATUS_OK;
1269 	const u8 port = params->port;
1270 	u16 total_bw = 0;
1271 	const u32 min_w_val_nig = elink_ets_get_min_w_val_nig(vars);
1272 	const u32 min_w_val_pbf = ELINK_ETS_E3B0_PBF_MIN_W_VAL;
1273 	u8 cos_bw_bitmap = 0;
1274 	u8 cos_sp_bitmap = 0;
1275 	u8 sp_pri_to_cos[ELINK_DCBX_MAX_NUM_COS] = {0};
1276 	const u8 max_num_of_cos = (port) ? ELINK_DCBX_E3B0_MAX_NUM_COS_PORT1 :
1277 		ELINK_DCBX_E3B0_MAX_NUM_COS_PORT0;
1278 	u8 cos_entry = 0;
1279 
1280 	if (!CHIP_IS_E3B0(params->chip_id)) {
1281 		ELINK_DEBUG_P0(cb,
1282 		   "elink_ets_e3b0_disabled the chip isn't E3B0\n");
1283 		return ELINK_STATUS_ERROR;
1284 	}
1285 
1286 	if ((ets_params->num_of_cos > max_num_of_cos)) {
1287 		ELINK_DEBUG_P0(cb, "elink_ets_E3B0_config the number of COS "
1288 				   "isn't supported\n");
1289 		return ELINK_STATUS_ERROR;
1290 	}
1291 
1292 	/* Prepare sp strict priority parameters*/
1293 	elink_ets_e3b0_sp_pri_to_cos_init(sp_pri_to_cos);
1294 
1295 	/* Prepare BW parameters*/
1296 	elink_status = elink_ets_e3b0_get_total_bw(params, ets_params,
1297 						   &total_bw);
1298 	if (elink_status != ELINK_STATUS_OK) {
1299 		ELINK_DEBUG_P0(cb,
1300 		   "elink_ets_E3B0_config get_total_bw failed\n");
1301 		return ELINK_STATUS_ERROR;
1302 	}
1303 
1304 	/* Upper bound is set according to current link speed (min_w_val
1305 	 * should be the same for upper bound and COS credit val).
1306 	 */
1307 	elink_ets_e3b0_set_credit_upper_bound_nig(params, min_w_val_nig);
1308 	elink_ets_e3b0_set_credit_upper_bound_pbf(params, min_w_val_pbf);
1309 
1310 
1311 	for (cos_entry = 0; cos_entry < ets_params->num_of_cos; cos_entry++) {
1312 		if (elink_cos_state_bw == ets_params->cos[cos_entry].state) {
1313 			cos_bw_bitmap |= (1 << cos_entry);
1314 			/* The function also sets the BW in HW(not the mappin
1315 			 * yet)
1316 			 */
1317 			elink_status = elink_ets_e3b0_set_cos_bw(
1318 				cb, cos_entry, min_w_val_nig, min_w_val_pbf,
1319 				total_bw,
1320 				ets_params->cos[cos_entry].params.bw_params.bw,
1321 				 port);
1322 		} else if (elink_cos_state_strict ==
1323 			ets_params->cos[cos_entry].state){
1324 			cos_sp_bitmap |= (1 << cos_entry);
1325 
1326 			elink_status = elink_ets_e3b0_sp_pri_to_cos_set(
1327 				params,
1328 				sp_pri_to_cos,
1329 				ets_params->cos[cos_entry].params.sp_params.pri,
1330 				cos_entry);
1331 
1332 		} else {
1333 			ELINK_DEBUG_P0(cb,
1334 			   "elink_ets_e3b0_config cos state not valid\n");
1335 			return ELINK_STATUS_ERROR;
1336 		}
1337 		if (elink_status != ELINK_STATUS_OK) {
1338 			ELINK_DEBUG_P0(cb,
1339 			   "elink_ets_e3b0_config set cos bw failed\n");
1340 			return elink_status;
1341 		}
1342 	}
1343 
1344 	/* Set SP register (which COS has higher priority) */
1345 	elink_status = elink_ets_e3b0_sp_set_pri_cli_reg(params,
1346 							 sp_pri_to_cos);
1347 
1348 	if (elink_status != ELINK_STATUS_OK) {
1349 		ELINK_DEBUG_P0(cb,
1350 		   "elink_ets_E3B0_config set_pri_cli_reg failed\n");
1351 		return elink_status;
1352 	}
1353 
1354 	/* Set client mapping of BW and strict */
1355 	elink_status = elink_ets_e3b0_cli_map(params, ets_params,
1356 					      cos_sp_bitmap,
1357 					      cos_bw_bitmap);
1358 
1359 	if (elink_status != ELINK_STATUS_OK) {
1360 		ELINK_DEBUG_P0(cb, "elink_ets_E3B0_config SP failed\n");
1361 		return elink_status;
1362 	}
1363 	return ELINK_STATUS_OK;
1364 }
elink_ets_bw_limit_common(const struct elink_params * params)1365 static void elink_ets_bw_limit_common(const struct elink_params *params)
1366 {
1367 	/* ETS disabled configuration */
1368 	struct elink_dev *cb = params->cb;
1369 	ELINK_DEBUG_P0(cb, "ETS enabled BW limit configuration\n");
1370 	/* Defines which entries (clients) are subjected to WFQ arbitration
1371 	 * COS0 0x8
1372 	 * COS1 0x10
1373 	 */
1374 	REG_WR(cb, NIG_REG_P0_TX_ARB_CLIENT_IS_SUBJECT2WFQ, 0x18);
1375 	/* Mapping between the ARB_CREDIT_WEIGHT registers and actual
1376 	 * client numbers (WEIGHT_0 does not actually have to represent
1377 	 * client 0)
1378 	 *    PRI4    |    PRI3    |    PRI2    |    PRI1    |    PRI0
1379 	 *  cos1-001     cos0-000     dbg1-100     dbg0-011     MCP-010
1380 	 */
1381 	REG_WR(cb, NIG_REG_P0_TX_ARB_CLIENT_CREDIT_MAP, 0x111A);
1382 
1383 	REG_WR(cb, NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_0,
1384 	       ELINK_ETS_BW_LIMIT_CREDIT_UPPER_BOUND);
1385 	REG_WR(cb, NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_1,
1386 	       ELINK_ETS_BW_LIMIT_CREDIT_UPPER_BOUND);
1387 
1388 	/* ETS mode enabled*/
1389 	REG_WR(cb, PBF_REG_ETS_ENABLED, 1);
1390 
1391 	/* Defines the number of consecutive slots for the strict priority */
1392 	REG_WR(cb, PBF_REG_NUM_STRICT_ARB_SLOTS, 0);
1393 	/* Bitmap of 5bits length. Each bit specifies whether the entry behaves
1394 	 * as strict.  Bits 0,1,2 - debug and management entries, 3 - COS0
1395 	 * entry, 4 - COS1 entry.
1396 	 * COS1 | COS0 | DEBUG21 | DEBUG0 | MGMT
1397 	 * bit4   bit3	  bit2     bit1	   bit0
1398 	 * MCP and debug are strict
1399 	 */
1400 	REG_WR(cb, NIG_REG_P0_TX_ARB_CLIENT_IS_STRICT, 0x7);
1401 
1402 	/* Upper bound that COS0_WEIGHT can reach in the WFQ arbiter.*/
1403 	REG_WR(cb, PBF_REG_COS0_UPPER_BOUND,
1404 	       ELINK_ETS_BW_LIMIT_CREDIT_UPPER_BOUND);
1405 	REG_WR(cb, PBF_REG_COS1_UPPER_BOUND,
1406 	       ELINK_ETS_BW_LIMIT_CREDIT_UPPER_BOUND);
1407 }
1408 
elink_ets_bw_limit(const struct elink_params * params,const u32 cos0_bw,const u32 cos1_bw)1409 void elink_ets_bw_limit(const struct elink_params *params, const u32 cos0_bw,
1410 			const u32 cos1_bw)
1411 {
1412 	/* ETS disabled configuration*/
1413 	struct elink_dev *cb = params->cb;
1414 	const u32 total_bw = cos0_bw + cos1_bw;
1415 	u32 cos0_credit_weight = 0;
1416 	u32 cos1_credit_weight = 0;
1417 
1418 	ELINK_DEBUG_P0(cb, "ETS enabled BW limit configuration\n");
1419 
1420 	if ((!total_bw) ||
1421 	    (!cos0_bw) ||
1422 	    (!cos1_bw)) {
1423 		ELINK_DEBUG_P0(cb, "Total BW can't be zero\n");
1424 		return;
1425 	}
1426 
1427 	cos0_credit_weight = (cos0_bw * ELINK_ETS_BW_LIMIT_CREDIT_WEIGHT)/
1428 		total_bw;
1429 	cos1_credit_weight = (cos1_bw * ELINK_ETS_BW_LIMIT_CREDIT_WEIGHT)/
1430 		total_bw;
1431 
1432 	elink_ets_bw_limit_common(params);
1433 
1434 	REG_WR(cb, NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_0, cos0_credit_weight);
1435 	REG_WR(cb, NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_1, cos1_credit_weight);
1436 
1437 	REG_WR(cb, PBF_REG_COS0_WEIGHT, cos0_credit_weight);
1438 	REG_WR(cb, PBF_REG_COS1_WEIGHT, cos1_credit_weight);
1439 }
1440 
elink_ets_strict(const struct elink_params * params,const u8 strict_cos)1441 elink_status_t elink_ets_strict(const struct elink_params *params, const u8 strict_cos)
1442 {
1443 	/* ETS disabled configuration*/
1444 	struct elink_dev *cb = params->cb;
1445 	u32 val	= 0;
1446 
1447 	ELINK_DEBUG_P0(cb, "ETS enabled strict configuration\n");
1448 	/* Bitmap of 5bits length. Each bit specifies whether the entry behaves
1449 	 * as strict.  Bits 0,1,2 - debug and management entries,
1450 	 * 3 - COS0 entry, 4 - COS1 entry.
1451 	 *  COS1 | COS0 | DEBUG21 | DEBUG0 | MGMT
1452 	 *  bit4   bit3	  bit2      bit1     bit0
1453 	 * MCP and debug are strict
1454 	 */
1455 	REG_WR(cb, NIG_REG_P0_TX_ARB_CLIENT_IS_STRICT, 0x1F);
1456 	/* For strict priority entries defines the number of consecutive slots
1457 	 * for the highest priority.
1458 	 */
1459 	REG_WR(cb, NIG_REG_P0_TX_ARB_NUM_STRICT_ARB_SLOTS, 0x100);
1460 	/* ETS mode disable */
1461 	REG_WR(cb, PBF_REG_ETS_ENABLED, 0);
1462 	/* Defines the number of consecutive slots for the strict priority */
1463 	REG_WR(cb, PBF_REG_NUM_STRICT_ARB_SLOTS, 0x100);
1464 
1465 	/* Defines the number of consecutive slots for the strict priority */
1466 	REG_WR(cb, PBF_REG_HIGH_PRIORITY_COS_NUM, strict_cos);
1467 
1468 	/* Mapping between entry  priority to client number (0,1,2 -debug and
1469 	 * management clients, 3 - COS0 client, 4 - COS client)(HIGHEST)
1470 	 * 3bits client num.
1471 	 *   PRI4    |    PRI3    |    PRI2    |    PRI1    |    PRI0
1472 	 * dbg0-010     dbg1-001     cos1-100     cos0-011     MCP-000
1473 	 * dbg0-010     dbg1-001     cos0-011     cos1-100     MCP-000
1474 	 */
1475 	val = (!strict_cos) ? 0x2318 : 0x22E0;
1476 	REG_WR(cb, NIG_REG_P0_TX_ARB_PRIORITY_CLIENT, val);
1477 
1478 	return ELINK_STATUS_OK;
1479 }
1480 #endif /* ELINK_ENHANCEMENTS */
1481 
1482 /******************************************************************/
1483 /*			PFC section				  */
1484 /******************************************************************/
1485 #ifndef EXCLUDE_NON_COMMON_INIT
1486 #ifndef EXCLUDE_WARPCORE
elink_update_pfc_xmac(struct elink_params * params,struct elink_vars * vars,u8 is_lb)1487 static void elink_update_pfc_xmac(struct elink_params *params,
1488 				  struct elink_vars *vars,
1489 				  u8 is_lb)
1490 {
1491 	struct elink_dev *cb = params->cb;
1492 	u32 xmac_base;
1493 	u32 pause_val, pfc0_val, pfc1_val;
1494 
1495 	/* XMAC base adrr */
1496 	xmac_base = (params->port) ? GRCBASE_XMAC1 : GRCBASE_XMAC0;
1497 
1498 	/* Initialize pause and pfc registers */
1499 	pause_val = 0x18000;
1500 	pfc0_val = 0xFFFF8000;
1501 	pfc1_val = 0x2;
1502 
1503 	/* No PFC support */
1504 	if (!(params->feature_config_flags &
1505 	      ELINK_FEATURE_CONFIG_PFC_ENABLED)) {
1506 
1507 		/* RX flow control - Process pause frame in receive direction
1508 		 */
1509 		if (vars->flow_ctrl & ELINK_FLOW_CTRL_RX)
1510 			pause_val |= XMAC_PAUSE_CTRL_REG_RX_PAUSE_EN;
1511 
1512 		/* TX flow control - Send pause packet when buffer is full */
1513 		if (vars->flow_ctrl & ELINK_FLOW_CTRL_TX)
1514 			pause_val |= XMAC_PAUSE_CTRL_REG_TX_PAUSE_EN;
1515 	} else {/* PFC support */
1516 		pfc1_val |= XMAC_PFC_CTRL_HI_REG_PFC_REFRESH_EN |
1517 			XMAC_PFC_CTRL_HI_REG_PFC_STATS_EN |
1518 			XMAC_PFC_CTRL_HI_REG_RX_PFC_EN |
1519 			XMAC_PFC_CTRL_HI_REG_TX_PFC_EN |
1520 			XMAC_PFC_CTRL_HI_REG_FORCE_PFC_XON;
1521 		/* Write pause and PFC registers */
1522 		REG_WR(cb, xmac_base + XMAC_REG_PAUSE_CTRL, pause_val);
1523 		REG_WR(cb, xmac_base + XMAC_REG_PFC_CTRL, pfc0_val);
1524 		REG_WR(cb, xmac_base + XMAC_REG_PFC_CTRL_HI, pfc1_val);
1525 		pfc1_val &= ~XMAC_PFC_CTRL_HI_REG_FORCE_PFC_XON;
1526 
1527 	}
1528 
1529 	/* Write pause and PFC registers */
1530 	REG_WR(cb, xmac_base + XMAC_REG_PAUSE_CTRL, pause_val);
1531 	REG_WR(cb, xmac_base + XMAC_REG_PFC_CTRL, pfc0_val);
1532 	REG_WR(cb, xmac_base + XMAC_REG_PFC_CTRL_HI, pfc1_val);
1533 
1534 
1535 	/* Set MAC address for source TX Pause/PFC frames */
1536 	REG_WR(cb, xmac_base + XMAC_REG_CTRL_SA_LO,
1537 	       ((params->mac_addr[2] << 24) |
1538 		(params->mac_addr[3] << 16) |
1539 		(params->mac_addr[4] << 8) |
1540 		(params->mac_addr[5])));
1541 	REG_WR(cb, xmac_base + XMAC_REG_CTRL_SA_HI,
1542 	       ((params->mac_addr[0] << 8) |
1543 		(params->mac_addr[1])));
1544 
1545 	USLEEP(cb, 30);
1546 }
1547 
1548 #endif // EXCLUDE_WARPCORE
1549 #endif // #ifndef EXCLUDE_NON_COMMON_INIT
1550 #ifdef ELINK_ENHANCEMENTS
1551 #ifndef BNX2X_UPSTREAM /* ! BNX2X_UPSTREAM */
elink_emac_get_pfc_stat(struct elink_params * params,u32 pfc_frames_sent[2],u32 pfc_frames_received[2])1552 static void elink_emac_get_pfc_stat(struct elink_params *params,
1553 				    u32 pfc_frames_sent[2],
1554 				    u32 pfc_frames_received[2])
1555 {
1556 	/* Read pfc statistic */
1557 	struct elink_dev *cb = params->cb;
1558 	u32 emac_base = params->port ? GRCBASE_EMAC1 : GRCBASE_EMAC0;
1559 	u32 val_xon = 0;
1560 	u32 val_xoff = 0;
1561 
1562 	ELINK_DEBUG_P0(cb, "pfc statistic read from EMAC\n");
1563 
1564 	/* PFC received frames */
1565 	val_xoff = REG_RD(cb, emac_base +
1566 				EMAC_REG_RX_PFC_STATS_XOFF_RCVD);
1567 	val_xoff &= EMAC_REG_RX_PFC_STATS_XOFF_RCVD_COUNT;
1568 	val_xon = REG_RD(cb, emac_base + EMAC_REG_RX_PFC_STATS_XON_RCVD);
1569 	val_xon &= EMAC_REG_RX_PFC_STATS_XON_RCVD_COUNT;
1570 
1571 	pfc_frames_received[0] = val_xon + val_xoff;
1572 
1573 	/* PFC received sent */
1574 	val_xoff = REG_RD(cb, emac_base +
1575 				EMAC_REG_RX_PFC_STATS_XOFF_SENT);
1576 	val_xoff &= EMAC_REG_RX_PFC_STATS_XOFF_SENT_COUNT;
1577 	val_xon = REG_RD(cb, emac_base + EMAC_REG_RX_PFC_STATS_XON_SENT);
1578 	val_xon &= EMAC_REG_RX_PFC_STATS_XON_SENT_COUNT;
1579 
1580 	pfc_frames_sent[0] = val_xon + val_xoff;
1581 }
1582 
1583 /* Read pfc statistic*/
elink_pfc_statistic(struct elink_params * params,struct elink_vars * vars,u32 pfc_frames_sent[2],u32 pfc_frames_received[2])1584 void elink_pfc_statistic(struct elink_params *params, struct elink_vars *vars,
1585 			 u32 pfc_frames_sent[2],
1586 			 u32 pfc_frames_received[2])
1587 {
1588 	/* Read pfc statistic */
1589 	struct elink_dev *cb = params->cb;
1590 
1591 	ELINK_DEBUG_P0(cb, "pfc statistic\n");
1592 
1593 	if (!vars->link_up)
1594 		return;
1595 
1596 	if (vars->mac_type == ELINK_MAC_TYPE_EMAC) {
1597 		ELINK_DEBUG_P0(cb, "About to read PFC stats from EMAC\n");
1598 		elink_emac_get_pfc_stat(params, pfc_frames_sent,
1599 					pfc_frames_received);
1600 	}
1601 }
1602 #endif /* ! BNX2X_UPSTREAM */
1603 #endif /* ELINK_ENHANCEMENTS */
1604 /******************************************************************/
1605 /*			MAC/PBF section				  */
1606 /******************************************************************/
elink_set_mdio_clk(struct elink_dev * cb,u32 chip_id,u32 emac_base)1607 static void elink_set_mdio_clk(struct elink_dev *cb, u32 chip_id,
1608 			       u32 emac_base)
1609 {
1610 	u32 new_mode, cur_mode;
1611 	u32 clc_cnt;
1612 	/* Set clause 45 mode, slow down the MDIO clock to 2.5MHz
1613 	 * (a value of 49==0x31) and make sure that the AUTO poll is off
1614 	 */
1615 	cur_mode = REG_RD(cb, emac_base + EMAC_REG_EMAC_MDIO_MODE);
1616 
1617 	if (ELINK_USES_WARPCORE(chip_id))
1618 		clc_cnt = 74L << EMAC_MDIO_MODE_CLOCK_CNT_BITSHIFT;
1619 	else
1620 		clc_cnt = 49L << EMAC_MDIO_MODE_CLOCK_CNT_BITSHIFT;
1621 
1622 	if (((cur_mode & EMAC_MDIO_MODE_CLOCK_CNT) == clc_cnt) &&
1623 	    (cur_mode & (EMAC_MDIO_MODE_CLAUSE_45)))
1624 		return;
1625 
1626 	new_mode = cur_mode &
1627 		~(EMAC_MDIO_MODE_AUTO_POLL | EMAC_MDIO_MODE_CLOCK_CNT);
1628 	new_mode |= clc_cnt;
1629 	new_mode |= (EMAC_MDIO_MODE_CLAUSE_45);
1630 
1631 	ELINK_DEBUG_P2(cb, "Changing emac_mode from 0x%x to 0x%x\n",
1632 	   cur_mode, new_mode);
1633 	REG_WR(cb, emac_base + EMAC_REG_EMAC_MDIO_MODE, new_mode);
1634 	USLEEP(cb, 40);
1635 }
1636 
1637 #ifndef EXCLUDE_WARPCORE
elink_is_4_port_mode(struct elink_dev * cb)1638 static u8 elink_is_4_port_mode(struct elink_dev *cb)
1639 {
1640 	u32 port4mode_ovwr_val;
1641 	/* Check 4-port override enabled */
1642 	port4mode_ovwr_val = REG_RD(cb, MISC_REG_PORT4MODE_EN_OVWR);
1643 	if (port4mode_ovwr_val & (1<<0)) {
1644 		/* Return 4-port mode override value */
1645 		return ((port4mode_ovwr_val & (1<<1)) == (1<<1));
1646 	}
1647 	/* Return 4-port mode from input pin */
1648 	return (u8)REG_RD(cb, MISC_REG_PORT4MODE_EN);
1649 }
1650 #endif
1651 
1652 #ifndef EXCLUDE_NON_COMMON_INIT
elink_set_mdio_emac_per_phy(struct elink_dev * cb,struct elink_params * params)1653 static void elink_set_mdio_emac_per_phy(struct elink_dev *cb,
1654 					struct elink_params *params)
1655 {
1656 	u8 phy_index;
1657 
1658 	/* Set mdio clock per phy */
1659 	for (phy_index = ELINK_INT_PHY; phy_index < params->num_phys;
1660 	      phy_index++)
1661 		elink_set_mdio_clk(cb, params->chip_id,
1662 				   params->phy[phy_index].mdio_ctrl);
1663 }
1664 
elink_emac_init(struct elink_params * params,struct elink_vars * vars)1665 static void elink_emac_init(struct elink_params *params,
1666 			    struct elink_vars *vars)
1667 {
1668 	/* reset and unreset the emac core */
1669 	struct elink_dev *cb = params->cb;
1670 	u8 port = params->port;
1671 	u32 emac_base = port ? GRCBASE_EMAC1 : GRCBASE_EMAC0;
1672 	u32 val;
1673 	u16 timeout;
1674 
1675 	REG_WR(cb, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR,
1676 	       (MISC_REGISTERS_RESET_REG_2_RST_EMAC0_HARD_CORE << port));
1677 	USLEEP(cb, 5);
1678 	REG_WR(cb, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_SET,
1679 	       (MISC_REGISTERS_RESET_REG_2_RST_EMAC0_HARD_CORE << port));
1680 
1681 	/* init emac - use read-modify-write */
1682 	/* self clear reset */
1683 	val = REG_RD(cb, emac_base + EMAC_REG_EMAC_MODE);
1684 	EMAC_WR(cb, EMAC_REG_EMAC_MODE, (val | EMAC_MODE_RESET));
1685 
1686 	timeout = 200;
1687 	do {
1688 		val = REG_RD(cb, emac_base + EMAC_REG_EMAC_MODE);
1689 		ELINK_DEBUG_P1(cb, "EMAC reset reg is %u\n", val);
1690 		if (!timeout) {
1691 			ELINK_DEBUG_P0(cb, "EMAC timeout!\n");
1692 			return;
1693 		}
1694 		timeout--;
1695 	} while (val & EMAC_MODE_RESET);
1696 
1697 	elink_set_mdio_emac_per_phy(cb, params);
1698 	/* Set mac address */
1699 	val = ((params->mac_addr[0] << 8) |
1700 		params->mac_addr[1]);
1701 	EMAC_WR(cb, EMAC_REG_EMAC_MAC_MATCH, val);
1702 
1703 	val = ((params->mac_addr[2] << 24) |
1704 	       (params->mac_addr[3] << 16) |
1705 	       (params->mac_addr[4] << 8) |
1706 		params->mac_addr[5]);
1707 	EMAC_WR(cb, EMAC_REG_EMAC_MAC_MATCH + 4, val);
1708 }
1709 
1710 #ifndef EXCLUDE_WARPCORE
elink_set_xumac_nig(struct elink_params * params,u16 tx_pause_en,u8 enable)1711 static void elink_set_xumac_nig(struct elink_params *params,
1712 				u16 tx_pause_en,
1713 				u8 enable)
1714 {
1715 	struct elink_dev *cb = params->cb;
1716 
1717 	REG_WR(cb, params->port ? NIG_REG_P1_MAC_IN_EN : NIG_REG_P0_MAC_IN_EN,
1718 	       enable);
1719 	REG_WR(cb, params->port ? NIG_REG_P1_MAC_OUT_EN : NIG_REG_P0_MAC_OUT_EN,
1720 	       enable);
1721 	REG_WR(cb, params->port ? NIG_REG_P1_MAC_PAUSE_OUT_EN :
1722 	       NIG_REG_P0_MAC_PAUSE_OUT_EN, tx_pause_en);
1723 }
1724 
elink_set_umac_rxtx(struct elink_params * params,u8 en)1725 static void elink_set_umac_rxtx(struct elink_params *params, u8 en)
1726 {
1727 	u32 umac_base = params->port ? GRCBASE_UMAC1 : GRCBASE_UMAC0;
1728 	u32 val;
1729 	struct elink_dev *cb = params->cb;
1730 	if (!(REG_RD(cb, MISC_REG_RESET_REG_2) &
1731 		   (MISC_REGISTERS_RESET_REG_2_UMAC0 << params->port)))
1732 		return;
1733 	val = REG_RD(cb, umac_base + UMAC_REG_COMMAND_CONFIG);
1734 	if (en)
1735 		val |= (UMAC_COMMAND_CONFIG_REG_TX_ENA |
1736 			UMAC_COMMAND_CONFIG_REG_RX_ENA);
1737 	else
1738 		val &= ~(UMAC_COMMAND_CONFIG_REG_TX_ENA |
1739 			 UMAC_COMMAND_CONFIG_REG_RX_ENA);
1740 	/* Disable RX and TX */
1741 	REG_WR(cb, umac_base + UMAC_REG_COMMAND_CONFIG, val);
1742 }
1743 
elink_umac_enable(struct elink_params * params,struct elink_vars * vars,u8 lb)1744 static void elink_umac_enable(struct elink_params *params,
1745 			    struct elink_vars *vars, u8 lb)
1746 {
1747 	u32 val;
1748 	u32 umac_base = params->port ? GRCBASE_UMAC1 : GRCBASE_UMAC0;
1749 	struct elink_dev *cb = params->cb;
1750 	/* Reset UMAC */
1751 	REG_WR(cb, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR,
1752 	       (MISC_REGISTERS_RESET_REG_2_UMAC0 << params->port));
1753 	MSLEEP(cb, 1);
1754 
1755 	REG_WR(cb, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_SET,
1756 	       (MISC_REGISTERS_RESET_REG_2_UMAC0 << params->port));
1757 
1758 	ELINK_DEBUG_P0(cb, "enabling UMAC\n");
1759 
1760 	/* This register opens the gate for the UMAC despite its name */
1761 	REG_WR(cb, NIG_REG_EGRESS_EMAC0_PORT + params->port*4, 1);
1762 
1763 	val = UMAC_COMMAND_CONFIG_REG_PROMIS_EN |
1764 		UMAC_COMMAND_CONFIG_REG_PAD_EN |
1765 		UMAC_COMMAND_CONFIG_REG_SW_RESET |
1766 		UMAC_COMMAND_CONFIG_REG_NO_LGTH_CHECK;
1767 	switch (vars->line_speed) {
1768 	case ELINK_SPEED_10:
1769 		val |= (0<<2);
1770 		break;
1771 	case ELINK_SPEED_100:
1772 		val |= (1<<2);
1773 		break;
1774 	case ELINK_SPEED_1000:
1775 		val |= (2<<2);
1776 		break;
1777 	case ELINK_SPEED_2500:
1778 		val |= (3<<2);
1779 		break;
1780 	default:
1781 		ELINK_DEBUG_P1(cb, "Invalid speed for UMAC %d\n",
1782 			       vars->line_speed);
1783 		break;
1784 	}
1785 	if (!(vars->flow_ctrl & ELINK_FLOW_CTRL_TX))
1786 		val |= UMAC_COMMAND_CONFIG_REG_IGNORE_TX_PAUSE;
1787 
1788 	if (!(vars->flow_ctrl & ELINK_FLOW_CTRL_RX))
1789 		val |= UMAC_COMMAND_CONFIG_REG_PAUSE_IGNORE;
1790 
1791 	if (vars->duplex == DUPLEX_HALF)
1792 		val |= UMAC_COMMAND_CONFIG_REG_HD_ENA;
1793 
1794 	REG_WR(cb, umac_base + UMAC_REG_COMMAND_CONFIG, val);
1795 	USLEEP(cb, 50);
1796 
1797 	/* Configure UMAC for EEE */
1798 	if (vars->eee_status & SHMEM_EEE_ADV_STATUS_MASK) {
1799 		ELINK_DEBUG_P0(cb, "configured UMAC for EEE\n");
1800 		REG_WR(cb, umac_base + UMAC_REG_UMAC_EEE_CTRL,
1801 		       UMAC_UMAC_EEE_CTRL_REG_EEE_EN);
1802 		REG_WR(cb, umac_base + UMAC_REG_EEE_WAKE_TIMER, 0x11);
1803 	} else {
1804 		REG_WR(cb, umac_base + UMAC_REG_UMAC_EEE_CTRL, 0x0);
1805 	}
1806 
1807 	/* Set MAC address for source TX Pause/PFC frames (under SW reset) */
1808 	REG_WR(cb, umac_base + UMAC_REG_MAC_ADDR0,
1809 	       ((params->mac_addr[2] << 24) |
1810 		(params->mac_addr[3] << 16) |
1811 		(params->mac_addr[4] << 8) |
1812 		(params->mac_addr[5])));
1813 	REG_WR(cb, umac_base + UMAC_REG_MAC_ADDR1,
1814 	       ((params->mac_addr[0] << 8) |
1815 		(params->mac_addr[1])));
1816 
1817 	/* Enable RX and TX */
1818 	val &= ~UMAC_COMMAND_CONFIG_REG_PAD_EN;
1819 	val |= UMAC_COMMAND_CONFIG_REG_TX_ENA |
1820 		UMAC_COMMAND_CONFIG_REG_RX_ENA;
1821 	REG_WR(cb, umac_base + UMAC_REG_COMMAND_CONFIG, val);
1822 	USLEEP(cb, 50);
1823 
1824 	/* Remove SW Reset */
1825 	val &= ~UMAC_COMMAND_CONFIG_REG_SW_RESET;
1826 
1827 	/* Check loopback mode */
1828 	if (lb)
1829 		val |= UMAC_COMMAND_CONFIG_REG_LOOP_ENA;
1830 	REG_WR(cb, umac_base + UMAC_REG_COMMAND_CONFIG, val);
1831 
1832 	/* Maximum Frame Length (RW). Defines a 14-Bit maximum frame
1833 	 * length used by the MAC receive logic to check frames.
1834 	 */
1835 	REG_WR(cb, umac_base + UMAC_REG_MAXFR, 0x2710);
1836 	elink_set_xumac_nig(params,
1837 			    ((vars->flow_ctrl & ELINK_FLOW_CTRL_TX) != 0), 1);
1838 	vars->mac_type = ELINK_MAC_TYPE_UMAC;
1839 
1840 }
1841 
1842 /* Define the XMAC mode */
elink_xmac_init(struct elink_params * params,u32 max_speed)1843 static void elink_xmac_init(struct elink_params *params, u32 max_speed)
1844 {
1845 	struct elink_dev *cb = params->cb;
1846 	u32 is_port4mode = elink_is_4_port_mode(cb);
1847 
1848 	/* In 4-port mode, need to set the mode only once, so if XMAC is
1849 	 * already out of reset, it means the mode has already been set,
1850 	 * and it must not* reset the XMAC again, since it controls both
1851 	 * ports of the path
1852 	 */
1853 
1854 	if (((CHIP_NUM(params->chip_id) == CHIP_NUM_57840_4_10) ||
1855 	     (CHIP_NUM(params->chip_id) == CHIP_NUM_57840_2_20) ||
1856 	     (CHIP_NUM(params->chip_id) == CHIP_NUM_57840_OBSOLETE)) &&
1857 	    is_port4mode &&
1858 	    (REG_RD(cb, MISC_REG_RESET_REG_2) &
1859 	     MISC_REGISTERS_RESET_REG_2_XMAC)) {
1860 		ELINK_DEBUG_P0(cb,
1861 		   "XMAC already out of reset in 4-port mode\n");
1862 		return;
1863 	}
1864 
1865 	/* Hard reset */
1866 	REG_WR(cb, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR,
1867 	       MISC_REGISTERS_RESET_REG_2_XMAC);
1868 	MSLEEP(cb, 1);
1869 
1870 	REG_WR(cb, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_SET,
1871 	       MISC_REGISTERS_RESET_REG_2_XMAC);
1872 	if (is_port4mode) {
1873 		ELINK_DEBUG_P0(cb, "Init XMAC to 2 ports x 10G per path\n");
1874 
1875 		/* Set the number of ports on the system side to up to 2 */
1876 		REG_WR(cb, MISC_REG_XMAC_CORE_PORT_MODE, 1);
1877 
1878 		/* Set the number of ports on the Warp Core to 10G */
1879 		REG_WR(cb, MISC_REG_XMAC_PHY_PORT_MODE, 3);
1880 	} else {
1881 		/* Set the number of ports on the system side to 1 */
1882 		REG_WR(cb, MISC_REG_XMAC_CORE_PORT_MODE, 0);
1883 		if (max_speed == ELINK_SPEED_10000) {
1884 			ELINK_DEBUG_P0(cb,
1885 			   "Init XMAC to 10G x 1 port per path\n");
1886 			/* Set the number of ports on the Warp Core to 10G */
1887 			REG_WR(cb, MISC_REG_XMAC_PHY_PORT_MODE, 3);
1888 		} else {
1889 			ELINK_DEBUG_P0(cb,
1890 			   "Init XMAC to 20G x 2 ports per path\n");
1891 			/* Set the number of ports on the Warp Core to 20G */
1892 			REG_WR(cb, MISC_REG_XMAC_PHY_PORT_MODE, 1);
1893 		}
1894 	}
1895 	/* Soft reset */
1896 	REG_WR(cb, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR,
1897 	       MISC_REGISTERS_RESET_REG_2_XMAC_SOFT);
1898 	MSLEEP(cb, 1);
1899 
1900 	REG_WR(cb, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_SET,
1901 	       MISC_REGISTERS_RESET_REG_2_XMAC_SOFT);
1902 
1903 }
1904 
elink_set_xmac_rxtx(struct elink_params * params,u8 en)1905 static void elink_set_xmac_rxtx(struct elink_params *params, u8 en)
1906 {
1907 	u8 port = params->port;
1908 	struct elink_dev *cb = params->cb;
1909 	u32 pfc_ctrl, xmac_base = (port) ? GRCBASE_XMAC1 : GRCBASE_XMAC0;
1910 	u32 val;
1911 
1912 	if (REG_RD(cb, MISC_REG_RESET_REG_2) &
1913 	    MISC_REGISTERS_RESET_REG_2_XMAC) {
1914 		/* Send an indication to change the state in the NIG back to XON
1915 		 * Clearing this bit enables the next set of this bit to get
1916 		 * rising edge
1917 		 */
1918 		pfc_ctrl = REG_RD(cb, xmac_base + XMAC_REG_PFC_CTRL_HI);
1919 		REG_WR(cb, xmac_base + XMAC_REG_PFC_CTRL_HI,
1920 		       (pfc_ctrl & ~(1<<1)));
1921 		REG_WR(cb, xmac_base + XMAC_REG_PFC_CTRL_HI,
1922 		       (pfc_ctrl | (1<<1)));
1923 		ELINK_DEBUG_P1(cb, "Disable XMAC on port %x\n", port);
1924 		val = REG_RD(cb, xmac_base + XMAC_REG_CTRL);
1925 		if (en)
1926 			val |= (XMAC_CTRL_REG_TX_EN | XMAC_CTRL_REG_RX_EN);
1927 		else
1928 			val &= ~(XMAC_CTRL_REG_TX_EN | XMAC_CTRL_REG_RX_EN);
1929 		REG_WR(cb, xmac_base + XMAC_REG_CTRL, val);
1930 	}
1931 }
1932 
elink_xmac_enable(struct elink_params * params,struct elink_vars * vars,u8 lb)1933 static elink_status_t elink_xmac_enable(struct elink_params *params,
1934 			     struct elink_vars *vars, u8 lb)
1935 {
1936 	u32 val, xmac_base;
1937 	struct elink_dev *cb = params->cb;
1938 	ELINK_DEBUG_P0(cb, "enabling XMAC\n");
1939 
1940 	xmac_base = (params->port) ? GRCBASE_XMAC1 : GRCBASE_XMAC0;
1941 
1942 	elink_xmac_init(params, vars->line_speed);
1943 
1944 	/* This register determines on which events the MAC will assert
1945 	 * error on the i/f to the NIG along w/ EOP.
1946 	 */
1947 
1948 	/* This register tells the NIG whether to send traffic to UMAC
1949 	 * or XMAC
1950 	 */
1951 	REG_WR(cb, NIG_REG_EGRESS_EMAC0_PORT + params->port*4, 0);
1952 
1953 	/* When XMAC is in XLGMII mode, disable sending idles for fault
1954 	 * detection.
1955 	 */
1956 	if (!(params->phy[ELINK_INT_PHY].flags & ELINK_FLAGS_TX_ERROR_CHECK)) {
1957 		REG_WR(cb, xmac_base + XMAC_REG_RX_LSS_CTRL,
1958 		       (XMAC_RX_LSS_CTRL_REG_LOCAL_FAULT_DISABLE |
1959 			XMAC_RX_LSS_CTRL_REG_REMOTE_FAULT_DISABLE));
1960 		REG_WR(cb, xmac_base + XMAC_REG_CLEAR_RX_LSS_STATUS, 0);
1961 		REG_WR(cb, xmac_base + XMAC_REG_CLEAR_RX_LSS_STATUS,
1962 		       XMAC_CLEAR_RX_LSS_STATUS_REG_CLEAR_LOCAL_FAULT_STATUS |
1963 		       XMAC_CLEAR_RX_LSS_STATUS_REG_CLEAR_REMOTE_FAULT_STATUS);
1964 	}
1965 	/* Set Max packet size */
1966 	REG_WR(cb, xmac_base + XMAC_REG_RX_MAX_SIZE, 0x2710);
1967 
1968 	/* CRC append for Tx packets */
1969 	REG_WR(cb, xmac_base + XMAC_REG_TX_CTRL, 0xC800);
1970 
1971 	/* update PFC */
1972 	elink_update_pfc_xmac(params, vars, 0);
1973 
1974 	if (vars->eee_status & SHMEM_EEE_ADV_STATUS_MASK) {
1975 		ELINK_DEBUG_P0(cb, "Setting XMAC for EEE\n");
1976 		REG_WR(cb, xmac_base + XMAC_REG_EEE_TIMERS_HI, 0x1380008);
1977 		REG_WR(cb, xmac_base + XMAC_REG_EEE_CTRL, 0x1);
1978 	} else {
1979 		REG_WR(cb, xmac_base + XMAC_REG_EEE_CTRL, 0x0);
1980 	}
1981 
1982 	/* Enable TX and RX */
1983 	val = XMAC_CTRL_REG_TX_EN | XMAC_CTRL_REG_RX_EN;
1984 
1985 	/* Set MAC in XLGMII mode for dual-mode */
1986 	if ((vars->line_speed == ELINK_SPEED_20000) &&
1987 	    (params->phy[ELINK_INT_PHY].supported &
1988 	     ELINK_SUPPORTED_20000baseKR2_Full))
1989 		val |= XMAC_CTRL_REG_XLGMII_ALIGN_ENB;
1990 
1991 	/* Check loopback mode */
1992 	if (lb)
1993 		val |= XMAC_CTRL_REG_LINE_LOCAL_LPBK;
1994 	REG_WR(cb, xmac_base + XMAC_REG_CTRL, val);
1995 	elink_set_xumac_nig(params,
1996 			    ((vars->flow_ctrl & ELINK_FLOW_CTRL_TX) != 0), 1);
1997 
1998 	vars->mac_type = ELINK_MAC_TYPE_XMAC;
1999 
2000 	return ELINK_STATUS_OK;
2001 }
2002 #endif // EXCLUDE_WARPCORE
2003 
2004 #ifndef EXCLUDE_EMAC
elink_emac_enable(struct elink_params * params,struct elink_vars * vars,u8 lb)2005 static elink_status_t elink_emac_enable(struct elink_params *params,
2006 			     struct elink_vars *vars, u8 lb)
2007 {
2008 	struct elink_dev *cb = params->cb;
2009 	u8 port = params->port;
2010 	u32 emac_base = port ? GRCBASE_EMAC1 : GRCBASE_EMAC0;
2011 	u32 val;
2012 
2013 	ELINK_DEBUG_P0(cb, "enabling EMAC\n");
2014 
2015 	/* Disable BMAC */
2016 	REG_WR(cb, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR,
2017 	       (MISC_REGISTERS_RESET_REG_2_RST_BMAC0 << port));
2018 
2019 	/* enable emac and not bmac */
2020 	REG_WR(cb, NIG_REG_EGRESS_EMAC0_PORT + port*4, 1);
2021 
2022 #ifdef ELINK_INCLUDE_EMUL
2023 	/* for paladium */
2024 	if (CHIP_REV_IS_EMUL(params->chip_id)) {
2025 		/* Use lane 1 (of lanes 0-3) */
2026 		REG_WR(cb, NIG_REG_XGXS_LANE_SEL_P0 + port*4, 1);
2027 		REG_WR(cb, NIG_REG_XGXS_SERDES0_MODE_SEL + port*4, 1);
2028 	}
2029 	/* for fpga */
2030 	else
2031 #endif
2032 #ifdef ELINK_INCLUDE_FPGA
2033 	if (CHIP_REV_IS_FPGA(params->chip_id)) {
2034 		/* Use lane 1 (of lanes 0-3) */
2035 		ELINK_DEBUG_P0(cb, "elink_emac_enable: Setting FPGA\n");
2036 
2037 		REG_WR(cb, NIG_REG_XGXS_LANE_SEL_P0 + port*4, 1);
2038 		REG_WR(cb, NIG_REG_XGXS_SERDES0_MODE_SEL + port*4, 0);
2039 	} else
2040 #endif
2041 	/* ASIC */
2042 	if (vars->phy_flags & PHY_XGXS_FLAG) {
2043 		u32 ser_lane = ((params->lane_config &
2044 				 PORT_HW_CFG_LANE_SWAP_CFG_MASTER_MASK) >>
2045 				PORT_HW_CFG_LANE_SWAP_CFG_MASTER_SHIFT);
2046 
2047 		ELINK_DEBUG_P0(cb, "XGXS\n");
2048 		/* select the master lanes (out of 0-3) */
2049 		REG_WR(cb, NIG_REG_XGXS_LANE_SEL_P0 + port*4, ser_lane);
2050 		/* select XGXS */
2051 		REG_WR(cb, NIG_REG_XGXS_SERDES0_MODE_SEL + port*4, 1);
2052 
2053 	} else { /* SerDes */
2054 		ELINK_DEBUG_P0(cb, "SerDes\n");
2055 		/* select SerDes */
2056 		REG_WR(cb, NIG_REG_XGXS_SERDES0_MODE_SEL + port*4, 0);
2057 	}
2058 
2059 	elink_bits_en(cb, emac_base + EMAC_REG_EMAC_RX_MODE,
2060 		      EMAC_RX_MODE_RESET);
2061 	elink_bits_en(cb, emac_base + EMAC_REG_EMAC_TX_MODE,
2062 		      EMAC_TX_MODE_RESET);
2063 
2064 #if defined(ELINK_INCLUDE_EMUL) || defined(ELINK_INCLUDE_FPGA)
2065 	if (CHIP_REV_IS_SLOW(params->chip_id)) {
2066 		/* config GMII mode */
2067 		val = REG_RD(cb, emac_base + EMAC_REG_EMAC_MODE);
2068 		EMAC_WR(cb, EMAC_REG_EMAC_MODE, (val | EMAC_MODE_PORT_GMII));
2069 	} else { /* ASIC */
2070 #endif /* defined(ELINK_INCLUDE_EMUL) || defined(ELINK_INCLUDE_FPGA)*/
2071 		/* pause enable/disable */
2072 		elink_bits_dis(cb, emac_base + EMAC_REG_EMAC_RX_MODE,
2073 			       EMAC_RX_MODE_FLOW_EN);
2074 
2075 		elink_bits_dis(cb,  emac_base + EMAC_REG_EMAC_TX_MODE,
2076 			       (EMAC_TX_MODE_EXT_PAUSE_EN |
2077 				EMAC_TX_MODE_FLOW_EN));
2078 		if (!(params->feature_config_flags &
2079 		      ELINK_FEATURE_CONFIG_PFC_ENABLED)) {
2080 			if (vars->flow_ctrl & ELINK_FLOW_CTRL_RX)
2081 				elink_bits_en(cb, emac_base +
2082 					      EMAC_REG_EMAC_RX_MODE,
2083 					      EMAC_RX_MODE_FLOW_EN);
2084 
2085 			if (vars->flow_ctrl & ELINK_FLOW_CTRL_TX)
2086 				elink_bits_en(cb, emac_base +
2087 					      EMAC_REG_EMAC_TX_MODE,
2088 					      (EMAC_TX_MODE_EXT_PAUSE_EN |
2089 					       EMAC_TX_MODE_FLOW_EN));
2090 		} else
2091 			elink_bits_en(cb, emac_base + EMAC_REG_EMAC_TX_MODE,
2092 				      EMAC_TX_MODE_FLOW_EN);
2093 #if defined(ELINK_INCLUDE_EMUL) || defined(ELINK_INCLUDE_FPGA)
2094 	}
2095 #endif /* defined(ELINK_INCLUDE_EMUL) || defined(ELINK_INCLUDE_FPGA) */
2096 
2097 	/* KEEP_VLAN_TAG, promiscuous */
2098 	val = REG_RD(cb, emac_base + EMAC_REG_EMAC_RX_MODE);
2099 	val |= EMAC_RX_MODE_KEEP_VLAN_TAG | EMAC_RX_MODE_PROMISCUOUS;
2100 
2101 	/* Setting this bit causes MAC control frames (except for pause
2102 	 * frames) to be passed on for processing. This setting has no
2103 	 * affect on the operation of the pause frames. This bit effects
2104 	 * all packets regardless of RX Parser packet sorting logic.
2105 	 * Turn the PFC off to make sure we are in Xon state before
2106 	 * enabling it.
2107 	 */
2108 	EMAC_WR(cb, EMAC_REG_RX_PFC_MODE, 0);
2109 	if (params->feature_config_flags & ELINK_FEATURE_CONFIG_PFC_ENABLED) {
2110 		ELINK_DEBUG_P0(cb, "PFC is enabled\n");
2111 		/* Enable PFC again */
2112 		EMAC_WR(cb, EMAC_REG_RX_PFC_MODE,
2113 			EMAC_REG_RX_PFC_MODE_RX_EN |
2114 			EMAC_REG_RX_PFC_MODE_TX_EN |
2115 			EMAC_REG_RX_PFC_MODE_PRIORITIES);
2116 
2117 		EMAC_WR(cb, EMAC_REG_RX_PFC_PARAM,
2118 			((0x0101 <<
2119 			  EMAC_REG_RX_PFC_PARAM_OPCODE_BITSHIFT) |
2120 			 (0x00ff <<
2121 			  EMAC_REG_RX_PFC_PARAM_PRIORITY_EN_BITSHIFT)));
2122 		val |= EMAC_RX_MODE_KEEP_MAC_CONTROL;
2123 	}
2124 	EMAC_WR(cb, EMAC_REG_EMAC_RX_MODE, val);
2125 
2126 	/* Set Loopback */
2127 	val = REG_RD(cb, emac_base + EMAC_REG_EMAC_MODE);
2128 	if (lb)
2129 		val |= 0x810;
2130 	else
2131 		val &= ~0x810;
2132 	EMAC_WR(cb, EMAC_REG_EMAC_MODE, val);
2133 
2134 	/* Enable emac */
2135 	REG_WR(cb, NIG_REG_NIG_EMAC0_EN + port*4, 1);
2136 
2137 #ifndef ELINK_AUX_POWER
2138 	/* Enable emac for jumbo packets */
2139 	EMAC_WR(cb, EMAC_REG_EMAC_RX_MTU_SIZE,
2140 		(EMAC_RX_MTU_SIZE_JUMBO_ENA |
2141 		 (ELINK_ETH_MAX_JUMBO_PACKET_SIZE + ELINK_ETH_OVREHEAD)));
2142 #endif
2143 
2144 	/* Strip CRC */
2145 	REG_WR(cb, NIG_REG_NIG_INGRESS_EMAC0_NO_CRC + port*4, 0x1);
2146 
2147 	/* Disable the NIG in/out to the bmac */
2148 	REG_WR(cb, NIG_REG_BMAC0_IN_EN + port*4, 0x0);
2149 	REG_WR(cb, NIG_REG_BMAC0_PAUSE_OUT_EN + port*4, 0x0);
2150 	REG_WR(cb, NIG_REG_BMAC0_OUT_EN + port*4, 0x0);
2151 
2152 	/* Enable the NIG in/out to the emac */
2153 	REG_WR(cb, NIG_REG_EMAC0_IN_EN + port*4, 0x1);
2154 	val = 0;
2155 	if ((params->feature_config_flags &
2156 	      ELINK_FEATURE_CONFIG_PFC_ENABLED) ||
2157 	    (vars->flow_ctrl & ELINK_FLOW_CTRL_TX))
2158 		val = 1;
2159 
2160 	REG_WR(cb, NIG_REG_EMAC0_PAUSE_OUT_EN + port*4, val);
2161 	REG_WR(cb, NIG_REG_EGRESS_EMAC0_OUT_EN + port*4, 0x1);
2162 
2163 #ifdef ELINK_INCLUDE_EMUL
2164 	if (CHIP_REV_IS_EMUL(params->chip_id)) {
2165 		/* Take the BigMac out of reset */
2166 		REG_WR(cb, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_SET,
2167 		       (MISC_REGISTERS_RESET_REG_2_RST_BMAC0 << port));
2168 
2169 		/* Enable access for bmac registers */
2170 		REG_WR(cb, NIG_REG_BMAC0_REGS_OUT_EN + port*4, 0x1);
2171 	} else
2172 #endif /* ELINK_INCLUDE_EMUL */
2173 	REG_WR(cb, NIG_REG_BMAC0_REGS_OUT_EN + port*4, 0x0);
2174 
2175 	vars->mac_type = ELINK_MAC_TYPE_EMAC;
2176 	return ELINK_STATUS_OK;
2177 }
2178 
2179 #endif //EXCLUDE_EMAC
2180 #ifndef EXCLUDE_BMAC1
elink_update_pfc_bmac1(struct elink_params * params,struct elink_vars * vars)2181 static void elink_update_pfc_bmac1(struct elink_params *params,
2182 				   struct elink_vars *vars)
2183 {
2184 	u32 wb_data[2];
2185 	struct elink_dev *cb = params->cb;
2186 	u32 bmac_addr =  params->port ? NIG_REG_INGRESS_BMAC1_MEM :
2187 		NIG_REG_INGRESS_BMAC0_MEM;
2188 
2189 	u32 val = 0x14;
2190 	if ((!(params->feature_config_flags &
2191 	      ELINK_FEATURE_CONFIG_PFC_ENABLED)) &&
2192 		(vars->flow_ctrl & ELINK_FLOW_CTRL_RX))
2193 		/* Enable BigMAC to react on received Pause packets */
2194 		val |= (1<<5);
2195 	wb_data[0] = val;
2196 	wb_data[1] = 0;
2197 	REG_WR_DMAE(cb, bmac_addr + BIGMAC_REGISTER_RX_CONTROL, wb_data, 2);
2198 
2199 	/* TX control */
2200 	val = 0xc0;
2201 	if (!(params->feature_config_flags &
2202 	      ELINK_FEATURE_CONFIG_PFC_ENABLED) &&
2203 		(vars->flow_ctrl & ELINK_FLOW_CTRL_TX))
2204 		val |= 0x800000;
2205 	wb_data[0] = val;
2206 	wb_data[1] = 0;
2207 	REG_WR_DMAE(cb, bmac_addr + BIGMAC_REGISTER_TX_CONTROL, wb_data, 2);
2208 }
2209 #endif // EXCLUDE_BMAC1
2210 
2211 #ifndef EXCLUDE_BMAC2
elink_update_pfc_bmac2(struct elink_params * params,struct elink_vars * vars,u8 is_lb)2212 static void elink_update_pfc_bmac2(struct elink_params *params,
2213 				   struct elink_vars *vars,
2214 				   u8 is_lb)
2215 {
2216 	/* Set rx control: Strip CRC and enable BigMAC to relay
2217 	 * control packets to the system as well
2218 	 */
2219 	u32 wb_data[2];
2220 	struct elink_dev *cb = params->cb;
2221 	u32 bmac_addr = params->port ? NIG_REG_INGRESS_BMAC1_MEM :
2222 		NIG_REG_INGRESS_BMAC0_MEM;
2223 	u32 val = 0x14;
2224 
2225 	if ((!(params->feature_config_flags &
2226 	      ELINK_FEATURE_CONFIG_PFC_ENABLED)) &&
2227 		(vars->flow_ctrl & ELINK_FLOW_CTRL_RX))
2228 		/* Enable BigMAC to react on received Pause packets */
2229 		val |= (1<<5);
2230 	wb_data[0] = val;
2231 	wb_data[1] = 0;
2232 	REG_WR_DMAE(cb, bmac_addr + BIGMAC2_REGISTER_RX_CONTROL, wb_data, 2);
2233 	USLEEP(cb, 30);
2234 
2235 	/* Tx control */
2236 	val = 0xc0;
2237 	if (!(params->feature_config_flags &
2238 				ELINK_FEATURE_CONFIG_PFC_ENABLED) &&
2239 	    (vars->flow_ctrl & ELINK_FLOW_CTRL_TX))
2240 		val |= 0x800000;
2241 	wb_data[0] = val;
2242 	wb_data[1] = 0;
2243 	REG_WR_DMAE(cb, bmac_addr + BIGMAC2_REGISTER_TX_CONTROL, wb_data, 2);
2244 
2245 	if (params->feature_config_flags & ELINK_FEATURE_CONFIG_PFC_ENABLED) {
2246 		ELINK_DEBUG_P0(cb, "PFC is enabled\n");
2247 		/* Enable PFC RX & TX & STATS and set 8 COS  */
2248 		wb_data[0] = 0x0;
2249 		wb_data[0] |= (1<<0);  /* RX */
2250 		wb_data[0] |= (1<<1);  /* TX */
2251 		wb_data[0] |= (1<<2);  /* Force initial Xon */
2252 		wb_data[0] |= (1<<3);  /* 8 cos */
2253 		wb_data[0] |= (1<<5);  /* STATS */
2254 		wb_data[1] = 0;
2255 		REG_WR_DMAE(cb, bmac_addr + BIGMAC2_REGISTER_PFC_CONTROL,
2256 			    wb_data, 2);
2257 		/* Clear the force Xon */
2258 		wb_data[0] &= ~(1<<2);
2259 	} else {
2260 		ELINK_DEBUG_P0(cb, "PFC is disabled\n");
2261 		/* Disable PFC RX & TX & STATS and set 8 COS */
2262 		wb_data[0] = 0x8;
2263 		wb_data[1] = 0;
2264 	}
2265 
2266 	REG_WR_DMAE(cb, bmac_addr + BIGMAC2_REGISTER_PFC_CONTROL, wb_data, 2);
2267 
2268 	/* Set Time (based unit is 512 bit time) between automatic
2269 	 * re-sending of PP packets amd enable automatic re-send of
2270 	 * Per-Priroity Packet as long as pp_gen is asserted and
2271 	 * pp_disable is low.
2272 	 */
2273 	val = 0x8000;
2274 	if (params->feature_config_flags & ELINK_FEATURE_CONFIG_PFC_ENABLED)
2275 		val |= (1<<16); /* enable automatic re-send */
2276 
2277 	wb_data[0] = val;
2278 	wb_data[1] = 0;
2279 	REG_WR_DMAE(cb, bmac_addr + BIGMAC2_REGISTER_TX_PAUSE_CONTROL,
2280 		    wb_data, 2);
2281 
2282 	/* mac control */
2283 	val = 0x3; /* Enable RX and TX */
2284 	if (is_lb) {
2285 		val |= 0x4; /* Local loopback */
2286 		ELINK_DEBUG_P0(cb, "enable bmac loopback\n");
2287 	}
2288 	/* When PFC enabled, Pass pause frames towards the NIG. */
2289 	if (params->feature_config_flags & ELINK_FEATURE_CONFIG_PFC_ENABLED)
2290 		val |= ((1<<6)|(1<<5));
2291 
2292 	wb_data[0] = val;
2293 	wb_data[1] = 0;
2294 	REG_WR_DMAE(cb, bmac_addr + BIGMAC2_REGISTER_BMAC_CONTROL, wb_data, 2);
2295 }
2296 #endif // EXCLUDE_BMAC2
2297 #endif // EXCLUDE_NON_COMMON_INIT
2298 #ifdef ELINK_ENHANCEMENTS
2299 
2300 /******************************************************************************
2301 * Description:
2302 *  This function is needed because NIG ARB_CREDIT_WEIGHT_X are
2303 *  not continues and ARB_CREDIT_WEIGHT_0 + offset is suitable.
2304 ******************************************************************************/
elink_pfc_nig_rx_priority_mask(struct elink_dev * cb,u8 cos_entry,u32 priority_mask,u8 port)2305 static elink_status_t elink_pfc_nig_rx_priority_mask(struct elink_dev *cb,
2306 					   u8 cos_entry,
2307 					   u32 priority_mask, u8 port)
2308 {
2309 	u32 nig_reg_rx_priority_mask_add = 0;
2310 
2311 	switch (cos_entry) {
2312 	case 0:
2313 	     nig_reg_rx_priority_mask_add = (port) ?
2314 		 NIG_REG_P1_RX_COS0_PRIORITY_MASK :
2315 		 NIG_REG_P0_RX_COS0_PRIORITY_MASK;
2316 	     break;
2317 	case 1:
2318 	    nig_reg_rx_priority_mask_add = (port) ?
2319 		NIG_REG_P1_RX_COS1_PRIORITY_MASK :
2320 		NIG_REG_P0_RX_COS1_PRIORITY_MASK;
2321 	    break;
2322 	case 2:
2323 	    nig_reg_rx_priority_mask_add = (port) ?
2324 		NIG_REG_P1_RX_COS2_PRIORITY_MASK :
2325 		NIG_REG_P0_RX_COS2_PRIORITY_MASK;
2326 	    break;
2327 	case 3:
2328 	    if (port)
2329 		return ELINK_STATUS_ERROR;
2330 	    nig_reg_rx_priority_mask_add = NIG_REG_P0_RX_COS3_PRIORITY_MASK;
2331 	    break;
2332 	case 4:
2333 	    if (port)
2334 		return ELINK_STATUS_ERROR;
2335 	    nig_reg_rx_priority_mask_add = NIG_REG_P0_RX_COS4_PRIORITY_MASK;
2336 	    break;
2337 	case 5:
2338 	    if (port)
2339 		return ELINK_STATUS_ERROR;
2340 	    nig_reg_rx_priority_mask_add = NIG_REG_P0_RX_COS5_PRIORITY_MASK;
2341 	    break;
2342 	}
2343 
2344 	REG_WR(cb, nig_reg_rx_priority_mask_add, priority_mask);
2345 
2346 	return ELINK_STATUS_OK;
2347 }
2348 #endif // ELINK_ENHANCEMENTS
2349 #ifndef EXCLUDE_NON_COMMON_INIT
elink_update_mng(struct elink_params * params,u32 link_status)2350 static void elink_update_mng(struct elink_params *params, u32 link_status)
2351 {
2352 	struct elink_dev *cb = params->cb;
2353 
2354 	REG_WR(cb, params->shmem_base +
2355 	       OFFSETOF(struct shmem_region,
2356 			port_mb[params->port].link_status), link_status);
2357 }
2358 
2359 #ifdef ELINK_ENHANCEMENTS
elink_update_pfc_nig(struct elink_params * params,struct elink_vars * vars,struct elink_nig_brb_pfc_port_params * nig_params)2360 static void elink_update_pfc_nig(struct elink_params *params,
2361 		struct elink_vars *vars,
2362 		struct elink_nig_brb_pfc_port_params *nig_params)
2363 {
2364 	u32 xcm_mask = 0, ppp_enable = 0, pause_enable = 0, llfc_out_en = 0;
2365 	u32 llfc_enable = 0, xcm_out_en = 0, hwpfc_enable = 0;
2366 	u32 pkt_priority_to_cos = 0;
2367 	struct elink_dev *cb = params->cb;
2368 	u8 port = params->port;
2369 
2370 	int set_pfc = params->feature_config_flags &
2371 		ELINK_FEATURE_CONFIG_PFC_ENABLED;
2372 	ELINK_DEBUG_P0(cb, "updating pfc nig parameters\n");
2373 
2374 	/* When NIG_LLH0_XCM_MASK_REG_LLHX_XCM_MASK_BCN bit is set
2375 	 * MAC control frames (that are not pause packets)
2376 	 * will be forwarded to the XCM.
2377 	 */
2378 	xcm_mask = REG_RD(cb, port ? NIG_REG_LLH1_XCM_MASK :
2379 			  NIG_REG_LLH0_XCM_MASK);
2380 	/* NIG params will override non PFC params, since it's possible to
2381 	 * do transition from PFC to SAFC
2382 	 */
2383 	if (set_pfc) {
2384 		pause_enable = 0;
2385 		llfc_out_en = 0;
2386 		llfc_enable = 0;
2387 		if (CHIP_IS_E3(params->chip_id))
2388 			ppp_enable = 0;
2389 		else
2390 			ppp_enable = 1;
2391 		xcm_mask &= ~(port ? NIG_LLH1_XCM_MASK_REG_LLH1_XCM_MASK_BCN :
2392 				     NIG_LLH0_XCM_MASK_REG_LLH0_XCM_MASK_BCN);
2393 		xcm_out_en = 0;
2394 		hwpfc_enable = 1;
2395 	} else  {
2396 		if (nig_params) {
2397 			llfc_out_en = nig_params->llfc_out_en;
2398 			llfc_enable = nig_params->llfc_enable;
2399 			pause_enable = nig_params->pause_enable;
2400 		} else  /* Default non PFC mode - PAUSE */
2401 			pause_enable = 1;
2402 
2403 		xcm_mask |= (port ? NIG_LLH1_XCM_MASK_REG_LLH1_XCM_MASK_BCN :
2404 			NIG_LLH0_XCM_MASK_REG_LLH0_XCM_MASK_BCN);
2405 		xcm_out_en = 1;
2406 	}
2407 
2408 	if (CHIP_IS_E3(params->chip_id))
2409 		REG_WR(cb, port ? NIG_REG_BRB1_PAUSE_IN_EN :
2410 		       NIG_REG_BRB0_PAUSE_IN_EN, pause_enable);
2411 	REG_WR(cb, port ? NIG_REG_LLFC_OUT_EN_1 :
2412 	       NIG_REG_LLFC_OUT_EN_0, llfc_out_en);
2413 	REG_WR(cb, port ? NIG_REG_LLFC_ENABLE_1 :
2414 	       NIG_REG_LLFC_ENABLE_0, llfc_enable);
2415 	REG_WR(cb, port ? NIG_REG_PAUSE_ENABLE_1 :
2416 	       NIG_REG_PAUSE_ENABLE_0, pause_enable);
2417 
2418 	REG_WR(cb, port ? NIG_REG_PPP_ENABLE_1 :
2419 	       NIG_REG_PPP_ENABLE_0, ppp_enable);
2420 
2421 	REG_WR(cb, port ? NIG_REG_LLH1_XCM_MASK :
2422 	       NIG_REG_LLH0_XCM_MASK, xcm_mask);
2423 
2424 	REG_WR(cb, port ? NIG_REG_LLFC_EGRESS_SRC_ENABLE_1 :
2425 	       NIG_REG_LLFC_EGRESS_SRC_ENABLE_0, 0x7);
2426 
2427 	/* Output enable for RX_XCM # IF */
2428 	REG_WR(cb, port ? NIG_REG_XCM1_OUT_EN :
2429 	       NIG_REG_XCM0_OUT_EN, xcm_out_en);
2430 
2431 	/* HW PFC TX enable */
2432 	REG_WR(cb, port ? NIG_REG_P1_HWPFC_ENABLE :
2433 	       NIG_REG_P0_HWPFC_ENABLE, hwpfc_enable);
2434 
2435 	if (nig_params) {
2436 		u8 i = 0;
2437 		pkt_priority_to_cos = nig_params->pkt_priority_to_cos;
2438 
2439 		for (i = 0; i < nig_params->num_of_rx_cos_priority_mask; i++)
2440 			elink_pfc_nig_rx_priority_mask(cb, i,
2441 		nig_params->rx_cos_priority_mask[i], port);
2442 
2443 		REG_WR(cb, port ? NIG_REG_LLFC_HIGH_PRIORITY_CLASSES_1 :
2444 		       NIG_REG_LLFC_HIGH_PRIORITY_CLASSES_0,
2445 		       nig_params->llfc_high_priority_classes);
2446 
2447 		REG_WR(cb, port ? NIG_REG_LLFC_LOW_PRIORITY_CLASSES_1 :
2448 		       NIG_REG_LLFC_LOW_PRIORITY_CLASSES_0,
2449 		       nig_params->llfc_low_priority_classes);
2450 	}
2451 	REG_WR(cb, port ? NIG_REG_P1_PKT_PRIORITY_TO_COS :
2452 	       NIG_REG_P0_PKT_PRIORITY_TO_COS,
2453 	       pkt_priority_to_cos);
2454 }
2455 
elink_update_pfc(struct elink_params * params,struct elink_vars * vars,struct elink_nig_brb_pfc_port_params * pfc_params)2456 elink_status_t elink_update_pfc(struct elink_params *params,
2457 		      struct elink_vars *vars,
2458 		      struct elink_nig_brb_pfc_port_params *pfc_params)
2459 {
2460 	/* The PFC and pause are orthogonal to one another, meaning when
2461 	 * PFC is enabled, the pause are disabled, and when PFC is
2462 	 * disabled, pause are set according to the pause result.
2463 	 */
2464 	u32 val;
2465 	struct elink_dev *cb = params->cb;
2466 	u8 bmac_loopback = (params->loopback_mode == ELINK_LOOPBACK_BMAC);
2467 
2468 	if (params->feature_config_flags & ELINK_FEATURE_CONFIG_PFC_ENABLED)
2469 		vars->link_status |= LINK_STATUS_PFC_ENABLED;
2470 	else
2471 		vars->link_status &= ~LINK_STATUS_PFC_ENABLED;
2472 
2473 	elink_update_mng(params, vars->link_status);
2474 
2475 	/* Update NIG params */
2476 	elink_update_pfc_nig(params, vars, pfc_params);
2477 
2478 	if (!vars->link_up)
2479 		return ELINK_STATUS_OK;
2480 
2481 	ELINK_DEBUG_P0(cb, "About to update PFC in BMAC\n");
2482 
2483 	if (CHIP_IS_E3(params->chip_id)) {
2484 		if (vars->mac_type == ELINK_MAC_TYPE_XMAC)
2485 			elink_update_pfc_xmac(params, vars, 0);
2486 	} else {
2487 		val = REG_RD(cb, MISC_REG_RESET_REG_2);
2488 		if ((val &
2489 		     (MISC_REGISTERS_RESET_REG_2_RST_BMAC0 << params->port))
2490 		    == 0) {
2491 			ELINK_DEBUG_P0(cb, "About to update PFC in EMAC\n");
2492 			elink_emac_enable(params, vars, 0);
2493 			return ELINK_STATUS_OK;
2494 		}
2495 		if (CHIP_IS_E2(params->chip_id))
2496 			elink_update_pfc_bmac2(params, vars, bmac_loopback);
2497 		else
2498 			elink_update_pfc_bmac1(params, vars);
2499 
2500 		val = 0;
2501 		if ((params->feature_config_flags &
2502 		     ELINK_FEATURE_CONFIG_PFC_ENABLED) ||
2503 		    (vars->flow_ctrl & ELINK_FLOW_CTRL_TX))
2504 			val = 1;
2505 		REG_WR(cb, NIG_REG_BMAC0_PAUSE_OUT_EN + params->port*4, val);
2506 	}
2507 	return ELINK_STATUS_OK;
2508 }
2509 
2510 #endif /* ELINK_ENHANCEMENTS */
2511 #ifndef EXCLUDE_BMAC1
elink_bmac1_enable(struct elink_params * params,struct elink_vars * vars,u8 is_lb)2512 static elink_status_t elink_bmac1_enable(struct elink_params *params,
2513 			      struct elink_vars *vars,
2514 			      u8 is_lb)
2515 {
2516 	struct elink_dev *cb = params->cb;
2517 	u8 port = params->port;
2518 	u32 bmac_addr = port ? NIG_REG_INGRESS_BMAC1_MEM :
2519 			       NIG_REG_INGRESS_BMAC0_MEM;
2520 	u32 wb_data[2];
2521 	u32 val;
2522 
2523 	ELINK_DEBUG_P0(cb, "Enabling BigMAC1\n");
2524 
2525 	/* XGXS control */
2526 	wb_data[0] = 0x3c;
2527 	wb_data[1] = 0;
2528 	REG_WR_DMAE(cb, bmac_addr + BIGMAC_REGISTER_BMAC_XGXS_CONTROL,
2529 		    wb_data, 2);
2530 
2531 	/* TX MAC SA */
2532 	wb_data[0] = ((params->mac_addr[2] << 24) |
2533 		       (params->mac_addr[3] << 16) |
2534 		       (params->mac_addr[4] << 8) |
2535 			params->mac_addr[5]);
2536 	wb_data[1] = ((params->mac_addr[0] << 8) |
2537 			params->mac_addr[1]);
2538 	REG_WR_DMAE(cb, bmac_addr + BIGMAC_REGISTER_TX_SOURCE_ADDR, wb_data, 2);
2539 
2540 	/* MAC control */
2541 	val = 0x3;
2542 	if (is_lb) {
2543 		val |= 0x4;
2544 		ELINK_DEBUG_P0(cb,  "enable bmac loopback\n");
2545 	}
2546 	wb_data[0] = val;
2547 	wb_data[1] = 0;
2548 	REG_WR_DMAE(cb, bmac_addr + BIGMAC_REGISTER_BMAC_CONTROL, wb_data, 2);
2549 
2550 	/* Set rx mtu */
2551 	wb_data[0] = ELINK_ETH_MAX_JUMBO_PACKET_SIZE + ELINK_ETH_OVREHEAD;
2552 	wb_data[1] = 0;
2553 	REG_WR_DMAE(cb, bmac_addr + BIGMAC_REGISTER_RX_MAX_SIZE, wb_data, 2);
2554 
2555 	elink_update_pfc_bmac1(params, vars);
2556 
2557 	/* Set tx mtu */
2558 	wb_data[0] = ELINK_ETH_MAX_JUMBO_PACKET_SIZE + ELINK_ETH_OVREHEAD;
2559 	wb_data[1] = 0;
2560 	REG_WR_DMAE(cb, bmac_addr + BIGMAC_REGISTER_TX_MAX_SIZE, wb_data, 2);
2561 
2562 	/* Set cnt max size */
2563 	wb_data[0] = ELINK_ETH_MAX_JUMBO_PACKET_SIZE + ELINK_ETH_OVREHEAD;
2564 	wb_data[1] = 0;
2565 	REG_WR_DMAE(cb, bmac_addr + BIGMAC_REGISTER_CNT_MAX_SIZE, wb_data, 2);
2566 
2567 	/* Configure SAFC */
2568 	wb_data[0] = 0x1000200;
2569 	wb_data[1] = 0;
2570 	REG_WR_DMAE(cb, bmac_addr + BIGMAC_REGISTER_RX_LLFC_MSG_FLDS,
2571 		    wb_data, 2);
2572 #ifdef ELINK_INCLUDE_EMUL
2573 	/* Fix for emulation */
2574 	if (CHIP_REV_IS_EMUL(params->chip_id)) {
2575 		wb_data[0] = 0xf000;
2576 		wb_data[1] = 0;
2577 		REG_WR_DMAE(cb,	bmac_addr + BIGMAC_REGISTER_TX_PAUSE_THRESHOLD,
2578 			    wb_data, 2);
2579 	}
2580 #endif /* ELINK_INCLUDE_EMUL */
2581 
2582 	return ELINK_STATUS_OK;
2583 }
2584 #endif /* EXCLUDE_BMAC1 */
2585 
2586 #ifndef EXCLUDE_BMAC2
elink_bmac2_enable(struct elink_params * params,struct elink_vars * vars,u8 is_lb)2587 static elink_status_t elink_bmac2_enable(struct elink_params *params,
2588 			      struct elink_vars *vars,
2589 			      u8 is_lb)
2590 {
2591 	struct elink_dev *cb = params->cb;
2592 	u8 port = params->port;
2593 	u32 bmac_addr = port ? NIG_REG_INGRESS_BMAC1_MEM :
2594 			       NIG_REG_INGRESS_BMAC0_MEM;
2595 	u32 wb_data[2];
2596 
2597 	ELINK_DEBUG_P0(cb, "Enabling BigMAC2\n");
2598 
2599 	wb_data[0] = 0;
2600 	wb_data[1] = 0;
2601 	REG_WR_DMAE(cb, bmac_addr + BIGMAC2_REGISTER_BMAC_CONTROL, wb_data, 2);
2602 	USLEEP(cb, 30);
2603 
2604 	/* XGXS control: Reset phy HW, MDIO registers, PHY PLL and BMAC */
2605 	wb_data[0] = 0x3c;
2606 	wb_data[1] = 0;
2607 	REG_WR_DMAE(cb, bmac_addr + BIGMAC2_REGISTER_BMAC_XGXS_CONTROL,
2608 		    wb_data, 2);
2609 
2610 	USLEEP(cb, 30);
2611 
2612 	/* TX MAC SA */
2613 	wb_data[0] = ((params->mac_addr[2] << 24) |
2614 		       (params->mac_addr[3] << 16) |
2615 		       (params->mac_addr[4] << 8) |
2616 			params->mac_addr[5]);
2617 	wb_data[1] = ((params->mac_addr[0] << 8) |
2618 			params->mac_addr[1]);
2619 	REG_WR_DMAE(cb, bmac_addr + BIGMAC2_REGISTER_TX_SOURCE_ADDR,
2620 		    wb_data, 2);
2621 
2622 	USLEEP(cb, 30);
2623 
2624 	/* Configure SAFC */
2625 	wb_data[0] = 0x1000200;
2626 	wb_data[1] = 0;
2627 	REG_WR_DMAE(cb, bmac_addr + BIGMAC2_REGISTER_RX_LLFC_MSG_FLDS,
2628 		    wb_data, 2);
2629 	USLEEP(cb, 30);
2630 
2631 	/* Set RX MTU */
2632 	wb_data[0] = ELINK_ETH_MAX_JUMBO_PACKET_SIZE + ELINK_ETH_OVREHEAD;
2633 	wb_data[1] = 0;
2634 	REG_WR_DMAE(cb, bmac_addr + BIGMAC2_REGISTER_RX_MAX_SIZE, wb_data, 2);
2635 	USLEEP(cb, 30);
2636 
2637 	/* Set TX MTU */
2638 	wb_data[0] = ELINK_ETH_MAX_JUMBO_PACKET_SIZE + ELINK_ETH_OVREHEAD;
2639 	wb_data[1] = 0;
2640 	REG_WR_DMAE(cb, bmac_addr + BIGMAC2_REGISTER_TX_MAX_SIZE, wb_data, 2);
2641 	USLEEP(cb, 30);
2642 	/* Set cnt max size */
2643 	wb_data[0] = ELINK_ETH_MAX_JUMBO_PACKET_SIZE + ELINK_ETH_OVREHEAD - 2;
2644 	wb_data[1] = 0;
2645 	REG_WR_DMAE(cb, bmac_addr + BIGMAC2_REGISTER_CNT_MAX_SIZE, wb_data, 2);
2646 	USLEEP(cb, 30);
2647 	elink_update_pfc_bmac2(params, vars, is_lb);
2648 
2649 	return ELINK_STATUS_OK;
2650 }
2651 #endif /* EXCLUDE_BMAC2 */
2652 
2653 #if !defined(EXCLUDE_BMAC2)
elink_bmac_enable(struct elink_params * params,struct elink_vars * vars,u8 is_lb,u8 reset_bmac)2654 static elink_status_t elink_bmac_enable(struct elink_params *params,
2655 			     struct elink_vars *vars,
2656 			     u8 is_lb, u8 reset_bmac)
2657 {
2658 	elink_status_t rc = ELINK_STATUS_OK;
2659 	u8 port = params->port;
2660 	struct elink_dev *cb = params->cb;
2661 	u32 val;
2662 	/* Reset and unreset the BigMac */
2663 	if (reset_bmac) {
2664 		REG_WR(cb, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR,
2665 		       (MISC_REGISTERS_RESET_REG_2_RST_BMAC0 << port));
2666 		MSLEEP(cb, 1);
2667 	}
2668 
2669 	REG_WR(cb, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_SET,
2670 	       (MISC_REGISTERS_RESET_REG_2_RST_BMAC0 << port));
2671 
2672 	/* Enable access for bmac registers */
2673 	REG_WR(cb, NIG_REG_BMAC0_REGS_OUT_EN + port*4, 0x1);
2674 
2675 	/* Enable BMAC according to BMAC type*/
2676 #ifdef ELINK_ENHANCEMENTS
2677 	if (CHIP_IS_E2(params->chip_id))
2678 #endif
2679 #ifndef EXCLUDE_BMAC2
2680 		rc = elink_bmac2_enable(params, vars, is_lb);
2681 #endif
2682 #ifdef ELINK_ENHANCEMENTS
2683 	else
2684 #endif
2685 #ifndef EXCLUDE_BMAC1
2686 		rc = elink_bmac1_enable(params, vars, is_lb);
2687 #endif
2688 	REG_WR(cb, NIG_REG_XGXS_SERDES0_MODE_SEL + port*4, 0x1);
2689 	REG_WR(cb, NIG_REG_XGXS_LANE_SEL_P0 + port*4, 0x0);
2690 	REG_WR(cb, NIG_REG_EGRESS_EMAC0_PORT + port*4, 0x0);
2691 	val = 0;
2692 	if ((params->feature_config_flags &
2693 	      ELINK_FEATURE_CONFIG_PFC_ENABLED) ||
2694 	    (vars->flow_ctrl & ELINK_FLOW_CTRL_TX))
2695 		val = 1;
2696 	REG_WR(cb, NIG_REG_BMAC0_PAUSE_OUT_EN + port*4, val);
2697 	REG_WR(cb, NIG_REG_EGRESS_EMAC0_OUT_EN + port*4, 0x0);
2698 	REG_WR(cb, NIG_REG_EMAC0_IN_EN + port*4, 0x0);
2699 	REG_WR(cb, NIG_REG_EMAC0_PAUSE_OUT_EN + port*4, 0x0);
2700 	REG_WR(cb, NIG_REG_BMAC0_IN_EN + port*4, 0x1);
2701 	REG_WR(cb, NIG_REG_BMAC0_OUT_EN + port*4, 0x1);
2702 
2703 	vars->mac_type = ELINK_MAC_TYPE_BMAC;
2704 	return rc;
2705 }
2706 #endif /* #if !defined(EXCLUDE_BMAC2) && !defined(EXCLUDE_BMAC1) */
2707 
2708 #if !defined(EXCLUDE_BMAC2) && !defined(EXCLUDE_BMAC1)
elink_set_bmac_rx(struct elink_dev * cb,u32 chip_id,u8 port,u8 en)2709 static void elink_set_bmac_rx(struct elink_dev *cb, u32 chip_id, u8 port, u8 en)
2710 {
2711 	u32 bmac_addr = port ? NIG_REG_INGRESS_BMAC1_MEM :
2712 			NIG_REG_INGRESS_BMAC0_MEM;
2713 	u32 wb_data[2];
2714 	u32 nig_bmac_enable = REG_RD(cb, NIG_REG_BMAC0_REGS_OUT_EN + port*4);
2715 
2716 	if (CHIP_IS_E2(chip_id))
2717 		bmac_addr += BIGMAC2_REGISTER_BMAC_CONTROL;
2718 	else
2719 		bmac_addr += BIGMAC_REGISTER_BMAC_CONTROL;
2720 	/* Only if the bmac is out of reset */
2721 	if (REG_RD(cb, MISC_REG_RESET_REG_2) &
2722 			(MISC_REGISTERS_RESET_REG_2_RST_BMAC0 << port) &&
2723 	    nig_bmac_enable) {
2724 		/* Clear Rx Enable bit in BMAC_CONTROL register */
2725 		REG_RD_DMAE(cb, bmac_addr, wb_data, 2);
2726 		if (en)
2727 			wb_data[0] |= ELINK_BMAC_CONTROL_RX_ENABLE;
2728 		else
2729 			wb_data[0] &= ~ELINK_BMAC_CONTROL_RX_ENABLE;
2730 		REG_WR_DMAE(cb, bmac_addr, wb_data, 2);
2731 		MSLEEP(cb, 1);
2732 	}
2733 }
2734 #endif /* !defined(EXCLUDE_BMAC2) && !defined(EXCLUDE_BMAC1) */
2735 #endif // EXCLUDE_NON_COMMON_INIT
2736 
2737 #ifndef ELINK_AUX_POWER
elink_pbf_update(struct elink_params * params,u32 flow_ctrl,u32 line_speed)2738 static elink_status_t elink_pbf_update(struct elink_params *params, u32 flow_ctrl,
2739 			    u32 line_speed)
2740 {
2741 	struct elink_dev *cb = params->cb;
2742 	u8 port = params->port;
2743 	u32 init_crd, crd;
2744 	u32 count = 1000;
2745 
2746 	/* Disable port */
2747 	REG_WR(cb, PBF_REG_DISABLE_NEW_TASK_PROC_P0 + port*4, 0x1);
2748 
2749 	/* Wait for init credit */
2750 	init_crd = REG_RD(cb, PBF_REG_P0_INIT_CRD + port*4);
2751 	crd = REG_RD(cb, PBF_REG_P0_CREDIT + port*8);
2752 	ELINK_DEBUG_P2(cb, "init_crd 0x%x  crd 0x%x\n", init_crd, crd);
2753 
2754 	while ((init_crd != crd) && count) {
2755 		MSLEEP(cb, 5);
2756 		crd = REG_RD(cb, PBF_REG_P0_CREDIT + port*8);
2757 		count--;
2758 	}
2759 	crd = REG_RD(cb, PBF_REG_P0_CREDIT + port*8);
2760 	if (init_crd != crd) {
2761 		ELINK_DEBUG_P2(cb, "BUG! init_crd 0x%x != crd 0x%x\n",
2762 			  init_crd, crd);
2763 		return ELINK_STATUS_ERROR;
2764 	}
2765 
2766 	if (flow_ctrl & ELINK_FLOW_CTRL_RX ||
2767 	    line_speed == ELINK_SPEED_10 ||
2768 	    line_speed == ELINK_SPEED_100 ||
2769 	    line_speed == ELINK_SPEED_1000 ||
2770 	    line_speed == ELINK_SPEED_2500) {
2771 		REG_WR(cb, PBF_REG_P0_PAUSE_ENABLE + port*4, 1);
2772 		/* Update threshold */
2773 		REG_WR(cb, PBF_REG_P0_ARB_THRSH + port*4, 0);
2774 		/* Update init credit */
2775 		init_crd = 778;		/* (800-18-4) */
2776 
2777 	} else {
2778 		u32 thresh = (ELINK_ETH_MAX_JUMBO_PACKET_SIZE +
2779 			      ELINK_ETH_OVREHEAD)/16;
2780 		REG_WR(cb, PBF_REG_P0_PAUSE_ENABLE + port*4, 0);
2781 		/* Update threshold */
2782 		REG_WR(cb, PBF_REG_P0_ARB_THRSH + port*4, thresh);
2783 		/* Update init credit */
2784 		switch (line_speed) {
2785 		case ELINK_SPEED_10000:
2786 			init_crd = thresh + 553 - 22;
2787 			break;
2788 		default:
2789 			ELINK_DEBUG_P1(cb, "Invalid line_speed 0x%x\n",
2790 				  line_speed);
2791 			return ELINK_STATUS_ERROR;
2792 		}
2793 	}
2794 	REG_WR(cb, PBF_REG_P0_INIT_CRD + port*4, init_crd);
2795 	ELINK_DEBUG_P2(cb, "PBF updated to speed %d credit %d\n",
2796 		 line_speed, init_crd);
2797 
2798 	/* Probe the credit changes */
2799 	REG_WR(cb, PBF_REG_INIT_P0 + port*4, 0x1);
2800 	MSLEEP(cb, 5);
2801 	REG_WR(cb, PBF_REG_INIT_P0 + port*4, 0x0);
2802 
2803 	/* Enable port */
2804 	REG_WR(cb, PBF_REG_DISABLE_NEW_TASK_PROC_P0 + port*4, 0x0);
2805 	return ELINK_STATUS_OK;
2806 }
2807 #endif /* ELINK_AUX_POWER */
2808 
2809 #ifndef EXCLUDE_COMMON_INIT
2810 /**
2811  * elink_get_emac_base - retrive emac base address
2812  *
2813  * @bp:			driver handle
2814  * @mdc_mdio_access:	access type
2815  * @port:		port id
2816  *
2817  * This function selects the MDC/MDIO access (through emac0 or
2818  * emac1) depend on the mdc_mdio_access, port, port swapped. Each
2819  * phy has a default access mode, which could also be overridden
2820  * by nvram configuration. This parameter, whether this is the
2821  * default phy configuration, or the nvram overrun
2822  * configuration, is passed here as mdc_mdio_access and selects
2823  * the emac_base for the CL45 read/writes operations
2824  */
elink_get_emac_base(struct elink_dev * cb,u32 mdc_mdio_access,u8 port)2825 static u32 elink_get_emac_base(struct elink_dev *cb,
2826 			       u32 mdc_mdio_access, u8 port)
2827 {
2828 	u32 emac_base = 0;
2829 	switch (mdc_mdio_access) {
2830 	case SHARED_HW_CFG_MDC_MDIO_ACCESS1_PHY_TYPE:
2831 		break;
2832 	case SHARED_HW_CFG_MDC_MDIO_ACCESS1_EMAC0:
2833 		if (REG_RD(cb, NIG_REG_PORT_SWAP))
2834 			emac_base = GRCBASE_EMAC1;
2835 		else
2836 			emac_base = GRCBASE_EMAC0;
2837 		break;
2838 	case SHARED_HW_CFG_MDC_MDIO_ACCESS1_EMAC1:
2839 		if (REG_RD(cb, NIG_REG_PORT_SWAP))
2840 			emac_base = GRCBASE_EMAC0;
2841 		else
2842 			emac_base = GRCBASE_EMAC1;
2843 		break;
2844 	case SHARED_HW_CFG_MDC_MDIO_ACCESS1_BOTH:
2845 		emac_base = (port) ? GRCBASE_EMAC1 : GRCBASE_EMAC0;
2846 		break;
2847 	case SHARED_HW_CFG_MDC_MDIO_ACCESS1_SWAPPED:
2848 		emac_base = (port) ? GRCBASE_EMAC0 : GRCBASE_EMAC1;
2849 		break;
2850 	default:
2851 		break;
2852 	}
2853 	return emac_base;
2854 
2855 }
2856 #endif /* EXCLUDE_COMMON_INIT */
2857 
2858 /******************************************************************/
2859 /*			CL22 access functions			  */
2860 /******************************************************************/
2861 #ifndef EXCLUDE_NON_COMMON_INIT
2862 #ifndef EXCLUDE_BCM54618SE
elink_cl22_write(struct elink_dev * cb,struct elink_phy * phy,u16 reg,u16 val)2863 static elink_status_t elink_cl22_write(struct elink_dev *cb,
2864 				       struct elink_phy *phy,
2865 				       u16 reg, u16 val)
2866 {
2867 	u32 tmp, mode;
2868 	u8 i;
2869 	elink_status_t rc = ELINK_STATUS_OK;
2870 	/* Switch to CL22 */
2871 	mode = REG_RD(cb, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_MODE);
2872 	REG_WR(cb, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_MODE,
2873 	       mode & ~EMAC_MDIO_MODE_CLAUSE_45);
2874 
2875 	/* Address */
2876 	tmp = ((phy->addr << 21) | (reg << 16) | val |
2877 	       EMAC_MDIO_COMM_COMMAND_WRITE_22 |
2878 	       EMAC_MDIO_COMM_START_BUSY);
2879 	REG_WR(cb, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_COMM, tmp);
2880 
2881 	for (i = 0; i < 50; i++) {
2882 		USLEEP(cb, 10);
2883 
2884 		tmp = REG_RD(cb, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_COMM);
2885 		if (!(tmp & EMAC_MDIO_COMM_START_BUSY)) {
2886 			USLEEP(cb, 5);
2887 			break;
2888 		}
2889 	}
2890 	if (tmp & EMAC_MDIO_COMM_START_BUSY) {
2891 		ELINK_DEBUG_P0(cb, "write phy register failed\n");
2892 		rc = ELINK_STATUS_TIMEOUT;
2893 	}
2894 	REG_WR(cb, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_MODE, mode);
2895 	return rc;
2896 }
2897 
elink_cl22_read(struct elink_dev * cb,struct elink_phy * phy,u16 reg,u16 * ret_val)2898 static elink_status_t elink_cl22_read(struct elink_dev *cb,
2899 				      struct elink_phy *phy,
2900 				      u16 reg, u16 *ret_val)
2901 {
2902 	u32 val, mode;
2903 	u16 i;
2904 	elink_status_t rc = ELINK_STATUS_OK;
2905 
2906 	/* Switch to CL22 */
2907 	mode = REG_RD(cb, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_MODE);
2908 	REG_WR(cb, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_MODE,
2909 	       mode & ~EMAC_MDIO_MODE_CLAUSE_45);
2910 
2911 	/* Address */
2912 	val = ((phy->addr << 21) | (reg << 16) |
2913 	       EMAC_MDIO_COMM_COMMAND_READ_22 |
2914 	       EMAC_MDIO_COMM_START_BUSY);
2915 	REG_WR(cb, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_COMM, val);
2916 
2917 	for (i = 0; i < 50; i++) {
2918 		USLEEP(cb, 10);
2919 
2920 		val = REG_RD(cb, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_COMM);
2921 		if (!(val & EMAC_MDIO_COMM_START_BUSY)) {
2922 			*ret_val = (u16)(val & EMAC_MDIO_COMM_DATA);
2923 			USLEEP(cb, 5);
2924 			break;
2925 		}
2926 	}
2927 	if (val & EMAC_MDIO_COMM_START_BUSY) {
2928 		ELINK_DEBUG_P0(cb, "read phy register failed\n");
2929 
2930 		*ret_val = 0;
2931 		rc = ELINK_STATUS_TIMEOUT;
2932 	}
2933 	REG_WR(cb, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_MODE, mode);
2934 	return rc;
2935 }
2936 #endif
2937 #endif /* EXCLUDE_NON_COMMON_INIT */
2938 
2939 /******************************************************************/
2940 /*			CL45 access functions			  */
2941 /******************************************************************/
elink_cl45_read(struct elink_dev * cb,struct elink_phy * phy,u8 devad,u16 reg,u16 * ret_val)2942 static elink_status_t elink_cl45_read(struct elink_dev *cb, struct elink_phy *phy,
2943 			   u8 devad, u16 reg, u16 *ret_val)
2944 {
2945 	u32 val;
2946 	u16 i;
2947 	elink_status_t rc = ELINK_STATUS_OK;
2948 #ifndef ELINK_AUX_POWER
2949 	u32 chip_id;
2950 	if (phy->flags & ELINK_FLAGS_MDC_MDIO_WA_G) {
2951 		chip_id = (REG_RD(cb, MISC_REG_CHIP_NUM) << 16) |
2952 			  ((REG_RD(cb, MISC_REG_CHIP_REV) & 0xf) << 12);
2953 		elink_set_mdio_clk(cb, chip_id, phy->mdio_ctrl);
2954 	}
2955 #endif /* ELINK_AUX_POWER */
2956 
2957 	if (phy->flags & ELINK_FLAGS_MDC_MDIO_WA_B0)
2958 		elink_bits_en(cb, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_STATUS,
2959 			      EMAC_MDIO_STATUS_10MB);
2960 	/* Address */
2961 	val = ((phy->addr << 21) | (devad << 16) | reg |
2962 	       EMAC_MDIO_COMM_COMMAND_ADDRESS |
2963 	       EMAC_MDIO_COMM_START_BUSY);
2964 	REG_WR(cb, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_COMM, val);
2965 
2966 	for (i = 0; i < 50; i++) {
2967 		USLEEP(cb, 10);
2968 
2969 		val = REG_RD(cb, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_COMM);
2970 		if (!(val & EMAC_MDIO_COMM_START_BUSY)) {
2971 			USLEEP(cb, 5);
2972 			break;
2973 		}
2974 	}
2975 	if (val & EMAC_MDIO_COMM_START_BUSY) {
2976 		ELINK_DEBUG_P0(cb, "read phy register failed\n");
2977 		elink_cb_event_log(cb, ELINK_LOG_ID_MDIO_ACCESS_TIMEOUT); // "MDC/MDIO access timeout\n"
2978 
2979 		*ret_val = 0;
2980 		rc = ELINK_STATUS_TIMEOUT;
2981 	} else {
2982 		/* Data */
2983 		val = ((phy->addr << 21) | (devad << 16) |
2984 		       EMAC_MDIO_COMM_COMMAND_READ_45 |
2985 		       EMAC_MDIO_COMM_START_BUSY);
2986 		REG_WR(cb, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_COMM, val);
2987 
2988 		for (i = 0; i < 50; i++) {
2989 			USLEEP(cb, 10);
2990 
2991 			val = REG_RD(cb, phy->mdio_ctrl +
2992 				     EMAC_REG_EMAC_MDIO_COMM);
2993 			if (!(val & EMAC_MDIO_COMM_START_BUSY)) {
2994 				*ret_val = (u16)(val & EMAC_MDIO_COMM_DATA);
2995 				break;
2996 			}
2997 		}
2998 		if (val & EMAC_MDIO_COMM_START_BUSY) {
2999 			ELINK_DEBUG_P0(cb, "read phy register failed\n");
3000 			elink_cb_event_log(cb, ELINK_LOG_ID_MDIO_ACCESS_TIMEOUT); // "MDC/MDIO access timeout\n"
3001 
3002 			*ret_val = 0;
3003 			rc = ELINK_STATUS_TIMEOUT;
3004 		}
3005 	}
3006 	/* Work around for E3 A0 */
3007 	if (phy->flags & ELINK_FLAGS_MDC_MDIO_WA) {
3008 		phy->flags ^= ELINK_FLAGS_DUMMY_READ;
3009 		if (phy->flags & ELINK_FLAGS_DUMMY_READ) {
3010 			u16 temp_val;
3011 			elink_cl45_read(cb, phy, devad, 0xf, &temp_val);
3012 		}
3013 	}
3014 
3015 	if (phy->flags & ELINK_FLAGS_MDC_MDIO_WA_B0)
3016 		elink_bits_dis(cb, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_STATUS,
3017 			       EMAC_MDIO_STATUS_10MB);
3018 	return rc;
3019 }
3020 
elink_cl45_write(struct elink_dev * cb,struct elink_phy * phy,u8 devad,u16 reg,u16 val)3021 static elink_status_t elink_cl45_write(struct elink_dev *cb, struct elink_phy *phy,
3022 			    u8 devad, u16 reg, u16 val)
3023 {
3024 	u32 tmp;
3025 	u8 i;
3026 	elink_status_t rc = ELINK_STATUS_OK;
3027 #ifndef ELINK_AUX_POWER
3028 	u32 chip_id;
3029 	if (phy->flags & ELINK_FLAGS_MDC_MDIO_WA_G) {
3030 		chip_id = (REG_RD(cb, MISC_REG_CHIP_NUM) << 16) |
3031 			  ((REG_RD(cb, MISC_REG_CHIP_REV) & 0xf) << 12);
3032 		elink_set_mdio_clk(cb, chip_id, phy->mdio_ctrl);
3033 	}
3034 #endif /* ELINK_AUX_POWER */
3035 
3036 	if (phy->flags & ELINK_FLAGS_MDC_MDIO_WA_B0)
3037 		elink_bits_en(cb, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_STATUS,
3038 			      EMAC_MDIO_STATUS_10MB);
3039 
3040 	/* Address */
3041 	tmp = ((phy->addr << 21) | (devad << 16) | reg |
3042 	       EMAC_MDIO_COMM_COMMAND_ADDRESS |
3043 	       EMAC_MDIO_COMM_START_BUSY);
3044 	REG_WR(cb, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_COMM, tmp);
3045 
3046 	for (i = 0; i < 50; i++) {
3047 		USLEEP(cb, 10);
3048 
3049 		tmp = REG_RD(cb, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_COMM);
3050 		if (!(tmp & EMAC_MDIO_COMM_START_BUSY)) {
3051 			USLEEP(cb, 5);
3052 			break;
3053 		}
3054 	}
3055 	if (tmp & EMAC_MDIO_COMM_START_BUSY) {
3056 		ELINK_DEBUG_P0(cb, "write phy register failed\n");
3057 		elink_cb_event_log(cb, ELINK_LOG_ID_MDIO_ACCESS_TIMEOUT); // "MDC/MDIO access timeout\n"
3058 
3059 		rc = ELINK_STATUS_TIMEOUT;
3060 	} else {
3061 		/* Data */
3062 		tmp = ((phy->addr << 21) | (devad << 16) | val |
3063 		       EMAC_MDIO_COMM_COMMAND_WRITE_45 |
3064 		       EMAC_MDIO_COMM_START_BUSY);
3065 		REG_WR(cb, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_COMM, tmp);
3066 
3067 		for (i = 0; i < 50; i++) {
3068 			USLEEP(cb, 10);
3069 
3070 			tmp = REG_RD(cb, phy->mdio_ctrl +
3071 				     EMAC_REG_EMAC_MDIO_COMM);
3072 			if (!(tmp & EMAC_MDIO_COMM_START_BUSY)) {
3073 				USLEEP(cb, 5);
3074 				break;
3075 			}
3076 		}
3077 		if (tmp & EMAC_MDIO_COMM_START_BUSY) {
3078 			ELINK_DEBUG_P0(cb, "write phy register failed\n");
3079 			elink_cb_event_log(cb, ELINK_LOG_ID_MDIO_ACCESS_TIMEOUT); // "MDC/MDIO access timeout\n"
3080 
3081 			rc = ELINK_STATUS_TIMEOUT;
3082 		}
3083 	}
3084 	/* Work around for E3 A0 */
3085 	if (phy->flags & ELINK_FLAGS_MDC_MDIO_WA) {
3086 		phy->flags ^= ELINK_FLAGS_DUMMY_READ;
3087 		if (phy->flags & ELINK_FLAGS_DUMMY_READ) {
3088 			u16 temp_val;
3089 			elink_cl45_read(cb, phy, devad, 0xf, &temp_val);
3090 		}
3091 	}
3092 	if (phy->flags & ELINK_FLAGS_MDC_MDIO_WA_B0)
3093 		elink_bits_dis(cb, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_STATUS,
3094 			       EMAC_MDIO_STATUS_10MB);
3095 	return rc;
3096 }
3097 
3098 /******************************************************************/
3099 /*			EEE section				   */
3100 /******************************************************************/
3101 #ifndef EXCLUDE_NON_COMMON_INIT
3102 #ifndef EXCLUDE_WARPCORE
elink_eee_has_cap(struct elink_params * params)3103 static u8 elink_eee_has_cap(struct elink_params *params)
3104 {
3105 	struct elink_dev *cb = params->cb;
3106 
3107 	if (REG_RD(cb, params->shmem2_base) <=
3108 		   OFFSETOF(struct shmem2_region, eee_status[params->port]))
3109 		return 0;
3110 
3111 	return 1;
3112 }
3113 
elink_eee_nvram_to_time(u32 nvram_mode,u32 * idle_timer)3114 static elink_status_t elink_eee_nvram_to_time(u32 nvram_mode, u32 *idle_timer)
3115 {
3116 	switch (nvram_mode) {
3117 	case PORT_FEAT_CFG_EEE_POWER_MODE_BALANCED:
3118 		*idle_timer = ELINK_EEE_MODE_NVRAM_BALANCED_TIME;
3119 		break;
3120 	case PORT_FEAT_CFG_EEE_POWER_MODE_AGGRESSIVE:
3121 		*idle_timer = ELINK_EEE_MODE_NVRAM_AGGRESSIVE_TIME;
3122 		break;
3123 	case PORT_FEAT_CFG_EEE_POWER_MODE_LOW_LATENCY:
3124 		*idle_timer = ELINK_EEE_MODE_NVRAM_LATENCY_TIME;
3125 		break;
3126 	default:
3127 		*idle_timer = 0;
3128 		break;
3129 	}
3130 
3131 	return ELINK_STATUS_OK;
3132 }
3133 
elink_eee_time_to_nvram(u32 idle_timer,u32 * nvram_mode)3134 static elink_status_t elink_eee_time_to_nvram(u32 idle_timer, u32 *nvram_mode)
3135 {
3136 	switch (idle_timer) {
3137 	case ELINK_EEE_MODE_NVRAM_BALANCED_TIME:
3138 		*nvram_mode = PORT_FEAT_CFG_EEE_POWER_MODE_BALANCED;
3139 		break;
3140 	case ELINK_EEE_MODE_NVRAM_AGGRESSIVE_TIME:
3141 		*nvram_mode = PORT_FEAT_CFG_EEE_POWER_MODE_AGGRESSIVE;
3142 		break;
3143 	case ELINK_EEE_MODE_NVRAM_LATENCY_TIME:
3144 		*nvram_mode = PORT_FEAT_CFG_EEE_POWER_MODE_LOW_LATENCY;
3145 		break;
3146 	default:
3147 		*nvram_mode = PORT_FEAT_CFG_EEE_POWER_MODE_DISABLED;
3148 		break;
3149 	}
3150 
3151 	return ELINK_STATUS_OK;
3152 }
3153 
elink_eee_calc_timer(struct elink_params * params)3154 static u32 elink_eee_calc_timer(struct elink_params *params)
3155 {
3156 	u32 eee_mode, eee_idle;
3157 	struct elink_dev *cb = params->cb;
3158 
3159 	if (params->eee_mode & ELINK_EEE_MODE_OVERRIDE_NVRAM) {
3160 		if (params->eee_mode & ELINK_EEE_MODE_OUTPUT_TIME) {
3161 			/* time value in eee_mode --> used directly*/
3162 			eee_idle = params->eee_mode & ELINK_EEE_MODE_TIMER_MASK;
3163 		} else {
3164 			/* hsi value in eee_mode --> time */
3165 			if (elink_eee_nvram_to_time(params->eee_mode &
3166 						    ELINK_EEE_MODE_NVRAM_MASK,
3167 						    &eee_idle))
3168 				return 0;
3169 		}
3170 	} else {
3171 		/* hsi values in nvram --> time*/
3172 		eee_mode = ((REG_RD(cb, params->shmem_base +
3173 				    OFFSETOF(struct shmem_region, dev_info.
3174 				    port_feature_config[params->port].
