1 /* rtl8139.c - etherboot driver for the Realtek 8139 chipset
2 
3   ported from the linux driver written by Donald Becker
4   by Rainer Bawidamann (Rainer.Bawidamann@informatik.uni-ulm.de) 1999
5 
6   This software may be used and distributed according to the terms
7   of the GNU Public License, incorporated herein by reference.
8 
9   changes to the original driver:
10   - removed support for interrupts, switching to polling mode (yuck!)
11   - removed support for the 8129 chip (external MII)
12 
13 */
14 
15 /*********************************************************************/
16 /* Revision History                                                  */
17 /*********************************************************************/
18 
19 /*
20   28 Dec 2002	ken_yap@users.sourceforge.net (Ken Yap)
21      Put in virt_to_bus calls to allow Etherboot relocation.
22 
23   06 Apr 2001	ken_yap@users.sourceforge.net (Ken Yap)
24      Following email from Hyun-Joon Cha, added a disable routine, otherwise
25      NIC remains live and can crash the kernel later.
26 
27   4 Feb 2000	espenlaub@informatik.uni-ulm.de (Klaus Espenlaub)
28      Shuffled things around, removed the leftovers from the 8129 support
29      that was in the Linux driver and added a bit more 8139 definitions.
30      Moved the 8K receive buffer to a fixed, available address outside the
31      0x98000-0x9ffff range.  This is a bit of a hack, but currently the only
32      way to make room for the Etherboot features that need substantial amounts
33      of code like the ANSI console support.  Currently the buffer is just below
34      0x10000, so this even conforms to the tagged boot image specification,
35      which reserves the ranges 0x00000-0x10000 and 0x98000-0xA0000.  My
36      interpretation of this "reserved" is that Etherboot may do whatever it
37      likes, as long as its environment is kept intact (like the BIOS
38      variables).  Hopefully fixed rtl_poll() once and for all.  The symptoms
39      were that if Etherboot was left at the boot menu for several minutes, the
40      first eth_poll failed.  Seems like I am the only person who does this.
41      First of all I fixed the debugging code and then set out for a long bug
42      hunting session.  It took me about a week full time work - poking around
43      various places in the driver, reading Don Becker's and Jeff Garzik's Linux
44      driver and even the FreeBSD driver (what a piece of crap!) - and
45      eventually spotted the nasty thing: the transmit routine was acknowledging
46      each and every interrupt pending, including the RxOverrun and RxFIFIOver
47      interrupts.  This confused the RTL8139 thoroughly.  It destroyed the
48      Rx ring contents by dumping the 2K FIFO contents right where we wanted to
49      get the next packet.  Oh well, what fun.
50 
51   18 Jan 2000   mdc@thinguin.org (Marty Connor)
52      Drastically simplified error handling.  Basically, if any error
53      in transmission or reception occurs, the card is reset.
54      Also, pointed all transmit descriptors to the same buffer to
55      save buffer space.  This should decrease driver size and avoid
56      corruption because of exceeding 32K during runtime.
57 
58   28 Jul 1999   (Matthias Meixner - meixner@rbg.informatik.tu-darmstadt.de)
59      rtl_poll was quite broken: it used the RxOK interrupt flag instead
60      of the RxBufferEmpty flag which often resulted in very bad
61      transmission performace - below 1kBytes/s.