3175 				    eee_power_mode)) &
3176 			     PORT_FEAT_CFG_EEE_POWER_MODE_MASK) >>
3177 			    PORT_FEAT_CFG_EEE_POWER_MODE_SHIFT);
3178 
3179 		if (elink_eee_nvram_to_time(eee_mode, &eee_idle))
3180 			return 0;
3181 	}
3182 
3183 	return eee_idle;
3184 }
3185 
elink_eee_set_timers(struct elink_params * params,struct elink_vars * vars)3186 static elink_status_t elink_eee_set_timers(struct elink_params *params,
3187 				   struct elink_vars *vars)
3188 {
3189 	u32 eee_idle = 0, eee_mode;
3190 	struct elink_dev *cb = params->cb;
3191 
3192 	eee_idle = elink_eee_calc_timer(params);
3193 
3194 	if (eee_idle) {
3195 		REG_WR(cb, MISC_REG_CPMU_LP_IDLE_THR_P0 + (params->port << 2),
3196 		       eee_idle);
3197 	} else if ((params->eee_mode & ELINK_EEE_MODE_ENABLE_LPI) &&
3198 		   (params->eee_mode & ELINK_EEE_MODE_OVERRIDE_NVRAM) &&
3199 		   (params->eee_mode & ELINK_EEE_MODE_OUTPUT_TIME)) {
3200 		ELINK_DEBUG_P0(cb, "Error: Tx LPI is enabled with timer 0\n");
3201 		return ELINK_STATUS_ERROR;
3202 	}
3203 
3204 	vars->eee_status &= ~(SHMEM_EEE_TIMER_MASK | SHMEM_EEE_TIME_OUTPUT_BIT);
3205 	if (params->eee_mode & ELINK_EEE_MODE_OUTPUT_TIME) {
3206 		/* eee_idle in 1u --> eee_status in 16u */
3207 		eee_idle >>= 4;
3208 		vars->eee_status |= (eee_idle & SHMEM_EEE_TIMER_MASK) |
3209 				    SHMEM_EEE_TIME_OUTPUT_BIT;
3210 	} else {
3211 		if (elink_eee_time_to_nvram(eee_idle, &eee_mode))
3212 			return ELINK_STATUS_ERROR;
3213 		vars->eee_status |= eee_mode;
3214 	}
3215 
3216 	return ELINK_STATUS_OK;
3217 }
3218 
elink_eee_initial_config(struct elink_params * params,struct elink_vars * vars,u8 mode)3219 static elink_status_t elink_eee_initial_config(struct elink_params *params,
3220 				     struct elink_vars *vars, u8 mode)
3221 {
3222 	vars->eee_status |= ((u32) mode) << SHMEM_EEE_SUPPORTED_SHIFT;
3223 
3224 	/* Propogate params' bits --> vars (for migration exposure) */
3225 	if (params->eee_mode & ELINK_EEE_MODE_ENABLE_LPI)
3226 		vars->eee_status |= SHMEM_EEE_LPI_REQUESTED_BIT;
3227 	else
3228 		vars->eee_status &= ~SHMEM_EEE_LPI_REQUESTED_BIT;
3229 
3230 	if (params->eee_mode & ELINK_EEE_MODE_ADV_LPI)
3231 		vars->eee_status |= SHMEM_EEE_REQUESTED_BIT;
3232 	else
3233 		vars->eee_status &= ~SHMEM_EEE_REQUESTED_BIT;
3234 
3235 	return elink_eee_set_timers(params, vars);
3236 }
3237 
elink_eee_disable(struct elink_phy * phy,struct elink_params * params,struct elink_vars * vars)3238 static elink_status_t elink_eee_disable(struct elink_phy *phy,
3239 				struct elink_params *params,
3240 				struct elink_vars *vars)
3241 {
3242 	struct elink_dev *cb = params->cb;
3243 
3244 	/* Make Certain LPI is disabled */
3245 	REG_WR(cb, MISC_REG_CPMU_LP_FW_ENABLE_P0 + (params->port << 2), 0);
3246 
3247 	elink_cl45_write(cb, phy, MDIO_AN_DEVAD, MDIO_AN_REG_EEE_ADV, 0x0);
3248 
3249 	vars->eee_status &= ~SHMEM_EEE_ADV_STATUS_MASK;
3250 
3251 	return ELINK_STATUS_OK;
3252 }
3253 
elink_eee_advertise(struct elink_phy * phy,struct elink_params * params,struct elink_vars * vars,u8 modes)3254 static elink_status_t elink_eee_advertise(struct elink_phy *phy,
3255 				  struct elink_params *params,
3256 				  struct elink_vars *vars, u8 modes)
3257 {
3258 	struct elink_dev *cb = params->cb;
3259 	u16 val = 0;
3260 
3261 	/* Mask events preventing LPI generation */
3262 	REG_WR(cb, MISC_REG_CPMU_LP_MASK_EXT_P0 + (params->port << 2), 0xfc20);
3263 
3264 	if (modes & SHMEM_EEE_10G_ADV) {
3265 		ELINK_DEBUG_P0(cb, "Advertise 10GBase-T EEE\n");
3266 		val |= 0x8;
3267 	}
3268 	if (modes & SHMEM_EEE_1G_ADV) {
3269 		ELINK_DEBUG_P0(cb, "Advertise 1GBase-T EEE\n");
3270 		val |= 0x4;
3271 	}
3272 
3273 	elink_cl45_write(cb, phy, MDIO_AN_DEVAD, MDIO_AN_REG_EEE_ADV, val);
3274 
3275 	vars->eee_status &= ~SHMEM_EEE_ADV_STATUS_MASK;
3276 	vars->eee_status |= (modes << SHMEM_EEE_ADV_STATUS_SHIFT);
3277 
3278 	return ELINK_STATUS_OK;
3279 }
3280 
elink_update_mng_eee(struct elink_params * params,u32 eee_status)3281 static void elink_update_mng_eee(struct elink_params *params, u32 eee_status)
3282 {
3283 	struct elink_dev *cb = params->cb;
3284 
3285 	if (elink_eee_has_cap(params))
3286 		REG_WR(cb, params->shmem2_base +
3287 		       OFFSETOF(struct shmem2_region,
3288 				eee_status[params->port]), eee_status);
3289 }
3290 
elink_eee_an_resolve(struct elink_phy * phy,struct elink_params * params,struct elink_vars * vars)3291 static void elink_eee_an_resolve(struct elink_phy *phy,
3292 				  struct elink_params *params,
3293 				  struct elink_vars *vars)
3294 {
3295 	struct elink_dev *cb = params->cb;
3296 	u16 adv = 0, lp = 0;
3297 	u32 lp_adv = 0;
3298 	u8 neg = 0;
3299 
3300 	elink_cl45_read(cb, phy, MDIO_AN_DEVAD, MDIO_AN_REG_EEE_ADV, &adv);
3301 	elink_cl45_read(cb, phy, MDIO_AN_DEVAD, MDIO_AN_REG_LP_EEE_ADV, &lp);
3302 
3303 	if (lp & 0x2) {
3304 		lp_adv |= SHMEM_EEE_100M_ADV;
3305 		if (adv & 0x2) {
3306 			if (vars->line_speed == ELINK_SPEED_100)
3307 				neg = 1;
3308 			ELINK_DEBUG_P0(cb, "EEE negotiated - 100M\n");
3309 		}
3310 	}
3311 	if (lp & 0x14) {
3312 		lp_adv |= SHMEM_EEE_1G_ADV;
3313 		if (adv & 0x14) {
3314 			if (vars->line_speed == ELINK_SPEED_1000)
3315 				neg = 1;
3316 			ELINK_DEBUG_P0(cb, "EEE negotiated - 1G\n");
3317 		}
3318 	}
3319 	if (lp & 0x68) {
3320 		lp_adv |= SHMEM_EEE_10G_ADV;
3321 		if (adv & 0x68) {
3322 			if (vars->line_speed == ELINK_SPEED_10000)
3323 				neg = 1;
3324 			ELINK_DEBUG_P0(cb, "EEE negotiated - 10G\n");
3325 		}
3326 	}
3327 
3328 	vars->eee_status &= ~SHMEM_EEE_LP_ADV_STATUS_MASK;
3329 	vars->eee_status |= (lp_adv << SHMEM_EEE_LP_ADV_STATUS_SHIFT);
3330 
3331 	if (neg) {
3332 		ELINK_DEBUG_P0(cb, "EEE is active\n");
3333 		vars->eee_status |= SHMEM_EEE_ACTIVE_BIT;
3334 	}
3335 }
3336 
3337 /******************************************************************/
3338 /*			BSC access functions from E3	          */
3339 /******************************************************************/
elink_bsc_module_sel(struct elink_params * params)3340 static void elink_bsc_module_sel(struct elink_params *params)
3341 {
3342 	int idx;
3343 	u32 board_cfg, sfp_ctrl;
3344 	u32 i2c_pins[I2C_SWITCH_WIDTH], i2c_val[I2C_SWITCH_WIDTH];
3345 	struct elink_dev *cb = params->cb;
3346 	u8 port = params->port;
3347 	/* Read I2C output PINs */
3348 	board_cfg = REG_RD(cb, params->shmem_base +
3349 			   OFFSETOF(struct shmem_region,
3350 				    dev_info.shared_hw_config.board));
3351 	i2c_pins[I2C_BSC0] = board_cfg & SHARED_HW_CFG_E3_I2C_MUX0_MASK;
3352 	i2c_pins[I2C_BSC1] = (board_cfg & SHARED_HW_CFG_E3_I2C_MUX1_MASK) >>
3353 			SHARED_HW_CFG_E3_I2C_MUX1_SHIFT;
3354 
3355 	/* Read I2C output value */
3356 	sfp_ctrl = REG_RD(cb, params->shmem_base +
3357 			  OFFSETOF(struct shmem_region,
3358 				 dev_info.port_hw_config[port].e3_cmn_pin_cfg));
3359 	i2c_val[I2C_BSC0] = (sfp_ctrl & PORT_HW_CFG_E3_I2C_MUX0_MASK) > 0;
3360 	i2c_val[I2C_BSC1] = (sfp_ctrl & PORT_HW_CFG_E3_I2C_MUX1_MASK) > 0;
3361 	ELINK_DEBUG_P0(cb, "Setting BSC switch\n");
3362 	for (idx = 0; idx < I2C_SWITCH_WIDTH; idx++)
3363 		elink_set_cfg_pin(cb, i2c_pins[idx], i2c_val[idx]);
3364 }
3365 
elink_bsc_read(struct elink_params * params,struct elink_dev * cb,u8 sl_devid,u16 sl_addr,u8 lc_addr,u8 xfer_cnt,u32 * data_array)3366 static elink_status_t elink_bsc_read(struct elink_params *params,
3367 			  struct elink_dev *cb,
3368 			  u8 sl_devid,
3369 			  u16 sl_addr,
3370 			  u8 lc_addr,
3371 			  u8 xfer_cnt,
3372 			  u32 *data_array)
3373 {
3374 	u32 val, i;
3375 	elink_status_t rc = ELINK_STATUS_OK;
3376 
3377 	if (xfer_cnt > 16) {
3378 		ELINK_DEBUG_P1(cb, "invalid xfer_cnt %d. Max is 16 bytes\n",
3379 					xfer_cnt);
3380 		return ELINK_STATUS_ERROR;
3381 	}
3382 	if (params)
3383 		elink_bsc_module_sel(params);
3384 
3385 	xfer_cnt = 16 - lc_addr;
3386 
3387 	/* Enable the engine */
3388 	val = REG_RD(cb, MCP_REG_MCPR_IMC_COMMAND);
3389 	val |= MCPR_IMC_COMMAND_ENABLE;
3390 	REG_WR(cb, MCP_REG_MCPR_IMC_COMMAND, val);
3391 
3392 	/* Program slave device ID */
3393 	val = (sl_devid << 16) | sl_addr;
3394 	REG_WR(cb, MCP_REG_MCPR_IMC_SLAVE_CONTROL, val);
3395 
3396 	/* Start xfer with 0 byte to update the address pointer ???*/
3397 	val = (MCPR_IMC_COMMAND_ENABLE) |
3398 	      (MCPR_IMC_COMMAND_WRITE_OP <<
3399 		MCPR_IMC_COMMAND_OPERATION_BITSHIFT) |
3400 		(lc_addr << MCPR_IMC_COMMAND_TRANSFER_ADDRESS_BITSHIFT) | (0);
3401 	REG_WR(cb, MCP_REG_MCPR_IMC_COMMAND, val);
3402 
3403 	/* Poll for completion */
3404 	i = 0;
3405 	val = REG_RD(cb, MCP_REG_MCPR_IMC_COMMAND);
3406 	while (((val >> MCPR_IMC_COMMAND_IMC_STATUS_BITSHIFT) & 0x3) != 1) {
3407 		USLEEP(cb, 10);
3408 		val = REG_RD(cb, MCP_REG_MCPR_IMC_COMMAND);
3409 		if (i++ > 1000) {
3410 			ELINK_DEBUG_P1(cb, "wr 0 byte timed out after %d try\n",
3411 								i);
3412 			rc = ELINK_STATUS_TIMEOUT;
3413 			break;
3414 		}
3415 	}
3416 	if (rc == ELINK_STATUS_TIMEOUT)
3417 		return rc;
3418 
3419 	/* Start xfer with read op */
3420 	val = (MCPR_IMC_COMMAND_ENABLE) |
3421 		(MCPR_IMC_COMMAND_READ_OP <<
3422 		MCPR_IMC_COMMAND_OPERATION_BITSHIFT) |
3423 		(lc_addr << MCPR_IMC_COMMAND_TRANSFER_ADDRESS_BITSHIFT) |
3424 		  (xfer_cnt);
3425 	REG_WR(cb, MCP_REG_MCPR_IMC_COMMAND, val);
3426 
3427 	/* Poll for completion */
3428 	i = 0;
3429 	val = REG_RD(cb, MCP_REG_MCPR_IMC_COMMAND);
3430 	while (((val >> MCPR_IMC_COMMAND_IMC_STATUS_BITSHIFT) & 0x3) != 1) {
3431 		USLEEP(cb, 10);
3432 		val = REG_RD(cb, MCP_REG_MCPR_IMC_COMMAND);
3433 		if (i++ > 1000) {
3434 			ELINK_DEBUG_P1(cb, "rd op timed out after %d try\n", i);
3435 			rc = ELINK_STATUS_TIMEOUT;
3436 			break;
3437 		}
3438 	}
3439 	if (rc == ELINK_STATUS_TIMEOUT)
3440 		return rc;
3441 
3442 	for (i = (lc_addr >> 2); i < 4; i++) {
3443 		data_array[i] = REG_RD(cb, (MCP_REG_MCPR_IMC_DATAREG0 + i*4));
3444 #ifdef BIG_ENDIAN
3445 		data_array[i] = ((data_array[i] & 0x000000ff) << 24) |
3446 				((data_array[i] & 0x0000ff00) << 8) |
3447 				((data_array[i] & 0x00ff0000) >> 8) |
3448 				((data_array[i] & 0xff000000) >> 24);
3449 #endif
3450 	}
3451 	return rc;
3452 }
3453 
3454 #endif /* EXCLUDE_WARPCORE */
3455 #endif /* EXCLUDE_NON_COMMON_INIT */
3456 #if !defined(EXCLUDE_NON_COMMON_INIT) || defined(INCLUDE_WARPCORE_UC_LOAD)
elink_cl45_read_or_write(struct elink_dev * cb,struct elink_phy * phy,u8 devad,u16 reg,u16 or_val)3457 static void elink_cl45_read_or_write(struct elink_dev *cb, struct elink_phy *phy,
3458 				     u8 devad, u16 reg, u16 or_val)
3459 {
3460 	u16 val;
3461 	elink_cl45_read(cb, phy, devad, reg, &val);
3462 	elink_cl45_write(cb, phy, devad, reg, val | or_val);
3463 }
3464 
elink_cl45_read_and_write(struct elink_dev * cb,struct elink_phy * phy,u8 devad,u16 reg,u16 and_val)3465 static void elink_cl45_read_and_write(struct elink_dev *cb,
3466 				      struct elink_phy *phy,
3467 				      u8 devad, u16 reg, u16 and_val)
3468 {
3469 	u16 val;
3470 	elink_cl45_read(cb, phy, devad, reg, &val);
3471 	elink_cl45_write(cb, phy, devad, reg, val & and_val);
3472 }
3473 #endif
3474 
3475 #ifdef ELINK_ENHANCEMENTS
elink_phy_read(struct elink_params * params,u8 phy_addr,u8 devad,u16 reg,u16 * ret_val)3476 elink_status_t elink_phy_read(struct elink_params *params, u8 phy_addr,
3477 		   u8 devad, u16 reg, u16 *ret_val)
3478 {
3479 	u8 phy_index;
3480 	/* Probe for the phy according to the given phy_addr, and execute
3481 	 * the read request on it
3482 	 */
3483 	for (phy_index = 0; phy_index < params->num_phys; phy_index++) {
3484 		if (params->phy[phy_index].addr == phy_addr) {
3485 			return elink_cl45_read(params->cb,
3486 					       &params->phy[phy_index], devad,
3487 					       reg, ret_val);
3488 		}
3489 	}
3490 	return ELINK_STATUS_ERROR;
3491 }
3492 
elink_phy_write(struct elink_params * params,u8 phy_addr,u8 devad,u16 reg,u16 val)3493 elink_status_t elink_phy_write(struct elink_params *params, u8 phy_addr,
3494 		    u8 devad, u16 reg, u16 val)
3495 {
3496 	u8 phy_index;
3497 	/* Probe for the phy according to the given phy_addr, and execute
3498 	 * the write request on it
3499 	 */
3500 	for (phy_index = 0; phy_index < params->num_phys; phy_index++) {
3501 		if (params->phy[phy_index].addr == phy_addr) {
3502 			return elink_cl45_write(params->cb,
3503 						&params->phy[phy_index], devad,
3504 						reg, val);
3505 		}
3506 	}
3507 	return ELINK_STATUS_ERROR;
3508 }
3509 #endif // ELINK_ENHANCEMENTS
3510 
3511 #if (!defined EXCLUDE_NON_COMMON_INIT) || (!defined EXCLUDE_WARPCORE)
elink_get_warpcore_lane(struct elink_phy * phy,struct elink_params * params)3512 static u8 elink_get_warpcore_lane(struct elink_phy *phy,
3513 				  struct elink_params *params)
3514 {
3515 	u8 lane = 0;
3516 #ifndef EXCLUDE_WARPCORE
3517 	struct elink_dev *cb = params->cb;
3518 	u32 path_swap, path_swap_ovr;
3519 	u8 path, port;
3520 
3521 	path = PATH_ID(cb);
3522 	port = params->port;
3523 
3524 	if (elink_is_4_port_mode(cb)) {
3525 		u32 port_swap, port_swap_ovr;
3526 
3527 		/* Figure out path swap value */
3528 		path_swap_ovr = REG_RD(cb, MISC_REG_FOUR_PORT_PATH_SWAP_OVWR);
3529 		if (path_swap_ovr & 0x1)
3530 			path_swap = (path_swap_ovr & 0x2);
3531 		else
3532 			path_swap = REG_RD(cb, MISC_REG_FOUR_PORT_PATH_SWAP);
3533 
3534 		if (path_swap)
3535 			path = path ^ 1;
3536 
3537 		/* Figure out port swap value */
3538 		port_swap_ovr = REG_RD(cb, MISC_REG_FOUR_PORT_PORT_SWAP_OVWR);
3539 		if (port_swap_ovr & 0x1)
3540 			port_swap = (port_swap_ovr & 0x2);
3541 		else
3542 			port_swap = REG_RD(cb, MISC_REG_FOUR_PORT_PORT_SWAP);
3543 
3544 		if (port_swap)
3545 			port = port ^ 1;
3546 
3547 		lane = (port<<1) + path;
3548 	} else { /* Two port mode - no port swap */
3549 
3550 		/* Figure out path swap value */
3551 		path_swap_ovr =
3552 			REG_RD(cb, MISC_REG_TWO_PORT_PATH_SWAP_OVWR);
3553 		if (path_swap_ovr & 0x1) {
3554 			path_swap = (path_swap_ovr & 0x2);
3555 		} else {
3556 			path_swap =
3557 				REG_RD(cb, MISC_REG_TWO_PORT_PATH_SWAP);
3558 		}
3559 		if (path_swap)
3560 			path = path ^ 1;
3561 
3562 		lane = path << 1 ;
3563 	}
3564 #endif /* #ifndef EXCLUDE_WARPCORE */
3565 	return lane;
3566 }
3567 
3568 
elink_set_aer_mmd(struct elink_params * params,struct elink_phy * phy)3569 static void elink_set_aer_mmd(struct elink_params *params,
3570 			      struct elink_phy *phy)
3571 {
3572 	u32 ser_lane;
3573 	u16 offset, aer_val;
3574 	struct elink_dev *cb = params->cb;
3575 	ser_lane = ((params->lane_config &
3576 		     PORT_HW_CFG_LANE_SWAP_CFG_MASTER_MASK) >>
3577 		     PORT_HW_CFG_LANE_SWAP_CFG_MASTER_SHIFT);
3578 
3579 	offset = (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT) ?
3580 		(phy->addr + ser_lane) : 0;
3581 
3582 	if (ELINK_USES_WARPCORE(params->chip_id)) {
3583 		aer_val = elink_get_warpcore_lane(phy, params);
3584 		/* In Dual-lane mode, two lanes are joined together,
3585 		 * so in order to configure them, the AER broadcast method is
3586 		 * used here.
3587 		 * 0x200 is the broadcast address for lanes 0,1
3588 		 * 0x201 is the broadcast address for lanes 2,3
3589 		 */
3590 		if (phy->flags & ELINK_FLAGS_WC_DUAL_MODE)
3591 			aer_val = (aer_val >> 1) | 0x200;
3592 	} else if (CHIP_IS_E2(params->chip_id))
3593 		aer_val = 0x3800 + offset - 1;
3594 	else
3595 		aer_val = 0x3800 + offset;
3596 
3597 	CL22_WR_OVER_CL45(cb, phy, MDIO_REG_BANK_AER_BLOCK,
3598 			  MDIO_AER_BLOCK_AER_REG, aer_val);
3599 
3600 }
3601 #endif
3602 #ifndef EXCLUDE_SERDES
3603 
3604 /******************************************************************/
3605 /*			Internal phy section			  */
3606 /******************************************************************/
3607 
elink_set_serdes_access(struct elink_dev * cb,u8 port)3608 static void elink_set_serdes_access(struct elink_dev *cb, u8 port)
3609 {
3610 	u32 emac_base = (port) ? GRCBASE_EMAC1 : GRCBASE_EMAC0;
3611 
3612 	/* Set Clause 22 */
3613 	REG_WR(cb, NIG_REG_SERDES0_CTRL_MD_ST + port*0x10, 1);
3614 	REG_WR(cb, emac_base + EMAC_REG_EMAC_MDIO_COMM, 0x245f8000);
3615 	USLEEP(cb, 500);
3616 	REG_WR(cb, emac_base + EMAC_REG_EMAC_MDIO_COMM, 0x245d000f);
3617 	USLEEP(cb, 500);
3618 	 /* Set Clause 45 */
3619 	REG_WR(cb, NIG_REG_SERDES0_CTRL_MD_ST + port*0x10, 0);
3620 }
3621 
elink_serdes_deassert(struct elink_dev * cb,u8 port)3622 static void elink_serdes_deassert(struct elink_dev *cb, u8 port)
3623 {
3624 	u32 val;
3625 
3626 	ELINK_DEBUG_P0(cb, "elink_serdes_deassert\n");
3627 
3628 	val = ELINK_SERDES_RESET_BITS << (port*16);
3629 
3630 	/* Reset and unreset the SerDes/XGXS */
3631 	REG_WR(cb, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_3_CLEAR, val);
3632 	USLEEP(cb, 500);
3633 	REG_WR(cb, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_3_SET, val);
3634 
3635 	elink_set_serdes_access(cb, port);
3636 
3637 	REG_WR(cb, NIG_REG_SERDES0_CTRL_MD_DEVAD + port*0x10,
3638 	       ELINK_DEFAULT_PHY_DEV_ADDR);
3639 }
3640 #endif /* #ifndef EXCLUDE_SERDES */
3641 
3642 #ifndef EXCLUDE_NON_COMMON_INIT
3643 #ifndef EXCLUDE_XGXS
elink_xgxs_specific_func(struct elink_phy * phy,struct elink_params * params,u32 action)3644 static void elink_xgxs_specific_func(struct elink_phy *phy,
3645 				     struct elink_params *params,
3646 				     u32 action)
3647 {
3648 	struct elink_dev *cb = params->cb;
3649 	switch (action) {
3650 	case ELINK_PHY_INIT:
3651 		/* Set correct devad */
3652 		REG_WR(cb, NIG_REG_XGXS0_CTRL_MD_ST + params->port*0x18, 0);
3653 		REG_WR(cb, NIG_REG_XGXS0_CTRL_MD_DEVAD + params->port*0x18,
3654 		       phy->def_md_devad);
3655 		break;
3656 	}
3657 }
3658 
elink_xgxs_deassert(struct elink_params * params)3659 static void elink_xgxs_deassert(struct elink_params *params)
3660 {
3661 	struct elink_dev *cb = params->cb;
3662 	u8 port;
3663 	u32 val;
3664 	ELINK_DEBUG_P0(cb, "elink_xgxs_deassert\n");
3665 	port = params->port;
3666 
3667 	val = ELINK_XGXS_RESET_BITS << (port*16);
3668 
3669 	/* Reset and unreset the SerDes/XGXS */
3670 	REG_WR(cb, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_3_CLEAR, val);
3671 	USLEEP(cb, 500);
3672 	REG_WR(cb, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_3_SET, val);
3673 	elink_xgxs_specific_func(&params->phy[ELINK_INT_PHY], params,
3674 				 ELINK_PHY_INIT);
3675 }
3676 #endif // EXCLUDE_XGXS
3677 
elink_calc_ieee_aneg_adv(struct elink_phy * phy,struct elink_params * params,u16 * ieee_fc)3678 static void elink_calc_ieee_aneg_adv(struct elink_phy *phy,
3679 				     struct elink_params *params, u16 *ieee_fc)
3680 {
3681 #ifdef ELINK_DEBUG
3682 	struct elink_dev *cb = params->cb;
3683 #endif
3684 	*ieee_fc = MDIO_COMBO_IEEE0_AUTO_NEG_ADV_FULL_DUPLEX;
3685 	/* Resolve pause mode and advertisement Please refer to Table
3686 	 * 28B-3 of the 802.3ab-1999 spec
3687 	 */
3688 
3689 	switch (phy->req_flow_ctrl) {
3690 	case ELINK_FLOW_CTRL_AUTO:
3691 		switch (params->req_fc_auto_adv) {
3692 		case ELINK_FLOW_CTRL_BOTH:
3693 			*ieee_fc |= MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH;
3694 			break;
3695 		case ELINK_FLOW_CTRL_RX:
3696 		case ELINK_FLOW_CTRL_TX:
3697 			*ieee_fc |=
3698 				MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_ASYMMETRIC;
3699 			break;
3700 		default:
3701 			break;
3702 		}
3703 		break;
3704 	case ELINK_FLOW_CTRL_TX:
3705 		*ieee_fc |= MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_ASYMMETRIC;
3706 		break;
3707 
3708 	case ELINK_FLOW_CTRL_RX:
3709 	case ELINK_FLOW_CTRL_BOTH:
3710 		*ieee_fc |= MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH;
3711 		break;
3712 
3713 	case ELINK_FLOW_CTRL_NONE:
3714 	default:
3715 		*ieee_fc |= MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_NONE;
3716 		break;
3717 	}
3718 	ELINK_DEBUG_P1(cb, "ieee_fc = 0x%x\n", *ieee_fc);
3719 }
3720 #endif /* #ifndef EXCLUDE_NON_COMMON_INIT */
3721 
set_phy_vars(struct elink_params * params,struct elink_vars * vars)3722 static void set_phy_vars(struct elink_params *params,
3723 			 struct elink_vars *vars)
3724 {
3725 #ifdef ELINK_DEBUG
3726 	struct elink_dev *cb = params->cb;
3727 #endif
3728 	u8 actual_phy_idx, phy_index, link_cfg_idx;
3729 	u8 phy_config_swapped = params->multi_phy_config &
3730 			PORT_HW_CFG_PHY_SWAPPED_ENABLED;
3731 	for (phy_index = ELINK_INT_PHY; phy_index < params->num_phys;
3732 	      phy_index++) {
3733 		link_cfg_idx = ELINK_LINK_CONFIG_IDX(phy_index);
3734 		actual_phy_idx = phy_index;
3735 		if (phy_config_swapped) {
3736 			if (phy_index == ELINK_EXT_PHY1)
3737 				actual_phy_idx = ELINK_EXT_PHY2;
3738 			else if (phy_index == ELINK_EXT_PHY2)
3739 				actual_phy_idx = ELINK_EXT_PHY1;
3740 		}
3741 		params->phy[actual_phy_idx].req_flow_ctrl =
3742 			params->req_flow_ctrl[link_cfg_idx];
3743 
3744 		params->phy[actual_phy_idx].req_line_speed =
3745 			params->req_line_speed[link_cfg_idx];
3746 
3747 		params->phy[actual_phy_idx].speed_cap_mask =
3748 			params->speed_cap_mask[link_cfg_idx];
3749 
3750 		params->phy[actual_phy_idx].req_duplex =
3751 			params->req_duplex[link_cfg_idx];
3752 
3753 		if (params->req_line_speed[link_cfg_idx] ==
3754 		    ELINK_SPEED_AUTO_NEG)
3755 			vars->link_status |= LINK_STATUS_AUTO_NEGOTIATE_ENABLED;
3756 
3757 		ELINK_DEBUG_P3(cb, "req_flow_ctrl %x, req_line_speed %x,"
3758 			   " speed_cap_mask %x\n",
3759 			   params->phy[actual_phy_idx].req_flow_ctrl,
3760 			   params->phy[actual_phy_idx].req_line_speed,
3761 			   params->phy[actual_phy_idx].speed_cap_mask);
3762 	}
3763 }
3764 
3765 #ifndef EXCLUDE_NON_COMMON_INIT
elink_ext_phy_set_pause(struct elink_params * params,struct elink_phy * phy,struct elink_vars * vars)3766 static void elink_ext_phy_set_pause(struct elink_params *params,
3767 				    struct elink_phy *phy,
3768 				    struct elink_vars *vars)
3769 {
3770 	u16 val;
3771 	struct elink_dev *cb = params->cb;
3772 	/* Read modify write pause advertizing */
3773 	elink_cl45_read(cb, phy, MDIO_AN_DEVAD, MDIO_AN_REG_ADV_PAUSE, &val);
3774 
3775 	val &= ~MDIO_AN_REG_ADV_PAUSE_BOTH;
3776 
3777 	/* Please refer to Table 28B-3 of 802.3ab-1999 spec. */
3778 	elink_calc_ieee_aneg_adv(phy, params, &vars->ieee_fc);
3779 	if ((vars->ieee_fc &
3780 	    MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_ASYMMETRIC) ==
3781 	    MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_ASYMMETRIC) {
3782 		val |= MDIO_AN_REG_ADV_PAUSE_ASYMMETRIC;
3783 	}
3784 	if ((vars->ieee_fc &
3785 	    MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH) ==
3786 	    MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH) {
3787 		val |= MDIO_AN_REG_ADV_PAUSE_PAUSE;
3788 	}
3789 	ELINK_DEBUG_P1(cb, "Ext phy AN advertize 0x%x\n", val);
3790 	elink_cl45_write(cb, phy, MDIO_AN_DEVAD, MDIO_AN_REG_ADV_PAUSE, val);
3791 }
3792 
elink_pause_resolve(struct elink_vars * vars,u32 pause_result)3793 static void elink_pause_resolve(struct elink_vars *vars, u32 pause_result)
3794 {						/*  LD	    LP	 */
3795 	switch (pause_result) {			/* ASYM P ASYM P */
3796 	case 0xb:				/*   1  0   1  1 */
3797 		vars->flow_ctrl = ELINK_FLOW_CTRL_TX;
3798 		break;
3799 
3800 	case 0xe:				/*   1  1   1  0 */
3801 		vars->flow_ctrl = ELINK_FLOW_CTRL_RX;
3802 		break;
3803 
3804 	case 0x5:				/*   0  1   0  1 */
3805 	case 0x7:				/*   0  1   1  1 */
3806 	case 0xd:				/*   1  1   0  1 */
3807 	case 0xf:				/*   1  1   1  1 */
3808 		vars->flow_ctrl = ELINK_FLOW_CTRL_BOTH;
3809 		break;
3810 
3811 	default:
3812 		break;
3813 	}
3814 	if (pause_result & (1<<0))
3815 		vars->link_status |= LINK_STATUS_LINK_PARTNER_SYMMETRIC_PAUSE;
3816 	if (pause_result & (1<<1))
3817 		vars->link_status |= LINK_STATUS_LINK_PARTNER_ASYMMETRIC_PAUSE;
3818 
3819 }
3820 
elink_ext_phy_update_adv_fc(struct elink_phy * phy,struct elink_params * params,struct elink_vars * vars)3821 static void elink_ext_phy_update_adv_fc(struct elink_phy *phy,
3822 					struct elink_params *params,
3823 					struct elink_vars *vars)
3824 {
3825 	u16 ld_pause;		/* local */
3826 	u16 lp_pause;		/* link partner */
3827 	u16 pause_result;
3828 	struct elink_dev *cb = params->cb;
3829 	if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM54618SE) {
3830 #ifndef EXCLUDE_BCM54618SE
3831 		elink_cl22_read(cb, phy, 0x4, &ld_pause);
3832 		elink_cl22_read(cb, phy, 0x5, &lp_pause);
3833 #endif
3834 	} else if (CHIP_IS_E3(params->chip_id) &&
3835 		ELINK_SINGLE_MEDIA_DIRECT(params)) {
3836 		u8 lane = elink_get_warpcore_lane(phy, params);
3837 		u16 gp_status, gp_mask;
3838 		elink_cl45_read(cb, phy,
3839 				MDIO_AN_DEVAD, MDIO_WC_REG_GP2_STATUS_GP_2_4,
3840 				&gp_status);
3841 		gp_mask = (MDIO_WC_REG_GP2_STATUS_GP_2_4_CL73_AN_CMPL |
3842 			   MDIO_WC_REG_GP2_STATUS_GP_2_4_CL37_LP_AN_CAP) <<
3843 			lane;
3844 		if ((gp_status & gp_mask) == gp_mask) {
3845 			elink_cl45_read(cb, phy, MDIO_AN_DEVAD,
3846 					MDIO_AN_REG_ADV_PAUSE, &ld_pause);
3847 			elink_cl45_read(cb, phy, MDIO_AN_DEVAD,
3848 					MDIO_AN_REG_LP_AUTO_NEG, &lp_pause);
3849 		} else {
3850 			elink_cl45_read(cb, phy, MDIO_AN_DEVAD,
3851 					MDIO_AN_REG_CL37_FC_LD, &ld_pause);
3852 			elink_cl45_read(cb, phy, MDIO_AN_DEVAD,
3853 					MDIO_AN_REG_CL37_FC_LP, &lp_pause);
3854 			ld_pause = ((ld_pause &
3855 				     MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH)
3856 				    << 3);
3857 			lp_pause = ((lp_pause &
3858 				     MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH)
3859 				    << 3);
3860 		}
3861 	} else {
3862 		elink_cl45_read(cb, phy,
3863 				MDIO_AN_DEVAD,
3864 				MDIO_AN_REG_ADV_PAUSE, &ld_pause);
3865 		elink_cl45_read(cb, phy,
3866 				MDIO_AN_DEVAD,
3867 				MDIO_AN_REG_LP_AUTO_NEG, &lp_pause);
3868 	}
3869 	pause_result = (ld_pause &
3870 			MDIO_AN_REG_ADV_PAUSE_MASK) >> 8;
3871 	pause_result |= (lp_pause &
3872 			 MDIO_AN_REG_ADV_PAUSE_MASK) >> 10;
3873 	ELINK_DEBUG_P1(cb, "Ext PHY pause result 0x%x\n", pause_result);
3874 	elink_pause_resolve(vars, pause_result);
3875 
3876 }
3877 
elink_ext_phy_resolve_fc(struct elink_phy * phy,struct elink_params * params,struct elink_vars * vars)3878 static u8 elink_ext_phy_resolve_fc(struct elink_phy *phy,
3879 				   struct elink_params *params,
3880 				   struct elink_vars *vars)
3881 {
3882 	u8 ret = 0;
3883 	vars->flow_ctrl = ELINK_FLOW_CTRL_NONE;
3884 	if (phy->req_flow_ctrl != ELINK_FLOW_CTRL_AUTO) {
3885 		/* Update the advertised flow-controled of LD/LP in AN */
3886 		if (phy->req_line_speed == ELINK_SPEED_AUTO_NEG)
3887 			elink_ext_phy_update_adv_fc(phy, params, vars);
3888 		/* But set the flow-control result as the requested one */
3889 		vars->flow_ctrl = phy->req_flow_ctrl;
3890 	} else if (phy->req_line_speed != ELINK_SPEED_AUTO_NEG)
3891 		vars->flow_ctrl = params->req_fc_auto_adv;
3892 	else if (vars->link_status & LINK_STATUS_AUTO_NEGOTIATE_COMPLETE) {
3893 		ret = 1;
3894 		elink_ext_phy_update_adv_fc(phy, params, vars);
3895 	}
3896 	return ret;
3897 }
3898 #endif // EXCLUDE_NON_COMMON_INIT
3899 /******************************************************************/
3900 /*			Warpcore section			  */
3901 /******************************************************************/
3902 /* The init_internal_warpcore should mirror the xgxs,
3903  * i.e. reset the lane (if needed), set aer for the
3904  * init configuration, and set/clear SGMII flag. Internal
3905  * phy init is done purely in phy_init stage.
3906  */
3907 #define WC_TX_DRIVER(post2, idriver, ipre) \
3908 	((post2 << MDIO_WC_REG_TX0_TX_DRIVER_POST2_COEFF_OFFSET) | \
3909 	 (idriver << MDIO_WC_REG_TX0_TX_DRIVER_IDRIVER_OFFSET) | \
3910 	 (ipre << MDIO_WC_REG_TX0_TX_DRIVER_IPRE_DRIVER_OFFSET))
3911 
3912 #define WC_TX_FIR(post, main, pre) \
3913 	((post << MDIO_WC_REG_TX_FIR_TAP_POST_TAP_OFFSET) | \
3914 	 (main << MDIO_WC_REG_TX_FIR_TAP_MAIN_TAP_OFFSET) | \
3915 	 (pre << MDIO_WC_REG_TX_FIR_TAP_PRE_TAP_OFFSET))
3916 
3917 #ifndef EXCLUDE_WARPCORE
3918 #ifndef EXCLUDE_NON_COMMON_INIT
elink_update_link_attr(struct elink_params * params,u32 link_attr)3919 static void elink_update_link_attr(struct elink_params *params, u32 link_attr)
3920 {
3921 	struct elink_dev *cb = params->cb;
3922 
3923 	if (SHMEM2_HAS(cb, params->shmem2_base, link_attr_sync))
3924 		REG_WR(cb, params->shmem2_base +
3925 		       OFFSETOF(struct shmem2_region,
3926 				link_attr_sync[params->port]), link_attr);
3927 }
3928 
elink_warpcore_enable_AN_KR2(struct elink_phy * phy,struct elink_params * params,struct elink_vars * vars)3929 static void elink_warpcore_enable_AN_KR2(struct elink_phy *phy,
3930 					 struct elink_params *params,
3931 					 struct elink_vars *vars)
3932 {
3933 	struct elink_dev *cb = params->cb;
3934 	u16 i;
3935 	static struct elink_reg_set reg_set[] = {
3936 		/* Step 1 - Program the TX/RX alignment markers */
3937 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL5, 0xa157},
3938 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL7, 0xcbe2},
3939 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL6, 0x7537},
3940 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL9, 0xa157},
3941 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_RX_CTRL11, 0xcbe2},
3942 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_RX_CTRL10, 0x7537},
3943 		/* Step 2 - Configure the NP registers */
3944 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL73_USERB0_CTRL, 0x000a},
3945 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL73_BAM_CTRL1, 0x6400},
3946 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL73_BAM_CTRL3, 0x0620},
3947 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL73_BAM_CODE_FIELD, 0x0157},
3948 		{MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_OUI1, 0x6464},
3949 		{MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_OUI2, 0x3150},
3950 		{MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_OUI3, 0x3150},
3951 		{MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_LD_BAM_CODE, 0x0157},
3952 		{MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_LD_UD_CODE, 0x0620}
3953 	};
3954 	ELINK_DEBUG_P0(cb, "Enabling 20G-KR2\n");
3955 
3956 	elink_cl45_read_or_write(cb, phy, MDIO_WC_DEVAD,
3957 				 MDIO_WC_REG_CL49_USERB0_CTRL, (3<<6));
3958 
3959 	for (i = 0; i < ARRAY_SIZE(reg_set); i++)
3960 		elink_cl45_write(cb, phy, reg_set[i].devad, reg_set[i].reg,
3961 				 reg_set[i].val);
3962 
3963 	/* Start KR2 work-around timer which handles BCM8073 link-parner */
3964 	params->link_attr_sync |= LINK_ATTR_SYNC_KR2_ENABLE;
3965 	elink_update_link_attr(params, params->link_attr_sync);
3966 }
3967 
elink_disable_kr2(struct elink_params * params,struct elink_vars * vars,struct elink_phy * phy)3968 static void elink_disable_kr2(struct elink_params *params,
3969 			      struct elink_vars *vars,
3970 			      struct elink_phy *phy)
3971 {
3972 	struct elink_dev *cb = params->cb;
3973 	int i;
3974 	static struct elink_reg_set reg_set[] = {
3975 		/* Step 1 - Program the TX/RX alignment markers */
3976 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL5, 0x7690},
3977 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL7, 0xe647},
3978 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL6, 0xc4f0},
3979 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL9, 0x7690},
3980 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_RX_CTRL11, 0xe647},
3981 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_RX_CTRL10, 0xc4f0},
3982 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL73_USERB0_CTRL, 0x000c},
3983 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL73_BAM_CTRL1, 0x6000},
3984 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL73_BAM_CTRL3, 0x0000},
3985 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL73_BAM_CODE_FIELD, 0x0002},
3986 		{MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_OUI1, 0x0000},
3987 		{MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_OUI2, 0x0af7},
3988 		{MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_OUI3, 0x0af7},
3989 		{MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_LD_BAM_CODE, 0x0002},
3990 		{MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_LD_UD_CODE, 0x0000}
3991 	};
3992 	ELINK_DEBUG_P0(cb, "Disabling 20G-KR2\n");
3993 
3994 	for (i = 0; i < ARRAY_SIZE(reg_set); i++)
3995 		elink_cl45_write(cb, phy, reg_set[i].devad, reg_set[i].reg,
3996 				 reg_set[i].val);
3997 	params->link_attr_sync &= ~LINK_ATTR_SYNC_KR2_ENABLE;
3998 	elink_update_link_attr(params, params->link_attr_sync);
3999 
4000 	vars->check_kr2_recovery_cnt = ELINK_CHECK_KR2_RECOVERY_CNT;
4001 }
4002 
elink_warpcore_set_lpi_passthrough(struct elink_phy * phy,struct elink_params * params)4003 static void elink_warpcore_set_lpi_passthrough(struct elink_phy *phy,
4004 					       struct elink_params *params)
4005 {
4006 	struct elink_dev *cb = params->cb;
4007 
4008 	ELINK_DEBUG_P0(cb, "Configure WC for LPI pass through\n");
4009 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4010 			 MDIO_WC_REG_EEE_COMBO_CONTROL0, 0x7c);
4011 	elink_cl45_read_or_write(cb, phy, MDIO_WC_DEVAD,
4012 				 MDIO_WC_REG_DIGITAL4_MISC5, 0xc000);
4013 }
4014 
elink_warpcore_restart_AN_KR(struct elink_phy * phy,struct elink_params * params)4015 static void elink_warpcore_restart_AN_KR(struct elink_phy *phy,
4016 					 struct elink_params *params)
4017 {
4018 	/* Restart autoneg on the leading lane only */
4019 	struct elink_dev *cb = params->cb;
4020 	u16 lane = elink_get_warpcore_lane(phy, params);
4021 	CL22_WR_OVER_CL45(cb, phy, MDIO_REG_BANK_AER_BLOCK,
4022 			  MDIO_AER_BLOCK_AER_REG, lane);
4023 	elink_cl45_write(cb, phy, MDIO_AN_DEVAD,
4024 			 MDIO_WC_REG_IEEE0BLK_MIICNTL, 0x1200);
4025 
4026 	/* Restore AER */
4027 	elink_set_aer_mmd(params, phy);
4028 }
4029 
elink_warpcore_enable_AN_KR(struct elink_phy * phy,struct elink_params * params,struct elink_vars * vars)4030 static void elink_warpcore_enable_AN_KR(struct elink_phy *phy,
4031 					struct elink_params *params,
4032 					struct elink_vars *vars) {
4033 	u16 lane, i, cl72_ctrl, an_adv = 0, val;
4034 	u32 wc_lane_config;
4035 	struct elink_dev *cb = params->cb;
4036 	static struct elink_reg_set reg_set[] = {
4037 		{MDIO_WC_DEVAD, MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X2, 0x7},
4038 		{MDIO_PMA_DEVAD, MDIO_WC_REG_IEEE0BLK_AUTONEGNP, 0x0},
4039 		{MDIO_WC_DEVAD, MDIO_WC_REG_RX66_CONTROL, 0x7415},
4040 		{MDIO_WC_DEVAD, MDIO_WC_REG_SERDESDIGITAL_MISC2, 0x6190},
4041 		/* Disable Autoneg: re-enable it after adv is done. */
4042 		{MDIO_AN_DEVAD, MDIO_WC_REG_IEEE0BLK_MIICNTL, 0},
4043 		{MDIO_PMA_DEVAD, MDIO_WC_REG_PMD_KR_CONTROL, 0x2},
4044 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL72_USERB0_CL72_TX_FIR_TAP, 0},
4045 	};
4046 	ELINK_DEBUG_P0(cb, "Enable Auto Negotiation for KR\n");
4047 	/* Set to default registers that may be overriden by 10G force */
4048 	for (i = 0; i < ARRAY_SIZE(reg_set); i++)
4049 		elink_cl45_write(cb, phy, reg_set[i].devad, reg_set[i].reg,
4050 				 reg_set[i].val);
4051 
4052 	elink_cl45_read(cb, phy, MDIO_WC_DEVAD,
4053 			MDIO_WC_REG_CL72_USERB0_CL72_MISC1_CONTROL, &cl72_ctrl);
4054 	cl72_ctrl &= 0x08ff;
4055 	cl72_ctrl |= 0x3800;
4056 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4057 			 MDIO_WC_REG_CL72_USERB0_CL72_MISC1_CONTROL, cl72_ctrl);
4058 
4059 	/* Check adding advertisement for 1G KX */
4060 	if (((vars->line_speed == ELINK_SPEED_AUTO_NEG) &&
4061 	     (phy->speed_cap_mask & PORT_HW_CFG_SPEED_CAPABILITY_D0_1G)) ||
4062 	    (vars->line_speed == ELINK_SPEED_1000)) {
4063 		u16 addr = MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X2;
4064 		an_adv |= (1<<5);
4065 
4066 		/* Enable CL37 1G Parallel Detect */
4067 		elink_cl45_read_or_write(cb, phy, MDIO_WC_DEVAD, addr, 0x1);
4068 		ELINK_DEBUG_P0(cb, "Advertize 1G\n");
4069 	}
4070 	if (((vars->line_speed == ELINK_SPEED_AUTO_NEG) &&
4071 	     (phy->speed_cap_mask & PORT_HW_CFG_SPEED_CAPABILITY_D0_10G)) ||
4072 	    (vars->line_speed ==  ELINK_SPEED_10000)) {
4073 		/* Check adding advertisement for 10G KR */
4074 		an_adv |= (1<<7);
4075 		/* Enable 10G Parallel Detect */
4076 		CL22_WR_OVER_CL45(cb, phy, MDIO_REG_BANK_AER_BLOCK,
4077 				  MDIO_AER_BLOCK_AER_REG, 0);
4078 
4079 		elink_cl45_write(cb, phy, MDIO_AN_DEVAD,
4080 				 MDIO_WC_REG_PAR_DET_10G_CTRL, 1);
4081 		elink_set_aer_mmd(params, phy);
4082 		ELINK_DEBUG_P0(cb, "Advertize 10G\n");
4083 	}
4084 
4085 	/* Set Transmit PMD settings */
4086 	lane = elink_get_warpcore_lane(phy, params);
4087 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4088 			 MDIO_WC_REG_TX0_TX_DRIVER + 0x10*lane,
4089 			 WC_TX_DRIVER(0x02, 0x06, 0x09));
4090 	/* Configure the next lane if dual mode */
4091 	if (phy->flags & ELINK_FLAGS_WC_DUAL_MODE)
4092 		elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4093 				 MDIO_WC_REG_TX0_TX_DRIVER + 0x10*(lane+1),
4094 				 WC_TX_DRIVER(0x02, 0x06, 0x09));
4095 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4096 			 MDIO_WC_REG_CL72_USERB0_CL72_OS_DEF_CTRL,
4097 			 0x03f0);
4098 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4099 			 MDIO_WC_REG_CL72_USERB0_CL72_2P5_DEF_CTRL,
4100 			 0x03f0);
4101 
4102 	/* Advertised speeds */
4103 	elink_cl45_write(cb, phy, MDIO_AN_DEVAD,
4104 			 MDIO_WC_REG_AN_IEEE1BLK_AN_ADVERTISEMENT1, an_adv);
4105 
4106 	/* Advertised and set FEC (Forward Error Correction) */
4107 	elink_cl45_write(cb, phy, MDIO_AN_DEVAD,
4108 			 MDIO_WC_REG_AN_IEEE1BLK_AN_ADVERTISEMENT2,
4109 			 (MDIO_WC_REG_AN_IEEE1BLK_AN_ADV2_FEC_ABILITY |
4110 			  MDIO_WC_REG_AN_IEEE1BLK_AN_ADV2_FEC_REQ));
4111 
4112 	/* Enable CL37 BAM */
4113 	if (REG_RD(cb, params->shmem_base +
4114 		   OFFSETOF(struct shmem_region, dev_info.
4115 			    port_hw_config[params->port].default_cfg)) &
4116 	    PORT_HW_CFG_ENABLE_BAM_ON_KR_ENABLED) {
4117 		elink_cl45_read_or_write(cb, phy, MDIO_WC_DEVAD,
4118 					 MDIO_WC_REG_DIGITAL6_MP5_NEXTPAGECTRL,
4119 					 1);
4120 		ELINK_DEBUG_P0(cb, "Enable CL37 BAM on KR\n");
4121 	}
4122 
4123 	/* Advertise pause */
4124 	elink_ext_phy_set_pause(params, phy, vars);
4125 	vars->rx_tx_asic_rst = MAX_KR_LINK_RETRY;
4126 	elink_cl45_read_or_write(cb, phy, MDIO_WC_DEVAD,
4127 				 MDIO_WC_REG_DIGITAL5_MISC7, 0x100);
4128 
4129 	/* Over 1G - AN local device user page 1 */
4130 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4131 			MDIO_WC_REG_DIGITAL3_UP1, 0x1f);
4132 
4133 	if (((phy->req_line_speed == ELINK_SPEED_AUTO_NEG) &&
4134 	     (phy->speed_cap_mask & PORT_HW_CFG_SPEED_CAPABILITY_D0_20G)) ||
4135 	    (phy->req_line_speed == ELINK_SPEED_20000)) {
4136 
4137 		CL22_WR_OVER_CL45(cb, phy, MDIO_REG_BANK_AER_BLOCK,
4138 				  MDIO_AER_BLOCK_AER_REG, lane);
4139 
4140 		elink_cl45_read_or_write(cb, phy, MDIO_WC_DEVAD,
4141 					 MDIO_WC_REG_RX1_PCI_CTRL + (0x10*lane),
4142 					 (1<<11));
4143 
4144 		elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4145 				 MDIO_WC_REG_XGXS_X2_CONTROL3, 0x7);
4146 		elink_set_aer_mmd(params, phy);
4147 
4148 		elink_warpcore_enable_AN_KR2(phy, params, vars);
4149 	} else {
4150 		/* Enable Auto-Detect to support 1G over CL37 as well */
4151 		elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4152 				 MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X1, 0x10);
4153 		wc_lane_config = REG_RD(cb, params->shmem_base +
4154 					OFFSETOF(struct shmem_region, dev_info.
4155 					shared_hw_config.wc_lane_config));
4156 		elink_cl45_read(cb, phy, MDIO_WC_DEVAD,
4157 				MDIO_WC_REG_RX0_PCI_CTRL + (lane << 4), &val);
4158 		/* Force cl48 sync_status LOW to avoid getting stuck in CL73
4159 		 * parallel-detect loop when CL73 and CL37 are enabled.
4160 		 */
4161 		val |= 1 << 11;
4162 
4163 		/* Restore Polarity settings in case it was run over by
4164 		 * previous link owner
4165 		 */
4166 		if (wc_lane_config &
4167 		    (SHARED_HW_CFG_RX_LANE0_POL_FLIP_ENABLED << lane))
4168 			val |= 3 << 2;
4169 		else
4170 			val &= ~(3 << 2);
4171 		elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4172 				 MDIO_WC_REG_RX0_PCI_CTRL + (lane << 4),
4173 				 val);
4174 
4175 		elink_disable_kr2(params, vars, phy);
4176 	}
4177 
4178 	/* Enable Autoneg: only on the main lane */
4179 	elink_warpcore_restart_AN_KR(phy, params);
4180 }
4181 
elink_warpcore_set_10G_KR(struct elink_phy * phy,struct elink_params * params,struct elink_vars * vars)4182 static void elink_warpcore_set_10G_KR(struct elink_phy *phy,
4183 				      struct elink_params *params,
4184 				      struct elink_vars *vars)
4185 {
4186 	struct elink_dev *cb = params->cb;
4187 	u16 val16, i, lane;
4188 	static struct elink_reg_set reg_set[] = {
4189 		/* Disable Autoneg */
4190 		{MDIO_WC_DEVAD, MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X2, 0x7},
4191 		{MDIO_WC_DEVAD, MDIO_WC_REG_CL72_USERB0_CL72_MISC1_CONTROL,
4192 			0x3f00},
4193 		{MDIO_AN_DEVAD, MDIO_WC_REG_AN_IEEE1BLK_AN_ADVERTISEMENT1, 0},
4194 		{MDIO_AN_DEVAD, MDIO_WC_REG_IEEE0BLK_MIICNTL, 0x0},
4195 		{MDIO_WC_DEVAD, MDIO_WC_REG_DIGITAL3_UP1, 0x1},
4196 		{MDIO_WC_DEVAD, MDIO_WC_REG_DIGITAL5_MISC7, 0xa},
4197 		/* Leave cl72 training enable, needed for KR */
4198 		{MDIO_PMA_DEVAD, MDIO_WC_REG_PMD_KR_CONTROL, 0x2}
4199 	};
4200 
4201 	for (i = 0; i < ARRAY_SIZE(reg_set); i++)
4202 		elink_cl45_write(cb, phy, reg_set[i].devad, reg_set[i].reg,
4203 				 reg_set[i].val);
4204 
4205 	lane = elink_get_warpcore_lane(phy, params);
4206 	/* Global registers */
4207 	CL22_WR_OVER_CL45(cb, phy, MDIO_REG_BANK_AER_BLOCK,
4208 			  MDIO_AER_BLOCK_AER_REG, 0);
4209 	/* Disable CL36 PCS Tx */
4210 	elink_cl45_read(cb, phy, MDIO_WC_DEVAD,
4211 			MDIO_WC_REG_XGXSBLK1_LANECTRL0, &val16);
4212 	val16 &= ~(0x0011 << lane);
4213 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4214 			 MDIO_WC_REG_XGXSBLK1_LANECTRL0, val16);
4215 
4216 	elink_cl45_read(cb, phy, MDIO_WC_DEVAD,
4217 			MDIO_WC_REG_XGXSBLK1_LANECTRL1, &val16);
4218 	val16 |= (0x0303 << (lane << 1));
4219 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4220 			 MDIO_WC_REG_XGXSBLK1_LANECTRL1, val16);
4221 	/* Restore AER */
4222 	elink_set_aer_mmd(params, phy);
4223 	/* Set speed via PMA/PMD register */
4224 	elink_cl45_write(cb, phy, MDIO_PMA_DEVAD,
4225 			 MDIO_WC_REG_IEEE0BLK_MIICNTL, 0x2040);
4226 
4227 	elink_cl45_write(cb, phy, MDIO_PMA_DEVAD,
4228 			 MDIO_WC_REG_IEEE0BLK_AUTONEGNP, 0xB);
4229 
4230 	/* Enable encoded forced speed */
4231 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4232 			 MDIO_WC_REG_SERDESDIGITAL_MISC2, 0x30);
4233 
4234 	/* Turn TX scramble payload only the 64/66 scrambler */
4235 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4236 			 MDIO_WC_REG_TX66_CONTROL, 0x9);
4237 
4238 	/* Turn RX scramble payload only the 64/66 scrambler */
4239 	elink_cl45_read_or_write(cb, phy, MDIO_WC_DEVAD,
4240 				 MDIO_WC_REG_RX66_CONTROL, 0xF9);
4241 
4242 	/* Set and clear loopback to cause a reset to 64/66 decoder */
4243 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4244 			 MDIO_WC_REG_IEEE0BLK_MIICNTL, 0x4000);
4245 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4246 			 MDIO_WC_REG_IEEE0BLK_MIICNTL, 0x0);
4247 
4248 }
4249 
elink_warpcore_set_10G_XFI(struct elink_phy * phy,struct elink_params * params,u8 is_xfi)4250 static void elink_warpcore_set_10G_XFI(struct elink_phy *phy,
4251 				       struct elink_params *params,
4252 				       u8 is_xfi)
4253 {
4254 	struct elink_dev *cb = params->cb;
4255 	u16 misc1_val, tap_val, tx_driver_val, lane, val;
4256 	u32 cfg_tap_val, tx_drv_brdct, tx_equal;
4257 
4258 	/* Hold rxSeqStart */
4259 	elink_cl45_read_or_write(cb, phy, MDIO_WC_DEVAD,
4260 				 MDIO_WC_REG_DSC2B0_DSC_MISC_CTRL0, 0x8000);
4261 
4262 	/* Hold tx_fifo_reset */
4263 	elink_cl45_read_or_write(cb, phy, MDIO_WC_DEVAD,
4264 				 MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X3, 0x1);
4265 
4266 	/* Disable CL73 AN */
4267 	elink_cl45_write(cb, phy, MDIO_AN_DEVAD, MDIO_AN_REG_CTRL, 0);
4268 
4269 	/* Disable 100FX Enable and Auto-Detect */
4270 	elink_cl45_read_and_write(cb, phy, MDIO_WC_DEVAD,
4271 				  MDIO_WC_REG_FX100_CTRL1, 0xFFFA);
4272 
4273 	/* Disable 100FX Idle detect */
4274 	elink_cl45_read_or_write(cb, phy, MDIO_WC_DEVAD,
4275 				 MDIO_WC_REG_FX100_CTRL3, 0x0080);
4276 
4277 	/* Set Block address to Remote PHY & Clear forced_speed[5] */
4278 	elink_cl45_read_and_write(cb, phy, MDIO_WC_DEVAD,
4279 				  MDIO_WC_REG_DIGITAL4_MISC3, 0xFF7F);
4280 
4281 	/* Turn off auto-detect & fiber mode */
4282 	elink_cl45_read_and_write(cb, phy, MDIO_WC_DEVAD,
4283 				  MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X1,
4284 				  0xFFEE);
4285 
4286 	/* Set filter_force_link, disable_false_link and parallel_detect */
4287 	elink_cl45_read(cb, phy, MDIO_WC_DEVAD,
4288 			MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X2, &val);
4289 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4290 			 MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X2,
4291 			 ((val | 0x0006) & 0xFFFE));
4292 
4293 	/* Set XFI / SFI */
4294 	elink_cl45_read(cb, phy, MDIO_WC_DEVAD,
4295 			MDIO_WC_REG_SERDESDIGITAL_MISC1, &misc1_val);
4296 
4297 	misc1_val &= ~(0x1f);
4298 
4299 	if (is_xfi) {
4300 		misc1_val |= 0x5;
4301 		tap_val = WC_TX_FIR(0x08, 0x37, 0x00);
4302 		tx_driver_val = WC_TX_DRIVER(0x00, 0x02, 0x03);
4303 	} else {
4304 		cfg_tap_val = REG_RD(cb, params->shmem_base +
4305 				     OFFSETOF(struct shmem_region, dev_info.
4306 					      port_hw_config[params->port].
4307 					      sfi_tap_values));
4308 
4309 		tx_equal = cfg_tap_val & PORT_HW_CFG_TX_EQUALIZATION_MASK;
4310 
4311 		tx_drv_brdct = (cfg_tap_val &
4312 				PORT_HW_CFG_TX_DRV_BROADCAST_MASK) >>
4313 			       PORT_HW_CFG_TX_DRV_BROADCAST_SHIFT;
4314 
4315 		misc1_val |= 0x9;
4316 
4317 		/* TAP values are controlled by nvram, if value there isn't 0 */
4318 		if (tx_equal)
4319 			tap_val = (u16)tx_equal;
4320 		else
4321 			tap_val = WC_TX_FIR(0x0f, 0x2b, 0x02);
4322 
4323 		if (tx_drv_brdct)
4324 			tx_driver_val = WC_TX_DRIVER(0x03, (u16)tx_drv_brdct,
4325 						     0x06);
4326 		else
4327 			tx_driver_val = WC_TX_DRIVER(0x03, 0x02, 0x06);
4328 	}
4329 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4330 			 MDIO_WC_REG_SERDESDIGITAL_MISC1, misc1_val);
4331 
4332 	/* Set Transmit PMD settings */
4333 	lane = elink_get_warpcore_lane(phy, params);
4334 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4335 			 MDIO_WC_REG_TX_FIR_TAP,
4336 			 tap_val | MDIO_WC_REG_TX_FIR_TAP_ENABLE);
4337 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4338 			 MDIO_WC_REG_TX0_TX_DRIVER + 0x10*lane,
4339 			 tx_driver_val);
4340 
4341 	/* Enable fiber mode, enable and invert sig_det */
4342 	elink_cl45_read_or_write(cb, phy, MDIO_WC_DEVAD,
4343 				 MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X1, 0xd);
4344 
4345 	/* Set Block address to Remote PHY & Set forced_speed[5], 40bit mode */
4346 	elink_cl45_read_or_write(cb, phy, MDIO_WC_DEVAD,
4347 				 MDIO_WC_REG_DIGITAL4_MISC3, 0x8080);
4348 
4349 	elink_warpcore_set_lpi_passthrough(phy, params);
4350 
4351 	/* 10G XFI Full Duplex */
4352 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4353 			 MDIO_WC_REG_IEEE0BLK_MIICNTL, 0x100);
4354 
4355 	/* Release tx_fifo_reset */
4356 	elink_cl45_read_and_write(cb, phy, MDIO_WC_DEVAD,
4357 				  MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X3,
4358 				  0xFFFE);
4359 	/* Release rxSeqStart */
4360 	elink_cl45_read_and_write(cb, phy, MDIO_WC_DEVAD,
4361 				  MDIO_WC_REG_DSC2B0_DSC_MISC_CTRL0, 0x7FFF);
4362 }
4363 #endif //EXCLUDE_NON_COMMON_INIT
4364 
4365 #ifndef ELINK_AUX_POWER
elink_warpcore_set_20G_force_KR2(struct elink_phy * phy,struct elink_params * params)4366 static void elink_warpcore_set_20G_force_KR2(struct elink_phy *phy,
4367 					     struct elink_params *params)
4368 {
4369 	u16 val;
4370 	struct elink_dev *cb = params->cb;
4371 	/* Set global registers, so set AER lane to 0 */
4372 	CL22_WR_OVER_CL45(cb, phy, MDIO_REG_BANK_AER_BLOCK,
4373 			  MDIO_AER_BLOCK_AER_REG, 0);
4374 
4375 	/* Disable sequencer */
4376 	elink_cl45_read_and_write(cb, phy, MDIO_WC_DEVAD,
4377 				  MDIO_WC_REG_XGXSBLK0_XGXSCONTROL, ~(1<<13));
4378 
4379 	elink_set_aer_mmd(params, phy);
4380 
4381 	elink_cl45_read_and_write(cb, phy, MDIO_PMA_DEVAD,
4382 				  MDIO_WC_REG_PMD_KR_CONTROL, ~(1<<1));
4383 	elink_cl45_write(cb, phy, MDIO_AN_DEVAD,
4384 			 MDIO_AN_REG_CTRL, 0);
4385 	/* Turn off CL73 */
4386 	elink_cl45_read(cb, phy, MDIO_WC_DEVAD,
4387 			MDIO_WC_REG_CL73_USERB0_CTRL, &val);
4388 	val &= ~(1<<5);
4389 	val |= (1<<6);
4390 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4391 			 MDIO_WC_REG_CL73_USERB0_CTRL, val);
4392 
4393 	/* Set 20G KR2 force speed */
4394 	elink_cl45_read_or_write(cb, phy, MDIO_WC_DEVAD,
4395 				 MDIO_WC_REG_SERDESDIGITAL_MISC1, 0x1f);
4396 
4397 	elink_cl45_read_or_write(cb, phy, MDIO_WC_DEVAD,
4398 				 MDIO_WC_REG_DIGITAL4_MISC3, (1<<7));
4399 
4400 	elink_cl45_read(cb, phy, MDIO_WC_DEVAD,
4401 			MDIO_WC_REG_CL72_USERB0_CL72_MISC1_CONTROL, &val);
4402 	val &= ~(3<<14);
4403 	val |= (1<<15);
4404 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4405 			 MDIO_WC_REG_CL72_USERB0_CL72_MISC1_CONTROL, val);
4406 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4407 			 MDIO_WC_REG_CL72_USERB0_CL72_TX_FIR_TAP, 0x835A);
4408 
4409 	/* Enable sequencer (over lane 0) */
4410 	CL22_WR_OVER_CL45(cb, phy, MDIO_REG_BANK_AER_BLOCK,
4411 			  MDIO_AER_BLOCK_AER_REG, 0);
4412 
4413 	elink_cl45_read_or_write(cb, phy, MDIO_WC_DEVAD,
4414 				 MDIO_WC_REG_XGXSBLK0_XGXSCONTROL, (1<<13));
4415 
4416 	elink_set_aer_mmd(params, phy);
4417 }
4418 #endif
4419 
4420 #ifndef EXCLUDE_COMMON_INIT
elink_warpcore_set_20G_DXGXS(struct elink_dev * cb,struct elink_phy * phy,u16 lane)4421 static void elink_warpcore_set_20G_DXGXS(struct elink_dev *cb,
4422 					 struct elink_phy *phy,
4423 					 u16 lane)
4424 {
4425 	/* Rx0 anaRxControl1G */
4426 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4427 			 MDIO_WC_REG_RX0_ANARXCONTROL1G, 0x90);
4428 
4429 	/* Rx2 anaRxControl1G */
4430 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4431 			 MDIO_WC_REG_RX2_ANARXCONTROL1G, 0x90);
4432 
4433 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4434 			 MDIO_WC_REG_RX66_SCW0, 0xE070);
4435 
4436 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4437 			 MDIO_WC_REG_RX66_SCW1, 0xC0D0);
4438 
4439 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4440 			 MDIO_WC_REG_RX66_SCW2, 0xA0B0);
4441 
4442 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4443 			 MDIO_WC_REG_RX66_SCW3, 0x8090);
4444 
4445 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4446 			 MDIO_WC_REG_RX66_SCW0_MASK, 0xF0F0);
4447 
4448 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4449 			 MDIO_WC_REG_RX66_SCW1_MASK, 0xF0F0);
4450 
4451 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4452 			 MDIO_WC_REG_RX66_SCW2_MASK, 0xF0F0);
4453 
4454 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4455 			 MDIO_WC_REG_RX66_SCW3_MASK, 0xF0F0);
4456 
4457 	/* Serdes Digital Misc1 */
4458 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4459 			 MDIO_WC_REG_SERDESDIGITAL_MISC1, 0x6008);
4460 
4461 	/* Serdes Digital4 Misc3 */
4462 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4463 			 MDIO_WC_REG_DIGITAL4_MISC3, 0x8088);
4464 
4465 	/* Set Transmit PMD settings */
4466 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4467 			 MDIO_WC_REG_TX_FIR_TAP,
4468 			 (WC_TX_FIR(0x12, 0x2d, 0x00) |
4469 			  MDIO_WC_REG_TX_FIR_TAP_ENABLE));
4470 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4471 			 MDIO_WC_REG_TX0_TX_DRIVER + 0x10*lane,
4472 			 WC_TX_DRIVER(0x02, 0x02, 0x02));
4473 }
4474 #endif
4475 
4476 #ifndef EXCLUDE_NON_COMMON_INIT
elink_warpcore_set_sgmii_speed(struct elink_phy * phy,struct elink_params * params,u8 fiber_mode,u8 always_autoneg)4477 static void elink_warpcore_set_sgmii_speed(struct elink_phy *phy,
4478 					   struct elink_params *params,
4479 					   u8 fiber_mode,
4480 					   u8 always_autoneg)
4481 {
4482 	struct elink_dev *cb = params->cb;
4483 	u16 val16, digctrl_kx1, digctrl_kx2;
4484 
4485 	/* Clear XFI clock comp in non-10G single lane mode. */
4486 	elink_cl45_read_and_write(cb, phy, MDIO_WC_DEVAD,
4487 				  MDIO_WC_REG_RX66_CONTROL, ~(3<<13));
4488 
4489 	elink_warpcore_set_lpi_passthrough(phy, params);
4490 
4491 	if (always_autoneg || phy->req_line_speed == ELINK_SPEED_AUTO_NEG) {
4492 		/* SGMII Autoneg */
4493 		elink_cl45_read_or_write(cb, phy, MDIO_WC_DEVAD,
4494 					 MDIO_WC_REG_COMBO_IEEE0_MIICTRL,
4495 					 0x1000);
4496 		ELINK_DEBUG_P0(cb, "set SGMII AUTONEG\n");
4497 	} else {
4498 		elink_cl45_read(cb, phy, MDIO_WC_DEVAD,
4499 				MDIO_WC_REG_COMBO_IEEE0_MIICTRL, &val16);
4500 		val16 &= 0xcebf;
4501 		switch (phy->req_line_speed) {
4502 		case ELINK_SPEED_10:
4503 			break;
4504 		case ELINK_SPEED_100:
4505 			val16 |= 0x2000;
4506 			break;
4507 		case ELINK_SPEED_1000:
4508 			val16 |= 0x0040;
4509 			break;
4510 		default:
4511 			ELINK_DEBUG_P1(cb,
4512 			   "Speed not supported: 0x%x\n", phy->req_line_speed);
4513 			return;
4514 		}
4515 
4516 		if (phy->req_duplex == DUPLEX_FULL)
4517 			val16 |= 0x0100;
4518 
4519 		elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4520 				MDIO_WC_REG_COMBO_IEEE0_MIICTRL, val16);
4521 
4522 		ELINK_DEBUG_P1(cb, "set SGMII force speed %d\n",
4523 			       phy->req_line_speed);
4524 		elink_cl45_read(cb, phy, MDIO_WC_DEVAD,
4525 				MDIO_WC_REG_COMBO_IEEE0_MIICTRL, &val16);
4526 		ELINK_DEBUG_P1(cb, "  (readback) %x\n", val16);
4527 	}
4528 
4529 	/* SGMII Slave mode and disable signal detect */
4530 	elink_cl45_read(cb, phy, MDIO_WC_DEVAD,
4531 			MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X1, &digctrl_kx1);
4532 	if (fiber_mode)
4533 		digctrl_kx1 = 1;
4534 	else
4535 		digctrl_kx1 &= 0xff4a;
4536 
4537 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4538 			MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X1,
4539 			digctrl_kx1);
4540 
4541 	/* Turn off parallel detect */
4542 	elink_cl45_read(cb, phy, MDIO_WC_DEVAD,
4543 			MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X2, &digctrl_kx2);
4544 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4545 			MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X2,
4546 			(digctrl_kx2 & ~(1<<2)));
4547 
4548 	/* Re-enable parallel detect */
4549 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4550 			MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X2,
4551 			(digctrl_kx2 | (1<<2)));
4552 
4553 	/* Enable autodet */
4554 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4555 			MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X1,
4556 			(digctrl_kx1 | 0x10));
4557 }
4558 
4559 #endif //EXCLUDE_NON_COMMON_INIT
4560 
elink_warpcore_reset_lane(struct elink_dev * cb,struct elink_phy * phy,u8 reset)4561 static void elink_warpcore_reset_lane(struct elink_dev *cb,
4562 				      struct elink_phy *phy,
4563 				      u8 reset)
4564 {
4565 	u16 val;
4566 	/* Take lane out of reset after configuration is finished */
4567 	elink_cl45_read(cb, phy, MDIO_WC_DEVAD,
4568 			MDIO_WC_REG_DIGITAL5_MISC6, &val);
4569 	if (reset)
4570 		val |= 0xC000;
4571 	else
4572 		val &= 0x3FFF;
4573 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4574 			 MDIO_WC_REG_DIGITAL5_MISC6, val);
4575 	elink_cl45_read(cb, phy, MDIO_WC_DEVAD,
4576 			 MDIO_WC_REG_DIGITAL5_MISC6, &val);
4577 }
4578 
4579 #ifndef EXCLUDE_NON_COMMON_INIT
4580 /* Clear SFI/XFI link settings registers */
elink_warpcore_clear_regs(struct elink_phy * phy,struct elink_params * params,u16 lane)4581 static void elink_warpcore_clear_regs(struct elink_phy *phy,
4582 				      struct elink_params *params,
4583 				      u16 lane)
4584 {
4585 	struct elink_dev *cb = params->cb;
4586 	u16 i;
4587 	static struct elink_reg_set wc_regs[] = {
4588 		{MDIO_AN_DEVAD, MDIO_AN_REG_CTRL, 0},
4589 		{MDIO_WC_DEVAD, MDIO_WC_REG_FX100_CTRL1, 0x014a},
4590 		{MDIO_WC_DEVAD, MDIO_WC_REG_FX100_CTRL3, 0x0800},
4591 		{MDIO_WC_DEVAD, MDIO_WC_REG_DIGITAL4_MISC3, 0x8008},
4592 		{MDIO_WC_DEVAD, MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X1,
4593 			0x0195},
4594 		{MDIO_WC_DEVAD, MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X2,
4595 			0x0007},
4596 		{MDIO_WC_DEVAD, MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X3,
4597 			0x0002},
4598 		{MDIO_WC_DEVAD, MDIO_WC_REG_SERDESDIGITAL_MISC1, 0x6000},
4599 		{MDIO_WC_DEVAD, MDIO_WC_REG_TX_FIR_TAP, 0x0000},
4600 		{MDIO_WC_DEVAD, MDIO_WC_REG_IEEE0BLK_MIICNTL, 0x2040},
4601 		{MDIO_WC_DEVAD, MDIO_WC_REG_COMBO_IEEE0_MIICTRL, 0x0140}
4602 	};
4603 	/* Set XFI clock comp as default. */
4604 	elink_cl45_read_or_write(cb, phy, MDIO_WC_DEVAD,
4605 				 MDIO_WC_REG_RX66_CONTROL, (3<<13));
4606 
4607 	for (i = 0; i < ARRAY_SIZE(wc_regs); i++)
4608 		elink_cl45_write(cb, phy, wc_regs[i].devad, wc_regs[i].reg,
4609 				 wc_regs[i].val);
4610 
4611 	lane = elink_get_warpcore_lane(phy, params);
4612 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4613 			 MDIO_WC_REG_TX0_TX_DRIVER + 0x10*lane, 0x0990);
4614 
4615 }
4616 
elink_get_mod_abs_int_cfg(struct elink_dev * cb,u32 chip_id,u32 shmem_base,u8 port,u8 * gpio_num,u8 * gpio_port)4617 static elink_status_t elink_get_mod_abs_int_cfg(struct elink_dev *cb,
4618 						u32 chip_id,
4619 						u32 shmem_base, u8 port,
4620 						u8 *gpio_num, u8 *gpio_port)
4621 {
4622 	u32 cfg_pin;
4623 	*gpio_num = 0;
4624 	*gpio_port = 0;
4625 	if (CHIP_IS_E3(chip_id)) {
4626 		cfg_pin = (REG_RD(cb, shmem_base +
4627 				OFFSETOF(struct shmem_region,
4628 				dev_info.port_hw_config[port].e3_sfp_ctrl)) &
4629 				PORT_HW_CFG_E3_MOD_ABS_MASK) >>
4630 				PORT_HW_CFG_E3_MOD_ABS_SHIFT;
4631 
4632 		/* Should not happen. This function called upon interrupt
4633 		 * triggered by GPIO ( since EPIO can only generate interrupts
4634 		 * to MCP).
4635 		 * So if this function was called and none of the GPIOs was set,
4636 		 * it means the shit hit the fan.
4637 		 */
4638 		if ((cfg_pin < PIN_CFG_GPIO0_P0) ||
4639 		    (cfg_pin > PIN_CFG_GPIO3_P1)) {
4640 			ELINK_DEBUG_P1(cb,
4641 			   "No cfg pin %x for module detect indication\n",
4642 			   cfg_pin);
4643 			return ELINK_STATUS_ERROR;
4644 		}
4645 
4646 		*gpio_num = (cfg_pin - PIN_CFG_GPIO0_P0) & 0x3;
4647 		*gpio_port = (cfg_pin - PIN_CFG_GPIO0_P0) >> 2;
4648 	} else {
4649 		*gpio_num = MISC_REGISTERS_GPIO_3;
4650 		*gpio_port = port;
4651 	}
4652 
4653 	return ELINK_STATUS_OK;
4654 }
4655 
elink_is_sfp_module_plugged(struct elink_phy * phy,struct elink_params * params)4656 static int elink_is_sfp_module_plugged(struct elink_phy *phy,
4657 				       struct elink_params *params)
4658 {
4659 	struct elink_dev *cb = params->cb;
4660 	u8 gpio_num, gpio_port;
4661 	u32 gpio_val;
4662 	if (elink_get_mod_abs_int_cfg(cb, params->chip_id,
4663 				      params->shmem_base, params->port,
4664 				      &gpio_num, &gpio_port) != ELINK_STATUS_OK)
4665 		return 0;
4666 	gpio_val = ELINK_GET_GPIO(cb, gpio_num, gpio_port);
4667 
4668 	/* Call the handling function in case module is detected */
4669 	if (gpio_val == 0)
4670 		return 1;
4671 	else
4672 		return 0;
4673 }
elink_warpcore_get_sigdet(struct elink_phy * phy,struct elink_params * params)4674 int elink_warpcore_get_sigdet(struct elink_phy *phy,
4675 			      struct elink_params *params)
4676 {
4677 	u16 gp2_status_reg0, lane;
4678 	struct elink_dev *cb = params->cb;
4679 
4680 	lane = elink_get_warpcore_lane(phy, params);
4681 
4682 	elink_cl45_read(cb, phy, MDIO_WC_DEVAD, MDIO_WC_REG_GP2_STATUS_GP_2_0,
4683 				 &gp2_status_reg0);
4684 
4685 	return (gp2_status_reg0 >> (8+lane)) & 0x1;
4686 }
4687 
4688 #ifndef ELINK_AUX_POWER
elink_warpcore_config_runtime(struct elink_phy * phy,struct elink_params * params,struct elink_vars * vars)4689 static void elink_warpcore_config_runtime(struct elink_phy *phy,
4690 					  struct elink_params *params,
4691 					  struct elink_vars *vars)
4692 {
4693 	struct elink_dev *cb = params->cb;
4694 	u32 serdes_net_if;
4695 	u16 gp_status1 = 0, lnkup = 0, lnkup_kr = 0;
4696 
4697 	vars->turn_to_run_wc_rt = vars->turn_to_run_wc_rt ? 0 : 1;
4698 
4699 	if (!vars->turn_to_run_wc_rt)
4700 		return;
4701 
4702 	if (vars->rx_tx_asic_rst) {
4703 		u16 lane = elink_get_warpcore_lane(phy, params);
4704 		serdes_net_if = (REG_RD(cb, params->shmem_base +
4705 				OFFSETOF(struct shmem_region, dev_info.
4706 				port_hw_config[params->port].default_cfg)) &
4707 				PORT_HW_CFG_NET_SERDES_IF_MASK);
4708 
4709 		switch (serdes_net_if) {
4710 		case PORT_HW_CFG_NET_SERDES_IF_KR:
4711 			/* Do we get link yet? */
4712 			elink_cl45_read(cb, phy, MDIO_WC_DEVAD, 0x81d1,
4713 					&gp_status1);
4714 			lnkup = (gp_status1 >> (8+lane)) & 0x1;/* 1G */
4715 				/*10G KR*/
4716 			lnkup_kr = (gp_status1 >> (12+lane)) & 0x1;
4717 
4718 			if (lnkup_kr || lnkup) {
4719 				vars->rx_tx_asic_rst = 0;
4720 			} else {
4721 				/* Reset the lane to see if link comes up.*/
4722 				elink_warpcore_reset_lane(cb, phy, 1);
4723 				elink_warpcore_reset_lane(cb, phy, 0);
4724 
4725 				/* Restart Autoneg */
4726 				elink_cl45_write(cb, phy, MDIO_AN_DEVAD,
4727 					MDIO_WC_REG_IEEE0BLK_MIICNTL, 0x1200);
4728 
4729 				vars->rx_tx_asic_rst--;
4730 				ELINK_DEBUG_P1(cb, "0x%x retry left\n",
4731 				vars->rx_tx_asic_rst);
4732 			}
4733 			break;
4734 
4735 		default:
4736 			break;
4737 		}
4738 
4739 	} /*params->rx_tx_asic_rst*/
4740 
4741 }
4742 #endif
elink_warpcore_config_sfi(struct elink_phy * phy,struct elink_params * params)4743 static void elink_warpcore_config_sfi(struct elink_phy *phy,
4744 				      struct elink_params *params)
4745 {
4746 	u16 lane = elink_get_warpcore_lane(phy, params);
4747 #ifdef ELINK_DEBUG
4748 	struct elink_dev *cb = params->cb;
4749 #endif
4750 	elink_warpcore_clear_regs(phy, params, lane);
4751 	if ((params->req_line_speed[ELINK_LINK_CONFIG_IDX(ELINK_INT_PHY)] ==
4752 	     ELINK_SPEED_10000) &&
4753 	    (phy->media_type != ELINK_ETH_PHY_SFP_1G_FIBER)) {
4754 		ELINK_DEBUG_P0(cb, "Setting 10G SFI\n");
4755 		elink_warpcore_set_10G_XFI(phy, params, 0);
4756 	} else {
4757 		ELINK_DEBUG_P0(cb, "Setting 1G Fiber\n");
4758 		elink_warpcore_set_sgmii_speed(phy, params, 1, 0);
4759 	}
4760 }
4761 
elink_sfp_e3_set_transmitter(struct elink_params * params,struct elink_phy * phy,u8 tx_en)4762 static void elink_sfp_e3_set_transmitter(struct elink_params *params,
4763 					 struct elink_phy *phy,
4764 					 u8 tx_en)
4765 {
4766 	struct elink_dev *cb = params->cb;
4767 	u32 cfg_pin;
4768 	u8 port = params->port;
4769 
4770 	cfg_pin = REG_RD(cb, params->shmem_base +
4771 			 OFFSETOF(struct shmem_region,
4772 				  dev_info.port_hw_config[port].e3_sfp_ctrl)) &
4773 		PORT_HW_CFG_E3_TX_LASER_MASK;
4774 	/* Set the !tx_en since this pin is DISABLE_TX_LASER */
4775 	ELINK_DEBUG_P1(cb, "Setting WC TX to %d\n", tx_en);
4776 
4777 	/* For 20G, the expected pin to be used is 3 pins after the current */
4778 	elink_set_cfg_pin(cb, cfg_pin, tx_en ^ 1);
4779 	if (phy->speed_cap_mask & PORT_HW_CFG_SPEED_CAPABILITY_D0_20G)
4780 		elink_set_cfg_pin(cb, cfg_pin + 3, tx_en ^ 1);
4781 }
4782 
4783 static elink_status_t
elink_warpcore_config_init(struct elink_phy * phy,struct elink_params * params,struct elink_vars * vars)4784 elink_warpcore_config_init(struct elink_phy *phy, struct elink_params *params,
4785     struct elink_vars *vars)
4786 {
4787 	struct elink_dev *cb = params->cb;
4788 	u32 serdes_net_if;
4789 	u8 fiber_mode;
4790 	u16 lane = elink_get_warpcore_lane(phy, params);
4791 	serdes_net_if = (REG_RD(cb, params->shmem_base +
4792 			 OFFSETOF(struct shmem_region, dev_info.
4793 				  port_hw_config[params->port].default_cfg)) &
4794 			 PORT_HW_CFG_NET_SERDES_IF_MASK);
4795 	ELINK_DEBUG_P2(cb, "Begin Warpcore init, link_speed %d, "
4796 			   "serdes_net_if = 0x%x\n",
4797 		       vars->line_speed, serdes_net_if);
4798 	elink_set_aer_mmd(params, phy);
4799 	elink_warpcore_reset_lane(cb, phy, 1);
4800 	vars->phy_flags |= PHY_XGXS_FLAG;
4801 	if ((serdes_net_if == PORT_HW_CFG_NET_SERDES_IF_SGMII) ||
4802 	    (phy->req_line_speed &&
4803 	     ((phy->req_line_speed == ELINK_SPEED_100) ||
4804 	      (phy->req_line_speed == ELINK_SPEED_10)))) {
4805 		vars->phy_flags |= PHY_SGMII_FLAG;
4806 		ELINK_DEBUG_P0(cb, "Setting SGMII mode\n");
4807 		elink_warpcore_clear_regs(phy, params, lane);
4808 		elink_warpcore_set_sgmii_speed(phy, params, 0, 1);
4809 	} else {
4810 		switch (serdes_net_if) {
4811 		case PORT_HW_CFG_NET_SERDES_IF_KR:
4812 			/* Enable KR Auto Neg */
4813 			if (params->loopback_mode != ELINK_LOOPBACK_EXT)
4814 				elink_warpcore_enable_AN_KR(phy, params, vars);
4815 			else {
4816 				ELINK_DEBUG_P0(cb, "Setting KR 10G-Force\n");
4817 				elink_warpcore_set_10G_KR(phy, params, vars);
4818 			}
4819 			break;
4820 
4821 		case PORT_HW_CFG_NET_SERDES_IF_XFI:
4822 			elink_warpcore_clear_regs(phy, params, lane);
4823 			if (vars->line_speed == ELINK_SPEED_10000) {
4824 				ELINK_DEBUG_P0(cb, "Setting 10G XFI\n");
4825 				elink_warpcore_set_10G_XFI(phy, params, 1);
4826 			} else {
4827 				if (ELINK_SINGLE_MEDIA_DIRECT(params)) {
4828 					ELINK_DEBUG_P0(cb, "1G Fiber\n");
4829 					fiber_mode = 1;
4830 				} else {
4831 					ELINK_DEBUG_P0(cb, "10/100/1G SGMII\n");
4832 					fiber_mode = 0;
4833 				}
4834 				elink_warpcore_set_sgmii_speed(phy,
4835 								params,
4836 								fiber_mode,
4837 								0);
4838 			}
4839 
4840 			break;
4841 
4842 		case PORT_HW_CFG_NET_SERDES_IF_SFI:
4843 			/* Issue Module detection if module is plugged, or
4844 			 * enabled transmitter to avoid current leakage in case
4845 			 * no module is connected
4846 			 */
4847 			if ((params->loopback_mode == ELINK_LOOPBACK_NONE) ||
4848 			    (params->loopback_mode == ELINK_LOOPBACK_EXT)) {
4849 				if (elink_is_sfp_module_plugged(phy, params))
4850 					elink_sfp_module_detection(phy, params);
4851 				else
4852 					elink_sfp_e3_set_transmitter(params,
4853 								     phy, 1);
4854 			}
4855 
4856 			elink_warpcore_config_sfi(phy, params);
4857 			break;
4858 
4859 #ifndef ELINK_AUX_POWER
4860 		case PORT_HW_CFG_NET_SERDES_IF_DXGXS:
4861 			if (vars->line_speed != ELINK_SPEED_20000) {
4862 				ELINK_DEBUG_P0(cb, "Speed not supported yet\n");
4863 				return (ELINK_STATUS_ERROR);
4864 			}
4865 			ELINK_DEBUG_P0(cb, "Setting 20G DXGXS\n");
4866 			elink_warpcore_set_20G_DXGXS(cb, phy, lane);
4867 			/* Issue Module detection */
4868 
4869 			elink_sfp_module_detection(phy, params);
4870 			break;
4871 #endif
4872 		case PORT_HW_CFG_NET_SERDES_IF_KR2:
4873 			if (!params->loopback_mode) {
4874 				elink_warpcore_enable_AN_KR(phy, params, vars);
4875 			} else {
4876 #ifndef ELINK_AUX_POWER
4877 				ELINK_DEBUG_P0(cb, "Setting KR 20G-Force\n");
4878 				elink_warpcore_set_20G_force_KR2(phy, params);
4879 #endif
4880 			}
4881 			break;
4882 		default:
4883 			ELINK_DEBUG_P1(cb,
4884 			   "Unsupported Serdes Net Interface 0x%x\n",
4885 			   serdes_net_if);
4886 			return (ELINK_STATUS_ERROR);
4887 		}
4888 	}
4889 
4890 	/* Take lane out of reset after configuration is finished */
4891 	elink_warpcore_reset_lane(cb, phy, 0);
4892 	ELINK_DEBUG_P0(cb, "Exit config init\n");
4893 	return (ELINK_STATUS_OK);
4894 }
4895 
elink_warpcore_link_reset(struct elink_phy * phy,struct elink_params * params)4896 static void elink_warpcore_link_reset(struct elink_phy *phy,
4897 				      struct elink_params *params)
4898 {
4899 #ifndef EXCLUDE_LINK_RESET
4900 	struct elink_dev *cb = params->cb;
4901 	u16 val16, lane;
4902 	elink_sfp_e3_set_transmitter(params, phy, 0);
4903 	elink_set_mdio_emac_per_phy(cb, params);
4904 	elink_set_aer_mmd(params, phy);
4905 	/* Global register */
4906 	elink_warpcore_reset_lane(cb, phy, 1);
4907 
4908 	/* Clear loopback settings (if any) */
4909 	/* 10G & 20G */
4910 	elink_cl45_read_and_write(cb, phy, MDIO_WC_DEVAD,
4911 				  MDIO_WC_REG_COMBO_IEEE0_MIICTRL, 0xBFFF);
4912 
4913 	elink_cl45_read_and_write(cb, phy, MDIO_WC_DEVAD,
4914 				  MDIO_WC_REG_IEEE0BLK_MIICNTL, 0xfffe);
4915 
4916 	/* Update those 1-copy registers */
4917 	CL22_WR_OVER_CL45(cb, phy, MDIO_REG_BANK_AER_BLOCK,
4918 			  MDIO_AER_BLOCK_AER_REG, 0);
4919 	/* Enable 1G MDIO (1-copy) */
4920 	elink_cl45_read_and_write(cb, phy, MDIO_WC_DEVAD,
4921 				  MDIO_WC_REG_XGXSBLK0_XGXSCONTROL,
4922 				  ~0x10);
4923 
4924 	elink_cl45_read_and_write(cb, phy, MDIO_WC_DEVAD,
4925 				  MDIO_WC_REG_XGXSBLK1_LANECTRL2, 0xff00);
4926 	lane = elink_get_warpcore_lane(phy, params);
4927 	/* Disable CL36 PCS Tx */
4928 	elink_cl45_read(cb, phy, MDIO_WC_DEVAD,
4929 			MDIO_WC_REG_XGXSBLK1_LANECTRL0, &val16);
4930 	val16 |= (0x11 << lane);
4931 	if (phy->flags & ELINK_FLAGS_WC_DUAL_MODE)
4932 		val16 |= (0x22 << lane);
4933 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4934 			 MDIO_WC_REG_XGXSBLK1_LANECTRL0, val16);
4935 
4936 	elink_cl45_read(cb, phy, MDIO_WC_DEVAD,
4937 			MDIO_WC_REG_XGXSBLK1_LANECTRL1, &val16);
4938 	val16 &= ~(0x0303 << (lane << 1));
4939 	val16 |= (0x0101 << (lane << 1));
4940 	if (phy->flags & ELINK_FLAGS_WC_DUAL_MODE) {
4941 		val16 &= ~(0x0c0c << (lane << 1));
4942 		val16 |= (0x0404 << (lane << 1));
4943 	}
4944 
4945 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4946 			 MDIO_WC_REG_XGXSBLK1_LANECTRL1, val16);
4947 	/* Restore AER */
4948 	elink_set_aer_mmd(params, phy);
4949 #endif
4950 
4951 }
4952 
elink_set_warpcore_loopback(struct elink_phy * phy,struct elink_params * params)4953 static void elink_set_warpcore_loopback(struct elink_phy *phy,
4954 					struct elink_params *params)
4955 {
4956 #ifdef ELINK_INCLUDE_LOOPBACK
4957 	struct elink_dev *cb = params->cb;
4958 	u16 val16;
4959 	u32 lane;
4960 	ELINK_DEBUG_P2(cb, "Setting Warpcore loopback type %x, speed %d\n",
4961 		       params->loopback_mode, phy->req_line_speed);
4962 
4963 	if (phy->req_line_speed < ELINK_SPEED_10000 ||
4964 	    phy->supported & ELINK_SUPPORTED_20000baseKR2_Full) {
4965 		/* 10/100/1000/20G-KR2 */
4966 
4967 		/* Update those 1-copy registers */
4968 		CL22_WR_OVER_CL45(cb, phy, MDIO_REG_BANK_AER_BLOCK,
4969 				  MDIO_AER_BLOCK_AER_REG, 0);
4970 		/* Enable 1G MDIO (1-copy) */
4971 		elink_cl45_read_or_write(cb, phy, MDIO_WC_DEVAD,
4972 					 MDIO_WC_REG_XGXSBLK0_XGXSCONTROL,
4973 					 0x10);
4974 		/* Set 1G loopback based on lane (1-copy) */
4975 		lane = elink_get_warpcore_lane(phy, params);
4976 		elink_cl45_read(cb, phy, MDIO_WC_DEVAD,
4977 				MDIO_WC_REG_XGXSBLK1_LANECTRL2, &val16);
4978 		val16 |= (1<<lane);
4979 		if (phy->flags & ELINK_FLAGS_WC_DUAL_MODE)
4980 			val16 |= (2<<lane);
4981 		elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
4982 				 MDIO_WC_REG_XGXSBLK1_LANECTRL2,
4983 				 val16);
4984 
4985 		/* Switch back to 4-copy registers */
4986 		elink_set_aer_mmd(params, phy);
4987 	} else {
4988 		/* 10G / 20G-DXGXS */
4989 		elink_cl45_read_or_write(cb, phy, MDIO_WC_DEVAD,
4990 					 MDIO_WC_REG_COMBO_IEEE0_MIICTRL,
4991 					 0x4000);
4992 		elink_cl45_read_or_write(cb, phy, MDIO_WC_DEVAD,
4993 					 MDIO_WC_REG_IEEE0BLK_MIICNTL, 0x1);
4994 	}
4995 #endif // #ifdef ELINK_INCLUDE_LOOPBACK
4996 }
4997 #endif // EXCLUDE_NON_COMMON_INIT
4998 #endif // #ifndef EXCLUDE_WARPCORE
4999 
5000 #ifdef INCLUDE_WARPCORE_UC_LOAD
elink_warpcore_powerdown_secondport_lanes(struct elink_dev * cb,struct elink_phy * phy)5001 static void elink_warpcore_powerdown_secondport_lanes(struct elink_dev *cb,
5002                                                       struct elink_phy *phy)
5003 {
5004 	u16 path_swap_ovr, path_swap, i;
5005 	u8 power_down_lanes[4];
5006 
5007 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
5008 			 MDIO_WC_REG_XGXSBLK1_LANETEST0, 0);
5009 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
5010 			 MDIO_WC_REG_XGXS_X2_CONTROL2, 0x29FB);
5011 
5012 	/* Figure out path swap value */
5013 	path_swap_ovr = REG_RD(cb, MISC_REG_TWO_PORT_PATH_SWAP_OVWR);
5014 	if (path_swap_ovr & 0x1)
5015 		path_swap = (path_swap_ovr & 0x2);
5016 	else
5017 		path_swap = REG_RD(cb, MISC_REG_TWO_PORT_PATH_SWAP);
5018 
5019 	/* Find which lanes to power down according to path swap value */
5020 	if (path_swap) {
5021 		power_down_lanes[0] = 1;
5022 		power_down_lanes[1] = 1;
5023 		power_down_lanes[2] = 0;
5024 		power_down_lanes[3] = 1;
5025 	} else {
5026 		power_down_lanes[0] = 0;
5027 		power_down_lanes[1] = 1;
5028 		power_down_lanes[2] = 1;
5029 		power_down_lanes[3] = 1;
5030 	}
5031 
5032 	/* Go through lanes which should be powered down */
5033 	for (i = 0; i < 4; i++) {
5034 		if (power_down_lanes[i]) {
5035 			elink_cl45_read_or_write(cb, phy, MDIO_WC_DEVAD,
5036 						 MDIO_WC_REG_XGXSBLK1_LANECTRL3,
5037 						 (1 << i) | (1 << (4+i)) |
5038 						 (1 << 11));
5039 
5040 			elink_cl45_read_and_write(
5041 				cb, phy, MDIO_WC_DEVAD,
5042 				MDIO_WC_REG_XGXSBLK1_LANECTRL0,
5043 				~((u16)((1 << i) | (1 << (4+i)))));
5044 		}
5045 	}
5046 }
5047 #endif //INCLUDE_WARPCORE_UC_LOAD
5048 
5049 #ifdef INCLUDE_WARPCORE_UC_LOAD
5050 /**
5051  * elink_warpcore_sequencer
5052  *
5053  * @param cb
5054  * @param phy
5055  * @param enable - sequencer
5056  *
5057  * @return u32
5058  *
5059  * Before starting any of the specific speed/protocol flow,
5060  * there's need disable the sequencer and once all
5061  * configurations are made the sequencer will be enabled again.
5062  * That way it is guaranteed that improper link won't be
5063  * established during the init phase.
5064  */
elink_warpcore_sequencer(struct elink_dev * cb,struct elink_phy * phy,u8 enable)5065 static void elink_warpcore_sequencer(struct elink_dev *cb,
5066 				     struct elink_phy *phy,
5067 				     u8 enable){
5068 
5069 	u16 val16;
5070 	elink_cl45_read(cb, phy, MDIO_WC_DEVAD,
5071 			MDIO_WC_REG_XGXSBLK0_XGXSCONTROL, &val16);
5072 	if(enable)
5073 		val16 |= 0x2000;
5074 	else
5075 		val16 &= 0xDFFF;
5076 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
5077 			 MDIO_WC_REG_XGXSBLK0_XGXSCONTROL, val16);
5078 }
5079 
elink_warpcore_set_lane_swap(struct elink_dev * cb,struct elink_phy * phy,u32 wc_lane_config)5080 static void elink_warpcore_set_lane_swap(struct elink_dev *cb,
5081 					 struct elink_phy *phy,
5082 					 u32 wc_lane_config)
5083 {
5084 	u16 rx_lane_swap, tx_lane_swap, val16;
5085 	rx_lane_swap = ((wc_lane_config &
5086 			SHARED_HW_CFG_LANE_SWAP_CFG_RX_MASK) >>
5087 			SHARED_HW_CFG_LANE_SWAP_CFG_RX_SHIFT);
5088 
5089 	tx_lane_swap = ((wc_lane_config &
5090 			SHARED_HW_CFG_LANE_SWAP_CFG_TX_MASK) >>
5091 			SHARED_HW_CFG_LANE_SWAP_CFG_TX_SHIFT);
5092 
5093 	/* Rx Lanes */
5094 	elink_cl45_read(cb, phy, MDIO_WC_DEVAD,
5095 			MDIO_WC_REG_XGXS_RX_LN_SWAP1, &val16);
5096 	val16 &= 0xFF00;
5097 	val16 |= rx_lane_swap;
5098 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
5099 			MDIO_WC_REG_XGXS_RX_LN_SWAP1, val16);
5100 
5101 	/* Tx Lanes */
5102 	elink_cl45_read(cb, phy, MDIO_WC_DEVAD,
5103 			MDIO_WC_REG_XGXS_TX_LN_SWAP1, &val16);
5104 	val16 &= 0xFF00;
5105 	val16 |= tx_lane_swap;
5106 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
5107 			MDIO_WC_REG_XGXS_TX_LN_SWAP1, val16);
5108 }
5109 
elink_warpcore_set_lane_polarity(struct elink_dev * cb,struct elink_phy * phy,u32 wc_lane_config)5110 static void elink_warpcore_set_lane_polarity(struct elink_dev *cb,
5111 					     struct elink_phy *phy,
5112 					     u32 wc_lane_config)
5113 {
5114 	/* Set RX polarity on all lanes; flip and enable the flip. */
5115 	if (wc_lane_config & SHARED_HW_CFG_RX_LANE0_POL_FLIP_ENABLED)
5116 		elink_cl45_read_or_write(cb, phy, MDIO_WC_DEVAD,
5117 					 MDIO_WC_REG_RX0_PCI_CTRL, (3<<2));
5118 	if (wc_lane_config & SHARED_HW_CFG_RX_LANE1_POL_FLIP_ENABLED)
5119 		elink_cl45_read_or_write(cb, phy, MDIO_WC_DEVAD,
5120 					 MDIO_WC_REG_RX1_PCI_CTRL, (3<<2));
5121 	if (wc_lane_config & SHARED_HW_CFG_RX_LANE2_POL_FLIP_ENABLED)
5122 		elink_cl45_read_or_write(cb, phy, MDIO_WC_DEVAD,
5123 					 MDIO_WC_REG_RX2_PCI_CTRL, (3<<2));
5124 	if (wc_lane_config & SHARED_HW_CFG_RX_LANE3_POL_FLIP_ENABLED)
5125 		elink_cl45_read_or_write(cb, phy, MDIO_WC_DEVAD,
5126 					 MDIO_WC_REG_RX3_PCI_CTRL, (3<<2));
5127 	/* Set TX polarity on all lanes */
5128 	if (wc_lane_config & SHARED_HW_CFG_TX_LANE0_POL_FLIP_ENABLED)
5129 		elink_cl45_read_or_write(cb, phy, MDIO_WC_DEVAD,
5130 					 MDIO_WC_REG_TX0_ANA_CTRL0, (1<<5));
5131 	if (wc_lane_config & SHARED_HW_CFG_TX_LANE1_POL_FLIP_ENABLED)
5132 		elink_cl45_read_or_write(cb, phy, MDIO_WC_DEVAD,
5133 					 MDIO_WC_REG_TX1_ANA_CTRL0, (1<<5));
5134 	if (wc_lane_config & SHARED_HW_CFG_TX_LANE2_POL_FLIP_ENABLED)
5135 		elink_cl45_read_or_write(cb, phy, MDIO_WC_DEVAD,
5136 					 MDIO_WC_REG_TX2_ANA_CTRL0, (1<<5));
5137 	if (wc_lane_config & SHARED_HW_CFG_TX_LANE3_POL_FLIP_ENABLED)
5138 		elink_cl45_read_or_write(cb, phy, MDIO_WC_DEVAD,
5139 					 MDIO_WC_REG_TX3_ANA_CTRL0, (1<<5));
5140 }
5141 
elink_reset_warpcore(struct elink_dev * cb)5142 static elink_status_t elink_reset_warpcore(struct elink_dev *cb)
5143 {
5144 	u16 time;
5145 	u32 pll_lock;
5146 	ELINK_DEBUG_P0(cb, "Resetting Warpcore\n");
5147 
5148 	REG_WR(cb, MISC_REG_WC0_RESET, 0xE);
5149 	MSLEEP(cb, 1);
5150 	REG_WR(cb, MISC_REG_WC0_RESET, 0xF);
5151 
5152 	for(time = 0; time < ELINK_MDIO_ACCESS_TIMEOUT; time++) {
5153 		MSLEEP(cb, 1);
5154 		pll_lock = REG_RD(cb, MISC_REG_WC0_PLL_LOCK);
5155 		if (pll_lock & 0x1) {
5156 			/* Flush all TX fifo */
5157 			REG_WR(cb, MISC_REG_WC0_RESET, 0x3FF);
5158 			break;
5159 		}
5160 	}
5161 	if (time == ELINK_MDIO_ACCESS_TIMEOUT) {
5162 		ELINK_DEBUG_P0(cb, "BUG! WARPCORE is still in reset!\n");
5163 		return ELINK_STATUS_ERROR;
5164 	}
5165 
5166 	return ELINK_STATUS_OK;
5167 }
5168 
5169 
elink_warpcore_set_quad_mode(struct elink_dev * cb,struct elink_phy * phy)5170 static void elink_warpcore_set_quad_mode(struct elink_dev *cb,
5171 					 struct elink_phy *phy)
5172 {
5173 	u16 lane, val;
5174 	/* Need to set lanes 0..3 */
5175 	for (lane = 0; lane < WC_LANE_MAX; lane++) {
5176 		CL22_WR_OVER_CL45(cb, phy, MDIO_REG_BANK_AER_BLOCK,
5177 				  MDIO_AER_BLOCK_AER_REG, lane);
5178 		/* Reset Asic lane */
5179 		elink_warpcore_reset_lane(cb, phy, 1);
5180 		// This access is required only for version 0xd101 of the WC FW
5181 		elink_cl45_read(cb, phy, MDIO_WC_DEVAD,
5182 				MDIO_WC_REG_CL72_USERB0_CL72_MISC4_CONTROL,
5183 				&val);
5184 		elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
5185 				 MDIO_WC_REG_CL72_USERB0_CL72_MISC4_CONTROL,
5186 				 (val & 0xfe07) | 0x78);
5187 
5188 		elink_cl45_read_or_write(cb, phy, MDIO_WC_DEVAD,
5189 					 MDIO_WC_REG_DSC_SMC, 0x8000);
5190 
5191 		/* Set on clock compensation in WC */
5192 		elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
5193 				 MDIO_WC_REG_RX66_CONTROL, 0x7415);
5194 
5195 		/* Set on clock compensation in WC
5196 		 * For WC/B0 programming register 0x8104 to value 0x8091 insures
5197 		 * that clock comensation in cl48 modes is enabled during
5198 		 * multi-port modes, and disabled during single port modes.
5199 		 */
5200 		elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
5201 				 MDIO_WC_REG_XGXSBLK2_UNICORE_MODE_10G,
5202 				 0x8091);
5203 	}
5204 }
5205 
elink_warpcore_set_dual_mode(struct elink_dev * cb,struct elink_phy * phy,u32 shmem_base)5206 static void elink_warpcore_set_dual_mode(struct elink_dev *cb,
5207 					 struct elink_phy *phy,
5208 					 u32 shmem_base)
5209 {
5210 	u16 lane, val;
5211 	u32 serdes_net_if;
5212 	for (lane = 0; lane < WC_LANE_MAX; lane++) {
5213 		CL22_WR_OVER_CL45(cb, phy, MDIO_REG_BANK_AER_BLOCK,
5214 				  MDIO_AER_BLOCK_AER_REG, lane);
5215 
5216 		elink_cl45_read(cb, phy, MDIO_WC_DEVAD,
5217 				MDIO_WC_REG_CL72_USERB0_CL72_MISC4_CONTROL,
5218 				&val);
5219 		elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
5220 				 MDIO_WC_REG_CL72_USERB0_CL72_MISC4_CONTROL,
5221 				 (val & 0xfe07) | 0x50);
5222 		elink_cl45_read_or_write(cb, phy, MDIO_WC_DEVAD,
5223 					 MDIO_WC_REG_CL49_USERB0_CTRL,
5224 					(3<<6));
5225 
5226 		/* Set on clock compensation in WC
5227 		 * For WC/B0 programming register 0x8104 to value 0x8091 insures
5228 		 * that clock comensation in cl48 modes is enabled during
5229 		 * multi-port modes, and disabled during single port modes.
5230 		 */
5231 		elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
5232 				 MDIO_WC_REG_XGXSBLK2_UNICORE_MODE_10G,
5233 				 0x8091);
5234 		/* In dual port mode XFI compensation should be disabled by
5235 		 * setting 0x83C0[14:13] to 2'b00 for each port.
5236 		 */
5237 		elink_cl45_read_and_write(cb, phy, MDIO_WC_DEVAD,
5238 					  MDIO_WC_REG_RX66_CONTROL, ~(3<<13));
5239 
5240 		/* This access is required only for version 0xd101 of the
5241 		 * WC FW
5242 		 */
5243 		elink_cl45_read_or_write(cb, phy, MDIO_WC_DEVAD,
5244 					 MDIO_WC_REG_DSC_SMC, 0x8000);
5245 	}
5246 
5247 	serdes_net_if = (REG_RD(cb, shmem_base +
5248 				OFFSETOF(struct shmem_region, dev_info.
5249 					 port_hw_config[0].default_cfg)) &
5250 			 PORT_HW_CFG_NET_SERDES_IF_MASK);
5251 
5252 	/* Configure both ports to 20G to enable clock working on both ports */
5253 	for (lane = 0x200; lane <= 0x201; lane++) {
5254 		CL22_WR_OVER_CL45(cb, phy, MDIO_REG_BANK_AER_BLOCK,
5255 				  MDIO_AER_BLOCK_AER_REG, lane);
5256 		elink_warpcore_reset_lane(cb, phy, 1);
5257 		if (serdes_net_if == PORT_HW_CFG_NET_SERDES_IF_DXGXS)
5258 			elink_warpcore_set_20G_DXGXS(cb, phy, lane);
5259 	}
5260 	elink_cl45_read_or_write(cb, phy, MDIO_WC_DEVAD,
5261 				 MDIO_WC_REG_RX1_PCI_CTRL, (1<<11));
5262 	elink_cl45_read_or_write(cb, phy, MDIO_WC_DEVAD,
5263 				 MDIO_WC_REG_RX3_PCI_CTRL, (1<<11));
5264 }
5265 
elink_warpcore_load_uc(struct elink_dev * cb,struct elink_phy * phy)5266 static elink_status_t elink_warpcore_load_uc(struct elink_dev *cb,
5267 				   struct elink_phy *phy)
5268 {
5269 	u16 val, cnt;
5270 	CL22_WR_OVER_CL45(cb, phy, MDIO_REG_BANK_AER_BLOCK,
5271 			  MDIO_AER_BLOCK_AER_REG, 0);
5272 
5273 	/* Enable External memory access */
5274 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
5275 			 MDIO_WC_REG_UC_INFO_B0_DEAD_TRAP, 0x0000);
5276 
5277 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
5278 			 MDIO_WC_REG_MICROBLK_CMD3, 0x0407);
5279 
5280 	/* Initialize ram memory prior to programming it */
5281 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
5282 			 MDIO_WC_REG_MICROBLK_CMD, 0x8000);
5283 
5284 	/* Wait for completion of memory initialization */
5285 	for (cnt = 0; cnt < ELINK_WC_UC_TIMEOUT; cnt++) {
5286 		elink_cl45_read(cb, phy, MDIO_WC_DEVAD,
5287 				MDIO_WC_REG_MICROBLK_DL_STATUS , &val);
5288 		if (val & 0x8000)
5289 			break;
5290 		USLEEP(cb, 1);
5291 	}
5292 	if (cnt >= ELINK_WC_UC_TIMEOUT)
5293 		return ELINK_STATUS_TIMEOUT;
5294 
5295 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD, MDIO_WC_REG_UC_INFO_B1_CRC, 0);
5296 
5297 	/* Load Warpcore microcode for E3 and after */
5298 	elink_cb_load_warpcore_microcode();
5299 
5300 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
5301 			 MDIO_WC_REG_MICROBLK_CMD3, 0x0404);
5302 
5303 	/* Turn off read_for_cmd bit, check for FW setting this later. */
5304 	elink_cl45_read_and_write(cb, phy, MDIO_WC_DEVAD,
5305 				  MDIO_WC_REG_DSC1B0_UC_CTRL,
5306 				  ~MDIO_WC_REG_DSC1B0_UC_CTRL_RDY4CMD);
5307 
5308 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
5309 			 MDIO_WC_REG_MICROBLK_CMD, 0x0810);
5310 	for (cnt = 0; cnt < ELINK_WC_RDY_TIMEOUT_MSEC; cnt++) {
5311 		elink_cl45_read(cb, phy, MDIO_WC_DEVAD,
5312 				MDIO_WC_REG_DSC1B0_UC_CTRL, &val);
5313 		if (val & MDIO_WC_REG_DSC1B0_UC_CTRL_RDY4CMD)
5314 			break;
5315 		MSLEEP(cb, 1);
5316 	}
5317 	if (cnt >= ELINK_WC_RDY_TIMEOUT_MSEC)
5318 		return ELINK_STATUS_TIMEOUT;
5319 
5320 	return ELINK_STATUS_OK;
5321 }
5322 #endif /* INCLUDE_WARPCORE_UC_LOAD */
5323 
elink_sync_link(struct elink_params * params,struct elink_vars * vars)5324 static void elink_sync_link(struct elink_params *params,
5325 			     struct elink_vars *vars)
5326 {
5327 #ifdef ELINK_DEBUG
5328 	struct elink_dev *cb = params->cb;
5329 #endif
5330 	u8 link_10g_plus;
5331 	if (vars->link_status & LINK_STATUS_PHYSICAL_LINK_FLAG)
5332 		vars->phy_flags |= PHY_PHYSICAL_LINK_FLAG;
5333 	vars->link_up = (vars->link_status & LINK_STATUS_LINK_UP);
5334 	if (vars->link_up) {
5335 		ELINK_DEBUG_P0(cb, "phy link up\n");
5336 
5337 		vars->phy_link_up = 1;
5338 		vars->duplex = DUPLEX_FULL;
5339 		switch (vars->link_status &
5340 			LINK_STATUS_SPEED_AND_DUPLEX_MASK) {
5341 		case ELINK_LINK_10THD:
5342 			vars->duplex = DUPLEX_HALF;
5343 			/* Fall thru */
5344 		case ELINK_LINK_10TFD:
5345 			vars->line_speed = ELINK_SPEED_10;
5346 			break;
5347 
5348 		case ELINK_LINK_100TXHD:
5349 			vars->duplex = DUPLEX_HALF;
5350 			/* Fall thru */
5351 		case ELINK_LINK_100T4:
5352 		case ELINK_LINK_100TXFD:
5353 			vars->line_speed = ELINK_SPEED_100;
5354 			break;
5355 
5356 		case ELINK_LINK_1000THD:
5357 			vars->duplex = DUPLEX_HALF;
5358 			/* Fall thru */
5359 		case ELINK_LINK_1000TFD:
5360 			vars->line_speed = ELINK_SPEED_1000;
5361 			break;
5362 
5363 		case ELINK_LINK_2500THD:
5364 			vars->duplex = DUPLEX_HALF;
5365 			/* Fall thru */
5366 		case ELINK_LINK_2500TFD:
5367 			vars->line_speed = ELINK_SPEED_2500;
5368 			break;
5369 
5370 		case ELINK_LINK_10GTFD:
5371 			vars->line_speed = ELINK_SPEED_10000;
5372 			break;
5373 		case ELINK_LINK_20GTFD:
5374 			vars->line_speed = ELINK_SPEED_20000;
5375 			break;
5376 		default:
5377 			break;
5378 		}
5379 		vars->flow_ctrl = 0;
5380 		if (vars->link_status & LINK_STATUS_TX_FLOW_CONTROL_ENABLED)
5381 			vars->flow_ctrl |= ELINK_FLOW_CTRL_TX;
5382 
5383 		if (vars->link_status & LINK_STATUS_RX_FLOW_CONTROL_ENABLED)
5384 			vars->flow_ctrl |= ELINK_FLOW_CTRL_RX;
5385 
5386 		if (!vars->flow_ctrl)
5387 			vars->flow_ctrl = ELINK_FLOW_CTRL_NONE;
5388 
5389 		if (vars->line_speed &&
5390 		    ((vars->line_speed == ELINK_SPEED_10) ||
5391 		     (vars->line_speed == ELINK_SPEED_100))) {
5392 			vars->phy_flags |= PHY_SGMII_FLAG;
5393 		} else {
5394 			vars->phy_flags &= ~PHY_SGMII_FLAG;
5395 		}
5396 #ifndef EXCLUDE_WARPCORE
5397 		if (vars->line_speed &&
5398 		    ELINK_USES_WARPCORE(params->chip_id) &&
5399 		    (vars->line_speed == ELINK_SPEED_1000))
5400 			vars->phy_flags |= PHY_SGMII_FLAG;
5401 #endif /* #ifndef EXCLUDE_WARPCORE */
5402 		/* Anything 10 and over uses the bmac */
5403 		link_10g_plus = (vars->line_speed >= ELINK_SPEED_10000);
5404 
5405 		if (link_10g_plus) {
5406 			if (ELINK_USES_WARPCORE(params->chip_id))
5407 				vars->mac_type = ELINK_MAC_TYPE_XMAC;
5408 			else
5409 				vars->mac_type = ELINK_MAC_TYPE_BMAC;
5410 		} else {
5411 			if (ELINK_USES_WARPCORE(params->chip_id))
5412 				vars->mac_type = ELINK_MAC_TYPE_UMAC;
5413 			else
5414 				vars->mac_type = ELINK_MAC_TYPE_EMAC;
5415 		}
5416 	} else { /* Link down */
5417 		ELINK_DEBUG_P0(cb, "phy link down\n");
5418 
5419 		vars->phy_link_up = 0;
5420 
5421 		vars->line_speed = 0;
5422 		vars->duplex = DUPLEX_FULL;
5423 		vars->flow_ctrl = ELINK_FLOW_CTRL_NONE;
5424 
5425 		/* Indicate no mac active */
5426 		vars->mac_type = ELINK_MAC_TYPE_NONE;
5427 		if (vars->link_status & LINK_STATUS_PHYSICAL_LINK_FLAG)
5428 			vars->phy_flags |= PHY_HALF_OPEN_CONN_FLAG;
5429 		if (vars->link_status & LINK_STATUS_SFP_TX_FAULT)
5430 			vars->phy_flags |= PHY_SFP_TX_FAULT_FLAG;
5431 	}
5432 }
5433 
elink_link_status_update(struct elink_params * params,struct elink_vars * vars)5434 void elink_link_status_update(struct elink_params *params,
5435 			      struct elink_vars *vars)
5436 {
5437 	struct elink_dev *cb = params->cb;
5438 	u8 port = params->port;
5439 	u32 sync_offset, media_types;
5440 	/* Update PHY configuration */
5441 	set_phy_vars(params, vars);
5442 
5443 	vars->link_status = REG_RD(cb, params->shmem_base +
5444 				   OFFSETOF(struct shmem_region,
5445 					    port_mb[port].link_status));
5446 
5447 	/* Force link UP in non LOOPBACK_EXT loopback mode(s) */
5448 	if (params->loopback_mode != ELINK_LOOPBACK_NONE &&
5449 	    params->loopback_mode != ELINK_LOOPBACK_EXT)
5450 		vars->link_status |= LINK_STATUS_LINK_UP;
5451 
5452 #ifndef EXCLUDE_NON_COMMON_INIT
5453 #ifndef EXCLUDE_WARPCORE
5454 	if (elink_eee_has_cap(params))
5455 		vars->eee_status = REG_RD(cb, params->shmem2_base +
5456 					  OFFSETOF(struct shmem2_region,
5457 						   eee_status[params->port]));
5458 #endif
5459 #endif
5460 
5461 	vars->phy_flags = PHY_XGXS_FLAG;
5462 	elink_sync_link(params, vars);
5463 	/* Sync media type */
5464 	sync_offset = params->shmem_base +
5465 			OFFSETOF(struct shmem_region,
5466 				 dev_info.port_hw_config[port].media_type);
5467 	media_types = REG_RD(cb, sync_offset);
5468 
5469 	params->phy[ELINK_INT_PHY].media_type =
5470 		(media_types & PORT_HW_CFG_MEDIA_TYPE_PHY0_MASK) >>
5471 		PORT_HW_CFG_MEDIA_TYPE_PHY0_SHIFT;
5472 	params->phy[ELINK_EXT_PHY1].media_type =
5473 		(media_types & PORT_HW_CFG_MEDIA_TYPE_PHY1_MASK) >>
5474 		PORT_HW_CFG_MEDIA_TYPE_PHY1_SHIFT;
5475 	params->phy[ELINK_EXT_PHY2].media_type =
5476 		(media_types & PORT_HW_CFG_MEDIA_TYPE_PHY2_MASK) >>
5477 		PORT_HW_CFG_MEDIA_TYPE_PHY2_SHIFT;
5478 	ELINK_DEBUG_P1(cb, "media_types = 0x%x\n", media_types);
5479 
5480 	/* Sync AEU offset */
5481 	sync_offset = params->shmem_base +
5482 			OFFSETOF(struct shmem_region,
5483 				 dev_info.port_hw_config[port].aeu_int_mask);
5484 
5485 	vars->aeu_int_mask = REG_RD(cb, sync_offset);
5486 
5487 	/* Sync PFC status */
5488 	if (vars->link_status & LINK_STATUS_PFC_ENABLED)
5489 		params->feature_config_flags |=
5490 					ELINK_FEATURE_CONFIG_PFC_ENABLED;
5491 	else
5492 		params->feature_config_flags &=
5493 					~ELINK_FEATURE_CONFIG_PFC_ENABLED;
5494 
5495 	if (SHMEM2_HAS(cb, params->shmem2_base, link_attr_sync))
5496 		params->link_attr_sync = SHMEM2_RD(cb, params->shmem2_base,
5497 						 link_attr_sync[params->port]);
5498 
5499 	ELINK_DEBUG_P3(cb, "link_status 0x%x  phy_link_up %x int_mask 0x%x\n",
5500 		 vars->link_status, vars->phy_link_up, vars->aeu_int_mask);
5501 	ELINK_DEBUG_P3(cb, "line_speed %x  duplex %x  flow_ctrl 0x%x\n",
5502 		 vars->line_speed, vars->duplex, vars->flow_ctrl);
5503 }
5504 
5505 #ifndef EXCLUDE_NON_COMMON_INIT
5506 #ifndef EXCLUDE_XGXS
elink_set_master_ln(struct elink_params * params,struct elink_phy * phy)5507 static void elink_set_master_ln(struct elink_params *params,
5508 				struct elink_phy *phy)
5509 {
5510 	struct elink_dev *cb = params->cb;
5511 	u16 new_master_ln, ser_lane;
5512 	ser_lane = ((params->lane_config &
5513 		     PORT_HW_CFG_LANE_SWAP_CFG_MASTER_MASK) >>
5514 		    PORT_HW_CFG_LANE_SWAP_CFG_MASTER_SHIFT);
5515 
5516 	/* Set the master_ln for AN */
5517 	CL22_RD_OVER_CL45(cb, phy,
5518 			  MDIO_REG_BANK_XGXS_BLOCK2,
5519 			  MDIO_XGXS_BLOCK2_TEST_MODE_LANE,
5520 			  &new_master_ln);
5521 
5522 	CL22_WR_OVER_CL45(cb, phy,
5523 			  MDIO_REG_BANK_XGXS_BLOCK2 ,
5524 			  MDIO_XGXS_BLOCK2_TEST_MODE_LANE,
5525 			  (new_master_ln | ser_lane));
5526 }
5527 
elink_reset_unicore(struct elink_params * params,struct elink_phy * phy,u8 set_serdes)5528 static elink_status_t elink_reset_unicore(struct elink_params *params,
5529 			       struct elink_phy *phy,
5530 			       u8 set_serdes)
5531 {
5532 	struct elink_dev *cb = params->cb;
5533 	u16 mii_control;
5534 	u16 i;
5535 	CL22_RD_OVER_CL45(cb, phy,
5536 			  MDIO_REG_BANK_COMBO_IEEE0,
5537 			  MDIO_COMBO_IEEE0_MII_CONTROL, &mii_control);
5538 
5539 	/* Reset the unicore */
5540 	CL22_WR_OVER_CL45(cb, phy,
5541 			  MDIO_REG_BANK_COMBO_IEEE0,
5542 			  MDIO_COMBO_IEEE0_MII_CONTROL,
5543 			  (mii_control |
5544 			   MDIO_COMBO_IEEO_MII_CONTROL_RESET));
5545 #ifndef EXCLUDE_SERDES
5546 	if (set_serdes)
5547 		elink_set_serdes_access(cb, params->port);
5548 #endif /* EXCLUDE_SERDES */
5549 
5550 	/* Wait for the reset to self clear */
5551 	for (i = 0; i < ELINK_MDIO_ACCESS_TIMEOUT; i++) {
5552 		USLEEP(cb, 5);
5553 
5554 		/* The reset erased the previous bank value */
5555 		CL22_RD_OVER_CL45(cb, phy,
5556 				  MDIO_REG_BANK_COMBO_IEEE0,
5557 				  MDIO_COMBO_IEEE0_MII_CONTROL,
5558 				  &mii_control);
5559 
5560 		if (!(mii_control & MDIO_COMBO_IEEO_MII_CONTROL_RESET)) {
5561 			USLEEP(cb, 5);
5562 			return ELINK_STATUS_OK;
5563 		}
5564 	}
5565 
5566 	elink_cb_event_log(cb, ELINK_LOG_ID_PHY_UNINITIALIZED, params->port); // "Warning: PHY was not initialized,"
5567 			     // " Port %d\n",
5568 
5569 	ELINK_DEBUG_P0(cb, "BUG! XGXS is still in reset!\n");
5570 	return ELINK_STATUS_ERROR;
5571 
5572 }
5573 
elink_set_swap_lanes(struct elink_params * params,struct elink_phy * phy)5574 static void elink_set_swap_lanes(struct elink_params *params,
5575 				 struct elink_phy *phy)
5576 {
5577 	struct elink_dev *cb = params->cb;
5578 	/* Each two bits represents a lane number:
5579 	 * No swap is 0123 => 0x1b no need to enable the swap
5580 	 */
5581 	u16 rx_lane_swap, tx_lane_swap;
5582 
5583 	rx_lane_swap = ((params->lane_config &
5584 			 PORT_HW_CFG_LANE_SWAP_CFG_RX_MASK) >>
5585 			PORT_HW_CFG_LANE_SWAP_CFG_RX_SHIFT);
5586 	tx_lane_swap = ((params->lane_config &
5587 			 PORT_HW_CFG_LANE_SWAP_CFG_TX_MASK) >>
5588 			PORT_HW_CFG_LANE_SWAP_CFG_TX_SHIFT);
5589 
5590 	if (rx_lane_swap != 0x1b) {
5591 		CL22_WR_OVER_CL45(cb, phy,
5592 				  MDIO_REG_BANK_XGXS_BLOCK2,
5593 				  MDIO_XGXS_BLOCK2_RX_LN_SWAP,
5594 				  (rx_lane_swap |
5595 				   MDIO_XGXS_BLOCK2_RX_LN_SWAP_ENABLE |
5596 				   MDIO_XGXS_BLOCK2_RX_LN_SWAP_FORCE_ENABLE));
5597 	} else {
5598 		CL22_WR_OVER_CL45(cb, phy,
5599 				  MDIO_REG_BANK_XGXS_BLOCK2,
5600 				  MDIO_XGXS_BLOCK2_RX_LN_SWAP, 0);
5601 	}
5602 
5603 	if (tx_lane_swap != 0x1b) {
5604 		CL22_WR_OVER_CL45(cb, phy,
5605 				  MDIO_REG_BANK_XGXS_BLOCK2,
5606 				  MDIO_XGXS_BLOCK2_TX_LN_SWAP,
5607 				  (tx_lane_swap |
5608 				   MDIO_XGXS_BLOCK2_TX_LN_SWAP_ENABLE));
5609 	} else {
5610 		CL22_WR_OVER_CL45(cb, phy,
5611 				  MDIO_REG_BANK_XGXS_BLOCK2,
5612 				  MDIO_XGXS_BLOCK2_TX_LN_SWAP, 0);
5613 	}
5614 }
5615 
elink_set_parallel_detection(struct elink_phy * phy,struct elink_params * params)5616 static void elink_set_parallel_detection(struct elink_phy *phy,
5617 					 struct elink_params *params)
5618 {
5619 	struct elink_dev *cb = params->cb;
5620 	u16 control2;
5621 	CL22_RD_OVER_CL45(cb, phy,
5622 			  MDIO_REG_BANK_SERDES_DIGITAL,
5623 			  MDIO_SERDES_DIGITAL_A_1000X_CONTROL2,
5624 			  &control2);
5625 	if (phy->speed_cap_mask & PORT_HW_CFG_SPEED_CAPABILITY_D0_1G)
5626 		control2 |= MDIO_SERDES_DIGITAL_A_1000X_CONTROL2_PRL_DT_EN;
5627 	else
5628 		control2 &= ~MDIO_SERDES_DIGITAL_A_1000X_CONTROL2_PRL_DT_EN;
5629 	ELINK_DEBUG_P2(cb, "phy->speed_cap_mask = 0x%x, control2 = 0x%x\n",
5630 		phy->speed_cap_mask, control2);
5631 	CL22_WR_OVER_CL45(cb, phy,
5632 			  MDIO_REG_BANK_SERDES_DIGITAL,
5633 			  MDIO_SERDES_DIGITAL_A_1000X_CONTROL2,
5634 			  control2);
5635 
5636 	if ((phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT) &&
5637 	     (phy->speed_cap_mask &
5638 		    PORT_HW_CFG_SPEED_CAPABILITY_D0_10G)) {
5639 		ELINK_DEBUG_P0(cb, "XGXS\n");
5640 
5641 		CL22_WR_OVER_CL45(cb, phy,
5642 				 MDIO_REG_BANK_10G_PARALLEL_DETECT,
5643 				 MDIO_10G_PARALLEL_DETECT_PAR_DET_10G_LINK,
5644 				 MDIO_10G_PARALLEL_DETECT_PAR_DET_10G_LINK_CNT);
5645 
5646 		CL22_RD_OVER_CL45(cb, phy,
5647 				  MDIO_REG_BANK_10G_PARALLEL_DETECT,
5648 				  MDIO_10G_PARALLEL_DETECT_PAR_DET_10G_CONTROL,
5649 				  &control2);
5650 
5651 
5652 		control2 |=
5653 		    MDIO_10G_PARALLEL_DETECT_PAR_DET_10G_CONTROL_PARDET10G_EN;
5654 
5655 		CL22_WR_OVER_CL45(cb, phy,
5656 				  MDIO_REG_BANK_10G_PARALLEL_DETECT,
5657 				  MDIO_10G_PARALLEL_DETECT_PAR_DET_10G_CONTROL,
5658 				  control2);
5659 
5660 		/* Disable parallel detection of HiG */
5661 		CL22_WR_OVER_CL45(cb, phy,
5662 				  MDIO_REG_BANK_XGXS_BLOCK2,
5663 				  MDIO_XGXS_BLOCK2_UNICORE_MODE_10G,
5664 				  MDIO_XGXS_BLOCK2_UNICORE_MODE_10G_CX4_XGXS |
5665 				  MDIO_XGXS_BLOCK2_UNICORE_MODE_10G_HIGIG_XGXS);
5666 	}
5667 }
5668 
elink_set_autoneg(struct elink_phy * phy,struct elink_params * params,struct elink_vars * vars,u8 enable_cl73)5669 static void elink_set_autoneg(struct elink_phy *phy,
5670 			      struct elink_params *params,
5671 			      struct elink_vars *vars,
5672 			      u8 enable_cl73)
5673 {
5674 	struct elink_dev *cb = params->cb;
5675 	u16 reg_val;
5676 
5677 	/* CL37 Autoneg */
5678 	CL22_RD_OVER_CL45(cb, phy,
5679 			  MDIO_REG_BANK_COMBO_IEEE0,
5680 			  MDIO_COMBO_IEEE0_MII_CONTROL, &reg_val);
5681 
5682 	/* CL37 Autoneg Enabled */
5683 	if (vars->line_speed == ELINK_SPEED_AUTO_NEG)
5684 		reg_val |= MDIO_COMBO_IEEO_MII_CONTROL_AN_EN;
5685 	else /* CL37 Autoneg Disabled */
5686 		reg_val &= ~(MDIO_COMBO_IEEO_MII_CONTROL_AN_EN |
5687 			     MDIO_COMBO_IEEO_MII_CONTROL_RESTART_AN);
5688 
5689 	CL22_WR_OVER_CL45(cb, phy,
5690 			  MDIO_REG_BANK_COMBO_IEEE0,
5691 			  MDIO_COMBO_IEEE0_MII_CONTROL, reg_val);
5692 
5693 	/* Enable/Disable Autodetection */
5694 
5695 	CL22_RD_OVER_CL45(cb, phy,
5696 			  MDIO_REG_BANK_SERDES_DIGITAL,
5697 			  MDIO_SERDES_DIGITAL_A_1000X_CONTROL1, &reg_val);
5698 	reg_val &= ~(MDIO_SERDES_DIGITAL_A_1000X_CONTROL1_SIGNAL_DETECT_EN |
5699 		    MDIO_SERDES_DIGITAL_A_1000X_CONTROL1_INVERT_SIGNAL_DETECT);
5700 	reg_val |= MDIO_SERDES_DIGITAL_A_1000X_CONTROL1_FIBER_MODE;
5701 	if (vars->line_speed == ELINK_SPEED_AUTO_NEG)
5702 		reg_val |= MDIO_SERDES_DIGITAL_A_1000X_CONTROL1_AUTODET;
5703 	else
5704 		reg_val &= ~MDIO_SERDES_DIGITAL_A_1000X_CONTROL1_AUTODET;
5705 
5706 	CL22_WR_OVER_CL45(cb, phy,
5707 			  MDIO_REG_BANK_SERDES_DIGITAL,
5708 			  MDIO_SERDES_DIGITAL_A_1000X_CONTROL1, reg_val);
5709 
5710 	/* Enable TetonII and BAM autoneg */
5711 	CL22_RD_OVER_CL45(cb, phy,
5712 			  MDIO_REG_BANK_BAM_NEXT_PAGE,
5713 			  MDIO_BAM_NEXT_PAGE_MP5_NEXT_PAGE_CTRL,
5714 			  &reg_val);
5715 	if (vars->line_speed == ELINK_SPEED_AUTO_NEG) {
5716 		/* Enable BAM aneg Mode and TetonII aneg Mode */
5717 		reg_val |= (MDIO_BAM_NEXT_PAGE_MP5_NEXT_PAGE_CTRL_BAM_MODE |
5718 			    MDIO_BAM_NEXT_PAGE_MP5_NEXT_PAGE_CTRL_TETON_AN);
5719 	} else {
5720 		/* TetonII and BAM Autoneg Disabled */
5721 		reg_val &= ~(MDIO_BAM_NEXT_PAGE_MP5_NEXT_PAGE_CTRL_BAM_MODE |
5722 			     MDIO_BAM_NEXT_PAGE_MP5_NEXT_PAGE_CTRL_TETON_AN);
5723 	}
5724 	CL22_WR_OVER_CL45(cb, phy,
5725 			  MDIO_REG_BANK_BAM_NEXT_PAGE,
5726 			  MDIO_BAM_NEXT_PAGE_MP5_NEXT_PAGE_CTRL,
5727 			  reg_val);
5728 
5729 	if (enable_cl73) {
5730 		/* Enable Cl73 FSM status bits */
5731 		CL22_WR_OVER_CL45(cb, phy,
5732 				  MDIO_REG_BANK_CL73_USERB0,
5733 				  MDIO_CL73_USERB0_CL73_UCTRL,
5734 				  0xe);
5735 
5736 		/* Enable BAM Station Manager*/
5737 		CL22_WR_OVER_CL45(cb, phy,
5738 			MDIO_REG_BANK_CL73_USERB0,
5739 			MDIO_CL73_USERB0_CL73_BAM_CTRL1,
5740 			MDIO_CL73_USERB0_CL73_BAM_CTRL1_BAM_EN |
5741 			MDIO_CL73_USERB0_CL73_BAM_CTRL1_BAM_STATION_MNGR_EN |
5742 			MDIO_CL73_USERB0_CL73_BAM_CTRL1_BAM_NP_AFTER_BP_EN);
5743 
5744 		/* Advertise CL73 link speeds */
5745 		CL22_RD_OVER_CL45(cb, phy,
5746 				  MDIO_REG_BANK_CL73_IEEEB1,
5747 				  MDIO_CL73_IEEEB1_AN_ADV2,
5748 				  &reg_val);
5749 		if (phy->speed_cap_mask &
5750 		    PORT_HW_CFG_SPEED_CAPABILITY_D0_10G)
5751 			reg_val |= MDIO_CL73_IEEEB1_AN_ADV2_ADVR_10G_KX4;
5752 		if (phy->speed_cap_mask &
5753 		    PORT_HW_CFG_SPEED_CAPABILITY_D0_1G)
5754 			reg_val |= MDIO_CL73_IEEEB1_AN_ADV2_ADVR_1000M_KX;
5755 
5756 		CL22_WR_OVER_CL45(cb, phy,
5757 				  MDIO_REG_BANK_CL73_IEEEB1,
5758 				  MDIO_CL73_IEEEB1_AN_ADV2,
5759 				  reg_val);
5760 
5761 		/* CL73 Autoneg Enabled */
5762 		reg_val = MDIO_CL73_IEEEB0_CL73_AN_CONTROL_AN_EN;
5763 
5764 	} else /* CL73 Autoneg Disabled */
5765 		reg_val = 0;
5766 
5767 	CL22_WR_OVER_CL45(cb, phy,
5768 			  MDIO_REG_BANK_CL73_IEEEB0,
5769 			  MDIO_CL73_IEEEB0_CL73_AN_CONTROL, reg_val);
5770 }
5771 
5772 /* Program SerDes, forced speed */
elink_program_serdes(struct elink_phy * phy,struct elink_params * params,struct elink_vars * vars)5773 static void elink_program_serdes(struct elink_phy *phy,
5774 				 struct elink_params *params,
5775 				 struct elink_vars *vars)
5776 {
5777 	struct elink_dev *cb = params->cb;
5778 	u16 reg_val;
5779 
5780 	/* Program duplex, disable autoneg and sgmii*/
5781 	CL22_RD_OVER_CL45(cb, phy,
5782 			  MDIO_REG_BANK_COMBO_IEEE0,
5783 			  MDIO_COMBO_IEEE0_MII_CONTROL, &reg_val);
5784 	reg_val &= ~(MDIO_COMBO_IEEO_MII_CONTROL_FULL_DUPLEX |
5785 		     MDIO_COMBO_IEEO_MII_CONTROL_AN_EN |
5786 		     MDIO_COMBO_IEEO_MII_CONTROL_MAN_SGMII_SP_MASK);
5787 	if (phy->req_duplex == DUPLEX_FULL)
5788 		reg_val |= MDIO_COMBO_IEEO_MII_CONTROL_FULL_DUPLEX;
5789 	CL22_WR_OVER_CL45(cb, phy,
5790 			  MDIO_REG_BANK_COMBO_IEEE0,
5791 			  MDIO_COMBO_IEEE0_MII_CONTROL, reg_val);
5792 
5793 	/* Program speed
5794 	 *  - needed only if the speed is greater than 1G (2.5G or 10G)
5795 	 */
5796 	CL22_RD_OVER_CL45(cb, phy,
5797 			  MDIO_REG_BANK_SERDES_DIGITAL,
5798 			  MDIO_SERDES_DIGITAL_MISC1, &reg_val);
5799 	/* Clearing the speed value before setting the right speed */
5800 	ELINK_DEBUG_P1(cb, "MDIO_REG_BANK_SERDES_DIGITAL = 0x%x\n", reg_val);
5801 
5802 	reg_val &= ~(MDIO_SERDES_DIGITAL_MISC1_FORCE_SPEED_MASK |
5803 		     MDIO_SERDES_DIGITAL_MISC1_FORCE_SPEED_SEL);
5804 
5805 	if (!((vars->line_speed == ELINK_SPEED_1000) ||
5806 	      (vars->line_speed == ELINK_SPEED_100) ||
5807 	      (vars->line_speed == ELINK_SPEED_10))) {
5808 
5809 		reg_val |= (MDIO_SERDES_DIGITAL_MISC1_REFCLK_SEL_156_25M |
5810 			    MDIO_SERDES_DIGITAL_MISC1_FORCE_SPEED_SEL);
5811 		if (vars->line_speed == ELINK_SPEED_10000)
5812 			reg_val |=
5813 				MDIO_SERDES_DIGITAL_MISC1_FORCE_SPEED_10G_CX4;
5814 	}
5815 
5816 	CL22_WR_OVER_CL45(cb, phy,
5817 			  MDIO_REG_BANK_SERDES_DIGITAL,
5818 			  MDIO_SERDES_DIGITAL_MISC1, reg_val);
5819 
5820 }
5821 
elink_set_brcm_cl37_advertisement(struct elink_phy * phy,struct elink_params * params)5822 static void elink_set_brcm_cl37_advertisement(struct elink_phy *phy,
5823 					      struct elink_params *params)
5824 {
5825 	struct elink_dev *cb = params->cb;
5826 	u16 val = 0;
5827 
5828 	/* Set extended capabilities */
5829 	if (phy->speed_cap_mask & PORT_HW_CFG_SPEED_CAPABILITY_D0_2_5G)
5830 		val |= MDIO_OVER_1G_UP1_2_5G;
5831 	if (phy->speed_cap_mask & PORT_HW_CFG_SPEED_CAPABILITY_D0_10G)
5832 		val |= MDIO_OVER_1G_UP1_10G;
5833 	CL22_WR_OVER_CL45(cb, phy,
5834 			  MDIO_REG_BANK_OVER_1G,
5835 			  MDIO_OVER_1G_UP1, val);
5836 
5837 	CL22_WR_OVER_CL45(cb, phy,
5838 			  MDIO_REG_BANK_OVER_1G,
5839 			  MDIO_OVER_1G_UP3, 0x400);
5840 }
5841 
elink_set_ieee_aneg_advertisement(struct elink_phy * phy,struct elink_params * params,u16 ieee_fc)5842 static void elink_set_ieee_aneg_advertisement(struct elink_phy *phy,
5843 					      struct elink_params *params,
5844 					      u16 ieee_fc)
5845 {
5846 	struct elink_dev *cb = params->cb;
5847 	u16 val;
5848 	/* For AN, we are always publishing full duplex */
5849 
5850 	CL22_WR_OVER_CL45(cb, phy,
5851 			  MDIO_REG_BANK_COMBO_IEEE0,
5852 			  MDIO_COMBO_IEEE0_AUTO_NEG_ADV, ieee_fc);
5853 	CL22_RD_OVER_CL45(cb, phy,
5854 			  MDIO_REG_BANK_CL73_IEEEB1,
5855 			  MDIO_CL73_IEEEB1_AN_ADV1, &val);
5856 	val &= ~MDIO_CL73_IEEEB1_AN_ADV1_PAUSE_BOTH;
5857 	val |= ((ieee_fc<<3) & MDIO_CL73_IEEEB1_AN_ADV1_PAUSE_MASK);
5858 	CL22_WR_OVER_CL45(cb, phy,
5859 			  MDIO_REG_BANK_CL73_IEEEB1,
5860 			  MDIO_CL73_IEEEB1_AN_ADV1, val);
5861 }
5862 
elink_restart_autoneg(struct elink_phy * phy,struct elink_params * params,u8 enable_cl73)5863 static void elink_restart_autoneg(struct elink_phy *phy,
5864 				  struct elink_params *params,
5865 				  u8 enable_cl73)
5866 {
5867 	struct elink_dev *cb = params->cb;
5868 	u16 mii_control;
5869 
5870 	ELINK_DEBUG_P0(cb, "elink_restart_autoneg\n");
5871 	/* Enable and restart BAM/CL37 aneg */
5872 
5873 	if (enable_cl73) {
5874 		CL22_RD_OVER_CL45(cb, phy,
5875 				  MDIO_REG_BANK_CL73_IEEEB0,
5876 				  MDIO_CL73_IEEEB0_CL73_AN_CONTROL,
5877 				  &mii_control);
5878 
5879 		CL22_WR_OVER_CL45(cb, phy,
5880 				  MDIO_REG_BANK_CL73_IEEEB0,
5881 				  MDIO_CL73_IEEEB0_CL73_AN_CONTROL,
5882 				  (mii_control |
5883 				  MDIO_CL73_IEEEB0_CL73_AN_CONTROL_AN_EN |
5884 				  MDIO_CL73_IEEEB0_CL73_AN_CONTROL_RESTART_AN));
5885 	} else {
5886 
5887 		CL22_RD_OVER_CL45(cb, phy,
5888 				  MDIO_REG_BANK_COMBO_IEEE0,
5889 				  MDIO_COMBO_IEEE0_MII_CONTROL,
5890 				  &mii_control);
5891 		ELINK_DEBUG_P1(cb,
5892 			 "elink_restart_autoneg mii_control before = 0x%x\n",
5893 			 mii_control);
5894 		CL22_WR_OVER_CL45(cb, phy,
5895 				  MDIO_REG_BANK_COMBO_IEEE0,
5896 				  MDIO_COMBO_IEEE0_MII_CONTROL,
5897 				  (mii_control |
5898 				   MDIO_COMBO_IEEO_MII_CONTROL_AN_EN |
5899 				   MDIO_COMBO_IEEO_MII_CONTROL_RESTART_AN));
5900 	}
5901 }
5902 
elink_initialize_sgmii_process(struct elink_phy * phy,struct elink_params * params,struct elink_vars * vars)5903 static void elink_initialize_sgmii_process(struct elink_phy *phy,
5904 					   struct elink_params *params,
5905 					   struct elink_vars *vars)
5906 {
5907 	struct elink_dev *cb = params->cb;
5908 	u16 control1;
5909 
5910 	/* In SGMII mode, the unicore is always slave */
5911 
5912 	CL22_RD_OVER_CL45(cb, phy,
5913 			  MDIO_REG_BANK_SERDES_DIGITAL,
5914 			  MDIO_SERDES_DIGITAL_A_1000X_CONTROL1,
5915 			  &control1);
5916 	control1 |= MDIO_SERDES_DIGITAL_A_1000X_CONTROL1_INVERT_SIGNAL_DETECT;
5917 	/* Set sgmii mode (and not fiber) */
5918 	control1 &= ~(MDIO_SERDES_DIGITAL_A_1000X_CONTROL1_FIBER_MODE |
5919 		      MDIO_SERDES_DIGITAL_A_1000X_CONTROL1_AUTODET |
5920 		      MDIO_SERDES_DIGITAL_A_1000X_CONTROL1_MSTR_MODE);
5921 	CL22_WR_OVER_CL45(cb, phy,
5922 			  MDIO_REG_BANK_SERDES_DIGITAL,
5923 			  MDIO_SERDES_DIGITAL_A_1000X_CONTROL1,
5924 			  control1);
5925 
5926 	/* If forced speed */
5927 	if (!(vars->line_speed == ELINK_SPEED_AUTO_NEG)) {
5928 		/* Set speed, disable autoneg */
5929 		u16 mii_control;
5930 
5931 		CL22_RD_OVER_CL45(cb, phy,
5932 				  MDIO_REG_BANK_COMBO_IEEE0,
5933 				  MDIO_COMBO_IEEE0_MII_CONTROL,
5934 				  &mii_control);
5935 		mii_control &= ~(MDIO_COMBO_IEEO_MII_CONTROL_AN_EN |
5936 				 MDIO_COMBO_IEEO_MII_CONTROL_MAN_SGMII_SP_MASK|
5937 				 MDIO_COMBO_IEEO_MII_CONTROL_FULL_DUPLEX);
5938 
5939 		switch (vars->line_speed) {
5940 		case ELINK_SPEED_100:
5941 			mii_control |=
5942 				MDIO_COMBO_IEEO_MII_CONTROL_MAN_SGMII_SP_100;
5943 			break;
5944 		case ELINK_SPEED_1000:
5945 			mii_control |=
5946 				MDIO_COMBO_IEEO_MII_CONTROL_MAN_SGMII_SP_1000;
5947 			break;
5948 		case ELINK_SPEED_10:
5949 			/* There is nothing to set for 10M */
5950 			break;
5951 		default:
5952 			/* Invalid speed for SGMII */
5953 			ELINK_DEBUG_P1(cb, "Invalid line_speed 0x%x\n",
5954 				  vars->line_speed);
5955 			break;
5956 		}
5957 
5958 		/* Setting the full duplex */
5959 		if (phy->req_duplex == DUPLEX_FULL)
5960 			mii_control |=
5961 				MDIO_COMBO_IEEO_MII_CONTROL_FULL_DUPLEX;
5962 		CL22_WR_OVER_CL45(cb, phy,
5963 				  MDIO_REG_BANK_COMBO_IEEE0,
5964 				  MDIO_COMBO_IEEE0_MII_CONTROL,
5965 				  mii_control);
5966 
5967 	} else { /* AN mode */
5968 		/* Enable and restart AN */
5969 		elink_restart_autoneg(phy, params, 0);
5970 	}
5971 }
5972 
5973 /* Link management
5974  */
elink_direct_parallel_detect_used(struct elink_phy * phy,struct elink_params * params)5975 static elink_status_t elink_direct_parallel_detect_used(struct elink_phy *phy,
5976 					     struct elink_params *params)
5977 {
5978 	struct elink_dev *cb = params->cb;
5979 	u16 pd_10g, status2_1000x;
5980 	if (phy->req_line_speed != ELINK_SPEED_AUTO_NEG)
5981 		return ELINK_STATUS_OK;
5982 	CL22_RD_OVER_CL45(cb, phy,
5983 			  MDIO_REG_BANK_SERDES_DIGITAL,
5984 			  MDIO_SERDES_DIGITAL_A_1000X_STATUS2,
5985 			  &status2_1000x);
5986 	CL22_RD_OVER_CL45(cb, phy,
5987 			  MDIO_REG_BANK_SERDES_DIGITAL,
5988 			  MDIO_SERDES_DIGITAL_A_1000X_STATUS2,
5989 			  &status2_1000x);
5990 	if (status2_1000x & MDIO_SERDES_DIGITAL_A_1000X_STATUS2_AN_DISABLED) {
5991 		ELINK_DEBUG_P1(cb, "1G parallel detect link on port %d\n",
5992 			 params->port);
5993 		return 1;
5994 	}
5995 
5996 	CL22_RD_OVER_CL45(cb, phy,
5997 			  MDIO_REG_BANK_10G_PARALLEL_DETECT,
5998 			  MDIO_10G_PARALLEL_DETECT_PAR_DET_10G_STATUS,
5999 			  &pd_10g);
6000 
6001 	if (pd_10g & MDIO_10G_PARALLEL_DETECT_PAR_DET_10G_STATUS_PD_LINK) {
6002 		ELINK_DEBUG_P1(cb, "10G parallel detect link on port %d\n",
6003 			 params->port);
6004 		return 1;
6005 	}
6006 	return ELINK_STATUS_OK;
6007 }
6008 
elink_update_adv_fc(struct elink_phy * phy,struct elink_params * params,struct elink_vars * vars,u32 gp_status)6009 static void elink_update_adv_fc(struct elink_phy *phy,
6010 				struct elink_params *params,
6011 				struct elink_vars *vars,
6012 				u32 gp_status)
6013 {
6014 	u16 ld_pause;   /* local driver */
6015 	u16 lp_pause;   /* link partner */
6016 	u16 pause_result;
6017 	struct elink_dev *cb = params->cb;
6018 	if ((gp_status &
6019 	     (MDIO_GP_STATUS_TOP_AN_STATUS1_CL73_AUTONEG_COMPLETE |
6020 	      MDIO_GP_STATUS_TOP_AN_STATUS1_CL73_MR_LP_NP_AN_ABLE)) ==
6021 	    (MDIO_GP_STATUS_TOP_AN_STATUS1_CL73_AUTONEG_COMPLETE |
6022 	     MDIO_GP_STATUS_TOP_AN_STATUS1_CL73_MR_LP_NP_AN_ABLE)) {
6023 
6024 		CL22_RD_OVER_CL45(cb, phy,
6025 				  MDIO_REG_BANK_CL73_IEEEB1,
6026 				  MDIO_CL73_IEEEB1_AN_ADV1,
6027 				  &ld_pause);
6028 		CL22_RD_OVER_CL45(cb, phy,
6029 				  MDIO_REG_BANK_CL73_IEEEB1,
6030 				  MDIO_CL73_IEEEB1_AN_LP_ADV1,
6031 				  &lp_pause);
6032 		pause_result = (ld_pause &
6033 				MDIO_CL73_IEEEB1_AN_ADV1_PAUSE_MASK) >> 8;
6034 		pause_result |= (lp_pause &
6035 				 MDIO_CL73_IEEEB1_AN_LP_ADV1_PAUSE_MASK) >> 10;
6036 		ELINK_DEBUG_P1(cb, "pause_result CL73 0x%x\n", pause_result);
6037 	} else {
6038 		CL22_RD_OVER_CL45(cb, phy,
6039 				  MDIO_REG_BANK_COMBO_IEEE0,
6040 				  MDIO_COMBO_IEEE0_AUTO_NEG_ADV,
6041 				  &ld_pause);
6042 		CL22_RD_OVER_CL45(cb, phy,
6043 			MDIO_REG_BANK_COMBO_IEEE0,
6044 			MDIO_COMBO_IEEE0_AUTO_NEG_LINK_PARTNER_ABILITY1,
6045 			&lp_pause);
6046 		pause_result = (ld_pause &
6047 				MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_MASK)>>5;
6048 		pause_result |= (lp_pause &
6049 				 MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_MASK)>>7;
6050 		ELINK_DEBUG_P1(cb, "pause_result CL37 0x%x\n", pause_result);
6051 	}
6052 	elink_pause_resolve(vars, pause_result);
6053 
6054 }
6055 
elink_flow_ctrl_resolve(struct elink_phy * phy,struct elink_params * params,struct elink_vars * vars,u32 gp_status)6056 static void elink_flow_ctrl_resolve(struct elink_phy *phy,
6057 				    struct elink_params *params,
6058 				    struct elink_vars *vars,
6059 				    u32 gp_status)
6060 {
6061 #ifdef ELINK_DEBUG
6062 	struct elink_dev *cb = params->cb;
6063 #endif
6064 	vars->flow_ctrl = ELINK_FLOW_CTRL_NONE;
6065 
6066 	/* Resolve from gp_status in case of AN complete and not sgmii */
6067 	if (phy->req_flow_ctrl != ELINK_FLOW_CTRL_AUTO) {
6068 		/* Update the advertised flow-controled of LD/LP in AN */
6069 		if (phy->req_line_speed == ELINK_SPEED_AUTO_NEG)
6070 			elink_update_adv_fc(phy, params, vars, gp_status);
6071 		/* But set the flow-control result as the requested one */
6072 		vars->flow_ctrl = phy->req_flow_ctrl;
6073 	} else if (phy->req_line_speed != ELINK_SPEED_AUTO_NEG)
6074 		vars->flow_ctrl = params->req_fc_auto_adv;
6075 	else if ((gp_status & ELINK_MDIO_AN_CL73_OR_37_COMPLETE) &&
6076 		 (!(vars->phy_flags & PHY_SGMII_FLAG))) {
6077 		if (elink_direct_parallel_detect_used(phy, params)) {
6078 			vars->flow_ctrl = params->req_fc_auto_adv;
6079 			return;
6080 		}
6081 		elink_update_adv_fc(phy, params, vars, gp_status);
6082 	}
6083 	ELINK_DEBUG_P1(cb, "flow_ctrl 0x%x\n", vars->flow_ctrl);
6084 }
6085 
elink_check_fallback_to_cl37(struct elink_phy * phy,struct elink_params * params)6086 static void elink_check_fallback_to_cl37(struct elink_phy *phy,
6087 					 struct elink_params *params)
6088 {
6089 	struct elink_dev *cb = params->cb;
6090 	u16 rx_status, ustat_val, cl37_fsm_received;
6091 	ELINK_DEBUG_P0(cb, "elink_check_fallback_to_cl37\n");
6092 	/* Step 1: Make sure signal is detected */
6093 	CL22_RD_OVER_CL45(cb, phy,
6094 			  MDIO_REG_BANK_RX0,
6095 			  MDIO_RX0_RX_STATUS,
6096 			  &rx_status);