62 
63 */
64 
65 #include "etherboot.h"
66 #include "nic.h"
67 #include "pci.h"
68 #include "timer.h"
69 
70 #define RTL_TIMEOUT (1*TICKS_PER_SEC)
71 
72 /* PCI Tuning Parameters
73    Threshold is bytes transferred to chip before transmission starts. */
74 #define TX_FIFO_THRESH 256      /* In bytes, rounded down to 32 byte units. */
75 #define RX_FIFO_THRESH  4       /* Rx buffer level before first PCI xfer.  */
76 #define RX_DMA_BURST    4       /* Maximum PCI burst, '4' is 256 bytes */
77 #define TX_DMA_BURST    4       /* Calculate as 16<<val. */
78 #define NUM_TX_DESC     4       /* Number of Tx descriptor registers. */
79 #define TX_BUF_SIZE	ETH_FRAME_LEN	/* FCS is added by the chip */
80 #define RX_BUF_LEN_IDX 0	/* 0, 1, 2 is allowed - 8,16,32K rx buffer */
81 #define RX_BUF_LEN (8192 << RX_BUF_LEN_IDX)
82 
83 #undef DEBUG_TX
84 #undef DEBUG_RX
85 
86 /* Symbolic offsets to registers. */
87 enum RTL8139_registers {
88 	MAC0=0,			/* Ethernet hardware address. */
89 	MAR0=8,			/* Multicast filter. */
90 	TxStatus0=0x10,		/* Transmit status (four 32bit registers). */
91 	TxAddr0=0x20,		/* Tx descriptors (also four 32bit). */
92 	RxBuf=0x30, RxEarlyCnt=0x34, RxEarlyStatus=0x36,
93 	ChipCmd=0x37, RxBufPtr=0x38, RxBufAddr=0x3A,
94 	IntrMask=0x3C, IntrStatus=0x3E,
95 	TxConfig=0x40, RxConfig=0x44,
96 	Timer=0x48,		/* general-purpose counter. */
97 	RxMissed=0x4C,		/* 24 bits valid, write clears. */
98 	Cfg9346=0x50, Config0=0x51, Config1=0x52,
99 	TimerIntrReg=0x54,	/* intr if gp counter reaches this value */
100 	MediaStatus=0x58,
101 	Config3=0x59,
102 	MultiIntr=0x5C,
103 	RevisionID=0x5E,	/* revision of the RTL8139 chip */
104 	TxSummary=0x60,
105 	MII_BMCR=0x62, MII_BMSR=0x64, NWayAdvert=0x66, NWayLPAR=0x68,
106 	NWayExpansion=0x6A,
107 	DisconnectCnt=0x6C, FalseCarrierCnt=0x6E,
108 	NWayTestReg=0x70,
109 	RxCnt=0x72,		/* packet received counter */
110 	CSCR=0x74,		/* chip status and configuration register */
111 	PhyParm1=0x78,TwisterParm=0x7c,PhyParm2=0x80,	/* undocumented */
112 	/* from 0x84 onwards are a number of power management/wakeup frame
113 	 * definitions we will probably never need to know about.  */
114 };
115 
116 enum RxEarlyStatusBits {
117 	ERGood=0x08, ERBad=0x04, EROVW=0x02, EROK=0x01
118 };
119 
120 enum ChipCmdBits {
121 	CmdReset=0x10, CmdRxEnb=0x08, CmdTxEnb=0x04, RxBufEmpty=0x01, };
122 
123 enum IntrMaskBits {
124 	SERR=0x8000, TimeOut=0x4000, LenChg=0x2000,
125 	FOVW=0x40, PUN_LinkChg=0x20, RXOVW=0x10,
126 	TER=0x08, TOK=0x04, RER=0x02, ROK=0x01
127 };
128 
129 /* Interrupt register bits, using my own meaningful names. */
130 enum IntrStatusBits {
131 	PCIErr=0x8000, PCSTimeout=0x4000, CableLenChange= 0x2000,
132 	RxFIFOOver=0x40, RxUnderrun=0x20, RxOverflow=0x10,
133 	TxErr=0x08, TxOK=0x04, RxErr=0x02, RxOK=0x01,
134 };
135 enum TxStatusBits {
136 	TxHostOwns=0x2000, TxUnderrun=0x4000, TxStatOK=0x8000,
137 	TxOutOfWindow=0x20000000, TxAborted=0x40000000,
138 	TxCarrierLost=0x80000000,
139 };
140 enum RxStatusBits {
141 	RxMulticast=0x8000, RxPhysical=0x4000, RxBroadcast=0x2000,
142 	RxBadSymbol=0x0020, RxRunt=0x0010, RxTooLong=0x0008, RxCRCErr=0x0004,
143 	RxBadAlign=0x0002, RxStatusOK=0x0001,
144 };
145 
146 enum MediaStatusBits {
147 	MSRTxFlowEnable=0x80, MSRRxFlowEnable=0x40, MSRSpeed10=0x08,
148 	MSRLinkFail=0x04, MSRRxPauseFlag=0x02, MSRTxPauseFlag=0x01,