6097 	if ((rx_status & MDIO_RX0_RX_STATUS_SIGDET) !=
6098 	    (MDIO_RX0_RX_STATUS_SIGDET)) {
6099 		ELINK_DEBUG_P1(cb, "Signal is not detected. Restoring CL73."
6100 			     "rx_status(0x80b0) = 0x%x\n", rx_status);
6101 		CL22_WR_OVER_CL45(cb, phy,
6102 				  MDIO_REG_BANK_CL73_IEEEB0,
6103 				  MDIO_CL73_IEEEB0_CL73_AN_CONTROL,
6104 				  MDIO_CL73_IEEEB0_CL73_AN_CONTROL_AN_EN);
6105 		return;
6106 	}
6107 	/* Step 2: Check CL73 state machine */
6108 	CL22_RD_OVER_CL45(cb, phy,
6109 			  MDIO_REG_BANK_CL73_USERB0,
6110 			  MDIO_CL73_USERB0_CL73_USTAT1,
6111 			  &ustat_val);
6112 	if ((ustat_val &
6113 	     (MDIO_CL73_USERB0_CL73_USTAT1_LINK_STATUS_CHECK |
6114 	      MDIO_CL73_USERB0_CL73_USTAT1_AN_GOOD_CHECK_BAM37)) !=
6115 	    (MDIO_CL73_USERB0_CL73_USTAT1_LINK_STATUS_CHECK |
6116 	      MDIO_CL73_USERB0_CL73_USTAT1_AN_GOOD_CHECK_BAM37)) {
6117 		ELINK_DEBUG_P1(cb, "CL73 state-machine is not stable. "
6118 			     "ustat_val(0x8371) = 0x%x\n", ustat_val);
6119 		return;
6120 	}
6121 	/* Step 3: Check CL37 Message Pages received to indicate LP
6122 	 * supports only CL37
6123 	 */
6124 	CL22_RD_OVER_CL45(cb, phy,
6125 			  MDIO_REG_BANK_REMOTE_PHY,
6126 			  MDIO_REMOTE_PHY_MISC_RX_STATUS,
6127 			  &cl37_fsm_received);
6128 	if ((cl37_fsm_received &
6129 	     (MDIO_REMOTE_PHY_MISC_RX_STATUS_CL37_FSM_RECEIVED_OVER1G_MSG |
6130 	     MDIO_REMOTE_PHY_MISC_RX_STATUS_CL37_FSM_RECEIVED_BRCM_OUI_MSG)) !=
6131 	    (MDIO_REMOTE_PHY_MISC_RX_STATUS_CL37_FSM_RECEIVED_OVER1G_MSG |
6132 	      MDIO_REMOTE_PHY_MISC_RX_STATUS_CL37_FSM_RECEIVED_BRCM_OUI_MSG)) {
6133 		ELINK_DEBUG_P1(cb, "No CL37 FSM were received. "
6134 			     "misc_rx_status(0x8330) = 0x%x\n",
6135 			 cl37_fsm_received);
6136 		return;
6137 	}
6138 	/* The combined cl37/cl73 fsm state information indicating that
6139 	 * we are connected to a device which does not support cl73, but
6140 	 * does support cl37 BAM. In this case we disable cl73 and
6141 	 * restart cl37 auto-neg
6142 	 */
6143 
6144 	/* Disable CL73 */
6145 	CL22_WR_OVER_CL45(cb, phy,
6146 			  MDIO_REG_BANK_CL73_IEEEB0,
6147 			  MDIO_CL73_IEEEB0_CL73_AN_CONTROL,
6148 			  0);
6149 	/* Restart CL37 autoneg */
6150 	elink_restart_autoneg(phy, params, 0);
6151 	ELINK_DEBUG_P0(cb, "Disabling CL73, and restarting CL37 autoneg\n");
6152 }
6153 
elink_xgxs_an_resolve(struct elink_phy * phy,struct elink_params * params,struct elink_vars * vars,u32 gp_status)6154 static void elink_xgxs_an_resolve(struct elink_phy *phy,
6155 				  struct elink_params *params,
6156 				  struct elink_vars *vars,
6157 				  u32 gp_status)
6158 {
6159 	if (gp_status & ELINK_MDIO_AN_CL73_OR_37_COMPLETE)
6160 		vars->link_status |=
6161 			LINK_STATUS_AUTO_NEGOTIATE_COMPLETE;
6162 
6163 	if (elink_direct_parallel_detect_used(phy, params))
6164 		vars->link_status |=
6165 			LINK_STATUS_PARALLEL_DETECTION_USED;
6166 }
6167 #endif /* EXCLUDE_XGXS */
elink_get_link_speed_duplex(struct elink_phy * phy,struct elink_params * params,struct elink_vars * vars,u16 is_link_up,u16 speed_mask,u16 is_duplex)6168 static elink_status_t elink_get_link_speed_duplex(struct elink_phy *phy,
6169 				     struct elink_params *params,
6170 				      struct elink_vars *vars,
6171 				      u16 is_link_up,
6172 				      u16 speed_mask,
6173 				      u16 is_duplex)
6174 {
6175 #ifdef ELINK_DEBUG
6176 	struct elink_dev *cb = params->cb;
6177 #endif
6178 	if (phy->req_line_speed == ELINK_SPEED_AUTO_NEG)
6179 		vars->link_status |= LINK_STATUS_AUTO_NEGOTIATE_ENABLED;
6180 	if (is_link_up) {
6181 		ELINK_DEBUG_P0(cb, "phy link up\n");
6182 
6183 		vars->phy_link_up = 1;
6184 		vars->link_status |= LINK_STATUS_LINK_UP;
6185 
6186 		switch (speed_mask) {
6187 		case ELINK_GP_STATUS_10M:
6188 			vars->line_speed = ELINK_SPEED_10;
6189 			if (is_duplex == DUPLEX_FULL)
6190 				vars->link_status |= ELINK_LINK_10TFD;
6191 			else
6192 				vars->link_status |= ELINK_LINK_10THD;
6193 			break;
6194 
6195 		case ELINK_GP_STATUS_100M:
6196 			vars->line_speed = ELINK_SPEED_100;
6197 			if (is_duplex == DUPLEX_FULL)
6198 				vars->link_status |= ELINK_LINK_100TXFD;
6199 			else
6200 				vars->link_status |= ELINK_LINK_100TXHD;
6201 			break;
6202 
6203 		case ELINK_GP_STATUS_1G:
6204 		case ELINK_GP_STATUS_1G_KX:
6205 			vars->line_speed = ELINK_SPEED_1000;
6206 			if (is_duplex == DUPLEX_FULL)
6207 				vars->link_status |= ELINK_LINK_1000TFD;
6208 			else
6209 				vars->link_status |= ELINK_LINK_1000THD;
6210 			break;
6211 
6212 		case ELINK_GP_STATUS_2_5G:
6213 			vars->line_speed = ELINK_SPEED_2500;
6214 			if (is_duplex == DUPLEX_FULL)
6215 				vars->link_status |= ELINK_LINK_2500TFD;
6216 			else
6217 				vars->link_status |= ELINK_LINK_2500THD;
6218 			break;
6219 
6220 		case ELINK_GP_STATUS_5G:
6221 		case ELINK_GP_STATUS_6G:
6222 			ELINK_DEBUG_P1(cb,
6223 				 "link speed unsupported  gp_status 0x%x\n",
6224 				  speed_mask);
6225 			return ELINK_STATUS_ERROR;
6226 
6227 		case ELINK_GP_STATUS_10G_KX4:
6228 		case ELINK_GP_STATUS_10G_HIG:
6229 		case ELINK_GP_STATUS_10G_CX4:
6230 		case ELINK_GP_STATUS_10G_KR:
6231 		case ELINK_GP_STATUS_10G_SFI:
6232 		case ELINK_GP_STATUS_10G_XFI:
6233 			vars->line_speed = ELINK_SPEED_10000;
6234 			vars->link_status |= ELINK_LINK_10GTFD;
6235 			break;
6236 		case ELINK_GP_STATUS_20G_DXGXS:
6237 		case ELINK_GP_STATUS_20G_KR2:
6238 			vars->line_speed = ELINK_SPEED_20000;
6239 			vars->link_status |= ELINK_LINK_20GTFD;
6240 			break;
6241 		default:
6242 			ELINK_DEBUG_P1(cb,
6243 				  "link speed unsupported gp_status 0x%x\n",
6244 				  speed_mask);
6245 			return ELINK_STATUS_ERROR;
6246 		}
6247 	} else { /* link_down */
6248 		ELINK_DEBUG_P0(cb, "phy link down\n");
6249 
6250 		vars->phy_link_up = 0;
6251 
6252 		vars->duplex = DUPLEX_FULL;
6253 		vars->flow_ctrl = ELINK_FLOW_CTRL_NONE;
6254 		vars->mac_type = ELINK_MAC_TYPE_NONE;
6255 	}
6256 	ELINK_DEBUG_P2(cb, " phy_link_up %x line_speed %d\n",
6257 		    vars->phy_link_up, vars->line_speed);
6258 	return ELINK_STATUS_OK;
6259 }
6260 
6261 #ifndef EXCLUDE_XGXS
6262 static elink_status_t
elink_link_settings_status(struct elink_phy * phy,struct elink_params * params,struct elink_vars * vars)6263 elink_link_settings_status(struct elink_phy *phy, struct elink_params *params,
6264     struct elink_vars *vars)
6265 {
6266 	struct elink_dev *cb = params->cb;
6267 
6268 	u16 gp_status, duplex = DUPLEX_HALF, link_up = 0, speed_mask;
6269 	elink_status_t rc = ELINK_STATUS_OK;
6270 
6271 	/* Read gp_status */
6272 	CL22_RD_OVER_CL45(cb, phy,
6273 			  MDIO_REG_BANK_GP_STATUS,
6274 			  MDIO_GP_STATUS_TOP_AN_STATUS1,
6275 			  &gp_status);
6276 	if (gp_status & MDIO_GP_STATUS_TOP_AN_STATUS1_DUPLEX_STATUS)
6277 		duplex = DUPLEX_FULL;
6278 	if (gp_status & MDIO_GP_STATUS_TOP_AN_STATUS1_LINK_STATUS)
6279 		link_up = 1;
6280 	speed_mask = gp_status & ELINK_GP_STATUS_SPEED_MASK;
6281 	ELINK_DEBUG_P3(cb, "gp_status 0x%x, is_link_up %d, speed_mask 0x%x\n",
6282 		       gp_status, link_up, speed_mask);
6283 	rc = elink_get_link_speed_duplex(phy, params, vars, link_up, speed_mask,
6284 					 duplex);
6285 	if (rc == ELINK_STATUS_ERROR)
6286 		return rc;
6287 
6288 	if (gp_status & MDIO_GP_STATUS_TOP_AN_STATUS1_LINK_STATUS) {
6289 		if (ELINK_SINGLE_MEDIA_DIRECT(params)) {
6290 			vars->duplex = duplex;
6291 			elink_flow_ctrl_resolve(phy, params, vars, gp_status);
6292 			if (phy->req_line_speed == ELINK_SPEED_AUTO_NEG)
6293 				elink_xgxs_an_resolve(phy, params, vars,
6294 						      gp_status);
6295 		}
6296 	} else { /* Link_down */
6297 		if ((phy->req_line_speed == ELINK_SPEED_AUTO_NEG) &&
6298 		    ELINK_SINGLE_MEDIA_DIRECT(params)) {
6299 			/* Check signal is detected */
6300 			elink_check_fallback_to_cl37(phy, params);
6301 		}
6302 	}
6303 
6304 	/* Read LP advertised speeds*/
6305 	if (ELINK_SINGLE_MEDIA_DIRECT(params) &&
6306 	    (vars->link_status & LINK_STATUS_AUTO_NEGOTIATE_COMPLETE)) {
6307 		u16 val;
6308 
6309 		CL22_RD_OVER_CL45(cb, phy, MDIO_REG_BANK_CL73_IEEEB1,
6310 				  MDIO_CL73_IEEEB1_AN_LP_ADV2, &val);
6311 
6312 		if (val & MDIO_CL73_IEEEB1_AN_ADV2_ADVR_1000M_KX)
6313 			vars->link_status |=
6314 				LINK_STATUS_LINK_PARTNER_1000TFD_CAPABLE;
6315 		if (val & (MDIO_CL73_IEEEB1_AN_ADV2_ADVR_10G_KX4 |
6316 			   MDIO_CL73_IEEEB1_AN_ADV2_ADVR_10G_KR))
6317 			vars->link_status |=
6318 				LINK_STATUS_LINK_PARTNER_10GXFD_CAPABLE;
6319 
6320 		CL22_RD_OVER_CL45(cb, phy, MDIO_REG_BANK_OVER_1G,
6321 				  MDIO_OVER_1G_LP_UP1, &val);
6322 
6323 		if (val & MDIO_OVER_1G_UP1_2_5G)
6324 			vars->link_status |=
6325 				LINK_STATUS_LINK_PARTNER_2500XFD_CAPABLE;
6326 		if (val & (MDIO_OVER_1G_UP1_10G | MDIO_OVER_1G_UP1_10GH))
6327 			vars->link_status |=
6328 				LINK_STATUS_LINK_PARTNER_10GXFD_CAPABLE;
6329 	}
6330 
6331 	ELINK_DEBUG_P3(cb, "duplex %x  flow_ctrl 0x%x link_status 0x%x\n",
6332 		   vars->duplex, vars->flow_ctrl, vars->link_status);
6333 	return rc;
6334 }
6335 #endif // EXCLUDE_XGXS
6336 
6337 #ifndef EXCLUDE_WARPCORE
6338 static elink_status_t
elink_warpcore_read_status(struct elink_phy * phy,struct elink_params * params,struct elink_vars * vars)6339 elink_warpcore_read_status(struct elink_phy *phy, struct elink_params *params,
6340     struct elink_vars *vars)
6341 {
6342 	struct elink_dev *cb = params->cb;
6343 	u8 lane;
6344 	u16 gp_status1, gp_speed, link_up, duplex = DUPLEX_FULL;
6345 	elink_status_t rc = ELINK_STATUS_OK;
6346 	lane = elink_get_warpcore_lane(phy, params);
6347 	/* Read gp_status */
6348 	if ((params->loopback_mode) &&
6349 	    (phy->flags & ELINK_FLAGS_WC_DUAL_MODE)) {
6350 		elink_cl45_read(cb, phy, MDIO_WC_DEVAD,
6351 				MDIO_WC_REG_DIGITAL5_LINK_STATUS, &link_up);
6352 		elink_cl45_read(cb, phy, MDIO_WC_DEVAD,
6353 				MDIO_WC_REG_DIGITAL5_LINK_STATUS, &link_up);
6354 		link_up &= 0x1;
6355 	} else if ((phy->req_line_speed > ELINK_SPEED_10000) &&
6356 		(phy->supported & ELINK_SUPPORTED_20000baseMLD2_Full)) {
6357 		u16 temp_link_up;
6358 		elink_cl45_read(cb, phy, MDIO_WC_DEVAD,
6359 				1, &temp_link_up);
6360 		elink_cl45_read(cb, phy, MDIO_WC_DEVAD,
6361 				1, &link_up);
6362 		ELINK_DEBUG_P2(cb, "PCS RX link status = 0x%x-->0x%x\n",
6363 			       temp_link_up, link_up);
6364 		link_up &= (1<<2);
6365 		if (link_up)
6366 			elink_ext_phy_resolve_fc(phy, params, vars);
6367 	} else {
6368 		elink_cl45_read(cb, phy, MDIO_WC_DEVAD,
6369 				MDIO_WC_REG_GP2_STATUS_GP_2_1,
6370 				&gp_status1);
6371 		ELINK_DEBUG_P1(cb, "0x81d1 = 0x%x\n", gp_status1);
6372 		/* Check for either KR, 1G, or AN up. */
6373 		link_up = ((gp_status1 >> 8) |
6374 			   (gp_status1 >> 12) |
6375 			   (gp_status1)) &
6376 			(1 << lane);
6377 		if (phy->supported & ELINK_SUPPORTED_20000baseKR2_Full) {
6378 			u16 an_link;
6379 			elink_cl45_read(cb, phy, MDIO_AN_DEVAD,
6380 					MDIO_AN_REG_STATUS, &an_link);
6381 			elink_cl45_read(cb, phy, MDIO_AN_DEVAD,
6382 					MDIO_AN_REG_STATUS, &an_link);
6383 			link_up |= (an_link & (1<<2));
6384 		}
6385 		if (link_up && ELINK_SINGLE_MEDIA_DIRECT(params)) {
6386 			u16 pd, gp_status4;
6387 			if (phy->req_line_speed == ELINK_SPEED_AUTO_NEG) {
6388 				/* Check Autoneg complete */
6389 				elink_cl45_read(cb, phy, MDIO_WC_DEVAD,
6390 						MDIO_WC_REG_GP2_STATUS_GP_2_4,
6391 						&gp_status4);
6392 				if (gp_status4 & ((1<<12)<<lane))
6393 					vars->link_status |=
6394 					LINK_STATUS_AUTO_NEGOTIATE_COMPLETE;
6395 
6396 				/* Check parallel detect used */
6397 				elink_cl45_read(cb, phy, MDIO_WC_DEVAD,
6398 						MDIO_WC_REG_PAR_DET_10G_STATUS,
6399 						&pd);
6400 				if (pd & (1<<15))
6401 					vars->link_status |=
6402 					LINK_STATUS_PARALLEL_DETECTION_USED;
6403 			}
6404 			elink_ext_phy_resolve_fc(phy, params, vars);
6405 			vars->duplex = duplex;
6406 		}
6407 	}
6408 
6409 	if ((vars->link_status & LINK_STATUS_AUTO_NEGOTIATE_COMPLETE) &&
6410 	    ELINK_SINGLE_MEDIA_DIRECT(params)) {
6411 		u16 val;
6412 
6413 		elink_cl45_read(cb, phy, MDIO_AN_DEVAD,
6414 				MDIO_AN_REG_LP_AUTO_NEG2, &val);
6415 
6416 		if (val & MDIO_CL73_IEEEB1_AN_ADV2_ADVR_1000M_KX)
6417 			vars->link_status |=
6418 				LINK_STATUS_LINK_PARTNER_1000TFD_CAPABLE;
6419 		if (val & (MDIO_CL73_IEEEB1_AN_ADV2_ADVR_10G_KX4 |
6420 			   MDIO_CL73_IEEEB1_AN_ADV2_ADVR_10G_KR))
6421 			vars->link_status |=
6422 				LINK_STATUS_LINK_PARTNER_10GXFD_CAPABLE;
6423 
6424 		elink_cl45_read(cb, phy, MDIO_WC_DEVAD,
6425 				MDIO_WC_REG_DIGITAL3_LP_UP1, &val);
6426 
6427 		if (val & MDIO_OVER_1G_UP1_2_5G)
6428 			vars->link_status |=
6429 				LINK_STATUS_LINK_PARTNER_2500XFD_CAPABLE;
6430 		if (val & (MDIO_OVER_1G_UP1_10G | MDIO_OVER_1G_UP1_10GH))
6431 			vars->link_status |=
6432 				LINK_STATUS_LINK_PARTNER_10GXFD_CAPABLE;
6433 
6434 	}
6435 
6436 
6437 	if (lane < 2) {
6438 		elink_cl45_read(cb, phy, MDIO_WC_DEVAD,
6439 				MDIO_WC_REG_GP2_STATUS_GP_2_2, &gp_speed);
6440 	} else {
6441 		elink_cl45_read(cb, phy, MDIO_WC_DEVAD,
6442 				MDIO_WC_REG_GP2_STATUS_GP_2_3, &gp_speed);
6443 	}
6444 	ELINK_DEBUG_P2(cb, "lane %d gp_speed 0x%x\n", lane, gp_speed);
6445 
6446 	if ((lane & 1) == 0)
6447 		gp_speed <<= 8;
6448 	gp_speed &= 0x3f00;
6449 	link_up = !!link_up;
6450 
6451 	/* Reset the TX FIFO to fix SGMII issue */
6452 	rc = elink_get_link_speed_duplex(phy, params, vars, link_up, gp_speed,
6453 					 duplex);
6454 
6455 	/* In case of KR link down, start up the recovering procedure */
6456 	if ((!link_up) && (phy->media_type == ELINK_ETH_PHY_KR) &&
6457 	    (!(phy->flags & ELINK_FLAGS_WC_DUAL_MODE)))
6458 		vars->rx_tx_asic_rst = MAX_KR_LINK_RETRY;
6459 
6460 	ELINK_DEBUG_P3(cb, "duplex %x  flow_ctrl 0x%x link_status 0x%x\n",
6461 		   vars->duplex, vars->flow_ctrl, vars->link_status);
6462 	return rc;
6463 }
6464 #endif /* #ifndef EXCLUDE_WARPCORE */
6465 #ifndef EXCLUDE_XGXS
elink_set_gmii_tx_driver(struct elink_params * params)6466 static void elink_set_gmii_tx_driver(struct elink_params *params)
6467 {
6468 	struct elink_dev *cb = params->cb;
6469 	struct elink_phy *phy = &params->phy[ELINK_INT_PHY];
6470 	u16 lp_up2;
6471 	u16 tx_driver;
6472 	u16 bank;
6473 
6474 	/* Read precomp */
6475 	CL22_RD_OVER_CL45(cb, phy,
6476 			  MDIO_REG_BANK_OVER_1G,
6477 			  MDIO_OVER_1G_LP_UP2, &lp_up2);
6478 
6479 	/* Bits [10:7] at lp_up2, positioned at [15:12] */
6480 	lp_up2 = (((lp_up2 & MDIO_OVER_1G_LP_UP2_PREEMPHASIS_MASK) >>
6481 		   MDIO_OVER_1G_LP_UP2_PREEMPHASIS_SHIFT) <<
6482 		  MDIO_TX0_TX_DRIVER_PREEMPHASIS_SHIFT);
6483 
6484 	if (lp_up2 == 0)
6485 		return;
6486 
6487 	for (bank = MDIO_REG_BANK_TX0; bank <= MDIO_REG_BANK_TX3;
6488 	      bank += (MDIO_REG_BANK_TX1 - MDIO_REG_BANK_TX0)) {
6489 		CL22_RD_OVER_CL45(cb, phy,
6490 				  bank,
6491 				  MDIO_TX0_TX_DRIVER, &tx_driver);
6492 
6493 		/* Replace tx_driver bits [15:12] */
6494 		if (lp_up2 !=
6495 		    (tx_driver & MDIO_TX0_TX_DRIVER_PREEMPHASIS_MASK)) {
6496 			tx_driver &= ~MDIO_TX0_TX_DRIVER_PREEMPHASIS_MASK;
6497 			tx_driver |= lp_up2;
6498 			CL22_WR_OVER_CL45(cb, phy,
6499 					  bank,
6500 					  MDIO_TX0_TX_DRIVER, tx_driver);
6501 		}
6502 	}
6503 }
6504 
elink_emac_program(struct elink_params * params,struct elink_vars * vars)6505 static elink_status_t elink_emac_program(struct elink_params *params,
6506 			      struct elink_vars *vars)
6507 {
6508 	struct elink_dev *cb = params->cb;
6509 	u8 port = params->port;
6510 	u16 mode = 0;
6511 
6512 	ELINK_DEBUG_P0(cb, "setting link speed & duplex\n");
6513 	elink_bits_dis(cb, GRCBASE_EMAC0 + port*0x400 +
6514 		       EMAC_REG_EMAC_MODE,
6515 		       (EMAC_MODE_25G_MODE |
6516 			EMAC_MODE_PORT_MII_10M |
6517 			EMAC_MODE_HALF_DUPLEX));
6518 	switch (vars->line_speed) {
6519 	case ELINK_SPEED_10:
6520 		mode |= EMAC_MODE_PORT_MII_10M;
6521 		break;
6522 
6523 	case ELINK_SPEED_100:
6524 		mode |= EMAC_MODE_PORT_MII;
6525 		break;
6526 
6527 	case ELINK_SPEED_1000:
6528 		mode |= EMAC_MODE_PORT_GMII;
6529 		break;
6530 
6531 	case ELINK_SPEED_2500:
6532 		mode |= (EMAC_MODE_25G_MODE | EMAC_MODE_PORT_GMII);
6533 		break;
6534 
6535 	default:
6536 		/* 10G not valid for EMAC */
6537 		ELINK_DEBUG_P1(cb, "Invalid line_speed 0x%x\n",
6538 			   vars->line_speed);
6539 		return ELINK_STATUS_ERROR;
6540 	}
6541 
6542 	if (vars->duplex == DUPLEX_HALF)
6543 		mode |= EMAC_MODE_HALF_DUPLEX;
6544 	elink_bits_en(cb,
6545 		      GRCBASE_EMAC0 + port*0x400 + EMAC_REG_EMAC_MODE,
6546 		      mode);
6547 
6548 	elink_set_led(params, vars, ELINK_LED_MODE_OPER, vars->line_speed);
6549 	return ELINK_STATUS_OK;
6550 }
6551 
elink_set_preemphasis(struct elink_phy * phy,struct elink_params * params)6552 static void elink_set_preemphasis(struct elink_phy *phy,
6553 				  struct elink_params *params)
6554 {
6555 
6556 	u16 bank, i = 0;
6557 	struct elink_dev *cb = params->cb;
6558 
6559 	for (bank = MDIO_REG_BANK_RX0, i = 0; bank <= MDIO_REG_BANK_RX3;
6560 	      bank += (MDIO_REG_BANK_RX1-MDIO_REG_BANK_RX0), i++) {
6561 			CL22_WR_OVER_CL45(cb, phy,
6562 					  bank,
6563 					  MDIO_RX0_RX_EQ_BOOST,
6564 					  phy->rx_preemphasis[i]);
6565 	}
6566 
6567 	for (bank = MDIO_REG_BANK_TX0, i = 0; bank <= MDIO_REG_BANK_TX3;
6568 		      bank += (MDIO_REG_BANK_TX1 - MDIO_REG_BANK_TX0), i++) {
6569 			CL22_WR_OVER_CL45(cb, phy,
6570 					  bank,
6571 					  MDIO_TX0_TX_DRIVER,
6572 					  phy->tx_preemphasis[i]);
6573 	}
6574 }
6575 
6576 static elink_status_t
elink_xgxs_config_init(struct elink_phy * phy,struct elink_params * params,struct elink_vars * vars)6577 elink_xgxs_config_init(struct elink_phy *phy, struct elink_params *params,
6578     struct elink_vars *vars)
6579 {
6580 #ifdef ELINK_DEBUG
6581 	struct elink_dev *cb = params->cb;
6582 #endif
6583 	u8 enable_cl73 = (ELINK_SINGLE_MEDIA_DIRECT(params) ||
6584 			  (params->loopback_mode == ELINK_LOOPBACK_XGXS));
6585 	if (!(vars->phy_flags & PHY_SGMII_FLAG)) {
6586 		if (ELINK_SINGLE_MEDIA_DIRECT(params) &&
6587 		    (params->feature_config_flags &
6588 		     ELINK_FEATURE_CONFIG_OVERRIDE_PREEMPHASIS_ENABLED))
6589 			elink_set_preemphasis(phy, params);
6590 
6591 		/* Forced speed requested? */
6592 		if (vars->line_speed != ELINK_SPEED_AUTO_NEG ||
6593 		    (ELINK_SINGLE_MEDIA_DIRECT(params) &&
6594 		     params->loopback_mode == ELINK_LOOPBACK_EXT)) {
6595 			ELINK_DEBUG_P0(cb, "not SGMII, no AN\n");
6596 
6597 			/* Disable autoneg */
6598 			elink_set_autoneg(phy, params, vars, 0);
6599 
6600 			/* Program speed and duplex */
6601 			elink_program_serdes(phy, params, vars);
6602 
6603 		} else { /* AN_mode */
6604 			ELINK_DEBUG_P0(cb, "not SGMII, AN\n");
6605 
6606 			/* AN enabled */
6607 			elink_set_brcm_cl37_advertisement(phy, params);
6608 
6609 			/* Program duplex & pause advertisement (for aneg) */
6610 			elink_set_ieee_aneg_advertisement(phy, params,
6611 							  vars->ieee_fc);
6612 
6613 			/* Enable autoneg */
6614 			elink_set_autoneg(phy, params, vars, enable_cl73);
6615 
6616 			/* Enable and restart AN */
6617 			elink_restart_autoneg(phy, params, enable_cl73);
6618 		}
6619 
6620 	} else { /* SGMII mode */
6621 		ELINK_DEBUG_P0(cb, "SGMII\n");
6622 
6623 		elink_initialize_sgmii_process(phy, params, vars);
6624 	}
6625 	return (ELINK_STATUS_OK);
6626 }
6627 
elink_prepare_xgxs(struct elink_phy * phy,struct elink_params * params,struct elink_vars * vars)6628 static elink_status_t elink_prepare_xgxs(struct elink_phy *phy,
6629 			  struct elink_params *params,
6630 			  struct elink_vars *vars)
6631 {
6632 	elink_status_t rc;
6633 	vars->phy_flags |= PHY_XGXS_FLAG;
6634 	if ((phy->req_line_speed &&
6635 	     ((phy->req_line_speed == ELINK_SPEED_100) ||
6636 	      (phy->req_line_speed == ELINK_SPEED_10))) ||
6637 	    (!phy->req_line_speed &&
6638 	     (phy->speed_cap_mask >=
6639 	      PORT_HW_CFG_SPEED_CAPABILITY_D0_10M_FULL) &&
6640 	     (phy->speed_cap_mask <
6641 	      PORT_HW_CFG_SPEED_CAPABILITY_D0_1G)) ||
6642 	    (phy->type == PORT_HW_CFG_SERDES_EXT_PHY_TYPE_DIRECT_SD))
6643 		vars->phy_flags |= PHY_SGMII_FLAG;
6644 	else
6645 		vars->phy_flags &= ~PHY_SGMII_FLAG;
6646 
6647 	elink_calc_ieee_aneg_adv(phy, params, &vars->ieee_fc);
6648 	elink_set_aer_mmd(params, phy);
6649 	if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT)
6650 		elink_set_master_ln(params, phy);
6651 
6652 	rc = elink_reset_unicore(params, phy, 0);
6653 	/* Reset the SerDes and wait for reset bit return low */
6654 	if (rc != ELINK_STATUS_OK)
6655 		return rc;
6656 
6657 	elink_set_aer_mmd(params, phy);
6658 	/* Setting the masterLn_def again after the reset */
6659 	if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT) {
6660 		elink_set_master_ln(params, phy);
6661 		elink_set_swap_lanes(params, phy);
6662 	}
6663 
6664 	return rc;
6665 }
6666 #endif // #ifndef EXCLUDE_NON_COMMON_INIT
6667 #endif /* EXCLUDE_XGXS */
6668 
6669 #ifndef EXCLUDE_NON_COMMON_INIT
6670 #ifndef ELINK_EMUL_ONLY
elink_wait_reset_complete(struct elink_dev * cb,struct elink_phy * phy,struct elink_params * params)6671 static u16 elink_wait_reset_complete(struct elink_dev *cb,
6672 				     struct elink_phy *phy,
6673 				     struct elink_params *params)
6674 {
6675 	u16 cnt, ctrl;
6676 	/* Wait for soft reset to get cleared up to 1 sec */
6677 	for (cnt = 0; cnt < 1000; cnt++) {
6678 #ifndef EXCLUDE_BCM54618SE
6679 		if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM54618SE)
6680 			elink_cl22_read(cb, phy,
6681 				MDIO_PMA_REG_CTRL, &ctrl);
6682 		else
6683 #endif
6684 			elink_cl45_read(cb, phy,
6685 				MDIO_PMA_DEVAD,
6686 				MDIO_PMA_REG_CTRL, &ctrl);
6687 		if (!(ctrl & (1<<15)))
6688 			break;
6689 		MSLEEP(cb, 1);
6690 	}
6691 
6692 	if (cnt == 1000)
6693 		elink_cb_event_log(cb, ELINK_LOG_ID_PHY_UNINITIALIZED, params->port); // "Warning: PHY was not initialized,"
6694 				     // " Port %d\n",
6695 
6696 	ELINK_DEBUG_P2(cb, "control reg 0x%x (after %d ms)\n", ctrl, cnt);
6697 	return cnt;
6698 }
6699 #endif /* ELINK_EMUL_ONLY */
6700 
elink_link_int_enable(struct elink_params * params)6701 static void elink_link_int_enable(struct elink_params *params)
6702 {
6703 	u8 port = params->port;
6704 	u32 mask;
6705 	struct elink_dev *cb = params->cb;
6706 
6707 	/* Setting the status to report on link up for either XGXS or SerDes */
6708 	if (CHIP_IS_E3(params->chip_id)) {
6709 		mask = ELINK_NIG_MASK_XGXS0_LINK_STATUS;
6710 		if (!(ELINK_SINGLE_MEDIA_DIRECT(params)))
6711 			mask |= ELINK_NIG_MASK_MI_INT;
6712 	} else if (params->switch_cfg == ELINK_SWITCH_CFG_10G) {
6713 		mask = (ELINK_NIG_MASK_XGXS0_LINK10G |
6714 			ELINK_NIG_MASK_XGXS0_LINK_STATUS);
6715 		ELINK_DEBUG_P0(cb, "enabled XGXS interrupt\n");
6716 		if (!(ELINK_SINGLE_MEDIA_DIRECT(params)) &&
6717 			params->phy[ELINK_INT_PHY].type !=
6718 				PORT_HW_CFG_XGXS_EXT_PHY_TYPE_FAILURE) {
6719 			mask |= ELINK_NIG_MASK_MI_INT;
6720 			ELINK_DEBUG_P0(cb, "enabled external phy int\n");
6721 		}
6722 
6723 	} else { /* SerDes */
6724 		mask = ELINK_NIG_MASK_SERDES0_LINK_STATUS;
6725 		ELINK_DEBUG_P0(cb, "enabled SerDes interrupt\n");
6726 		if (!(ELINK_SINGLE_MEDIA_DIRECT(params)) &&
6727 			params->phy[ELINK_INT_PHY].type !=
6728 				PORT_HW_CFG_SERDES_EXT_PHY_TYPE_NOT_CONN) {
6729 			mask |= ELINK_NIG_MASK_MI_INT;
6730 			ELINK_DEBUG_P0(cb, "enabled external phy int\n");
6731 		}
6732 	}
6733 	elink_bits_en(cb,
6734 		      NIG_REG_MASK_INTERRUPT_PORT0 + port*4,
6735 		      mask);
6736 
6737 	ELINK_DEBUG_P3(cb, "port %x, is_xgxs %x, int_status 0x%x\n", port,
6738 		 (params->switch_cfg == ELINK_SWITCH_CFG_10G),
6739 		 REG_RD(cb, NIG_REG_STATUS_INTERRUPT_PORT0 + port*4));
6740 	ELINK_DEBUG_P3(cb, " int_mask 0x%x, MI_INT %x, SERDES_LINK %x\n",
6741 		 REG_RD(cb, NIG_REG_MASK_INTERRUPT_PORT0 + port*4),
6742 		 REG_RD(cb, NIG_REG_EMAC0_STATUS_MISC_MI_INT + port*0x18),
6743 		 REG_RD(cb, NIG_REG_SERDES0_STATUS_LINK_STATUS+port*0x3c));
6744 	ELINK_DEBUG_P2(cb, " 10G %x, XGXS_LINK %x\n",
6745 	   REG_RD(cb, NIG_REG_XGXS0_STATUS_LINK10G + port*0x68),
6746 	   REG_RD(cb, NIG_REG_XGXS0_STATUS_LINK_STATUS + port*0x68));
6747 }
6748 
elink_rearm_latch_signal(struct elink_dev * cb,u8 port,u8 exp_mi_int)6749 static void elink_rearm_latch_signal(struct elink_dev *cb, u8 port,
6750 				     u8 exp_mi_int)
6751 {
6752 	u32 latch_status = 0;
6753 
6754 	/* Disable the MI INT ( external phy int ) by writing 1 to the
6755 	 * status register. Link down indication is high-active-signal,
6756 	 * so in this case we need to write the status to clear the XOR
6757 	 */
6758 	/* Read Latched signals */
6759 	latch_status = REG_RD(cb,
6760 				    NIG_REG_LATCH_STATUS_0 + port*8);
6761 	ELINK_DEBUG_P1(cb, "latch_status = 0x%x\n", latch_status);
6762 	/* Handle only those with latched-signal=up.*/
6763 	if (exp_mi_int)
6764 		elink_bits_en(cb,
6765 			      NIG_REG_STATUS_INTERRUPT_PORT0
6766 			      + port*4,
6767 			      ELINK_NIG_STATUS_EMAC0_MI_INT);
6768 	else
6769 		elink_bits_dis(cb,
6770 			       NIG_REG_STATUS_INTERRUPT_PORT0
6771 			       + port*4,
6772 			       ELINK_NIG_STATUS_EMAC0_MI_INT);
6773 
6774 	if (latch_status & 1) {
6775 
6776 		/* For all latched-signal=up : Re-Arm Latch signals */
6777 		REG_WR(cb, NIG_REG_LATCH_STATUS_0 + port*8,
6778 		       (latch_status & 0xfffe) | (latch_status & 1));
6779 	}
6780 	/* For all latched-signal=up,Write original_signal to status */
6781 }
6782 
elink_link_int_ack(struct elink_params * params,struct elink_vars * vars,u8 is_10g_plus)6783 static void elink_link_int_ack(struct elink_params *params,
6784 			       struct elink_vars *vars, u8 is_10g_plus)
6785 {
6786 	struct elink_dev *cb = params->cb;
6787 	u8 port = params->port;
6788 	u32 mask;
6789 	/* First reset all status we assume only one line will be
6790 	 * change at a time
6791 	 */
6792 	elink_bits_dis(cb, NIG_REG_STATUS_INTERRUPT_PORT0 + port*4,
6793 		       (ELINK_NIG_STATUS_XGXS0_LINK10G |
6794 			ELINK_NIG_STATUS_XGXS0_LINK_STATUS |
6795 			ELINK_NIG_STATUS_SERDES0_LINK_STATUS));
6796 	if (vars->phy_link_up) {
6797 		if (ELINK_USES_WARPCORE(params->chip_id))
6798 			mask = ELINK_NIG_STATUS_XGXS0_LINK_STATUS;
6799 		else {
6800 			if (is_10g_plus)
6801 				mask = ELINK_NIG_STATUS_XGXS0_LINK10G;
6802 			else if (params->switch_cfg == ELINK_SWITCH_CFG_10G) {
6803 				/* Disable the link interrupt by writing 1 to
6804 				 * the relevant lane in the status register
6805 				 */
6806 				u32 ser_lane =
6807 					((params->lane_config &
6808 				    PORT_HW_CFG_LANE_SWAP_CFG_MASTER_MASK) >>
6809 				    PORT_HW_CFG_LANE_SWAP_CFG_MASTER_SHIFT);
6810 				mask = ((1 << ser_lane) <<
6811 				       ELINK_NIG_STATUS_XGXS0_LINK_STATUS_SIZE);
6812 			} else
6813 				mask = ELINK_NIG_STATUS_SERDES0_LINK_STATUS;
6814 		}
6815 		ELINK_DEBUG_P1(cb, "Ack link up interrupt with mask 0x%x\n",
6816 			       mask);
6817 		elink_bits_en(cb,
6818 			      NIG_REG_STATUS_INTERRUPT_PORT0 + port*4,
6819 			      mask);
6820 	}
6821 }
6822 
6823 #if !defined(ELINK_EMUL_ONLY) && (!defined(EXCLUDE_BCM8727_BCM8073) || !defined(EXCLUDE_SFX7101) || !defined(EXCLUDE_BCM8705) || !defined(EXCLUDE_BCM87x6))
6824 static elink_status_t
elink_format_ver(u32 num,u8 * str,u16 * len)6825 elink_format_ver(u32 num, u8 *str, u16 *len)
6826 {
6827 #ifdef ELINK_ENHANCEMENTS
6828 	u8 *str_ptr = str;
6829 	u32 mask = 0xf0000000;
6830 	u8 shift = 8*4;
6831 	u8 digit;
6832 	u8 remove_leading_zeros = 1;
6833 	if (*len < 10) {
6834 		/* Need more than 10chars for this format */
6835 		*str_ptr = '\0';
6836 		(*len)--;
6837 		return ELINK_STATUS_ERROR;
6838 	}
6839 	while (shift > 0) {
6840 
6841 		shift -= 4;
6842 		digit = ((num & mask) >> shift);
6843 		if (digit == 0 && remove_leading_zeros) {
6844 			mask = mask >> 4;
6845 			continue;
6846 		} else if (digit < 0xa)
6847 			*str_ptr = digit + '0';
6848 		else
6849 			*str_ptr = digit - 0xa + 'a';
6850 		remove_leading_zeros = 0;
6851 		str_ptr++;
6852 		(*len)--;
6853 		mask = mask >> 4;
6854 		if (shift == 4*4) {
6855 			*str_ptr = '.';
6856 			str_ptr++;
6857 			(*len)--;
6858 			remove_leading_zeros = 1;
6859 		}
6860 	}
6861 #endif /* ELINK_ENHANCEMENTS */
6862 	return ELINK_STATUS_OK;
6863 }
6864 #endif /* ELINK_EMUL_ONLY */
6865 
6866 
6867 #ifndef EXCLUDE_BCM8705
6868 static elink_status_t
elink_null_format_ver(u32 spirom_ver,u8 * str,u16 * len)6869 elink_null_format_ver(u32 spirom_ver, u8 *str, u16 *len)
6870 {
6871 #ifdef ELINK_ENHANCEMENTS
6872 	str[0] = '\0';
6873 	(*len)--;
6874 #endif // ELINK_ENHANCEMENTS
6875 	return ELINK_STATUS_OK;
6876 }
6877 #endif // EXCLUDE_BCM8705
6878 
6879 #ifdef ELINK_ENHANCEMENTS
elink_get_ext_phy_fw_version(struct elink_params * params,u8 * version,u16 len)6880 elink_status_t elink_get_ext_phy_fw_version(struct elink_params *params, u8 *version,
6881 				 u16 len)
6882 {
6883 	struct elink_dev *cb;
6884 	u32 spirom_ver = 0;
6885 	elink_status_t status = ELINK_STATUS_OK;
6886 	u8 *ver_p = version;
6887 	u16 remain_len = len;
6888 	if (version == NULL || params == NULL)
6889 		return ELINK_STATUS_ERROR;
6890 	cb = params->cb;
6891 
6892 	/* Extract first external phy*/
6893 	version[0] = '\0';
6894 	spirom_ver = REG_RD(cb, params->phy[ELINK_EXT_PHY1].ver_addr);
6895 
6896 	if (params->phy[ELINK_EXT_PHY1].format_fw_ver) {
6897 		status |= params->phy[ELINK_EXT_PHY1].format_fw_ver(spirom_ver,
6898 							      ver_p,
6899 							      &remain_len);
6900 		ver_p += (len - remain_len);
6901 	}
6902 	if ((params->num_phys == ELINK_MAX_PHYS) &&
6903 	    (params->phy[ELINK_EXT_PHY2].ver_addr != 0)) {
6904 		spirom_ver = REG_RD(cb, params->phy[ELINK_EXT_PHY2].ver_addr);
6905 		if (params->phy[ELINK_EXT_PHY2].format_fw_ver) {
6906 			*ver_p = '/';
6907 			ver_p++;
6908 			remain_len--;
6909 			status |= params->phy[ELINK_EXT_PHY2].format_fw_ver(
6910 				spirom_ver,
6911 				ver_p,
6912 				&remain_len);
6913 			ver_p = version + (len - remain_len);
6914 		}
6915 	}
6916 	*ver_p = '\0';
6917 	return status;
6918 }
6919 #endif // ELINK_ENHANCEMENTS
6920 
6921 #ifndef EXCLUDE_XGXS
elink_set_xgxs_loopback(struct elink_phy * phy,struct elink_params * params)6922 static void elink_set_xgxs_loopback(struct elink_phy *phy,
6923 				    struct elink_params *params)
6924 {
6925 #ifdef ELINK_INCLUDE_LOOPBACK
6926 	u8 port = params->port;
6927 	struct elink_dev *cb = params->cb;
6928 
6929 	if (phy->req_line_speed != ELINK_SPEED_1000) {
6930 		u32 md_devad = 0;
6931 
6932 		ELINK_DEBUG_P0(cb, "XGXS 10G loopback enable\n");
6933 
6934 		if (!CHIP_IS_E3(params->chip_id)) {
6935 			/* Change the uni_phy_addr in the nig */
6936 			md_devad = REG_RD(cb, (NIG_REG_XGXS0_CTRL_MD_DEVAD +
6937 					       port*0x18));
6938 
6939 			REG_WR(cb, NIG_REG_XGXS0_CTRL_MD_DEVAD + port*0x18,
6940 			       0x5);
6941 		}
6942 
6943 		elink_cl45_write(cb, phy,
6944 				 5,
6945 				 (MDIO_REG_BANK_AER_BLOCK +
6946 				  (MDIO_AER_BLOCK_AER_REG & 0xf)),
6947 				 0x2800);
6948 
6949 		elink_cl45_write(cb, phy,
6950 				 5,
6951 				 (MDIO_REG_BANK_CL73_IEEEB0 +
6952 				  (MDIO_CL73_IEEEB0_CL73_AN_CONTROL & 0xf)),
6953 				 0x6041);
6954 		MSLEEP(cb, 200);
6955 		/* Set aer mmd back */
6956 		elink_set_aer_mmd(params, phy);
6957 
6958 		if (!CHIP_IS_E3(params->chip_id)) {
6959 			/* And md_devad */
6960 			REG_WR(cb, NIG_REG_XGXS0_CTRL_MD_DEVAD + port*0x18,
6961 			       md_devad);
6962 		}
6963 	} else {
6964 		u16 mii_ctrl;
6965 		ELINK_DEBUG_P0(cb, "XGXS 1G loopback enable\n");
6966 		elink_cl45_read(cb, phy, 5,
6967 				(MDIO_REG_BANK_COMBO_IEEE0 +
6968 				(MDIO_COMBO_IEEE0_MII_CONTROL & 0xf)),
6969 				&mii_ctrl);
6970 		elink_cl45_write(cb, phy, 5,
6971 				 (MDIO_REG_BANK_COMBO_IEEE0 +
6972 				 (MDIO_COMBO_IEEE0_MII_CONTROL & 0xf)),
6973 				 mii_ctrl |
6974 				 MDIO_COMBO_IEEO_MII_CONTROL_LOOPBACK);
6975 	}
6976 #endif // ELINK_INCLUDE_LOOPBACK
6977 }
6978 #endif /* EXCLUDE_XGXS */
6979 
elink_set_led(struct elink_params * params,struct elink_vars * vars,u8 mode,u32 speed)6980 elink_status_t elink_set_led(struct elink_params *params,
6981 		  struct elink_vars *vars, u8 mode, u32 speed)
6982 {
6983 	u8 port = params->port;
6984 	u16 hw_led_mode = params->hw_led_mode;
6985 	elink_status_t rc = ELINK_STATUS_OK;
6986 	u8 phy_idx;
6987 	u32 tmp;
6988 	u32 emac_base = port ? GRCBASE_EMAC1 : GRCBASE_EMAC0;
6989 	struct elink_dev *cb = params->cb;
6990 	ELINK_DEBUG_P2(cb, "elink_set_led: port %x, mode %d\n", port, mode);
6991 	ELINK_DEBUG_P2(cb, "speed 0x%x, hw_led_mode 0x%x\n",
6992 		 speed, hw_led_mode);
6993 	/* In case */
6994 	for (phy_idx = ELINK_EXT_PHY1; phy_idx < ELINK_MAX_PHYS; phy_idx++) {
6995 		if (params->phy[phy_idx].set_link_led) {
6996 			params->phy[phy_idx].set_link_led(
6997 				&params->phy[phy_idx], params, mode);
6998 		}
6999 	}
7000 #ifdef ELINK_INCLUDE_EMUL
7001 	if (params->feature_config_flags &
7002 	    ELINK_FEATURE_CONFIG_EMUL_DISABLE_EMAC)
7003 		return rc;
7004 #endif
7005 
7006 	switch (mode) {
7007 	case ELINK_LED_MODE_FRONT_PANEL_OFF:
7008 	case ELINK_LED_MODE_OFF:
7009 		REG_WR(cb, NIG_REG_LED_10G_P0 + port*4, 0);
7010 		REG_WR(cb, NIG_REG_LED_MODE_P0 + port*4,
7011 		       SHARED_HW_CFG_LED_MAC1);
7012 
7013 		tmp = EMAC_RD(cb, EMAC_REG_EMAC_LED);
7014 		if (params->phy[ELINK_EXT_PHY1].type ==
7015 			PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM54618SE)
7016 			tmp &= ~(EMAC_LED_1000MB_OVERRIDE |
7017 				EMAC_LED_100MB_OVERRIDE |
7018 				EMAC_LED_10MB_OVERRIDE);
7019 		else
7020 			tmp |= EMAC_LED_OVERRIDE;
7021 
7022 		EMAC_WR(cb, EMAC_REG_EMAC_LED, tmp);
7023 		break;
7024 
7025 	case ELINK_LED_MODE_OPER:
7026 		/* For all other phys, OPER mode is same as ON, so in case
7027 		 * link is down, do nothing
7028 		 */
7029 		if (!vars->link_up)
7030 			break;
7031 		/* FALLTHROUGH */
7032 	case ELINK_LED_MODE_ON:
7033 		if (((params->phy[ELINK_EXT_PHY1].type ==
7034 			  PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8727) ||
7035 			 (params->phy[ELINK_EXT_PHY1].type ==
7036 			  PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8722)) &&
7037 		    CHIP_IS_E2(params->chip_id) && params->num_phys == 2) {
7038 			/* This is a work-around for E2+8727 Configurations */
7039 			if (mode == ELINK_LED_MODE_ON ||
7040 				speed == ELINK_SPEED_10000){
7041 				REG_WR(cb, NIG_REG_LED_MODE_P0 + port*4, 0);
7042 				REG_WR(cb, NIG_REG_LED_10G_P0 + port*4, 1);
7043 
7044 				tmp = EMAC_RD(cb, EMAC_REG_EMAC_LED);
7045 				EMAC_WR(cb, EMAC_REG_EMAC_LED,
7046 					(tmp | EMAC_LED_OVERRIDE));
7047 				/* Return here without enabling traffic
7048 				 * LED blink and setting rate in ON mode.
7049 				 * In oper mode, enabling LED blink
7050 				 * and setting rate is needed.
7051 				 */
7052 				if (mode == ELINK_LED_MODE_ON)
7053 					return rc;
7054 			}
7055 		} else if (ELINK_SINGLE_MEDIA_DIRECT(params)) {
7056 			/* This is a work-around for HW issue found when link
7057 			 * is up in CL73
7058 			 */
7059 			if ((!CHIP_IS_E3(params->chip_id)) ||
7060 			    (CHIP_IS_E3(params->chip_id) &&
7061 			     mode == ELINK_LED_MODE_ON))
7062 				REG_WR(cb, NIG_REG_LED_10G_P0 + port*4, 1);
7063 
7064 			if (CHIP_IS_E1X(params->chip_id) ||
7065 			    CHIP_IS_E2(params->chip_id) ||
7066 			    (mode == ELINK_LED_MODE_ON))
7067 				REG_WR(cb, NIG_REG_LED_MODE_P0 + port*4, 0);
7068 			else
7069 				REG_WR(cb, NIG_REG_LED_MODE_P0 + port*4,
7070 				       hw_led_mode);
7071 		} else if ((params->phy[ELINK_EXT_PHY1].type ==
7072 			    PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM54618SE) &&
7073 			   (mode == ELINK_LED_MODE_ON)) {
7074 			REG_WR(cb, NIG_REG_LED_MODE_P0 + port*4, 0);
7075 			tmp = EMAC_RD(cb, EMAC_REG_EMAC_LED);
7076 			EMAC_WR(cb, EMAC_REG_EMAC_LED, tmp |
7077 				EMAC_LED_OVERRIDE | EMAC_LED_1000MB_OVERRIDE);
7078 			/* Break here; otherwise, it'll disable the
7079 			 * intended override.
7080 			 */
7081 			break;
7082 		} else {
7083 			u32 nig_led_mode = ((params->hw_led_mode <<
7084 					     SHARED_HW_CFG_LED_MODE_SHIFT) ==
7085 					    SHARED_HW_CFG_LED_EXTPHY2) ?
7086 				(SHARED_HW_CFG_LED_PHY1 >>
7087 				 SHARED_HW_CFG_LED_MODE_SHIFT) : hw_led_mode;
7088 			REG_WR(cb, NIG_REG_LED_MODE_P0 + port*4,
7089 			       nig_led_mode);
7090 		}
7091 
7092 		REG_WR(cb, NIG_REG_LED_CONTROL_OVERRIDE_TRAFFIC_P0 + port*4, 0);
7093 		/* Set blinking rate to ~15.9Hz */
7094 		if (CHIP_IS_E3(params->chip_id))
7095 			REG_WR(cb, NIG_REG_LED_CONTROL_BLINK_RATE_P0 + port*4,
7096 			       LED_BLINK_RATE_VAL_E3);
7097 		else
7098 			REG_WR(cb, NIG_REG_LED_CONTROL_BLINK_RATE_P0 + port*4,
7099 			       LED_BLINK_RATE_VAL_E1X_E2);
7100 		REG_WR(cb, NIG_REG_LED_CONTROL_BLINK_RATE_ENA_P0 +
7101 		       port*4, 1);
7102 		tmp = EMAC_RD(cb, EMAC_REG_EMAC_LED);
7103 		EMAC_WR(cb, EMAC_REG_EMAC_LED,
7104 			(tmp & (~EMAC_LED_OVERRIDE)));
7105 
7106 #ifndef ELINK_AUX_POWER
7107 		if (CHIP_IS_E1(params->chip_id) &&
7108 		    ((speed == ELINK_SPEED_2500) ||
7109 		     (speed == ELINK_SPEED_1000) ||
7110 		     (speed == ELINK_SPEED_100) ||
7111 		     (speed == ELINK_SPEED_10))) {
7112 			/* For speeds less than 10G LED scheme is different */
7113 			REG_WR(cb, NIG_REG_LED_CONTROL_OVERRIDE_TRAFFIC_P0
7114 			       + port*4, 1);
7115 			REG_WR(cb, NIG_REG_LED_CONTROL_TRAFFIC_P0 +
7116 			       port*4, 0);
7117 			REG_WR(cb, NIG_REG_LED_CONTROL_BLINK_TRAFFIC_P0 +
7118 			       port*4, 1);
7119 		}
7120 #endif // ELINK_AUX_POWER
7121 		break;
7122 
7123 	default:
7124 		rc = ELINK_STATUS_ERROR;
7125 		ELINK_DEBUG_P1(cb, "elink_set_led: Invalid led mode %d\n",
7126 			 mode);
7127 		break;
7128 	}
7129 	return rc;
7130 
7131 }
7132 
7133 #endif // EXCLUDE_NON_COMMON_INIT
7134 #ifdef ELINK_ENHANCEMENTS
7135 /* This function comes to reflect the actual link state read DIRECTLY from the
7136  * HW
7137  */
elink_test_link(struct elink_params * params,struct elink_vars * vars,u8 is_serdes)7138 elink_status_t elink_test_link(struct elink_params *params, struct elink_vars *vars,
7139 		    u8 is_serdes)
7140 {
7141 	struct elink_dev *cb = params->cb;
7142 	u16 gp_status = 0, phy_index = 0;
7143 	u8 ext_phy_link_up = 0, serdes_phy_type;
7144 	struct elink_vars temp_vars;
7145 	struct elink_phy *int_phy = &params->phy[ELINK_INT_PHY];
7146 #ifdef ELINK_INCLUDE_FPGA
7147 	if (CHIP_REV_IS_FPGA(params->chip_id))
7148 		return ELINK_STATUS_OK;
7149 #endif /* ELINK_INCLUDE_FPGA */
7150 #ifdef ELINK_INCLUDE_EMUL
7151 	if (CHIP_REV_IS_EMUL(params->chip_id))
7152 		return ELINK_STATUS_OK;
7153 #endif /* ELINK_INCLUDE_EMUL */
7154 
7155 	if (CHIP_IS_E3(params->chip_id)) {
7156 		u16 link_up;
7157 		if (params->req_line_speed[ELINK_LINK_CONFIG_IDX(ELINK_INT_PHY)]
7158 		    > ELINK_SPEED_10000) {
7159 			/* Check 20G link */
7160 			elink_cl45_read(cb, int_phy, MDIO_WC_DEVAD,
7161 					1, &link_up);
7162 			elink_cl45_read(cb, int_phy, MDIO_WC_DEVAD,
7163 					1, &link_up);
7164 			link_up &= (1<<2);
7165 		} else {
7166 			/* Check 10G link and below*/
7167 			u8 lane = elink_get_warpcore_lane(int_phy, params);
7168 			elink_cl45_read(cb, int_phy, MDIO_WC_DEVAD,
7169 					MDIO_WC_REG_GP2_STATUS_GP_2_1,
7170 					&gp_status);
7171 			gp_status = ((gp_status >> 8) & 0xf) |
7172 				((gp_status >> 12) & 0xf);
7173 			link_up = gp_status & (1 << lane);
7174 		}
7175 		if (!link_up)
7176 			return ELINK_STATUS_NO_LINK;
7177 	} else {
7178 		CL22_RD_OVER_CL45(cb, int_phy,
7179 			  MDIO_REG_BANK_GP_STATUS,
7180 			  MDIO_GP_STATUS_TOP_AN_STATUS1,
7181 			  &gp_status);
7182 	/* Link is up only if both local phy and external phy are up */
7183 	if (!(gp_status & MDIO_GP_STATUS_TOP_AN_STATUS1_LINK_STATUS))
7184 		return ELINK_STATUS_NO_LINK;
7185 	}
7186 	/* In XGXS loopback mode, do not check external PHY */
7187 	if (params->loopback_mode == ELINK_LOOPBACK_XGXS)
7188 		return ELINK_STATUS_OK;
7189 
7190 	switch (params->num_phys) {
7191 	case 1:
7192 		/* No external PHY */
7193 		return ELINK_STATUS_OK;
7194 	case 2:
7195 		ext_phy_link_up = params->phy[ELINK_EXT_PHY1].read_status(
7196 			&params->phy[ELINK_EXT_PHY1],
7197 			params, &temp_vars);
7198 		break;
7199 	case 3: /* Dual Media */
7200 		for (phy_index = ELINK_EXT_PHY1; phy_index < params->num_phys;
7201 		      phy_index++) {
7202 			serdes_phy_type = ((params->phy[phy_index].media_type ==
7203 					    ELINK_ETH_PHY_SFPP_10G_FIBER) ||
7204 					   (params->phy[phy_index].media_type ==
7205 					    ELINK_ETH_PHY_SFP_1G_FIBER) ||
7206 					   (params->phy[phy_index].media_type ==
7207 					    ELINK_ETH_PHY_XFP_FIBER) ||
7208 					   (params->phy[phy_index].media_type ==
7209 					    ELINK_ETH_PHY_DA_TWINAX));
7210 
7211 			if (is_serdes != serdes_phy_type)
7212 				continue;
7213 			if (params->phy[phy_index].read_status) {
7214 				ext_phy_link_up |=
7215 					params->phy[phy_index].read_status(
7216 						&params->phy[phy_index],
7217 						params, &temp_vars);
7218 			}
7219 		}
7220 		break;
7221 	}
7222 	if (ext_phy_link_up)
7223 		return ELINK_STATUS_OK;
7224 	return ELINK_STATUS_NO_LINK;
7225 }
7226 #endif // ELINK_ENHANCEMENT
7227 
7228 #ifndef EXCLUDE_NON_COMMON_INIT
elink_link_initialize(struct elink_params * params,struct elink_vars * vars)7229 static elink_status_t elink_link_initialize(struct elink_params *params,
7230 				 struct elink_vars *vars)
7231 {
7232 	u8 phy_index, non_ext_phy;
7233 	struct elink_dev *cb = params->cb;
7234 	/* In case of external phy existence, the line speed would be the
7235 	 * line speed linked up by the external phy. In case it is direct
7236 	 * only, then the line_speed during initialization will be
7237 	 * equal to the req_line_speed
7238 	 */
7239 	vars->line_speed = params->phy[ELINK_INT_PHY].req_line_speed;
7240 
7241 	/* Initialize the internal phy in case this is a direct board
7242 	 * (no external phys), or this board has external phy which requires
7243 	 * to first.
7244 	 */
7245 #ifndef EXCLUDE_XGXS
7246 	if (!ELINK_USES_WARPCORE(params->chip_id))
7247 		elink_prepare_xgxs(&params->phy[ELINK_INT_PHY], params, vars);
7248 #endif // EXCLUDE_XGXS
7249 	/* init ext phy and enable link state int */
7250 	non_ext_phy = (ELINK_SINGLE_MEDIA_DIRECT(params) ||
7251 		       (params->loopback_mode == ELINK_LOOPBACK_XGXS));
7252 
7253 	if (non_ext_phy ||
7254 	    (params->phy[ELINK_EXT_PHY1].flags & ELINK_FLAGS_INIT_XGXS_FIRST) ||
7255 	    (params->loopback_mode == ELINK_LOOPBACK_EXT_PHY)) {
7256 		struct elink_phy *phy = &params->phy[ELINK_INT_PHY];
7257 #ifndef EXCLUDE_XGXS
7258 		if (vars->line_speed == ELINK_SPEED_AUTO_NEG &&
7259 		    (CHIP_IS_E1X(params->chip_id) ||
7260 		     CHIP_IS_E2(params->chip_id)))
7261 			elink_set_parallel_detection(phy, params);
7262 #endif // EXCLUDE_XGXS
7263 		if (params->phy[ELINK_INT_PHY].config_init)
7264 			params->phy[ELINK_INT_PHY].config_init(phy, params, vars);
7265 	}
7266 
7267 	/* Re-read this value in case it was changed inside config_init due to
7268 	 * limitations of optic module
7269 	 */
7270 	vars->line_speed = params->phy[ELINK_INT_PHY].req_line_speed;
7271 
7272 	/* Init external phy*/
7273 	if (non_ext_phy) {
7274 		if (params->phy[ELINK_INT_PHY].supported &
7275 		    ELINK_SUPPORTED_FIBRE)
7276 			vars->link_status |= LINK_STATUS_SERDES_LINK;
7277 	} else {
7278 		for (phy_index = ELINK_EXT_PHY1; phy_index < params->num_phys;
7279 		      phy_index++) {
7280 			/* No need to initialize second phy in case of first
7281 			 * phy only selection. In case of second phy, we do
7282 			 * need to initialize the first phy, since they are
7283 			 * connected.
7284 			 */
7285 			if (params->phy[phy_index].supported &
7286 			    ELINK_SUPPORTED_FIBRE)
7287 				vars->link_status |= LINK_STATUS_SERDES_LINK;
7288 
7289 			if (phy_index == ELINK_EXT_PHY2 &&
7290 			    (elink_phy_selection(params) ==
7291 			     PORT_HW_CFG_PHY_SELECTION_FIRST_PHY)) {
7292 				ELINK_DEBUG_P0(cb,
7293 				   "Not initializing second phy\n");
7294 				continue;
7295 			}
7296 			params->phy[phy_index].config_init(
7297 				&params->phy[phy_index],
7298 				params, vars);
7299 		}
7300 	}
7301 	/* Reset the interrupt indication after phy was initialized */
7302 	elink_bits_dis(cb, NIG_REG_STATUS_INTERRUPT_PORT0 +
7303 		       params->port*4,
7304 		       (ELINK_NIG_STATUS_XGXS0_LINK10G |
7305 			ELINK_NIG_STATUS_XGXS0_LINK_STATUS |
7306 			ELINK_NIG_STATUS_SERDES0_LINK_STATUS |
7307 			ELINK_NIG_MASK_MI_INT));
7308 	return ELINK_STATUS_OK;
7309 }
7310 
7311 #ifndef EXCLUDE_XGXS
elink_int_link_reset(struct elink_phy * phy,struct elink_params * params)7312 static void elink_int_link_reset(struct elink_phy *phy,
7313 				 struct elink_params *params)
7314 {
7315 #ifndef EXCLUDE_LINK_RESET
7316 	/* Reset the SerDes/XGXS */
7317 	REG_WR(params->cb, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_3_CLEAR,
7318 	       (0x1ff << (params->port*16)));
7319 #endif // EXCLUDE_LINK_RESET
7320 }
7321 #endif // EXCLUDE_XGXS
7322 
7323 #if (!defined ELINK_EMUL_ONLY) && ((!defined EXCLUDE_BCM87x6) || (!defined EXCLUDE_SFX7101) || (!defined EXCLUDE_BCM8705))
elink_common_ext_link_reset(struct elink_phy * phy,struct elink_params * params)7324 static void elink_common_ext_link_reset(struct elink_phy *phy,
7325 					struct elink_params *params)
7326 {
7327 #ifndef EXCLUDE_LINK_RESET
7328 	struct elink_dev *cb = params->cb;
7329 	u8 gpio_port;
7330 	/* HW reset */
7331 	if (CHIP_IS_E2(params->chip_id))
7332 		gpio_port = PATH_ID(cb);
7333 	else
7334 		gpio_port = params->port;
7335 	ELINK_SET_GPIO(cb, MISC_REGISTERS_GPIO_1,
7336 		       MISC_REGISTERS_GPIO_OUTPUT_LOW,
7337 		       gpio_port);
7338 	ELINK_SET_GPIO(cb, MISC_REGISTERS_GPIO_2,
7339 		       MISC_REGISTERS_GPIO_OUTPUT_LOW,
7340 		       gpio_port);
7341 	ELINK_DEBUG_P0(cb, "reset external PHY\n");
7342 #endif /* EXCLUDE_LINK_RESET */
7343 }
7344 #endif /* ELINK_EMUL_ONLY */
7345 
elink_update_link_down(struct elink_params * params,struct elink_vars * vars)7346 static elink_status_t elink_update_link_down(struct elink_params *params,
7347 				  struct elink_vars *vars)
7348 {
7349 	struct elink_dev *cb = params->cb;
7350 	u8 port = params->port;
7351 
7352 	ELINK_DEBUG_P1(cb, "Port %x: Link is down\n", port);
7353 	elink_set_led(params, vars, ELINK_LED_MODE_OFF, 0);
7354 	vars->phy_flags &= ~PHY_PHYSICAL_LINK_FLAG;
7355 	/* Indicate no mac active */
7356 	vars->mac_type = ELINK_MAC_TYPE_NONE;
7357 
7358 	/* Update shared memory */
7359 	vars->link_status &= ~ELINK_LINK_UPDATE_MASK;
7360 	vars->line_speed = 0;
7361 	elink_update_mng(params, vars->link_status);
7362 
7363 	/* Activate nig drain */
7364 	REG_WR(cb, NIG_REG_EGRESS_DRAIN0_MODE + port*4, 1);
7365 
7366 	/* Disable emac */
7367 	if (!CHIP_IS_E3(params->chip_id))
7368 		REG_WR(cb, NIG_REG_NIG_EMAC0_EN + port*4, 0);
7369 
7370 	MSLEEP(cb, 10);
7371 #if !defined(EXCLUDE_BMAC2) && !defined(EXCLUDE_BMAC1)
7372 	/* Reset BigMac/Xmac */
7373 	if (CHIP_IS_E1X(params->chip_id) ||
7374 	    CHIP_IS_E2(params->chip_id))
7375 		elink_set_bmac_rx(cb, params->chip_id, params->port, 0);
7376 #endif // #if !defined(EXCLUDE_BMAC2) && !defined(EXCLUDE_BMAC1)
7377 
7378 #ifndef EXCLUDE_WARPCORE
7379 	if (CHIP_IS_E3(params->chip_id)) {
7380 		/* Prevent LPI Generation by chip */
7381 		REG_WR(cb, MISC_REG_CPMU_LP_FW_ENABLE_P0 + (params->port << 2),
7382 		       0);
7383 		REG_WR(cb, MISC_REG_CPMU_LP_MASK_ENT_P0 + (params->port << 2),
7384 		       0);
7385 		vars->eee_status &= ~(SHMEM_EEE_LP_ADV_STATUS_MASK |
7386 				      SHMEM_EEE_ACTIVE_BIT);
7387 
7388 		elink_update_mng_eee(params, vars->eee_status);
7389 		elink_set_xmac_rxtx(params, 0);
7390 		elink_set_umac_rxtx(params, 0);
7391 	}
7392 #endif // EXCLUDE_WARPCORE
7393 
7394 	return ELINK_STATUS_OK;
7395 }
7396 
elink_update_link_up(struct elink_params * params,struct elink_vars * vars,u8 link_10g)7397 static elink_status_t elink_update_link_up(struct elink_params *params,
7398 				struct elink_vars *vars,
7399 				u8 link_10g)
7400 {
7401 	struct elink_dev *cb = params->cb;
7402 	u8 phy_idx, port = params->port;
7403 	elink_status_t rc = ELINK_STATUS_OK;
7404 
7405 	vars->link_status |= (LINK_STATUS_LINK_UP |
7406 			      LINK_STATUS_PHYSICAL_LINK_FLAG);
7407 	vars->phy_flags |= PHY_PHYSICAL_LINK_FLAG;
7408 
7409 	if (vars->flow_ctrl & ELINK_FLOW_CTRL_TX)
7410 		vars->link_status |=
7411 			LINK_STATUS_TX_FLOW_CONTROL_ENABLED;
7412 
7413 	if (vars->flow_ctrl & ELINK_FLOW_CTRL_RX)
7414 		vars->link_status |=
7415 			LINK_STATUS_RX_FLOW_CONTROL_ENABLED;
7416 #ifndef EXCLUDE_WARPCORE
7417 	if (ELINK_USES_WARPCORE(params->chip_id)) {
7418 		if (link_10g) {
7419 			if (elink_xmac_enable(params, vars, 0) ==
7420 			    ELINK_STATUS_NO_LINK) {
7421 				ELINK_DEBUG_P0(cb, "Found errors on XMAC\n");
7422 				vars->link_up = 0;
7423 				vars->phy_flags |= PHY_HALF_OPEN_CONN_FLAG;
7424 				vars->link_status &= ~LINK_STATUS_LINK_UP;
7425 			}
7426 		} else
7427 			elink_umac_enable(params, vars, 0);
7428 		elink_set_led(params, vars,
7429 			      ELINK_LED_MODE_OPER, vars->line_speed);
7430 
7431 		if ((vars->eee_status & SHMEM_EEE_ACTIVE_BIT) &&
7432 		    (vars->eee_status & SHMEM_EEE_LPI_REQUESTED_BIT)) {
7433 			ELINK_DEBUG_P0(cb, "Enabling LPI assertion\n");
7434 			REG_WR(cb, MISC_REG_CPMU_LP_FW_ENABLE_P0 +
7435 			       (params->port << 2), 1);
7436 			REG_WR(cb, MISC_REG_CPMU_LP_DR_ENABLE, 1);
7437 			REG_WR(cb, MISC_REG_CPMU_LP_MASK_ENT_P0 +
7438 			       (params->port << 2), 0xfc20);
7439 		}
7440 	}
7441 #endif // EXCLUDE_WARPCORE
7442 #ifndef EXCLUDE_XGXS
7443 	if ((CHIP_IS_E1X(params->chip_id) ||
7444 	     CHIP_IS_E2(params->chip_id))) {
7445 		if (link_10g) {
7446 			if (elink_bmac_enable(params, vars, 0, 1) ==
7447 			    ELINK_STATUS_NO_LINK) {
7448 				ELINK_DEBUG_P0(cb, "Found errors on BMAC\n");
7449 				vars->link_up = 0;
7450 				vars->phy_flags |= PHY_HALF_OPEN_CONN_FLAG;
7451 				vars->link_status &= ~LINK_STATUS_LINK_UP;
7452 			}
7453 
7454 			elink_set_led(params, vars,
7455 				      ELINK_LED_MODE_OPER, ELINK_SPEED_10000);
7456 		} else {
7457 			rc = elink_emac_program(params, vars);
7458 			elink_emac_enable(params, vars, 0);
7459 
7460 			/* AN complete? */
7461 			if ((vars->link_status &
7462 			     LINK_STATUS_AUTO_NEGOTIATE_COMPLETE)
7463 			    && (!(vars->phy_flags & PHY_SGMII_FLAG)) &&
7464 			    ELINK_SINGLE_MEDIA_DIRECT(params))
7465 				elink_set_gmii_tx_driver(params);
7466 		}
7467 	}
7468 #endif // EXCLUDE_XGXS
7469 
7470 #ifndef ELINK_AUX_POWER
7471 	/* PBF - link up */
7472 	if (CHIP_IS_E1X(params->chip_id))
7473 		rc |= elink_pbf_update(params, vars->flow_ctrl,
7474 				       vars->line_speed);
7475 #endif /* ELINK_AUX_POWER */
7476 
7477 	/* Disable drain */
7478 	REG_WR(cb, NIG_REG_EGRESS_DRAIN0_MODE + port*4, 0);
7479 
7480 	/* Update shared memory */
7481 	elink_update_mng(params, vars->link_status);
7482 #ifndef EXCLUDE_WARPCORE
7483 	elink_update_mng_eee(params, vars->eee_status);
7484 #endif /* #ifndef EXCLUDE_WARPCORE */
7485 	/* Check remote fault */
7486 	for (phy_idx = ELINK_INT_PHY; phy_idx < ELINK_MAX_PHYS; phy_idx++) {
7487 		if (params->phy[phy_idx].flags & ELINK_FLAGS_TX_ERROR_CHECK) {
7488 			elink_check_half_open_conn(params, vars, 0);
7489 			break;
7490 		}
7491 	}
7492 	MSLEEP(cb, 20);
7493 	return rc;
7494 }
7495 
elink_chng_link_count(struct elink_params * params,u8 clear)7496 static void elink_chng_link_count(struct elink_params *params, u8 clear)
7497 {
7498 	struct elink_dev *cb = params->cb;
7499 	u32 addr, val;
7500 
7501 	/* Verify the link_change_count is supported by the MFW */
7502 	if (!(SHMEM2_HAS(cb, params->shmem2_base, link_change_count)))
7503 		return;
7504 
7505 	addr = params->shmem2_base +
7506 		OFFSETOF(struct shmem2_region, link_change_count[params->port]);
7507 	if (clear)
7508 		val = 0;
7509 	else
7510 		val = REG_RD(cb, addr) + 1;
7511 	REG_WR(cb, addr, val);
7512 }
7513 
7514 /* The elink_link_update function should be called upon link
7515  * interrupt.
7516  * Link is considered up as follows:
7517  * - DIRECT_SINGLE_MEDIA - Only XGXS link (internal link) needs
7518  *   to be up
7519  * - SINGLE_MEDIA - The link between the 577xx and the external
7520  *   phy (XGXS) need to up as well as the external link of the
7521  *   phy (PHY_EXT1)
7522  * - DUAL_MEDIA - The link between the 577xx and the first
7523  *   external phy needs to be up, and at least one of the 2
7524  *   external phy link must be up.
7525  */
elink_link_update(struct elink_params * params,struct elink_vars * vars)7526 elink_status_t elink_link_update(struct elink_params *params, struct elink_vars *vars)
7527 {
7528 	struct elink_dev *cb = params->cb;
7529 	struct elink_vars phy_vars[ELINK_MAX_PHYS];
7530 	u8 port = params->port;
7531 	u8 link_10g_plus, phy_index;
7532 	u32 prev_link_status = vars->link_status;
7533 	u8 ext_phy_link_up = 0, cur_link_up;
7534 	elink_status_t rc = ELINK_STATUS_OK;
7535 	u16 ext_phy_line_speed = 0, prev_line_speed = vars->line_speed;
7536 	u8 active_external_phy = ELINK_INT_PHY;
7537 	vars->phy_flags &= ~PHY_HALF_OPEN_CONN_FLAG;
7538 	vars->link_status &= ~ELINK_LINK_UPDATE_MASK;
7539 	for (phy_index = ELINK_INT_PHY; phy_index < params->num_phys;
7540 	      phy_index++) {
7541 		phy_vars[phy_index].flow_ctrl = 0;
7542 		phy_vars[phy_index].link_status = 0;
7543 		phy_vars[phy_index].line_speed = 0;
7544 		phy_vars[phy_index].duplex = DUPLEX_FULL;
7545 		phy_vars[phy_index].phy_link_up = 0;
7546 		phy_vars[phy_index].link_up = 0;
7547 		phy_vars[phy_index].fault_detected = 0;
7548 		/* different consideration, since vars holds inner state */
7549 		phy_vars[phy_index].eee_status = vars->eee_status;
7550 	}
7551 
7552 	if (ELINK_USES_WARPCORE(params->chip_id))
7553 		elink_set_aer_mmd(params, &params->phy[ELINK_INT_PHY]);
7554 
7555 	ELINK_DEBUG_P3(cb, "port %x, XGXS?%x, int_status 0x%x\n",
7556 		 port, (vars->phy_flags & PHY_XGXS_FLAG),
7557 		 REG_RD(cb, NIG_REG_STATUS_INTERRUPT_PORT0 + port*4));
7558 
7559 	ELINK_DEBUG_P3(cb, "int_mask 0x%x MI_INT %x, SERDES_LINK %x\n",
7560 		 REG_RD(cb, NIG_REG_MASK_INTERRUPT_PORT0 + port*4),
7561 		 REG_RD(cb, NIG_REG_EMAC0_STATUS_MISC_MI_INT + port*0x18) > 0,
7562 		 REG_RD(cb, NIG_REG_SERDES0_STATUS_LINK_STATUS + port*0x3c));
7563 
7564 	ELINK_DEBUG_P2(cb, " 10G %x, XGXS_LINK %x\n",
7565 	  REG_RD(cb, NIG_REG_XGXS0_STATUS_LINK10G + port*0x68),
7566 	  REG_RD(cb, NIG_REG_XGXS0_STATUS_LINK_STATUS + port*0x68));
7567 
7568 	/* Disable emac */
7569 	if (!CHIP_IS_E3(params->chip_id))
7570 		REG_WR(cb, NIG_REG_NIG_EMAC0_EN + port*4, 0);
7571 
7572 	/* Step 1:
7573 	 * Check external link change only for external phys, and apply
7574 	 * priority selection between them in case the link on both phys
7575 	 * is up. Note that instead of the common vars, a temporary
7576 	 * vars argument is used since each phy may have different link/
7577 	 * speed/duplex result
7578 	 */
7579 	for (phy_index = ELINK_EXT_PHY1; phy_index < params->num_phys;
7580 	      phy_index++) {
7581 		struct elink_phy *phy = &params->phy[phy_index];
7582 		if (!phy->read_status)
7583 			continue;
7584 		/* Read link status and params of this ext phy */
7585 		cur_link_up = phy->read_status(phy, params,
7586 					       &phy_vars[phy_index]);
7587 		if (cur_link_up) {
7588 			ELINK_DEBUG_P1(cb, "phy in index %d link is up\n",
7589 				   phy_index);
7590 		} else {
7591 			ELINK_DEBUG_P1(cb, "phy in index %d link is down\n",
7592 				   phy_index);
7593 			continue;
7594 		}
7595 
7596 		if (!ext_phy_link_up) {
7597 			ext_phy_link_up = 1;
7598 			active_external_phy = phy_index;
7599 		} else {
7600 			switch (elink_phy_selection(params)) {
7601 			case PORT_HW_CFG_PHY_SELECTION_HARDWARE_DEFAULT:
7602 			case PORT_HW_CFG_PHY_SELECTION_FIRST_PHY_PRIORITY:
7603 			/* In this option, the first PHY makes sure to pass the
7604 			 * traffic through itself only.
7605 			 * Its not clear how to reset the link on the second phy
7606 			 */
7607 				active_external_phy = ELINK_EXT_PHY1;
7608 				break;
7609 			case PORT_HW_CFG_PHY_SELECTION_SECOND_PHY_PRIORITY:
7610 			/* In this option, the first PHY makes sure to pass the
7611 			 * traffic through the second PHY.
7612 			 */
7613 				active_external_phy = ELINK_EXT_PHY2;
7614 				break;
7615 			default:
7616 			/* Link indication on both PHYs with the following cases
7617 			 * is invalid:
7618 			 * - FIRST_PHY means that second phy wasn't initialized,
7619 			 * hence its link is expected to be down
7620 			 * - SECOND_PHY means that first phy should not be able
7621 			 * to link up by itself (using configuration)
7622 			 * - DEFAULT should be overriden during initialiazation
7623 			 */
7624 				ELINK_DEBUG_P1(cb, "Invalid link indication"
7625 					   "mpc=0x%x. DISABLING LINK !!!\n",
7626 					   params->multi_phy_config);
7627 				ext_phy_link_up = 0;
7628 				break;
7629 			}
7630 		}
7631 	}
7632 	prev_line_speed = vars->line_speed;
7633 	/* Step 2:
7634 	 * Read the status of the internal phy. In case of
7635 	 * DIRECT_SINGLE_MEDIA board, this link is the external link,
7636 	 * otherwise this is the link between the 577xx and the first
7637 	 * external phy
7638 	 */
7639 	if (params->phy[ELINK_INT_PHY].read_status)
7640 		params->phy[ELINK_INT_PHY].read_status(
7641 			&params->phy[ELINK_INT_PHY],
7642 			params, vars);
7643 	/* The INT_PHY flow control reside in the vars. This include the
7644 	 * case where the speed or flow control are not set to AUTO.
7645 	 * Otherwise, the active external phy flow control result is set
7646 	 * to the vars. The ext_phy_line_speed is needed to check if the
7647 	 * speed is different between the internal phy and external phy.
7648 	 * This case may be result of intermediate link speed change.
7649 	 */
7650 	if (active_external_phy > ELINK_INT_PHY) {
7651 		vars->flow_ctrl = phy_vars[active_external_phy].flow_ctrl;
7652 		/* Link speed is taken from the XGXS. AN and FC result from
7653 		 * the external phy.
7654 		 */
7655 		vars->link_status |= phy_vars[active_external_phy].link_status;
7656 
7657 		/* if active_external_phy is first PHY and link is up - disable
7658 		 * disable TX on second external PHY
7659 		 */
7660 		if (active_external_phy == ELINK_EXT_PHY1) {
7661 			if (params->phy[ELINK_EXT_PHY2].phy_specific_func) {
7662 				ELINK_DEBUG_P0(cb,
7663 				   "Disabling TX on EXT_PHY2\n");
7664 				params->phy[ELINK_EXT_PHY2].phy_specific_func(
7665 					&params->phy[ELINK_EXT_PHY2],
7666 					params, ELINK_DISABLE_TX);
7667 			}
7668 		}
7669 
7670 		ext_phy_line_speed = phy_vars[active_external_phy].line_speed;
7671 		vars->duplex = phy_vars[active_external_phy].duplex;
7672 		if (params->phy[active_external_phy].supported &
7673 		    ELINK_SUPPORTED_FIBRE)
7674 			vars->link_status |= LINK_STATUS_SERDES_LINK;
7675 		else
7676 			vars->link_status &= ~LINK_STATUS_SERDES_LINK;
7677 
7678 		vars->eee_status = phy_vars[active_external_phy].eee_status;
7679 
7680 		ELINK_DEBUG_P1(cb, "Active external phy selected: %x\n",
7681 			   active_external_phy);
7682 	}
7683 
7684 	for (phy_index = ELINK_EXT_PHY1; phy_index < params->num_phys;
7685 	      phy_index++) {
7686 		if (params->phy[phy_index].flags &
7687 		    ELINK_FLAGS_REARM_LATCH_SIGNAL) {
7688 			elink_rearm_latch_signal(cb, port,
7689 						 phy_index ==
7690 						 active_external_phy);
7691 			break;
7692 		}
7693 	}
7694 	ELINK_DEBUG_P3(cb, "vars->flow_ctrl = 0x%x, vars->link_status = 0x%x,"
7695 		   " ext_phy_line_speed = %d\n", vars->flow_ctrl,
7696 		   vars->link_status, ext_phy_line_speed);
7697 	/* Upon link speed change set the NIG into drain mode. Comes to
7698 	 * deals with possible FIFO glitch due to clk change when speed
7699 	 * is decreased without link down indicator
7700 	 */
7701 
7702 	if (vars->phy_link_up) {
7703 		if (!(ELINK_SINGLE_MEDIA_DIRECT(params)) && ext_phy_link_up &&
7704 		    (ext_phy_line_speed != vars->line_speed)) {
7705 			ELINK_DEBUG_P2(cb, "Internal link speed %d is"
7706 				   " different than the external"
7707 				   " link speed %d\n", vars->line_speed,
7708 				   ext_phy_line_speed);
7709 			vars->phy_link_up = 0;
7710 		} else if (prev_line_speed != vars->line_speed) {
7711 			REG_WR(cb, NIG_REG_EGRESS_DRAIN0_MODE + params->port*4,
7712 			       0);
7713 			MSLEEP(cb, 1);
7714 		}
7715 	}
7716 
7717 	/* Anything 10 and over uses the bmac */
7718 	link_10g_plus = (vars->line_speed >= ELINK_SPEED_10000);
7719 
7720 	elink_link_int_ack(params, vars, link_10g_plus);
7721 
7722 	/* In case external phy link is up, and internal link is down
7723 	 * (not initialized yet probably after link initialization, it
7724 	 * needs to be initialized.
7725 	 * Note that after link down-up as result of cable plug, the xgxs
7726 	 * link would probably become up again without the need
7727 	 * initialize it
7728 	 */
7729 	if (!(ELINK_SINGLE_MEDIA_DIRECT(params))) {
7730 		ELINK_DEBUG_P3(cb, "ext_phy_link_up = %d, int_link_up = %d,"
7731 			   " init_preceding = %d\n", ext_phy_link_up,
7732 			   vars->phy_link_up,
7733 			   params->phy[ELINK_EXT_PHY1].flags &
7734 			   ELINK_FLAGS_INIT_XGXS_FIRST);
7735 		if (!(params->phy[ELINK_EXT_PHY1].flags &
7736 		      ELINK_FLAGS_INIT_XGXS_FIRST)
7737 		    && ext_phy_link_up && !vars->phy_link_up) {
7738 			vars->line_speed = ext_phy_line_speed;
7739 			if (vars->line_speed < ELINK_SPEED_1000)
7740 				vars->phy_flags |= PHY_SGMII_FLAG;
7741 			else
7742 				vars->phy_flags &= ~PHY_SGMII_FLAG;
7743 
7744 			if (params->phy[ELINK_INT_PHY].config_init)
7745 				params->phy[ELINK_INT_PHY].config_init(
7746 					&params->phy[ELINK_INT_PHY], params,
7747 						vars);
7748 		}
7749 	}
7750 	/* Link is up only if both local phy and external phy (in case of
7751 	 * non-direct board) are up and no fault detected on active PHY.
7752 	 */
7753 	vars->link_up = (vars->phy_link_up &&
7754 			 (ext_phy_link_up ||
7755 			  ELINK_SINGLE_MEDIA_DIRECT(params)) &&
7756 			 (phy_vars[active_external_phy].fault_detected == 0));
7757 
7758 	/* Update the PFC configuration in case it was changed */
7759 	if (params->feature_config_flags & ELINK_FEATURE_CONFIG_PFC_ENABLED)
7760 		vars->link_status |= LINK_STATUS_PFC_ENABLED;
7761 	else
7762 		vars->link_status &= ~LINK_STATUS_PFC_ENABLED;
7763 
7764 	if (vars->link_up)
7765 		rc = elink_update_link_up(params, vars, link_10g_plus);
7766 	else
7767 		rc = elink_update_link_down(params, vars);
7768 
7769 	if ((prev_link_status ^ vars->link_status) & LINK_STATUS_LINK_UP)
7770 		elink_chng_link_count(params, 0);
7771 
7772 #ifndef ELINK_AUX_POWER
7773 	/* Update MCP link status was changed */
7774 	if (params->feature_config_flags & ELINK_FEATURE_CONFIG_BC_SUPPORTS_AFEX)
7775 		elink_cb_fw_command(cb, DRV_MSG_CODE_LINK_STATUS_CHANGED, 0);
7776 #endif // ELINK_AUX_POWER
7777 
7778 	return rc;
7779 }
7780 
7781 #endif // EXCLUDE_NON_COMMON_INIT
7782 #ifndef ELINK_EMUL_ONLY
7783 /*****************************************************************************/
7784 /*			    External Phy section			     */
7785 /*****************************************************************************/
elink_ext_phy_hw_reset(struct elink_dev * cb,u8 port)7786 void elink_ext_phy_hw_reset(struct elink_dev *cb, u8 port)
7787 {
7788 	ELINK_SET_GPIO(cb, MISC_REGISTERS_GPIO_1,
7789 		       MISC_REGISTERS_GPIO_OUTPUT_LOW, port);
7790 	MSLEEP(cb, 1);
7791 	ELINK_SET_GPIO(cb, MISC_REGISTERS_GPIO_1,
7792 		       MISC_REGISTERS_GPIO_OUTPUT_HIGH, port);
7793 }
7794 
7795 #if !defined(EXCLUDE_BCM8727_BCM8073) || !defined(EXCLUDE_SFX7101) || !defined(EXCLUDE_BCM8481) || !defined(EXCLUDE_BCM84833) || !defined(EXCLUDE_SFX7101) || !defined(EXCLUDE_BCM8705) || !defined(EXCLUDE_BCM87x6)
elink_save_spirom_version(struct elink_dev * cb,u8 port,u32 spirom_ver,u32 ver_addr)7796 static void elink_save_spirom_version(struct elink_dev *cb, u8 port,
7797 				      u32 spirom_ver, u32 ver_addr)
7798 {
7799 	ELINK_DEBUG_P3(cb, "FW version 0x%x:0x%x for port %d\n",
7800 		 (u16)(spirom_ver>>16), (u16)spirom_ver, port);
7801 
7802 	if (ver_addr)
7803 		REG_WR(cb, ver_addr, spirom_ver);
7804 }
7805 
7806 #if (!defined EXCLUDE_XGXS) && (!defined EXCLUDE_COMMON_INIT)
elink_save_bcm_spirom_ver(struct elink_dev * cb,struct elink_phy * phy,u8 port)7807 static void elink_save_bcm_spirom_ver(struct elink_dev *cb,
7808 				      struct elink_phy *phy,
7809 				      u8 port)
7810 {
7811 	u16 fw_ver1, fw_ver2;
7812 
7813 	elink_cl45_read(cb, phy, MDIO_PMA_DEVAD,
7814 			MDIO_PMA_REG_ROM_VER1, &fw_ver1);
7815 	elink_cl45_read(cb, phy, MDIO_PMA_DEVAD,
7816 			MDIO_PMA_REG_ROM_VER2, &fw_ver2);
7817 	elink_save_spirom_version(cb, port, (u32)(fw_ver1<<16 | fw_ver2),
7818 				  phy->ver_addr);
7819 }
7820 #endif // EXCLUDE_XGXS
7821 
7822 #ifndef EXCLUDE_NON_COMMON_INIT
elink_ext_phy_10G_an_resolve(struct elink_dev * cb,struct elink_phy * phy,struct elink_vars * vars)7823 static void elink_ext_phy_10G_an_resolve(struct elink_dev *cb,
7824 				       struct elink_phy *phy,
7825 				       struct elink_vars *vars)
7826 {
7827 	u16 val;
7828 	elink_cl45_read(cb, phy,
7829 			MDIO_AN_DEVAD,
7830 			MDIO_AN_REG_STATUS, &val);
7831 	elink_cl45_read(cb, phy,
7832 			MDIO_AN_DEVAD,
7833 			MDIO_AN_REG_STATUS, &val);
7834 	if (val & (1<<5))
7835 		vars->link_status |= LINK_STATUS_AUTO_NEGOTIATE_COMPLETE;
7836 	if ((val & (1<<0)) == 0)
7837 		vars->link_status |= LINK_STATUS_PARALLEL_DETECTION_USED;
7838 }
7839 #endif // #ifndef EXCLUDE_NON_COMMON_INIT
7840 #endif // #if !defined(EXCLUDE_BCM8727_BCM8073) ||  !defined(EXCLUDE_BCM8481) || !defined(EXCLUDE_BCM84833) || !defined(EXCLUDE_SFX7101)
7841 
7842 /******************************************************************/
7843 /*		common BCM8073/BCM8727 PHY SECTION		  */
7844 /******************************************************************/
7845 #ifndef EXCLUDE_BCM8727_BCM8073
7846 #ifndef EXCLUDE_NON_COMMON_INIT
elink_8073_resolve_fc(struct elink_phy * phy,struct elink_params * params,struct elink_vars * vars)7847 static void elink_8073_resolve_fc(struct elink_phy *phy,
7848 				  struct elink_params *params,
7849 				  struct elink_vars *vars)
7850 {
7851 	struct elink_dev *cb = params->cb;
7852 	if (phy->req_line_speed == ELINK_SPEED_10 ||
7853 	    phy->req_line_speed == ELINK_SPEED_100) {
7854 		vars->flow_ctrl = phy->req_flow_ctrl;
7855 		return;
7856 	}
7857 
7858 	if (elink_ext_phy_resolve_fc(phy, params, vars) &&
7859 	    (vars->flow_ctrl == ELINK_FLOW_CTRL_NONE)) {
7860 		u16 pause_result;
7861 		u16 ld_pause;		/* local */
7862 		u16 lp_pause;		/* link partner */
7863 		elink_cl45_read(cb, phy,
7864 				MDIO_AN_DEVAD,
7865 				MDIO_AN_REG_CL37_FC_LD, &ld_pause);
7866 
7867 		elink_cl45_read(cb, phy,
7868 				MDIO_AN_DEVAD,
7869 				MDIO_AN_REG_CL37_FC_LP, &lp_pause);
7870 		pause_result = (ld_pause &
7871 				MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH) >> 5;
7872 		pause_result |= (lp_pause &
7873 				 MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH) >> 7;
7874 
7875 		elink_pause_resolve(vars, pause_result);
7876 		ELINK_DEBUG_P1(cb, "Ext PHY CL37 pause result 0x%x\n",
7877 			   pause_result);
7878 	}
7879 }
7880 #endif // EXCLUDE_NON_COMMON_INIT
7881 #ifndef EXCLUDE_COMMON_INIT
elink_8073_8727_external_rom_boot(struct elink_dev * cb,struct elink_phy * phy,u8 port)7882 static elink_status_t elink_8073_8727_external_rom_boot(struct elink_dev *cb,
7883 					     struct elink_phy *phy,
7884 					     u8 port)
7885 {
7886 	u32 count = 0;
7887 	u16 fw_ver1, fw_msgout;
7888 	elink_status_t rc = ELINK_STATUS_OK;
7889 
7890 	/* Boot port from external ROM  */
7891 	/* EDC grst */
7892 	elink_cl45_write(cb, phy,
7893 			 MDIO_PMA_DEVAD,
7894 			 MDIO_PMA_REG_GEN_CTRL,
7895 			 0x0001);
7896 
7897 	/* Ucode reboot and rst */
7898 	elink_cl45_write(cb, phy,
7899 			 MDIO_PMA_DEVAD,
7900 			 MDIO_PMA_REG_GEN_CTRL,
7901 			 0x008c);
7902 
7903 	elink_cl45_write(cb, phy,
7904 			 MDIO_PMA_DEVAD,
7905 			 MDIO_PMA_REG_MISC_CTRL1, 0x0001);
7906 
7907 	/* Reset internal microprocessor */
7908 	elink_cl45_write(cb, phy,
7909 			 MDIO_PMA_DEVAD,
7910 			 MDIO_PMA_REG_GEN_CTRL,
7911 			 MDIO_PMA_REG_GEN_CTRL_ROM_MICRO_RESET);
7912 
7913 	/* Release srst bit */
7914 	elink_cl45_write(cb, phy,
7915 			 MDIO_PMA_DEVAD,
7916 			 MDIO_PMA_REG_GEN_CTRL,
7917 			 MDIO_PMA_REG_GEN_CTRL_ROM_RESET_INTERNAL_MP);
7918 
7919 	/* Delay 100ms per the PHY specifications */
7920 	MSLEEP(cb, 100);
7921 
7922 	/* 8073 sometimes taking longer to download */
7923 	do {
7924 		count++;
7925 		if (count > 300) {
7926 			ELINK_DEBUG_P2(cb,
7927 				 "elink_8073_8727_external_rom_boot port %x:"
7928 				 "Download failed. fw version = 0x%x\n",
7929 				 port, fw_ver1);
7930 			rc = ELINK_STATUS_ERROR;
7931 			break;
7932 		}
7933 
7934 		elink_cl45_read(cb, phy,
7935 				MDIO_PMA_DEVAD,
7936 				MDIO_PMA_REG_ROM_VER1, &fw_ver1);
7937 		elink_cl45_read(cb, phy,
7938 				MDIO_PMA_DEVAD,
7939 				MDIO_PMA_REG_M8051_MSGOUT_REG, &fw_msgout);
7940 
7941 		MSLEEP(cb, 1);
7942 	} while (fw_ver1 == 0 || fw_ver1 == 0x4321 ||
7943 			((fw_msgout & 0xff) != 0x03 && (phy->type ==
7944 			PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8073)));
7945 
7946 	/* Clear ser_boot_ctl bit */
7947 	elink_cl45_write(cb, phy,
7948 			 MDIO_PMA_DEVAD,
7949 			 MDIO_PMA_REG_MISC_CTRL1, 0x0000);
7950 	elink_save_bcm_spirom_ver(cb, phy, port);
7951 
7952 	ELINK_DEBUG_P2(cb,
7953 		 "elink_8073_8727_external_rom_boot port %x:"
7954 		 "Download complete. fw version = 0x%x\n",
7955 		 port, fw_ver1);
7956 
7957 	return rc;
7958 }
7959 #endif // EXCLUDE_COMMON_INIT
7960 
7961 /******************************************************************/
7962 /*			BCM8073 PHY SECTION			  */
7963 /******************************************************************/
7964 #ifndef EXCLUDE_NON_COMMON_INIT
elink_8073_is_snr_needed(struct elink_dev * cb,struct elink_phy * phy)7965 static elink_status_t elink_8073_is_snr_needed(struct elink_dev *cb, struct elink_phy *phy)
7966 {
7967 	/* This is only required for 8073A1, version 102 only */
7968 	u16 val;
7969 
7970 	/* Read 8073 HW revision*/
7971 	elink_cl45_read(cb, phy,
7972 			MDIO_PMA_DEVAD,
7973 			MDIO_PMA_REG_8073_CHIP_REV, &val);
7974 
7975 	if (val != 1) {
7976 		/* No need to workaround in 8073 A1 */
7977 		return ELINK_STATUS_OK;
7978 	}
7979 
7980 	elink_cl45_read(cb, phy,
7981 			MDIO_PMA_DEVAD,
7982 			MDIO_PMA_REG_ROM_VER2, &val);
7983 
7984 	/* SNR should be applied only for version 0x102 */
7985 	if (val != 0x102)
7986 		return ELINK_STATUS_OK;
7987 
7988 	return 1;
7989 }
7990 
elink_8073_xaui_wa(struct elink_dev * cb,struct elink_phy * phy)7991 static elink_status_t elink_8073_xaui_wa(struct elink_dev *cb, struct elink_phy *phy)
7992 {
7993 	u16 val, cnt, cnt1 ;
7994 
7995 	elink_cl45_read(cb, phy,
7996 			MDIO_PMA_DEVAD,
7997 			MDIO_PMA_REG_8073_CHIP_REV, &val);
7998 
7999 	if (val > 0) {
8000 		/* No need to workaround in 8073 A1 */
8001 		return ELINK_STATUS_OK;
8002 	}
8003 	/* XAUI workaround in 8073 A0: */
8004 
8005 	/* After loading the boot ROM and restarting Autoneg, poll
8006 	 * Dev1, Reg $C820:
8007 	 */
8008 
8009 	for (cnt = 0; cnt < 1000; cnt++) {
8010 		elink_cl45_read(cb, phy,
8011 				MDIO_PMA_DEVAD,
8012 				MDIO_PMA_REG_8073_SPEED_LINK_STATUS,
8013 				&val);
8014 		  /* If bit [14] = 0 or bit [13] = 0, continue on with
8015 		   * system initialization (XAUI work-around not required, as
8016 		   * these bits indicate 2.5G or 1G link up).
8017 		   */
8018 		if (!(val & (1<<14)) || !(val & (1<<13))) {
8019 			ELINK_DEBUG_P0(cb, "XAUI work-around not required\n");
8020 			return ELINK_STATUS_OK;
8021 		} else if (!(val & (1<<15))) {
8022 			ELINK_DEBUG_P0(cb, "bit 15 went off\n");
8023 			/* If bit 15 is 0, then poll Dev1, Reg $C841 until it's
8024 			 * MSB (bit15) goes to 1 (indicating that the XAUI
8025 			 * workaround has completed), then continue on with
8026 			 * system initialization.
8027 			 */
8028 			for (cnt1 = 0; cnt1 < 1000; cnt1++) {
8029 				elink_cl45_read(cb, phy,
8030 					MDIO_PMA_DEVAD,
8031 					MDIO_PMA_REG_8073_XAUI_WA, &val);
8032 				if (val & (1<<15)) {
8033 					ELINK_DEBUG_P0(cb,
8034 					  "XAUI workaround has completed\n");
8035 					return ELINK_STATUS_OK;
8036 				 }
8037 				 MSLEEP(cb, 3);
8038 			}
8039 			break;
8040 		}
8041 		MSLEEP(cb, 3);
8042 	}
8043 	ELINK_DEBUG_P0(cb, "Warning: XAUI work-around timeout !!!\n");
8044 	return ELINK_STATUS_ERROR;
8045 }
8046 
8047 #ifdef ELINK_INCLUDE_LOOPBACK
elink_807x_force_10G(struct elink_dev * cb,struct elink_phy * phy)8048 static void elink_807x_force_10G(struct elink_dev *cb, struct elink_phy *phy)
8049 {
8050 	/* Force KR or KX */
8051 	elink_cl45_write(cb, phy,
8052 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 0x2040);
8053 	elink_cl45_write(cb, phy,
8054 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_10G_CTRL2, 0x000b);
8055 	elink_cl45_write(cb, phy,
8056 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_BCM_CTRL, 0x0000);
8057 	elink_cl45_write(cb, phy,
8058 			 MDIO_AN_DEVAD, MDIO_AN_REG_CTRL, 0x0000);
8059 }
8060 #endif // ELINK_INCLUDE_LOOPBACK
8061 
elink_8073_set_pause_cl37(struct elink_params * params,struct elink_phy * phy,struct elink_vars * vars)8062 static void elink_8073_set_pause_cl37(struct elink_params *params,
8063 				      struct elink_phy *phy,
8064 				      struct elink_vars *vars)
8065 {
8066 	u16 cl37_val;
8067 	struct elink_dev *cb = params->cb;
8068 	elink_cl45_read(cb, phy,
8069 			MDIO_AN_DEVAD, MDIO_AN_REG_CL37_FC_LD, &cl37_val);
8070 
8071 	cl37_val &= ~MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH;
8072 	/* Please refer to Table 28B-3 of 802.3ab-1999 spec. */
8073 	elink_calc_ieee_aneg_adv(phy, params, &vars->ieee_fc);
8074 	if ((vars->ieee_fc &
8075 	    MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_SYMMETRIC) ==
8076 	    MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_SYMMETRIC) {
8077 		cl37_val |=  MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_SYMMETRIC;
8078 	}
8079 	if ((vars->ieee_fc &
8080 	    MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_ASYMMETRIC) ==
8081 	    MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_ASYMMETRIC) {
8082 		cl37_val |=  MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_ASYMMETRIC;
8083 	}
8084 	if ((vars->ieee_fc &
8085 	    MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH) ==
8086 	    MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH) {
8087 		cl37_val |= MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH;
8088 	}
8089 	ELINK_DEBUG_P1(cb,
8090 		 "Ext phy AN advertize cl37 0x%x\n", cl37_val);
8091 
8092 	elink_cl45_write(cb, phy,
8093 			 MDIO_AN_DEVAD, MDIO_AN_REG_CL37_FC_LD, cl37_val);
8094 #ifndef ELINK_AUX_POWER
8095 	MSLEEP(cb, 500);
8096 #endif // ELINK_AUX_POWER
8097 }
8098 
elink_8073_specific_func(struct elink_phy * phy,struct elink_params * params,u32 action)8099 static void elink_8073_specific_func(struct elink_phy *phy,
8100 				     struct elink_params *params,
8101 				     u32 action)
8102 {
8103 	struct elink_dev *cb = params->cb;
8104 	switch (action) {
8105 	case ELINK_PHY_INIT:
8106 		/* Enable LASI */
8107 		elink_cl45_write(cb, phy,
8108 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXCTRL, (1<<2));
8109 		elink_cl45_write(cb, phy,
8110 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_CTRL,  0x0004);
8111 		break;
8112 	}
8113 }
8114 
elink_8073_config_init(struct elink_phy * phy,struct elink_params * params,struct elink_vars * vars)8115 static elink_status_t elink_8073_config_init(struct elink_phy *phy,
8116 				  struct elink_params *params,
8117 				  struct elink_vars *vars)
8118 {
8119 	struct elink_dev *cb = params->cb;
8120 	u16 val = 0, tmp1;
8121 	u8 gpio_port;
8122 	ELINK_DEBUG_P0(cb, "Init 8073\n");
8123 
8124 	if (CHIP_IS_E2(params->chip_id))
8125 		gpio_port = PATH_ID(cb);
8126 	else
8127 		gpio_port = params->port;
8128 	/* Restore normal power mode*/
8129 	ELINK_SET_GPIO(cb, MISC_REGISTERS_GPIO_2,
8130 		       MISC_REGISTERS_GPIO_OUTPUT_HIGH, gpio_port);
8131 
8132 	ELINK_SET_GPIO(cb, MISC_REGISTERS_GPIO_1,
8133 		       MISC_REGISTERS_GPIO_OUTPUT_HIGH, gpio_port);
8134 
8135 	elink_8073_specific_func(phy, params, ELINK_PHY_INIT);
8136 	elink_8073_set_pause_cl37(params, phy, vars);
8137 
8138 	elink_cl45_read(cb, phy,
8139 			MDIO_PMA_DEVAD, MDIO_PMA_REG_M8051_MSGOUT_REG, &tmp1);
8140 
8141 	elink_cl45_read(cb, phy,
8142 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXSTAT, &tmp1);
8143 
8144 	ELINK_DEBUG_P1(cb, "Before rom RX_ALARM(port1): 0x%x\n", tmp1);
8145 
8146 	/* Swap polarity if required - Must be done only in non-1G mode */
8147 	if (params->lane_config & PORT_HW_CFG_SWAP_PHY_POLARITY_ENABLED) {
8148 		/* Configure the 8073 to swap _P and _N of the KR lines */
8149 		ELINK_DEBUG_P0(cb, "Swapping polarity for the 8073\n");
8150 		/* 10G Rx/Tx and 1G Tx signal polarity swap */
8151 		elink_cl45_read(cb, phy,
8152 				MDIO_PMA_DEVAD,
8153 				MDIO_PMA_REG_8073_OPT_DIGITAL_CTRL, &val);
8154 		elink_cl45_write(cb, phy,
8155 				 MDIO_PMA_DEVAD,
8156 				 MDIO_PMA_REG_8073_OPT_DIGITAL_CTRL,
8157 				 (val | (3<<9)));
8158 	}
8159 
8160 
8161 	/* Enable CL37 BAM */
8162 	if (REG_RD(cb, params->shmem_base +
8163 			 OFFSETOF(struct shmem_region, dev_info.
8164 				  port_hw_config[params->port].default_cfg)) &
8165 	    PORT_HW_CFG_ENABLE_BAM_ON_KR_ENABLED) {
8166 
8167 		elink_cl45_read(cb, phy,
8168 				MDIO_AN_DEVAD,
8169 				MDIO_AN_REG_8073_BAM, &val);
8170 		elink_cl45_write(cb, phy,
8171 				 MDIO_AN_DEVAD,
8172 				 MDIO_AN_REG_8073_BAM, val | 1);
8173 		ELINK_DEBUG_P0(cb, "Enable CL37 BAM on KR\n");
8174 	}
8175 #ifdef ELINK_INCLUDE_LOOPBACK
8176 	if (params->loopback_mode == ELINK_LOOPBACK_EXT) {
8177 		elink_807x_force_10G(cb, phy);
8178 		ELINK_DEBUG_P0(cb, "Forced speed 10G on 807X\n");
8179 		return ELINK_STATUS_OK;
8180 	} else {
8181 		elink_cl45_write(cb, phy,
8182 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_BCM_CTRL, 0x0002);
8183 	}
8184 #endif // ELINK_INCLUDE_LOOPBACK
8185 	if (phy->req_line_speed != ELINK_SPEED_AUTO_NEG) {
8186 		if (phy->req_line_speed == ELINK_SPEED_10000) {
8187 			val = (1<<7);
8188 		} else if (phy->req_line_speed ==  ELINK_SPEED_2500) {
8189 			val = (1<<5);
8190 			/* Note that 2.5G works only when used with 1G
8191 			 * advertisement
8192 			 */
8193 		} else
8194 			val = (1<<5);
8195 	} else {
8196 		val = 0;
8197 		if (phy->speed_cap_mask &
8198 			PORT_HW_CFG_SPEED_CAPABILITY_D0_10G)
8199 			val |= (1<<7);
8200 
8201 		/* Note that 2.5G works only when used with 1G advertisement */
8202 		if (phy->speed_cap_mask &
8203 			(PORT_HW_CFG_SPEED_CAPABILITY_D0_1G |
8204 			 PORT_HW_CFG_SPEED_CAPABILITY_D0_2_5G))
8205 			val |= (1<<5);
8206 		ELINK_DEBUG_P1(cb, "807x autoneg val = 0x%x\n", val);
8207 	}
8208 
8209 	elink_cl45_write(cb, phy, MDIO_AN_DEVAD, MDIO_AN_REG_ADV, val);
8210 	elink_cl45_read(cb, phy, MDIO_AN_DEVAD, MDIO_AN_REG_8073_2_5G, &tmp1);
8211 
8212 	if (((phy->speed_cap_mask & PORT_HW_CFG_SPEED_CAPABILITY_D0_2_5G) &&
8213 	     (phy->req_line_speed == ELINK_SPEED_AUTO_NEG)) ||
8214 	    (phy->req_line_speed == ELINK_SPEED_2500)) {
8215 		u16 phy_ver;
8216 		/* Allow 2.5G for A1 and above */
8217 		elink_cl45_read(cb, phy,
8218 				MDIO_PMA_DEVAD, MDIO_PMA_REG_8073_CHIP_REV,
8219 				&phy_ver);
8220 		ELINK_DEBUG_P0(cb, "Add 2.5G\n");
8221 		if (phy_ver > 0)
8222 			tmp1 |= 1;
8223 		else
8224 			tmp1 &= 0xfffe;
8225 	} else {
8226 		ELINK_DEBUG_P0(cb, "Disable 2.5G\n");
8227 		tmp1 &= 0xfffe;
8228 	}
8229 
8230 	elink_cl45_write(cb, phy, MDIO_AN_DEVAD, MDIO_AN_REG_8073_2_5G, tmp1);
8231 	/* Add support for CL37 (passive mode) II */
8232 
8233 	elink_cl45_read(cb, phy, MDIO_AN_DEVAD, MDIO_AN_REG_CL37_FC_LD, &tmp1);
8234 	elink_cl45_write(cb, phy, MDIO_AN_DEVAD, MDIO_AN_REG_CL37_FC_LD,
8235 			 (tmp1 | ((phy->req_duplex == DUPLEX_FULL) ?
8236 				  0x20 : 0x40)));
8237 
8238 	/* Add support for CL37 (passive mode) III */
8239 	elink_cl45_write(cb, phy, MDIO_AN_DEVAD, MDIO_AN_REG_CL37_AN, 0x1000);
8240 
8241 	/* The SNR will improve about 2db by changing BW and FEE main
8242 	 * tap. Rest commands are executed after link is up
8243 	 * Change FFE main cursor to 5 in EDC register
8244 	 */
8245 	if (elink_8073_is_snr_needed(cb, phy))
8246 		elink_cl45_write(cb, phy,
8247 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_EDC_FFE_MAIN,
8248 				 0xFB0C);
8249 
8250 	/* Enable FEC (Forware Error Correction) Request in the AN */
8251 	elink_cl45_read(cb, phy, MDIO_AN_DEVAD, MDIO_AN_REG_ADV2, &tmp1);
8252 	tmp1 |= (1<<15);
8253 	elink_cl45_write(cb, phy, MDIO_AN_DEVAD, MDIO_AN_REG_ADV2, tmp1);
8254 
8255 	elink_ext_phy_set_pause(params, phy, vars);
8256 
8257 	/* Restart autoneg */
8258 	MSLEEP(cb, 500);
8259 	elink_cl45_write(cb, phy, MDIO_AN_DEVAD, MDIO_AN_REG_CTRL, 0x1200);
8260 	ELINK_DEBUG_P2(cb, "807x Autoneg Restart: Advertise 1G=%x, 10G=%x\n",
8261 		   ((val & (1<<5)) > 0), ((val & (1<<7)) > 0));
8262 	return ELINK_STATUS_OK;
8263 }
8264 
8265 static elink_status_t
elink_8073_read_status(struct elink_phy * phy,struct elink_params * params,struct elink_vars * vars)8266 elink_8073_read_status(struct elink_phy *phy, struct elink_params *params,
8267     struct elink_vars *vars)
8268 {
8269 	struct elink_dev *cb = params->cb;
8270 	u8 link_up = 0;
8271 	u16 val1, val2;
8272 	u16 link_status = 0;
8273 	u16 an1000_status = 0;
8274 
8275 	elink_cl45_read(cb, phy,
8276 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_STAT, &val1);
8277 
8278 	ELINK_DEBUG_P1(cb, "8703 LASI status 0x%x\n", val1);
8279 
8280 	/* Clear the interrupt LASI status register */
8281 	elink_cl45_read(cb, phy,
8282 			MDIO_PCS_DEVAD, MDIO_PCS_REG_STATUS, &val2);
8283 	elink_cl45_read(cb, phy,
8284 			MDIO_PCS_DEVAD, MDIO_PCS_REG_STATUS, &val1);
8285 	ELINK_DEBUG_P2(cb, "807x PCS status 0x%x->0x%x\n", val2, val1);
8286 	/* Clear MSG-OUT */
8287 	elink_cl45_read(cb, phy,
8288 			MDIO_PMA_DEVAD, MDIO_PMA_REG_M8051_MSGOUT_REG, &val1);
8289 
8290 	/* Check the LASI */
8291 	elink_cl45_read(cb, phy,
8292 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXSTAT, &val2);
8293 
8294 	ELINK_DEBUG_P1(cb, "KR 0x9003 0x%x\n", val2);
8295 
8296 	/* Check the link status */
8297 	elink_cl45_read(cb, phy,
8298 			MDIO_PCS_DEVAD, MDIO_PCS_REG_STATUS, &val2);
8299 	ELINK_DEBUG_P1(cb, "KR PCS status 0x%x\n", val2);
8300 
8301 	elink_cl45_read(cb, phy,
8302 			MDIO_PMA_DEVAD, MDIO_PMA_REG_STATUS, &val2);
8303 	elink_cl45_read(cb, phy,
8304 			MDIO_PMA_DEVAD, MDIO_PMA_REG_STATUS, &val1);
8305 	link_up = ((val1 & 4) == 4);
8306 	ELINK_DEBUG_P1(cb, "PMA_REG_STATUS=0x%x\n", val1);
8307 
8308 	if (link_up &&
8309 	     ((phy->req_line_speed != ELINK_SPEED_10000))) {
8310 		if (elink_8073_xaui_wa(cb, phy) != 0)
8311 			return 0;
8312 	}
8313 	elink_cl45_read(cb, phy,
8314 			MDIO_AN_DEVAD, MDIO_AN_REG_LINK_STATUS, &an1000_status);
8315 	elink_cl45_read(cb, phy,
8316 			MDIO_AN_DEVAD, MDIO_AN_REG_LINK_STATUS, &an1000_status);
8317 
8318 	/* Check the link status on 1.1.2 */
8319 	elink_cl45_read(cb, phy,
8320 			MDIO_PMA_DEVAD, MDIO_PMA_REG_STATUS, &val2);
8321 	elink_cl45_read(cb, phy,
8322 			MDIO_PMA_DEVAD, MDIO_PMA_REG_STATUS, &val1);
8323 	ELINK_DEBUG_P3(cb, "KR PMA status 0x%x->0x%x,"
8324 		   "an_link_status=0x%x\n", val2, val1, an1000_status);
8325 
8326 	link_up = (((val1 & 4) == 4) || (an1000_status & (1<<1)));
8327 	if (link_up && elink_8073_is_snr_needed(cb, phy)) {
8328 		/* The SNR will improve about 2dbby changing the BW and FEE main
8329 		 * tap. The 1st write to change FFE main tap is set before
8330 		 * restart AN. Change PLL Bandwidth in EDC register
8331 		 */
8332 		elink_cl45_write(cb, phy,
8333 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_PLL_BANDWIDTH,
8334 				 0x26BC);
8335 
8336 		/* Change CDR Bandwidth in EDC register */
8337 		elink_cl45_write(cb, phy,
8338 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_CDR_BANDWIDTH,
8339 				 0x0333);
8340 	}
8341 	elink_cl45_read(cb, phy,
8342 			MDIO_PMA_DEVAD, MDIO_PMA_REG_8073_SPEED_LINK_STATUS,
8343 			&link_status);
8344 
8345 	/* Bits 0..2 --> speed detected, bits 13..15--> link is down */
8346 	if ((link_status & (1<<2)) && (!(link_status & (1<<15)))) {
8347 		link_up = 1;
8348 		vars->line_speed = ELINK_SPEED_10000;
8349 		ELINK_DEBUG_P1(cb, "port %x: External link up in 10G\n",
8350 			   params->port);
8351 	} else if ((link_status & (1<<1)) && (!(link_status & (1<<14)))) {
8352 		link_up = 1;
8353 		vars->line_speed = ELINK_SPEED_2500;
8354 		ELINK_DEBUG_P1(cb, "port %x: External link up in 2.5G\n",
8355 			   params->port);
8356 	} else if ((link_status & (1<<0)) && (!(link_status & (1<<13)))) {
8357 		link_up = 1;
8358 		vars->line_speed = ELINK_SPEED_1000;
8359 		ELINK_DEBUG_P1(cb, "port %x: External link up in 1G\n",
8360 			   params->port);
8361 	} else {
8362 		link_up = 0;
8363 		ELINK_DEBUG_P1(cb, "port %x: External link is down\n",
8364 			   params->port);
8365 	}
8366 
8367 	if (link_up) {
8368 		/* Swap polarity if required */
8369 		if (params->lane_config &
8370 		    PORT_HW_CFG_SWAP_PHY_POLARITY_ENABLED) {
8371 			/* Configure the 8073 to swap P and N of the KR lines */
8372 			elink_cl45_read(cb, phy,
8373 					MDIO_XS_DEVAD,
8374 					MDIO_XS_REG_8073_RX_CTRL_PCIE, &val1);
8375 			/* Set bit 3 to invert Rx in 1G mode and clear this bit
8376 			 * when it`s in 10G mode.
8377 			 */
8378 			if (vars->line_speed == ELINK_SPEED_1000) {
8379 				ELINK_DEBUG_P0(cb, "Swapping 1G polarity for"
8380 					      "the 8073\n");
8381 				val1 |= (1<<3);
8382 			} else
8383 				val1 &= ~(1<<3);
8384 
8385 			elink_cl45_write(cb, phy,
8386 					 MDIO_XS_DEVAD,
8387 					 MDIO_XS_REG_8073_RX_CTRL_PCIE,
8388 					 val1);
8389 		}
8390 		elink_ext_phy_10G_an_resolve(cb, phy, vars);
8391 		elink_8073_resolve_fc(phy, params, vars);
8392 		vars->duplex = DUPLEX_FULL;
8393 	}
8394 
8395 	if (vars->link_status & LINK_STATUS_AUTO_NEGOTIATE_COMPLETE) {
8396 		elink_cl45_read(cb, phy, MDIO_AN_DEVAD,
8397 				MDIO_AN_REG_LP_AUTO_NEG2, &val1);
8398 
8399 		if (val1 & (1<<5))
8400 			vars->link_status |=
8401 				LINK_STATUS_LINK_PARTNER_1000TFD_CAPABLE;
8402 		if (val1 & (1<<7))
8403 			vars->link_status |=
8404 				LINK_STATUS_LINK_PARTNER_10GXFD_CAPABLE;
8405 	}
8406 
8407 	return link_up;
8408 }
8409 
elink_8073_link_reset(struct elink_phy * phy,struct elink_params * params)8410 static void elink_8073_link_reset(struct elink_phy *phy,
8411 				  struct elink_params *params)
8412 {
8413 #ifndef EXCLUDE_LINK_RESET
8414 	struct elink_dev *cb = params->cb;
8415 	u8 gpio_port;
8416 	if (CHIP_IS_E2(params->chip_id))
8417 		gpio_port = PATH_ID(cb);
8418 	else
8419 		gpio_port = params->port;
8420 	ELINK_DEBUG_P1(cb, "Setting 8073 port %d into low power mode\n",
8421 	   gpio_port);
8422 	ELINK_SET_GPIO(cb, MISC_REGISTERS_GPIO_2,
8423 		       MISC_REGISTERS_GPIO_OUTPUT_LOW,
8424 		       gpio_port);
8425 #endif // EXCLUDE_LINK_RESET
8426 }
8427 #endif // EXCLUDE_NON_COMMON_INIT
8428 #endif // EXCLUDE_BCM8727_BCM8073
8429 
8430 /******************************************************************/
8431 /*			BCM8705 PHY SECTION			  */
8432 /******************************************************************/
8433 #ifndef EXCLUDE_BCM8705
elink_8705_config_init(struct elink_phy * phy,struct elink_params * params,struct elink_vars * vars)8434 static elink_status_t elink_8705_config_init(struct elink_phy *phy,
8435 				  struct elink_params *params,
8436 				  struct elink_vars *vars)
8437 {
8438 	struct elink_dev *cb = params->cb;
8439 	ELINK_DEBUG_P0(cb, "init 8705\n");
8440 	/* Restore normal power mode*/
8441 	ELINK_SET_GPIO(cb, MISC_REGISTERS_GPIO_2,
8442 		       MISC_REGISTERS_GPIO_OUTPUT_HIGH, params->port);
8443 	/* HW reset */
8444 	elink_ext_phy_hw_reset(cb, params->port);
8445 	elink_cl45_write(cb, phy, MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 0xa040);
8446 	elink_wait_reset_complete(cb, phy, params);
8447 
8448 	elink_cl45_write(cb, phy,
8449 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_MISC_CTRL, 0x8288);
8450 	elink_cl45_write(cb, phy,
8451 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_PHY_IDENTIFIER, 0x7fbf);
8452 	elink_cl45_write(cb, phy,
8453 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_CMU_PLL_BYPASS, 0x0100);
8454 	elink_cl45_write(cb, phy,
8455 			 MDIO_WIS_DEVAD, MDIO_WIS_REG_LASI_CNTL, 0x1);
8456 	/* BCM8705 doesn't have microcode, hence the 0 */
8457 	elink_save_spirom_version(cb, params->port, params->shmem_base, 0);
8458 	return ELINK_STATUS_OK;
8459 }
8460 
8461 static elink_status_t
elink_8705_read_status(struct elink_phy * phy,struct elink_params * params,struct elink_vars * vars)8462 elink_8705_read_status(struct elink_phy *phy, struct elink_params *params,
8463     struct elink_vars *vars)
8464 {
8465 	u8 link_up = 0;
8466 	u16 val1, rx_sd;
8467 	struct elink_dev *cb = params->cb;
8468 	ELINK_DEBUG_P0(cb, "read status 8705\n");
8469 	elink_cl45_read(cb, phy,
8470 		      MDIO_WIS_DEVAD, MDIO_WIS_REG_LASI_STATUS, &val1);
8471 	ELINK_DEBUG_P1(cb, "8705 LASI status 0x%x\n", val1);
8472 
8473 	elink_cl45_read(cb, phy,
8474 		      MDIO_WIS_DEVAD, MDIO_WIS_REG_LASI_STATUS, &val1);
8475 	ELINK_DEBUG_P1(cb, "8705 LASI status 0x%x\n", val1);
8476 
8477 	elink_cl45_read(cb, phy,
8478 		      MDIO_PMA_DEVAD, MDIO_PMA_REG_RX_SD, &rx_sd);
8479 
8480 	elink_cl45_read(cb, phy,
8481 		      MDIO_PMA_DEVAD, 0xc809, &val1);
8482 	elink_cl45_read(cb, phy,
8483 		      MDIO_PMA_DEVAD, 0xc809, &val1);
8484 
8485 	ELINK_DEBUG_P1(cb, "8705 1.c809 val=0x%x\n", val1);
8486 	link_up = ((rx_sd & 0x1) && (val1 & (1<<9)) && ((val1 & (1<<8)) == 0));
8487 	if (link_up) {
8488 		vars->line_speed = ELINK_SPEED_10000;
8489 		elink_ext_phy_resolve_fc(phy, params, vars);
8490 	}
8491 	return link_up;
8492 }
8493 
8494 #endif /* EXCLUDE_BCM8705 */
8495 /******************************************************************/
8496 /*			SFP+ module Section			  */
8497 /******************************************************************/
8498 #ifndef EXCLUDE_NON_COMMON_INIT
8499 #ifndef EXCLUDE_BCM8727_BCM8073
elink_set_disable_pmd_transmit(struct elink_params * params,struct elink_phy * phy,u8 pmd_dis)8500 static void elink_set_disable_pmd_transmit(struct elink_params *params,
8501 					   struct elink_phy *phy,
8502 					   u8 pmd_dis)
8503 {
8504 	struct elink_dev *cb = params->cb;
8505 	/* Disable transmitter only for bootcodes which can enable it afterwards
8506 	 * (for D3 link)
8507 	 */
8508 	if (pmd_dis) {
8509 		if (params->feature_config_flags &
8510 		     ELINK_FEATURE_CONFIG_BC_SUPPORTS_SFP_TX_DISABLED) {
8511 			ELINK_DEBUG_P0(cb, "Disabling PMD transmitter\n");
8512 		} else {
8513 			ELINK_DEBUG_P0(cb, "NOT disabling PMD transmitter\n");
8514 			return;
8515 		}
8516 	} else
8517 		ELINK_DEBUG_P0(cb, "Enabling PMD transmitter\n");
8518 	elink_cl45_write(cb, phy,
8519 			 MDIO_PMA_DEVAD,
8520 			 MDIO_PMA_REG_TX_DISABLE, pmd_dis);
8521 }
8522 #endif // EXCLUDE_BCM8727_BCM8073
8523 
8524 #if !defined(EXCLUDE_BCM87x6) || !defined(EXCLUDE_BCM8727_BCM8073)
elink_get_gpio_port(struct elink_params * params)8525 static u8 elink_get_gpio_port(struct elink_params *params)
8526 {
8527 	u8 gpio_port;
8528 	u32 swap_val, swap_override;
8529 	struct elink_dev *cb = params->cb;
8530 	if (CHIP_IS_E2(params->chip_id))
8531 		gpio_port = PATH_ID(cb);
8532 	else
8533 		gpio_port = params->port;
8534 	swap_val = REG_RD(cb, NIG_REG_PORT_SWAP);
8535 	swap_override = REG_RD(cb, NIG_REG_STRAP_OVERRIDE);
8536 	return gpio_port ^ (swap_val && swap_override);
8537 }
8538 
elink_sfp_e1e2_set_transmitter(struct elink_params * params,struct elink_phy * phy,u8 tx_en)8539 static void elink_sfp_e1e2_set_transmitter(struct elink_params *params,
8540 					   struct elink_phy *phy,
8541 					   u8 tx_en)
8542 {
8543 	u16 val;
8544 	u8 port = params->port;
8545 	struct elink_dev *cb = params->cb;
8546 	u32 tx_en_mode;
8547 
8548 	/* Disable/Enable transmitter ( TX laser of the SFP+ module.)*/
8549 	tx_en_mode = REG_RD(cb, params->shmem_base +
8550 			    OFFSETOF(struct shmem_region,
8551 				     dev_info.port_hw_config[port].sfp_ctrl)) &
8552 		PORT_HW_CFG_TX_LASER_MASK;
8553 	ELINK_DEBUG_P3(cb, "Setting transmitter tx_en=%x for port %x "
8554 			   "mode = %x\n", tx_en, port, tx_en_mode);
8555 	switch (tx_en_mode) {
8556 	case PORT_HW_CFG_TX_LASER_MDIO:
8557 
8558 		elink_cl45_read(cb, phy,
8559 				MDIO_PMA_DEVAD,
8560 				MDIO_PMA_REG_PHY_IDENTIFIER,
8561 				&val);
8562 
8563 		if (tx_en)
8564 			val &= ~(1<<15);
8565 		else
8566 			val |= (1<<15);
8567 
8568 		elink_cl45_write(cb, phy,
8569 				 MDIO_PMA_DEVAD,
8570 				 MDIO_PMA_REG_PHY_IDENTIFIER,
8571 				 val);
8572 	break;
8573 	case PORT_HW_CFG_TX_LASER_GPIO0:
8574 	case PORT_HW_CFG_TX_LASER_GPIO1:
8575 	case PORT_HW_CFG_TX_LASER_GPIO2:
8576 	case PORT_HW_CFG_TX_LASER_GPIO3:
8577 	{
8578 		u16 gpio_pin;
8579 		u8 gpio_port, gpio_mode;
8580 		if (tx_en)
8581 			gpio_mode = MISC_REGISTERS_GPIO_OUTPUT_HIGH;
8582 		else
8583 			gpio_mode = MISC_REGISTERS_GPIO_OUTPUT_LOW;
8584 
8585 		gpio_pin = tx_en_mode - PORT_HW_CFG_TX_LASER_GPIO0;
8586 		gpio_port = elink_get_gpio_port(params);
8587 		ELINK_SET_GPIO(cb, gpio_pin, gpio_mode, gpio_port);
8588 		break;
8589 	}
8590 	default:
8591 		ELINK_DEBUG_P1(cb, "Invalid TX_LASER_MDIO 0x%x\n", tx_en_mode);
8592 		break;
8593 	}
8594 }
8595 #endif /* !defined(EXCLUDE_BCM87x6) || !defined(EXCLUDE_BCM8727_BCM8073) */
8596 
elink_sfp_set_transmitter(struct elink_params * params,struct elink_phy * phy,u8 tx_en)8597 static void elink_sfp_set_transmitter(struct elink_params *params,
8598 				      struct elink_phy *phy,
8599 				      u8 tx_en)
8600 {
8601 #ifdef ELINK_ENHANCEMENTS
8602 	struct elink_dev *cb = params->cb;
8603 	ELINK_DEBUG_P1(cb, "Setting SFP+ transmitter to %d\n", tx_en);
8604 #endif // ELINK_ENHANCEMENTS
8605 #ifndef EXCLUDE_WARPCORE
8606 	if (CHIP_IS_E3(params->chip_id))
8607 		elink_sfp_e3_set_transmitter(params, phy, tx_en);
8608 #endif //  EXCLUDE_WARPCORE
8609 #ifdef ELINK_ENHANCEMENTS
8610 	else
8611 #endif // ELINK_ENHANCEMENTS
8612 #if !defined(EXCLUDE_BCM87x6) || !defined(EXCLUDE_BCM8727_BCM8073)
8613 		elink_sfp_e1e2_set_transmitter(params, phy, tx_en);
8614 #endif
8615 }
8616 
elink_8726_read_sfp_module_eeprom(struct elink_phy * phy,struct elink_params * params,u8 dev_addr,u16 addr,u8 byte_cnt,u8 * o_buf,u8 is_init)8617 static elink_status_t elink_8726_read_sfp_module_eeprom(struct elink_phy *phy,
8618 					     struct elink_params *params,
8619 					     u8 dev_addr, u16 addr, u8 byte_cnt,
8620 					     u8 *o_buf, u8 is_init)
8621 {
8622 #ifndef EXCLUDE_BCM87x6
8623 	struct elink_dev *cb = params->cb;
8624 	u16 val = 0;
8625 	u16 i;
8626 	if (byte_cnt > ELINK_SFP_EEPROM_PAGE_SIZE) {
8627 		ELINK_DEBUG_P0(cb,
8628 		   "Reading from eeprom is limited to 0xf\n");
8629 		return ELINK_STATUS_ERROR;
8630 	}
8631 	/* Set the read command byte count */
8632 	elink_cl45_write(cb, phy,
8633 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_SFP_TWO_WIRE_BYTE_CNT,
8634 			 (byte_cnt | (dev_addr << 8)));
8635 
8636 	/* Set the read command address */
8637 	elink_cl45_write(cb, phy,
8638 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_SFP_TWO_WIRE_MEM_ADDR,
8639 			 addr);
8640 
8641 	/* Activate read command */
8642 	elink_cl45_write(cb, phy,
8643 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_SFP_TWO_WIRE_CTRL,
8644 			 0x2c0f);
8645 
8646 	/* Wait up to 500us for command complete status */
8647 	for (i = 0; i < 100; i++) {
8648 		elink_cl45_read(cb, phy,
8649 				MDIO_PMA_DEVAD,
8650 				MDIO_PMA_REG_SFP_TWO_WIRE_CTRL, &val);
8651 		if ((val & MDIO_PMA_REG_SFP_TWO_WIRE_CTRL_STATUS_MASK) ==
8652 		    MDIO_PMA_REG_SFP_TWO_WIRE_STATUS_COMPLETE)
8653 			break;
8654 		USLEEP(cb, 5);
8655 	}
8656 
8657 	if ((val & MDIO_PMA_REG_SFP_TWO_WIRE_CTRL_STATUS_MASK) !=
8658 		    MDIO_PMA_REG_SFP_TWO_WIRE_STATUS_COMPLETE) {
8659 		ELINK_DEBUG_P1(cb,
8660 			 "Got bad status 0x%x when reading from SFP+ EEPROM\n",
8661 			 (val & MDIO_PMA_REG_SFP_TWO_WIRE_CTRL_STATUS_MASK));
8662 		return ELINK_STATUS_ERROR;
8663 	}
8664 
8665 	/* Read the buffer */
8666 	for (i = 0; i < byte_cnt; i++) {
8667 		elink_cl45_read(cb, phy,
8668 				MDIO_PMA_DEVAD,
8669 				MDIO_PMA_REG_8726_TWO_WIRE_DATA_BUF + i, &val);
8670 		o_buf[i] = (u8)(val & MDIO_PMA_REG_8726_TWO_WIRE_DATA_MASK);
8671 	}
8672 
8673 	for (i = 0; i < 100; i++) {
8674 		elink_cl45_read(cb, phy,
8675 				MDIO_PMA_DEVAD,
8676 				MDIO_PMA_REG_SFP_TWO_WIRE_CTRL, &val);
8677 		if ((val & MDIO_PMA_REG_SFP_TWO_WIRE_CTRL_STATUS_MASK) ==
8678 		    MDIO_PMA_REG_SFP_TWO_WIRE_STATUS_IDLE)
8679 			return ELINK_STATUS_OK;
8680 		MSLEEP(cb, 1);
8681 	}
8682 #endif // EXCLUDE_BCM87x6
8683 	return ELINK_STATUS_ERROR;
8684 }
8685 
8686 #ifndef EXCLUDE_WARPCORE
8687 #ifndef EXCLUDE_NON_COMMON_INIT
elink_warpcore_power_module(struct elink_params * params,u8 power)8688 static void elink_warpcore_power_module(struct elink_params *params,
8689 					u8 power)
8690 {
8691 	u32 pin_cfg;
8692 	struct elink_dev *cb = params->cb;
8693 
8694 	pin_cfg = (REG_RD(cb, params->shmem_base +
8695 			  OFFSETOF(struct shmem_region,
8696 			dev_info.port_hw_config[params->port].e3_sfp_ctrl)) &
8697 			PORT_HW_CFG_E3_PWR_DIS_MASK) >>
8698 			PORT_HW_CFG_E3_PWR_DIS_SHIFT;
8699 
8700 	if (pin_cfg == PIN_CFG_NA)
8701 		return;
8702 	ELINK_DEBUG_P2(cb, "Setting SFP+ module power to %d using pin cfg %d\n",
8703 		       power, pin_cfg);
8704 	/* Low ==> corresponding SFP+ module is powered
8705 	 * high ==> the SFP+ module is powered down
8706 	 */
8707 	elink_set_cfg_pin(cb, pin_cfg, power ^ 1);
8708 }
8709 #endif
elink_warpcore_read_sfp_module_eeprom(struct elink_phy * phy,struct elink_params * params,u8 dev_addr,u16 addr,u8 byte_cnt,u8 * o_buf,u8 is_init)8710 static elink_status_t elink_warpcore_read_sfp_module_eeprom(struct elink_phy *phy,
8711 						 struct elink_params *params,
8712 						 u8 dev_addr,
8713 						 u16 addr, u8 byte_cnt,
8714 						 u8 *o_buf, u8 is_init)
8715 {
8716 	elink_status_t rc = ELINK_STATUS_OK;
8717 	u8 i, j = 0, cnt = 0;
8718 	u32 data_array[4];
8719 	u16 addr32;
8720 	struct elink_dev *cb = params->cb;
8721 
8722 	if (byte_cnt > ELINK_SFP_EEPROM_PAGE_SIZE) {
8723 		ELINK_DEBUG_P0(cb,
8724 		   "Reading from eeprom is limited to 16 bytes\n");
8725 		return ELINK_STATUS_ERROR;
8726 	}
8727 
8728 	/* 4 byte aligned address */
8729 	addr32 = addr & (~0x3);
8730 	do {
8731 		if ((!is_init) && (cnt == I2C_WA_PWR_ITER)) {
8732 			elink_warpcore_power_module(params, 0);
8733 			/* Note that 100us are not enough here */
8734 			MSLEEP(cb, 1);
8735 			elink_warpcore_power_module(params, 1);
8736 		}
8737 		rc = elink_bsc_read(params, cb, dev_addr, addr32, 0, byte_cnt,
8738 				    data_array);
8739 	} while ((rc != ELINK_STATUS_OK) && (++cnt < I2C_WA_RETRY_CNT));
8740 
8741 	if (rc == ELINK_STATUS_OK) {
8742 		for (i = (addr - addr32); i < byte_cnt + (addr - addr32); i++) {
8743 			o_buf[j] = *((u8 *)data_array + i);
8744 			j++;
8745 		}
8746 	}
8747 
8748 	return rc;
8749 }
8750 #endif /* EXCLUDE_WARPCORE */
8751 
8752 #ifndef EXCLUDE_BCM8727_BCM8073
elink_8727_read_sfp_module_eeprom(struct elink_phy * phy,struct elink_params * params,u8 dev_addr,u16 addr,u8 byte_cnt,u8 * o_buf,u8 is_init)8753 static elink_status_t elink_8727_read_sfp_module_eeprom(struct elink_phy *phy,
8754 					     struct elink_params *params,
8755 					     u8 dev_addr, u16 addr, u8 byte_cnt,
8756 					     u8 *o_buf, u8 is_init)
8757 {
8758 	struct elink_dev *cb = params->cb;
8759 	u16 val, i;
8760 
8761 	if (byte_cnt > ELINK_SFP_EEPROM_PAGE_SIZE) {
8762 		ELINK_DEBUG_P0(cb,
8763 		   "Reading from eeprom is limited to 0xf\n");
8764 		return ELINK_STATUS_ERROR;
8765 	}
8766 
8767 	/* Set 2-wire transfer rate of SFP+ module EEPROM
8768 	 * to 100Khz since some DACs(direct attached cables) do
8769 	 * not work at 400Khz.
8770 	 */
8771 	elink_cl45_write(cb, phy,
8772 			 MDIO_PMA_DEVAD,
8773 			 MDIO_PMA_REG_8727_TWO_WIRE_SLAVE_ADDR,
8774 			 ((dev_addr << 8) | 1));
8775 
8776 	/* Need to read from 1.8000 to clear it */
8777 	elink_cl45_read(cb, phy,
8778 			MDIO_PMA_DEVAD,
8779 			MDIO_PMA_REG_SFP_TWO_WIRE_CTRL,
8780 			&val);
8781 
8782 	/* Set the read command byte count */
8783 	elink_cl45_write(cb, phy,
8784 			 MDIO_PMA_DEVAD,
8785 			 MDIO_PMA_REG_SFP_TWO_WIRE_BYTE_CNT,
8786 			 ((byte_cnt < 2) ? 2 : byte_cnt));
8787 
8788 	/* Set the read command address */
8789 	elink_cl45_write(cb, phy,
8790 			 MDIO_PMA_DEVAD,
8791 			 MDIO_PMA_REG_SFP_TWO_WIRE_MEM_ADDR,
8792 			 addr);
8793 	/* Set the destination address */
8794 	elink_cl45_write(cb, phy,
8795 			 MDIO_PMA_DEVAD,
8796 			 0x8004,
8797 			 MDIO_PMA_REG_8727_TWO_WIRE_DATA_BUF);
8798 
8799 	/* Activate read command */
8800 	elink_cl45_write(cb, phy,
8801 			 MDIO_PMA_DEVAD,
8802 			 MDIO_PMA_REG_SFP_TWO_WIRE_CTRL,
8803 			 0x8002);
8804 	/* Wait appropriate time for two-wire command to finish before
8805 	 * polling the status register
8806 	 */
8807 	MSLEEP(cb, 1);
8808 
8809 	/* Wait up to 500us for command complete status */
8810 	for (i = 0; i < 100; i++) {
8811 		elink_cl45_read(cb, phy,
8812 				MDIO_PMA_DEVAD,
8813 				MDIO_PMA_REG_SFP_TWO_WIRE_CTRL, &val);
8814 		if ((val & MDIO_PMA_REG_SFP_TWO_WIRE_CTRL_STATUS_MASK) ==
8815 		    MDIO_PMA_REG_SFP_TWO_WIRE_STATUS_COMPLETE)
8816 			break;
8817 		USLEEP(cb, 5);
8818 	}
8819 
8820 	if ((val & MDIO_PMA_REG_SFP_TWO_WIRE_CTRL_STATUS_MASK) !=
8821 		    MDIO_PMA_REG_SFP_TWO_WIRE_STATUS_COMPLETE) {
8822 		ELINK_DEBUG_P1(cb,
8823 			 "Got bad status 0x%x when reading from SFP+ EEPROM\n",
8824 			 (val & MDIO_PMA_REG_SFP_TWO_WIRE_CTRL_STATUS_MASK));
8825 		return ELINK_STATUS_TIMEOUT;
8826 	}
8827 
8828 	/* Read the buffer */
8829 	for (i = 0; i < byte_cnt; i++) {
8830 		elink_cl45_read(cb, phy,
8831 				MDIO_PMA_DEVAD,
8832 				MDIO_PMA_REG_8727_TWO_WIRE_DATA_BUF + i, &val);
8833 		o_buf[i] = (u8)(val & MDIO_PMA_REG_8727_TWO_WIRE_DATA_MASK);
8834 	}
8835 
8836 	for (i = 0; i < 100; i++) {
8837 		elink_cl45_read(cb, phy,
8838 				MDIO_PMA_DEVAD,
8839 				MDIO_PMA_REG_SFP_TWO_WIRE_CTRL, &val);
8840 		if ((val & MDIO_PMA_REG_SFP_TWO_WIRE_CTRL_STATUS_MASK) ==
8841 		    MDIO_PMA_REG_SFP_TWO_WIRE_STATUS_IDLE)
8842 			return ELINK_STATUS_OK;
8843 		MSLEEP(cb, 1);
8844 	}
8845 
8846 	return ELINK_STATUS_ERROR;
8847 }
8848 #endif /* EXCLUDE_BCM8727_BCM8073 */
8849 #endif /* #ifndef EXCLUDE_NON_COMMON_INIT */
8850 #endif /* ELINK_EMUL_ONLY */
8851 #ifndef EXCLUDE_FROM_BNX2X
elink_validate_cc_dmi(u8 * sfp_a2_buf)8852 elink_status_t elink_validate_cc_dmi(u8 *sfp_a2_buf)
8853 {
8854 	u8 i, checksum = 0;
8855 	for (i = 0; i < ELINK_SFP_EEPROM_A2_CHECKSUM_RANGE; i++)
8856 		checksum += sfp_a2_buf[i];
8857 	if (checksum == sfp_a2_buf[ELINK_SFP_EEPROM_A2_CC_DMI_ADDR])
8858 		return ELINK_STATUS_OK;
8859 
8860 	return ELINK_STATUS_ERROR;
8861 }
8862 #endif
8863 #ifndef EXCLUDE_NON_COMMON_INIT
elink_read_sfp_module_eeprom(struct elink_phy * phy,struct elink_params * params,u8 dev_addr,u16 addr,u16 byte_cnt,u8 * o_buf)8864 elink_status_t elink_read_sfp_module_eeprom(struct elink_phy *phy,
8865 				 struct elink_params *params, u8 dev_addr,
8866 				 u16 addr, u16 byte_cnt, u8 *o_buf)
8867 {
8868 	elink_status_t rc = 0;
8869 #ifdef ELINK_DEBUG
8870 	struct elink_dev *cb = params->cb;
8871 #endif
8872 	u8 xfer_size;
8873 	u8 *user_data = o_buf;
8874 	read_sfp_module_eeprom_func_p read_func;
8875 	if ((dev_addr != 0xa0) && (dev_addr != 0xa2)) {
8876 		ELINK_DEBUG_P1(cb, "invalid dev_addr 0x%x\n", dev_addr);
8877 		return ELINK_STATUS_ERROR;
8878 	}
8879 
8880 #ifndef ELINK_EMUL_ONLY
8881 	switch (phy->type) {
8882 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8726:
8883 		read_func = elink_8726_read_sfp_module_eeprom;
8884 		break;
8885 #ifndef EXCLUDE_BCM8727_BCM8073
8886 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8727:
8887 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8722:
8888 		read_func = elink_8727_read_sfp_module_eeprom;
8889 		break;
8890 #endif
8891 #ifndef EXCLUDE_WARPCORE
8892 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT:
8893 		read_func = elink_warpcore_read_sfp_module_eeprom;
8894 		break;
8895 #endif /* EXCLUDE_WARPCORE */
8896 	default:
8897 		return ELINK_OP_NOT_SUPPORTED;
8898 	}
8899 
8900 	while (!rc && (byte_cnt > 0)) {
8901 		xfer_size = (byte_cnt > ELINK_SFP_EEPROM_PAGE_SIZE) ?
8902 			ELINK_SFP_EEPROM_PAGE_SIZE : byte_cnt;
8903 		rc = read_func(phy, params, dev_addr, addr, xfer_size,
8904 			       user_data, 0);
8905 		byte_cnt -= xfer_size;
8906 		user_data += xfer_size;
8907 		addr += xfer_size;
8908 	}
8909 #endif /* ELINK_EMUL_ONLY */
8910 	return rc;
8911 }
8912 #endif // EXCLUDE_NON_COMMON_INIT
8913 #ifndef ELINK_EMUL_ONLY
8914 
8915 #ifndef EXCLUDE_NON_COMMON_INIT
elink_set_sfp_media(struct elink_phy * phy,const u8 val[ELINK_SFP_EEPROM_FC_TX_TECH_ADDR+1])8916 static void elink_set_sfp_media(struct elink_phy *phy,
8917     const u8 val[ELINK_SFP_EEPROM_FC_TX_TECH_ADDR + 1])
8918 {
8919 	switch (val[ELINK_SFP_EEPROM_CON_TYPE_ADDR]) {
8920 	case ELINK_SFP_EEPROM_CON_TYPE_VAL_COPPER: {
8921 		u8 copper_module_type;
8922 		/*
8923 		 * Check if it's active cable (includes SFP+ module)
8924 		 * or a passive cable.
8925 		 */
8926 		copper_module_type = val[ELINK_SFP_EEPROM_FC_TX_TECH_ADDR];
8927 		if (copper_module_type &
8928 		    ELINK_SFP_EEPROM_FC_TX_TECH_BITMASK_COPPER_ACTIVE) {
8929 			phy->sfp_media = ELINK_ETH_SFP_ACC;
8930 		} else {
8931 			if (copper_module_type &
8932 			    ELINK_SFP_EEPROM_FC_TX_TECH_BITMASK_COPPER_PASSIVE) {
8933 				phy->sfp_media = ELINK_ETH_SFP_DAC;
8934 			}
8935 		}
8936 		break;
8937 	}
8938 	case ELINK_SFP_EEPROM_CON_TYPE_VAL_UNKNOWN:
8939 	case ELINK_SFP_EEPROM_CON_TYPE_VAL_LC:
8940 	case ELINK_SFP_EEPROM_CON_TYPE_VAL_RJ45:
8941 		/*
8942 		 * Some SFP+ modules may support 1 Gbit and 10 Gbit operation.
8943 		 * We assign something a 1 Gbit designation if it does not
8944 		 * support any 10 Gbit modes.
8945 		 */
8946 		if ((val[ELINK_SFP_EEPROM_10G_COMP_CODE_ADDR] &
8947 		     (ELINK_SFP_EEPROM_10G_COMP_CODE_SR_MASK |
8948 		      ELINK_SFP_EEPROM_10G_COMP_CODE_LR_MASK |
8949 		      ELINK_SFP_EEPROM_10G_COMP_CODE_LRM_MASK |
8950 		      ELINK_SFP_EEPROM_10G_COMP_CODE_ER_MASK)) == 0) {
8951 			if (val[ELINK_SFP_EEPROM_1G_COMP_CODE_ADDR] &
8952 			    ELINK_SFP_EEPROM_1G_COMP_CODE_BASE_T) {
8953 				phy->sfp_media = ELINK_ETH_SFP_1GBASE_T;
8954 			} else if (val[ELINK_SFP_EEPROM_1G_COMP_CODE_ADDR] &
8955 			    ELINK_SFP_EEPROM_1G_COMP_CODE_SX) {
8956 				phy->sfp_media = ELINK_ETH_SFP_1GBASE_SX;
8957 			} else if (val[ELINK_SFP_EEPROM_1G_COMP_CODE_ADDR] &
8958 			    ELINK_SFP_EEPROM_1G_COMP_CODE_LX) {
8959 				phy->sfp_media = ELINK_ETH_SFP_1GBASE_LX;
8960 			} else if (val[ELINK_SFP_EEPROM_1G_COMP_CODE_ADDR] &
8961 			    ELINK_SFP_EEPROM_1G_COMP_CODE_CX) {
8962 				phy->sfp_media = ELINK_ETH_SFP_1GBASE_CX;
8963 			}
8964 		} else {
8965 			if (val[ELINK_SFP_EEPROM_10G_COMP_CODE_ADDR] &
8966 			     ELINK_SFP_EEPROM_10G_COMP_CODE_SR_MASK) {
8967 				phy->sfp_media = ELINK_ETH_SFP_10GBASE_SR;
8968 			} else if (val[ELINK_SFP_EEPROM_10G_COMP_CODE_ADDR] &
8969 			     ELINK_SFP_EEPROM_10G_COMP_CODE_LR_MASK) {
8970 				phy->sfp_media = ELINK_ETH_SFP_10GBASE_LR;
8971 			} else if (val[ELINK_SFP_EEPROM_10G_COMP_CODE_ADDR] &
8972 			     ELINK_SFP_EEPROM_10G_COMP_CODE_LRM_MASK) {
8973 				phy->sfp_media = ELINK_ETH_SFP_10GBASE_LRM;
8974 			} else if (val[ELINK_SFP_EEPROM_10G_COMP_CODE_ADDR] &
8975 			     ELINK_SFP_EEPROM_10G_COMP_CODE_ER_MASK) {
8976 				phy->sfp_media = ELINK_ETH_SFP_10GBASE_ER;
8977 			}
8978 		}
8979 		break;
8980 	default:
8981 		break;
8982 	}
8983 }
8984 
8985 #if !defined(EXCLUDE_BCM87x6) || !defined(EXCLUDE_BCM8727_BCM8073) || !defined(EXCLUDE_WARPCORE)
elink_get_edc_mode(struct elink_phy * phy,struct elink_params * params,u16 * edc_mode)8986 static elink_status_t elink_get_edc_mode(struct elink_phy *phy,
8987 			      struct elink_params *params,
8988 			      u16 *edc_mode)
8989 {
8990 	struct elink_dev *cb = params->cb;
8991 	u32 sync_offset = 0, phy_idx, media_types;
8992 	u8 val[ELINK_SFP_EEPROM_FC_TX_TECH_ADDR + 1], check_limiting_mode = 0;
8993 	*edc_mode = ELINK_EDC_MODE_LIMITING;
8994 	phy->media_type = ELINK_ETH_PHY_UNSPECIFIED;
8995 	phy->sfp_media = ELINK_ETH_SFP_UNKNOWN;
8996 	/* First check for copper cable */
8997 	if (elink_read_sfp_module_eeprom(phy,
8998 					 params,
8999 					 ELINK_I2C_DEV_ADDR_A0,
9000 					 0,
9001 					 ELINK_SFP_EEPROM_FC_TX_TECH_ADDR + 1,
9002 					 (u8 *)val) != 0) {
9003 		ELINK_DEBUG_P0(cb, "Failed to read from SFP+ module EEPROM\n");
9004 		return ELINK_STATUS_ERROR;
9005 	}
9006 #ifndef EXCLUDE_WARPCORE
9007 	params->link_attr_sync &= ~LINK_SFP_EEPROM_COMP_CODE_MASK;
9008 	params->link_attr_sync |= val[ELINK_SFP_EEPROM_10G_COMP_CODE_ADDR] <<
9009 		LINK_SFP_EEPROM_COMP_CODE_SHIFT;
9010 	elink_update_link_attr(params, params->link_attr_sync);
9011 #endif
9012 	switch (val[ELINK_SFP_EEPROM_CON_TYPE_ADDR]) {
9013 	case ELINK_SFP_EEPROM_CON_TYPE_VAL_COPPER:
9014 	{
9015 		u8 copper_module_type;
9016 		phy->media_type = ELINK_ETH_PHY_DA_TWINAX;
9017 		/* Check if it's active cable (includes SFP+ module)
9018 		 * or a passive cable.
9019 		 */
9020 		copper_module_type = val[ELINK_SFP_EEPROM_FC_TX_TECH_ADDR];
9021 		if (copper_module_type &
9022 		    ELINK_SFP_EEPROM_FC_TX_TECH_BITMASK_COPPER_ACTIVE) {
9023 			ELINK_DEBUG_P0(cb, "Active Copper cable detected\n");
9024 			if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT)
9025 				*edc_mode = ELINK_EDC_MODE_ACTIVE_DAC;
9026 			else
9027 				check_limiting_mode = 1;
9028 		} else {
9029 			*edc_mode = ELINK_EDC_MODE_PASSIVE_DAC;
9030 			/* Even in case PASSIVE_DAC indication is not set,
9031 			 * treat it as a passive DAC cable, since some cables
9032 			 * don't have this indication.
9033 			 */
9034 			if (copper_module_type &
9035 			    ELINK_SFP_EEPROM_FC_TX_TECH_BITMASK_COPPER_PASSIVE) {
9036 				ELINK_DEBUG_P0(cb,
9037 					       "Passive Copper cable detected\n");
9038 			} else {
9039 				ELINK_DEBUG_P0(cb,
9040 					       "Unknown copper-cable-type\n");
9041 			}
9042 		}
9043 		break;
9044 	}
9045 	case ELINK_SFP_EEPROM_CON_TYPE_VAL_UNKNOWN:
9046 	case ELINK_SFP_EEPROM_CON_TYPE_VAL_LC:
9047 	case ELINK_SFP_EEPROM_CON_TYPE_VAL_RJ45:
9048 		check_limiting_mode = 1;
9049 		/*
9050 		 * Some SFP+ modules may support 1 Gbit and 10 Gbit operation.
9051 		 * We assign something a 1 Gbit designation if it does not
9052 		 * support any 10 Gbit modes.
9053 		 */
9054 		if ((val[ELINK_SFP_EEPROM_10G_COMP_CODE_ADDR] &
9055 		     (ELINK_SFP_EEPROM_10G_COMP_CODE_SR_MASK |
9056 		      ELINK_SFP_EEPROM_10G_COMP_CODE_LR_MASK |
9057 		      ELINK_SFP_EEPROM_10G_COMP_CODE_LRM_MASK |
9058 		      ELINK_SFP_EEPROM_10G_COMP_CODE_ER_MASK)) == 0) {
9059 			ELINK_DEBUG_P0(cb, "1G SFP module detected\n");
9060 			phy->media_type = ELINK_ETH_PHY_SFP_1G_FIBER;
9061 			if (phy->req_line_speed != ELINK_SPEED_1000) {
9062 #ifndef ELINK_AUX_POWER
9063 				u8 gport = params->port;
9064 #endif
9065 				phy->req_line_speed = ELINK_SPEED_1000;
9066 #ifndef ELINK_AUX_POWER
9067 				if (!CHIP_IS_E1X(params->chip_id)) {
9068 					gport = PATH_ID(cb) +
9069 					(params->port << 1);
9070 				}
9071 				elink_cb_event_log(cb, ELINK_LOG_ID_NON_10G_MODULE, gport); //"Warning: Link speed was forced to 1000Mbps."
9072 				     // " Current SFP module in port %d is not"
9073 				     // " compliant with 10G Ethernet\n",
9074 #endif
9075 			}
9076 
9077 			if (val[ELINK_SFP_EEPROM_1G_COMP_CODE_ADDR] &
9078 			    ELINK_SFP_EEPROM_1G_COMP_CODE_BASE_T) {
9079 				/* Some 1G-baseT modules will not link up,
9080 				 * unless TX_EN is toggled with long delay in
9081 				 * between.
9082 				 */
9083 				elink_sfp_set_transmitter(params, phy, 0);
9084 				MSLEEP(cb, 40);
9085 				elink_sfp_set_transmitter(params, phy, 1);
9086 			}
9087 		} else {
9088 			int idx, cfg_idx = 0;
9089 			ELINK_DEBUG_P0(cb, "10G Optic module detected\n");
9090 			for (idx = ELINK_INT_PHY; idx < ELINK_MAX_PHYS; idx++) {
9091 				if (params->phy[idx].type == phy->type) {
9092 					cfg_idx = ELINK_LINK_CONFIG_IDX(idx);
9093 					break;
9094 				}
9095 			}
9096 			phy->media_type = ELINK_ETH_PHY_SFPP_10G_FIBER;
9097 			phy->req_line_speed = params->req_line_speed[cfg_idx];
9098 		}
9099 		break;
9100 	default:
9101 		ELINK_DEBUG_P1(cb, "Unable to determine module type 0x%x !!!\n",
9102 			 val[ELINK_SFP_EEPROM_CON_TYPE_ADDR]);
9103 		return ELINK_STATUS_ERROR;
9104 	}
9105 	elink_set_sfp_media(phy, val);
9106 	sync_offset = params->shmem_base +
9107 		OFFSETOF(struct shmem_region,
9108 			 dev_info.port_hw_config[params->port].media_type);
9109 	media_types = REG_RD(cb, sync_offset);
9110 	/* Update media type for non-PMF sync */
9111 	for (phy_idx = ELINK_INT_PHY; phy_idx < ELINK_MAX_PHYS; phy_idx++) {
9112 		if (&(params->phy[phy_idx]) == phy) {
9113 			media_types &= ~(PORT_HW_CFG_MEDIA_TYPE_PHY0_MASK <<
9114 				(PORT_HW_CFG_MEDIA_TYPE_PHY1_SHIFT * phy_idx));
9115 			media_types |= ((phy->media_type &
9116 					PORT_HW_CFG_MEDIA_TYPE_PHY0_MASK) <<
9117 				(PORT_HW_CFG_MEDIA_TYPE_PHY1_SHIFT * phy_idx));
9118 			break;
9119 		}
9120 	}
9121 	REG_WR(cb, sync_offset, media_types);
9122 	if (check_limiting_mode) {
9123 		u8 options[ELINK_SFP_EEPROM_OPTIONS_SIZE];
9124 		if (elink_read_sfp_module_eeprom(phy,
9125 						 params,
9126 						 ELINK_I2C_DEV_ADDR_A0,
9127 						 ELINK_SFP_EEPROM_OPTIONS_ADDR,
9128 						 ELINK_SFP_EEPROM_OPTIONS_SIZE,
9129 						 options) != 0) {
9130 			ELINK_DEBUG_P0(cb,
9131 			   "Failed to read Option field from module EEPROM\n");
9132 			return ELINK_STATUS_ERROR;
9133 		}
9134 		if ((options[0] & ELINK_SFP_EEPROM_OPTIONS_LINEAR_RX_OUT_MASK))
9135 			*edc_mode = ELINK_EDC_MODE_LINEAR;
9136 		else
9137 			*edc_mode = ELINK_EDC_MODE_LIMITING;
9138 	}
9139 	ELINK_DEBUG_P1(cb, "EDC mode is set to 0x%x\n", *edc_mode);
9140 	return ELINK_STATUS_OK;
9141 }
9142 #ifdef ELINK_ENHANCEMENTS
9143 
9144 /*
9145  * This function determines the type of media that is present in the SFP module
9146  * for us to cache and use as part of the illumos MAC media information. This is
9147  * done because elink_get_edc_mode() isn't aways actually called.
9148  */
elink_determine_sfp_media(struct elink_phy * phy,struct elink_params * params)9149 static elink_status_t elink_determine_sfp_media(struct elink_phy *phy,
9150     struct elink_params *params)
9151 {
9152 	struct elink_dev *cb = params->cb;
9153 	u8 val[ELINK_SFP_EEPROM_FC_TX_TECH_ADDR + 1];
9154 
9155 	phy->sfp_media = ELINK_ETH_SFP_UNKNOWN;
9156 	if (elink_read_sfp_module_eeprom(phy, params, ELINK_I2C_DEV_ADDR_A0,
9157 	    0, ELINK_SFP_EEPROM_FC_TX_TECH_ADDR + 1, (u8 *)val) != 0) {
9158 		ELINK_DEBUG_P0(cb, "Failed to read from SFP+ module EEPROM\n");
9159 		return ELINK_STATUS_ERROR;
9160 	}
9161 
9162 	elink_set_sfp_media(phy, val);
9163 
9164 	return ELINK_STATUS_OK;
9165 }
9166 
9167 /* This function read the relevant field from the module (SFP+), and verify it
9168  * is compliant with this board
9169  */
elink_verify_sfp_module(struct elink_phy * phy,struct elink_params * params)9170 static elink_status_t elink_verify_sfp_module(struct elink_phy *phy,
9171 				   struct elink_params *params)
9172 {
9173 	struct elink_dev *cb = params->cb;
9174 	u32 val, cmd;
9175 	u32 fw_resp, fw_cmd_param;
9176 	char vendor_name[ELINK_SFP_EEPROM_VENDOR_NAME_SIZE+1];
9177 	char vendor_pn[ELINK_SFP_EEPROM_PART_NO_SIZE+1];
9178 	phy->flags &= ~ELINK_FLAGS_SFP_NOT_APPROVED;
9179 	val = REG_RD(cb, params->shmem_base +
9180 			 OFFSETOF(struct shmem_region, dev_info.
9181 				  port_feature_config[params->port].config));
9182 	if ((val & PORT_FEAT_CFG_OPT_MDL_ENFRCMNT_MASK) ==
9183 	    PORT_FEAT_CFG_OPT_MDL_ENFRCMNT_NO_ENFORCEMENT) {
9184 		ELINK_DEBUG_P0(cb, "NOT enforcing module verification\n");
9185 		return ELINK_STATUS_OK;
9186 	}
9187 
9188 	if (params->feature_config_flags &
9189 	    ELINK_FEATURE_CONFIG_BC_SUPPORTS_DUAL_PHY_OPT_MDL_VRFY) {
9190 		/* Use specific phy request */
9191 		cmd = DRV_MSG_CODE_VRFY_SPECIFIC_PHY_OPT_MDL;
9192 	} else if (params->feature_config_flags &
9193 		   ELINK_FEATURE_CONFIG_BC_SUPPORTS_OPT_MDL_VRFY) {
9194 		/* Use first phy request only in case of non-dual media*/
9195 		if (ELINK_DUAL_MEDIA(params)) {
9196 			ELINK_DEBUG_P0(cb,
9197 			   "FW does not support OPT MDL verification\n");
9198 			return ELINK_STATUS_ERROR;
9199 		}
9200 		cmd = DRV_MSG_CODE_VRFY_FIRST_PHY_OPT_MDL;
9201 	} else {
9202 		/* No support in OPT MDL detection */
9203 		ELINK_DEBUG_P0(cb,
9204 		   "FW does not support OPT MDL verification\n");
9205 		return ELINK_STATUS_ERROR;
9206 	}
9207 
9208 	fw_cmd_param = ELINK_FW_PARAM_SET(phy->addr, phy->type, phy->mdio_ctrl);
9209 	fw_resp = elink_cb_fw_command(cb, cmd, fw_cmd_param);
9210 	if (fw_resp == FW_MSG_CODE_VRFY_OPT_MDL_SUCCESS) {
9211 		ELINK_DEBUG_P0(cb, "Approved module\n");
9212 		return ELINK_STATUS_OK;
9213 	}
9214 
9215 	/* Format the warning message */
9216 	if (elink_read_sfp_module_eeprom(phy,
9217 					 params,
9218 					 ELINK_I2C_DEV_ADDR_A0,
9219 					 ELINK_SFP_EEPROM_VENDOR_NAME_ADDR,
9220 					 ELINK_SFP_EEPROM_VENDOR_NAME_SIZE,
9221 					 (u8 *)vendor_name))
9222 		vendor_name[0] = '\0';
9223 	else
9224 		vendor_name[ELINK_SFP_EEPROM_VENDOR_NAME_SIZE] = '\0';
9225 	if (elink_read_sfp_module_eeprom(phy,
9226 					 params,
9227 					 ELINK_I2C_DEV_ADDR_A0,
9228 					 ELINK_SFP_EEPROM_PART_NO_ADDR,
9229 					 ELINK_SFP_EEPROM_PART_NO_SIZE,
9230 					 (u8 *)vendor_pn))
9231 		vendor_pn[0] = '\0';
9232 	else
9233 		vendor_pn[ELINK_SFP_EEPROM_PART_NO_SIZE] = '\0';
9234 
9235 	elink_cb_event_log(cb, ELINK_LOG_ID_UNQUAL_IO_MODULE, params->port, vendor_name, vendor_pn); // "Warning: Unqualified SFP+ module detected,"
9236 			     // " Port %d from %s part number %s\n",
9237 
9238 	if ((val & PORT_FEAT_CFG_OPT_MDL_ENFRCMNT_MASK) !=
9239 	    PORT_FEAT_CFG_OPT_MDL_ENFRCMNT_WARNING_MSG)
9240 		phy->flags |= ELINK_FLAGS_SFP_NOT_APPROVED;
9241 	return ELINK_STATUS_ERROR;
9242 }
9243 #endif /* ELINK_ENHANCEMENTS */
9244 
9245 #ifndef EXCLUDE_BCM8727_BCM8073
elink_wait_for_sfp_module_initialized(struct elink_phy * phy,struct elink_params * params)9246 static elink_status_t elink_wait_for_sfp_module_initialized(struct elink_phy *phy,
9247 						 struct elink_params *params)
9248 
9249 {
9250 	u8 val;
9251 	elink_status_t rc;
9252 	struct elink_dev *cb = params->cb;
9253 	u16 timeout;
9254 	/* Initialization time after hot-plug may take up to 300ms for
9255 	 * some phys type ( e.g. JDSU )
9256 	 */
9257 
9258 	for (timeout = 0; timeout < 60; timeout++) {
9259 #ifndef EXCLUDE_WARPCORE
9260 		if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT)
9261 			rc = elink_warpcore_read_sfp_module_eeprom(
9262 				phy, params, ELINK_I2C_DEV_ADDR_A0, 1, 1, &val,
9263 				1);
9264 		else
9265 #endif
9266 			rc = elink_read_sfp_module_eeprom(phy, params,
9267 							  ELINK_I2C_DEV_ADDR_A0,
9268 							  1, 1, &val);
9269 		if (rc == 0) {
9270 			ELINK_DEBUG_P1(cb,
9271 			   "SFP+ module initialization took %d ms\n",
9272 			   timeout * 5);
9273 			return ELINK_STATUS_OK;
9274 		}
9275 		MSLEEP(cb, 5);
9276 	}
9277 	rc = elink_read_sfp_module_eeprom(phy, params, ELINK_I2C_DEV_ADDR_A0,
9278 					  1, 1, &val);
9279 	return rc;
9280 }
9281 #endif  /* EXCLUDE_BCM8727_BCM8073 */
9282 #endif /* #if !defined(EXCLUDE_BCM87x6) || !defined(EXCLUDE_BCM8727_BCM8073) || !defined(EXCLUDE_WARPCORE) */
9283 
9284 #ifndef EXCLUDE_BCM8727_BCM8073
elink_8727_power_module(struct elink_dev * cb,struct elink_phy * phy,u8 is_power_up)9285 static void elink_8727_power_module(struct elink_dev *cb,
9286 				    struct elink_phy *phy,
9287 				    u8 is_power_up) {
9288 	/* Make sure GPIOs are not using for LED mode */
9289 	u16 val;
9290 	/* In the GPIO register, bit 4 is use to determine if the GPIOs are
9291 	 * operating as INPUT or as OUTPUT. Bit 1 is for input, and 0 for
9292 	 * output
9293 	 * Bits 0-1 determine the GPIOs value for OUTPUT in case bit 4 val is 0
9294 	 * Bits 8-9 determine the GPIOs value for INPUT in case bit 4 val is 1
9295 	 * where the 1st bit is the over-current(only input), and 2nd bit is
9296 	 * for power( only output )
9297 	 *
9298 	 * In case of NOC feature is disabled and power is up, set GPIO control
9299 	 *  as input to enable listening of over-current indication
9300 	 */
9301 	if (phy->flags & ELINK_FLAGS_NOC)
9302 		return;
9303 	if (is_power_up)
9304 		val = (1<<4);
9305 	else
9306 		/* Set GPIO control to OUTPUT, and set the power bit
9307 		 * to according to the is_power_up
9308 		 */
9309 		val = (1<<1);
9310 
9311 	elink_cl45_write(cb, phy,
9312 			 MDIO_PMA_DEVAD,
9313 			 MDIO_PMA_REG_8727_GPIO_CTRL,
9314 			 val);
9315 }
9316 #endif /* EXCLUDE_BCM8727_BCM8073 */
9317 
9318 #ifndef EXCLUDE_BCM87x6
elink_8726_set_limiting_mode(struct elink_dev * cb,struct elink_phy * phy,u16 edc_mode)9319 static elink_status_t elink_8726_set_limiting_mode(struct elink_dev *cb,
9320 					struct elink_phy *phy,
9321 					u16 edc_mode)
9322 {
9323 	u16 cur_limiting_mode;
9324 
9325 	elink_cl45_read(cb, phy,
9326 			MDIO_PMA_DEVAD,
9327 			MDIO_PMA_REG_ROM_VER2,
9328 			&cur_limiting_mode);
9329 	ELINK_DEBUG_P1(cb, "Current Limiting mode is 0x%x\n",
9330 		 cur_limiting_mode);
9331 
9332 	if (edc_mode == ELINK_EDC_MODE_LIMITING) {
9333 		ELINK_DEBUG_P0(cb, "Setting LIMITING MODE\n");
9334 		elink_cl45_write(cb, phy,
9335 				 MDIO_PMA_DEVAD,
9336 				 MDIO_PMA_REG_ROM_VER2,
9337 				 ELINK_EDC_MODE_LIMITING);
9338 	} else { /* LRM mode ( default )*/
9339 
9340 		ELINK_DEBUG_P0(cb, "Setting LRM MODE\n");
9341 
9342 		/* Changing to LRM mode takes quite few seconds. So do it only
9343 		 * if current mode is limiting (default is LRM)
9344 		 */
9345 		if (cur_limiting_mode != ELINK_EDC_MODE_LIMITING)
9346 			return ELINK_STATUS_OK;
9347 
9348 		elink_cl45_write(cb, phy,
9349 				 MDIO_PMA_DEVAD,
9350 				 MDIO_PMA_REG_LRM_MODE,
9351 				 0);
9352 		elink_cl45_write(cb, phy,
9353 				 MDIO_PMA_DEVAD,
9354 				 MDIO_PMA_REG_ROM_VER2,
9355 				 0x128);
9356 		elink_cl45_write(cb, phy,
9357 				 MDIO_PMA_DEVAD,
9358 				 MDIO_PMA_REG_MISC_CTRL0,
9359 				 0x4008);
9360 		elink_cl45_write(cb, phy,
9361 				 MDIO_PMA_DEVAD,
9362 				 MDIO_PMA_REG_LRM_MODE,
9363 				 0xaaaa);
9364 	}
9365 	return ELINK_STATUS_OK;
9366 }
9367 #endif /* #ifndef EXCLUDE_BCM87x6 */
9368 
9369 #ifndef EXCLUDE_BCM8727_BCM8073
elink_8727_set_limiting_mode(struct elink_dev * cb,struct elink_phy * phy,u16 edc_mode)9370 static elink_status_t elink_8727_set_limiting_mode(struct elink_dev *cb,
9371 					struct elink_phy *phy,
9372 					u16 edc_mode)
9373 {
9374 	u16 phy_identifier;
9375 	u16 rom_ver2_val;
9376 	elink_cl45_read(cb, phy,
9377 			MDIO_PMA_DEVAD,
9378 			MDIO_PMA_REG_PHY_IDENTIFIER,
9379 			&phy_identifier);
9380 
9381 	elink_cl45_write(cb, phy,
9382 			 MDIO_PMA_DEVAD,
9383 			 MDIO_PMA_REG_PHY_IDENTIFIER,
9384 			 (phy_identifier & ~(1<<9)));
9385 
9386 	elink_cl45_read(cb, phy,
9387 			MDIO_PMA_DEVAD,
9388 			MDIO_PMA_REG_ROM_VER2,
9389 			&rom_ver2_val);
9390 	/* Keep the MSB 8-bits, and set the LSB 8-bits with the edc_mode */
9391 	elink_cl45_write(cb, phy,
9392 			 MDIO_PMA_DEVAD,
9393 			 MDIO_PMA_REG_ROM_VER2,
9394 			 (rom_ver2_val & 0xff00) | (edc_mode & 0x00ff));
9395 
9396 	elink_cl45_write(cb, phy,
9397 			 MDIO_PMA_DEVAD,
9398 			 MDIO_PMA_REG_PHY_IDENTIFIER,
9399 			 (phy_identifier | (1<<9)));
9400 
9401 	return ELINK_STATUS_OK;
9402 }
9403 
elink_8727_specific_func(struct elink_phy * phy,struct elink_params * params,u32 action)9404 static void elink_8727_specific_func(struct elink_phy *phy,
9405 				     struct elink_params *params,
9406 				     u32 action)
9407 {
9408 	struct elink_dev *cb = params->cb;
9409 	u16 val;
9410 	switch (action) {
9411 	case ELINK_DISABLE_TX:
9412 		elink_sfp_set_transmitter(params, phy, 0);
9413 		break;
9414 	case ELINK_ENABLE_TX:
9415 		if (!(phy->flags & ELINK_FLAGS_SFP_NOT_APPROVED))
9416 			elink_sfp_set_transmitter(params, phy, 1);
9417 		break;
9418 	case ELINK_PHY_INIT:
9419 		elink_cl45_write(cb, phy,
9420 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXCTRL,
9421 				 (1<<2) | (1<<5));
9422 		elink_cl45_write(cb, phy,
9423 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_TXCTRL,
9424 				 0);
9425 		elink_cl45_write(cb, phy,
9426 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_CTRL, 0x0006);
9427 		/* Make MOD_ABS give interrupt on change */
9428 		elink_cl45_read(cb, phy, MDIO_PMA_DEVAD,
9429 				MDIO_PMA_REG_8727_PCS_OPT_CTRL,
9430 				&val);
9431 		val |= (1<<12);
9432 		if (phy->flags & ELINK_FLAGS_NOC)
9433 			val |= (3<<5);
9434 		/* Set 8727 GPIOs to input to allow reading from the 8727 GPIO0
9435 		 * status which reflect SFP+ module over-current
9436 		 */
9437 		if (!(phy->flags & ELINK_FLAGS_NOC))
9438 			val &= 0xff8f; /* Reset bits 4-6 */
9439 		elink_cl45_write(cb, phy,
9440 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_8727_PCS_OPT_CTRL,
9441 				 val);
9442 		break;
9443 	default:
9444 		ELINK_DEBUG_P1(cb, "Function 0x%x not supported by 8727\n",
9445 		   action);
9446 		return;
9447 	}
9448 }
9449 
9450 #ifdef ELINK_ENHANCEMENTS
elink_set_e1e2_module_fault_led(struct elink_params * params,u8 gpio_mode)9451 static void elink_set_e1e2_module_fault_led(struct elink_params *params,
9452 					   u8 gpio_mode)
9453 {
9454 	struct elink_dev *cb = params->cb;
9455 
9456 	u32 fault_led_gpio = REG_RD(cb, params->shmem_base +
9457 			    OFFSETOF(struct shmem_region,
9458 			dev_info.port_hw_config[params->port].sfp_ctrl)) &
9459 		PORT_HW_CFG_FAULT_MODULE_LED_MASK;
9460 	switch (fault_led_gpio) {
9461 	case PORT_HW_CFG_FAULT_MODULE_LED_DISABLED:
9462 		return;
9463 	case PORT_HW_CFG_FAULT_MODULE_LED_GPIO0:
9464 	case PORT_HW_CFG_FAULT_MODULE_LED_GPIO1:
9465 	case PORT_HW_CFG_FAULT_MODULE_LED_GPIO2:
9466 	case PORT_HW_CFG_FAULT_MODULE_LED_GPIO3:
9467 	{
9468 		u8 gpio_port = elink_get_gpio_port(params);
9469 		u16 gpio_pin = fault_led_gpio -
9470 			PORT_HW_CFG_FAULT_MODULE_LED_GPIO0;
9471 		ELINK_DEBUG_P3(cb, "Set fault module-detected led "
9472 				   "pin %x port %x mode %x\n",
9473 			       gpio_pin, gpio_port, gpio_mode);
9474 		ELINK_SET_GPIO(cb, gpio_pin, gpio_mode, gpio_port);
9475 	}
9476 	break;
9477 	default:
9478 		ELINK_DEBUG_P1(cb, "Error: Invalid fault led mode 0x%x\n",
9479 			       fault_led_gpio);
9480 	}
9481 }
9482 #endif /* #ifdef ELINK_ENHANCEMENTS */
9483 #endif // EXCLUDE_BCM8727_BCM8073
9484 #endif // EXCLUDE_NON_COMMON_INIT
9485 
9486 #ifdef ELINK_ENHANCEMENTS
elink_set_e3_module_fault_led(struct elink_params * params,u8 gpio_mode)9487 static void elink_set_e3_module_fault_led(struct elink_params *params,
9488 					  u8 gpio_mode)
9489 {
9490 	u32 pin_cfg;
9491 	u8 port = params->port;
9492 	struct elink_dev *cb = params->cb;
9493 	pin_cfg = (REG_RD(cb, params->shmem_base +
9494 			 OFFSETOF(struct shmem_region,
9495 				  dev_info.port_hw_config[port].e3_sfp_ctrl)) &
9496 		PORT_HW_CFG_E3_FAULT_MDL_LED_MASK) >>
9497 		PORT_HW_CFG_E3_FAULT_MDL_LED_SHIFT;
9498 	ELINK_DEBUG_P2(cb, "Setting Fault LED to %d using pin cfg %d\n",
9499 		       gpio_mode, pin_cfg);
9500 	elink_set_cfg_pin(cb, pin_cfg, gpio_mode);
9501 }
9502 
elink_set_sfp_module_fault_led(struct elink_params * params,u8 gpio_mode)9503 static void elink_set_sfp_module_fault_led(struct elink_params *params,
9504 					   u8 gpio_mode)
9505 {
9506 	struct elink_dev *cb = params->cb;
9507 	ELINK_DEBUG_P1(cb, "Setting SFP+ module fault LED to %d\n", gpio_mode);
9508 	if (CHIP_IS_E3(params->chip_id)) {
9509 		/* Low ==> if SFP+ module is supported otherwise
9510 		 * High ==> if SFP+ module is not on the approved vendor list
9511 		 */
9512 		elink_set_e3_module_fault_led(params, gpio_mode);
9513 	} else
9514 		elink_set_e1e2_module_fault_led(params, gpio_mode);
9515 }
9516 #endif /* #ifdef ELINK_ENHANCEMENTS */
9517 
9518 #ifndef EXCLUDE_WARPCORE
9519 #ifndef EXCLUDE_NON_COMMON_INIT
elink_warpcore_hw_reset(struct elink_phy * phy,struct elink_params * params)9520 static void elink_warpcore_hw_reset(struct elink_phy *phy,
9521 				    struct elink_params *params)
9522 {
9523 	struct elink_dev *cb = params->cb;
9524 	elink_warpcore_power_module(params, 0);
9525 	/* Put Warpcore in low power mode */
9526 	REG_WR(cb, MISC_REG_WC0_RESET, 0x0c0e);
9527 
9528 	/* Put LCPLL in low power mode */
9529 	REG_WR(cb, MISC_REG_LCPLL_E40_PWRDWN, 1);
9530 	REG_WR(cb, MISC_REG_LCPLL_E40_RESETB_ANA, 0);
9531 	REG_WR(cb, MISC_REG_LCPLL_E40_RESETB_DIG, 0);
9532 }
9533 #endif // #ifndef EXCLUDE_NON_COMMON_INIT
9534 #endif // #ifndef EXCLUDE_WARPCORE
9535 
9536 #ifndef EXCLUDE_NON_COMMON_INIT
elink_power_sfp_module(struct elink_params * params,struct elink_phy * phy,u8 power)9537 static void elink_power_sfp_module(struct elink_params *params,
9538 				   struct elink_phy *phy,
9539 				   u8 power)
9540 {
9541 #ifdef ELINK_DEBUG
9542 	struct elink_dev *cb = params->cb;
9543 #endif /* ELINK_DEBUG */
9544 	ELINK_DEBUG_P1(cb, "Setting SFP+ power to %x\n", power);
9545 
9546 	switch (phy->type) {
9547 #ifndef EXCLUDE_BCM8727_BCM8073
9548 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8727:
9549 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8722:
9550 		elink_8727_power_module(params->cb, phy, power);
9551 		break;
9552 #endif // EXCLUDE_BCM8727_BCM8073
9553 #ifndef EXCLUDE_WARPCORE
9554 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT:
9555 		elink_warpcore_power_module(params, power);
9556 		break;
9557 #endif // EXCLUDE_WARPCORE
9558 	default:
9559 		break;
9560 	}
9561 }
9562 #ifndef EXCLUDE_WARPCORE
elink_warpcore_set_limiting_mode(struct elink_params * params,struct elink_phy * phy,u16 edc_mode)9563 static void elink_warpcore_set_limiting_mode(struct elink_params *params,
9564 					     struct elink_phy *phy,
9565 					     u16 edc_mode)
9566 {
9567 	u16 val = 0;
9568 	u16 mode = MDIO_WC_REG_UC_INFO_B1_FIRMWARE_MODE_DEFAULT;
9569 	struct elink_dev *cb = params->cb;
9570 
9571 	u8 lane = elink_get_warpcore_lane(phy, params);
9572 	/* This is a global register which controls all lanes */
9573 	elink_cl45_read(cb, phy, MDIO_WC_DEVAD,
9574 			MDIO_WC_REG_UC_INFO_B1_FIRMWARE_MODE, &val);
9575 	val &= ~(0xf << (lane << 2));
9576 
9577 	switch (edc_mode) {
9578 	case ELINK_EDC_MODE_LINEAR:
9579 	case ELINK_EDC_MODE_LIMITING:
9580 		mode = MDIO_WC_REG_UC_INFO_B1_FIRMWARE_MODE_DEFAULT;
9581 		break;
9582 	case ELINK_EDC_MODE_PASSIVE_DAC:
9583 	case ELINK_EDC_MODE_ACTIVE_DAC:
9584 		mode = MDIO_WC_REG_UC_INFO_B1_FIRMWARE_MODE_SFP_DAC;
9585 		break;
9586 	default:
9587 		break;
9588 	}
9589 
9590 	val |= (mode << (lane << 2));
9591 	elink_cl45_write(cb, phy, MDIO_WC_DEVAD,
9592 			 MDIO_WC_REG_UC_INFO_B1_FIRMWARE_MODE, val);
9593 	/* A must read */
9594 	elink_cl45_read(cb, phy, MDIO_WC_DEVAD,
9595 			MDIO_WC_REG_UC_INFO_B1_FIRMWARE_MODE, &val);
9596 
9597 	/* Restart microcode to re-read the new mode */
9598 	elink_warpcore_reset_lane(cb, phy, 1);
9599 	elink_warpcore_reset_lane(cb, phy, 0);
9600 
9601 }
9602 #endif // EXCLUDE_WARPCORE
9603 
elink_set_limiting_mode(struct elink_params * params,struct elink_phy * phy,u16 edc_mode)9604 static void elink_set_limiting_mode(struct elink_params *params,
9605 				    struct elink_phy *phy,
9606 				    u16 edc_mode)
9607 {
9608 	switch (phy->type) {
9609 #ifndef EXCLUDE_BCM87x6
9610 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8726:
9611 		elink_8726_set_limiting_mode(params->cb, phy, edc_mode);
9612 		break;
9613 #endif /* #ifndef EXCLUDE_BCM87x6 */
9614 #ifndef EXCLUDE_BCM8727_BCM8073
9615 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8727:
9616 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8722:
9617 		elink_8727_set_limiting_mode(params->cb, phy, edc_mode);
9618 		break;
9619 #endif // EXCLUDE_BCM8727_BCM8073
9620 #ifndef EXCLUDE_WARPCORE
9621 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT:
9622 		elink_warpcore_set_limiting_mode(params, phy, edc_mode);
9623 		break;
9624 #endif // EXCLUDE_WARPCORE
9625 	}
9626 }
9627 
elink_sfp_module_detection(struct elink_phy * phy,struct elink_params * params)9628 elink_status_t elink_sfp_module_detection(struct elink_phy *phy,
9629 			       struct elink_params *params)
9630 {
9631 	struct elink_dev *cb = params->cb;
9632 	u16 edc_mode;
9633 	elink_status_t rc = ELINK_STATUS_OK;
9634 
9635 	u32 val = REG_RD(cb, params->shmem_base +
9636 			     OFFSETOF(struct shmem_region, dev_info.
9637 				     port_feature_config[params->port].config));
9638 	/* Enabled transmitter by default */
9639 	elink_sfp_set_transmitter(params, phy, 1);
9640 	ELINK_DEBUG_P1(cb, "SFP+ module plugged in/out detected on port %d\n",
9641 		 params->port);
9642 	/* Power up module */
9643 	elink_power_sfp_module(params, phy, 1);
9644 	if (elink_get_edc_mode(phy, params, &edc_mode) != 0) {
9645 		ELINK_DEBUG_P0(cb, "Failed to get valid module type\n");
9646 		return ELINK_STATUS_ERROR;
9647 #ifdef ELINK_ENHANCEMENTS
9648 	} else if (elink_verify_sfp_module(phy, params) != 0) {
9649 		/* Check SFP+ module compatibility */
9650 		ELINK_DEBUG_P0(cb, "Module verification failed!!\n");
9651 		rc = ELINK_STATUS_ERROR;
9652 		/* Turn on fault module-detected led */
9653 		elink_set_sfp_module_fault_led(params,
9654 					       MISC_REGISTERS_GPIO_HIGH);
9655 
9656 		/* Check if need to power down the SFP+ module */
9657 		if ((val & PORT_FEAT_CFG_OPT_MDL_ENFRCMNT_MASK) ==
9658 		     PORT_FEAT_CFG_OPT_MDL_ENFRCMNT_POWER_DOWN) {
9659 			ELINK_DEBUG_P0(cb, "Shutdown SFP+ module!!\n");
9660 			elink_power_sfp_module(params, phy, 0);
9661 			return rc;
9662 		}
9663 	} else {
9664 		/* Turn off fault module-detected led */
9665 		elink_set_sfp_module_fault_led(params, MISC_REGISTERS_GPIO_LOW);
9666 #endif // ELINK_ENHANCEMENTS
9667 	}
9668 
9669 	/* Check and set limiting mode / LRM mode on 8726. On 8727 it
9670 	 * is done automatically
9671 	 */
9672 	elink_set_limiting_mode(params, phy, edc_mode);
9673 
9674 	/* Disable transmit for this module if the module is not approved, and
9675 	 * laser needs to be disabled.
9676 	 */
9677 	if ((rc != 0) &&
9678 	    ((val & PORT_FEAT_CFG_OPT_MDL_ENFRCMNT_MASK) ==
9679 	     PORT_FEAT_CFG_OPT_MDL_ENFRCMNT_DISABLE_TX_LASER))
9680 		elink_sfp_set_transmitter(params, phy, 0);
9681 
9682 	return rc;
9683 }
9684 #endif // EXCLUDE_NON_COMMON_INIT
9685 
9686 #ifdef ELINK_ENHANCEMENTS
elink_handle_module_detect_int(struct elink_params * params)9687 void elink_handle_module_detect_int(struct elink_params *params)
9688 {
9689 	struct elink_dev *cb = params->cb;
9690 	struct elink_phy *phy;
9691 	u32 gpio_val;
9692 	u8 gpio_num, gpio_port;
9693 	if (CHIP_IS_E3(params->chip_id)) {
9694 		phy = &params->phy[ELINK_INT_PHY];
9695 		/* Always enable TX laser,will be disabled in case of fault */
9696 		elink_sfp_set_transmitter(params, phy, 1);
9697 	} else {
9698 		phy = &params->phy[ELINK_EXT_PHY1];
9699 	}
9700 	if (elink_get_mod_abs_int_cfg(cb, params->chip_id, params->shmem_base,
9701 				      params->port, &gpio_num, &gpio_port) ==
9702 	    ELINK_STATUS_ERROR) {
9703 		ELINK_DEBUG_P0(cb, "Failed to get MOD_ABS interrupt config\n");
9704 		return;
9705 	}
9706 
9707 	/* Set valid module led off */
9708 	elink_set_sfp_module_fault_led(params, MISC_REGISTERS_GPIO_HIGH);
9709 
9710 	/* Get current gpio val reflecting module plugged in / out*/
9711 	gpio_val = ELINK_GET_GPIO(cb, gpio_num, gpio_port);
9712 
9713 	/* Call the handling function in case module is detected */
9714 	if (gpio_val == 0) {
9715 #ifdef ELINK_AUX_POWER
9716 		phy->flags |= ELINK_FLAGS_SFP_MODULE_PLUGGED_IN_WC;
9717 #endif
9718 		elink_set_mdio_emac_per_phy(cb, params);
9719 		elink_set_aer_mmd(params, phy);
9720 
9721 		elink_power_sfp_module(params, phy, 1);
9722 		ELINK_SET_GPIO_INT(cb, gpio_num,
9723 				   MISC_REGISTERS_GPIO_INT_OUTPUT_CLR,
9724 				   gpio_port);
9725 		if (elink_wait_for_sfp_module_initialized(phy, params) == 0) {
9726 			elink_sfp_module_detection(phy, params);
9727 			if (CHIP_IS_E3(params->chip_id)) {
9728 				u16 rx_tx_in_reset;
9729 				/* In case WC is out of reset, reconfigure the
9730 				 * link speed while taking into account 1G
9731 				 * module limitation.
9732 				 */
9733 				elink_cl45_read(cb, phy,
9734 						MDIO_WC_DEVAD,
9735 						MDIO_WC_REG_DIGITAL5_MISC6,
9736 						&rx_tx_in_reset);
9737 				if ((!rx_tx_in_reset) &&
9738 				    (params->link_flags &
9739 				     ELINK_PHY_INITIALIZED)) {
9740 					elink_warpcore_reset_lane(cb, phy, 1);
9741 					elink_warpcore_config_sfi(phy, params);
9742 					elink_warpcore_reset_lane(cb, phy, 0);
9743 				}
9744 			}
9745 		} else {
9746 			ELINK_DEBUG_P0(cb, "SFP+ module is not initialized\n");
9747 		}
9748 	} else {
9749 #ifdef ELINK_AUX_POWER
9750 		phy->flags &= ~ELINK_FLAGS_SFP_MODULE_PLUGGED_IN_WC;
9751 #endif
9752 		ELINK_SET_GPIO_INT(cb, gpio_num,
9753 				   MISC_REGISTERS_GPIO_INT_OUTPUT_SET,
9754 				   gpio_port);
9755 		/* Module was plugged out.
9756 		 * Disable transmit for this module
9757 		 */
9758 		phy->media_type = ELINK_ETH_PHY_NOT_PRESENT;
9759 	}
9760 }
9761 #endif // ELINK_ENHANCEMENTS
9762 
9763 /******************************************************************/
9764 /*		Used by 8706 and 8727                             */
9765 /******************************************************************/
9766 #ifndef EXCLUDE_NON_COMMON_INIT
9767 #if !defined(EXCLUDE_BCM87x6) || !defined(EXCLUDE_BCM8727_BCM8073)
elink_sfp_mask_fault(struct elink_dev * cb,struct elink_phy * phy,u16 alarm_status_offset,u16 alarm_ctrl_offset)9768 static void elink_sfp_mask_fault(struct elink_dev *cb,
9769 				 struct elink_phy *phy,
9770 				 u16 alarm_status_offset,
9771 				 u16 alarm_ctrl_offset)
9772 {
9773 	u16 alarm_status, val;
9774 	elink_cl45_read(cb, phy,
9775 			MDIO_PMA_DEVAD, alarm_status_offset,
9776 			&alarm_status);
9777 	elink_cl45_read(cb, phy,
9778 			MDIO_PMA_DEVAD, alarm_status_offset,
9779 			&alarm_status);
9780 	/* Mask or enable the fault event. */
9781 	elink_cl45_read(cb, phy, MDIO_PMA_DEVAD, alarm_ctrl_offset, &val);
9782 	if (alarm_status & (1<<0))
9783 		val &= ~(1<<0);
9784 	else
9785 		val |= (1<<0);
9786 	elink_cl45_write(cb, phy, MDIO_PMA_DEVAD, alarm_ctrl_offset, val);
9787 }
9788 #endif // #if !defined(EXCLUDE_BCM87x6) || !defined(EXCLUDE_BCM8727_BCM8073
9789 /******************************************************************/
9790 /*		common BCM8706/BCM8726 PHY SECTION		  */
9791 /******************************************************************/
9792 #ifndef EXCLUDE_BCM87x6
elink_8706_8726_read_status(struct elink_phy * phy,struct elink_params * params,struct elink_vars * vars)9793 static u8 elink_8706_8726_read_status(struct elink_phy *phy,
9794 				      struct elink_params *params,
9795 				      struct elink_vars *vars)
9796 {
9797 	u8 link_up = 0;
9798 	u16 val1, val2, rx_sd, pcs_status;
9799 	struct elink_dev *cb = params->cb;
9800 	ELINK_DEBUG_P0(cb, "XGXS 8706/8726\n");
9801 	/* Clear RX Alarm*/
9802 	elink_cl45_read(cb, phy,
9803 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXSTAT, &val2);
9804 
9805 	elink_sfp_mask_fault(cb, phy, MDIO_PMA_LASI_TXSTAT,
9806 			     MDIO_PMA_LASI_TXCTRL);
9807 
9808 	/* Clear LASI indication*/
9809 	elink_cl45_read(cb, phy,
9810 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_STAT, &val1);
9811 	elink_cl45_read(cb, phy,
9812 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_STAT, &val2);
9813 	ELINK_DEBUG_P2(cb, "8706/8726 LASI status 0x%x--> 0x%x\n", val1, val2);
9814 
9815 	elink_cl45_read(cb, phy,
9816 			MDIO_PMA_DEVAD, MDIO_PMA_REG_RX_SD, &rx_sd);
9817 	elink_cl45_read(cb, phy,
9818 			MDIO_PCS_DEVAD, MDIO_PCS_REG_STATUS, &pcs_status);
9819 	elink_cl45_read(cb, phy,
9820 			MDIO_AN_DEVAD, MDIO_AN_REG_LINK_STATUS, &val2);
9821 	elink_cl45_read(cb, phy,
9822 			MDIO_AN_DEVAD, MDIO_AN_REG_LINK_STATUS, &val2);
9823 
9824 	ELINK_DEBUG_P3(cb, "8706/8726 rx_sd 0x%x pcs_status 0x%x 1Gbps"
9825 			" link_status 0x%x\n", rx_sd, pcs_status, val2);
9826 	/* Link is up if both bit 0 of pmd_rx_sd and bit 0 of pcs_status
9827 	 * are set, or if the autoneg bit 1 is set
9828 	 */
9829 	link_up = ((rx_sd & pcs_status & 0x1) || (val2 & (1<<1)));
9830 	if (link_up) {
9831 		if (val2 & (1<<1))
9832 			vars->line_speed = ELINK_SPEED_1000;
9833 		else
9834 			vars->line_speed = ELINK_SPEED_10000;
9835 		elink_ext_phy_resolve_fc(phy, params, vars);
9836 		vars->duplex = DUPLEX_FULL;
9837 	}
9838 
9839 	/* Capture 10G link fault. Read twice to clear stale value. */
9840 	if (vars->line_speed == ELINK_SPEED_10000) {
9841 		elink_cl45_read(cb, phy, MDIO_PMA_DEVAD,
9842 			    MDIO_PMA_LASI_TXSTAT, &val1);
9843 		elink_cl45_read(cb, phy, MDIO_PMA_DEVAD,
9844 			    MDIO_PMA_LASI_TXSTAT, &val1);
9845 		if (val1 & (1<<0))
9846 			vars->fault_detected = 1;
9847 	}
9848 
9849 	return link_up;
9850 }
9851 
9852 /******************************************************************/
9853 /*			BCM8706 PHY SECTION			  */
9854 /******************************************************************/
9855 static elink_status_t
elink_8706_config_init(struct elink_phy * phy,struct elink_params * params,struct elink_vars * vars)9856 elink_8706_config_init(struct elink_phy *phy, struct elink_params *params,
9857     struct elink_vars *vars)
9858 {
9859 	u32 tx_en_mode;
9860 	u16 cnt, val, tmp1;
9861 	struct elink_dev *cb = params->cb;
9862 
9863 	ELINK_SET_GPIO(cb, MISC_REGISTERS_GPIO_2,
9864 		       MISC_REGISTERS_GPIO_OUTPUT_HIGH, params->port);
9865 	/* HW reset */
9866 	elink_ext_phy_hw_reset(cb, params->port);
9867 	elink_cl45_write(cb, phy, MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 0xa040);
9868 	elink_wait_reset_complete(cb, phy, params);
9869 
9870 	/* Wait until fw is loaded */
9871 	for (cnt = 0; cnt < 100; cnt++) {
9872 		elink_cl45_read(cb, phy,
9873 				MDIO_PMA_DEVAD, MDIO_PMA_REG_ROM_VER1, &val);
9874 		if (val)
9875 			break;
9876 		MSLEEP(cb, 10);
9877 	}
9878 	ELINK_DEBUG_P1(cb, "XGXS 8706 is initialized after %d ms\n", cnt);
9879 	if ((params->feature_config_flags &
9880 	     ELINK_FEATURE_CONFIG_OVERRIDE_PREEMPHASIS_ENABLED)) {
9881 		u8 i;
9882 		u16 reg;
9883 		for (i = 0; i < 4; i++) {
9884 			reg = MDIO_XS_8706_REG_BANK_RX0 +
9885 				i*(MDIO_XS_8706_REG_BANK_RX1 -
9886 				   MDIO_XS_8706_REG_BANK_RX0);
9887 			elink_cl45_read(cb, phy, MDIO_XS_DEVAD, reg, &val);
9888 			/* Clear first 3 bits of the control */
9889 			val &= ~0x7;
9890 			/* Set control bits according to configuration */
9891 			val |= (phy->rx_preemphasis[i] & 0x7);
9892 			ELINK_DEBUG_P2(cb, "Setting RX Equalizer to BCM8706"
9893 				   " reg 0x%x <-- val 0x%x\n", reg, val);
9894 			elink_cl45_write(cb, phy, MDIO_XS_DEVAD, reg, val);
9895 		}
9896 	}
9897 	/* Force speed */
9898 	if (phy->req_line_speed == ELINK_SPEED_10000) {
9899 		ELINK_DEBUG_P0(cb, "XGXS 8706 force 10Gbps\n");
9900 
9901 		elink_cl45_write(cb, phy,
9902 				 MDIO_PMA_DEVAD,
9903 				 MDIO_PMA_REG_DIGITAL_CTRL, 0x400);
9904 		elink_cl45_write(cb, phy,
9905 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_TXCTRL,
9906 				 0);
9907 		/* Arm LASI for link and Tx fault. */
9908 		elink_cl45_write(cb, phy,
9909 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_CTRL, 3);
9910 	} else {
9911 		/* Force 1Gbps using autoneg with 1G advertisement */
9912 
9913 		/* Allow CL37 through CL73 */
9914 		ELINK_DEBUG_P0(cb, "XGXS 8706 AutoNeg\n");
9915 		elink_cl45_write(cb, phy,
9916 				 MDIO_AN_DEVAD, MDIO_AN_REG_CL37_CL73, 0x040c);
9917 
9918 		/* Enable Full-Duplex advertisement on CL37 */
9919 		elink_cl45_write(cb, phy,
9920 				 MDIO_AN_DEVAD, MDIO_AN_REG_CL37_FC_LP, 0x0020);
9921 		/* Enable CL37 AN */
9922 		elink_cl45_write(cb, phy,
9923 				 MDIO_AN_DEVAD, MDIO_AN_REG_CL37_AN, 0x1000);
9924 		/* 1G support */
9925 		elink_cl45_write(cb, phy,
9926 				 MDIO_AN_DEVAD, MDIO_AN_REG_ADV, (1<<5));
9927 
9928 		/* Enable clause 73 AN */
9929 		elink_cl45_write(cb, phy,
9930 				 MDIO_AN_DEVAD, MDIO_AN_REG_CTRL, 0x1200);
9931 		elink_cl45_write(cb, phy,
9932 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXCTRL,
9933 				 0x0400);
9934 		elink_cl45_write(cb, phy,
9935 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_CTRL,
9936 				 0x0004);
9937 	}
9938 	elink_save_bcm_spirom_ver(cb, phy, params->port);
9939 
9940 	/* If TX Laser is controlled by GPIO_0, do not let PHY go into low
9941 	 * power mode, if TX Laser is disabled
9942 	 */
9943 
9944 	tx_en_mode = REG_RD(cb, params->shmem_base +
9945 			    OFFSETOF(struct shmem_region,
9946 				dev_info.port_hw_config[params->port].sfp_ctrl))
9947 			& PORT_HW_CFG_TX_LASER_MASK;
9948 
9949 	if (tx_en_mode == PORT_HW_CFG_TX_LASER_GPIO0) {
9950 		ELINK_DEBUG_P0(cb, "Enabling TXONOFF_PWRDN_DIS\n");
9951 		elink_cl45_read(cb, phy,
9952 			MDIO_PMA_DEVAD, MDIO_PMA_REG_DIGITAL_CTRL, &tmp1);
9953 		tmp1 |= 0x1;
9954 		elink_cl45_write(cb, phy,
9955 			MDIO_PMA_DEVAD, MDIO_PMA_REG_DIGITAL_CTRL, tmp1);
9956 	}
9957 
9958 	return ELINK_STATUS_OK;
9959 }
9960 
9961 static elink_status_t
elink_8706_read_status(struct elink_phy * phy,struct elink_params * params,struct elink_vars * vars)9962 elink_8706_read_status(struct elink_phy *phy, struct elink_params *params,
9963     struct elink_vars *vars)
9964 {
9965 	return elink_8706_8726_read_status(phy, params, vars);
9966 }
9967 
9968 /******************************************************************/
9969 /*			BCM8726 PHY SECTION			  */
9970 /******************************************************************/
elink_8726_config_loopback(struct elink_phy * phy,struct elink_params * params)9971 static void elink_8726_config_loopback(struct elink_phy *phy,
9972 				       struct elink_params *params)
9973 {
9974 	struct elink_dev *cb = params->cb;
9975 	ELINK_DEBUG_P0(cb, "PMA/PMD ext_phy_loopback: 8726\n");
9976 	elink_cl45_write(cb, phy, MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 0x0001);
9977 }
9978 
elink_8726_external_rom_boot(struct elink_phy * phy,struct elink_params * params)9979 static void elink_8726_external_rom_boot(struct elink_phy *phy,
9980 					 struct elink_params *params)
9981 {
9982 	struct elink_dev *cb = params->cb;
9983 	/* Need to wait 100ms after reset */
9984 	MSLEEP(cb, 100);
9985 
9986 	/* Micro controller re-boot */
9987 	elink_cl45_write(cb, phy,
9988 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_GEN_CTRL, 0x018B);
9989 
9990 	/* Set soft reset */
9991 	elink_cl45_write(cb, phy,
9992 			 MDIO_PMA_DEVAD,
9993 			 MDIO_PMA_REG_GEN_CTRL,
9994 			 MDIO_PMA_REG_GEN_CTRL_ROM_MICRO_RESET);
9995 
9996 	elink_cl45_write(cb, phy,
9997 			 MDIO_PMA_DEVAD,
9998 			 MDIO_PMA_REG_MISC_CTRL1, 0x0001);
9999 
10000 	elink_cl45_write(cb, phy,
10001 			 MDIO_PMA_DEVAD,
10002 			 MDIO_PMA_REG_GEN_CTRL,
10003 			 MDIO_PMA_REG_GEN_CTRL_ROM_RESET_INTERNAL_MP);
10004 
10005 	/* Wait for 150ms for microcode load */
10006 	MSLEEP(cb, 150);
10007 
10008 	/* Disable serial boot control, tristates pins SS_N, SCK, MOSI, MISO */
10009 	elink_cl45_write(cb, phy,
10010 			 MDIO_PMA_DEVAD,
10011 			 MDIO_PMA_REG_MISC_CTRL1, 0x0000);
10012 
10013 	MSLEEP(cb, 200);
10014 	elink_save_bcm_spirom_ver(cb, phy, params->port);
10015 }
10016 
10017 static elink_status_t
elink_8726_read_status(struct elink_phy * phy,struct elink_params * params,struct elink_vars * vars)10018 elink_8726_read_status(struct elink_phy *phy, struct elink_params *params,
10019     struct elink_vars *vars)
10020 {
10021 	struct elink_dev *cb = params->cb;
10022 	u16 val1;
10023 	u8 link_up = elink_8706_8726_read_status(phy, params, vars);
10024 	if (link_up) {
10025 		elink_cl45_read(cb, phy,
10026 				MDIO_PMA_DEVAD, MDIO_PMA_REG_PHY_IDENTIFIER,
10027 				&val1);
10028 		if (val1 & (1<<15)) {
10029 			ELINK_DEBUG_P0(cb, "Tx is disabled\n");
10030 			link_up = 0;
10031 			vars->line_speed = 0;
10032 		}
10033 	}
10034 	return link_up;
10035 }
10036 
10037 
10038 static elink_status_t
elink_8726_config_init(struct elink_phy * phy,struct elink_params * params,struct elink_vars * vars)10039 elink_8726_config_init(struct elink_phy *phy, struct elink_params *params,
10040     struct elink_vars *vars)
10041 {
10042 	struct elink_dev *cb = params->cb;
10043 	ELINK_DEBUG_P0(cb, "Initializing BCM8726\n");
10044 
10045 	elink_cl45_write(cb, phy, MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 1<<15);
10046 	elink_wait_reset_complete(cb, phy, params);
10047 
10048 	elink_8726_external_rom_boot(phy, params);
10049 
10050 	/* Need to call module detected on initialization since the module
10051 	 * detection triggered by actual module insertion might occur before
10052 	 * driver is loaded, and when driver is loaded, it reset all
10053 	 * registers, including the transmitter
10054 	 */
10055 	elink_sfp_module_detection(phy, params);
10056 
10057 	if (phy->req_line_speed == ELINK_SPEED_1000) {
10058 		ELINK_DEBUG_P0(cb, "Setting 1G force\n");
10059 		elink_cl45_write(cb, phy,
10060 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 0x40);
10061 		elink_cl45_write(cb, phy,
10062 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_10G_CTRL2, 0xD);
10063 		elink_cl45_write(cb, phy,
10064 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_CTRL, 0x5);
10065 		elink_cl45_write(cb, phy,
10066 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXCTRL,
10067 				 0x400);
10068 	} else if ((phy->req_line_speed == ELINK_SPEED_AUTO_NEG) &&
10069 		   (phy->speed_cap_mask &
10070 		      PORT_HW_CFG_SPEED_CAPABILITY_D0_1G) &&
10071 		   ((phy->speed_cap_mask &
10072 		      PORT_HW_CFG_SPEED_CAPABILITY_D0_10G) !=
10073 		    PORT_HW_CFG_SPEED_CAPABILITY_D0_10G)) {
10074 		ELINK_DEBUG_P0(cb, "Setting 1G clause37\n");
10075 		/* Set Flow control */
10076 		elink_ext_phy_set_pause(params, phy, vars);
10077 		elink_cl45_write(cb, phy,
10078 				 MDIO_AN_DEVAD, MDIO_AN_REG_ADV, 0x20);
10079 		elink_cl45_write(cb, phy,
10080 				 MDIO_AN_DEVAD, MDIO_AN_REG_CL37_CL73, 0x040c);
10081 		elink_cl45_write(cb, phy,
10082 				 MDIO_AN_DEVAD, MDIO_AN_REG_CL37_FC_LD, 0x0020);
10083 		elink_cl45_write(cb, phy,
10084 				 MDIO_AN_DEVAD, MDIO_AN_REG_CL37_AN, 0x1000);
10085 		elink_cl45_write(cb, phy,
10086 				MDIO_AN_DEVAD, MDIO_AN_REG_CTRL, 0x1200);
10087 		/* Enable RX-ALARM control to receive interrupt for 1G speed
10088 		 * change
10089 		 */
10090 		elink_cl45_write(cb, phy,
10091 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_CTRL, 0x4);
10092 		elink_cl45_write(cb, phy,
10093 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXCTRL,
10094 				 0x400);
10095 
10096 	} else { /* Default 10G. Set only LASI control */
10097 		elink_cl45_write(cb, phy,
10098 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_CTRL, 1);
10099 	}
10100 
10101 	/* Set TX PreEmphasis if needed */
10102 	if ((params->feature_config_flags &
10103 	     ELINK_FEATURE_CONFIG_OVERRIDE_PREEMPHASIS_ENABLED)) {
10104 		ELINK_DEBUG_P2(cb,
10105 		   "Setting TX_CTRL1 0x%x, TX_CTRL2 0x%x\n",
10106 			 phy->tx_preemphasis[0],
10107 			 phy->tx_preemphasis[1]);
10108 		elink_cl45_write(cb, phy,
10109 				 MDIO_PMA_DEVAD,
10110 				 MDIO_PMA_REG_8726_TX_CTRL1,
10111 				 phy->tx_preemphasis[0]);
10112 
10113 		elink_cl45_write(cb, phy,
10114 				 MDIO_PMA_DEVAD,
10115 				 MDIO_PMA_REG_8726_TX_CTRL2,
10116 				 phy->tx_preemphasis[1]);
10117 	}
10118 
10119 	return ELINK_STATUS_OK;
10120 
10121 }
10122 
elink_8726_link_reset(struct elink_phy * phy,struct elink_params * params)10123 static void elink_8726_link_reset(struct elink_phy *phy,
10124 				  struct elink_params *params)
10125 {
10126 #ifndef EXCLUDE_LINK_RESET
10127 	struct elink_dev *cb = params->cb;
10128 	ELINK_DEBUG_P1(cb, "elink_8726_link_reset port %d\n", params->port);
10129 	/* Set serial boot control for external load */
10130 	elink_cl45_write(cb, phy,
10131 			 MDIO_PMA_DEVAD,
10132 			 MDIO_PMA_REG_GEN_CTRL, 0x0001);
10133 #endif // EXCLUDE_LINK_RESET
10134 }
10135 #endif /* #ifndef EXCLUDE_BCM87x6 */
10136 
10137 /******************************************************************/
10138 /*			BCM8727 PHY SECTION			  */
10139 /******************************************************************/
10140 
10141 #ifndef EXCLUDE_BCM8727_BCM8073
elink_8727_set_link_led(struct elink_phy * phy,struct elink_params * params,u8 mode)10142 static void elink_8727_set_link_led(struct elink_phy *phy,
10143 				    struct elink_params *params, u8 mode)
10144 {
10145 	struct elink_dev *cb = params->cb;
10146 	u16 led_mode_bitmask = 0;
10147 	u16 gpio_pins_bitmask = 0;
10148 	u16 val;
10149 	/* Only NOC flavor requires to set the LED specifically */
10150 	if (!(phy->flags & ELINK_FLAGS_NOC))
10151 		return;
10152 	switch (mode) {
10153 	case ELINK_LED_MODE_FRONT_PANEL_OFF:
10154 	case ELINK_LED_MODE_OFF:
10155 		led_mode_bitmask = 0;
10156 		gpio_pins_bitmask = 0x03;
10157 		break;
10158 	case ELINK_LED_MODE_ON:
10159 		led_mode_bitmask = 0;
10160 		gpio_pins_bitmask = 0x02;
10161 		break;
10162 	case ELINK_LED_MODE_OPER:
10163 		led_mode_bitmask = 0x60;
10164 		gpio_pins_bitmask = 0x11;
10165 		break;
10166 	}
10167 	elink_cl45_read(cb, phy,
10168 			MDIO_PMA_DEVAD,
10169 			MDIO_PMA_REG_8727_PCS_OPT_CTRL,
10170 			&val);
10171 	val &= 0xff8f;
10172 	val |= led_mode_bitmask;
10173 	elink_cl45_write(cb, phy,
10174 			 MDIO_PMA_DEVAD,
10175 			 MDIO_PMA_REG_8727_PCS_OPT_CTRL,
10176 			 val);
10177 	elink_cl45_read(cb, phy,
10178 			MDIO_PMA_DEVAD,
10179 			MDIO_PMA_REG_8727_GPIO_CTRL,
10180 			&val);
10181 	val &= 0xffe0;
10182 	val |= gpio_pins_bitmask;
10183 	elink_cl45_write(cb, phy,
10184 			 MDIO_PMA_DEVAD,
10185 			 MDIO_PMA_REG_8727_GPIO_CTRL,
10186 			 val);
10187 }
elink_8727_hw_reset(struct elink_phy * phy,struct elink_params * params)10188 static void elink_8727_hw_reset(struct elink_phy *phy,
10189 				struct elink_params *params) {
10190 	u32 swap_val, swap_override;
10191 	u8 port;
10192 	/* The PHY reset is controlled by GPIO 1. Fake the port number
10193 	 * to cancel the swap done in set_gpio()
10194 	 */
10195 	struct elink_dev *cb = params->cb;
10196 	swap_val = REG_RD(cb, NIG_REG_PORT_SWAP);
10197 	swap_override = REG_RD(cb, NIG_REG_STRAP_OVERRIDE);
10198 	port = (swap_val && swap_override) ^ 1;
10199 	ELINK_SET_GPIO(cb, MISC_REGISTERS_GPIO_1,
10200 		       MISC_REGISTERS_GPIO_OUTPUT_LOW, port);
10201 }
10202 
elink_8727_config_speed(struct elink_phy * phy,struct elink_params * params)10203 static void elink_8727_config_speed(struct elink_phy *phy,
10204 				    struct elink_params *params)
10205 {
10206 	struct elink_dev *cb = params->cb;
10207 	u16 tmp1, val;
10208 	/* Set option 1G speed */
10209 	if ((phy->req_line_speed == ELINK_SPEED_1000) ||
10210 	    (phy->media_type == ELINK_ETH_PHY_SFP_1G_FIBER)) {
10211 		ELINK_DEBUG_P0(cb, "Setting 1G force\n");
10212 		elink_cl45_write(cb, phy,
10213 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 0x40);
10214 		elink_cl45_write(cb, phy,
10215 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_10G_CTRL2, 0xD);
10216 		elink_cl45_read(cb, phy,
10217 				MDIO_PMA_DEVAD, MDIO_PMA_REG_10G_CTRL2, &tmp1);
10218 		ELINK_DEBUG_P1(cb, "1.7 = 0x%x\n", tmp1);
10219 		/* Power down the XAUI until link is up in case of dual-media
10220 		 * and 1G
10221 		 */
10222 		if (ELINK_DUAL_MEDIA(params)) {
10223 			elink_cl45_read(cb, phy,
10224 					MDIO_PMA_DEVAD,
10225 					MDIO_PMA_REG_8727_PCS_GP, &val);
10226 			val |= (3<<10);
10227 			elink_cl45_write(cb, phy,
10228 					 MDIO_PMA_DEVAD,
10229 					 MDIO_PMA_REG_8727_PCS_GP, val);
10230 		}
10231 	} else if ((phy->req_line_speed == ELINK_SPEED_AUTO_NEG) &&
10232 		   ((phy->speed_cap_mask &
10233 		     PORT_HW_CFG_SPEED_CAPABILITY_D0_1G)) &&
10234 		   ((phy->speed_cap_mask &
10235 		      PORT_HW_CFG_SPEED_CAPABILITY_D0_10G) !=
10236 		   PORT_HW_CFG_SPEED_CAPABILITY_D0_10G)) {
10237 
10238 		ELINK_DEBUG_P0(cb, "Setting 1G clause37\n");
10239 		elink_cl45_write(cb, phy,
10240 				 MDIO_AN_DEVAD, MDIO_AN_REG_8727_MISC_CTRL, 0);
10241 		elink_cl45_write(cb, phy,
10242 				 MDIO_AN_DEVAD, MDIO_AN_REG_CL37_AN, 0x1300);
10243 	} else {
10244 		/* Since the 8727 has only single reset pin, need to set the 10G
10245 		 * registers although it is default
10246 		 */
10247 		elink_cl45_write(cb, phy,
10248 				 MDIO_AN_DEVAD, MDIO_AN_REG_8727_MISC_CTRL,
10249 				 0x0020);
10250 		elink_cl45_write(cb, phy,
10251 				 MDIO_AN_DEVAD, MDIO_AN_REG_CL37_AN, 0x0100);
10252 		elink_cl45_write(cb, phy,
10253 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 0x2040);
10254 		elink_cl45_write(cb, phy,
10255 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_10G_CTRL2,
10256 				 0x0008);
10257 	}
10258 }
10259 
10260 static elink_status_t
elink_8727_config_init(struct elink_phy * phy,struct elink_params * params,struct elink_vars * vars)10261 elink_8727_config_init(struct elink_phy *phy, struct elink_params *params,
10262     struct elink_vars *vars)
10263 {
10264 	u32 tx_en_mode;
10265 	u16 tmp1, mod_abs, tmp2;
10266 	struct elink_dev *cb = params->cb;
10267 	/* Enable PMD link, MOD_ABS_FLT, and 1G link alarm */
10268 
10269 	elink_wait_reset_complete(cb, phy, params);
10270 
10271 	ELINK_DEBUG_P0(cb, "Initializing BCM8727\n");
10272 
10273 	elink_8727_specific_func(phy, params, ELINK_PHY_INIT);
10274 	/* Initially configure MOD_ABS to interrupt when module is
10275 	 * presence( bit 8)
10276 	 */
10277 	elink_cl45_read(cb, phy,
10278 			MDIO_PMA_DEVAD, MDIO_PMA_REG_PHY_IDENTIFIER, &mod_abs);
10279 	/* Set EDC off by setting OPTXLOS signal input to low (bit 9).