149 };
150 
151 enum MIIBMCRBits {
152 	BMCRReset=0x8000, BMCRSpeed100=0x2000, BMCRNWayEnable=0x1000,
153 	BMCRRestartNWay=0x0200, BMCRDuplex=0x0100,
154 };
155 
156 enum CSCRBits {
157 	CSCR_LinkOKBit=0x0400, CSCR_LinkChangeBit=0x0800,
158 	CSCR_LinkStatusBits=0x0f000, CSCR_LinkDownOffCmd=0x003c0,
159 	CSCR_LinkDownCmd=0x0f3c0,
160 };
161 
162 /* Bits in RxConfig. */
163 enum rx_mode_bits {
164 	RxCfgWrap=0x80,
165 	AcceptErr=0x20, AcceptRunt=0x10, AcceptBroadcast=0x08,
166 	AcceptMulticast=0x04, AcceptMyPhys=0x02, AcceptAllPhys=0x01,
167 };
168 
169 static unsigned int cur_rx,cur_tx;
170 
171 /* The RTL8139 can only transmit from a contiguous, aligned memory block.  */
172 static unsigned char tx_buffer[TX_BUF_SIZE] __attribute__((aligned(4)));
173 static unsigned char rx_ring[RX_BUF_LEN+16] __attribute__((aligned(4)));
174 
175 static int rtl8139_probe(struct dev *dev, struct pci_device *pci);
176 static int read_eeprom(struct nic *nic, int location, int addr_len);
177 static void rtl_reset(struct nic *nic);
178 static void rtl_transmit(struct nic *nic, const char *destaddr,
179 	unsigned int type, unsigned int len, const char *data);
180 static int rtl_poll(struct nic *nic, int retrieve);
181 static void rtl_disable(struct dev *);
182 static void rtl_irq(struct nic *nic, irq_action_t action);
183 
184 
rtl8139_probe(struct dev * dev,struct pci_device * pci)185 static int rtl8139_probe(struct dev *dev, struct pci_device *pci)
186 {
187 	struct nic *nic = (struct nic *)dev;
188 	int i;
189 	int speed10, fullduplex;
190 	int addr_len;
191 	unsigned short *ap = (unsigned short*)nic->node_addr;
192 
193 	/* There are enough "RTL8139" strings on the console already, so
194 	 * be brief and concentrate on the interesting pieces of info... */
195 	printf(" - ");
196 
197 	/* Mask the bit that says "this is an io addr" */
198 	nic->ioaddr = pci->ioaddr & ~3;
199 
200 	/* Copy IRQ from PCI information */
201 	nic->irqno = pci->irq;
202 
203 	adjust_pci_device(pci);
204 
205 	/* Bring the chip out of low-power mode. */
206 	outb(0x00, nic->ioaddr + Config1);
207 
208 	addr_len = read_eeprom(nic,0,8) == 0x8129 ? 8 : 6;
209 	for (i = 0; i < 3; i++)
210 	  *ap++ = read_eeprom(nic,i + 7,addr_len);
211 
212 	speed10 = inb(nic->ioaddr + MediaStatus) & MSRSpeed10;
213 	fullduplex = inw(nic->ioaddr + MII_BMCR) & BMCRDuplex;
214 	printf("ioaddr %#hX, irq %d, addr %! %sMbps %s-duplex\n", nic->ioaddr,
215 	       nic->irqno, nic->node_addr,  speed10 ? "10" : "100",
216 	       fullduplex ? "full" : "half");
217 
218 	rtl_reset(nic);
219 
220 	if (inb(nic->ioaddr + MediaStatus) & MSRLinkFail) {
221 		printf("Cable not connected or other link failure\n");
222 		return(0);
223 	}
224 
225 	dev->disable  = rtl_disable;
226 	nic->poll     = rtl_poll;
227 	nic->transmit = rtl_transmit;
228 	nic->irq      = rtl_irq;
229 
230 	return 1;
231 }
232 
233 /* Serial EEPROM section. */
234 
235 /*  EEPROM_Ctrl bits. */
236 #define EE_SHIFT_CLK    0x04    /* EEPROM shift clock. */
237 #define EE_CS           0x08    /* EEPROM chip select. */
238 #define EE_DATA_WRITE   0x02    /* EEPROM chip data in. */
239 #define EE_WRITE_0      0x00
240 #define EE_WRITE_1      0x02
241 #define EE_DATA_READ    0x01    /* EEPROM chip data out. */
242 #define EE_ENB          (0x80 | EE_CS)
243 
244 /*
245 	Delay between EEPROM clock transitions.
246 	No extra delay is needed with 33Mhz PCI, but 66Mhz may change this.
247 */
248 
249 #define eeprom_delay()  inl(ee_addr)
250 
251 /* The EEPROM commands include the alway-set leading bit. */
252 #define EE_WRITE_CMD    (5)
253 #define EE_READ_CMD     (6)
254 #define EE_ERASE_CMD    (7)
255 
read_eeprom(struct nic * nic,int location,int addr_len)256 static int read_eeprom(struct nic *nic, int location, int addr_len)
257 {
258 	int i;
259 	unsigned int retval = 0;
260 	long ee_addr = nic->ioaddr + Cfg9346;
261 	int read_cmd = location | (EE_READ_CMD << addr_len);
262 
263 	outb(EE_ENB & ~EE_CS, ee_addr);
264 	outb(EE_ENB, ee_addr);
265 	eeprom_delay();
266 
267 	/* Shift the read command bits out. */
268 	for (i = 4 + addr_len; i >= 0; i--) {
269 		int dataval = (read_cmd & (1 << i)) ? EE_DATA_WRITE : 0;
270 		outb(EE_ENB | dataval, ee_addr);
271 		eeprom_delay();
272 		outb(EE_ENB | dataval | EE_SHIFT_CLK, ee_addr);
273 		eeprom_delay();
274 	}
275 	outb(EE_ENB, ee_addr);
276 	eeprom_delay();
277 
278 	for (i = 16; i > 0; i--) {
279 		outb(EE_ENB | EE_SHIFT_CLK, ee_addr);
280 		eeprom_delay();
281 		retval = (retval << 1) | ((inb(ee_addr) & EE_DATA_READ) ? 1 : 0);
282 		outb(EE_ENB, ee_addr);
283 		eeprom_delay();
284 	}
285 
286 	/* Terminate the EEPROM access. */
287 	outb(~EE_CS, ee_addr);
288 	eeprom_delay();
289 	return retval;
290 }
291 
292 static const unsigned int rtl8139_rx_config =
293 	(RX_BUF_LEN_IDX << 11) |
294 	(RX_FIFO_THRESH << 13) |
295 	(RX_DMA_BURST << 8);
296 
set_rx_mode(struct nic * nic)297 static void set_rx_mode(struct nic *nic) {
298 	unsigned int mc_filter[2];
299 	int rx_mode;
300 	/* !IFF_PROMISC */
301 	rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys;
302 	mc_filter[1] = mc_filter[0] = 0xffffffff;
303 
304 	outl(rtl8139_rx_config | rx_mode, nic->ioaddr + RxConfig);
305 
306 	outl(mc_filter[0], nic->ioaddr + MAR0 + 0);
307 	outl(mc_filter[1], nic->ioaddr + MAR0 + 4);
308 }
309 
rtl_reset(struct nic * nic)310 static void rtl_reset(struct nic* nic)
311 {
312 	int i;
313 
314 	outb(CmdReset, nic->ioaddr + ChipCmd);
315 
316 	cur_rx = 0;
317 	cur_tx = 0;
318 
319 	/* Give the chip 10ms to finish the reset. */
320 	load_timer2(10*TICKS_PER_MS);
321 	while ((inb(nic->ioaddr + ChipCmd) & CmdReset) != 0 &&
322 	       timer2_running())
323 		/* wait */;
324 
325 	for (i = 0; i < ETH_ALEN; i++)
326 		outb(nic->node_addr[i], nic->ioaddr + MAC0 + i);
327 
328 	/* Must enable Tx/Rx before setting transfer thresholds! */
329 	outb(CmdRxEnb | CmdTxEnb, nic->ioaddr + ChipCmd);
330 	outl((RX_FIFO_THRESH<<13) | (RX_BUF_LEN_IDX<<11) | (RX_DMA_BURST<<8),
331 		nic->ioaddr + RxConfig);	  /* accept no frames yet!  */