10280 	 * When the EDC is off it locks onto a reference clock and avoids
10281 	 * becoming 'lost'
10282 	 */
10283 	mod_abs &= ~(1<<8);
10284 	if (!(phy->flags & ELINK_FLAGS_NOC))
10285 		mod_abs &= ~(1<<9);
10286 	elink_cl45_write(cb, phy,
10287 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_PHY_IDENTIFIER, mod_abs);
10288 
10289 	/* Enable/Disable PHY transmitter output */
10290 	elink_set_disable_pmd_transmit(params, phy, 0);
10291 
10292 	elink_8727_power_module(cb, phy, 1);
10293 
10294 	elink_cl45_read(cb, phy,
10295 			MDIO_PMA_DEVAD, MDIO_PMA_REG_M8051_MSGOUT_REG, &tmp1);
10296 
10297 	elink_cl45_read(cb, phy,
10298 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXSTAT, &tmp1);
10299 
10300 	elink_8727_config_speed(phy, params);
10301 
10302 
10303 	/* Set TX PreEmphasis if needed */
10304 	if ((params->feature_config_flags &
10305 	     ELINK_FEATURE_CONFIG_OVERRIDE_PREEMPHASIS_ENABLED)) {
10306 		ELINK_DEBUG_P2(cb, "Setting TX_CTRL1 0x%x, TX_CTRL2 0x%x\n",
10307 			   phy->tx_preemphasis[0],
10308 			   phy->tx_preemphasis[1]);
10309 		elink_cl45_write(cb, phy,
10310 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_8727_TX_CTRL1,
10311 				 phy->tx_preemphasis[0]);
10312 
10313 		elink_cl45_write(cb, phy,
10314 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_8727_TX_CTRL2,
10315 				 phy->tx_preemphasis[1]);
10316 	}
10317 
10318 	/* If TX Laser is controlled by GPIO_0, do not let PHY go into low
10319 	 * power mode, if TX Laser is disabled
10320 	 */
10321 	tx_en_mode = REG_RD(cb, params->shmem_base +
10322 			    OFFSETOF(struct shmem_region,
10323 				dev_info.port_hw_config[params->port].sfp_ctrl))
10324 			& PORT_HW_CFG_TX_LASER_MASK;
10325 
10326 	if (tx_en_mode == PORT_HW_CFG_TX_LASER_GPIO0) {
10327 
10328 		ELINK_DEBUG_P0(cb, "Enabling TXONOFF_PWRDN_DIS\n");
10329 		elink_cl45_read(cb, phy,
10330 			MDIO_PMA_DEVAD, MDIO_PMA_REG_8727_OPT_CFG_REG, &tmp2);
10331 		tmp2 |= 0x1000;
10332 		tmp2 &= 0xFFEF;
10333 		elink_cl45_write(cb, phy,
10334 			MDIO_PMA_DEVAD, MDIO_PMA_REG_8727_OPT_CFG_REG, tmp2);
10335 		elink_cl45_read(cb, phy,
10336 				MDIO_PMA_DEVAD, MDIO_PMA_REG_PHY_IDENTIFIER,
10337 				&tmp2);
10338 		elink_cl45_write(cb, phy,
10339 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_PHY_IDENTIFIER,
10340 				 (tmp2 & 0x7fff));
10341 	}
10342 
10343 	return ELINK_STATUS_OK;
10344 }
10345 
elink_8727_handle_mod_abs(struct elink_phy * phy,struct elink_params * params)10346 static void elink_8727_handle_mod_abs(struct elink_phy *phy,
10347 				      struct elink_params *params)
10348 {
10349 	struct elink_dev *cb = params->cb;
10350 	u16 mod_abs, rx_alarm_status;
10351 	u32 val = REG_RD(cb, params->shmem_base +
10352 			     OFFSETOF(struct shmem_region, dev_info.
10353 				      port_feature_config[params->port].
10354 				      config));
10355 	elink_cl45_read(cb, phy,
10356 			MDIO_PMA_DEVAD,
10357 			MDIO_PMA_REG_PHY_IDENTIFIER, &mod_abs);
10358 	if (mod_abs & (1<<8)) {
10359 
10360 		/* Module is absent */
10361 		ELINK_DEBUG_P0(cb,
10362 		   "MOD_ABS indication show module is absent\n");
10363 		phy->media_type = ELINK_ETH_PHY_NOT_PRESENT;
10364 		/* 1. Set mod_abs to detect next module
10365 		 *    presence event
10366 		 * 2. Set EDC off by setting OPTXLOS signal input to low
10367 		 *    (bit 9).
10368 		 *    When the EDC is off it locks onto a reference clock and
10369 		 *    avoids becoming 'lost'.
10370 		 */
10371 		mod_abs &= ~(1<<8);
10372 		if (!(phy->flags & ELINK_FLAGS_NOC))
10373 			mod_abs &= ~(1<<9);
10374 		elink_cl45_write(cb, phy,
10375 				 MDIO_PMA_DEVAD,
10376 				 MDIO_PMA_REG_PHY_IDENTIFIER, mod_abs);
10377 
10378 		/* Clear RX alarm since it stays up as long as
10379 		 * the mod_abs wasn't changed
10380 		 */
10381 		elink_cl45_read(cb, phy,
10382 				MDIO_PMA_DEVAD,
10383 				MDIO_PMA_LASI_RXSTAT, &rx_alarm_status);
10384 
10385 	} else {
10386 		/* Module is present */
10387 		ELINK_DEBUG_P0(cb,
10388 		   "MOD_ABS indication show module is present\n");
10389 		/* First disable transmitter, and if the module is ok, the
10390 		 * module_detection will enable it
10391 		 * 1. Set mod_abs to detect next module absent event ( bit 8)
10392 		 * 2. Restore the default polarity of the OPRXLOS signal and
10393 		 * this signal will then correctly indicate the presence or
10394 		 * absence of the Rx signal. (bit 9)
10395 		 */
10396 		mod_abs |= (1<<8);
10397 		if (!(phy->flags & ELINK_FLAGS_NOC))
10398 			mod_abs |= (1<<9);
10399 		elink_cl45_write(cb, phy,
10400 				 MDIO_PMA_DEVAD,
10401 				 MDIO_PMA_REG_PHY_IDENTIFIER, mod_abs);
10402 
10403 		/* Clear RX alarm since it stays up as long as the mod_abs
10404 		 * wasn't changed. This is need to be done before calling the
10405 		 * module detection, otherwise it will clear* the link update
10406 		 * alarm
10407 		 */
10408 		elink_cl45_read(cb, phy,
10409 				MDIO_PMA_DEVAD,
10410 				MDIO_PMA_LASI_RXSTAT, &rx_alarm_status);
10411 
10412 
10413 		if ((val & PORT_FEAT_CFG_OPT_MDL_ENFRCMNT_MASK) ==
10414 		    PORT_FEAT_CFG_OPT_MDL_ENFRCMNT_DISABLE_TX_LASER)
10415 			elink_sfp_set_transmitter(params, phy, 0);
10416 
10417 		if (elink_wait_for_sfp_module_initialized(phy, params) == 0)
10418 			elink_sfp_module_detection(phy, params);
10419 		else
10420 			ELINK_DEBUG_P0(cb, "SFP+ module is not initialized\n");
10421 
10422 		/* Reconfigure link speed based on module type limitations */
10423 		elink_8727_config_speed(phy, params);
10424 	}
10425 
10426 	ELINK_DEBUG_P1(cb, "8727 RX_ALARM_STATUS 0x%x\n",
10427 		   rx_alarm_status);
10428 	/* No need to check link status in case of module plugged in/out */
10429 }
10430 
10431 static elink_status_t
elink_8727_read_status(struct elink_phy * phy,struct elink_params * params,struct elink_vars * vars)10432 elink_8727_read_status(struct elink_phy *phy, struct elink_params *params,
10433     struct elink_vars *vars)
10434 {
10435 	struct elink_dev *cb = params->cb;
10436 	u8 link_up = 0;
10437 	u16 link_status = 0;
10438 	u16 rx_alarm_status, lasi_ctrl, val1;
10439 
10440 	/* If PHY is not initialized, do not check link status */
10441 	elink_cl45_read(cb, phy,
10442 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_CTRL,
10443 			&lasi_ctrl);
10444 	if (!lasi_ctrl)
10445 		return 0;
10446 
10447 	/* Check the LASI on Rx */
10448 	elink_cl45_read(cb, phy,
10449 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXSTAT,
10450 			&rx_alarm_status);
10451 	vars->line_speed = 0;
10452 	ELINK_DEBUG_P1(cb, "8727 RX_ALARM_STATUS  0x%x\n", rx_alarm_status);
10453 
10454 	elink_sfp_mask_fault(cb, phy, MDIO_PMA_LASI_TXSTAT,
10455 			     MDIO_PMA_LASI_TXCTRL);
10456 
10457 	elink_cl45_read(cb, phy,
10458 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_STAT, &val1);
10459 
10460 	ELINK_DEBUG_P1(cb, "8727 LASI status 0x%x\n", val1);
10461 
10462 	/* Clear MSG-OUT */
10463 	elink_cl45_read(cb, phy,
10464 			MDIO_PMA_DEVAD, MDIO_PMA_REG_M8051_MSGOUT_REG, &val1);
10465 
10466 	/* If a module is present and there is need to check
10467 	 * for over current
10468 	 */
10469 	if (!(phy->flags & ELINK_FLAGS_NOC) && !(rx_alarm_status & (1<<5))) {
10470 		/* Check over-current using 8727 GPIO0 input*/
10471 		elink_cl45_read(cb, phy,
10472 				MDIO_PMA_DEVAD, MDIO_PMA_REG_8727_GPIO_CTRL,
10473 				&val1);
10474 
10475 		if ((val1 & (1<<8)) == 0) {
10476 #ifndef ELINK_AUX_POWER
10477 			u8 oc_port = params->port;
10478 			if (!CHIP_IS_E1X(params->chip_id))
10479 				oc_port = PATH_ID(cb) + (params->port << 1);
10480 			ELINK_DEBUG_P1(cb,
10481 			   "8727 Power fault has been detected on port %d\n",
10482 			   oc_port);
10483 			elink_cb_event_log(cb, ELINK_LOG_ID_OVER_CURRENT, oc_port); //"Error: Power fault on Port %d has "
10484 					  //  "been detected and the power to "
10485 					  //  "that SFP+ module has been removed "
10486 					  //  "to prevent failure of the card. "
10487 					  //  "Please remove the SFP+ module and "
10488 					  //  "restart the system to clear this "
10489 					  //  "error.\n",
10490 #endif
10491 			/* Disable all RX_ALARMs except for mod_abs */
10492 			elink_cl45_write(cb, phy,
10493 					 MDIO_PMA_DEVAD,
10494 					 MDIO_PMA_LASI_RXCTRL, (1<<5));
10495 
10496 			elink_cl45_read(cb, phy,
10497 					MDIO_PMA_DEVAD,
10498 					MDIO_PMA_REG_PHY_IDENTIFIER, &val1);
10499 			/* Wait for module_absent_event */
10500 			val1 |= (1<<8);
10501 			elink_cl45_write(cb, phy,
10502 					 MDIO_PMA_DEVAD,
10503 					 MDIO_PMA_REG_PHY_IDENTIFIER, val1);
10504 			/* Clear RX alarm */
10505 			elink_cl45_read(cb, phy,
10506 				MDIO_PMA_DEVAD,
10507 				MDIO_PMA_LASI_RXSTAT, &rx_alarm_status);
10508 			elink_8727_power_module(params->cb, phy, 0);
10509 			return 0;
10510 		}
10511 	} /* Over current check */
10512 
10513 	/* When module absent bit is set, check module */
10514 	if (rx_alarm_status & (1<<5)) {
10515 		elink_8727_handle_mod_abs(phy, params);
10516 		/* Enable all mod_abs and link detection bits */
10517 		elink_cl45_write(cb, phy,
10518 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXCTRL,
10519 				 ((1<<5) | (1<<2)));
10520 	}
10521 
10522 	if (!(phy->flags & ELINK_FLAGS_SFP_NOT_APPROVED)) {
10523 		ELINK_DEBUG_P0(cb, "Enabling 8727 TX laser\n");
10524 		elink_sfp_set_transmitter(params, phy, 1);
10525 	} else {
10526 		ELINK_DEBUG_P0(cb, "Tx is disabled\n");
10527 		return 0;
10528 	}
10529 
10530 	elink_cl45_read(cb, phy,
10531 			MDIO_PMA_DEVAD,
10532 			MDIO_PMA_REG_8073_SPEED_LINK_STATUS, &link_status);
10533 
10534 	/* Bits 0..2 --> speed detected,
10535 	 * Bits 13..15--> link is down
10536 	 */
10537 	if ((link_status & (1<<2)) && (!(link_status & (1<<15)))) {
10538 		link_up = 1;
10539 		vars->line_speed = ELINK_SPEED_10000;
10540 		ELINK_DEBUG_P1(cb, "port %x: External link up in 10G\n",
10541 			   params->port);
10542 	} else if ((link_status & (1<<0)) && (!(link_status & (1<<13)))) {
10543 		link_up = 1;
10544 		vars->line_speed = ELINK_SPEED_1000;
10545 		ELINK_DEBUG_P1(cb, "port %x: External link up in 1G\n",
10546 			   params->port);
10547 	} else {
10548 		link_up = 0;
10549 		ELINK_DEBUG_P1(cb, "port %x: External link is down\n",
10550 			   params->port);
10551 	}
10552 
10553 	/* Capture 10G link fault. */
10554 	if (vars->line_speed == ELINK_SPEED_10000) {
10555 		elink_cl45_read(cb, phy, MDIO_PMA_DEVAD,
10556 			    MDIO_PMA_LASI_TXSTAT, &val1);
10557 
10558 		elink_cl45_read(cb, phy, MDIO_PMA_DEVAD,
10559 			    MDIO_PMA_LASI_TXSTAT, &val1);
10560 
10561 		if (val1 & (1<<0)) {
10562 			vars->fault_detected = 1;
10563 		}
10564 	}
10565 
10566 	if (link_up) {
10567 		elink_ext_phy_resolve_fc(phy, params, vars);
10568 		vars->duplex = DUPLEX_FULL;
10569 		ELINK_DEBUG_P1(cb, "duplex = 0x%x\n", vars->duplex);
10570 	}
10571 
10572 	if ((ELINK_DUAL_MEDIA(params)) &&
10573 	    (phy->req_line_speed == ELINK_SPEED_1000)) {
10574 		elink_cl45_read(cb, phy,
10575 				MDIO_PMA_DEVAD,
10576 				MDIO_PMA_REG_8727_PCS_GP, &val1);
10577 		/* In case of dual-media board and 1G, power up the XAUI side,
10578 		 * otherwise power it down. For 10G it is done automatically
10579 		 */
10580 		if (link_up)
10581 			val1 &= ~(3<<10);
10582 		else
10583 			val1 |= (3<<10);
10584 		elink_cl45_write(cb, phy,
10585 				 MDIO_PMA_DEVAD,
10586 				 MDIO_PMA_REG_8727_PCS_GP, val1);
10587 	}
10588 	return link_up;
10589 }
10590 
elink_8727_link_reset(struct elink_phy * phy,struct elink_params * params)10591 static void elink_8727_link_reset(struct elink_phy *phy,
10592 				  struct elink_params *params)
10593 {
10594 #ifndef EXCLUDE_LINK_RESET
10595 	struct elink_dev *cb = params->cb;
10596 
10597 	/* Enable/Disable PHY transmitter output */
10598 	elink_set_disable_pmd_transmit(params, phy, 1);
10599 
10600 	/* Disable Transmitter */
10601 	elink_sfp_set_transmitter(params, phy, 0);
10602 	/* Clear LASI */
10603 	elink_cl45_write(cb, phy, MDIO_PMA_DEVAD, MDIO_PMA_LASI_CTRL, 0);
10604 
10605 #endif // EXCLUDE_LINK_RESET
10606 }
10607 #endif /* EXCLUDE_BCM8727_BCM8073 */
10608 #endif // EXCLUDE_NON_COMMON_INIT
10609 
10610 /******************************************************************/
10611 /*		BCM8481/BCM84823/BCM84833 PHY SECTION	          */
10612 /******************************************************************/
10613 #if !defined(EXCLUDE_BCM8481) || !defined(EXCLUDE_BCM84833)
elink_save_848xx_spirom_version(struct elink_phy * phy,struct elink_dev * cb,u8 port)10614 static void elink_save_848xx_spirom_version(struct elink_phy *phy,
10615 					    struct elink_dev *cb,
10616 					    u8 port)
10617 {
10618 #ifndef EXCLUDE_BCM8481
10619 	u16 val, fw_ver2, cnt, i;
10620 	static struct elink_reg_set reg_set[] = {
10621 		{MDIO_PMA_DEVAD, 0xA819, 0x0014},
10622 		{MDIO_PMA_DEVAD, 0xA81A, 0xc200},
10623 		{MDIO_PMA_DEVAD, 0xA81B, 0x0000},
10624 		{MDIO_PMA_DEVAD, 0xA81C, 0x0300},
10625 		{MDIO_PMA_DEVAD, 0xA817, 0x0009}
10626 	};
10627 #endif
10628 	u16 fw_ver1;
10629 
10630 	if ((phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833) ||
10631 	    (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84834)) {
10632 		elink_cl45_read(cb, phy, MDIO_CTL_DEVAD, 0x400f, &fw_ver1);
10633 		elink_save_spirom_version(cb, port, fw_ver1 & 0xfff,
10634 				phy->ver_addr);
10635 	} else {
10636 #ifndef EXCLUDE_BCM8481
10637 		/* For 32-bit registers in 848xx, access via MDIO2ARM i/f. */
10638 		/* (1) set reg 0xc200_0014(SPI_BRIDGE_CTRL_2) to 0x03000000 */
10639 		for (i = 0; i < ARRAY_SIZE(reg_set); i++)
10640 			elink_cl45_write(cb, phy, reg_set[i].devad,
10641 					 reg_set[i].reg, reg_set[i].val);
10642 
10643 		for (cnt = 0; cnt < 100; cnt++) {
10644 			elink_cl45_read(cb, phy, MDIO_PMA_DEVAD, 0xA818, &val);
10645 			if (val & 1)
10646 				break;
10647 			USLEEP(cb, 5);
10648 		}
10649 		if (cnt == 100) {
10650 			ELINK_DEBUG_P0(cb, "Unable to read 848xx "
10651 					"phy fw version(1)\n");
10652 			elink_save_spirom_version(cb, port, 0,
10653 						  phy->ver_addr);
10654 			return;
10655 		}
10656 
10657 
10658 		/* 2) read register 0xc200_0000 (SPI_FW_STATUS) */
10659 		elink_cl45_write(cb, phy, MDIO_PMA_DEVAD, 0xA819, 0x0000);
10660 		elink_cl45_write(cb, phy, MDIO_PMA_DEVAD, 0xA81A, 0xc200);
10661 		elink_cl45_write(cb, phy, MDIO_PMA_DEVAD, 0xA817, 0x000A);
10662 		for (cnt = 0; cnt < 100; cnt++) {
10663 			elink_cl45_read(cb, phy, MDIO_PMA_DEVAD, 0xA818, &val);
10664 			if (val & 1)
10665 				break;
10666 			USLEEP(cb, 5);
10667 		}
10668 		if (cnt == 100) {
10669 			ELINK_DEBUG_P0(cb, "Unable to read 848xx phy fw "
10670 					"version(2)\n");
10671 			elink_save_spirom_version(cb, port, 0,
10672 						  phy->ver_addr);
10673 			return;
10674 		}
10675 
10676 		/* lower 16 bits of the register SPI_FW_STATUS */
10677 		elink_cl45_read(cb, phy, MDIO_PMA_DEVAD, 0xA81B, &fw_ver1);
10678 		/* upper 16 bits of register SPI_FW_STATUS */
10679 		elink_cl45_read(cb, phy, MDIO_PMA_DEVAD, 0xA81C, &fw_ver2);
10680 
10681 		elink_save_spirom_version(cb, port, (fw_ver2<<16) | fw_ver1,
10682 					  phy->ver_addr);
10683 #endif /* EXCLUDE_BCM8481 */
10684 	}
10685 
10686 }
10687 #ifndef EXCLUDE_NON_COMMON_INIT
elink_848xx_set_led(struct elink_dev * cb,struct elink_phy * phy)10688 static void elink_848xx_set_led(struct elink_dev *cb,
10689 				struct elink_phy *phy)
10690 {
10691 	u16 val, offset, i;
10692 	static struct elink_reg_set reg_set[] = {
10693 		{MDIO_PMA_DEVAD, MDIO_PMA_REG_8481_LED1_MASK, 0x0080},
10694 		{MDIO_PMA_DEVAD, MDIO_PMA_REG_8481_LED2_MASK, 0x0018},
10695 		{MDIO_PMA_DEVAD, MDIO_PMA_REG_8481_LED3_MASK, 0x0006},
10696 		{MDIO_PMA_DEVAD, MDIO_PMA_REG_8481_LED3_BLINK, 0x0000},
10697 		{MDIO_PMA_DEVAD, MDIO_PMA_REG_84823_CTL_SLOW_CLK_CNT_HIGH,
10698 			MDIO_PMA_REG_84823_BLINK_RATE_VAL_15P9HZ},
10699 		{MDIO_AN_DEVAD, 0xFFFB, 0xFFFD}
10700 	};
10701 	/* PHYC_CTL_LED_CTL */
10702 	elink_cl45_read(cb, phy,
10703 			MDIO_PMA_DEVAD,
10704 			MDIO_PMA_REG_8481_LINK_SIGNAL, &val);
10705 	val &= 0xFE00;
10706 	val |= 0x0092;
10707 
10708 	elink_cl45_write(cb, phy,
10709 			 MDIO_PMA_DEVAD,
10710 			 MDIO_PMA_REG_8481_LINK_SIGNAL, val);
10711 
10712 	for (i = 0; i < ARRAY_SIZE(reg_set); i++)
10713 		elink_cl45_write(cb, phy, reg_set[i].devad, reg_set[i].reg,
10714 				 reg_set[i].val);
10715 
10716 	if ((phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833) ||
10717 	    (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84834))
10718 		offset = MDIO_PMA_REG_84833_CTL_LED_CTL_1;
10719 	else
10720 		offset = MDIO_PMA_REG_84823_CTL_LED_CTL_1;
10721 
10722 	/* stretch_en for LED3*/
10723 	elink_cl45_read_or_write(cb, phy,
10724 				 MDIO_PMA_DEVAD, offset,
10725 				 MDIO_PMA_REG_84823_LED3_STRETCH_EN);
10726 }
10727 
elink_848xx_specific_func(struct elink_phy * phy,struct elink_params * params,u32 action)10728 static void elink_848xx_specific_func(struct elink_phy *phy,
10729 				      struct elink_params *params,
10730 				      u32 action)
10731 {
10732 	struct elink_dev *cb = params->cb;
10733 	switch (action) {
10734 	case ELINK_PHY_INIT:
10735 		if ((phy->type != PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833) &&
10736 		    (phy->type != PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84834)) {
10737 			/* Save spirom version */
10738 			elink_save_848xx_spirom_version(phy, cb, params->port);
10739 		}
10740 		/* This phy uses the NIG latch mechanism since link indication
10741 		 * arrives through its LED4 and not via its LASI signal, so we
10742 		 * get steady signal instead of clear on read
10743 		 */
10744 		elink_bits_en(cb, NIG_REG_LATCH_BC_0 + params->port*4,
10745 			      1 << ELINK_NIG_LATCH_BC_ENABLE_MI_INT);
10746 
10747 		elink_848xx_set_led(cb, phy);
10748 		break;
10749 	}
10750 }
10751 
elink_848xx_cmn_config_init(struct elink_phy * phy,struct elink_params * params,struct elink_vars * vars)10752 static elink_status_t elink_848xx_cmn_config_init(struct elink_phy *phy,
10753 				       struct elink_params *params,
10754 				       struct elink_vars *vars)
10755 {
10756 	struct elink_dev *cb = params->cb;
10757 	u16 autoneg_val, an_1000_val, an_10_100_val;
10758 
10759 	elink_848xx_specific_func(phy, params, ELINK_PHY_INIT);
10760 	elink_cl45_write(cb, phy,
10761 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 0x0000);
10762 
10763 	/* set 1000 speed advertisement */
10764 	elink_cl45_read(cb, phy,
10765 			MDIO_AN_DEVAD, MDIO_AN_REG_8481_1000T_CTRL,
10766 			&an_1000_val);
10767 
10768 	elink_ext_phy_set_pause(params, phy, vars);
10769 	elink_cl45_read(cb, phy,
10770 			MDIO_AN_DEVAD,
10771 			MDIO_AN_REG_8481_LEGACY_AN_ADV,
10772 			&an_10_100_val);
10773 	elink_cl45_read(cb, phy,
10774 			MDIO_AN_DEVAD, MDIO_AN_REG_8481_LEGACY_MII_CTRL,
10775 			&autoneg_val);
10776 	/* Disable forced speed */
10777 	autoneg_val &= ~((1<<6) | (1<<8) | (1<<9) | (1<<12) | (1<<13));
10778 	an_10_100_val &= ~((1<<5) | (1<<6) | (1<<7) | (1<<8));
10779 
10780 	if (((phy->req_line_speed == ELINK_SPEED_AUTO_NEG) &&
10781 	     (phy->speed_cap_mask &
10782 	     PORT_HW_CFG_SPEED_CAPABILITY_D0_1G)) ||
10783 	    (phy->req_line_speed == ELINK_SPEED_1000)) {
10784 		an_1000_val |= (1<<8);
10785 		autoneg_val |= (1<<9 | 1<<12);
10786 		if (phy->req_duplex == DUPLEX_FULL)
10787 			an_1000_val |= (1<<9);
10788 		ELINK_DEBUG_P0(cb, "Advertising 1G\n");
10789 	} else
10790 		an_1000_val &= ~((1<<8) | (1<<9));
10791 
10792 	elink_cl45_write(cb, phy,
10793 			 MDIO_AN_DEVAD, MDIO_AN_REG_8481_1000T_CTRL,
10794 			 an_1000_val);
10795 
10796 	/* Set 10/100 speed advertisement */
10797 	if (phy->req_line_speed == ELINK_SPEED_AUTO_NEG) {
10798 		if (phy->speed_cap_mask &
10799 		    PORT_HW_CFG_SPEED_CAPABILITY_D0_100M_FULL) {
10800 			/* Enable autoneg and restart autoneg for legacy speeds
10801 			 */
10802 			autoneg_val |= (1<<9 | 1<<12);
10803 			an_10_100_val |= (1<<8);
10804 			ELINK_DEBUG_P0(cb, "Advertising 100M-FD\n");
10805 		}
10806 
10807 		if (phy->speed_cap_mask &
10808 		    PORT_HW_CFG_SPEED_CAPABILITY_D0_100M_HALF) {
10809 			/* Enable autoneg and restart autoneg for legacy speeds
10810 			 */
10811 			autoneg_val |= (1<<9 | 1<<12);
10812 			an_10_100_val |= (1<<7);
10813 			ELINK_DEBUG_P0(cb, "Advertising 100M-HD\n");
10814 		}
10815 
10816 		if ((phy->speed_cap_mask &
10817 		     PORT_HW_CFG_SPEED_CAPABILITY_D0_10M_FULL) &&
10818 		    (phy->supported & ELINK_SUPPORTED_10baseT_Full)) {
10819 			an_10_100_val |= (1<<6);
10820 			autoneg_val |= (1<<9 | 1<<12);
10821 			ELINK_DEBUG_P0(cb, "Advertising 10M-FD\n");
10822 		}
10823 
10824 		if ((phy->speed_cap_mask &
10825 		     PORT_HW_CFG_SPEED_CAPABILITY_D0_10M_HALF) &&
10826 		    (phy->supported & ELINK_SUPPORTED_10baseT_Half)) {
10827 			an_10_100_val |= (1<<5);
10828 			autoneg_val |= (1<<9 | 1<<12);
10829 			ELINK_DEBUG_P0(cb, "Advertising 10M-HD\n");
10830 		}
10831 	}
10832 
10833 	/* Only 10/100 are allowed to work in FORCE mode */
10834 	if ((phy->req_line_speed == ELINK_SPEED_100) &&
10835 	    (phy->supported &
10836 	     (ELINK_SUPPORTED_100baseT_Half |
10837 	      ELINK_SUPPORTED_100baseT_Full))) {
10838 		autoneg_val |= (1<<13);
10839 		/* Enabled AUTO-MDIX when autoneg is disabled */
10840 		elink_cl45_write(cb, phy,
10841 				 MDIO_AN_DEVAD, MDIO_AN_REG_8481_AUX_CTRL,
10842 				 (1<<15 | 1<<9 | 7<<0));
10843 		/* The PHY needs this set even for forced link. */
10844 		an_10_100_val |= (1<<8) | (1<<7);
10845 		ELINK_DEBUG_P0(cb, "Setting 100M force\n");
10846 	}
10847 	if ((phy->req_line_speed == ELINK_SPEED_10) &&
10848 	    (phy->supported &
10849 	     (ELINK_SUPPORTED_10baseT_Half |
10850 	      ELINK_SUPPORTED_10baseT_Full))) {
10851 		/* Enabled AUTO-MDIX when autoneg is disabled */
10852 		elink_cl45_write(cb, phy,
10853 				 MDIO_AN_DEVAD, MDIO_AN_REG_8481_AUX_CTRL,
10854 				 (1<<15 | 1<<9 | 7<<0));
10855 		ELINK_DEBUG_P0(cb, "Setting 10M force\n");
10856 	}
10857 
10858 	elink_cl45_write(cb, phy,
10859 			 MDIO_AN_DEVAD, MDIO_AN_REG_8481_LEGACY_AN_ADV,
10860 			 an_10_100_val);
10861 
10862 	if (phy->req_duplex == DUPLEX_FULL)
10863 		autoneg_val |= (1<<8);
10864 
10865 	/* Always write this if this is not 84833/4.
10866 	 * For 84833/4, write it only when it's a forced speed.
10867 	 */
10868 	if (((phy->type != PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833) &&
10869 	     (phy->type != PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84834)) ||
10870 	    ((autoneg_val & (1<<12)) == 0))
10871 		elink_cl45_write(cb, phy,
10872 			 MDIO_AN_DEVAD,
10873 			 MDIO_AN_REG_8481_LEGACY_MII_CTRL, autoneg_val);
10874 
10875 	if (((phy->req_line_speed == ELINK_SPEED_AUTO_NEG) &&
10876 	    (phy->speed_cap_mask &
10877 	     PORT_HW_CFG_SPEED_CAPABILITY_D0_10G)) ||
10878 		(phy->req_line_speed == ELINK_SPEED_10000)) {
10879 			ELINK_DEBUG_P0(cb, "Advertising 10G\n");
10880 			/* Restart autoneg for 10G*/
10881 
10882 			elink_cl45_read_or_write(
10883 				cb, phy,
10884 				MDIO_AN_DEVAD,
10885 				MDIO_AN_REG_8481_10GBASE_T_AN_CTRL,
10886 				0x1000);
10887 			elink_cl45_write(cb, phy,
10888 					 MDIO_AN_DEVAD, MDIO_AN_REG_CTRL,
10889 					 0x3200);
10890 	} else
10891 		elink_cl45_write(cb, phy,
10892 				 MDIO_AN_DEVAD,
10893 				 MDIO_AN_REG_8481_10GBASE_T_AN_CTRL,
10894 				 1);
10895 
10896 	return ELINK_STATUS_OK;
10897 }
10898 #endif // EXCLUDE_NON_COMMON_INIT
10899 #endif // #if !defined(EXCLUDE_BCM8481) || !defined(EXCLUDE_BCM84833)
10900 
10901 #ifndef EXCLUDE_BCM8481
10902 #ifndef EXCLUDE_NON_COMMON_INIT
10903 static elink_status_t
elink_8481_config_init(struct elink_phy * phy,struct elink_params * params,struct elink_vars * vars)10904 elink_8481_config_init(struct elink_phy *phy, struct elink_params *params,
10905     struct elink_vars *vars)
10906 {
10907 	struct elink_dev *cb = params->cb;
10908 	/* Restore normal power mode*/
10909 	ELINK_SET_GPIO(cb, MISC_REGISTERS_GPIO_2,
10910 		       MISC_REGISTERS_GPIO_OUTPUT_HIGH, params->port);
10911 
10912 	/* HW reset */
10913 	elink_ext_phy_hw_reset(cb, params->port);
10914 	elink_wait_reset_complete(cb, phy, params);
10915 
10916 	elink_cl45_write(cb, phy, MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 1<<15);
10917 	return elink_848xx_cmn_config_init(phy, params, vars);
10918 }
10919 #endif // #ifndef EXCLUDE_NON_COMMON_INIT
10920 #endif // EXCLUDE_BCM8481
10921 
10922 #ifndef EXCLUDE_BCM84833
10923 #define PHY84833_CMDHDLR_WAIT 300
10924 #define PHY84833_CMDHDLR_MAX_ARGS 5
elink_84833_cmd_hdlr(struct elink_phy * phy,struct elink_params * params,u16 fw_cmd,u16 cmd_args[],int argc)10925 static elink_status_t elink_84833_cmd_hdlr(struct elink_phy *phy,
10926 				struct elink_params *params, u16 fw_cmd,
10927 				u16 cmd_args[], int argc)
10928 {
10929 	int idx;
10930 	u16 val;
10931 	struct elink_dev *cb = params->cb;
10932 	/* Write CMD_OPEN_OVERRIDE to STATUS reg */
10933 	elink_cl45_write(cb, phy, MDIO_CTL_DEVAD,
10934 			MDIO_84833_CMD_HDLR_STATUS,
10935 			PHY84833_STATUS_CMD_OPEN_OVERRIDE);
10936 	for (idx = 0; idx < PHY84833_CMDHDLR_WAIT; idx++) {
10937 		elink_cl45_read(cb, phy, MDIO_CTL_DEVAD,
10938 				MDIO_84833_CMD_HDLR_STATUS, &val);
10939 		if (val == PHY84833_STATUS_CMD_OPEN_FOR_CMDS)
10940 			break;
10941 		MSLEEP(cb, 1);
10942 	}
10943 	if (idx >= PHY84833_CMDHDLR_WAIT) {
10944 		ELINK_DEBUG_P0(cb, "FW cmd: FW not ready.\n");
10945 		return ELINK_STATUS_ERROR;
10946 	}
10947 
10948 	/* Prepare argument(s) and issue command */
10949 	for (idx = 0; idx < argc; idx++) {
10950 		elink_cl45_write(cb, phy, MDIO_CTL_DEVAD,
10951 				MDIO_84833_CMD_HDLR_DATA1 + idx,
10952 				cmd_args[idx]);
10953 	}
10954 	elink_cl45_write(cb, phy, MDIO_CTL_DEVAD,
10955 			MDIO_84833_CMD_HDLR_COMMAND, fw_cmd);
10956 	for (idx = 0; idx < PHY84833_CMDHDLR_WAIT; idx++) {
10957 		elink_cl45_read(cb, phy, MDIO_CTL_DEVAD,
10958 				MDIO_84833_CMD_HDLR_STATUS, &val);
10959 		if ((val == PHY84833_STATUS_CMD_COMPLETE_PASS) ||
10960 			(val == PHY84833_STATUS_CMD_COMPLETE_ERROR))
10961 			break;
10962 		MSLEEP(cb, 1);
10963 	}
10964 	if ((idx >= PHY84833_CMDHDLR_WAIT) ||
10965 		(val == PHY84833_STATUS_CMD_COMPLETE_ERROR)) {
10966 		ELINK_DEBUG_P0(cb, "FW cmd failed.\n");
10967 		return ELINK_STATUS_ERROR;
10968 	}
10969 	/* Gather returning data */
10970 	for (idx = 0; idx < argc; idx++) {
10971 		elink_cl45_read(cb, phy, MDIO_CTL_DEVAD,
10972 				MDIO_84833_CMD_HDLR_DATA1 + idx,
10973 				&cmd_args[idx]);
10974 	}
10975 	elink_cl45_write(cb, phy, MDIO_CTL_DEVAD,
10976 			MDIO_84833_CMD_HDLR_STATUS,
10977 			PHY84833_STATUS_CMD_CLEAR_COMPLETE);
10978 	return ELINK_STATUS_OK;
10979 }
10980 
10981 #ifndef EXCLUDE_NON_COMMON_INIT
elink_84833_pair_swap_cfg(struct elink_phy * phy,struct elink_params * params,struct elink_vars * vars)10982 static elink_status_t elink_84833_pair_swap_cfg(struct elink_phy *phy,
10983 				   struct elink_params *params,
10984 				   struct elink_vars *vars)
10985 {
10986 	u32 pair_swap;
10987 	u16 data[PHY84833_CMDHDLR_MAX_ARGS];
10988 	elink_status_t status;
10989 	struct elink_dev *cb = params->cb;
10990 
10991 	/* Check for configuration. */
10992 	pair_swap = REG_RD(cb, params->shmem_base +
10993 			   OFFSETOF(struct shmem_region,
10994 			dev_info.port_hw_config[params->port].xgbt_phy_cfg)) &
10995 		PORT_HW_CFG_RJ45_PAIR_SWAP_MASK;
10996 
10997 	if (pair_swap == 0)
10998 		return ELINK_STATUS_OK;
10999 
11000 	/* Only the second argument is used for this command */
11001 	data[1] = (u16)pair_swap;
11002 
11003 	status = elink_84833_cmd_hdlr(phy, params,
11004 		PHY84833_CMD_SET_PAIR_SWAP, data, PHY84833_CMDHDLR_MAX_ARGS);
11005 	if (status == ELINK_STATUS_OK)
11006 		ELINK_DEBUG_P1(cb, "Pairswap OK, val=0x%x\n", data[1]);
11007 
11008 	return status;
11009 }
11010 #endif // #ifndef EXCLUDE_NON_COMMON_INIT
11011 
elink_84833_get_reset_gpios(struct elink_dev * cb,u32 shmem_base_path[],u32 chip_id)11012 static u8 elink_84833_get_reset_gpios(struct elink_dev *cb,
11013 				      u32 shmem_base_path[],
11014 				      u32 chip_id)
11015 {
11016 	u32 reset_pin[2];
11017 	u32 idx;
11018 	u8 reset_gpios;
11019 	if (CHIP_IS_E3(chip_id)) {
11020 		/* Assume that these will be GPIOs, not EPIOs. */
11021 		for (idx = 0; idx < 2; idx++) {
11022 			/* Map config param to register bit. */
11023 			reset_pin[idx] = REG_RD(cb, shmem_base_path[idx] +
11024 				OFFSETOF(struct shmem_region,
11025 				dev_info.port_hw_config[0].e3_cmn_pin_cfg));
11026 			reset_pin[idx] = (reset_pin[idx] &
11027 				PORT_HW_CFG_E3_PHY_RESET_MASK) >>
11028 				PORT_HW_CFG_E3_PHY_RESET_SHIFT;
11029 			reset_pin[idx] -= PIN_CFG_GPIO0_P0;
11030 			reset_pin[idx] = (1 << reset_pin[idx]);
11031 		}
11032 		reset_gpios = (u8)(reset_pin[0] | reset_pin[1]);
11033 	} else {
11034 		/* E2, look from diff place of shmem. */
11035 		for (idx = 0; idx < 2; idx++) {
11036 			reset_pin[idx] = REG_RD(cb, shmem_base_path[idx] +
11037 				OFFSETOF(struct shmem_region,
11038 				dev_info.port_hw_config[0].default_cfg));
11039 			reset_pin[idx] &= PORT_HW_CFG_EXT_PHY_GPIO_RST_MASK;
11040 			reset_pin[idx] -= PORT_HW_CFG_EXT_PHY_GPIO_RST_GPIO0_P0;
11041 			reset_pin[idx] >>= PORT_HW_CFG_EXT_PHY_GPIO_RST_SHIFT;
11042 			reset_pin[idx] = (1 << reset_pin[idx]);
11043 		}
11044 		reset_gpios = (u8)(reset_pin[0] | reset_pin[1]);
11045 	}
11046 
11047 	return reset_gpios;
11048 }
11049 
11050 #ifndef EXCLUDE_NON_COMMON_INIT
11051 static void
elink_84833_hw_reset_phy(struct elink_phy * phy,struct elink_params * params)11052 elink_84833_hw_reset_phy(struct elink_phy *phy,
11053 				struct elink_params *params)
11054 {
11055 	struct elink_dev *cb = params->cb;
11056 	u8 reset_gpios;
11057 	u32 other_shmem_base_addr = REG_RD(cb, params->shmem2_base +
11058 				OFFSETOF(struct shmem2_region,
11059 				other_shmem_base_addr));
11060 
11061 	u32 shmem_base_path[2];
11062 
11063 	/* Work around for 84833 LED failure inside RESET status */
11064 	elink_cl45_write(cb, phy, MDIO_AN_DEVAD,
11065 		MDIO_AN_REG_8481_LEGACY_MII_CTRL,
11066 		MDIO_AN_REG_8481_MII_CTRL_FORCE_1G);
11067 	elink_cl45_write(cb, phy, MDIO_AN_DEVAD,
11068 		MDIO_AN_REG_8481_1G_100T_EXT_CTRL,
11069 		MIDO_AN_REG_8481_EXT_CTRL_FORCE_LEDS_OFF);
11070 
11071 	shmem_base_path[0] = params->shmem_base;
11072 	shmem_base_path[1] = other_shmem_base_addr;
11073 
11074 	reset_gpios = elink_84833_get_reset_gpios(cb, shmem_base_path,
11075 						  params->chip_id);
11076 
11077 #ifndef EDEBUG
11078 	ELINK_SET_MULT_GPIO(cb, reset_gpios, MISC_REGISTERS_GPIO_OUTPUT_LOW);
11079 	USLEEP(cb, 10);
11080 	ELINK_DEBUG_P1(cb, "84833 hw reset on pin values 0x%x\n",
11081 		reset_gpios);
11082 #endif // EDEBUG
11083 }
11084 #endif // EXCLUDE_NON_COMMON_INIT
11085 #endif // #ifndef EXCLUDE_BCM84833
11086 
11087 #ifndef EXCLUDE_NON_COMMON_INIT
11088 #ifndef EXCLUDE_WARPCORE
elink_8483x_disable_eee(struct elink_phy * phy,struct elink_params * params,struct elink_vars * vars)11089 static elink_status_t elink_8483x_disable_eee(struct elink_phy *phy,
11090 				   struct elink_params *params,
11091 				   struct elink_vars *vars)
11092 {
11093 	elink_status_t rc;
11094 #if defined(ELINK_DEBUG)
11095 	struct elink_dev *cb = params->cb;
11096 #endif
11097 	u16 cmd_args = 0;
11098 
11099 	ELINK_DEBUG_P0(cb, "Don't Advertise 10GBase-T EEE\n");
11100 
11101 	/* Prevent Phy from working in EEE and advertising it */
11102 	rc = elink_84833_cmd_hdlr(phy, params,
11103 		PHY84833_CMD_SET_EEE_MODE, &cmd_args, 1);
11104 	if (rc != ELINK_STATUS_OK) {
11105 		ELINK_DEBUG_P0(cb, "EEE disable failed.\n");
11106 		return rc;
11107 	}
11108 
11109 	return elink_eee_disable(phy, params, vars);
11110 }
11111 
elink_8483x_enable_eee(struct elink_phy * phy,struct elink_params * params,struct elink_vars * vars)11112 static elink_status_t elink_8483x_enable_eee(struct elink_phy *phy,
11113 				   struct elink_params *params,
11114 				   struct elink_vars *vars)
11115 {
11116 	elink_status_t rc;
11117 #ifdef ELINK_DEBUG
11118 	struct elink_dev *cb = params->cb;
11119 #endif
11120 	u16 cmd_args = 1;
11121 
11122 	rc = elink_84833_cmd_hdlr(phy, params,
11123 		PHY84833_CMD_SET_EEE_MODE, &cmd_args, 1);
11124 	if (rc != ELINK_STATUS_OK) {
11125 		ELINK_DEBUG_P0(cb, "EEE enable failed.\n");
11126 		return rc;
11127 	}
11128 
11129 	return elink_eee_advertise(phy, params, vars, SHMEM_EEE_10G_ADV);
11130 }
11131 #endif /* #ifndef EXCLUDE_WARPCORE */
11132 
11133 #if !defined(EXCLUDE_BCM8481) || !defined(EXCLUDE_BCM84833)
11134 #define PHY84833_CONSTANT_LATENCY 1193
11135 static elink_status_t
elink_848x3_config_init(struct elink_phy * phy,struct elink_params * params,struct elink_vars * vars)11136 elink_848x3_config_init(struct elink_phy *phy, struct elink_params *params,
11137     struct elink_vars *vars)
11138 {
11139 	struct elink_dev *cb = params->cb;
11140 	u8 port, initialize = 1;
11141 	u16 val;
11142 	u32 actual_phy_selection;
11143 #ifndef EXCLUDE_BCM84833
11144 	u16 cmd_args[PHY84833_CMDHDLR_MAX_ARGS];
11145 #endif // EXCLUDE_BCM84833
11146 	elink_status_t rc = ELINK_STATUS_OK;
11147 
11148 	MSLEEP(cb, 1);
11149 
11150 	if (!(CHIP_IS_E1X(params->chip_id)))
11151 		port = PATH_ID(cb);
11152 	else
11153 		port = params->port;
11154 
11155 	if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84823) {
11156 		ELINK_SET_GPIO(cb, MISC_REGISTERS_GPIO_3,
11157 			       MISC_REGISTERS_GPIO_OUTPUT_HIGH,
11158 			       port);
11159 	} else {
11160 		/* MDIO reset */
11161 		elink_cl45_write(cb, phy,
11162 				MDIO_PMA_DEVAD,
11163 				MDIO_PMA_REG_CTRL, 0x8000);
11164 	}
11165 
11166 	elink_wait_reset_complete(cb, phy, params);
11167 
11168 	/* Wait for GPHY to come out of reset */
11169 	MSLEEP(cb, 50);
11170 #ifndef EXCLUDE_BCM84833
11171 	if ((phy->type != PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833) &&
11172 	    (phy->type != PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84834)) {
11173 #endif // EXCLUDE_BCM84833
11174 #ifndef EXCLUDE_BCM8481
11175 		/* BCM84823 requires that XGXS links up first @ 10G for normal
11176 		 * behavior.
11177 		 */
11178 		u16 temp;
11179 		temp = vars->line_speed;
11180 		vars->line_speed = ELINK_SPEED_10000;
11181 		elink_set_autoneg(&params->phy[ELINK_INT_PHY], params, vars, 0);
11182 		elink_program_serdes(&params->phy[ELINK_INT_PHY], params, vars);
11183 		vars->line_speed = temp;
11184 #endif // EXCLUDE_BCM8481
11185 #ifndef EXCLUDE_BCM84833
11186 	}
11187 #endif	/* Set dual-media configuration according to configuration */
11188 
11189 	elink_cl45_read(cb, phy, MDIO_CTL_DEVAD,
11190 			MDIO_CTL_REG_84823_MEDIA, &val);
11191 	val &= ~(MDIO_CTL_REG_84823_MEDIA_MAC_MASK |
11192 		 MDIO_CTL_REG_84823_MEDIA_LINE_MASK |
11193 		 MDIO_CTL_REG_84823_MEDIA_COPPER_CORE_DOWN |
11194 		 MDIO_CTL_REG_84823_MEDIA_PRIORITY_MASK |
11195 		 MDIO_CTL_REG_84823_MEDIA_FIBER_1G);
11196 
11197 	if (CHIP_IS_E3(params->chip_id)) {
11198 		val &= ~(MDIO_CTL_REG_84823_MEDIA_MAC_MASK |
11199 			 MDIO_CTL_REG_84823_MEDIA_LINE_MASK);
11200 	} else {
11201 		val |= (MDIO_CTL_REG_84823_CTRL_MAC_XFI |
11202 			MDIO_CTL_REG_84823_MEDIA_LINE_XAUI_L);
11203 	}
11204 
11205 	actual_phy_selection = elink_phy_selection(params);
11206 
11207 	switch (actual_phy_selection) {
11208 	case PORT_HW_CFG_PHY_SELECTION_HARDWARE_DEFAULT:
11209 		/* Do nothing. Essentially this is like the priority copper */
11210 		break;
11211 	case PORT_HW_CFG_PHY_SELECTION_FIRST_PHY_PRIORITY:
11212 		val |= MDIO_CTL_REG_84823_MEDIA_PRIORITY_COPPER;
11213 		break;
11214 	case PORT_HW_CFG_PHY_SELECTION_SECOND_PHY_PRIORITY:
11215 		val |= MDIO_CTL_REG_84823_MEDIA_PRIORITY_FIBER;
11216 		break;
11217 	case PORT_HW_CFG_PHY_SELECTION_FIRST_PHY:
11218 		/* Do nothing here. The first PHY won't be initialized at all */
11219 		break;
11220 	case PORT_HW_CFG_PHY_SELECTION_SECOND_PHY:
11221 		val |= MDIO_CTL_REG_84823_MEDIA_COPPER_CORE_DOWN;
11222 		initialize = 0;
11223 		break;
11224 	}
11225 	if (params->phy[ELINK_EXT_PHY2].req_line_speed == ELINK_SPEED_1000)
11226 		val |= MDIO_CTL_REG_84823_MEDIA_FIBER_1G;
11227 
11228 	elink_cl45_write(cb, phy, MDIO_CTL_DEVAD,
11229 			 MDIO_CTL_REG_84823_MEDIA, val);
11230 	ELINK_DEBUG_P2(cb, "Multi_phy config = 0x%x, Media control = 0x%x\n",
11231 		   params->multi_phy_config, val);
11232 
11233 #ifndef EXCLUDE_BCM84833
11234 	if ((phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833) ||
11235 	    (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84834)) {
11236 		elink_84833_pair_swap_cfg(phy, params, vars);
11237 
11238 		/* Keep AutogrEEEn disabled. */
11239 		cmd_args[0] = 0x0;
11240 		cmd_args[1] = 0x0;
11241 		cmd_args[2] = PHY84833_CONSTANT_LATENCY + 1;
11242 		cmd_args[3] = PHY84833_CONSTANT_LATENCY;
11243 		rc = elink_84833_cmd_hdlr(phy, params,
11244 			PHY84833_CMD_SET_EEE_MODE, cmd_args,
11245 			PHY84833_CMDHDLR_MAX_ARGS);
11246 		if (rc != ELINK_STATUS_OK)
11247 			ELINK_DEBUG_P0(cb, "Cfg AutogrEEEn failed.\n");
11248 	}
11249 #endif // #ifndef EXCLUDE_BCM84833
11250 	if (initialize)
11251 		rc = elink_848xx_cmn_config_init(phy, params, vars);
11252 #ifdef ELINK_ENHANCEMENTS
11253 	else
11254 		elink_save_848xx_spirom_version(phy, cb, params->port);
11255 #endif // ELINK_ENHANCEMENTS
11256 	/* 84833 PHY has a better feature and doesn't need to support this. */
11257 #ifndef EXCLUDE_BCM8481
11258 	if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84823) {
11259 		u32 cms_enable = REG_RD(cb, params->shmem_base +
11260 			OFFSETOF(struct shmem_region,
11261 			dev_info.port_hw_config[params->port].default_cfg)) &
11262 			PORT_HW_CFG_ENABLE_CMS_MASK;
11263 
11264 		elink_cl45_read(cb, phy, MDIO_CTL_DEVAD,
11265 				MDIO_CTL_REG_84823_USER_CTRL_REG, &val);
11266 		if (cms_enable)
11267 			val |= MDIO_CTL_REG_84823_USER_CTRL_CMS;
11268 		else
11269 			val &= ~MDIO_CTL_REG_84823_USER_CTRL_CMS;
11270 		elink_cl45_write(cb, phy, MDIO_CTL_DEVAD,
11271 				 MDIO_CTL_REG_84823_USER_CTRL_REG, val);
11272 	}
11273 #endif /* EXCLUDE_BCM8481 */
11274 
11275 #ifndef EXCLUDE_WARPCORE
11276 	elink_cl45_read(cb, phy, MDIO_CTL_DEVAD,
11277 			MDIO_84833_TOP_CFG_FW_REV, &val);
11278 
11279 	/* Configure EEE support */
11280 	if ((val >= MDIO_84833_TOP_CFG_FW_EEE) &&
11281 	    (val != MDIO_84833_TOP_CFG_FW_NO_EEE) &&
11282 	    elink_eee_has_cap(params)) {
11283 		rc = elink_eee_initial_config(params, vars, SHMEM_EEE_10G_ADV);
11284 		if (rc != ELINK_STATUS_OK) {
11285 			ELINK_DEBUG_P0(cb, "Failed to configure EEE timers\n");
11286 			elink_8483x_disable_eee(phy, params, vars);
11287 			return rc;
11288 		}
11289 
11290 		if ((phy->req_duplex == DUPLEX_FULL) &&
11291 		    (params->eee_mode & ELINK_EEE_MODE_ADV_LPI) &&
11292 		    (elink_eee_calc_timer(params) ||
11293 		     !(params->eee_mode & ELINK_EEE_MODE_ENABLE_LPI)))
11294 			rc = elink_8483x_enable_eee(phy, params, vars);
11295 		else
11296 			rc = elink_8483x_disable_eee(phy, params, vars);
11297 		if (rc != ELINK_STATUS_OK) {
11298 			ELINK_DEBUG_P0(cb, "Failed to set EEE advertisement\n");
11299 			return rc;
11300 		}
11301 	} else {
11302 		vars->eee_status &= ~SHMEM_EEE_SUPPORTED_MASK;
11303 	}
11304 #endif /* #ifndef EXCLUDE_WARPCORE */
11305 
11306 #ifndef EXCLUDE_BCM84833
11307 	if ((phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833) ||
11308 	    (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84834)) {
11309 		/* Bring PHY out of super isolate mode as the final step. */
11310 		elink_cl45_read_and_write(cb, phy,
11311 					  MDIO_CTL_DEVAD,
11312 					  MDIO_84833_TOP_CFG_XGPHY_STRAP1,
11313 					  (u16)~MDIO_84833_SUPER_ISOLATE);
11314 	}
11315 #endif /* #ifndef EXCLUDE_BCM84833 */
11316 	return rc;
11317 }
11318 
11319 static elink_status_t
elink_848xx_read_status(struct elink_phy * phy,struct elink_params * params,struct elink_vars * vars)11320 elink_848xx_read_status(struct elink_phy *phy, struct elink_params *params,
11321     struct elink_vars *vars)
11322 {
11323 	struct elink_dev *cb = params->cb;
11324 	u16 val, val1, val2;
11325 	u8 link_up = 0;
11326 
11327 
11328 	/* Check 10G-BaseT link status */
11329 	/* Check PMD signal ok */
11330 	elink_cl45_read(cb, phy,
11331 			MDIO_AN_DEVAD, 0xFFFA, &val1);
11332 	elink_cl45_read(cb, phy,
11333 			MDIO_PMA_DEVAD, MDIO_PMA_REG_8481_PMD_SIGNAL,
11334 			&val2);
11335 	ELINK_DEBUG_P1(cb, "BCM848xx: PMD_SIGNAL 1.a811 = 0x%x\n", val2);
11336 
11337 	/* Check link 10G */
11338 	if (val2 & (1<<11)) {
11339 		vars->line_speed = ELINK_SPEED_10000;
11340 		vars->duplex = DUPLEX_FULL;
11341 		link_up = 1;
11342 		elink_ext_phy_10G_an_resolve(cb, phy, vars);
11343 	} else { /* Check Legacy speed link */
11344 		u16 legacy_status, legacy_speed;
11345 
11346 		/* Enable expansion register 0x42 (Operation mode status) */
11347 		elink_cl45_write(cb, phy,
11348 				 MDIO_AN_DEVAD,
11349 				 MDIO_AN_REG_8481_EXPANSION_REG_ACCESS, 0xf42);
11350 
11351 		/* Get legacy speed operation status */
11352 		elink_cl45_read(cb, phy,
11353 				MDIO_AN_DEVAD,
11354 				MDIO_AN_REG_8481_EXPANSION_REG_RD_RW,
11355 				&legacy_status);
11356 
11357 		ELINK_DEBUG_P1(cb, "Legacy speed status = 0x%x\n",
11358 		   legacy_status);
11359 		link_up = ((legacy_status & (1<<11)) == (1<<11));
11360 		legacy_speed = (legacy_status & (3<<9));
11361 		if (legacy_speed == (0<<9))
11362 			vars->line_speed = ELINK_SPEED_10;
11363 		else if (legacy_speed == (1<<9))
11364 			vars->line_speed = ELINK_SPEED_100;
11365 		else if (legacy_speed == (2<<9))
11366 			vars->line_speed = ELINK_SPEED_1000;
11367 		else { /* Should not happen: Treat as link down */
11368 			vars->line_speed = 0;
11369 			link_up = 0;
11370 		}
11371 
11372 #ifndef BNX2X_UPSTREAM /* ! BNX2X_UPSTREAM */
11373 		if (params->feature_config_flags &
11374 			ELINK_FEATURE_CONFIG_IEEE_PHY_TEST) {
11375 			u16 mii_ctrl;
11376 
11377 			elink_cl45_read(cb, phy,
11378 					MDIO_AN_DEVAD,
11379 					MDIO_AN_REG_8481_LEGACY_MII_CTRL,
11380 					&mii_ctrl);
11381 			/* For IEEE testing, check for a fake link. */
11382 			link_up |= ((mii_ctrl & 0x3040) == 0x40);
11383 		}
11384 #endif
11385 
11386 		if (link_up) {
11387 			if (legacy_status & (1<<8))
11388 				vars->duplex = DUPLEX_FULL;
11389 			else
11390 				vars->duplex = DUPLEX_HALF;
11391 
11392 			ELINK_DEBUG_P2(cb,
11393 			   "Link is up in %dMbps, is_duplex_full= %d\n",
11394 			   vars->line_speed,
11395 			   (vars->duplex == DUPLEX_FULL));
11396 			/* Check legacy speed AN resolution */
11397 			elink_cl45_read(cb, phy,
11398 					MDIO_AN_DEVAD,
11399 					MDIO_AN_REG_8481_LEGACY_MII_STATUS,
11400 					&val);
11401 			if (val & (1<<5))
11402 				vars->link_status |=
11403 					LINK_STATUS_AUTO_NEGOTIATE_COMPLETE;
11404 			elink_cl45_read(cb, phy,
11405 					MDIO_AN_DEVAD,
11406 					MDIO_AN_REG_8481_LEGACY_AN_EXPANSION,
11407 					&val);
11408 			if ((val & (1<<0)) == 0)
11409 				vars->link_status |=
11410 					LINK_STATUS_PARALLEL_DETECTION_USED;
11411 		}
11412 	}
11413 	if (link_up) {
11414 		ELINK_DEBUG_P1(cb, "BCM848x3: link speed is %d\n",
11415 			   vars->line_speed);
11416 		elink_ext_phy_resolve_fc(phy, params, vars);
11417 
11418 		/* Read LP advertised speeds */
11419 		elink_cl45_read(cb, phy, MDIO_AN_DEVAD,
11420 				MDIO_AN_REG_CL37_FC_LP, &val);
11421 		if (val & (1<<5))
11422 			vars->link_status |=
11423 				LINK_STATUS_LINK_PARTNER_10THD_CAPABLE;
11424 		if (val & (1<<6))
11425 			vars->link_status |=
11426 				LINK_STATUS_LINK_PARTNER_10TFD_CAPABLE;
11427 		if (val & (1<<7))
11428 			vars->link_status |=
11429 				LINK_STATUS_LINK_PARTNER_100TXHD_CAPABLE;
11430 		if (val & (1<<8))
11431 			vars->link_status |=
11432 				LINK_STATUS_LINK_PARTNER_100TXFD_CAPABLE;
11433 		if (val & (1<<9))
11434 			vars->link_status |=
11435 				LINK_STATUS_LINK_PARTNER_100T4_CAPABLE;
11436 
11437 		elink_cl45_read(cb, phy, MDIO_AN_DEVAD,
11438 				MDIO_AN_REG_1000T_STATUS, &val);
11439 
11440 		if (val & (1<<10))
11441 			vars->link_status |=
11442 				LINK_STATUS_LINK_PARTNER_1000THD_CAPABLE;
11443 		if (val & (1<<11))
11444 			vars->link_status |=
11445 				LINK_STATUS_LINK_PARTNER_1000TFD_CAPABLE;
11446 
11447 		elink_cl45_read(cb, phy, MDIO_AN_DEVAD,
11448 				MDIO_AN_REG_MASTER_STATUS, &val);
11449 
11450 		if (val & (1<<11))
11451 			vars->link_status |=
11452 				LINK_STATUS_LINK_PARTNER_10GXFD_CAPABLE;
11453 
11454 #if (!defined EXCLUDE_BCM84833) && (!defined EXCLUDE_WARPCORE)
11455 		/* Determine if EEE was negotiated */
11456 		if ((phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833) ||
11457 		    (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84834))
11458 			elink_eee_an_resolve(phy, params, vars);
11459 #endif /* #ifndef EXCLUDE_WARPCORE */
11460 	}
11461 
11462 	return link_up;
11463 }
11464 
11465 static elink_status_t
elink_848xx_format_ver(u32 raw_ver,u8 * str,u16 * len)11466 elink_848xx_format_ver(u32 raw_ver, u8 *str, u16 *len)
11467 {
11468 	elink_status_t status = ELINK_STATUS_OK;
11469 #ifdef ELINK_ENHANCEMENTS
11470 	u32 spirom_ver;
11471 	spirom_ver = ((raw_ver & 0xF80) >> 7) << 16 | (raw_ver & 0x7F);
11472 	status = elink_format_ver(spirom_ver, str, len);
11473 #endif // ELINK_ENHANCEMENTS
11474 	return status;
11475 }
11476 
11477 #ifndef EXCLUDE_BCM8481
elink_8481_hw_reset(struct elink_phy * phy,struct elink_params * params)11478 static void elink_8481_hw_reset(struct elink_phy *phy,
11479 				struct elink_params *params)
11480 {
11481 	ELINK_SET_GPIO(params->cb, MISC_REGISTERS_GPIO_1,
11482 		       MISC_REGISTERS_GPIO_OUTPUT_LOW, 0);
11483 	ELINK_SET_GPIO(params->cb, MISC_REGISTERS_GPIO_1,
11484 		       MISC_REGISTERS_GPIO_OUTPUT_LOW, 1);
11485 }
11486 
elink_8481_link_reset(struct elink_phy * phy,struct elink_params * params)11487 static void elink_8481_link_reset(struct elink_phy *phy,
11488 					struct elink_params *params)
11489 {
11490 #ifndef EXCLUDE_LINK_RESET
11491 	elink_cl45_write(params->cb, phy,
11492 			 MDIO_AN_DEVAD, MDIO_AN_REG_CTRL, 0x0000);
11493 	elink_cl45_write(params->cb, phy,
11494 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 1);
11495 #endif // EXCLUDE_LINK_RESET
11496 }
11497 #endif // #ifndef EXCLUDE_8481
11498 
elink_848x3_link_reset(struct elink_phy * phy,struct elink_params * params)11499 static void elink_848x3_link_reset(struct elink_phy *phy,
11500 				   struct elink_params *params)
11501 {
11502 	struct elink_dev *cb = params->cb;
11503 	u8 port;
11504 	u16 val16;
11505 
11506 	if (!(CHIP_IS_E1X(params->chip_id)))
11507 		port = PATH_ID(cb);
11508 	else
11509 		port = params->port;
11510 
11511 	if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84823) {
11512 		ELINK_SET_GPIO(cb, MISC_REGISTERS_GPIO_3,
11513 			       MISC_REGISTERS_GPIO_OUTPUT_LOW,
11514 			       port);
11515 	} else {
11516 		elink_cl45_read(cb, phy,
11517 				MDIO_CTL_DEVAD,
11518 				MDIO_84833_TOP_CFG_XGPHY_STRAP1, &val16);
11519 		val16 |= MDIO_84833_SUPER_ISOLATE;
11520 		elink_cl45_write(cb, phy,
11521 				 MDIO_CTL_DEVAD,
11522 				 MDIO_84833_TOP_CFG_XGPHY_STRAP1, val16);
11523 	}
11524 }
11525 
elink_848xx_set_link_led(struct elink_phy * phy,struct elink_params * params,u8 mode)11526 static void elink_848xx_set_link_led(struct elink_phy *phy,
11527 				     struct elink_params *params, u8 mode)
11528 {
11529 	struct elink_dev *cb = params->cb;
11530 	u16 val;
11531 #ifndef ELINK_AUX_POWER
11532 	u8 port;
11533 
11534 	if (!(CHIP_IS_E1X(params->chip_id)))
11535 		port = PATH_ID(cb);
11536 	else
11537 		port = params->port;
11538 #endif
11539 	switch (mode) {
11540 	case ELINK_LED_MODE_OFF:
11541 
11542 		ELINK_DEBUG_P1(cb, "Port 0x%x: LED MODE OFF\n", port);
11543 
11544 		if ((params->hw_led_mode << SHARED_HW_CFG_LED_MODE_SHIFT) ==
11545 		    SHARED_HW_CFG_LED_EXTPHY1) {
11546 
11547 			/* Set LED masks */
11548 			elink_cl45_write(cb, phy,
11549 					MDIO_PMA_DEVAD,
11550 					MDIO_PMA_REG_8481_LED1_MASK,
11551 					0x0);
11552 
11553 			elink_cl45_write(cb, phy,
11554 					MDIO_PMA_DEVAD,
11555 					MDIO_PMA_REG_8481_LED2_MASK,
11556 					0x0);
11557 
11558 			elink_cl45_write(cb, phy,
11559 					MDIO_PMA_DEVAD,
11560 					MDIO_PMA_REG_8481_LED3_MASK,
11561 					0x0);
11562 
11563 			elink_cl45_write(cb, phy,
11564 					MDIO_PMA_DEVAD,
11565 					MDIO_PMA_REG_8481_LED5_MASK,
11566 					0x0);
11567 
11568 		} else {
11569 			elink_cl45_write(cb, phy,
11570 					 MDIO_PMA_DEVAD,
11571 					 MDIO_PMA_REG_8481_LED1_MASK,
11572 					 0x0);
11573 		}
11574 		break;
11575 	case ELINK_LED_MODE_FRONT_PANEL_OFF:
11576 
11577 		ELINK_DEBUG_P1(cb, "Port 0x%x: LED MODE FRONT PANEL OFF\n",
11578 		   port);
11579 
11580 		if ((params->hw_led_mode << SHARED_HW_CFG_LED_MODE_SHIFT) ==
11581 		    SHARED_HW_CFG_LED_EXTPHY1) {
11582 
11583 			/* Set LED masks */
11584 			elink_cl45_write(cb, phy,
11585 					 MDIO_PMA_DEVAD,
11586 					 MDIO_PMA_REG_8481_LED1_MASK,
11587 					 0x0);
11588 
11589 			elink_cl45_write(cb, phy,
11590 					 MDIO_PMA_DEVAD,
11591 					 MDIO_PMA_REG_8481_LED2_MASK,
11592 					 0x0);
11593 
11594 			elink_cl45_write(cb, phy,
11595 					 MDIO_PMA_DEVAD,
11596 					 MDIO_PMA_REG_8481_LED3_MASK,
11597 					 0x0);
11598 
11599 			elink_cl45_write(cb, phy,
11600 					 MDIO_PMA_DEVAD,
11601 					 MDIO_PMA_REG_8481_LED5_MASK,
11602 					 0x20);
11603 
11604 		} else {
11605 			elink_cl45_write(cb, phy,
11606 					 MDIO_PMA_DEVAD,
11607 					 MDIO_PMA_REG_8481_LED1_MASK,
11608 					 0x0);
11609 			if (phy->type ==
11610 			    PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84834) {
11611 				/* Disable MI_INT interrupt before setting LED4
11612 				 * source to constant off.
11613 				 */
11614 				if (REG_RD(cb, NIG_REG_MASK_INTERRUPT_PORT0 +
11615 					   params->port*4) &
11616 				    ELINK_NIG_MASK_MI_INT) {
11617 					params->link_flags |=
11618 					ELINK_LINK_FLAGS_INT_DISABLED;
11619 
11620 					elink_bits_dis(
11621 						cb,
11622 						NIG_REG_MASK_INTERRUPT_PORT0 +
11623 						params->port*4,
11624 						ELINK_NIG_MASK_MI_INT);
11625 				}
11626 				elink_cl45_write(cb, phy,
11627 						 MDIO_PMA_DEVAD,
11628 						 MDIO_PMA_REG_8481_SIGNAL_MASK,
11629 						 0x0);
11630 			}
11631 		}
11632 		break;
11633 	case ELINK_LED_MODE_ON:
11634 
11635 		ELINK_DEBUG_P1(cb, "Port 0x%x: LED MODE ON\n", port);
11636 
11637 		if ((params->hw_led_mode << SHARED_HW_CFG_LED_MODE_SHIFT) ==
11638 		    SHARED_HW_CFG_LED_EXTPHY1) {
11639 			/* Set control reg */
11640 			elink_cl45_read(cb, phy,
11641 					MDIO_PMA_DEVAD,
11642 					MDIO_PMA_REG_8481_LINK_SIGNAL,
11643 					&val);
11644 			val &= 0x8000;
11645 			val |= 0x2492;
11646 
11647 			elink_cl45_write(cb, phy,
11648 					 MDIO_PMA_DEVAD,
11649 					 MDIO_PMA_REG_8481_LINK_SIGNAL,
11650 					 val);
11651 
11652 			/* Set LED masks */
11653 			elink_cl45_write(cb, phy,
11654 					 MDIO_PMA_DEVAD,
11655 					 MDIO_PMA_REG_8481_LED1_MASK,
11656 					 0x0);
11657 
11658 			elink_cl45_write(cb, phy,
11659 					 MDIO_PMA_DEVAD,
11660 					 MDIO_PMA_REG_8481_LED2_MASK,
11661 					 0x20);
11662 
11663 			elink_cl45_write(cb, phy,
11664 					 MDIO_PMA_DEVAD,
11665 					 MDIO_PMA_REG_8481_LED3_MASK,
11666 					 0x20);
11667 
11668 			elink_cl45_write(cb, phy,
11669 					 MDIO_PMA_DEVAD,
11670 					 MDIO_PMA_REG_8481_LED5_MASK,
11671 					 0x0);
11672 		} else {
11673 			elink_cl45_write(cb, phy,
11674 					 MDIO_PMA_DEVAD,
11675 					 MDIO_PMA_REG_8481_LED1_MASK,
11676 					 0x20);
11677 			if (phy->type ==
11678 			    PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84834) {
11679 				/* Disable MI_INT interrupt before setting LED4
11680 				 * source to constant on.
11681 				 */
11682 				if (REG_RD(cb, NIG_REG_MASK_INTERRUPT_PORT0 +
11683 					   params->port*4) &
11684 				    ELINK_NIG_MASK_MI_INT) {
11685 					params->link_flags |=
11686 					ELINK_LINK_FLAGS_INT_DISABLED;
11687 
11688 					elink_bits_dis(
11689 						cb,
11690 						NIG_REG_MASK_INTERRUPT_PORT0 +
11691 						params->port*4,
11692 						ELINK_NIG_MASK_MI_INT);
11693 				}
11694 				elink_cl45_write(cb, phy,
11695 						 MDIO_PMA_DEVAD,
11696 						 MDIO_PMA_REG_8481_SIGNAL_MASK,
11697 						 0x20);
11698 			}
11699 		}
11700 		break;
11701 
11702 	case ELINK_LED_MODE_OPER:
11703 
11704 		ELINK_DEBUG_P1(cb, "Port 0x%x: LED MODE OPER\n", port);
11705 
11706 		if ((params->hw_led_mode << SHARED_HW_CFG_LED_MODE_SHIFT) ==
11707 		    SHARED_HW_CFG_LED_EXTPHY1) {
11708 
11709 			/* Set control reg */
11710 			elink_cl45_read(cb, phy,
11711 					MDIO_PMA_DEVAD,
11712 					MDIO_PMA_REG_8481_LINK_SIGNAL,
11713 					&val);
11714 
11715 			if (!((val &
11716 			       MDIO_PMA_REG_8481_LINK_SIGNAL_LED4_ENABLE_MASK)
11717 			  >> MDIO_PMA_REG_8481_LINK_SIGNAL_LED4_ENABLE_SHIFT)) {
11718 				ELINK_DEBUG_P0(cb, "Setting LINK_SIGNAL\n");
11719 				elink_cl45_write(cb, phy,
11720 						 MDIO_PMA_DEVAD,
11721 						 MDIO_PMA_REG_8481_LINK_SIGNAL,
11722 						 0xa492);
11723 			}
11724 
11725 			/* Set LED masks */
11726 			elink_cl45_write(cb, phy,
11727 					 MDIO_PMA_DEVAD,
11728 					 MDIO_PMA_REG_8481_LED1_MASK,
11729 					 0x10);
11730 
11731 			elink_cl45_write(cb, phy,
11732 					 MDIO_PMA_DEVAD,
11733 					 MDIO_PMA_REG_8481_LED2_MASK,
11734 					 0x80);
11735 
11736 			elink_cl45_write(cb, phy,
11737 					 MDIO_PMA_DEVAD,
11738 					 MDIO_PMA_REG_8481_LED3_MASK,
11739 					 0x98);
11740 
11741 			elink_cl45_write(cb, phy,
11742 					 MDIO_PMA_DEVAD,
11743 					 MDIO_PMA_REG_8481_LED5_MASK,
11744 					 0x40);
11745 
11746 		} else {
11747 			/* EXTPHY2 LED mode indicate that the 100M/1G/10G LED
11748 			 * sources are all wired through LED1, rather than only
11749 			 * 10G in other modes.
11750 			 */
11751 			val = ((params->hw_led_mode <<
11752 				SHARED_HW_CFG_LED_MODE_SHIFT) ==
11753 			       SHARED_HW_CFG_LED_EXTPHY2) ? 0x98 : 0x80;
11754 
11755 			elink_cl45_write(cb, phy,
11756 					 MDIO_PMA_DEVAD,
11757 					 MDIO_PMA_REG_8481_LED1_MASK,
11758 					 val);
11759 
11760 			/* Tell LED3 to blink on source */
11761 			elink_cl45_read(cb, phy,
11762 					MDIO_PMA_DEVAD,
11763 					MDIO_PMA_REG_8481_LINK_SIGNAL,
11764 					&val);
11765 			val &= ~(7<<6);
11766 			val |= (1<<6); /* A83B[8:6]= 1 */
11767 			elink_cl45_write(cb, phy,
11768 					 MDIO_PMA_DEVAD,
11769 					 MDIO_PMA_REG_8481_LINK_SIGNAL,
11770 					 val);
11771 			if (phy->type ==
11772 			    PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84834) {
11773 				/* Restore LED4 source to external link,
11774 				 * and re-enable interrupts.
11775 				 */
11776 				elink_cl45_write(cb, phy,
11777 						 MDIO_PMA_DEVAD,
11778 						 MDIO_PMA_REG_8481_SIGNAL_MASK,
11779 						 0x40);
11780 				if (params->link_flags &
11781 				    ELINK_LINK_FLAGS_INT_DISABLED) {
11782 					elink_link_int_enable(params);
11783 					params->link_flags &=
11784 						~ELINK_LINK_FLAGS_INT_DISABLED;
11785 				}
11786 			}
11787 		}
11788 		break;
11789 	}
11790 
11791 	/* This is a workaround for E3+84833 until autoneg
11792 	 * restart is fixed in f/w
11793 	 */
11794 	if (CHIP_IS_E3(params->chip_id)) {
11795 		elink_cl45_read(cb, phy, MDIO_WC_DEVAD,
11796 				MDIO_WC_REG_GP2_STATUS_GP_2_1, &val);
11797 	}
11798 }
11799 #endif /* EXCLUDE_BCM8481 / EXCLUDE_BCM8481 */
11800 #endif // EXCLUDE_NON_COMMON_INIT
11801 
11802 /******************************************************************/
11803 /*			54618SE PHY SECTION			  */
11804 /******************************************************************/
11805 #if (!defined EXCLUDE_NON_COMMON_INIT) && (!defined EXCLUDE_BCM54618SE)
11806 #ifdef ELINK_AUX_POWER
elink_54618se_init_required(struct elink_phy * phy,struct elink_params * params)11807 static int elink_54618se_init_required(struct elink_phy *phy,
11808 			       struct elink_params *params)
11809 {
11810 	u16 autoneg_val, an_1000_val, an_10_100_val, ctrl, legacy_status;
11811 	struct elink_dev *cb = params->cb;
11812 	/* read all advertisement */
11813 	elink_cl22_read(cb, phy,
11814 			MDIO_PMA_REG_CTRL, &ctrl);
11815 	/* In case PHY is in reset */
11816 	if (ctrl & (1<<15))
11817 		return 1;
11818 
11819 	elink_cl22_read(cb, phy,
11820 			0x09,
11821 			&an_1000_val);
11822 	elink_cl22_read(cb, phy,
11823 			0x04,
11824 			&an_10_100_val);
11825 	elink_cl22_read(cb, phy,
11826 			MDIO_PMA_REG_CTRL,
11827 			&autoneg_val);
11828 	elink_cl22_read(cb, phy,
11829 			0x19,
11830 			&legacy_status);
11831 	/* Check conditions to avoid link reset in case link was
11832 	 * already initialized and up
11833 	 */
11834 	if ((an_1000_val & 0x300) &&
11835 	    (an_10_100_val & 0x1e0) &&
11836 	    (autoneg_val & 0x1000) &&
11837 	    (legacy_status & (1<<2)))
11838 		return 0;
11839 	return 1;
11840 }
11841 #endif // ELINK_AUX_POWER
elink_54618se_specific_func(struct elink_phy * phy,struct elink_params * params,u32 action)11842 static void elink_54618se_specific_func(struct elink_phy *phy,
11843 					struct elink_params *params,
11844 					u32 action)
11845 {
11846 	struct elink_dev *cb = params->cb;
11847 	u16 temp;
11848 	switch (action) {
11849 	case ELINK_PHY_INIT:
11850 		/* Configure LED4: set to INTR (0x6). */
11851 		/* Accessing shadow register 0xe. */
11852 		elink_cl22_write(cb, phy,
11853 				 MDIO_REG_GPHY_SHADOW,
11854 				 MDIO_REG_GPHY_SHADOW_LED_SEL2);
11855 		elink_cl22_read(cb, phy,
11856 				MDIO_REG_GPHY_SHADOW,
11857 				&temp);
11858 		temp &= ~(0xf << 4);
11859 		temp |= (0x6 << 4);
11860 		elink_cl22_write(cb, phy,
11861 				 MDIO_REG_GPHY_SHADOW,
11862 				 MDIO_REG_GPHY_SHADOW_WR_ENA | temp);
11863 		/* Configure INTR based on link status change. */
11864 		elink_cl22_write(cb, phy,
11865 				 MDIO_REG_INTR_MASK,
11866 				 ~MDIO_REG_INTR_MASK_LINK_STATUS);
11867 		break;
11868 	}
11869 }
11870 
11871 static elink_status_t
elink_54618se_config_init(struct elink_phy * phy,struct elink_params * params,struct elink_vars * vars)11872 elink_54618se_config_init(struct elink_phy *phy,
11873     struct elink_params *params, struct elink_vars *vars)
11874 {
11875 	struct elink_dev *cb = params->cb;
11876 	u8 port;
11877 	u16 autoneg_val, an_1000_val, an_10_100_val, fc_val, temp;
11878 	u32 cfg_pin;
11879 #ifdef ELINK_AUX_POWER
11880 	u32 link_init_required = 1;
11881 	if (!elink_54618se_init_required(phy, params))
11882 		link_init_required = 0;
11883 	if (link_init_required) {
11884 #endif
11885 
11886 	ELINK_DEBUG_P0(cb, "54618SE cfg init\n");
11887 	MSLEEP(cb, 1);
11888 
11889 	/* This works with E3 only, no need to check the chip
11890 	 * before determining the port.
11891 	 */
11892 	port = params->port;
11893 
11894 	cfg_pin = (REG_RD(cb, params->shmem_base +
11895 			OFFSETOF(struct shmem_region,
11896 			dev_info.port_hw_config[port].e3_cmn_pin_cfg)) &
11897 			PORT_HW_CFG_E3_PHY_RESET_MASK) >>
11898 			PORT_HW_CFG_E3_PHY_RESET_SHIFT;
11899 
11900 	/* Drive pin high to bring the GPHY out of reset. */
11901 	elink_set_cfg_pin(cb, cfg_pin, 1);
11902 
11903 	/* wait for GPHY to reset */
11904 	MSLEEP(cb, 50);
11905 
11906 	/* reset phy */
11907 	elink_cl22_write(cb, phy,
11908 			 MDIO_PMA_REG_CTRL, 0x8000);
11909 	elink_wait_reset_complete(cb, phy, params);
11910 
11911 	/* Wait for GPHY to reset */
11912 	MSLEEP(cb, 50);
11913 
11914 #ifdef ELINK_AUX_POWER
11915 	} // If init required
11916 #endif
11917 
11918 		elink_54618se_specific_func(phy, params, ELINK_PHY_INIT);
11919 	/* Flip the signal detect polarity (set 0x1c.0x1e[8]). */
11920 	elink_cl22_write(cb, phy,
11921 			MDIO_REG_GPHY_SHADOW,
11922 			MDIO_REG_GPHY_SHADOW_AUTO_DET_MED);
11923 	elink_cl22_read(cb, phy,
11924 			MDIO_REG_GPHY_SHADOW,
11925 			&temp);
11926 	temp |= MDIO_REG_GPHY_SHADOW_INVERT_FIB_SD;
11927 	elink_cl22_write(cb, phy,
11928 			MDIO_REG_GPHY_SHADOW,
11929 			MDIO_REG_GPHY_SHADOW_WR_ENA | temp);
11930 
11931 	/* Set up fc */
11932 	/* Please refer to Table 28B-3 of 802.3ab-1999 spec. */
11933 	elink_calc_ieee_aneg_adv(phy, params, &vars->ieee_fc);
11934 #ifdef ELINK_AUX_POWER
11935 	if (!link_init_required)
11936 		return ELINK_STATUS_OK;
11937 #endif
11938 	fc_val = 0;
11939 	if ((vars->ieee_fc & MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_ASYMMETRIC) ==
11940 			MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_ASYMMETRIC)
11941 		fc_val |= MDIO_AN_REG_ADV_PAUSE_ASYMMETRIC;
11942 
11943 	if ((vars->ieee_fc & MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH) ==
11944 			MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH)
11945 		fc_val |= MDIO_AN_REG_ADV_PAUSE_PAUSE;
11946 
11947 	/* Read all advertisement */
11948 	elink_cl22_read(cb, phy,
11949 			0x09,
11950 			&an_1000_val);
11951 
11952 	elink_cl22_read(cb, phy,
11953 			0x04,
11954 			&an_10_100_val);
11955 
11956 	elink_cl22_read(cb, phy,
11957 			MDIO_PMA_REG_CTRL,
11958 			&autoneg_val);
11959 
11960 	/* Disable forced speed */
11961 	autoneg_val &= ~((1<<6) | (1<<8) | (1<<9) | (1<<12) | (1<<13));
11962 	an_10_100_val &= ~((1<<5) | (1<<6) | (1<<7) | (1<<8) | (1<<10) |
11963 			   (1<<11));
11964 
11965 	if (((phy->req_line_speed == ELINK_SPEED_AUTO_NEG) &&
11966 			(phy->speed_cap_mask &
11967 			PORT_HW_CFG_SPEED_CAPABILITY_D0_1G)) ||
11968 			(phy->req_line_speed == ELINK_SPEED_1000)) {
11969 		an_1000_val |= (1<<8);
11970 		autoneg_val |= (1<<9 | 1<<12);
11971 		if (phy->req_duplex == DUPLEX_FULL)
11972 			an_1000_val |= (1<<9);
11973 		ELINK_DEBUG_P0(cb, "Advertising 1G\n");
11974 	} else
11975 		an_1000_val &= ~((1<<8) | (1<<9));
11976 
11977 	elink_cl22_write(cb, phy,
11978 			0x09,
11979 			an_1000_val);
11980 	elink_cl22_read(cb, phy,
11981 			0x09,
11982 			&an_1000_val);
11983 
11984 	/* Advertise 10/100 link speed */
11985 	if (phy->req_line_speed == ELINK_SPEED_AUTO_NEG) {
11986 		if (phy->speed_cap_mask &
11987 		    PORT_HW_CFG_SPEED_CAPABILITY_D0_10M_HALF) {
11988 			an_10_100_val |= (1<<5);
11989 			autoneg_val |= (1<<9 | 1<<12);
11990 			ELINK_DEBUG_P0(cb, "Advertising 10M-HD\n");
11991 		}
11992 		if (phy->speed_cap_mask &
11993 		    PORT_HW_CFG_SPEED_CAPABILITY_D0_10M_FULL) {
11994 			an_10_100_val |= (1<<6);
11995 			autoneg_val |= (1<<9 | 1<<12);
11996 			ELINK_DEBUG_P0(cb, "Advertising 10M-FD\n");
11997 		}
11998 		if (phy->speed_cap_mask &
11999 		    PORT_HW_CFG_SPEED_CAPABILITY_D0_100M_HALF) {
12000 			an_10_100_val |= (1<<7);
12001 			autoneg_val |= (1<<9 | 1<<12);
12002 			ELINK_DEBUG_P0(cb, "Advertising 100M-HD\n");
12003 		}
12004 		if (phy->speed_cap_mask &
12005 		    PORT_HW_CFG_SPEED_CAPABILITY_D0_100M_FULL) {
12006 			an_10_100_val |= (1<<8);
12007 			autoneg_val |= (1<<9 | 1<<12);
12008 			ELINK_DEBUG_P0(cb, "Advertising 100M-FD\n");
12009 		}
12010 	}
12011 
12012 	/* Only 10/100 are allowed to work in FORCE mode */
12013 	if (phy->req_line_speed == ELINK_SPEED_100) {
12014 		autoneg_val |= (1<<13);
12015 		/* Enabled AUTO-MDIX when autoneg is disabled */
12016 		elink_cl22_write(cb, phy,
12017 				0x18,
12018 				(1<<15 | 1<<9 | 7<<0));
12019 		ELINK_DEBUG_P0(cb, "Setting 100M force\n");
12020 	}
12021 	if (phy->req_line_speed == ELINK_SPEED_10) {
12022 		/* Enabled AUTO-MDIX when autoneg is disabled */
12023 		elink_cl22_write(cb, phy,
12024 				0x18,
12025 				(1<<15 | 1<<9 | 7<<0));
12026 		ELINK_DEBUG_P0(cb, "Setting 10M force\n");
12027 	}
12028 
12029 	if ((phy->flags & ELINK_FLAGS_EEE) && elink_eee_has_cap(params)) {
12030 		elink_status_t rc;
12031 
12032 		elink_cl22_write(cb, phy, MDIO_REG_GPHY_EXP_ACCESS,
12033 				 MDIO_REG_GPHY_EXP_ACCESS_TOP |
12034 				 MDIO_REG_GPHY_EXP_TOP_2K_BUF);
12035 		elink_cl22_read(cb, phy, MDIO_REG_GPHY_EXP_ACCESS_GATE, &temp);
12036 		temp &= 0xfffe;
12037 		elink_cl22_write(cb, phy, MDIO_REG_GPHY_EXP_ACCESS_GATE, temp);
12038 
12039 		rc = elink_eee_initial_config(params, vars, SHMEM_EEE_1G_ADV);
12040 		if (rc != ELINK_STATUS_OK) {
12041 			ELINK_DEBUG_P0(cb, "Failed to configure EEE timers\n");
12042 			elink_eee_disable(phy, params, vars);
12043 		} else if ((params->eee_mode & ELINK_EEE_MODE_ADV_LPI) &&
12044 			   (phy->req_duplex == DUPLEX_FULL) &&
12045 			   (elink_eee_calc_timer(params) ||
12046 			    !(params->eee_mode & ELINK_EEE_MODE_ENABLE_LPI))) {
12047 			/* Need to advertise EEE only when requested,
12048 			 * and either no LPI assertion was requested,
12049 			 * or it was requested and a valid timer was set.