332 	outl((TX_DMA_BURST<<8)|0x03000000, nic->ioaddr + TxConfig);
333 
334 	/* The Linux driver changes Config1 here to use a different LED pattern
335 	 * for half duplex or full/autodetect duplex (for full/autodetect, the
336 	 * outputs are TX/RX, Link10/100, FULL, while for half duplex it uses
337 	 * TX/RX, Link100, Link10).  This is messy, because it doesn't match
338 	 * the inscription on the mounting bracket.  It should not be changed
339 	 * from the configuration EEPROM default, because the card manufacturer
340 	 * should have set that to match the card.  */
341 
342 #ifdef	DEBUG_RX
343 	printf("rx ring address is %X\n",(unsigned long)rx_ring);
344 #endif
345 	outl((unsigned long)virt_to_bus(rx_ring), nic->ioaddr + RxBuf);
346 
347 
348 
349 	/* If we add multicast support, the MAR0 register would have to be
350 	 * initialized to 0xffffffffffffffff (two 32 bit accesses).  Etherboot
351 	 * only needs broadcast (for ARP/RARP/BOOTP/DHCP) and unicast.  */
352 
353 	outb(CmdRxEnb | CmdTxEnb, nic->ioaddr + ChipCmd);
354 
355 	outl(rtl8139_rx_config, nic->ioaddr + RxConfig);
356 
357 	/* Start the chip's Tx and Rx process. */
358 	outl(0, nic->ioaddr + RxMissed);
359 
360 	/* set_rx_mode */
361 	set_rx_mode(nic);
362 
363 	/* Disable all known interrupts by setting the interrupt mask. */
364 	outw(0, nic->ioaddr + IntrMask);
365 }
366 
rtl_transmit(struct nic * nic,const char * destaddr,unsigned int type,unsigned int len,const char * data)367 static void rtl_transmit(struct nic *nic, const char *destaddr,
368 	unsigned int type, unsigned int len, const char *data)
369 {
370 	unsigned int status, to, nstype;
371 	unsigned long txstatus;
372 
373 	/* nstype assignment moved up here to avoid gcc 3.0.3 compiler bug */
374 	nstype = htons(type);
375 	memcpy(tx_buffer, destaddr, ETH_ALEN);
376 	memcpy(tx_buffer + ETH_ALEN, nic->node_addr, ETH_ALEN);
377 	memcpy(tx_buffer + 2 * ETH_ALEN, &nstype, 2);
378 	memcpy(tx_buffer + ETH_HLEN, data, len);
379 
380 	len += ETH_HLEN;
381 #ifdef	DEBUG_TX
382 	printf("sending %d bytes ethtype %hX\n", len, type);
383 #endif
384 
385 	/* Note: RTL8139 doesn't auto-pad, send minimum payload (another 4
386 	 * bytes are sent automatically for the FCS, totalling to 64 bytes). */
387 	while (len < ETH_ZLEN) {
388 		tx_buffer[len++] = '\0';
389 	}
390 
391 	outl((unsigned long)virt_to_bus(tx_buffer), nic->ioaddr + TxAddr0 + cur_tx*4);
392 	outl(((TX_FIFO_THRESH<<11) & 0x003f0000) | len,
393 		nic->ioaddr + TxStatus0 + cur_tx*4);
394 
395 	to = currticks() + RTL_TIMEOUT;
396 
397 	do {
398 		status = inw(nic->ioaddr + IntrStatus);
399 		/* Only acknlowledge interrupt sources we can properly handle