12050 			 * Also notice full duplex is required for EEE.
12051 			 */
12052 			elink_eee_advertise(phy, params, vars,
12053 					    SHMEM_EEE_1G_ADV);
12054 		} else {
12055 			ELINK_DEBUG_P0(cb, "Don't Advertise 1GBase-T EEE\n");
12056 			elink_eee_disable(phy, params, vars);
12057 		}
12058 	} else {
12059 		vars->eee_status &= ~SHMEM_EEE_1G_ADV <<
12060 				    SHMEM_EEE_SUPPORTED_SHIFT;
12061 
12062 		if (phy->flags & ELINK_FLAGS_EEE) {
12063 			/* Handle legacy auto-grEEEn */
12064 			if (params->feature_config_flags &
12065 			    ELINK_FEATURE_CONFIG_AUTOGREEEN_ENABLED) {
12066 				temp = 6;
12067 				ELINK_DEBUG_P0(cb, "Enabling Auto-GrEEEn\n");
12068 			} else {
12069 				temp = 0;
12070 				ELINK_DEBUG_P0(cb, "Don't Adv. EEE\n");
12071 			}
12072 			elink_cl45_write(cb, phy, MDIO_AN_DEVAD,
12073 					 MDIO_AN_REG_EEE_ADV, temp);
12074 		}
12075 	}
12076 
12077 	elink_cl22_write(cb, phy,
12078 			0x04,
12079 			an_10_100_val | fc_val);
12080 
12081 	if (phy->req_duplex == DUPLEX_FULL)
12082 		autoneg_val |= (1<<8);
12083 
12084 	elink_cl22_write(cb, phy,
12085 			MDIO_PMA_REG_CTRL, autoneg_val);
12086 
12087 	return ELINK_STATUS_OK;
12088 }
12089 
12090 
elink_5461x_set_link_led(struct elink_phy * phy,struct elink_params * params,u8 mode)12091 static void elink_5461x_set_link_led(struct elink_phy *phy,
12092 				       struct elink_params *params, u8 mode)
12093 {
12094 #ifdef ELINK_ENHANCEMENTS
12095 	struct elink_dev *cb = params->cb;
12096 	u16 temp;
12097 
12098 	elink_cl22_write(cb, phy,
12099 		MDIO_REG_GPHY_SHADOW,
12100 		MDIO_REG_GPHY_SHADOW_LED_SEL1);
12101 	elink_cl22_read(cb, phy,
12102 		MDIO_REG_GPHY_SHADOW,
12103 		&temp);
12104 	temp &= 0xff00;
12105 
12106 	ELINK_DEBUG_P1(cb, "54618x set link led (mode=%x)\n", mode);
12107 	switch (mode) {
12108 	case ELINK_LED_MODE_FRONT_PANEL_OFF:
12109 	case ELINK_LED_MODE_OFF:
12110 		temp |= 0x00ee;
12111 		break;
12112 	case ELINK_LED_MODE_OPER:
12113 		temp |= 0x0001;
12114 		break;
12115 	case ELINK_LED_MODE_ON:
12116 		temp |= 0x00ff;
12117 		break;
12118 	default:
12119 		break;
12120 	}
12121 	elink_cl22_write(cb, phy,
12122 		MDIO_REG_GPHY_SHADOW,
12123 		MDIO_REG_GPHY_SHADOW_WR_ENA | temp);
12124 	return;
12125 #endif // ELINK_ENHANCEMENTS
12126 }
12127 
12128 
elink_54618se_link_reset(struct elink_phy * phy,struct elink_params * params)12129 static void elink_54618se_link_reset(struct elink_phy *phy,
12130 				     struct elink_params *params)
12131 {
12132 	struct elink_dev *cb = params->cb;
12133 	u32 cfg_pin;
12134 	u8 port;
12135 
12136 #ifdef ELINK_AUX_POWER
12137 	if (!elink_54618se_init_required(phy, params))
12138 		return;
12139 #endif // ELINK_AUX_POWER
12140 	/* In case of no EPIO routed to reset the GPHY, put it
12141 	 * in low power mode.
12142 	 */
12143 	elink_cl22_write(cb, phy, MDIO_PMA_REG_CTRL, 0x800);
12144 	/* This works with E3 only, no need to check the chip
12145 	 * before determining the port.
12146 	 */
12147 	port = params->port;
12148 	cfg_pin = (REG_RD(cb, params->shmem_base +
12149 			OFFSETOF(struct shmem_region,
12150 			dev_info.port_hw_config[port].e3_cmn_pin_cfg)) &
12151 			PORT_HW_CFG_E3_PHY_RESET_MASK) >>
12152 			PORT_HW_CFG_E3_PHY_RESET_SHIFT;
12153 
12154 	/* Drive pin low to put GPHY in reset. */
12155 	elink_set_cfg_pin(cb, cfg_pin, 0);
12156 }
12157 
12158 static elink_status_t
elink_54618se_read_status(struct elink_phy * phy,struct elink_params * params,struct elink_vars * vars)12159 elink_54618se_read_status(struct elink_phy *phy, struct elink_params *params,
12160     struct elink_vars *vars)
12161 {
12162 	struct elink_dev *cb = params->cb;
12163 	u16 val;
12164 	u8 link_up = 0;
12165 	u16 legacy_status, legacy_speed;
12166 
12167 	/* Get speed operation status */
12168 	elink_cl22_read(cb, phy,
12169 			MDIO_REG_GPHY_AUX_STATUS,
12170 			&legacy_status);
12171 	ELINK_DEBUG_P1(cb, "54618SE read_status: 0x%x\n", legacy_status);
12172 
12173 	/* Read status to clear the PHY interrupt. */
12174 	elink_cl22_read(cb, phy,
12175 			MDIO_REG_INTR_STATUS,
12176 			&val);
12177 
12178 	link_up = ((legacy_status & (1<<2)) == (1<<2));
12179 
12180 	if (link_up) {
12181 		legacy_speed = (legacy_status & (7<<8));
12182 		if (legacy_speed == (7<<8)) {
12183 			vars->line_speed = ELINK_SPEED_1000;
12184 			vars->duplex = DUPLEX_FULL;
12185 		} else if (legacy_speed == (6<<8)) {
12186 			vars->line_speed = ELINK_SPEED_1000;
12187 			vars->duplex = DUPLEX_HALF;
12188 		} else if (legacy_speed == (5<<8)) {
12189 			vars->line_speed = ELINK_SPEED_100;
12190 			vars->duplex = DUPLEX_FULL;
12191 		}
12192 		/* Omitting 100Base-T4 for now */
12193 		else if (legacy_speed == (3<<8)) {
12194 			vars->line_speed = ELINK_SPEED_100;
12195 			vars->duplex = DUPLEX_HALF;
12196 		} else if (legacy_speed == (2<<8)) {
12197 			vars->line_speed = ELINK_SPEED_10;
12198 			vars->duplex = DUPLEX_FULL;
12199 		} else if (legacy_speed == (1<<8)) {
12200 			vars->line_speed = ELINK_SPEED_10;
12201 			vars->duplex = DUPLEX_HALF;
12202 		} else /* Should not happen */
12203 			vars->line_speed = 0;
12204 
12205 		ELINK_DEBUG_P2(cb,
12206 		   "Link is up in %dMbps, is_duplex_full= %d\n",
12207 		   vars->line_speed,
12208 		   (vars->duplex == DUPLEX_FULL));
12209 
12210 		/* Check legacy speed AN resolution */
12211 		elink_cl22_read(cb, phy,
12212 				0x01,
12213 				&val);
12214 		if (val & (1<<5))
12215 			vars->link_status |=
12216 				LINK_STATUS_AUTO_NEGOTIATE_COMPLETE;
12217 		elink_cl22_read(cb, phy,
12218 				0x06,
12219 				&val);
12220 		if ((val & (1<<0)) == 0)
12221 			vars->link_status |=
12222 				LINK_STATUS_PARALLEL_DETECTION_USED;
12223 
12224 		ELINK_DEBUG_P1(cb, "BCM54618SE: link speed is %d\n",
12225 			   vars->line_speed);
12226 
12227 		elink_ext_phy_resolve_fc(phy, params, vars);
12228 
12229 		if (vars->link_status & LINK_STATUS_AUTO_NEGOTIATE_COMPLETE) {
12230 			/* Report LP advertised speeds */
12231 			elink_cl22_read(cb, phy, 0x5, &val);
12232 
12233 			if (val & (1<<5))
12234 				vars->link_status |=
12235 				  LINK_STATUS_LINK_PARTNER_10THD_CAPABLE;
12236 			if (val & (1<<6))
12237 				vars->link_status |=
12238 				  LINK_STATUS_LINK_PARTNER_10TFD_CAPABLE;
12239 			if (val & (1<<7))
12240 				vars->link_status |=
12241 				  LINK_STATUS_LINK_PARTNER_100TXHD_CAPABLE;
12242 			if (val & (1<<8))
12243 				vars->link_status |=
12244 				  LINK_STATUS_LINK_PARTNER_100TXFD_CAPABLE;
12245 			if (val & (1<<9))
12246 				vars->link_status |=
12247 				  LINK_STATUS_LINK_PARTNER_100T4_CAPABLE;
12248 
12249 			elink_cl22_read(cb, phy, 0xa, &val);
12250 			if (val & (1<<10))
12251 				vars->link_status |=
12252 				  LINK_STATUS_LINK_PARTNER_1000THD_CAPABLE;
12253 			if (val & (1<<11))
12254 				vars->link_status |=
12255 				  LINK_STATUS_LINK_PARTNER_1000TFD_CAPABLE;
12256 
12257 			if ((phy->flags & ELINK_FLAGS_EEE) &&
12258 			    elink_eee_has_cap(params))
12259 				elink_eee_an_resolve(phy, params, vars);
12260 		}
12261 	}
12262 	return link_up;
12263 }
12264 
elink_54618se_config_loopback(struct elink_phy * phy,struct elink_params * params)12265 static void elink_54618se_config_loopback(struct elink_phy *phy,
12266 					  struct elink_params *params)
12267 {
12268 #ifdef ELINK_INCLUDE_LOOPBACK
12269 	struct elink_dev *cb = params->cb;
12270 	u16 val;
12271 	u32 umac_base = params->port ? GRCBASE_UMAC1 : GRCBASE_UMAC0;
12272 
12273 	ELINK_DEBUG_P0(cb, "2PMA/PMD ext_phy_loopback: 54618se\n");
12274 
12275 	/* Enable master/slave manual mmode and set to master */
12276 	/* mii write 9 [bits set 11 12] */
12277 	elink_cl22_write(cb, phy, 0x09, 3<<11);
12278 
12279 	/* forced 1G and disable autoneg */
12280 	/* set val [mii read 0] */
12281 	/* set val [expr $val & [bits clear 6 12 13]] */
12282 	/* set val [expr $val | [bits set 6 8]] */
12283 	/* mii write 0 $val */
12284 	elink_cl22_read(cb, phy, 0x00, &val);
12285 	val &= ~((1<<6) | (1<<12) | (1<<13));
12286 	val |= (1<<6) | (1<<8);
12287 	elink_cl22_write(cb, phy, 0x00, val);
12288 
12289 	/* Set external loopback and Tx using 6dB coding */
12290 	/* mii write 0x18 7 */
12291 	/* set val [mii read 0x18] */
12292 	/* mii write 0x18 [expr $val | [bits set 10 15]] */
12293 	elink_cl22_write(cb, phy, 0x18, 7);
12294 	elink_cl22_read(cb, phy, 0x18, &val);
12295 	elink_cl22_write(cb, phy, 0x18, val | (1<<10) | (1<<15));
12296 
12297 	/* This register opens the gate for the UMAC despite its name */
12298 	REG_WR(cb, NIG_REG_EGRESS_EMAC0_PORT + params->port*4, 1);
12299 
12300 	/* Maximum Frame Length (RW). Defines a 14-Bit maximum frame
12301 	 * length used by the MAC receive logic to check frames.
12302 	 */
12303 	REG_WR(cb, umac_base + UMAC_REG_MAXFR, 0x2710);
12304 #endif // ELINK_INCLUDE_LOOPBACK
12305 }
12306 
12307 #endif // (!defined EXCLUDE_NON_COMMON_INIT) && (!defined EXCLUDE_BCM54618SE)
12308 /******************************************************************/
12309 /*			SFX7101 PHY SECTION			  */
12310 /******************************************************************/
12311 #ifndef EXCLUDE_SFX7101
elink_7101_config_loopback(struct elink_phy * phy,struct elink_params * params)12312 static void elink_7101_config_loopback(struct elink_phy *phy,
12313 				       struct elink_params *params)
12314 {
12315 	struct elink_dev *cb = params->cb;
12316 	/* SFX7101_XGXS_TEST1 */
12317 	elink_cl45_write(cb, phy,
12318 			 MDIO_XS_DEVAD, MDIO_XS_SFX7101_XGXS_TEST1, 0x100);
12319 }
12320 
elink_7101_config_init(struct elink_phy * phy,struct elink_params * params,struct elink_vars * vars)12321 static elink_status_t elink_7101_config_init(struct elink_phy *phy,
12322 				  struct elink_params *params,
12323 				  struct elink_vars *vars)
12324 {
12325 	u16 fw_ver1, fw_ver2, val;
12326 	struct elink_dev *cb = params->cb;
12327 	ELINK_DEBUG_P0(cb, "Setting the SFX7101 LASI indication\n");
12328 
12329 	/* Restore normal power mode*/
12330 	ELINK_SET_GPIO(cb, MISC_REGISTERS_GPIO_2,
12331 		       MISC_REGISTERS_GPIO_OUTPUT_HIGH, params->port);
12332 	/* HW reset */
12333 	elink_ext_phy_hw_reset(cb, params->port);
12334 	elink_wait_reset_complete(cb, phy, params);
12335 
12336 	elink_cl45_write(cb, phy,
12337 			 MDIO_PMA_DEVAD, MDIO_PMA_LASI_CTRL, 0x1);
12338 	ELINK_DEBUG_P0(cb, "Setting the SFX7101 LED to blink on traffic\n");
12339 	elink_cl45_write(cb, phy,
12340 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_7107_LED_CNTL, (1<<3));
12341 
12342 	elink_ext_phy_set_pause(params, phy, vars);
12343 	/* Restart autoneg */
12344 	elink_cl45_read(cb, phy,
12345 			MDIO_AN_DEVAD, MDIO_AN_REG_CTRL, &val);
12346 	val |= 0x200;
12347 	elink_cl45_write(cb, phy,
12348 			 MDIO_AN_DEVAD, MDIO_AN_REG_CTRL, val);
12349 
12350 	/* Save spirom version */
12351 	elink_cl45_read(cb, phy,
12352 			MDIO_PMA_DEVAD, MDIO_PMA_REG_7101_VER1, &fw_ver1);
12353 
12354 	elink_cl45_read(cb, phy,
12355 			MDIO_PMA_DEVAD, MDIO_PMA_REG_7101_VER2, &fw_ver2);
12356 	elink_save_spirom_version(cb, params->port,
12357 				  (u32)(fw_ver1<<16 | fw_ver2), phy->ver_addr);
12358 	return ELINK_STATUS_OK;
12359 }
12360 
12361 static elink_status_t
elink_7101_read_status(struct elink_phy * phy,struct elink_params * params,struct elink_vars * vars)12362 elink_7101_read_status(struct elink_phy *phy, struct elink_params *params,
12363     struct elink_vars *vars)
12364 {
12365 	struct elink_dev *cb = params->cb;
12366 	u8 link_up;
12367 	u16 val1, val2;
12368 	elink_cl45_read(cb, phy,
12369 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_STAT, &val2);
12370 	elink_cl45_read(cb, phy,
12371 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_STAT, &val1);
12372 	ELINK_DEBUG_P2(cb, "10G-base-T LASI status 0x%x->0x%x\n",
12373 		   val2, val1);
12374 	elink_cl45_read(cb, phy,
12375 			MDIO_PMA_DEVAD, MDIO_PMA_REG_STATUS, &val2);
12376 	elink_cl45_read(cb, phy,
12377 			MDIO_PMA_DEVAD, MDIO_PMA_REG_STATUS, &val1);
12378 	ELINK_DEBUG_P2(cb, "10G-base-T PMA status 0x%x->0x%x\n",
12379 		   val2, val1);
12380 	link_up = ((val1 & 4) == 4);
12381 	/* If link is up print the AN outcome of the SFX7101 PHY */
12382 	if (link_up) {
12383 		elink_cl45_read(cb, phy,
12384 				MDIO_AN_DEVAD, MDIO_AN_REG_MASTER_STATUS,
12385 				&val2);
12386 		vars->line_speed = ELINK_SPEED_10000;
12387 		vars->duplex = DUPLEX_FULL;
12388 		ELINK_DEBUG_P2(cb, "SFX7101 AN status 0x%x->Master=%x\n",
12389 			   val2, (val2 & (1<<14)));
12390 		elink_ext_phy_10G_an_resolve(cb, phy, vars);
12391 		elink_ext_phy_resolve_fc(phy, params, vars);
12392 
12393 		/* Read LP advertised speeds */
12394 		if (val2 & (1<<11))
12395 			vars->link_status |=
12396 				LINK_STATUS_LINK_PARTNER_10GXFD_CAPABLE;
12397 	}
12398 	return link_up;
12399 }
12400 
12401 static elink_status_t
elink_7101_format_ver(u32 spirom_ver,u8 * str,u16 * len)12402 elink_7101_format_ver(u32 spirom_ver, u8 *str, u16 *len)
12403 {
12404 	if (*len < 5)
12405 		return ELINK_STATUS_ERROR;
12406 	str[0] = (spirom_ver & 0xFF);
12407 	str[1] = (spirom_ver & 0xFF00) >> 8;
12408 	str[2] = (spirom_ver & 0xFF0000) >> 16;
12409 	str[3] = (spirom_ver & 0xFF000000) >> 24;
12410 	str[4] = '\0';
12411 	*len -= 5;
12412 	return ELINK_STATUS_OK;
12413 }
12414 
elink_sfx7101_sp_sw_reset(struct elink_dev * cb,struct elink_phy * phy)12415 void elink_sfx7101_sp_sw_reset(struct elink_dev *cb, struct elink_phy *phy)
12416 {
12417 	u16 val, cnt;
12418 
12419 	elink_cl45_read(cb, phy,
12420 			MDIO_PMA_DEVAD,
12421 			MDIO_PMA_REG_7101_RESET, &val);
12422 
12423 	for (cnt = 0; cnt < 10; cnt++) {
12424 		MSLEEP(cb, 50);
12425 		/* Writes a self-clearing reset */
12426 		elink_cl45_write(cb, phy,
12427 				 MDIO_PMA_DEVAD,
12428 				 MDIO_PMA_REG_7101_RESET,
12429 				 (val | (1<<15)));
12430 		/* Wait for clear */
12431 		elink_cl45_read(cb, phy,
12432 				MDIO_PMA_DEVAD,
12433 				MDIO_PMA_REG_7101_RESET, &val);
12434 
12435 		if ((val & (1<<15)) == 0)
12436 			break;
12437 	}
12438 }
12439 
elink_7101_hw_reset(struct elink_phy * phy,struct elink_params * params)12440 static void elink_7101_hw_reset(struct elink_phy *phy,
12441 				struct elink_params *params) {
12442 #ifdef ELINK_ENHANCEMENTS
12443 	/* Low power mode is controlled by GPIO 2 */
12444 	ELINK_SET_GPIO(params->cb, MISC_REGISTERS_GPIO_2,
12445 		       MISC_REGISTERS_GPIO_OUTPUT_LOW, params->port);
12446 	/* The PHY reset is controlled by GPIO 1 */
12447 	ELINK_SET_GPIO(params->cb, MISC_REGISTERS_GPIO_1,
12448 		       MISC_REGISTERS_GPIO_OUTPUT_LOW, params->port);
12449 #endif // ELINK_ENHANCEMENTS
12450 }
12451 
elink_7101_set_link_led(struct elink_phy * phy,struct elink_params * params,u8 mode)12452 static void elink_7101_set_link_led(struct elink_phy *phy,
12453 				    struct elink_params *params, u8 mode)
12454 {
12455 	u16 val = 0;
12456 	struct elink_dev *cb = params->cb;
12457 	switch (mode) {
12458 	case ELINK_LED_MODE_FRONT_PANEL_OFF:
12459 	case ELINK_LED_MODE_OFF:
12460 		val = 2;
12461 		break;
12462 	case ELINK_LED_MODE_ON:
12463 		val = 1;
12464 		break;
12465 	case ELINK_LED_MODE_OPER:
12466 		val = 0;
12467 		break;
12468 	}
12469 	elink_cl45_write(cb, phy,
12470 			 MDIO_PMA_DEVAD,
12471 			 MDIO_PMA_REG_7107_LINK_LED_CNTL,
12472 			 val);
12473 }
12474 #endif /* EXCLUDE_SFX7101 */
12475 #endif /* ELINK_EMUL_ONLY */
12476 
12477 /******************************************************************/
12478 /*			STATIC PHY DECLARATION			  */
12479 /******************************************************************/
12480 
12481 static const struct elink_phy phy_null = {
12482 	/*.type		= */PORT_HW_CFG_XGXS_EXT_PHY_TYPE_NOT_CONN,
12483 	/*.addr		= */0,
12484 	/*.def_md_devad = */0,
12485 	/*.flags	= */ELINK_FLAGS_INIT_XGXS_FIRST,
12486 	/*.rx_preemphasis = */{0xffff, 0xffff, 0xffff, 0xffff},
12487 	/*.tx_preemphasis = */{0xffff, 0xffff, 0xffff, 0xffff},
12488 	/*.mdio_ctrl	= */0,
12489 	/*.supported	= */0,
12490 	/*.media_type	= */ELINK_ETH_PHY_NOT_PRESENT,
12491 	/*.sfp_media	= */ELINK_ETH_SFP_UNKNOWN,
12492 	/*.ver_addr	= */0,
12493 	/*.req_flow_ctrl = */0,
12494 	/*.req_line_speed = */0,
12495 	/*.speed_cap_mask = */0,
12496 	/*.req_duplex = */0,
12497 	/*.rsrv = */0,
12498 	/*.config_init	= */(config_init_t)NULL,
12499 	/*.read_status	= */(read_status_t)NULL,
12500 	/*.link_reset	= */(link_reset_t)NULL,
12501 	/*.config_loopback = */(config_loopback_t)NULL,
12502 	/*.format_fw_ver = */(format_fw_ver_t)NULL,
12503 	/*.hw_reset	= */(hw_reset_t)NULL,
12504 	/*.set_link_led = */(set_link_led_t)NULL,
12505 	/*.phy_specific_func = */(phy_specific_func_t)NULL
12506 };
12507 
12508 #ifndef EXCLUDE_SERDES
12509 static const struct elink_phy phy_serdes = {
12510 	/*.type		= */PORT_HW_CFG_SERDES_EXT_PHY_TYPE_DIRECT,
12511 	/*.addr		= */0xff,
12512 	/*.def_md_devad = */0,
12513 	/*.flags	= */0,
12514 	/*.rx_preemphasis = */{0xffff, 0xffff, 0xffff, 0xffff},
12515 	/*.tx_preemphasis = */{0xffff, 0xffff, 0xffff, 0xffff},
12516 	/*.mdio_ctrl	= */0,
12517 	/*.supported	= */(ELINK_SUPPORTED_10baseT_Half |
12518 			   ELINK_SUPPORTED_10baseT_Full |
12519 			   ELINK_SUPPORTED_100baseT_Half |
12520 			   ELINK_SUPPORTED_100baseT_Full |
12521 			   ELINK_SUPPORTED_1000baseT_Full |
12522 			   ELINK_SUPPORTED_2500baseX_Full |
12523 			   ELINK_SUPPORTED_TP |
12524 			   ELINK_SUPPORTED_Autoneg |
12525 			   ELINK_SUPPORTED_Pause |
12526 			   ELINK_SUPPORTED_Asym_Pause),
12527 	/*.media_type	= */ELINK_ETH_PHY_BASE_T,
12528 	/*.sfp_media	= */ELINK_ETH_SFP_UNKNOWN,
12529 	/*.ver_addr	= */0,
12530 	/*.req_flow_ctrl = */0,
12531 	/*.req_line_speed = */0,
12532 	/*.speed_cap_mask = */0,
12533 	/*.req_duplex = */0,
12534 	/*.rsrv = */0,
12535 	/*.config_init	= */elink_xgxs_config_init,
12536 	/*.read_status	= */elink_link_settings_status,
12537 	/*.link_reset	= */elink_int_link_reset,
12538 	/*.config_loopback = */(config_loopback_t)NULL,
12539 	/*.format_fw_ver	= */(format_fw_ver_t)NULL,
12540 	/*.hw_reset	= */(hw_reset_t)NULL,
12541 	/*.set_link_led = */(set_link_led_t)NULL,
12542 	/*.phy_specific_func = */(phy_specific_func_t)NULL
12543 };
12544 
12545 #endif /* #ifndef EXCLUDE_SERDES */
12546 #ifndef EXCLUDE_XGXS
12547 static const struct elink_phy phy_xgxs = {
12548 	/*.type		= */PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT,
12549 	/*.addr		= */0xff,
12550 	/*.def_md_devad = */0,
12551 	/*.flags	= */0,
12552 	/*.rx_preemphasis = */{0xffff, 0xffff, 0xffff, 0xffff},
12553 	/*.tx_preemphasis = */{0xffff, 0xffff, 0xffff, 0xffff},
12554 	/*.mdio_ctrl	= */0,
12555 	/*.supported	= */(ELINK_SUPPORTED_10baseT_Half |
12556 			   ELINK_SUPPORTED_10baseT_Full |
12557 			   ELINK_SUPPORTED_100baseT_Half |
12558 			   ELINK_SUPPORTED_100baseT_Full |
12559 			   ELINK_SUPPORTED_1000baseT_Full |
12560 			   ELINK_SUPPORTED_2500baseX_Full |
12561 			   ELINK_SUPPORTED_10000baseT_Full |
12562 			   ELINK_SUPPORTED_FIBRE |
12563 			   ELINK_SUPPORTED_Autoneg |
12564 			   ELINK_SUPPORTED_Pause |
12565 			   ELINK_SUPPORTED_Asym_Pause),
12566 	/*.media_type	= */ELINK_ETH_PHY_CX4,
12567 	/*.sfp_media	= */ELINK_ETH_SFP_UNKNOWN,
12568 	/*.ver_addr	= */0,
12569 	/*.req_flow_ctrl = */0,
12570 	/*.req_line_speed = */0,
12571 	/*.speed_cap_mask = */0,
12572 	/*.req_duplex = */0,
12573 	/*.rsrv = */0,
12574 #ifndef EXCLUDE_NON_COMMON_INIT
12575 	/*.config_init	= */elink_xgxs_config_init,
12576 	/*.read_status	= */elink_link_settings_status,
12577 	/*.link_reset	= */elink_int_link_reset,
12578 	/*.config_loopback = */elink_set_xgxs_loopback,
12579 	/*.format_fw_ver= */(format_fw_ver_t)NULL,
12580 	/*.hw_reset	= */(hw_reset_t)NULL,
12581 	/*.set_link_led = */(set_link_led_t)NULL,
12582 	/*.phy_specific_func = */elink_xgxs_specific_func
12583 #endif
12584 };
12585 #endif
12586 #ifndef EXCLUDE_WARPCORE
12587 static const struct elink_phy phy_warpcore = {
12588 	/*.type		= */PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT,
12589 	/*.addr		= */0xff,
12590 	/*.def_md_devad = */0,
12591 	/*.flags	= */ELINK_FLAGS_TX_ERROR_CHECK,
12592 	/*.rx_preemphasis = */{0xffff, 0xffff, 0xffff, 0xffff},
12593 	/*.tx_preemphasis = */{0xffff, 0xffff, 0xffff, 0xffff},
12594 	/*.mdio_ctrl 	= */0,
12595 	/*.supported	= */(ELINK_SUPPORTED_10baseT_Half |
12596 			   ELINK_SUPPORTED_10baseT_Full |
12597 			   ELINK_SUPPORTED_100baseT_Half |
12598 			   ELINK_SUPPORTED_100baseT_Full |
12599 			   ELINK_SUPPORTED_1000baseT_Full |
12600 			   ELINK_SUPPORTED_10000baseT_Full |
12601 			   ELINK_SUPPORTED_20000baseKR2_Full |
12602 			   ELINK_SUPPORTED_20000baseMLD2_Full |
12603 			   ELINK_SUPPORTED_FIBRE |
12604 			   ELINK_SUPPORTED_Autoneg |
12605 			   ELINK_SUPPORTED_Pause |
12606 			   ELINK_SUPPORTED_Asym_Pause),
12607 	/*.media_type	= */ELINK_ETH_PHY_UNSPECIFIED,
12608 	/*.sfp_media	= */ELINK_ETH_SFP_UNKNOWN,
12609 	/*.ver_addr 	= */0,
12610 	/*.req_flow_ctrl = */0,
12611 	/*.req_line_speed = */0,
12612 	/*.speed_cap_mask = */0,
12613 	/* req_duplex = */0,
12614 	/* rsrv = */0,
12615 #ifndef EXCLUDE_NON_COMMON_INIT
12616 	/*.config_init	= */elink_warpcore_config_init,
12617 	/*.read_status	= */elink_warpcore_read_status,
12618 	/*.link_reset	= */elink_warpcore_link_reset,
12619 	/*.config_loopback = */elink_set_warpcore_loopback,
12620 	/*.format_fw_ver= */(format_fw_ver_t)NULL,
12621 	/*.hw_reset = */elink_warpcore_hw_reset,
12622 	/*.set_link_led = */(set_link_led_t)NULL,
12623 	/*.phy_specific_func = */(phy_specific_func_t)NULL
12624 #endif
12625 };
12626 
12627 #endif /* #ifndef EXCLUDE_WARPCORE */
12628 
12629 #ifndef ELINK_EMUL_ONLY
12630 #ifndef EXCLUDE_SFX7101
12631 static const struct elink_phy phy_7101 = {
12632 	/*.type		= */PORT_HW_CFG_XGXS_EXT_PHY_TYPE_SFX7101,
12633 	/*.addr		= */0xff,
12634 	/*.def_md_devad = */0,
12635 	/*.flags	= */ELINK_FLAGS_FAN_FAILURE_DET_REQ,
12636 	/*.rx_preemphasis = */{0xffff, 0xffff, 0xffff, 0xffff},
12637 	/*.tx_preemphasis = */{0xffff, 0xffff, 0xffff, 0xffff},
12638 	/*.mdio_ctrl	= */0,
12639 	/*.supported	= */(ELINK_SUPPORTED_10000baseT_Full |
12640 			   ELINK_SUPPORTED_TP |
12641 			   ELINK_SUPPORTED_Autoneg |
12642 			   ELINK_SUPPORTED_Pause |
12643 			   ELINK_SUPPORTED_Asym_Pause),
12644 	/*.media_type	= */ELINK_ETH_PHY_BASE_T,
12645 	/*.sfp_media	= */ELINK_ETH_SFP_UNKNOWN,
12646 	/*.ver_addr	= */0,
12647 	/*.req_flow_ctrl = */0,
12648 	/*.req_line_speed = */0,
12649 	/*.speed_cap_mask = */0,
12650 	/*.req_duplex = */0,
12651 	/*.rsrv = */0,
12652 	/*.config_init	= */elink_7101_config_init,
12653 	/*.read_status	= */elink_7101_read_status,
12654 	/*.link_reset	= */elink_common_ext_link_reset,
12655 	/*.config_loopback = */elink_7101_config_loopback,
12656 	/*.format_fw_ver= */elink_7101_format_ver,
12657 	/*.hw_reset	= */elink_7101_hw_reset,
12658 	/*.set_link_led = */elink_7101_set_link_led,
12659 	/*.phy_specific_func = */(phy_specific_func_t)NULL
12660 };
12661 #endif /* EXCLUDE_SFX7101 */
12662 #ifndef EXCLUDE_BCM8727_BCM8073
12663 static const struct elink_phy phy_8073 = {
12664 	/*.type		= */PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8073,
12665 	/*.addr		= */0xff,
12666 	/*.def_md_devad = */0,
12667 	/*.flags	= */0,
12668 	/*.rx_preemphasis = */{0xffff, 0xffff, 0xffff, 0xffff},
12669 	/*.tx_preemphasis = */{0xffff, 0xffff, 0xffff, 0xffff},
12670 	/*.mdio_ctrl	= */0,
12671 	/*.supported	= */(ELINK_SUPPORTED_10000baseT_Full |
12672 			   ELINK_SUPPORTED_2500baseX_Full |
12673 			   ELINK_SUPPORTED_1000baseT_Full |
12674 			   ELINK_SUPPORTED_FIBRE |
12675 			   ELINK_SUPPORTED_Autoneg |
12676 			   ELINK_SUPPORTED_Pause |
12677 			   ELINK_SUPPORTED_Asym_Pause),
12678 	/*.media_type	= */ELINK_ETH_PHY_KR,
12679 	/*.sfp_media	= */ELINK_ETH_SFP_UNKNOWN,
12680 	/*.ver_addr	= */0,
12681 	/*.req_flow_ctrl = */0,
12682 	/*.req_line_speed = */0,
12683 	/*.speed_cap_mask = */0,
12684 	/*.req_duplex	= */0,
12685 	/*.rsrv		= */0,
12686 #ifndef EXCLUDE_NON_COMMON_INIT
12687 	/*.config_init	= */elink_8073_config_init,
12688 	/*.read_status	= */elink_8073_read_status,
12689 	/*.link_reset	= */elink_8073_link_reset,
12690 	/*.config_loopback = */(config_loopback_t)NULL,
12691 	/*.format_fw_ver= */elink_format_ver,
12692 	/*.hw_reset	= */(hw_reset_t)NULL,
12693 	/*.set_link_led = */(set_link_led_t)NULL,
12694 	/*.phy_specific_func = */elink_8073_specific_func
12695 #endif
12696 };
12697 #endif
12698 #ifndef EXCLUDE_BCM8705
12699 static const struct elink_phy phy_8705 = {
12700 	/*.type		= */PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8705,
12701 	/*.addr		= */0xff,
12702 	/*.def_md_devad = */0,
12703 	/*.flags	= */ELINK_FLAGS_INIT_XGXS_FIRST,
12704 	/*.rx_preemphasis = */{0xffff, 0xffff, 0xffff, 0xffff},
12705 	/*.tx_preemphasis = */{0xffff, 0xffff, 0xffff, 0xffff},
12706 	/*.mdio_ctrl	= */0,
12707 	/*.supported	= */(ELINK_SUPPORTED_10000baseT_Full |
12708 			   ELINK_SUPPORTED_FIBRE |
12709 			   ELINK_SUPPORTED_Pause |
12710 			   ELINK_SUPPORTED_Asym_Pause),
12711 	/*.media_type	= */ELINK_ETH_PHY_XFP_FIBER,
12712 	/*.sfp_media	= */ELINK_ETH_SFP_UNKNOWN,
12713 	/*.ver_addr	= */0,
12714 	/*.req_flow_ctrl = */0,
12715 	/*.req_line_speed = */0,
12716 	/*.speed_cap_mask = */0,
12717 	/*.req_duplex = */0,
12718 	/*.rsrv = */0,
12719 	/*.config_init	= */elink_8705_config_init,
12720 	/*.read_status	= */elink_8705_read_status,
12721 	/*.link_reset	= */elink_common_ext_link_reset,
12722 	/*.config_loopback = */(config_loopback_t)NULL,
12723 	/*.format_fw_ver= */elink_null_format_ver,
12724 	/*.hw_reset	= */(hw_reset_t)NULL,
12725 	/*.set_link_led = */(set_link_led_t)NULL,
12726 	/*.phy_specific_func = */(phy_specific_func_t)NULL
12727 };
12728 #endif /* EXCLUDE_BCM8705 */
12729 #ifndef EXCLUDE_BCM87x6
12730 static const struct elink_phy phy_8706 = {
12731 	/*.type		= */PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8706,
12732 	/*.addr		= */0xff,
12733 	/*.def_md_devad = */0,
12734 	/*.flags	= */ELINK_FLAGS_INIT_XGXS_FIRST,
12735 	/*.rx_preemphasis = */{0xffff, 0xffff, 0xffff, 0xffff},
12736 	/*.tx_preemphasis = */{0xffff, 0xffff, 0xffff, 0xffff},
12737 	/*.mdio_ctrl	= */0,
12738 	/*.supported	= */(ELINK_SUPPORTED_10000baseT_Full |
12739 			   ELINK_SUPPORTED_1000baseT_Full |
12740 			   ELINK_SUPPORTED_FIBRE |
12741 			   ELINK_SUPPORTED_Pause |
12742 			   ELINK_SUPPORTED_Asym_Pause),
12743 	/*.media_type	= */ELINK_ETH_PHY_SFPP_10G_FIBER,
12744 	/*.sfp_media	= */ELINK_ETH_SFP_UNKNOWN,
12745 	/*.ver_addr	= */0,
12746 	/*.req_flow_ctrl = */0,
12747 	/*.req_line_speed = */0,
12748 	/*.speed_cap_mask = */0,
12749 	/*.req_duplex = */0,
12750 	/*.rsrv = */0,
12751 	/*.config_init	= */elink_8706_config_init,
12752 	/*.read_status	= */elink_8706_read_status,
12753 	/*.link_reset	= */elink_common_ext_link_reset,
12754 	/*.config_loopback = */(config_loopback_t)NULL,
12755 	/*.format_fw_ver= */elink_format_ver,
12756 	/*.hw_reset	= */(hw_reset_t)NULL,
12757 	/*.set_link_led = */(set_link_led_t)NULL,
12758 	/*.phy_specific_func = */(phy_specific_func_t)NULL
12759 };
12760 
12761 static const struct elink_phy phy_8726 = {
12762 	/*.type		= */PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8726,
12763 	/*.addr		= */0xff,
12764 	/*.def_md_devad = */0,
12765 	/*.flags	= */(ELINK_FLAGS_INIT_XGXS_FIRST |
12766 			   ELINK_FLAGS_TX_ERROR_CHECK),
12767 	/*.rx_preemphasis = */{0xffff, 0xffff, 0xffff, 0xffff},
12768 	/*.tx_preemphasis = */{0xffff, 0xffff, 0xffff, 0xffff},
12769 	/*.mdio_ctrl	= */0,
12770 	/*.supported	= */(ELINK_SUPPORTED_10000baseT_Full |
12771 			   ELINK_SUPPORTED_1000baseT_Full |
12772 			   ELINK_SUPPORTED_Autoneg |
12773 			   ELINK_SUPPORTED_FIBRE |
12774 			   ELINK_SUPPORTED_Pause |
12775 			   ELINK_SUPPORTED_Asym_Pause),
12776 	/*.media_type	= */ELINK_ETH_PHY_NOT_PRESENT,
12777 	/*.sfp_media	= */ELINK_ETH_SFP_UNKNOWN,
12778 	/*.ver_addr	= */0,
12779 	/*.req_flow_ctrl = */0,
12780 	/*.req_line_speed = */0,
12781 	/*.speed_cap_mask = */0,
12782 	/*.req_duplex = */0,
12783 	/*.rsrv = */0,
12784 	/*.config_init	= */elink_8726_config_init,
12785 	/*.read_status	= */elink_8726_read_status,
12786 	/*.link_reset	= */elink_8726_link_reset,
12787 	/*.config_loopback = */elink_8726_config_loopback,
12788 	/*.format_fw_ver= */elink_format_ver,
12789 	/*.hw_reset	= */(hw_reset_t)NULL,
12790 	/*.set_link_led = */(set_link_led_t)NULL,
12791 	/*.phy_specific_func = */(phy_specific_func_t)NULL
12792 };
12793 #endif /* #ifndef EXCLUDE_BCM87x6 */
12794 
12795 #ifndef EXCLUDE_BCM8727_BCM8073
12796 static const struct elink_phy phy_8727 = {
12797 	/*.type		= */PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8727,
12798 	/*.addr		= */0xff,
12799 	/*.def_md_devad = */0,
12800 	/*.flags	= */(ELINK_FLAGS_FAN_FAILURE_DET_REQ |
12801 			   ELINK_FLAGS_TX_ERROR_CHECK),
12802 	/*.rx_preemphasis = */{0xffff, 0xffff, 0xffff, 0xffff},
12803 	/*.tx_preemphasis = */{0xffff, 0xffff, 0xffff, 0xffff},
12804 	/*.mdio_ctrl	= */0,
12805 	/*.supported	= */(ELINK_SUPPORTED_10000baseT_Full |
12806 			   ELINK_SUPPORTED_1000baseT_Full |
12807 			   ELINK_SUPPORTED_FIBRE |
12808 			   ELINK_SUPPORTED_Pause |
12809 			   ELINK_SUPPORTED_Asym_Pause),
12810 	/*.media_type	= */ELINK_ETH_PHY_NOT_PRESENT,
12811 	/*.sfp_media	= */ELINK_ETH_SFP_UNKNOWN,
12812 	/*.ver_addr	= */0,
12813 	/*.req_flow_ctrl = */0,
12814 	/*.req_line_speed = */0,
12815 	/*.speed_cap_mask = */0,
12816 	/*.req_duplex = */0,
12817 	/*.rsrv = */0,
12818 #ifndef EXCLUDE_NON_COMMON_INIT
12819 	/*.config_init	= */elink_8727_config_init,
12820 	/*.read_status	= */elink_8727_read_status,
12821 	/*.link_reset	= */elink_8727_link_reset,
12822 	/*.config_loopback = */(config_loopback_t)NULL,
12823 	/*.format_fw_ver= */elink_format_ver,
12824 	/*.hw_reset	= */elink_8727_hw_reset,
12825 	/*.set_link_led = */elink_8727_set_link_led,
12826 	/*.phy_specific_func = */elink_8727_specific_func
12827 #endif
12828 };
12829 #endif
12830 #ifndef EXCLUDE_BCM8481
12831 static const struct elink_phy phy_8481 = {
12832 	/*.type		= */PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8481,
12833 	/*.addr		= */0xff,
12834 	/*.def_md_devad = */0,
12835 	/*.flags	= */ELINK_FLAGS_FAN_FAILURE_DET_REQ |
12836 			  ELINK_FLAGS_REARM_LATCH_SIGNAL,
12837 	/*.rx_preemphasis = */{0xffff, 0xffff, 0xffff, 0xffff},
12838 	/*.tx_preemphasis = */{0xffff, 0xffff, 0xffff, 0xffff},
12839 	/*.mdio_ctrl	= */0,
12840 	/*.supported	= */(ELINK_SUPPORTED_10baseT_Half |
12841 			   ELINK_SUPPORTED_10baseT_Full |
12842 			   ELINK_SUPPORTED_100baseT_Half |
12843 			   ELINK_SUPPORTED_100baseT_Full |
12844 			   ELINK_SUPPORTED_1000baseT_Full |
12845 			   ELINK_SUPPORTED_10000baseT_Full |
12846 			   ELINK_SUPPORTED_TP |
12847 			   ELINK_SUPPORTED_Autoneg |
12848 			   ELINK_SUPPORTED_Pause |
12849 			   ELINK_SUPPORTED_Asym_Pause),
12850 	/*.media_type	= */ELINK_ETH_PHY_BASE_T,
12851 	/*.sfp_media	= */ELINK_ETH_SFP_UNKNOWN,
12852 	/*.ver_addr	= */0,
12853 	/*.req_flow_ctrl = */0,
12854 	/*.req_line_speed = */0,
12855 	/*.speed_cap_mask = */0,
12856 	/*.req_duplex = */0,
12857 	/*.rsrv = */0,
12858 #ifndef EXCLUDE_NON_COMMON_INIT
12859 	/*.config_init	= */elink_8481_config_init,
12860 	/*.read_status	= */elink_848xx_read_status,
12861 	/*.link_reset	= */elink_8481_link_reset,
12862 	/*.config_loopback = */(config_loopback_t)NULL,
12863 	/*.format_fw_ver= */elink_848xx_format_ver,
12864 	/*.hw_reset	= */elink_8481_hw_reset,
12865 	/*.set_link_led = */elink_848xx_set_link_led,
12866 	/*.phy_specific_func = */(phy_specific_func_t)NULL
12867 #endif
12868 };
12869 
12870 static const struct elink_phy phy_84823 = {
12871 	/*.type		= */PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84823,
12872 	/*.addr		= */0xff,
12873 	/*.def_md_devad = */0,
12874 	/*.flags	= */(ELINK_FLAGS_FAN_FAILURE_DET_REQ |
12875 			   ELINK_FLAGS_REARM_LATCH_SIGNAL |
12876 			   ELINK_FLAGS_TX_ERROR_CHECK),
12877 	/*.rx_preemphasis = */{0xffff, 0xffff, 0xffff, 0xffff},
12878 	/*.tx_preemphasis = */{0xffff, 0xffff, 0xffff, 0xffff},
12879 	/*.mdio_ctrl	= */0,
12880 	/*.supported	= */(ELINK_SUPPORTED_10baseT_Half |
12881 			   ELINK_SUPPORTED_10baseT_Full |
12882 			   ELINK_SUPPORTED_100baseT_Half |
12883 			   ELINK_SUPPORTED_100baseT_Full |
12884 			   ELINK_SUPPORTED_1000baseT_Full |
12885 			   ELINK_SUPPORTED_10000baseT_Full |
12886 			   ELINK_SUPPORTED_TP |
12887 			   ELINK_SUPPORTED_Autoneg |
12888 			   ELINK_SUPPORTED_Pause |
12889 			   ELINK_SUPPORTED_Asym_Pause),
12890 	/*.media_type	= */ELINK_ETH_PHY_BASE_T,
12891 	/*.sfp_media	= */ELINK_ETH_SFP_UNKNOWN,
12892 	/*.ver_addr	= */0,
12893 	/*.req_flow_ctrl = */0,
12894 	/*.req_line_speed = */0,
12895 	/*.speed_cap_mask = */0,
12896 	/*.req_duplex = */0,
12897 	/*.rsrv = */0,
12898 #ifndef EXCLUDE_NON_COMMON_INIT
12899 	/*.config_init	= */elink_848x3_config_init,
12900 	/*.read_status	= */elink_848xx_read_status,
12901 	/*.link_reset	= */elink_848x3_link_reset,
12902 	/*.config_loopback = */(config_loopback_t)NULL,
12903 	/*.format_fw_ver= */elink_848xx_format_ver,
12904 	/*.hw_reset	= */(hw_reset_t)NULL,
12905 	/*.set_link_led = */elink_848xx_set_link_led,
12906 	/*.phy_specific_func = */elink_848xx_specific_func
12907 #endif // #ifndef EXCLUDE_NON_COMMON_INIT
12908 };
12909 #endif /* EXCLUDE_BCM8481 */
12910 
12911 #ifndef EXCLUDE_BCM84833
12912 static const struct elink_phy phy_84833 = {
12913 	/*.type		= */PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833,
12914 	/*.addr		= */0xff,
12915 	/*.def_md_devad = */0,
12916 	/*.flags	= */(ELINK_FLAGS_FAN_FAILURE_DET_REQ |
12917 			   ELINK_FLAGS_REARM_LATCH_SIGNAL |
12918 			   ELINK_FLAGS_TX_ERROR_CHECK |
12919 			   ELINK_FLAGS_TEMPERATURE),
12920 	/*.rx_preemphasis = */{0xffff, 0xffff, 0xffff, 0xffff},
12921 	/*.tx_preemphasis = */{0xffff, 0xffff, 0xffff, 0xffff},
12922 	/*.mdio_ctrl	= */0,
12923 	/*.supported	= */(ELINK_SUPPORTED_100baseT_Half |
12924 			   ELINK_SUPPORTED_100baseT_Full |
12925 			   ELINK_SUPPORTED_1000baseT_Full |
12926 			   ELINK_SUPPORTED_10000baseT_Full |
12927 			   ELINK_SUPPORTED_TP |
12928 			   ELINK_SUPPORTED_Autoneg |
12929 			   ELINK_SUPPORTED_Pause |
12930 			   ELINK_SUPPORTED_Asym_Pause),
12931 	/*.media_type	= */ELINK_ETH_PHY_BASE_T,
12932 	/*.sfp_media	= */ELINK_ETH_SFP_UNKNOWN,
12933 	/*.ver_addr	= */0,
12934 	/*.req_flow_ctrl = */0,
12935 	/*.req_line_speed = */0,
12936 	/*.speed_cap_mask = */0,
12937 	/*.req_duplex = */0,
12938 	/*.rsrv = */0,
12939 #ifndef EXCLUDE_NON_COMMON_INIT
12940 	/*.config_init	= */elink_848x3_config_init,
12941 	/*.read_status	= */elink_848xx_read_status,
12942 	/*.link_reset	= */elink_848x3_link_reset,
12943 	/*.config_loopback = */(config_loopback_t)NULL,
12944 	/*.format_fw_ver= */elink_848xx_format_ver,
12945 	/*.hw_reset	= */elink_84833_hw_reset_phy,
12946 	/*.set_link_led = */elink_848xx_set_link_led,
12947 	/*.phy_specific_func = */elink_848xx_specific_func
12948 #endif
12949 };
12950 
12951 static const struct elink_phy phy_84834 = {
12952 	/*.type		= */PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84834,
12953 	/*.addr		= */0xff,
12954 	/*.def_md_devad = */0,
12955 	/*.flags	= */ELINK_FLAGS_FAN_FAILURE_DET_REQ |
12956 			    ELINK_FLAGS_REARM_LATCH_SIGNAL,
12957 	/*.rx_preemphasis = */{0xffff, 0xffff, 0xffff, 0xffff},
12958 	/*.tx_preemphasis = */{0xffff, 0xffff, 0xffff, 0xffff},
12959 	/*.mdio_ctrl	= */0,
12960 	/*.supported	= */(ELINK_SUPPORTED_100baseT_Half |
12961 			   ELINK_SUPPORTED_100baseT_Full |
12962 			   ELINK_SUPPORTED_1000baseT_Full |
12963 			   ELINK_SUPPORTED_10000baseT_Full |
12964 			   ELINK_SUPPORTED_TP |
12965 			   ELINK_SUPPORTED_Autoneg |
12966 			   ELINK_SUPPORTED_Pause |
12967 			   ELINK_SUPPORTED_Asym_Pause),
12968 	/*.media_type	= */ELINK_ETH_PHY_BASE_T,
12969 	/*.sfp_media	= */ELINK_ETH_SFP_UNKNOWN,
12970 	/*.ver_addr	= */0,
12971 	/*.req_flow_ctrl = */0,
12972 	/*.req_line_speed = */0,
12973 	/*.speed_cap_mask = */0,
12974 	/*.req_duplex = */0,
12975 	/*.rsrv = */0,
12976 #ifndef EXCLUDE_NON_COMMON_INIT
12977 	/*.config_init	= */elink_848x3_config_init,
12978 	/*.read_status	= */elink_848xx_read_status,
12979 	/*.link_reset	= */elink_848x3_link_reset,
12980 	/*.config_loopback = */(config_loopback_t)NULL,
12981 	/*.format_fw_ver= */elink_848xx_format_ver,
12982 	/*.hw_reset	= */elink_84833_hw_reset_phy,
12983 	/*.set_link_led = */elink_848xx_set_link_led,
12984 	/*.phy_specific_func = */elink_848xx_specific_func
12985 #endif
12986 };
12987 #endif // #ifndef EXCLUDE_BCM84833
12988 
12989 #ifndef EXCLUDE_BCM54618SE
12990 static const struct elink_phy phy_54618se = {
12991 	/*.type		= */PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM54618SE,
12992 	/*.addr		= */0xff,
12993 	/*.def_md_devad = */0,
12994 	/*.flags	= */ELINK_FLAGS_INIT_XGXS_FIRST,
12995 	/*.rx_preemphasis = */{0xffff, 0xffff, 0xffff, 0xffff},
12996 	/*.tx_preemphasis = */{0xffff, 0xffff, 0xffff, 0xffff},
12997 	/*.mdio_ctrl	= */0,
12998 	/*.supported	= */(ELINK_SUPPORTED_10baseT_Half |
12999 			   ELINK_SUPPORTED_10baseT_Full |
13000 			   ELINK_SUPPORTED_100baseT_Half |
13001 			   ELINK_SUPPORTED_100baseT_Full |
13002 			   ELINK_SUPPORTED_1000baseT_Full |
13003 			   ELINK_SUPPORTED_TP |
13004 			   ELINK_SUPPORTED_Autoneg |
13005 			   ELINK_SUPPORTED_Pause |
13006 			   ELINK_SUPPORTED_Asym_Pause),
13007 	/*.media_type	= */ELINK_ETH_PHY_BASE_T,
13008 	/*.sfp_media	= */ELINK_ETH_SFP_UNKNOWN,
13009 	/*.ver_addr 	= */0,
13010 	/*.req_flow_ctrl = */0,
13011 	/*.req_line_speed = */0,
13012 	/*.speed_cap_mask = */0,
13013 	/* req_duplex = */0,
13014 	/* rsrv = */0,
13015 #ifndef EXCLUDE_NON_COMMON_INIT
13016 	/*.config_init	= */elink_54618se_config_init,
13017 	/*.read_status	= */elink_54618se_read_status,
13018 	/*.link_reset	= */elink_54618se_link_reset,
13019 	/*.config_loopback = */elink_54618se_config_loopback,
13020 	/*.format_fw_ver= */(format_fw_ver_t)NULL,
13021 	/*.hw_reset	= */(hw_reset_t)NULL,
13022 	/*.set_link_led = */elink_5461x_set_link_led,
13023 	/*.phy_specific_func = */elink_54618se_specific_func
13024 #endif
13025 };
13026 #endif
13027 #endif /* ELINK_EMUL_ONLY */
13028 /*****************************************************************/
13029 /*                                                               */
13030 /* Populate the phy according. Main function: elink_populate_phy   */
13031 /*                                                               */
13032 /*****************************************************************/
13033 
13034 #ifndef EXCLUDE_COMMON_INIT
elink_populate_preemphasis(struct elink_dev * cb,u32 shmem_base,struct elink_phy * phy,u8 port,u8 phy_index)13035 static void elink_populate_preemphasis(struct elink_dev *cb, u32 shmem_base,
13036 				     struct elink_phy *phy, u8 port,
13037 				     u8 phy_index)
13038 {
13039 	/* Get the 4 lanes xgxs config rx and tx */
13040 	u32 rx = 0, tx = 0, i;
13041 	for (i = 0; i < 2; i++) {
13042 		/* INT_PHY and ELINK_EXT_PHY1 share the same value location in
13043 		 * the shmem. When num_phys is greater than 1, than this value
13044 		 * applies only to ELINK_EXT_PHY1
13045 		 */
13046 		if (phy_index == ELINK_INT_PHY || phy_index == ELINK_EXT_PHY1) {
13047 			rx = REG_RD(cb, shmem_base +
13048 				    OFFSETOF(struct shmem_region,
13049 			  dev_info.port_hw_config[port].xgxs_config_rx[i<<1]));
13050 
13051 			tx = REG_RD(cb, shmem_base +
13052 				    OFFSETOF(struct shmem_region,
13053 			  dev_info.port_hw_config[port].xgxs_config_tx[i<<1]));
13054 		} else {
13055 			rx = REG_RD(cb, shmem_base +
13056 				    OFFSETOF(struct shmem_region,
13057 			 dev_info.port_hw_config[port].xgxs_config2_rx[i<<1]));
13058 
13059 			tx = REG_RD(cb, shmem_base +
13060 				    OFFSETOF(struct shmem_region,
13061 			 dev_info.port_hw_config[port].xgxs_config2_rx[i<<1]));
13062 		}
13063 
13064 		phy->rx_preemphasis[i << 1] = ((rx>>16) & 0xffff);
13065 		phy->rx_preemphasis[(i << 1) + 1] = (rx & 0xffff);
13066 
13067 		phy->tx_preemphasis[i << 1] = ((tx>>16) & 0xffff);
13068 		phy->tx_preemphasis[(i << 1) + 1] = (tx & 0xffff);
13069 	}
13070 }
13071 
13072 #ifndef ELINK_EMUL_ONLY
elink_get_ext_phy_config(struct elink_dev * cb,u32 shmem_base,u8 phy_index,u8 port)13073 static u32 elink_get_ext_phy_config(struct elink_dev *cb, u32 shmem_base,
13074 				    u8 phy_index, u8 port)
13075 {
13076 	u32 ext_phy_config = 0;
13077 	switch (phy_index) {
13078 	case ELINK_EXT_PHY1:
13079 		ext_phy_config = REG_RD(cb, shmem_base +
13080 					      OFFSETOF(struct shmem_region,
13081 			dev_info.port_hw_config[port].external_phy_config));
13082 		break;
13083 	case ELINK_EXT_PHY2:
13084 		ext_phy_config = REG_RD(cb, shmem_base +
13085 					      OFFSETOF(struct shmem_region,
13086 			dev_info.port_hw_config[port].external_phy_config2));
13087 		break;
13088 	default:
13089 		ELINK_DEBUG_P1(cb, "Invalid phy_index %d\n", phy_index);
13090 		return ELINK_STATUS_ERROR;
13091 	}
13092 
13093 	return ext_phy_config;
13094 }
13095 #endif /* ELINK_EMUL_ONLY */
elink_populate_int_phy(struct elink_dev * cb,u32 shmem_base,u8 port,struct elink_phy * phy)13096 static elink_status_t elink_populate_int_phy(struct elink_dev *cb, u32 shmem_base, u8 port,
13097 				  struct elink_phy *phy)
13098 {
13099 	u32 phy_addr;
13100 	u32 chip_id;
13101 	u32 switch_cfg = (REG_RD(cb, shmem_base +
13102 				       OFFSETOF(struct shmem_region,
13103 			dev_info.port_feature_config[port].link_config)) &
13104 			  PORT_FEATURE_CONNECTED_SWITCH_MASK);
13105 	chip_id = (REG_RD(cb, MISC_REG_CHIP_NUM) << 16) |
13106 		((REG_RD(cb, MISC_REG_CHIP_REV) & 0xf) << 12);
13107 
13108 	ELINK_DEBUG_P1(cb, ":chip_id = 0x%x\n", chip_id);
13109 #ifndef EXCLUDE_WARPCORE
13110 	if (ELINK_USES_WARPCORE(chip_id)) {
13111 		u32 serdes_net_if;
13112 		phy_addr = REG_RD(cb,
13113 				  MISC_REG_WC0_CTRL_PHY_ADDR);
13114 		*phy = phy_warpcore;
13115 		if (REG_RD(cb, MISC_REG_PORT4MODE_EN_OVWR) == 0x3)
13116 			phy->flags |= ELINK_FLAGS_4_PORT_MODE;
13117 		else
13118 			phy->flags &= ~ELINK_FLAGS_4_PORT_MODE;
13119 			/* Check Dual mode */
13120 		serdes_net_if = (REG_RD(cb, shmem_base +
13121 					OFFSETOF(struct shmem_region, dev_info.
13122 					port_hw_config[port].default_cfg)) &
13123 				 PORT_HW_CFG_NET_SERDES_IF_MASK);
13124 		/* Set the appropriate supported and flags indications per
13125 		 * interface type of the chip
13126 		 */
13127 		switch (serdes_net_if) {
13128 		case PORT_HW_CFG_NET_SERDES_IF_SGMII:
13129 			phy->supported &= (ELINK_SUPPORTED_10baseT_Half |
13130 					   ELINK_SUPPORTED_10baseT_Full |
13131 					   ELINK_SUPPORTED_100baseT_Half |
13132 					   ELINK_SUPPORTED_100baseT_Full |
13133 					   ELINK_SUPPORTED_1000baseT_Full |
13134 					   ELINK_SUPPORTED_FIBRE |
13135 					   ELINK_SUPPORTED_Autoneg |
13136 					   ELINK_SUPPORTED_Pause |
13137 					   ELINK_SUPPORTED_Asym_Pause);
13138 			phy->media_type = ELINK_ETH_PHY_BASE_T;
13139 			break;
13140 		case PORT_HW_CFG_NET_SERDES_IF_XFI:
13141 			phy->supported &= (ELINK_SUPPORTED_1000baseT_Full |
13142 					   ELINK_SUPPORTED_10000baseT_Full |
13143 					   ELINK_SUPPORTED_FIBRE |
13144 					   ELINK_SUPPORTED_Pause |
13145 					   ELINK_SUPPORTED_Asym_Pause);
13146 			phy->media_type = ELINK_ETH_PHY_XFP_FIBER;
13147 			break;
13148 		case PORT_HW_CFG_NET_SERDES_IF_SFI:
13149 			phy->supported &= (ELINK_SUPPORTED_1000baseT_Full |
13150 					   ELINK_SUPPORTED_10000baseT_Full |
13151 					   ELINK_SUPPORTED_FIBRE |
13152 					   ELINK_SUPPORTED_Pause |
13153 					   ELINK_SUPPORTED_Asym_Pause);
13154 			phy->media_type = ELINK_ETH_PHY_SFPP_10G_FIBER;
13155 			break;
13156 		case PORT_HW_CFG_NET_SERDES_IF_KR:
13157 			phy->media_type = ELINK_ETH_PHY_KR;
13158 			phy->supported &= (ELINK_SUPPORTED_1000baseT_Full |
13159 					   ELINK_SUPPORTED_10000baseT_Full |
13160 					   ELINK_SUPPORTED_FIBRE |
13161 					   ELINK_SUPPORTED_Autoneg |
13162 					   ELINK_SUPPORTED_Pause |
13163 					   ELINK_SUPPORTED_Asym_Pause);
13164 			break;
13165 		case PORT_HW_CFG_NET_SERDES_IF_DXGXS:
13166 			phy->media_type = ELINK_ETH_PHY_KR;
13167 			phy->flags |= ELINK_FLAGS_WC_DUAL_MODE;
13168 			phy->supported &= (ELINK_SUPPORTED_20000baseMLD2_Full |
13169 					   ELINK_SUPPORTED_FIBRE |
13170 					   ELINK_SUPPORTED_Pause |
13171 					   ELINK_SUPPORTED_Asym_Pause);
13172 			break;
13173 		case PORT_HW_CFG_NET_SERDES_IF_KR2:
13174 			phy->media_type = ELINK_ETH_PHY_KR;
13175 			phy->flags |= ELINK_FLAGS_WC_DUAL_MODE;
13176 			phy->supported &= (ELINK_SUPPORTED_20000baseKR2_Full |
13177 					   ELINK_SUPPORTED_10000baseT_Full |
13178 					   ELINK_SUPPORTED_1000baseT_Full |
13179 					   ELINK_SUPPORTED_Autoneg |
13180 					   ELINK_SUPPORTED_FIBRE |
13181 					   ELINK_SUPPORTED_Pause |
13182 					   ELINK_SUPPORTED_Asym_Pause);
13183 			phy->flags &= ~ELINK_FLAGS_TX_ERROR_CHECK;
13184 			break;
13185 		default:
13186 			ELINK_DEBUG_P1(cb, "Unknown WC interface type 0x%x\n",
13187 				       serdes_net_if);
13188 			break;
13189 		}
13190 
13191 		/* Enable MDC/MDIO work-around for E3 A0 since free running MDC
13192 		 * was not set as expected. For B0, ECO will be enabled so there
13193 		 * won't be an issue there
13194 		 */
13195 		if (CHIP_REV(chip_id) == CHIP_REV_Ax)
13196 			phy->flags |= ELINK_FLAGS_MDC_MDIO_WA;
13197 		else
13198 			phy->flags |= ELINK_FLAGS_MDC_MDIO_WA_B0;
13199 	} else
13200 #endif
13201 	{
13202 		switch (switch_cfg) {
13203 #ifndef EXCLUDE_SERDES
13204 		case ELINK_SWITCH_CFG_1G:
13205 			phy_addr = REG_RD(cb,
13206 					  NIG_REG_SERDES0_CTRL_PHY_ADDR +
13207 					  port * 0x10);
13208 			*phy = phy_serdes;
13209 			break;
13210 #endif /* #ifndef EXCLUDE_SERDES */
13211 #ifndef EXCLUDE_XGXS
13212 		case ELINK_SWITCH_CFG_10G:
13213 			phy_addr = REG_RD(cb,
13214 					  NIG_REG_XGXS0_CTRL_PHY_ADDR +
13215 					  port * 0x18);
13216 			*phy = phy_xgxs;
13217 			break;
13218 #endif /* EXCLUDE_XGXS */
13219 		default:
13220 			ELINK_DEBUG_P0(cb, "Invalid switch_cfg\n");
13221 			return ELINK_STATUS_ERROR;
13222 		}
13223 	}
13224 	phy->addr = (u8)phy_addr;
13225 	phy->mdio_ctrl = elink_get_emac_base(cb,
13226 					    SHARED_HW_CFG_MDC_MDIO_ACCESS1_BOTH,
13227 					    port);
13228 	if (CHIP_IS_E2(chip_id))
13229 		phy->def_md_devad = ELINK_E2_DEFAULT_PHY_DEV_ADDR;
13230 	else
13231 		phy->def_md_devad = ELINK_DEFAULT_PHY_DEV_ADDR;
13232 
13233 	ELINK_DEBUG_P3(cb, "Internal phy port=%d, addr=0x%x, mdio_ctl=0x%x\n",
13234 		   port, phy->addr, phy->mdio_ctrl);
13235 
13236 	elink_populate_preemphasis(cb, shmem_base, phy, port, ELINK_INT_PHY);
13237 	return ELINK_STATUS_OK;
13238 }
13239 
13240 #ifndef ELINK_EMUL_ONLY
elink_populate_ext_phy(struct elink_dev * cb,u8 phy_index,u32 shmem_base,u32 shmem2_base,u8 port,struct elink_phy * phy)13241 static elink_status_t elink_populate_ext_phy(struct elink_dev *cb,
13242 				  u8 phy_index,
13243 				  u32 shmem_base,
13244 				  u32 shmem2_base,
13245 				  u8 port,
13246 				  struct elink_phy *phy)
13247 {
13248 	u32 ext_phy_config, phy_type, config2;
13249 	u32 mdc_mdio_access = SHARED_HW_CFG_MDC_MDIO_ACCESS1_BOTH;
13250 	ext_phy_config = elink_get_ext_phy_config(cb, shmem_base,
13251 						  phy_index, port);
13252 	phy_type = ELINK_XGXS_EXT_PHY_TYPE(ext_phy_config);
13253 	/* Select the phy type */
13254 	switch (phy_type) {
13255 #ifndef EXCLUDE_BCM8727_BCM8073
13256 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8073:
13257 		mdc_mdio_access = SHARED_HW_CFG_MDC_MDIO_ACCESS1_SWAPPED;
13258 		*phy = phy_8073;
13259 		break;
13260 #endif
13261 #ifndef EXCLUDE_BCM8705
13262 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8705:
13263 		*phy = phy_8705;
13264 		break;
13265 #endif
13266 #ifndef EXCLUDE_BCM87x6
13267 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8706:
13268 		*phy = phy_8706;
13269 		break;
13270 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8726:
13271 		mdc_mdio_access = SHARED_HW_CFG_MDC_MDIO_ACCESS1_EMAC1;
13272 		*phy = phy_8726;
13273 		break;
13274 #endif /* EXCLUDE_BCM87x6 */
13275 #ifndef EXCLUDE_BCM8727_BCM8073
13276 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8727_NOC:
13277 		/* BCM8727_NOC => BCM8727 no over current */
13278 		mdc_mdio_access = SHARED_HW_CFG_MDC_MDIO_ACCESS1_EMAC1;
13279 		*phy = phy_8727;
13280 		phy->flags |= ELINK_FLAGS_NOC;
13281 		break;
13282 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8722:
13283 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8727:
13284 		mdc_mdio_access = SHARED_HW_CFG_MDC_MDIO_ACCESS1_EMAC1;
13285 		*phy = phy_8727;
13286 		break;
13287 #endif
13288 #ifndef EXCLUDE_BCM8481
13289 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8481:
13290 		*phy = phy_8481;
13291 		break;
13292 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84823:
13293 		*phy = phy_84823;
13294 		break;
13295 #endif
13296 #ifndef EXCLUDE_BCM84833
13297 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833:
13298 		*phy = phy_84833;
13299 		break;
13300 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84834:
13301 		*phy = phy_84834;
13302 		break;
13303 #endif
13304 #ifndef EXCLUDE_BCM54618SE
13305 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM54616:
13306 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM54618SE:
13307 		*phy = phy_54618se;
13308 		if (phy_type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM54618SE)
13309 			phy->flags |= ELINK_FLAGS_EEE;
13310 		break;
13311 #endif
13312 #ifndef EXCLUDE_SFX7101
13313 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_SFX7101:
13314 		*phy = phy_7101;
13315 		break;
13316 #endif
13317 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_FAILURE:
13318 		*phy = phy_null;
13319 		return ELINK_STATUS_ERROR;
13320 	default:
13321 		*phy = phy_null;
13322 		/* In case external PHY wasn't found */
13323 		if ((phy_type != PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT) &&
13324 		    (phy_type != PORT_HW_CFG_XGXS_EXT_PHY_TYPE_NOT_CONN))
13325 			return ELINK_STATUS_ERROR;
13326 		return ELINK_STATUS_OK;
13327 	}
13328 
13329 	phy->addr = ELINK_XGXS_EXT_PHY_ADDR(ext_phy_config);
13330 	elink_populate_preemphasis(cb, shmem_base, phy, port, phy_index);
13331 
13332 	/* The shmem address of the phy version is located on different
13333 	 * structures. In case this structure is too old, do not set
13334 	 * the address
13335 	 */
13336 	config2 = REG_RD(cb, shmem_base + OFFSETOF(struct shmem_region,
13337 					dev_info.shared_hw_config.config2));
13338 	if (phy_index == ELINK_EXT_PHY1) {
13339 		phy->ver_addr = shmem_base + OFFSETOF(struct shmem_region,
13340 				port_mb[port].ext_phy_fw_version);
13341 
13342 		/* Check specific mdc mdio settings */
13343 		if (config2 & SHARED_HW_CFG_MDC_MDIO_ACCESS1_MASK)
13344 			mdc_mdio_access = config2 &
13345 			SHARED_HW_CFG_MDC_MDIO_ACCESS1_MASK;
13346 	} else {
13347 		u32 size = REG_RD(cb, shmem2_base);
13348 
13349 		if (size >
13350 		    OFFSETOF(struct shmem2_region, ext_phy_fw_version2)) {
13351 			phy->ver_addr = shmem2_base +
13352 			    OFFSETOF(struct shmem2_region,
13353 				     ext_phy_fw_version2[port]);
13354 		}
13355 		/* Check specific mdc mdio settings */
13356 		if (config2 & SHARED_HW_CFG_MDC_MDIO_ACCESS2_MASK)
13357 			mdc_mdio_access = (config2 &
13358 			SHARED_HW_CFG_MDC_MDIO_ACCESS2_MASK) >>
13359 			(SHARED_HW_CFG_MDC_MDIO_ACCESS2_SHIFT -
13360 			 SHARED_HW_CFG_MDC_MDIO_ACCESS1_SHIFT);
13361 	}
13362 	phy->mdio_ctrl = elink_get_emac_base(cb, mdc_mdio_access, port);
13363 
13364 	if (((phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833) ||
13365 	     (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84834)) &&
13366 	    (phy->ver_addr)) {
13367 		/* Remove 100Mb link supported for BCM84833/4 when phy fw
13368 		 * version lower than or equal to 1.39
13369 		 */
13370 		u32 raw_ver = REG_RD(cb, phy->ver_addr);
13371 		if (((raw_ver & 0x7F) <= 39) &&
13372 		    (((raw_ver & 0xF80) >> 7) <= 1))
13373 			phy->supported &= ~(ELINK_SUPPORTED_100baseT_Half |
13374 					    ELINK_SUPPORTED_100baseT_Full);
13375 	}
13376 
13377 	ELINK_DEBUG_P3(cb, "phy_type 0x%x port %d found in index %d\n",
13378 		   phy_type, port, phy_index);
13379 	ELINK_DEBUG_P2(cb, "             addr=0x%x, mdio_ctl=0x%x\n",
13380 		   phy->addr, phy->mdio_ctrl);
13381 	return ELINK_STATUS_OK;
13382 }
13383 #endif /* ELINK_EMUL_ONLY */
13384 
elink_populate_phy(struct elink_dev * cb,u8 phy_index,u32 shmem_base,u32 shmem2_base,u8 port,struct elink_phy * phy)13385 static elink_status_t elink_populate_phy(struct elink_dev *cb, u8 phy_index, u32 shmem_base,
13386 			      u32 shmem2_base, u8 port, struct elink_phy *phy)
13387 {
13388 	elink_status_t status = ELINK_STATUS_OK;
13389 	phy->type = PORT_HW_CFG_XGXS_EXT_PHY_TYPE_NOT_CONN;
13390 	if (phy_index == ELINK_INT_PHY)
13391 		return elink_populate_int_phy(cb, shmem_base, port, phy);
13392 #ifndef ELINK_EMUL_ONLY
13393 	status = elink_populate_ext_phy(cb, phy_index, shmem_base, shmem2_base,
13394 					port, phy);
13395 #endif /* ELINK_EMUL_ONLY */
13396 	return status;
13397 }
13398 
elink_phy_def_cfg(struct elink_params * params,struct elink_phy * phy,u8 phy_index)13399 static void elink_phy_def_cfg(struct elink_params *params,
13400 			      struct elink_phy *phy,
13401 			      u8 phy_index)
13402 {
13403 	struct elink_dev *cb = params->cb;
13404 	u32 link_config;
13405 	/* Populate the default phy configuration for MF mode */
13406 	if (phy_index == ELINK_EXT_PHY2) {
13407 		link_config = REG_RD(cb, params->shmem_base +
13408 				     OFFSETOF(struct shmem_region, dev_info.
13409 			port_feature_config[params->port].link_config2));
13410 		phy->speed_cap_mask = REG_RD(cb, params->shmem_base +
13411 					     OFFSETOF(struct shmem_region,
13412 						      dev_info.
13413 			port_hw_config[params->port].speed_capability_mask2));
13414 	} else {
13415 		link_config = REG_RD(cb, params->shmem_base +
13416 				     OFFSETOF(struct shmem_region, dev_info.
13417 				port_feature_config[params->port].link_config));
13418 		phy->speed_cap_mask = REG_RD(cb, params->shmem_base +
13419 					     OFFSETOF(struct shmem_region,
13420 						      dev_info.
13421 			port_hw_config[params->port].speed_capability_mask));
13422 	}
13423 	ELINK_DEBUG_P3(cb,
13424 	   "Default config phy idx %x cfg 0x%x speed_cap_mask 0x%x\n",
13425 	   phy_index, link_config, phy->speed_cap_mask);
13426 
13427 	phy->req_duplex = DUPLEX_FULL;
13428 	switch (link_config  & PORT_FEATURE_LINK_SPEED_MASK) {
13429 	case PORT_FEATURE_LINK_SPEED_10M_HALF:
13430 		phy->req_duplex = DUPLEX_HALF;
13431 		/* FALLTHROUGH */
13432 	case PORT_FEATURE_LINK_SPEED_10M_FULL:
13433 		phy->req_line_speed = ELINK_SPEED_10;
13434 		break;
13435 	case PORT_FEATURE_LINK_SPEED_100M_HALF:
13436 		phy->req_duplex = DUPLEX_HALF;
13437 		/* FALLTHROUGH */
13438 	case PORT_FEATURE_LINK_SPEED_100M_FULL:
13439 		phy->req_line_speed = ELINK_SPEED_100;
13440 		break;
13441 	case PORT_FEATURE_LINK_SPEED_1G:
13442 		phy->req_line_speed = ELINK_SPEED_1000;
13443 		break;
13444 	case PORT_FEATURE_LINK_SPEED_2_5G:
13445 		phy->req_line_speed = ELINK_SPEED_2500;
13446 		break;
13447 	case PORT_FEATURE_LINK_SPEED_10G_CX4:
13448 		phy->req_line_speed = ELINK_SPEED_10000;
13449 		break;
13450 	default:
13451 		phy->req_line_speed = ELINK_SPEED_AUTO_NEG;
13452 		break;
13453 	}
13454 
13455 	switch (link_config  & PORT_FEATURE_FLOW_CONTROL_MASK) {
13456 	case PORT_FEATURE_FLOW_CONTROL_AUTO:
13457 		phy->req_flow_ctrl = ELINK_FLOW_CTRL_AUTO;
13458 		break;
13459 	case PORT_FEATURE_FLOW_CONTROL_TX:
13460 		phy->req_flow_ctrl = ELINK_FLOW_CTRL_TX;
13461 		break;
13462 	case PORT_FEATURE_FLOW_CONTROL_RX:
13463 		phy->req_flow_ctrl = ELINK_FLOW_CTRL_RX;
13464 		break;
13465 	case PORT_FEATURE_FLOW_CONTROL_BOTH:
13466 		phy->req_flow_ctrl = ELINK_FLOW_CTRL_BOTH;
13467 		break;
13468 	default:
13469 		phy->req_flow_ctrl = ELINK_FLOW_CTRL_NONE;
13470 		break;
13471 	}
13472 }
13473 #endif /* EXCLUDE_COMMON_INIT */
13474 
elink_phy_selection(struct elink_params * params)13475 u32 elink_phy_selection(struct elink_params *params)
13476 {
13477 	u32 phy_config_swapped, prio_cfg;
13478 	u32 return_cfg = PORT_HW_CFG_PHY_SELECTION_HARDWARE_DEFAULT;
13479 
13480 	phy_config_swapped = params->multi_phy_config &
13481 		PORT_HW_CFG_PHY_SWAPPED_ENABLED;
13482 
13483 	prio_cfg = params->multi_phy_config &
13484 			PORT_HW_CFG_PHY_SELECTION_MASK;
13485 
13486 	if (phy_config_swapped) {
13487 		switch (prio_cfg) {
13488 		case PORT_HW_CFG_PHY_SELECTION_FIRST_PHY_PRIORITY:
13489 		     return_cfg = PORT_HW_CFG_PHY_SELECTION_SECOND_PHY_PRIORITY;
13490 		     break;
13491 		case PORT_HW_CFG_PHY_SELECTION_SECOND_PHY_PRIORITY:
13492 		     return_cfg = PORT_HW_CFG_PHY_SELECTION_FIRST_PHY_PRIORITY;
13493 		     break;
13494 		case PORT_HW_CFG_PHY_SELECTION_SECOND_PHY:
13495 		     return_cfg = PORT_HW_CFG_PHY_SELECTION_FIRST_PHY;
13496 		     break;
13497 		case PORT_HW_CFG_PHY_SELECTION_FIRST_PHY:
13498 		     return_cfg = PORT_HW_CFG_PHY_SELECTION_SECOND_PHY;
13499 		     break;
13500 		}
13501 	} else
13502 		return_cfg = prio_cfg;
13503 
13504 	return return_cfg;
13505 }
13506 
13507 #ifndef EXCLUDE_COMMON_INIT
elink_phy_probe(struct elink_params * params)13508 elink_status_t elink_phy_probe(struct elink_params *params)
13509 {
13510 	u8 phy_index, actual_phy_idx;
13511 	u32 phy_config_swapped, sync_offset, media_types;
13512 	struct elink_dev *cb = params->cb;
13513 	struct elink_phy *phy;
13514 	params->num_phys = 0;
13515 	ELINK_DEBUG_P0(cb, "Begin phy probe\n");
13516 #ifdef ELINK_INCLUDE_EMUL
13517 	if (CHIP_REV_IS_EMUL(params->chip_id))
13518 		return ELINK_STATUS_OK;
13519 #endif
13520 	phy_config_swapped = params->multi_phy_config &
13521 		PORT_HW_CFG_PHY_SWAPPED_ENABLED;
13522 
13523 	for (phy_index = ELINK_INT_PHY; phy_index < ELINK_MAX_PHYS;
13524 	      phy_index++) {
13525 		actual_phy_idx = phy_index;
13526 		if (phy_config_swapped) {
13527 			if (phy_index == ELINK_EXT_PHY1)
13528 				actual_phy_idx = ELINK_EXT_PHY2;
13529 			else if (phy_index == ELINK_EXT_PHY2)
13530 				actual_phy_idx = ELINK_EXT_PHY1;
13531 		}
13532 		ELINK_DEBUG_P3(cb, "phy_config_swapped %x, phy_index %x,"
13533 			       " actual_phy_idx %x\n", phy_config_swapped,
13534 			   phy_index, actual_phy_idx);
13535 		phy = &params->phy[actual_phy_idx];
13536 		if (elink_populate_phy(cb, phy_index, params->shmem_base,
13537 				       params->shmem2_base, params->port,
13538 				       phy) != ELINK_STATUS_OK) {
13539 			params->num_phys = 0;
13540 			ELINK_DEBUG_P1(cb, "phy probe failed in phy index %d\n",
13541 				   phy_index);
13542 			for (phy_index = ELINK_INT_PHY;
13543 			      phy_index < ELINK_MAX_PHYS;
13544 			      phy_index++)
13545 				*phy = phy_null;
13546 			return ELINK_STATUS_ERROR;
13547 		}
13548 		if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_NOT_CONN)
13549 			break;
13550 
13551 		if (params->feature_config_flags &
13552 		    ELINK_FEATURE_CONFIG_DISABLE_REMOTE_FAULT_DET)
13553 			phy->flags &= ~ELINK_FLAGS_TX_ERROR_CHECK;
13554 
13555 		if (!(params->feature_config_flags &
13556 		      ELINK_FEATURE_CONFIG_MT_SUPPORT))
13557 			phy->flags |= ELINK_FLAGS_MDC_MDIO_WA_G;
13558 
13559 		sync_offset = params->shmem_base +
13560 			OFFSETOF(struct shmem_region,
13561 			dev_info.port_hw_config[params->port].media_type);
13562 		media_types = REG_RD(cb, sync_offset);
13563 
13564 		/* Update media type for non-PMF sync only for the first time
13565 		 * In case the media type changes afterwards, it will be updated
13566 		 * using the update_status function
13567 		 */
13568 		if ((media_types & (PORT_HW_CFG_MEDIA_TYPE_PHY0_MASK <<
13569 				    (PORT_HW_CFG_MEDIA_TYPE_PHY1_SHIFT *
13570 				     actual_phy_idx))) == 0) {
13571 			media_types |= ((phy->media_type &
13572 					PORT_HW_CFG_MEDIA_TYPE_PHY0_MASK) <<
13573 				(PORT_HW_CFG_MEDIA_TYPE_PHY1_SHIFT *
13574 				 actual_phy_idx));
13575 		}
13576 		REG_WR(cb, sync_offset, media_types);
13577 
13578 		elink_phy_def_cfg(params, phy, phy_index);
13579 		params->num_phys++;
13580 	}
13581 
13582 	ELINK_DEBUG_P1(cb, "End phy probe. #phys found %x\n", params->num_phys);
13583 	return ELINK_STATUS_OK;
13584 }
13585 #endif /* EXCLUDE_COMMON_INIT */
13586 
13587 #ifdef ELINK_AUX_POWER
elink_phy_is_temperature_support(struct elink_params * params)13588 u8 elink_phy_is_temperature_support(struct elink_params *params)
13589 {
13590 	u8 phy_index;
13591 	struct elink_phy *phy;
13592 
13593 	/* This function check that at least one of the phy's supports
13594 	 * temperature read.
13595 	 */
13596 	for (phy_index = ELINK_INT_PHY; phy_index < params->num_phys;
13597 		phy_index++) {
13598 		phy = &params->phy[phy_index];
13599 		if (phy->flags & ELINK_FLAGS_TEMPERATURE)
13600 			return 1;
13601 	}
13602 	return 0;
13603 }
13604 #endif /* ELINK_AUX_POWER */
13605 #ifdef ELINK_INCLUDE_EMUL
elink_init_e3_emul_mac(struct elink_params * params,struct elink_vars * vars)13606 static elink_status_t elink_init_e3_emul_mac(struct elink_params *params,
13607 					     struct elink_vars *vars)
13608 {
13609 	struct elink_dev *cb = params->cb;
13610 	vars->line_speed = params->req_line_speed[0];
13611 	/* In case link speed is auto, set speed the highest as possible */
13612 	if (params->req_line_speed[0] == ELINK_SPEED_AUTO_NEG) {
13613 		if (params->feature_config_flags &
13614 		    ELINK_FEATURE_CONFIG_EMUL_DISABLE_XMAC)
13615 			vars->line_speed = ELINK_SPEED_2500;
13616 		else if (elink_is_4_port_mode(cb))
13617 			vars->line_speed = ELINK_SPEED_10000;
13618 		else
13619 			vars->line_speed = ELINK_SPEED_20000;
13620 	}
13621 	if (vars->line_speed < ELINK_SPEED_10000) {
13622 		if ((params->feature_config_flags &
13623 		     ELINK_FEATURE_CONFIG_EMUL_DISABLE_UMAC)) {
13624 			ELINK_DEBUG_P1(cb, "Invalid line speed %d while UMAC is"
13625 				   " disabled!\n", params->req_line_speed[0]);
13626 			return ELINK_STATUS_ERROR;
13627 		}
13628 		switch (vars->line_speed) {
13629 		case ELINK_SPEED_10:
13630 			vars->link_status = ELINK_LINK_10TFD;
13631 			break;
13632 		case ELINK_SPEED_100:
13633 			vars->link_status = ELINK_LINK_100TXFD;
13634 			break;
13635 		case ELINK_SPEED_1000:
13636 			vars->link_status = ELINK_LINK_1000TFD;
13637 			break;
13638 		case ELINK_SPEED_2500:
13639 			vars->link_status = ELINK_LINK_2500TFD;
13640 			break;
13641 		default:
13642 			ELINK_DEBUG_P1(cb, "Invalid line speed %d for UMAC\n",
13643 				   vars->line_speed);
13644 			return ELINK_STATUS_ERROR;
13645 		}
13646 		vars->link_status |= LINK_STATUS_LINK_UP;
13647 
13648 		if (params->loopback_mode == ELINK_LOOPBACK_UMAC)
13649 			elink_umac_enable(params, vars, 1);
13650 		else
13651 			elink_umac_enable(params, vars, 0);
13652 	} else {
13653 		/* Link speed >= 10000 requires XMAC enabled */
13654 		if (params->feature_config_flags &
13655 		    ELINK_FEATURE_CONFIG_EMUL_DISABLE_XMAC) {
13656 			ELINK_DEBUG_P1(cb, "Invalid line speed %d while XMAC is"
13657 				   " disabled!\n", params->req_line_speed[0]);
13658 		return ELINK_STATUS_ERROR;
13659 	}
13660 		/* Check link speed */
13661 		switch (vars->line_speed) {
13662 		case ELINK_SPEED_10000:
13663 			vars->link_status = ELINK_LINK_10GTFD;
13664 			break;
13665 		case ELINK_SPEED_20000:
13666 			vars->link_status = ELINK_LINK_20GTFD;
13667 			break;
13668 		default:
13669 			ELINK_DEBUG_P1(cb, "Invalid line speed %d for XMAC\n",
13670 				   vars->line_speed);
13671 			return ELINK_STATUS_ERROR;
13672 		}
13673 		vars->link_status |= LINK_STATUS_LINK_UP;
13674 		if (params->loopback_mode == ELINK_LOOPBACK_XMAC)
13675 			elink_xmac_enable(params, vars, 1);
13676 		else
13677 			elink_xmac_enable(params, vars, 0);
13678 	}
13679 		return ELINK_STATUS_OK;
13680 }
13681 
elink_init_emul(struct elink_params * params,struct elink_vars * vars)13682 static elink_status_t elink_init_emul(struct elink_params *params,
13683 			    struct elink_vars *vars)
13684 {
13685 	struct elink_dev *cb = params->cb;
13686 	if (CHIP_IS_E3(params->chip_id)) {
13687 		if (elink_init_e3_emul_mac(params, vars) !=
13688 		    ELINK_STATUS_OK)
13689 			return ELINK_STATUS_ERROR;
13690 	} else {
13691 		if (params->feature_config_flags &
13692 		    ELINK_FEATURE_CONFIG_EMUL_DISABLE_BMAC) {
13693 			vars->line_speed = ELINK_SPEED_1000;
13694 			vars->link_status = (LINK_STATUS_LINK_UP |
13695 					     ELINK_LINK_1000XFD);
13696 			if (params->loopback_mode ==
13697 			    ELINK_LOOPBACK_EMAC)
13698 				elink_emac_enable(params, vars, 1);
13699 			else
13700 				elink_emac_enable(params, vars, 0);
13701 		} else {
13702 			vars->line_speed = ELINK_SPEED_10000;
13703 			vars->link_status = (LINK_STATUS_LINK_UP |
13704 					     ELINK_LINK_10GTFD);
13705 			if (params->loopback_mode ==
13706 			    ELINK_LOOPBACK_BMAC)
13707 				elink_bmac_enable(params, vars, 1, 1);
13708 			else
13709 				elink_bmac_enable(params, vars, 0, 1);
13710 		}
13711 	}
13712 	vars->link_up = 1;
13713 	vars->duplex = DUPLEX_FULL;
13714 	vars->flow_ctrl = ELINK_FLOW_CTRL_NONE;
13715 
13716 #ifndef ELINK_AUX_POWER
13717 		if (CHIP_IS_E1X(params->chip_id))
13718 			elink_pbf_update(params, vars->flow_ctrl,
13719 					 vars->line_speed);
13720 #endif /* ELINK_AUX_POWER */
13721 		/* Disable drain */
13722 		REG_WR(cb, NIG_REG_EGRESS_DRAIN0_MODE + params->port*4, 0);
13723 
13724 		/* update shared memory */
13725 		elink_update_mng(params, vars->link_status);
13726 	return ELINK_STATUS_OK;
13727 }
13728 #endif // ELINK_INCLUDE_EMUL
13729 #ifdef ELINK_INCLUDE_FPGA
elink_init_fpga(struct elink_params * params,struct elink_vars * vars)13730 static elink_status_t elink_init_fpga(struct elink_params *params,
13731 			    struct elink_vars *vars)
13732 {
13733 	/* Enable on E1.5 FPGA */
13734 	struct elink_dev *cb = params->cb;
13735 	vars->duplex = DUPLEX_FULL;
13736 	vars->flow_ctrl = ELINK_FLOW_CTRL_NONE;
13737 	if (!(CHIP_IS_E1(params->chip_id))) {
13738 		vars->flow_ctrl = (ELINK_FLOW_CTRL_TX |
13739 				   ELINK_FLOW_CTRL_RX);
13740 		vars->link_status |= (LINK_STATUS_TX_FLOW_CONTROL_ENABLED |
13741 				      LINK_STATUS_RX_FLOW_CONTROL_ENABLED);
13742 	}
13743 	if (CHIP_IS_E3(params->chip_id)) {
13744 		vars->line_speed = params->req_line_speed[0];
13745 		switch (vars->line_speed) {
13746 		case ELINK_SPEED_AUTO_NEG:
13747 			vars->line_speed = ELINK_SPEED_2500;
13748 		case ELINK_SPEED_2500:
13749 			vars->link_status = ELINK_LINK_2500TFD;
13750 			break;
13751 		case ELINK_SPEED_1000:
13752 			vars->link_status = ELINK_LINK_1000XFD;
13753 			break;
13754 		case ELINK_SPEED_100:
13755 			vars->link_status = ELINK_LINK_100TXFD;
13756 			break;
13757 		case ELINK_SPEED_10:
13758 			vars->link_status = ELINK_LINK_10TFD;
13759 			break;
13760 		default:
13761 			ELINK_DEBUG_P1(cb, "Invalid link speed %d\n",
13762 				   params->req_line_speed[0]);
13763 			return ELINK_STATUS_ERROR;
13764 		}
13765 		vars->link_status |= LINK_STATUS_LINK_UP;
13766 		if (params->loopback_mode == ELINK_LOOPBACK_UMAC)
13767 			elink_umac_enable(params, vars, 1);
13768 		else
13769 			elink_umac_enable(params, vars, 0);
13770 	} else {
13771 		vars->line_speed = ELINK_SPEED_10000;
13772 		vars->link_status = (LINK_STATUS_LINK_UP | ELINK_LINK_10GTFD);
13773 		if (params->loopback_mode == ELINK_LOOPBACK_EMAC)
13774 			elink_emac_enable(params, vars, 1);
13775 		else
13776 			elink_emac_enable(params, vars, 0);
13777 	}
13778 	vars->link_up = 1;
13779 
13780 #ifndef ELINK_AUX_POWER
13781 	if (CHIP_IS_E1X(params->chip_id))
13782 		elink_pbf_update(params, vars->flow_ctrl,
13783 				 vars->line_speed);
13784 #endif /* ELINK_AUX_POWER */
13785 	/* Disable drain */
13786 	REG_WR(cb, NIG_REG_EGRESS_DRAIN0_MODE + params->port*4, 0);
13787 
13788 	/* Update shared memory */
13789 	elink_update_mng(params, vars->link_status);
13790 		return ELINK_STATUS_OK;
13791 }
13792 #endif // #ifdef ELINK_INCLUDE_FPGA
13793 #ifdef ELINK_INCLUDE_LOOPBACK
elink_init_bmac_loopback(struct elink_params * params,struct elink_vars * vars)13794 static void elink_init_bmac_loopback(struct elink_params *params,
13795 				     struct elink_vars *vars)
13796 {
13797 	struct elink_dev *cb = params->cb;
13798 		vars->link_up = 1;
13799 		vars->line_speed = ELINK_SPEED_10000;
13800 		vars->duplex = DUPLEX_FULL;
13801 		vars->flow_ctrl = ELINK_FLOW_CTRL_NONE;
13802 		vars->mac_type = ELINK_MAC_TYPE_BMAC;
13803 
13804 		vars->phy_flags = PHY_XGXS_FLAG;
13805 
13806 		elink_xgxs_deassert(params);
13807 
13808 		/* Set bmac loopback */
13809 		elink_bmac_enable(params, vars, 1, 1);
13810 
13811 		REG_WR(cb, NIG_REG_EGRESS_DRAIN0_MODE + params->port*4, 0);
13812 }
13813 
elink_init_emac_loopback(struct elink_params * params,struct elink_vars * vars)13814 static void elink_init_emac_loopback(struct elink_params *params,
13815 				     struct elink_vars *vars)
13816 {
13817 	struct elink_dev *cb = params->cb;
13818 		vars->link_up = 1;
13819 		vars->line_speed = ELINK_SPEED_1000;
13820 		vars->duplex = DUPLEX_FULL;
13821 		vars->flow_ctrl = ELINK_FLOW_CTRL_NONE;
13822 		vars->mac_type = ELINK_MAC_TYPE_EMAC;
13823 
13824 		vars->phy_flags = PHY_XGXS_FLAG;
13825 
13826 		elink_xgxs_deassert(params);
13827 		/* Set bmac loopback */
13828 		elink_emac_enable(params, vars, 1);
13829 		elink_emac_program(params, vars);
13830 		REG_WR(cb, NIG_REG_EGRESS_DRAIN0_MODE + params->port*4, 0);
13831 }
13832 
elink_init_xmac_loopback(struct elink_params * params,struct elink_vars * vars)13833 static void elink_init_xmac_loopback(struct elink_params *params,
13834 				     struct elink_vars *vars)
13835 {
13836 	struct elink_dev *cb = params->cb;
13837 	vars->link_up = 1;
13838 	if (!params->req_line_speed[0])
13839 		vars->line_speed = ELINK_SPEED_10000;
13840 	else
13841 		vars->line_speed = params->req_line_speed[0];
13842 	vars->duplex = DUPLEX_FULL;
13843 	vars->flow_ctrl = ELINK_FLOW_CTRL_NONE;
13844 	vars->mac_type = ELINK_MAC_TYPE_XMAC;
13845 	vars->phy_flags = PHY_XGXS_FLAG;
13846 	/* Set WC to loopback mode since link is required to provide clock
13847 	 * to the XMAC in 20G mode
13848 	 */
13849 	elink_set_aer_mmd(params, &params->phy[0]);
13850 	elink_warpcore_reset_lane(cb, &params->phy[0], 0);
13851 	params->phy[ELINK_INT_PHY].config_loopback(
13852 			&params->phy[ELINK_INT_PHY],
13853 			params);
13854 
13855 	elink_xmac_enable(params, vars, 1);
13856 	REG_WR(cb, NIG_REG_EGRESS_DRAIN0_MODE + params->port*4, 0);
13857 }
13858 
elink_init_umac_loopback(struct elink_params * params,struct elink_vars * vars)13859 static void elink_init_umac_loopback(struct elink_params *params,
13860 				     struct elink_vars *vars)
13861 {
13862 	struct elink_dev *cb = params->cb;
13863 	vars->link_up = 1;
13864 	vars->line_speed = ELINK_SPEED_1000;
13865 	vars->duplex = DUPLEX_FULL;
13866 	vars->flow_ctrl = ELINK_FLOW_CTRL_NONE;
13867 	vars->mac_type = ELINK_MAC_TYPE_UMAC;
13868 	vars->phy_flags = PHY_XGXS_FLAG;
13869 	elink_umac_enable(params, vars, 1);
13870 
13871 	REG_WR(cb, NIG_REG_EGRESS_DRAIN0_MODE + params->port*4, 0);
13872 }
13873 
elink_init_xgxs_loopback(struct elink_params * params,struct elink_vars * vars)13874 static void elink_init_xgxs_loopback(struct elink_params *params,
13875 				     struct elink_vars *vars)
13876 {
13877 	struct elink_dev *cb = params->cb;
13878 	struct elink_phy *int_phy = &params->phy[ELINK_INT_PHY];
13879 	vars->link_up = 1;
13880 	vars->flow_ctrl = ELINK_FLOW_CTRL_NONE;
13881 	vars->duplex = DUPLEX_FULL;
13882 	if (params->req_line_speed[0] == ELINK_SPEED_1000)
13883 		vars->line_speed = ELINK_SPEED_1000;
13884 	else if ((params->req_line_speed[0] == ELINK_SPEED_20000) ||
13885 		 (int_phy->flags & ELINK_FLAGS_WC_DUAL_MODE))
13886 		vars->line_speed = ELINK_SPEED_20000;
13887 	else
13888 		vars->line_speed = ELINK_SPEED_10000;
13889 
13890 	if (!ELINK_USES_WARPCORE(params->chip_id))
13891 		elink_xgxs_deassert(params);
13892 	elink_link_initialize(params, vars);
13893 
13894 	if (params->req_line_speed[0] == ELINK_SPEED_1000) {
13895 		if (ELINK_USES_WARPCORE(params->chip_id))
13896 			elink_umac_enable(params, vars, 0);
13897 		else {
13898 			elink_emac_program(params, vars);
13899 			elink_emac_enable(params, vars, 0);
13900 		}
13901 	} else {
13902 		if (ELINK_USES_WARPCORE(params->chip_id))
13903 			elink_xmac_enable(params, vars, 0);
13904 		else
13905 			elink_bmac_enable(params, vars, 0, 1);
13906 	}
13907 
13908 	if (params->loopback_mode == ELINK_LOOPBACK_XGXS) {
13909 		/* Set 10G XGXS loopback */
13910 		int_phy->config_loopback(int_phy, params);
13911 	} else {
13912 		/* Set external phy loopback */
13913 		u8 phy_index;
13914 		for (phy_index = ELINK_EXT_PHY1;
13915 		      phy_index < params->num_phys; phy_index++)
13916 			if (params->phy[phy_index].config_loopback)
13917 				params->phy[phy_index].config_loopback(
13918 					&params->phy[phy_index],
13919 					params);
13920 	}
13921 	REG_WR(cb, NIG_REG_EGRESS_DRAIN0_MODE + params->port*4, 0);
13922 
13923 	elink_set_led(params, vars, ELINK_LED_MODE_OPER, vars->line_speed);
13924 }
13925 #endif // #ifdef ELINK_INCLUDE_LOOPBACK
13926 
13927 #ifdef ELINK_ENHANCEMENTS
elink_set_rx_filter(struct elink_params * params,u8 en)13928 void elink_set_rx_filter(struct elink_params *params, u8 en)
13929 {
13930 	struct elink_dev *cb = params->cb;
13931 	u8 val = en * 0x1F;
13932 
13933 	/* Open / close the gate between the NIG and the BRB */
13934 	if (!CHIP_IS_E1X(params->chip_id))
13935 		val |= en * 0x20;
13936 	REG_WR(cb, NIG_REG_LLH0_BRB1_DRV_MASK + params->port*4, val);
13937 
13938 	if (!CHIP_IS_E1(params->chip_id)) {
13939 		REG_WR(cb, NIG_REG_LLH0_BRB1_DRV_MASK_MF + params->port*4,
13940 		       en*0x3);
13941 	}
13942 
13943 	REG_WR(cb, (params->port ? NIG_REG_LLH1_BRB1_NOT_MCP :
13944 		    NIG_REG_LLH0_BRB1_NOT_MCP), en);
13945 }
13946 #endif /* #ifdef ELINK_ENHANCEMENTS */
13947 #ifndef EXCLUDE_NON_COMMON_INIT
elink_avoid_link_flap(struct elink_params * params,struct elink_vars * vars)13948 static elink_status_t elink_avoid_link_flap(struct elink_params *params,
13949 					    struct elink_vars *vars)
13950 {
13951 	u32 phy_idx;
13952 	u32 dont_clear_stat, lfa_sts;
13953 	struct elink_dev *cb = params->cb;
13954 
13955 	elink_set_mdio_emac_per_phy(cb, params);
13956 	/* Sync the link parameters */
13957 	elink_link_status_update(params, vars);
13958 
13959 	/*
13960 	 * The module verification was already done by previous link owner,
13961 	 * so this call is meant only to get warning message
13962 	 */
13963 
13964 	for (phy_idx = ELINK_INT_PHY; phy_idx < params->num_phys; phy_idx++) {
13965 		struct elink_phy *phy = &params->phy[phy_idx];
13966 		if (phy->phy_specific_func) {
13967 			ELINK_DEBUG_P0(cb, "Calling PHY specific func\n");
13968 			phy->phy_specific_func(phy, params, ELINK_PHY_INIT);
13969 		}
13970 #ifdef ELINK_ENHANCEMENTS
13971 		if ((phy->media_type == ELINK_ETH_PHY_SFPP_10G_FIBER) ||
13972 		    (phy->media_type == ELINK_ETH_PHY_SFP_1G_FIBER) ||
13973 		    (phy->media_type == ELINK_ETH_PHY_DA_TWINAX)) {
13974 			elink_determine_sfp_media(phy, params);
13975 			elink_verify_sfp_module(phy, params);
13976 		}
13977 #endif
13978 	}
13979 	lfa_sts = REG_RD(cb, params->lfa_base +
13980 			 OFFSETOF(struct shmem_lfa,
13981 				  lfa_sts));
13982 
13983 	dont_clear_stat = lfa_sts & SHMEM_LFA_DONT_CLEAR_STAT;
13984 
13985 	/* Re-enable the NIG/MAC */
13986 	if (CHIP_IS_E3(params->chip_id)) {
13987 #ifndef EXCLUDE_WARPCORE
13988 		if (!dont_clear_stat) {
13989 			REG_WR(cb, GRCBASE_MISC +
13990 			       MISC_REGISTERS_RESET_REG_2_CLEAR,
13991 			       (MISC_REGISTERS_RESET_REG_2_MSTAT0 <<
13992 				params->port));
13993 			REG_WR(cb, GRCBASE_MISC +
13994 			       MISC_REGISTERS_RESET_REG_2_SET,
13995 			       (MISC_REGISTERS_RESET_REG_2_MSTAT0 <<
13996 				params->port));
13997 		}
13998 		if (vars->line_speed < ELINK_SPEED_10000)
13999 			elink_umac_enable(params, vars, 0);
14000 		else
14001 			elink_xmac_enable(params, vars, 0);
14002 #endif
14003 	} else {
14004 #ifndef EXCLUDE_BMAC2
14005 		if (vars->line_speed < ELINK_SPEED_10000)
14006 			elink_emac_enable(params, vars, 0);
14007 		else
14008 			elink_bmac_enable(params, vars, 0, !dont_clear_stat);
14009 #endif
14010 	}
14011 
14012 	/* Increment LFA count */
14013 	lfa_sts = ((lfa_sts & ~LINK_FLAP_AVOIDANCE_COUNT_MASK) |
14014 		   (((((lfa_sts & LINK_FLAP_AVOIDANCE_COUNT_MASK) >>
14015 		       LINK_FLAP_AVOIDANCE_COUNT_OFFSET) + 1) & 0xff)
14016 		    << LINK_FLAP_AVOIDANCE_COUNT_OFFSET));
14017 	/* Clear link flap reason */
14018 	lfa_sts &= ~LFA_LINK_FLAP_REASON_MASK;
14019 
14020 	REG_WR(cb, params->lfa_base +
14021 	       OFFSETOF(struct shmem_lfa, lfa_sts), lfa_sts);
14022 
14023 	/* Disable NIG DRAIN */
14024 	REG_WR(cb, NIG_REG_EGRESS_DRAIN0_MODE + params->port*4, 0);
14025 
14026 	/* Enable interrupts */
14027 	elink_link_int_enable(params);
14028 	return ELINK_STATUS_OK;
14029 }
14030 
elink_cannot_avoid_link_flap(struct elink_params * params,struct elink_vars * vars,int lfa_status)14031 static void elink_cannot_avoid_link_flap(struct elink_params *params,
14032 					 struct elink_vars *vars,
14033 					 int lfa_status)
14034 {
14035 	u32 lfa_sts, cfg_idx, tmp_val;
14036 	struct elink_dev *cb = params->cb;
14037 
14038 	elink_link_reset(params, vars, 1);
14039 
14040 	if (!params->lfa_base)
14041 		return;
14042 	/* Store the new link parameters */
14043 	REG_WR(cb, params->lfa_base +
14044 	       OFFSETOF(struct shmem_lfa, req_duplex),
14045 	       params->req_duplex[0] | (params->req_duplex[1] << 16));
14046 
14047 	REG_WR(cb, params->lfa_base +
14048 	       OFFSETOF(struct shmem_lfa, req_flow_ctrl),
14049 	       params->req_flow_ctrl[0] | (params->req_flow_ctrl[1] << 16));
14050 
14051 	REG_WR(cb, params->lfa_base +
14052 	       OFFSETOF(struct shmem_lfa, req_line_speed),
14053 	       params->req_line_speed[0] | (params->req_line_speed[1] << 16));
14054 
14055 	for (cfg_idx = 0; cfg_idx < SHMEM_LINK_CONFIG_SIZE; cfg_idx++) {
14056 		REG_WR(cb, params->lfa_base +
14057 		       OFFSETOF(struct shmem_lfa,
14058 				speed_cap_mask[cfg_idx]),
14059 		       params->speed_cap_mask[cfg_idx]);
14060 	}
14061 
14062 	tmp_val = REG_RD(cb, params->lfa_base +
14063 			 OFFSETOF(struct shmem_lfa, additional_config));
14064 	tmp_val &= ~REQ_FC_AUTO_ADV_MASK;
14065 	tmp_val |= params->req_fc_auto_adv;
14066 
14067 	REG_WR(cb, params->lfa_base +
14068 	       OFFSETOF(struct shmem_lfa, additional_config), tmp_val);
14069 
14070 	lfa_sts = REG_RD(cb, params->lfa_base +
14071 			 OFFSETOF(struct shmem_lfa, lfa_sts));
14072 
14073 	/* Clear the "Don't Clear Statistics" bit, and set reason */
14074 	lfa_sts &= ~SHMEM_LFA_DONT_CLEAR_STAT;
14075 
14076 	/* Set link flap reason */
14077 	lfa_sts &= ~LFA_LINK_FLAP_REASON_MASK;
14078 	lfa_sts |= ((lfa_status & LFA_LINK_FLAP_REASON_MASK) <<
14079 		    LFA_LINK_FLAP_REASON_OFFSET);
14080 
14081 	/* Increment link flap counter */
14082 	lfa_sts = ((lfa_sts & ~LINK_FLAP_COUNT_MASK) |
14083 		   (((((lfa_sts & LINK_FLAP_COUNT_MASK) >>
14084 		       LINK_FLAP_COUNT_OFFSET) + 1) & 0xff)
14085 		    << LINK_FLAP_COUNT_OFFSET));
14086 	REG_WR(cb, params->lfa_base +
14087 	       OFFSETOF(struct shmem_lfa, lfa_sts), lfa_sts);
14088 	/* Proceed with regular link initialization */
14089 }
14090 
elink_phy_init(struct elink_params * params,struct elink_vars * vars)14091 elink_status_t elink_phy_init(struct elink_params *params, struct elink_vars *vars)
14092 {
14093 	int lfa_status;
14094 	struct elink_dev *cb = params->cb;
14095 	ELINK_DEBUG_P0(cb, "Phy Initialization started\n");
14096 	ELINK_DEBUG_P2(cb, "(1) req_speed %d, req_flowctrl %d\n",
14097 		   params->req_line_speed[0], params->req_flow_ctrl[0]);
14098 	ELINK_DEBUG_P2(cb, "(2) req_speed %d, req_flowctrl %d\n",
14099 		   params->req_line_speed[1], params->req_flow_ctrl[1]);
14100 	ELINK_DEBUG_P1(cb, "req_adv_flow_ctrl 0x%x\n", params->req_fc_auto_adv);
14101 	vars->link_status = 0;
14102 	vars->phy_link_up = 0;
14103 	vars->link_up = 0;
14104 	vars->line_speed = 0;
14105 	vars->duplex = DUPLEX_FULL;
14106 	vars->flow_ctrl = ELINK_FLOW_CTRL_NONE;
14107 	vars->mac_type = ELINK_MAC_TYPE_NONE;
14108 	vars->phy_flags = 0;
14109 	vars->check_kr2_recovery_cnt = 0;
14110 	params->link_flags = ELINK_PHY_INITIALIZED;
14111 #ifdef ELINK_ENHANCEMENTS
14112 	/* Driver opens NIG-BRB filters */
14113 	elink_set_rx_filter(params, 1);
14114 #endif
14115 	elink_chng_link_count(params, 1);
14116 	/* Check if link flap can be avoided */
14117 	lfa_status = elink_check_lfa(params);
14118 
14119 	if (lfa_status == 0) {
14120 		ELINK_DEBUG_P0(cb, "Link Flap Avoidance in progress\n");
14121 		return elink_avoid_link_flap(params, vars);
14122 	}
14123 
14124 	ELINK_DEBUG_P1(cb, "Cannot avoid link flap lfa_sta=0x%x\n",
14125 		       lfa_status);
14126 	elink_cannot_avoid_link_flap(params, vars, lfa_status);
14127 
14128 	/* Disable attentions */
14129 	elink_bits_dis(cb, NIG_REG_MASK_INTERRUPT_PORT0 + params->port*4,
14130 		       (ELINK_NIG_MASK_XGXS0_LINK_STATUS |
14131 			ELINK_NIG_MASK_XGXS0_LINK10G |
14132 			ELINK_NIG_MASK_SERDES0_LINK_STATUS |
14133 			ELINK_NIG_MASK_MI_INT));
14134 #ifdef ELINK_INCLUDE_EMUL
14135 	if (!(params->feature_config_flags &
14136 	      ELINK_FEATURE_CONFIG_EMUL_DISABLE_EMAC))
14137 #endif //ELINK_INCLUDE_EMUL
14138 
14139 	elink_emac_init(params, vars);
14140 
14141 	if (params->feature_config_flags & ELINK_FEATURE_CONFIG_PFC_ENABLED)
14142 		vars->link_status |= LINK_STATUS_PFC_ENABLED;
14143 
14144 	if ((params->num_phys == 0) &&
14145 	    !CHIP_REV_IS_SLOW(params->chip_id)) {
14146 		ELINK_DEBUG_P0(cb, "No phy found for initialization !!\n");
14147 		return ELINK_STATUS_ERROR;
14148 	}
14149 	set_phy_vars(params, vars);
14150 
14151 	ELINK_DEBUG_P1(cb, "Num of phys on board: %d\n", params->num_phys);
14152 #ifdef ELINK_INCLUDE_FPGA
14153 	if (CHIP_REV_IS_FPGA(params->chip_id)) {
14154 		return elink_init_fpga(params, vars);
14155 	} else
14156 #endif /* ELINK_INCLUDE_FPGA */
14157 #ifdef ELINK_INCLUDE_EMUL
14158 	if (CHIP_REV_IS_EMUL(params->chip_id)) {
14159 		return elink_init_emul(params, vars);
14160 	} else
14161 #endif /* ELINK_INCLUDE_EMUL */
14162 #ifdef ELINK_INCLUDE_LOOPBACK
14163 	switch (params->loopback_mode) {
14164 	case ELINK_LOOPBACK_BMAC:
14165 		elink_init_bmac_loopback(params, vars);
14166 		break;
14167 	case ELINK_LOOPBACK_EMAC:
14168 		elink_init_emac_loopback(params, vars);
14169 		break;
14170 	case ELINK_LOOPBACK_XMAC:
14171 		elink_init_xmac_loopback(params, vars);
14172 		break;
14173 	case ELINK_LOOPBACK_UMAC:
14174 		elink_init_umac_loopback(params, vars);
14175 		break;
14176 	case ELINK_LOOPBACK_XGXS:
14177 	case ELINK_LOOPBACK_EXT_PHY:
14178 		elink_init_xgxs_loopback(params, vars);
14179 		break;
14180 	default:
14181 #endif /* ELINK_INCLUDE_LOOPBACK */
14182 #ifndef EXCLUDE_XGXS
14183 		if (!CHIP_IS_E3(params->chip_id)) {
14184 			if (params->switch_cfg == ELINK_SWITCH_CFG_10G)
14185 				elink_xgxs_deassert(params);
14186 #ifndef EXCLUDE_SERDES
14187 			else
14188 				elink_serdes_deassert(cb, params->port);
14189 #endif // EXCLUDE_SERDES
14190 		}
14191 #endif /* EXCLUDE_XGXS */
14192 		elink_link_initialize(params, vars);
14193 		MSLEEP(cb, 30);
14194 		elink_link_int_enable(params);
14195 #ifdef ELINK_INCLUDE_LOOPBACK
14196 		break;
14197 	}
14198 #endif // ELINK_INCLUDE_LOOPBACK
14199 	elink_update_mng(params, vars->link_status);
14200 
14201 #ifndef EXCLUDE_WARPCORE
14202 	elink_update_mng_eee(params, vars->eee_status);
14203 #endif /* #ifndef EXCLUDE_BCM84833 */
14204 	return ELINK_STATUS_OK;
14205 }
14206 
14207 #ifndef EXCLUDE_LINK_RESET
elink_link_reset(struct elink_params * params,struct elink_vars * vars,u8 reset_ext_phy)14208 elink_status_t elink_link_reset(struct elink_params *params, struct elink_vars *vars,
14209 		     u8 reset_ext_phy)
14210 {
14211 	struct elink_dev *cb = params->cb;
14212 	u8 phy_index, port = params->port, clear_latch_ind = 0;
14213 	ELINK_DEBUG_P1(cb, "Resetting the link of port %d\n", port);
14214 	/* Disable attentions */
14215 	vars->link_status = 0;
14216 	elink_chng_link_count(params, 1);
14217 	elink_update_mng(params, vars->link_status);
14218 #ifndef EXCLUDE_WARPCORE
14219 	vars->eee_status &= ~(SHMEM_EEE_LP_ADV_STATUS_MASK |
14220 			      SHMEM_EEE_ACTIVE_BIT);
14221 	elink_update_mng_eee(params, vars->eee_status);
14222 #endif /* #ifndef EXCLUDE_BCM84833 */
14223 	elink_bits_dis(cb, NIG_REG_MASK_INTERRUPT_PORT0 + port*4,
14224 		       (ELINK_NIG_MASK_XGXS0_LINK_STATUS |
14225 			ELINK_NIG_MASK_XGXS0_LINK10G |
14226 			ELINK_NIG_MASK_SERDES0_LINK_STATUS |
14227 			ELINK_NIG_MASK_MI_INT));
14228 
14229 	/* Activate nig drain */
14230 	REG_WR(cb, NIG_REG_EGRESS_DRAIN0_MODE + port*4, 1);
14231 
14232 	/* Disable nig egress interface */
14233 	if (!CHIP_IS_E3(params->chip_id)) {
14234 		REG_WR(cb, NIG_REG_BMAC0_OUT_EN + port*4, 0);
14235 		REG_WR(cb, NIG_REG_EGRESS_EMAC0_OUT_EN + port*4, 0);
14236 	}
14237 
14238 #ifdef ELINK_INCLUDE_EMUL
14239 	/* Stop BigMac rx */
14240 	if (!(params->feature_config_flags &
14241 	      ELINK_FEATURE_CONFIG_EMUL_DISABLE_BMAC))
14242 #endif // ELINK_INCLUDE_EMUL
14243 #if !defined(EXCLUDE_BMAC2) && !defined(EXCLUDE_BMAC1)
14244 		if (!CHIP_IS_E3(params->chip_id))
14245 			elink_set_bmac_rx(cb, params->chip_id, port, 0);
14246 #endif //  !defined(EXCLUDE_BMAC2) && !defined(EXCLUDE_BMAC1)
14247 #ifndef EXCLUDE_WARPCORE
14248 #ifdef ELINK_INCLUDE_EMUL
14249 	/* Stop XMAC/UMAC rx */
14250 	if (!(params->feature_config_flags &
14251 	      ELINK_FEATURE_CONFIG_EMUL_DISABLE_XMAC))
14252 #endif // ELINK_INCLUDE_EMUL
14253 		if (CHIP_IS_E3(params->chip_id) &&
14254 		!CHIP_REV_IS_FPGA(params->chip_id)) {
14255 			elink_set_xmac_rxtx(params, 0);
14256 			elink_set_umac_rxtx(params, 0);
14257 		}
14258 #endif // EXCLUDE_WARPCORE
14259 	/* Disable emac */
14260 	if (!CHIP_IS_E3(params->chip_id))
14261 		REG_WR(cb, NIG_REG_NIG_EMAC0_EN + port*4, 0);
14262 
14263 	MSLEEP(cb, 10);
14264 	/* The PHY reset is controlled by GPIO 1
14265 	 * Hold it as vars low
14266 	 */
14267 	 /* Clear link led */
14268 	elink_set_mdio_emac_per_phy(cb, params);
14269 	elink_set_led(params, vars, ELINK_LED_MODE_OFF, 0);
14270 
14271 	if (reset_ext_phy && (!CHIP_REV_IS_SLOW(params->chip_id))) {
14272 		for (phy_index = ELINK_EXT_PHY1; phy_index < params->num_phys;
14273 		      phy_index++) {
14274 			if (params->phy[phy_index].link_reset) {
14275 				elink_set_aer_mmd(params,
14276 						  &params->phy[phy_index]);
14277 				params->phy[phy_index].link_reset(
14278 					&params->phy[phy_index],
14279 					params);
14280 			}
14281 			if (params->phy[phy_index].flags &
14282 			    ELINK_FLAGS_REARM_LATCH_SIGNAL)
14283 				clear_latch_ind = 1;
14284 		}
14285 	}
14286 
14287 	if (clear_latch_ind) {
14288 		/* Clear latching indication */
14289 		elink_rearm_latch_signal(cb, port, 0);
14290 		elink_bits_dis(cb, NIG_REG_LATCH_BC_0 + port*4,
14291 			       1 << ELINK_NIG_LATCH_BC_ENABLE_MI_INT);
14292 	}
14293 #if defined(ELINK_INCLUDE_EMUL) || defined(ELINK_INCLUDE_FPGA)
14294 	if (!CHIP_REV_IS_SLOW(params->chip_id))
14295 #endif
14296 	if (params->phy[ELINK_INT_PHY].link_reset)
14297 		params->phy[ELINK_INT_PHY].link_reset(
14298 			&params->phy[ELINK_INT_PHY], params);
14299 
14300 	/* Disable nig ingress interface */
14301 	if (!CHIP_IS_E3(params->chip_id)) {
14302 		/* Reset BigMac */
14303 		REG_WR(cb, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR,
14304 		       (MISC_REGISTERS_RESET_REG_2_RST_BMAC0 << port));
14305 		REG_WR(cb, NIG_REG_BMAC0_IN_EN + port*4, 0);
14306 		REG_WR(cb, NIG_REG_EMAC0_IN_EN + port*4, 0);
14307 	} else {
14308 #ifndef EXCLUDE_WARPCORE
14309 		u32 xmac_base = (params->port) ? GRCBASE_XMAC1 : GRCBASE_XMAC0;
14310 		elink_set_xumac_nig(params, 0, 0);
14311 		if (REG_RD(cb, MISC_REG_RESET_REG_2) &
14312 		    MISC_REGISTERS_RESET_REG_2_XMAC)
14313 			REG_WR(cb, xmac_base + XMAC_REG_CTRL,
14314 			       XMAC_CTRL_REG_SOFT_RESET);
14315 #endif // EXCLUDE_WARPCORE
14316 	}
14317 	vars->link_up = 0;
14318 	vars->phy_flags = 0;
14319 	return ELINK_STATUS_OK;
14320 }
14321 #endif // EXCLUDE_LINK_RESET
14322 #ifndef ELINK_AUX_POWER
elink_lfa_reset(struct elink_params * params,struct elink_vars * vars)14323 elink_status_t elink_lfa_reset(struct elink_params *params,
14324 			       struct elink_vars *vars)
14325 {
14326 	struct elink_dev *cb = params->cb;
14327 	vars->link_up = 0;
14328 	vars->phy_flags = 0;
14329 	params->link_flags &= ~ELINK_PHY_INITIALIZED;
14330 	if (!params->lfa_base)
14331 		return elink_link_reset(params, vars, 1);
14332 	/*
14333 	 * Activate NIG drain so that during this time the device won't send
14334 	 * anything while it is unable to response.
14335 	 */
14336 	REG_WR(cb, NIG_REG_EGRESS_DRAIN0_MODE + params->port*4, 1);
14337 
14338 	/*
14339 	 * Close gracefully the gate from BMAC to NIG such that no half packets
14340 	 * are passed.
14341 	 */
14342 	if (!CHIP_IS_E3(params->chip_id))
14343 		elink_set_bmac_rx(cb, params->chip_id, params->port, 0);
14344 
14345 	if (CHIP_IS_E3(params->chip_id)) {
14346 		elink_set_xmac_rxtx(params, 0);
14347 		elink_set_umac_rxtx(params, 0);
14348 	}
14349 	/* Wait 10ms for the pipe to clean up*/
14350 	MSLEEP(cb, 10);
14351 
14352 #ifdef ELINK_ENHANCEMENTS
14353 	/* Clean the NIG-BRB using the network filters in a way that will
14354 	 * not cut a packet in the middle.
14355 	 */
14356 	elink_set_rx_filter(params, 0);
14357 #endif
14358 
14359 	/*
14360 	 * Re-open the gate between the BMAC and the NIG, after verifying the
14361 	 * gate to the BRB is closed, otherwise packets may arrive to the
14362 	 * firmware before driver had initialized it. The target is to achieve
14363 	 * minimum management protocol down time.
14364 	 */
14365 	if (!CHIP_IS_E3(params->chip_id))
14366 		elink_set_bmac_rx(cb, params->chip_id, params->port, 1);
14367 
14368 	if (CHIP_IS_E3(params->chip_id)) {
14369 		elink_set_xmac_rxtx(params, 1);
14370 		elink_set_umac_rxtx(params, 1);
14371 	}
14372 	/* Disable NIG drain */
14373 	REG_WR(cb, NIG_REG_EGRESS_DRAIN0_MODE + params->port*4, 0);
14374 	return ELINK_STATUS_OK;
14375 }
14376 #endif /* ELINK_AUX_POWER */
14377 #endif // EXCLUDE_NON_COMMON_INIT
14378 
14379 /****************************************************************************/
14380 /*				Common function				    */
14381 /****************************************************************************/
14382 #ifndef EXCLUDE_COMMON_INIT
14383 #ifndef ELINK_EMUL_ONLY
14384 #ifndef EXCLUDE_BCM8727_BCM8073
elink_8073_common_init_phy(struct elink_dev * cb,u32 shmem_base_path[],u32 shmem2_base_path[],u8 phy_index,u32 chip_id)14385 static elink_status_t elink_8073_common_init_phy(struct elink_dev *cb,
14386 				      u32 shmem_base_path[],
14387 				      u32 shmem2_base_path[], u8 phy_index,
14388 				      u32 chip_id)
14389 {
14390 	struct elink_phy phy[PORT_MAX];
14391 	struct elink_phy *phy_blk[PORT_MAX];
14392 	u16 val;
14393 	s8 port = 0;
14394 	s8 port_of_path = 0;
14395 	u32 swap_val, swap_override;
14396 	swap_val = REG_RD(cb,  NIG_REG_PORT_SWAP);
14397 	swap_override = REG_RD(cb,  NIG_REG_STRAP_OVERRIDE);
14398 	port ^= (swap_val && swap_override);
14399 	elink_ext_phy_hw_reset(cb, port);
14400 	/* PART1 - Reset both phys */
14401 	for (port = PORT_MAX - 1; port >= PORT_0; port--) {
14402 		u32 shmem_base, shmem2_base;
14403 		/* In E2, same phy is using for port0 of the two paths */
14404 		if (CHIP_IS_E1X(chip_id)) {
14405 			shmem_base = shmem_base_path[0];
14406 			shmem2_base = shmem2_base_path[0];
14407 			port_of_path = port;
14408 		} else {
14409 			shmem_base = shmem_base_path[port];
14410 			shmem2_base = shmem2_base_path[port];
14411 			port_of_path = 0;
14412 		}
14413 
14414 		/* Extract the ext phy address for the port */
14415 		if (elink_populate_phy(cb, phy_index, shmem_base, shmem2_base,
14416 				       port_of_path, &phy[port]) !=
14417 		    ELINK_STATUS_OK) {
14418 			ELINK_DEBUG_P0(cb, "populate_phy failed\n");
14419 			return ELINK_STATUS_ERROR;
14420 		}
14421 		/* Disable attentions */
14422 		elink_bits_dis(cb, NIG_REG_MASK_INTERRUPT_PORT0 +
14423 			       port_of_path*4,
14424 			       (ELINK_NIG_MASK_XGXS0_LINK_STATUS |
14425 				ELINK_NIG_MASK_XGXS0_LINK10G |
14426 				ELINK_NIG_MASK_SERDES0_LINK_STATUS |
14427 				ELINK_NIG_MASK_MI_INT));
14428 
14429 		/* Need to take the phy out of low power mode in order
14430 		 * to write to access its registers
14431 		 */
14432 		ELINK_SET_GPIO(cb, MISC_REGISTERS_GPIO_2,
14433 			       MISC_REGISTERS_GPIO_OUTPUT_HIGH,
14434 			       port);
14435 
14436 		/* Reset the phy */
14437 		elink_cl45_write(cb, &phy[port],
14438 				 MDIO_PMA_DEVAD,
14439 				 MDIO_PMA_REG_CTRL,
14440 				 1<<15);
14441 	}
14442 
14443 	/* Add delay of 150ms after reset */
14444 	MSLEEP(cb, 150);
14445 
14446 	if (phy[PORT_0].addr & 0x1) {
14447 		phy_blk[PORT_0] = &(phy[PORT_1]);
14448 		phy_blk[PORT_1] = &(phy[PORT_0]);
14449 	} else {
14450 		phy_blk[PORT_0] = &(phy[PORT_0]);
14451 		phy_blk[PORT_1] = &(phy[PORT_1]);
14452 	}
14453 
14454 	/* PART2 - Download firmware to both phys */
14455 	for (port = PORT_MAX - 1; port >= PORT_0; port--) {
14456 		if (CHIP_IS_E1X(chip_id))
14457 			port_of_path = port;
14458 		else
14459 			port_of_path = 0;
14460 
14461 		ELINK_DEBUG_P1(cb, "Loading spirom for phy address 0x%x\n",
14462 			   phy_blk[port]->addr);
14463 		if (elink_8073_8727_external_rom_boot(cb, phy_blk[port],
14464 						      port_of_path))
14465 			return ELINK_STATUS_ERROR;
14466 
14467 		/* Only set bit 10 = 1 (Tx power down) */
14468 		elink_cl45_read(cb, phy_blk[port],
14469 				MDIO_PMA_DEVAD,
14470 				MDIO_PMA_REG_TX_POWER_DOWN, &val);
14471 
14472 		/* Phase1 of TX_POWER_DOWN reset */
14473 		elink_cl45_write(cb, phy_blk[port],
14474 				 MDIO_PMA_DEVAD,
14475 				 MDIO_PMA_REG_TX_POWER_DOWN,
14476 				 (val | 1<<10));
14477 	}
14478 
14479 	/* Toggle Transmitter: Power down and then up with 600ms delay
14480 	 * between
14481 	 */
14482 	MSLEEP(cb, 600);
14483 
14484 	/* PART3 - complete TX_POWER_DOWN process, and set GPIO2 back to low */
14485 	for (port = PORT_MAX - 1; port >= PORT_0; port--) {
14486 		/* Phase2 of POWER_DOWN_RESET */
14487 		/* Release bit 10 (Release Tx power down) */
14488 		elink_cl45_read(cb, phy_blk[port],
14489 				MDIO_PMA_DEVAD,
14490 				MDIO_PMA_REG_TX_POWER_DOWN, &val);
14491 
14492 		elink_cl45_write(cb, phy_blk[port],
14493 				MDIO_PMA_DEVAD,
14494 				MDIO_PMA_REG_TX_POWER_DOWN, (val & (~(1<<10))));
14495 		MSLEEP(cb, 15);
14496 
14497 		/* Read modify write the SPI-ROM version select register */
14498 		elink_cl45_read(cb, phy_blk[port],
14499 				MDIO_PMA_DEVAD,
14500 				MDIO_PMA_REG_EDC_FFE_MAIN, &val);
14501 		elink_cl45_write(cb, phy_blk[port],
14502 				 MDIO_PMA_DEVAD,
14503 				 MDIO_PMA_REG_EDC_FFE_MAIN, (val | (1<<12)));
14504 
14505 		/* set GPIO2 back to LOW */
14506 		ELINK_SET_GPIO(cb, MISC_REGISTERS_GPIO_2,
14507 			       MISC_REGISTERS_GPIO_OUTPUT_LOW, port);
14508 	}
14509 	return ELINK_STATUS_OK;
14510 }
14511 #endif /* EXCLUDE_BCM8727_BCM8073 */
14512 #ifndef EXCLUDE_BCM87x6
elink_8726_common_init_phy(struct elink_dev * cb,u32 shmem_base_path[],u32 shmem2_base_path[],u8 phy_index,u32 chip_id)14513 static elink_status_t elink_8726_common_init_phy(struct elink_dev *cb,
14514 				      u32 shmem_base_path[],
14515 				      u32 shmem2_base_path[], u8 phy_index,
14516 				      u32 chip_id)
14517 {
14518 	u32 val;
14519 	s8 port;
14520 	struct elink_phy phy;
14521 	/* Use port1 because of the static port-swap */
14522 	/* Enable the module detection interrupt */
14523 	val = REG_RD(cb, MISC_REG_GPIO_EVENT_EN);
14524 	val |= ((1<<MISC_REGISTERS_GPIO_3)|
14525 		(1<<(MISC_REGISTERS_GPIO_3 + MISC_REGISTERS_GPIO_PORT_SHIFT)));
14526 	REG_WR(cb, MISC_REG_GPIO_EVENT_EN, val);
14527 
14528 	elink_ext_phy_hw_reset(cb, 0);
14529 	MSLEEP(cb, 5);
14530 	for (port = 0; port < PORT_MAX; port++) {
14531 		u32 shmem_base, shmem2_base;
14532 
14533 		/* In E2, same phy is using for port0 of the two paths */
14534 		if (CHIP_IS_E1X(chip_id)) {
14535 			shmem_base = shmem_base_path[0];
14536 			shmem2_base = shmem2_base_path[0];
14537 		} else {
14538 			shmem_base = shmem_base_path[port];
14539 			shmem2_base = shmem2_base_path[port];
14540 		}
14541 		/* Extract the ext phy address for the port */
14542 		if (elink_populate_phy(cb, phy_index, shmem_base, shmem2_base,
14543 				       port, &phy) !=
14544 		    ELINK_STATUS_OK) {
14545 			ELINK_DEBUG_P0(cb, "populate phy failed\n");
14546 			return ELINK_STATUS_ERROR;
14547 		}
14548 
14549 		/* Reset phy*/
14550 		elink_cl45_write(cb, &phy,
14551 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_GEN_CTRL, 0x0001);
14552 
14553 
14554 		/* Set fault module detected LED on */
14555 		ELINK_SET_GPIO(cb, MISC_REGISTERS_GPIO_0,
14556 			       MISC_REGISTERS_GPIO_HIGH,
14557 			       port);
14558 	}
14559 
14560 	return ELINK_STATUS_OK;
14561 }
14562 #endif /* #ifndef EXCLUDE_BCM87x6 */
14563 #ifndef EXCLUDE_BCM8727_BCM8073
elink_get_ext_phy_reset_gpio(struct elink_dev * cb,u32 shmem_base,u8 * io_gpio,u8 * io_port)14564 static void elink_get_ext_phy_reset_gpio(struct elink_dev *cb, u32 shmem_base,
14565 					 u8 *io_gpio, u8 *io_port)
14566 {
14567 
14568 	u32 phy_gpio_reset = REG_RD(cb, shmem_base +
14569 					  OFFSETOF(struct shmem_region,
14570 				dev_info.port_hw_config[PORT_0].default_cfg));
14571 	switch (phy_gpio_reset) {
14572 	case PORT_HW_CFG_EXT_PHY_GPIO_RST_GPIO0_P0:
14573 		*io_gpio = 0;
14574 		*io_port = 0;
14575 		break;
14576 	case PORT_HW_CFG_EXT_PHY_GPIO_RST_GPIO1_P0:
14577 		*io_gpio = 1;
14578 		*io_port = 0;
14579 		break;
14580 	case PORT_HW_CFG_EXT_PHY_GPIO_RST_GPIO2_P0:
14581 		*io_gpio = 2;
14582 		*io_port = 0;
14583 		break;
14584 	case PORT_HW_CFG_EXT_PHY_GPIO_RST_GPIO3_P0:
14585 		*io_gpio = 3;
14586 		*io_port = 0;
14587 		break;
14588 	case PORT_HW_CFG_EXT_PHY_GPIO_RST_GPIO0_P1:
14589 		*io_gpio = 0;
14590 		*io_port = 1;
14591 		break;
14592 	case PORT_HW_CFG_EXT_PHY_GPIO_RST_GPIO1_P1:
14593 		*io_gpio = 1;
14594 		*io_port = 1;
14595 		break;
14596 	case PORT_HW_CFG_EXT_PHY_GPIO_RST_GPIO2_P1:
14597 		*io_gpio = 2;
14598 		*io_port = 1;
14599 		break;
14600 	case PORT_HW_CFG_EXT_PHY_GPIO_RST_GPIO3_P1:
14601 		*io_gpio = 3;
14602 		*io_port = 1;
14603 		break;
14604 	default:
14605 		/* Don't override the io_gpio and io_port */
14606 		break;
14607 	}
14608 }
14609 
elink_8727_common_init_phy(struct elink_dev * cb,u32 shmem_base_path[],u32 shmem2_base_path[],u8 phy_index,u32 chip_id)14610 static elink_status_t elink_8727_common_init_phy(struct elink_dev *cb,
14611 				      u32 shmem_base_path[],
14612 				      u32 shmem2_base_path[], u8 phy_index,
14613 				      u32 chip_id)
14614 {
14615 	s8 port, reset_gpio;
14616 	u32 swap_val, swap_override;
14617 	struct elink_phy phy[PORT_MAX];
14618 	struct elink_phy *phy_blk[PORT_MAX];
14619 	s8 port_of_path;
14620 	swap_val = REG_RD(cb, NIG_REG_PORT_SWAP);
14621 	swap_override = REG_RD(cb, NIG_REG_STRAP_OVERRIDE);
14622 
14623 	reset_gpio = MISC_REGISTERS_GPIO_1;
14624 	port = 1;
14625 
14626 	/* Retrieve the reset gpio/port which control the reset.
14627 	 * Default is GPIO1, PORT1
14628 	 */
14629 	elink_get_ext_phy_reset_gpio(cb, shmem_base_path[0],
14630 				     (u8 *)&reset_gpio, (u8 *)&port);
14631 
14632 	/* Calculate the port based on port swap */
14633 	port ^= (swap_val && swap_override);
14634 
14635 	/* Initiate PHY reset*/
14636 	ELINK_SET_GPIO(cb, reset_gpio, MISC_REGISTERS_GPIO_OUTPUT_LOW,
14637 		       port);
14638 	MSLEEP(cb, 1);
14639 	ELINK_SET_GPIO(cb, reset_gpio, MISC_REGISTERS_GPIO_OUTPUT_HIGH,
14640 		       port);
14641 
14642 	MSLEEP(cb, 5);
14643 
14644 	/* PART1 - Reset both phys */
14645 	for (port = PORT_MAX - 1; port >= PORT_0; port--) {
14646 		u32 shmem_base, shmem2_base;
14647 
14648 		/* In E2, same phy is using for port0 of the two paths */
14649 		if (CHIP_IS_E1X(chip_id)) {
14650 			shmem_base = shmem_base_path[0];
14651 			shmem2_base = shmem2_base_path[0];
14652 			port_of_path = port;
14653 		} else {
14654 			shmem_base = shmem_base_path[port];
14655 			shmem2_base = shmem2_base_path[port];
14656 			port_of_path = 0;
14657 		}
14658 
14659 		/* Extract the ext phy address for the port */
14660 		if (elink_populate_phy(cb, phy_index, shmem_base, shmem2_base,
14661 				       port_of_path, &phy[port]) !=
14662 				       ELINK_STATUS_OK) {
14663 			ELINK_DEBUG_P0(cb, "populate phy failed\n");
14664 			return ELINK_STATUS_ERROR;
14665 		}
14666 		/* disable attentions */
14667 		elink_bits_dis(cb, NIG_REG_MASK_INTERRUPT_PORT0 +
14668 			       port_of_path*4,
14669 			       (ELINK_NIG_MASK_XGXS0_LINK_STATUS |
14670 				ELINK_NIG_MASK_XGXS0_LINK10G |
14671 				ELINK_NIG_MASK_SERDES0_LINK_STATUS |
14672 				ELINK_NIG_MASK_MI_INT));
14673 
14674 
14675 		/* Reset the phy */
14676 		elink_cl45_write(cb, &phy[port],
14677 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 1<<15);
14678 	}
14679 
14680 	/* Add delay of 150ms after reset */
14681 	MSLEEP(cb, 150);
14682 	if (phy[PORT_0].addr & 0x1) {
14683 		phy_blk[PORT_0] = &(phy[PORT_1]);
14684 		phy_blk[PORT_1] = &(phy[PORT_0]);
14685 	} else {
14686 		phy_blk[PORT_0] = &(phy[PORT_0]);
14687 		phy_blk[PORT_1] = &(phy[PORT_1]);
14688 	}
14689 	/* PART2 - Download firmware to both phys */
14690 	for (port = PORT_MAX - 1; port >= PORT_0; port--) {
14691 		if (CHIP_IS_E1X(chip_id))
14692 			port_of_path = port;
14693 		else
14694 			port_of_path = 0;
14695 		ELINK_DEBUG_P1(cb, "Loading spirom for phy address 0x%x\n",
14696 			   phy_blk[port]->addr);
14697 		if (elink_8073_8727_external_rom_boot(cb, phy_blk[port],
14698 						      port_of_path))
14699 			return ELINK_STATUS_ERROR;
14700 		/* Disable PHY transmitter output */
14701 		elink_cl45_write(cb, phy_blk[port],
14702 				 MDIO_PMA_DEVAD,
14703 				 MDIO_PMA_REG_TX_DISABLE, 1);
14704 
14705 	}
14706 	return ELINK_STATUS_OK;
14707 }
14708 #endif /* EXCLUDE_BCM8727_BCM8073 */
14709 
14710 #ifndef EXCLUDE_BCM84833
elink_84833_common_init_phy(struct elink_dev * cb,u32 shmem_base_path[],u32 shmem2_base_path[],u8 phy_index,u32 chip_id)14711 static elink_status_t elink_84833_common_init_phy(struct elink_dev *cb,
14712 						u32 shmem_base_path[],
14713 						u32 shmem2_base_path[],
14714 						u8 phy_index,
14715 						u32 chip_id)
14716 {
14717 	u8 reset_gpios;
14718 	reset_gpios = elink_84833_get_reset_gpios(cb, shmem_base_path, chip_id);
14719 #ifndef EDEBUG
14720 	ELINK_SET_MULT_GPIO(cb, reset_gpios, MISC_REGISTERS_GPIO_OUTPUT_LOW);
14721 	USLEEP(cb, 10);
14722 	ELINK_SET_MULT_GPIO(cb, reset_gpios, MISC_REGISTERS_GPIO_OUTPUT_HIGH);
14723 	ELINK_DEBUG_P1(cb, "84833 reset pulse on pin values 0x%x\n",
14724 		reset_gpios);
14725 #endif
14726 	return ELINK_STATUS_OK;
14727 }
14728 #ifndef EXCLUDE_FROM_BNX2X
elink_84833_pre_init_phy(struct elink_dev * cb,struct elink_phy * phy,u8 port)14729 static elink_status_t elink_84833_pre_init_phy(struct elink_dev *cb,
14730 				    struct elink_phy *phy,
14731 				    u8 port)
14732 {
14733 	u16 val, cnt;
14734 	/* Wait for FW completing its initialization. */
14735 	for (cnt = 0; cnt < 1500; cnt++) {
14736 		elink_cl45_read(cb, phy,
14737 				MDIO_PMA_DEVAD,
14738 				MDIO_PMA_REG_CTRL, &val);
14739 		if (!(val & (1<<15)))
14740 			break;
14741 		MSLEEP(cb, 1);
14742 	}
14743 	if (cnt >= 1500) {
14744 		ELINK_DEBUG_P0(cb, "84833 reset timeout\n");
14745 		return ELINK_STATUS_ERROR;
14746 	}
14747 
14748 	/* Put the port in super isolate mode. */
14749 	elink_cl45_read(cb, phy,
14750 			MDIO_CTL_DEVAD,
14751 			MDIO_84833_TOP_CFG_XGPHY_STRAP1, &val);
14752 	val |= MDIO_84833_SUPER_ISOLATE;
14753 	elink_cl45_write(cb, phy,
14754 			 MDIO_CTL_DEVAD,
14755 			 MDIO_84833_TOP_CFG_XGPHY_STRAP1, val);
14756 
14757 	/* Save spirom version */
14758 	elink_save_848xx_spirom_version(phy, cb, port);
14759 	return ELINK_STATUS_OK;
14760 }
14761 
elink_pre_init_phy(struct elink_dev * cb,u32 shmem_base,u32 shmem2_base,u32 chip_id,u8 port)14762 elink_status_t elink_pre_init_phy(struct elink_dev *cb,
14763 				  u32 shmem_base,
14764 				  u32 shmem2_base,
14765 				  u32 chip_id,
14766 				  u8 port)
14767 {
14768 	elink_status_t rc = ELINK_STATUS_OK;
14769 	struct elink_phy phy;
14770 	if (elink_populate_phy(cb, ELINK_EXT_PHY1, shmem_base, shmem2_base,
14771 			       port, &phy) != ELINK_STATUS_OK) {
14772 		ELINK_DEBUG_P0(cb, "populate_phy failed\n");
14773 		return ELINK_STATUS_ERROR;
14774 	}
14775 	elink_set_mdio_clk(cb, chip_id, phy.mdio_ctrl);
14776 	switch (phy.type) {
14777 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833:
14778 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84834:
14779 		rc = elink_84833_pre_init_phy(cb, &phy, port);
14780 		break;
14781 	default:
14782 		break;
14783 	}
14784 	return rc;
14785 }
14786 #endif /* EXCLUDE_FROM_BNX2X */
14787 #endif /* EXCLUDE_BCM84833 */
elink_ext_phy_common_init(struct elink_dev * cb,u32 shmem_base_path[],u32 shmem2_base_path[],u8 phy_index,u32 ext_phy_type,u32 chip_id)14788 static elink_status_t elink_ext_phy_common_init(struct elink_dev *cb, u32 shmem_base_path[],
14789 				     u32 shmem2_base_path[], u8 phy_index,
14790 				     u32 ext_phy_type, u32 chip_id)
14791 {
14792 	elink_status_t rc = ELINK_STATUS_OK;
14793 
14794 	switch (ext_phy_type) {
14795 #ifndef EXCLUDE_BCM8727_BCM8073
14796 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8073:
14797 		rc = elink_8073_common_init_phy(cb, shmem_base_path,
14798 						shmem2_base_path,
14799 						phy_index, chip_id);
14800 		break;
14801 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8722:
14802 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8727:
14803 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8727_NOC:
14804 		rc = elink_8727_common_init_phy(cb, shmem_base_path,
14805 						shmem2_base_path,
14806 						phy_index, chip_id);
14807 		break;
14808 
14809 #endif
14810 #ifndef EXCLUDE_BCM87x6
14811 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8726:
14812 		/* GPIO1 affects both ports, so there's need to pull
14813 		 * it for single port alone
14814 		 */
14815 		rc = elink_8726_common_init_phy(cb, shmem_base_path,
14816 						shmem2_base_path,
14817 						phy_index, chip_id);
14818 		break;
14819 #endif /* #ifndef EXCLUDE_BCM87x6 */
14820 #ifndef EXCLUDE_BCM84833
14821 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833:
14822 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84834:
14823 		/* GPIO3's are linked, and so both need to be toggled
14824 		 * to obtain required 2us pulse.
14825 		 */
14826 		rc = elink_84833_common_init_phy(cb, shmem_base_path,
14827 						shmem2_base_path,
14828 						phy_index, chip_id);
14829 		break;
14830 #endif
14831 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_FAILURE:
14832 		rc = ELINK_STATUS_ERROR;
14833 		break;
14834 	default:
14835 		ELINK_DEBUG_P1(cb,
14836 			   "ext_phy 0x%x common init not required\n",
14837 			   ext_phy_type);
14838 		break;
14839 	}
14840 
14841 	if (rc != ELINK_STATUS_OK)
14842 		elink_cb_event_log(cb, ELINK_LOG_ID_PHY_UNINITIALIZED, 0); // "Warning: PHY was not initialized,"
14843 				     // " Port %d\n",
14844 
14845 	return rc;
14846 }
14847 
14848 #ifdef INCLUDE_WARPCORE_UC_LOAD
elink_warpcore_common_init(struct elink_dev * cb,u32 shmem_base_path[],u32 shmem2_base_path[],u8 phy_index,u32 chip_id,u8 one_port_enabled)14849 static elink_status_t elink_warpcore_common_init(struct elink_dev *cb,
14850 						 u32 shmem_base_path[],
14851 						 u32 shmem2_base_path[],
14852 						 u8 phy_index,
14853 						 u32 chip_id,
14854 						 u8 one_port_enabled)
14855 {
14856 	struct elink_phy phy;
14857 	u32 wc_lane_config;
14858 	u16 val;
14859 	elink_status_t rc;
14860 
14861 	REG_WR(cb,  MISC_REG_LCPLL_E40_PWRDWN, 0);
14862 	/* Procedure to bring the LCPLL out of reset. */
14863 	MSLEEP(cb, 1);
14864 	REG_WR(cb,  MISC_REG_LCPLL_E40_RESETB_ANA, 1);
14865 	MSLEEP(cb, 1);
14866 	REG_WR(cb,  MISC_REG_LCPLL_E40_RESETB_DIG, 1);
14867 
14868 	ELINK_DEBUG_P0(cb, "Resetting Warpcore\n");
14869 
14870 	if (elink_reset_warpcore(cb) != ELINK_STATUS_OK)
14871 		return ELINK_STATUS_ERROR;
14872 
14873 	/* Extract the ext phy address for the port */
14874 	if (elink_populate_phy(cb, phy_index, shmem_base_path[0],
14875 			       shmem2_base_path[0],
14876 			       0, &phy) != ELINK_STATUS_OK) {
14877 		ELINK_DEBUG_P0(cb, "populate phy failed\n");
14878 		return ELINK_STATUS_ERROR;
14879 	}
14880 
14881 	/* Set WC to use CL45 */
14882 	REG_WR(cb, MISC_REG_WC0_CTRL_MD_ST, 0);
14883 	/* Set swap lanes and polarity */
14884 	wc_lane_config = REG_RD(cb, shmem_base_path[0] +
14885 				OFFSETOF(struct shmem_region, dev_info.
14886 					 shared_hw_config.wc_lane_config));
14887 
14888 	/* Power down warpcore lanes */
14889 	if (one_port_enabled)
14890 		elink_warpcore_powerdown_secondport_lanes(cb, &phy);
14891 
14892 	/* Disable sequencer */
14893 	elink_warpcore_sequencer(cb, &phy, 0);
14894 
14895  	elink_warpcore_set_lane_swap(cb, &phy, wc_lane_config);
14896 	elink_warpcore_set_lane_polarity(cb, &phy, wc_lane_config);
14897 
14898 	if (phy.flags & ELINK_FLAGS_WC_DUAL_MODE)
14899 		elink_warpcore_set_dual_mode(cb, &phy, shmem_base_path[0]);
14900 	else
14901 		elink_warpcore_set_quad_mode(cb, &phy);
14902 
14903 	/* Load Warpcore microcode */
14904 	rc = elink_warpcore_load_uc(cb, &phy);
14905 	if (rc != ELINK_STATUS_OK)
14906 		return rc;
14907 
14908 	/* RX traffic and TX traffic requires clock sync.
14909 	 * When transmiting we send data + clock to the Warpcore.
14910 	 * This clock is provided by lane 0 of the Warpcore.
14911 	 * So we need to configure this lane to supply us the correct clock
14912 	 * which will be use for transmit on all lanes
14913 	 */
14914 
14915 	CL22_WR_OVER_CL45(cb, &phy, MDIO_REG_BANK_AER_BLOCK,
14916 			  MDIO_AER_BLOCK_AER_REG, 0);
14917 	elink_cl45_read(cb, &phy, MDIO_WC_DEVAD,
14918 			MDIO_WC_REG_XGXS_X2_CONTROL2, &val);
14919 	val &= 0xDE1F;
14920 	if (phy.flags & ELINK_FLAGS_WC_DUAL_MODE) {
14921 		val |= (1<<11);
14922 		val |= (9<<5);
14923 		/* To force tx_wclk33 to txckp[0] */
14924 		if (phy.supported & ELINK_SUPPORTED_20000baseKR2_Full)
14925 			val |= (1<<13);
14926 
14927 		/* Dual mode - lanes 0,1 use same clocks/resets - from lane 0
14928 		 * Lanes 2,3 use same clocks/resets - from lane 2
14929 		 */
14930 		elink_cl45_write(cb, &phy, MDIO_WC_DEVAD,
14931 				 MDIO_WC_REG_XGXS_X2_CONTROL3, 0x7);
14932 	} else
14933 		val |= 0x2800;
14934 
14935 	elink_cl45_write(cb, &phy, MDIO_WC_DEVAD,
14936 			 MDIO_WC_REG_XGXS_X2_CONTROL2, val);
14937 
14938 	/* Enable sequencer */
14939 	elink_warpcore_sequencer(cb, &phy, 1);
14940 
14941 	return ELINK_STATUS_OK;
14942 }
14943 
14944 #endif /* INCLUDE_WARPCORE_UC_LOAD */
14945 #endif /* ELINK_EMUL_ONLY */
elink_common_init_phy(struct elink_dev * cb,u32 shmem_base_path[],u32 shmem2_base_path[],u32 chip_id,u8 one_port_enabled)14946 elink_status_t elink_common_init_phy(struct elink_dev *cb, u32 shmem_base_path[],
14947 			  u32 shmem2_base_path[], u32 chip_id,
14948 			  u8 one_port_enabled)
14949 {
14950 	elink_status_t rc = ELINK_STATUS_OK;
14951 	u32 phy_ver, val;
14952 #ifndef ELINK_EMUL_ONLY
14953 	u8 phy_index = 0;
14954 	u32 ext_phy_type, ext_phy_config;
14955 #endif
14956 #if defined(ELINK_INCLUDE_EMUL) || defined(ELINK_INCLUDE_FPGA)
14957 	if (CHIP_REV_IS_EMUL(chip_id) || CHIP_REV_IS_FPGA(chip_id))
14958 		return ELINK_STATUS_OK;
14959 #endif
14960 
14961 	elink_set_mdio_clk(cb, chip_id, GRCBASE_EMAC0);
14962 	elink_set_mdio_clk(cb, chip_id, GRCBASE_EMAC1);
14963 	ELINK_DEBUG_P0(cb, "Begin common phy init\n");
14964 	if (CHIP_IS_E3(chip_id)) {
14965 		/* Enable EPIO */
14966 		val = REG_RD(cb, MISC_REG_GEN_PURP_HWG);
14967 		REG_WR(cb, MISC_REG_GEN_PURP_HWG, val | 1);
14968 	}
14969 #ifndef ELINK_EMUL_ONLY
14970 	/* Check if common init was already done */
14971 	phy_ver = REG_RD(cb, shmem_base_path[0] +
14972 			 OFFSETOF(struct shmem_region,
14973 				  port_mb[PORT_0].ext_phy_fw_version));
14974 	if (phy_ver) {
14975 		ELINK_DEBUG_P1(cb, "Not doing common init; phy ver is 0x%x\n",
14976 			       phy_ver);
14977 		return ELINK_STATUS_OK;
14978 	}
14979 
14980 #ifdef INCLUDE_WARPCORE_UC_LOAD
14981 	if (ELINK_USES_WARPCORE(chip_id)) {
14982 		rc |= elink_warpcore_common_init(cb, shmem_base_path,
14983 						 shmem2_base_path, phy_index,
14984 						 chip_id, one_port_enabled);
14985 	}
14986 #endif
14987 	/* Read the ext_phy_type for arbitrary port(0) */
14988 	for (phy_index = ELINK_EXT_PHY1; phy_index < ELINK_MAX_PHYS;
14989 	      phy_index++) {
14990 		ext_phy_config = elink_get_ext_phy_config(cb,
14991 							  shmem_base_path[0],
14992 							  phy_index, 0);
14993 		ext_phy_type = ELINK_XGXS_EXT_PHY_TYPE(ext_phy_config);
14994 		rc |= elink_ext_phy_common_init(cb, shmem_base_path,
14995 						shmem2_base_path,
14996 						phy_index, ext_phy_type,
14997 						chip_id);
14998 	}
14999 #endif /* ELINK_EMUL_ONLY */
15000 	return rc;
15001 }
15002 #endif // #ifndef EXCLUDE_COMMON_INIT
15003 
15004 #ifndef EXCLUDE_NON_COMMON_INIT
15005 #ifndef EXCLUDE_WARPCORE
elink_check_over_curr(struct elink_params * params,struct elink_vars * vars)15006 static void elink_check_over_curr(struct elink_params *params,
15007 				  struct elink_vars *vars)
15008 {
15009 	struct elink_dev *cb = params->cb;
15010 	u32 cfg_pin;
15011 	u8 port = params->port;
15012 	u32 pin_val;
15013 
15014 	cfg_pin = (REG_RD(cb, params->shmem_base +
15015 			  OFFSETOF(struct shmem_region,
15016 			       dev_info.port_hw_config[port].e3_cmn_pin_cfg1)) &
15017 		   PORT_HW_CFG_E3_OVER_CURRENT_MASK) >>
15018 		PORT_HW_CFG_E3_OVER_CURRENT_SHIFT;
15019 
15020 	/* Ignore check if no external input PIN available */
15021 	if (elink_get_cfg_pin(cb, cfg_pin, &pin_val) != ELINK_STATUS_OK)
15022 		return;
15023 
15024 	if (!pin_val) {
15025 		if ((vars->phy_flags & PHY_OVER_CURRENT_FLAG) == 0) {
15026 #ifndef ELINK_AUX_POWER
15027 			elink_cb_event_log(cb, ELINK_LOG_ID_OVER_CURRENT, params->port); //"Error:  Power fault on Port %d has"
15028 					  //  " been detected and the power to "
15029 					  //  "that SFP+ module has been removed"
15030 					  //  " to prevent failure of the card."
15031 					  //  " Please remove the SFP+ module and"
15032 					  //  " restart the system to clear this"
15033 					  //  " error.\n",
15034 #endif /* ELINK_AUX_POWER */
15035 			vars->phy_flags |= PHY_OVER_CURRENT_FLAG;
15036 			elink_warpcore_power_module(params, 0);
15037 		}
15038 	} else
15039 		vars->phy_flags &= ~PHY_OVER_CURRENT_FLAG;
15040 }
15041 #endif // EXCLUDE_WARPCORE
15042 
15043 /* Returns 0 if no change occured since last check; 1 otherwise. */
elink_analyze_link_error(struct elink_params * params,struct elink_vars * vars,u32 status,u32 phy_flag,u32 link_flag,u8 notify)15044 static u8 elink_analyze_link_error(struct elink_params *params,
15045 				    struct elink_vars *vars, u32 status,
15046 				    u32 phy_flag, u32 link_flag, u8 notify)
15047 {
15048 	struct elink_dev *cb = params->cb;
15049 	/* Compare new value with previous value */
15050 	u8 led_mode;
15051 	u32 old_status = (vars->phy_flags & phy_flag) ? 1 : 0;
15052 
15053 	if ((status ^ old_status) == 0)
15054 		return 0;
15055 
15056 	/* If values differ */
15057 	switch (phy_flag) {
15058 	case PHY_HALF_OPEN_CONN_FLAG:
15059 		ELINK_DEBUG_P0(cb, "Analyze Remote Fault\n");
15060 		break;
15061 	case PHY_SFP_TX_FAULT_FLAG:
15062 		ELINK_DEBUG_P0(cb, "Analyze TX Fault\n");
15063 		break;
15064 	default:
15065 		ELINK_DEBUG_P0(cb, "Analyze UNKNOWN\n");
15066 	}
15067 	ELINK_DEBUG_P3(cb, "Link changed:[%x %x]->%x\n", vars->link_up,
15068 	   old_status, status);
15069 
15070 	/* Do not touch the link in case physical link down */
15071 	if ((vars->phy_flags & PHY_PHYSICAL_LINK_FLAG) == 0)
15072 		return 1;
15073 
15074 	/* a. Update shmem->link_status accordingly
15075 	 * b. Update elink_vars->link_up
15076 	 */
15077 	if (status) {
15078 		vars->link_status &= ~LINK_STATUS_LINK_UP;
15079 		vars->link_status |= link_flag;
15080 		vars->link_up = 0;
15081 		vars->phy_flags |= phy_flag;
15082 
15083 		/* activate nig drain */
15084 		REG_WR(cb, NIG_REG_EGRESS_DRAIN0_MODE + params->port*4, 1);
15085 		/* Set LED mode to off since the PHY doesn't know about these
15086 		 * errors
15087 		 */
15088 		led_mode = ELINK_LED_MODE_OFF;
15089 	} else {
15090 		vars->link_status |= LINK_STATUS_LINK_UP;
15091 		vars->link_status &= ~link_flag;
15092 		vars->link_up = 1;
15093 		vars->phy_flags &= ~phy_flag;
15094 		led_mode = ELINK_LED_MODE_OPER;
15095 
15096 		/* Clear nig drain */
15097 		REG_WR(cb, NIG_REG_EGRESS_DRAIN0_MODE + params->port*4, 0);
15098 	}
15099 #ifndef ELINK_AUX_POWER
15100 #ifdef ELINK_57711E_SUPPORT
15101 	elink_sync_link(params, vars);
15102 #endif // ELINK_57711E_SUPPORT
15103 #endif // ELINK_AUX_POWER
15104 	/* Update the LED according to the link state */
15105 	elink_set_led(params, vars, led_mode, ELINK_SPEED_10000);
15106 
15107 	/* Update link status in the shared memory */
15108 	elink_update_mng(params, vars->link_status);
15109 
15110 	/* C. Trigger General Attention */
15111 	vars->periodic_flags |= ELINK_PERIODIC_FLAGS_LINK_EVENT;
15112 #ifndef EDEBUG
15113 	if (notify)
15114 		elink_cb_notify_link_changed(cb);
15115 #endif // EDEBUG
15116 
15117 	return 1;
15118 }
15119 
15120 /******************************************************************************
15121 * Description:
15122 *	This function checks for half opened connection change indication.
15123 *	When such change occurs, it calls the elink_analyze_link_error
15124 *	to check if Remote Fault is set or cleared. Reception of remote fault
15125 *	status message in the MAC indicates that the peer's MAC has detected
15126 *	a fault, for example, due to break in the TX side of fiber.
15127 *
15128 ******************************************************************************/
15129 #ifdef BNX2X_ADD /* BNX2X_ADD */
15130 static
15131 #endif
elink_check_half_open_conn(struct elink_params * params,struct elink_vars * vars,u8 notify)15132 elink_status_t elink_check_half_open_conn(struct elink_params *params,
15133 				struct elink_vars *vars,
15134 				u8 notify)
15135 {
15136 	struct elink_dev *cb = params->cb;
15137 	u32 lss_status = 0;
15138 	u32 mac_base;
15139 	/* In case link status is physically up @ 10G do */
15140 	if (((vars->phy_flags & PHY_PHYSICAL_LINK_FLAG) == 0) ||
15141 	    (REG_RD(cb, NIG_REG_EGRESS_EMAC0_PORT + params->port*4)))
15142 		return ELINK_STATUS_OK;
15143 
15144 	if (CHIP_IS_E3(params->chip_id) &&
15145 	    (REG_RD(cb, MISC_REG_RESET_REG_2) &
15146 	      (MISC_REGISTERS_RESET_REG_2_XMAC))) {
15147 		/* Check E3 XMAC */
15148 		/* Note that link speed cannot be queried here, since it may be
15149 		 * zero while link is down. In case UMAC is active, LSS will
15150 		 * simply not be set
15151 		 */
15152 		mac_base = (params->port) ? GRCBASE_XMAC1 : GRCBASE_XMAC0;
15153 
15154 		/* Clear stick bits (Requires rising edge) */
15155 		REG_WR(cb, mac_base + XMAC_REG_CLEAR_RX_LSS_STATUS, 0);
15156 		REG_WR(cb, mac_base + XMAC_REG_CLEAR_RX_LSS_STATUS,
15157 		       XMAC_CLEAR_RX_LSS_STATUS_REG_CLEAR_LOCAL_FAULT_STATUS |
15158 		       XMAC_CLEAR_RX_LSS_STATUS_REG_CLEAR_REMOTE_FAULT_STATUS);
15159 		if (REG_RD(cb, mac_base + XMAC_REG_RX_LSS_STATUS))
15160 			lss_status = 1;
15161 
15162 		elink_analyze_link_error(params, vars, lss_status,
15163 					 PHY_HALF_OPEN_CONN_FLAG,
15164 					 LINK_STATUS_NONE, notify);
15165 	} else if (REG_RD(cb, MISC_REG_RESET_REG_2) &
15166 		   (MISC_REGISTERS_RESET_REG_2_RST_BMAC0 << params->port)) {
15167 		/* Check E1X / E2 BMAC */
15168 		u32 lss_status_reg;
15169 		u32 wb_data[2];
15170 		mac_base = params->port ? NIG_REG_INGRESS_BMAC1_MEM :
15171 			NIG_REG_INGRESS_BMAC0_MEM;
15172 		/*  Read BIGMAC_REGISTER_RX_LSS_STATUS */
15173 		if (CHIP_IS_E2(params->chip_id))
15174 			lss_status_reg = BIGMAC2_REGISTER_RX_LSS_STAT;
15175 		else
15176 			lss_status_reg = BIGMAC_REGISTER_RX_LSS_STATUS;
15177 
15178 		REG_RD_DMAE(cb, mac_base + lss_status_reg, wb_data, 2);
15179 		lss_status = (wb_data[0] > 0);
15180 
15181 		elink_analyze_link_error(params, vars, lss_status,
15182 					 PHY_HALF_OPEN_CONN_FLAG,
15183 					 LINK_STATUS_NONE, notify);
15184 	}
15185 	return ELINK_STATUS_OK;
15186 }
15187 #ifdef ELINK_ENHANCEMENTS
elink_sfp_tx_fault_detection(struct elink_phy * phy,struct elink_params * params,struct elink_vars * vars)15188 static void elink_sfp_tx_fault_detection(struct elink_phy *phy,
15189 					 struct elink_params *params,
15190 					 struct elink_vars *vars)
15191 {
15192 	struct elink_dev *cb = params->cb;
15193 	u32 cfg_pin, value = 0;
15194 	u8 led_change, port = params->port;
15195 
15196 	/* Get The SFP+ TX_Fault controlling pin ([eg]pio) */
15197 	cfg_pin = (REG_RD(cb, params->shmem_base + OFFSETOF(struct shmem_region,
15198 			  dev_info.port_hw_config[port].e3_cmn_pin_cfg)) &
15199 		   PORT_HW_CFG_E3_TX_FAULT_MASK) >>
15200 		  PORT_HW_CFG_E3_TX_FAULT_SHIFT;
15201 
15202 	if (elink_get_cfg_pin(cb, cfg_pin, &value)) {
15203 		ELINK_DEBUG_P1(cb, "Failed to read pin 0x%02x\n", cfg_pin);
15204 		return;
15205 	}
15206 
15207 	led_change = elink_analyze_link_error(params, vars, value,
15208 					      PHY_SFP_TX_FAULT_FLAG,
15209 					      LINK_STATUS_SFP_TX_FAULT, 1);
15210 
15211 	if (led_change) {
15212 		/* Change TX_Fault led, set link status for further syncs */
15213 		u8 led_mode;
15214 
15215 		if (vars->phy_flags & PHY_SFP_TX_FAULT_FLAG) {
15216 			led_mode = MISC_REGISTERS_GPIO_HIGH;
15217 			vars->link_status |= LINK_STATUS_SFP_TX_FAULT;
15218 		} else {
15219 			led_mode = MISC_REGISTERS_GPIO_LOW;
15220 			vars->link_status &= ~LINK_STATUS_SFP_TX_FAULT;
15221 		}
15222 
15223 		/* If module is unapproved, led should be on regardless */
15224 		if (!(phy->flags & ELINK_FLAGS_SFP_NOT_APPROVED)) {
15225 			ELINK_DEBUG_P1(cb, "Change TX_Fault LED: ->%x\n",
15226 			   led_mode);
15227 			elink_set_e3_module_fault_led(params, led_mode);
15228 		}
15229 	}
15230 }
15231 #endif
15232 #ifndef EXCLUDE_WARPCORE
elink_kr2_recovery(struct elink_params * params,struct elink_vars * vars,struct elink_phy * phy)15233 static void elink_kr2_recovery(struct elink_params *params,
15234 			       struct elink_vars *vars,
15235 			       struct elink_phy *phy)
15236 {
15237 #ifdef ELINK_DEBUG
15238 	struct elink_dev *cb = params->cb;
15239 	ELINK_DEBUG_P0(cb, "KR2 recovery\n");
15240 #endif // ELINK_DEBUG
15241 	elink_warpcore_enable_AN_KR2(phy, params, vars);
15242 	elink_warpcore_restart_AN_KR(phy, params);
15243 }
15244 
elink_check_kr2_wa(struct elink_params * params,struct elink_vars * vars,struct elink_phy * phy)15245 static void elink_check_kr2_wa(struct elink_params *params,
15246 			       struct elink_vars *vars,
15247 			       struct elink_phy *phy)
15248 {
15249 	struct elink_dev *cb = params->cb;
15250 	u16 base_page, next_page, not_kr2_device, lane;
15251 	int sigdet;
15252 
15253 	/* Once KR2 was disabled, wait 5 seconds before checking KR2 recovery
15254 	 * Since some switches tend to reinit the AN process and clear the
15255 	 * the advertised BP/NP after ~2 seconds causing the KR2 to be disabled
15256 	 * and recovered many times
15257 	 */
15258 	if (vars->check_kr2_recovery_cnt > 0) {
15259 		vars->check_kr2_recovery_cnt--;
15260 		return;
15261 	}
15262 
15263 	sigdet = elink_warpcore_get_sigdet(phy, params);
15264 	if (!sigdet) {
15265 		if (!(params->link_attr_sync & LINK_ATTR_SYNC_KR2_ENABLE)) {
15266 			elink_kr2_recovery(params, vars, phy);
15267 			ELINK_DEBUG_P0(cb, "No sigdet\n");
15268 		}
15269 		return;
15270 	}
15271 
15272 	lane = elink_get_warpcore_lane(phy, params);
15273 	CL22_WR_OVER_CL45(cb, phy, MDIO_REG_BANK_AER_BLOCK,
15274 			  MDIO_AER_BLOCK_AER_REG, lane);
15275 	elink_cl45_read(cb, phy, MDIO_AN_DEVAD,
15276 			MDIO_AN_REG_LP_AUTO_NEG, &base_page);
15277 	elink_cl45_read(cb, phy, MDIO_AN_DEVAD,
15278 			MDIO_AN_REG_LP_AUTO_NEG2, &next_page);
15279 	elink_set_aer_mmd(params, phy);
15280 
15281 	/* CL73 has not begun yet */
15282 	if (base_page == 0) {
15283 		if (!(params->link_attr_sync & LINK_ATTR_SYNC_KR2_ENABLE)) {
15284 			elink_kr2_recovery(params, vars, phy);
15285 			ELINK_DEBUG_P0(cb, "No BP\n");
15286 		}
15287 		return;
15288 	}
15289 
15290 	/* In case NP bit is not set in the BasePage, or it is set,
15291 	 * but only KX is advertised, declare this link partner as non-KR2
15292 	 * device.
15293 	 */
15294 	not_kr2_device = (((base_page & 0x8000) == 0) ||
15295 			  (((base_page & 0x8000) &&
15296 			    ((next_page & 0xe0) == 0x20))));
15297 
15298 	/* In case KR2 is already disabled, check if we need to re-enable it */
15299 	if (!(params->link_attr_sync & LINK_ATTR_SYNC_KR2_ENABLE)) {
15300 		if (!not_kr2_device) {
15301 			ELINK_DEBUG_P2(cb, "BP=0x%x, NP=0x%x\n", base_page,
15302 			   next_page);
15303 			elink_kr2_recovery(params, vars, phy);
15304 		}
15305 		return;
15306 	}
15307 	/* KR2 is enabled, but not KR2 device */
15308 	if (not_kr2_device) {
15309 		/* Disable KR2 on both lanes */
15310 		ELINK_DEBUG_P2(cb, "BP=0x%x, NP=0x%x\n", base_page, next_page);
15311 		elink_disable_kr2(params, vars, phy);
15312 		/* Restart AN on leading lane */
15313 		elink_warpcore_restart_AN_KR(phy, params);
15314 		return;
15315 	}
15316 }
15317 #endif
15318 
elink_period_func(struct elink_params * params,struct elink_vars * vars)15319 void elink_period_func(struct elink_params *params, struct elink_vars *vars)
15320 {
15321 	u16 phy_idx;
15322 #if defined(ELINK_DEBUG) || defined(ELINK_ENHANCEMENTS)
15323 	struct elink_dev *cb = params->cb;
15324 #endif
15325 	for (phy_idx = ELINK_INT_PHY; phy_idx < ELINK_MAX_PHYS; phy_idx++) {
15326 		if (params->phy[phy_idx].flags & ELINK_FLAGS_TX_ERROR_CHECK) {
15327 			elink_set_aer_mmd(params, &params->phy[phy_idx]);
15328 			if (elink_check_half_open_conn(params, vars, 1) !=
15329 			    ELINK_STATUS_OK)
15330 				ELINK_DEBUG_P0(cb, "Fault detection failed\n");
15331 			break;
15332 		}
15333 	}
15334 
15335 #ifndef EXCLUDE_WARPCORE
15336 	if (CHIP_IS_E3(params->chip_id)) {
15337 		struct elink_phy *phy = &params->phy[ELINK_INT_PHY];
15338 		elink_set_aer_mmd(params, phy);
15339 		if ((phy->supported & ELINK_SUPPORTED_20000baseKR2_Full) &&
15340 		    (phy->speed_cap_mask & PORT_HW_CFG_SPEED_CAPABILITY_D0_20G))
15341 			elink_check_kr2_wa(params, vars, phy);
15342 #ifdef ELINK_AUX_POWER
15343 		if ((phy->flags & ELINK_FLAGS_SFP_MODULE_PLUGGED_IN_WC) == 0) {
15344 			if (elink_is_sfp_module_plugged(phy, params)) {
15345 				phy->flags |=
15346 					ELINK_FLAGS_SFP_MODULE_PLUGGED_IN_WC;
15347 				elink_sfp_module_detection(phy, params);
15348 			}
15349 		} else {
15350 			if (!elink_is_sfp_module_plugged(phy, params)) {
15351 				elink_sfp_set_transmitter(params, phy, 1);
15352 				phy->flags &=
15353 					~ELINK_FLAGS_SFP_MODULE_PLUGGED_IN_WC;
15354 			}
15355 		}
15356 #endif // ELINK_AUX_POWER
15357 		elink_check_over_curr(params, vars);
15358 #ifdef ELINK_ENHANCEMENTS
15359 		if (vars->rx_tx_asic_rst)
15360 			elink_warpcore_config_runtime(phy, params, vars);
15361 
15362 		if ((REG_RD(cb, params->shmem_base +
15363 			    OFFSETOF(struct shmem_region, dev_info.
15364 				port_hw_config[params->port].default_cfg))
15365 		    & PORT_HW_CFG_NET_SERDES_IF_MASK) ==
15366 		    PORT_HW_CFG_NET_SERDES_IF_SFI) {
15367 			if (elink_is_sfp_module_plugged(phy, params)) {
15368 				elink_sfp_tx_fault_detection(phy, params, vars);
15369 			} else if (vars->link_status &
15370 				LINK_STATUS_SFP_TX_FAULT) {
15371 				/* Clean trail, interrupt corrects the leds */
15372 				vars->link_status &= ~LINK_STATUS_SFP_TX_FAULT;
15373 				vars->phy_flags &= ~PHY_SFP_TX_FAULT_FLAG;
15374 				/* Update link status in the shared memory */
15375 				elink_update_mng(params, vars->link_status);
15376 			}
15377 		}
15378 #endif // ELINK_ENHANCEMENTS
15379 	}
15380 #endif /* EXCLUDE_WARPCORE */
15381 }
15382 
15383 #ifdef ELINK_ENHANCEMENTS
elink_fan_failure_det_req(struct elink_dev * cb,u32 shmem_base,u32 shmem2_base,u8 port)15384 u8 elink_fan_failure_det_req(struct elink_dev *cb,
15385 			     u32 shmem_base,
15386 			     u32 shmem2_base,
15387 			     u8 port)
15388 {
15389 	u8 phy_index, fan_failure_det_req = 0;
15390 	struct elink_phy phy;
15391 	for (phy_index = ELINK_EXT_PHY1; phy_index < ELINK_MAX_PHYS;
15392 	      phy_index++) {
15393 		if (elink_populate_phy(cb, phy_index, shmem_base, shmem2_base,
15394 				       port, &phy)
15395 		    != ELINK_STATUS_OK) {
15396 			ELINK_DEBUG_P0(cb, "populate phy failed\n");
15397 			return 0;
15398 		}
15399 		fan_failure_det_req |= (phy.flags &
15400 					ELINK_FLAGS_FAN_FAILURE_DET_REQ);
15401 	}
15402 	return fan_failure_det_req;
15403 }
15404 #endif // ELINK_ENHANCEMENTS
15405 #ifdef ELINK_AUX_POWER
elink_enable_pmd_tx(struct elink_params * params)15406 void elink_enable_pmd_tx(struct elink_params *params)
15407 {
15408 	u8 phy_index;
15409 	elink_set_mdio_emac_per_phy(params->cb, params);
15410 
15411 	for (phy_index = ELINK_EXT_PHY1; phy_index < ELINK_MAX_PHYS;
15412 	      phy_index++) {
15413 		switch (params->phy[phy_index].type) {
15414 		case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8727:
15415 		case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8727_NOC:
15416 		case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8722:
15417 			elink_cl45_write(params->cb, &params->phy[phy_index],
15418 					 MDIO_PMA_DEVAD,
15419 					 MDIO_PMA_REG_TX_DISABLE, 0);
15420 		default:
15421 			break;
15422 		}
15423 	}
15424 }
15425 #endif // ELINK_AUX_POWER
15426 
elink_hw_reset_phy(struct elink_params * params)15427 void elink_hw_reset_phy(struct elink_params *params)
15428 {
15429 	u8 phy_index;
15430 	struct elink_dev *cb = params->cb;
15431 	elink_update_mng(params, 0);
15432 	elink_bits_dis(cb, NIG_REG_MASK_INTERRUPT_PORT0 + params->port*4,
15433 		       (ELINK_NIG_MASK_XGXS0_LINK_STATUS |
15434 			ELINK_NIG_MASK_XGXS0_LINK10G |
15435 			ELINK_NIG_MASK_SERDES0_LINK_STATUS |
15436 			ELINK_NIG_MASK_MI_INT));
15437 
15438 	for (phy_index = ELINK_INT_PHY; phy_index < ELINK_MAX_PHYS;
15439 	      phy_index++) {
15440 		if (params->phy[phy_index].hw_reset) {
15441 			params->phy[phy_index].hw_reset(
15442 				&params->phy[phy_index],
15443 				params);
15444 			params->phy[phy_index] = phy_null;
15445 		}
15446 	}
15447 }
15448 
15449 #ifdef ELINK_ENHANCEMENTS
elink_init_mod_abs_int(struct elink_dev * cb,struct elink_vars * vars,u32 chip_id,u32 shmem_base,u32 shmem2_base,u8 port)15450 void elink_init_mod_abs_int(struct elink_dev *cb, struct elink_vars *vars,
15451 			    u32 chip_id, u32 shmem_base, u32 shmem2_base,
15452 			    u8 port)
15453 {
15454 	u8 gpio_num = 0xff, gpio_port = 0xff, phy_index;
15455 	u32 val;
15456 	u32 offset, aeu_mask, swap_val, swap_override, sync_offset;
15457 	if (CHIP_IS_E3(chip_id)) {
15458 		if (elink_get_mod_abs_int_cfg(cb, chip_id,
15459 					      shmem_base,
15460 					      port,
15461 					      &gpio_num,
15462 					      &gpio_port) != ELINK_STATUS_OK)
15463 			return;
15464 	} else {
15465 		struct elink_phy phy;
15466 		for (phy_index = ELINK_EXT_PHY1; phy_index < ELINK_MAX_PHYS;
15467 		      phy_index++) {
15468 			if (elink_populate_phy(cb, phy_index, shmem_base,
15469 					       shmem2_base, port, &phy)
15470 			    != ELINK_STATUS_OK) {
15471 				ELINK_DEBUG_P0(cb, "populate phy failed\n");
15472 				return;
15473 			}
15474 			if (phy.type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8726) {
15475 				gpio_num = MISC_REGISTERS_GPIO_3;
15476 				gpio_port = port;
15477 				break;
15478 			}
15479 		}
15480 	}
15481 
15482 	if (gpio_num == 0xff)
15483 		return;
15484 
15485 	/* Set GPIO3 to trigger SFP+ module insertion/removal */
15486 	ELINK_SET_GPIO(cb, gpio_num, MISC_REGISTERS_GPIO_INPUT_HI_Z, gpio_port);
15487 
15488 	swap_val = REG_RD(cb, NIG_REG_PORT_SWAP);
15489 	swap_override = REG_RD(cb, NIG_REG_STRAP_OVERRIDE);
15490 	gpio_port ^= (swap_val && swap_override);
15491 
15492 	vars->aeu_int_mask = AEU_INPUTS_ATTN_BITS_GPIO0_FUNCTION_0 <<
15493 		(gpio_num + (gpio_port << 2));
15494 
15495 	sync_offset = shmem_base +
15496 		OFFSETOF(struct shmem_region,
15497 			 dev_info.port_hw_config[port].aeu_int_mask);
15498 	REG_WR(cb, sync_offset, vars->aeu_int_mask);
15499 
15500 	ELINK_DEBUG_P3(cb, "Setting MOD_ABS (GPIO%d_P%d) AEU to 0x%x\n",
15501 		       gpio_num, gpio_port, vars->aeu_int_mask);
15502 
15503 	if (port == 0)
15504 		offset = MISC_REG_AEU_ENABLE1_FUNC_0_OUT_0;
15505 	else
15506 		offset = MISC_REG_AEU_ENABLE1_FUNC_1_OUT_0;
15507 
15508 	/* Open appropriate AEU for interrupts */
15509 	aeu_mask = REG_RD(cb, offset);
15510 	aeu_mask |= vars->aeu_int_mask;
15511 	REG_WR(cb, offset, aeu_mask);
15512 
15513 	/* Enable the GPIO to trigger interrupt */
15514 	val = REG_RD(cb, MISC_REG_GPIO_EVENT_EN);
15515 	val |= 1 << (gpio_num + (gpio_port << 2));
15516 	REG_WR(cb, MISC_REG_GPIO_EVENT_EN, val);
15517 }
15518 #endif // ELINK_ENHANCEMENTS
15519 #endif // EXCLUDE_NON_COMMON_INIT
15520 
15521 #ifdef ELINK_AUX_POWER
elink_adjust_phy_func_ptr(struct elink_params * params)15522 void elink_adjust_phy_func_ptr(struct elink_params *params)
15523 {
15524 	u32 phy_idx;
15525 	struct elink_phy phy, *cur_phy;
15526 	for (phy_idx = ELINK_INT_PHY; phy_idx < ELINK_MAX_PHYS; phy_idx++) {
15527 		cur_phy = &params->phy[phy_idx];
15528 		/* Select the phy type */
15529 		switch (cur_phy->type) {
15530 		case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT:
15531 #ifndef EXCLUDE_WARPCORE
15532 			phy = phy_warpcore;
15533 #else
15534 			phy = phy_xgxs;
15535 #endif
15536 			break;
15537 #ifndef EXCLUDE_BCM8727_BCM8073
15538 		case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8073:
15539 			phy = phy_8073;
15540 			break;
15541 #endif
15542 #ifndef EXCLUDE_BCM8705
15543 		case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8705:
15544 			phy = phy_8705;
15545 			break;
15546 #endif
15547 #ifndef EXCLUDE_BCM87x6
15548 		case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8706:
15549 			phy = phy_8706;
15550 			break;
15551 		case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8726:
15552 			phy = phy_8726;
15553 			break;
15554 #endif /* EXCLUDE_BCM87x6 */
15555 #ifndef EXCLUDE_BCM8727_BCM8073
15556 		case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8727:
15557 			phy = phy_8727;
15558 			break;
15559 #endif
15560 #ifndef EXCLUDE_BCM8481
15561 		case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8481:
15562 			phy = phy_8481;
15563 			break;
15564 		case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84823:
15565 			phy = phy_84823;
15566 			break;
15567 #endif
15568 #ifndef EXCLUDE_BCM84833
15569 		case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833:
15570 			phy = phy_84833;
15571 			break;
15572 #endif
15573 #ifndef EXCLUDE_BCM54618SE
15574 		case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM54618SE:
15575 			phy = phy_54618se;
15576 			break;
15577 #endif
15578 #ifndef EXCLUDE_SFX7101
15579 		case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_SFX7101:
15580 			phy = phy_7101;
15581 			break;
15582 #endif
15583 		case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_FAILURE:
15584 			phy = phy_null;
15585 			return;
15586 		default:
15587 			phy = phy_null;
15588 			continue;
15589 		}
15590 		cur_phy->config_init = phy.config_init;
15591 		cur_phy->read_status = phy.read_status;
15592 		cur_phy->link_reset = phy.link_reset;
15593 		cur_phy->config_loopback = phy.config_loopback;
15594 		cur_phy->format_fw_ver = phy.format_fw_ver;
15595 		cur_phy->hw_reset = phy.hw_reset;
15596 		cur_phy->set_link_led = phy.set_link_led;
15597 		cur_phy->phy_specific_func = phy.phy_specific_func;
15598 	}
15599 }
15600 
15601 #ifndef EXCLUDE_COMMON_INIT
elink_get_phy_temperature(struct elink_params * params,u32 * temp_reading,u8 path,u8 port)15602 elink_status_t elink_get_phy_temperature(struct elink_params *params,
15603 			      u32 *temp_reading, u8 path, u8 port)
15604 {
15605 	/* The temperature returned from this function is expected
15606 	 * to be degree C. Any conversion from hardware value to
15607 	 * degree C will be performed here.
15608 	 */
15609 
15610 	struct elink_phy *phy;
15611 	u16 cmd_args[PHY84833_CMDHDLR_MAX_ARGS];
15612 	elink_status_t rc;
15613 	u8 idx;
15614 
15615 	for (idx = 0; idx < PHY84833_CMDHDLR_MAX_ARGS; idx++)
15616 		cmd_args[idx] = 0;
15617 	for (idx = 0; idx < params->num_phys; idx++) {
15618 		phy = &params->phy[idx];
15619 		if (phy->flags & ELINK_FLAGS_TEMPERATURE) {
15620 			rc = elink_84833_cmd_hdlr(phy, params,
15621 						PHY84833_CMD_GET_CURRENT_TEMP,
15622 						cmd_args,
15623 						PHY84833_CMDHDLR_MAX_ARGS);
15624 			if ((path == 0) && (cmd_args[1] == 0))
15625 				cmd_args[1] = cmd_args[0] + 5;
15626 			if (cmd_args[0] > cmd_args[1])
15627 				*temp_reading = (u32)cmd_args[0];
15628 			else
15629 				*temp_reading = (u32)cmd_args[1];
15630 
15631 			return rc;
15632 		}
15633 	}
15634 
15635 	return ELINK_STATUS_ERROR;
15636 }
15637 #ifndef EXCLUDE_WARPCORE
set_cfg_pin(struct elink_dev * cb,u32 pin_cfg,u32 val)15638 void set_cfg_pin(struct elink_dev *cb, u32 pin_cfg, u32 val)
15639 {
15640 	elink_set_cfg_pin(cb, pin_cfg, val);
15641 }
get_cfg_pin(struct elink_dev * cb,u32 pin_cfg,u32 * val)15642 int get_cfg_pin(struct elink_dev *cb, u32 pin_cfg, u32 *val)
15643 {
15644 	return elink_get_cfg_pin(cb, pin_cfg, val);
15645 }
15646 
elink_force_link(struct elink_params * params,int enable)15647 void elink_force_link(struct elink_params *params, int enable) {
15648 	struct elink_phy *phy = &params->phy[ELINK_INT_PHY];
15649 	struct elink_dev *cb = params->cb;
15650 	u8 lane = elink_get_warpcore_lane(phy, params);
15651 	u16 val;
15652 
15653 	/* Global register - operate on lane 0 */
15654 	CL22_WR_OVER_CL45(cb, phy, MDIO_REG_BANK_AER_BLOCK,
15655 			  MDIO_AER_BLOCK_AER_REG, 0);
15656 
15657 	elink_cl45_read(cb, phy, MDIO_PMA_DEVAD,
15658 			MDIO_WC_REG_XGXSBLK2_LANE_RESET, &val);
15659 	if (enable)
15660 		val &= ~(0x11 << lane);
15661 	else
15662 		val |= (0x11 << lane);
15663 	elink_cl45_write(cb, phy, MDIO_PMA_DEVAD,
15664 			 MDIO_WC_REG_XGXSBLK2_LANE_RESET,
15665 			 val);
15666 
15667 	/* Restore AER */
15668 	elink_set_aer_mmd(params, phy);
15669 }
15670 
15671 #endif /* EXCLUDE_WARPCORE */
15672 #endif /* #ifndef EXCLUDE_COMMON_INIT */
15673 #endif
15674