400 		 * here - the RxOverflow/RxFIFOOver MUST be handled in the
401 		 * rtl_poll() function.  */
402 		outw(status & (TxOK | TxErr | PCIErr), nic->ioaddr + IntrStatus);
403 		if ((status & (TxOK | TxErr | PCIErr)) != 0) break;
404 	} while (currticks() < to);
405 
406 	txstatus = inl(nic->ioaddr+ TxStatus0 + cur_tx*4);
407 
408 	if (status & TxOK) {
409 		cur_tx = (cur_tx + 1) % NUM_TX_DESC;
410 #ifdef	DEBUG_TX
411 		printf("tx done (%d ticks), status %hX txstatus %X\n",
412 			to-currticks(), status, txstatus);
413 #endif
414 	} else {
415 #ifdef	DEBUG_TX
416 		printf("tx timeout/error (%d ticks), status %hX txstatus %X\n",
417 			currticks()-to, status, txstatus);
418 #endif
419 		rtl_reset(nic);
420 	}
421 }
422 
rtl_poll(struct nic * nic,int retrieve)423 static int rtl_poll(struct nic *nic, int retrieve)
424 {
425 	unsigned int status;
426 	unsigned int ring_offs;
427 	unsigned int rx_size, rx_status;
428 
429 	if (inb(nic->ioaddr + ChipCmd) & RxBufEmpty) {
430 		return 0;
431 	}
432 
433 	/* There is a packet ready */
434 	if ( ! retrieve ) return 1;
435 
436 	status = inw(nic->ioaddr + IntrStatus);
437 	/* See below for the rest of the interrupt acknowledges.  */
438 	outw(status & ~(RxFIFOOver | RxOverflow | RxOK), nic->ioaddr + IntrStatus);
439 
440 #ifdef	DEBUG_RX
441 	printf("rtl_poll: int %hX ", status);
442 #endif
443 
444 	ring_offs = cur_rx % RX_BUF_LEN;
445 	rx_status = *(unsigned int*)(rx_ring + ring_offs);
446 	rx_size = rx_status >> 16;
447 	rx_status &= 0xffff;
448 
449 	if ((rx_status & (RxBadSymbol|RxRunt|RxTooLong|RxCRCErr|RxBadAlign)) ||
450 	    (rx_size < ETH_ZLEN) || (rx_size > ETH_FRAME_LEN + 4)) {
451 		printf("rx error %hX\n", rx_status);
452 		rtl_reset(nic);	/* this clears all interrupts still pending */
453 		return 0;
454 	}
455 
456 	/* Received a good packet */
457 	nic->packetlen = rx_size - 4;	/* no one cares about the FCS */
458 	if (ring_offs+4+rx_size-4 > RX_BUF_LEN) {
459 		int semi_count = RX_BUF_LEN - ring_offs - 4;
460 
461 		memcpy(nic->packet, rx_ring + ring_offs + 4, semi_count);
462 		memcpy(nic->packet+semi_count, rx_ring, rx_size-4-semi_count);
463 #ifdef	DEBUG_RX
464 		printf("rx packet %d+%d bytes", semi_count,rx_size-4-semi_count);
465 #endif
466 	} else {
467 		memcpy(nic->packet, rx_ring + ring_offs + 4, nic->packetlen);
468 #ifdef	DEBUG_RX
469 		printf("rx packet %d bytes", rx_size-4);
470 #endif
471 	}
472 #ifdef	DEBUG_RX
473 	printf(" at %X type %hhX%hhX rxstatus %hX\n",
474 		(unsigned long)(rx_ring+ring_offs+4),
475 		nic->packet[12], nic->packet[13], rx_status);
476 #endif
477 	cur_rx = (cur_rx + rx_size + 4 + 3) & ~3;
478 	outw(cur_rx - 16, nic->ioaddr + RxBufPtr);
479 	/* See RTL8139 Programming Guide V0.1 for the official handling of
480 	 * Rx overflow situations.  The document itself contains basically no
481 	 * usable information, except for a few exception handling rules.  */
482 	outw(status & (RxFIFOOver | RxOverflow | RxOK), nic->ioaddr + IntrStatus);
483 	return 1;
484 }
485 
rtl_irq(struct nic * nic,irq_action_t action)486 static void rtl_irq(struct nic *nic, irq_action_t action)
487 {
488 	unsigned int mask;
489 	/* Bit of a guess as to which interrupts we should allow */
490 	unsigned int interested = ROK | RER | RXOVW | FOVW | SERR;
491 
492 	switch ( action ) {
493 	case DISABLE :
494 	case ENABLE :
495 		mask = inw(nic->ioaddr + IntrMask);
496 		mask = mask & ~interested;
497 		if ( action == ENABLE ) mask = mask | interested;
498 		outw(mask, nic->ioaddr + IntrMask);
499 		break;
500 	case FORCE :
501 		/* Apparently writing a 1 to this read-only bit of a
502 		 * read-only and otherwise unrelated register will
503 		 * force an interrupt.  If you ever want to see how
504 		 * not to write a datasheet, read the one for the
505 		 * RTL8139...
506 		 */
507 		outb(EROK, nic->ioaddr + RxEarlyStatus);
508 		break;
509 	}
510 }
511 
rtl_disable(struct dev * dev)512 static void rtl_disable(struct dev *dev)
513 {
514 	struct nic *nic = (struct nic *)dev;
515 	/* merge reset and disable */
516 	rtl_reset(nic);
517 
518 	/* reset the chip */
519 	outb(CmdReset, nic->ioaddr + ChipCmd);
520 
521 	/* 10 ms timeout */
522 	load_timer2(10*TICKS_PER_MS);
523 	while ((inb(nic->ioaddr + ChipCmd) & CmdReset) != 0 && timer2_running())
524 		/* wait */;
525 }
526 
527 static struct pci_id rtl8139_nics[] = {
528 PCI_ROM(0x10ec, 0x8129, "rtl8129",       "Realtek 8129"),
529 PCI_ROM(0x10ec, 0x8139, "rtl8139",       "Realtek 8139"),
530 PCI_ROM(0x10ec, 0x8138, "rtl8139b",      "Realtek 8139B"),
531 PCI_ROM(0x1186, 0x1300, "dfe538",        "DFE530TX+/DFE538TX"),
532 PCI_ROM(0x1113, 0x1211, "smc1211-1",     "SMC EZ10/100"),
533 PCI_ROM(0x1112, 0x1211, "smc1211",       "SMC EZ10/100"),
534 PCI_ROM(0x1500, 0x1360, "delta8139",     "Delta Electronics 8139"),
535 PCI_ROM(0x4033, 0x1360, "addtron8139",   "Addtron Technology 8139"),
536 PCI_ROM(0x1186, 0x1340, "dfe690txd",     "D-Link DFE690TXD"),
537 PCI_ROM(0x13d1, 0xab06, "fe2000vx",      "AboCom FE2000VX"),
538 PCI_ROM(0x1259, 0xa117, "allied8139",    "Allied Telesyn 8139"),
539 PCI_ROM(0x14ea, 0xab06, "fnw3603tx",     "Planex FNW-3603-TX"),
540 PCI_ROM(0x14ea, 0xab07, "fnw3800tx",     "Planex FNW-3800-TX"),
541 PCI_ROM(0xffff, 0x8139, "clone-rtl8139", "Cloned 8139"),
542 };
543 
544 struct pci_driver rtl8139_driver = {
545 	.type     = NIC_DRIVER,
546 	.name     = "RTL8139",
547 	.probe    = rtl8139_probe,
548 	.ids      = rtl8139_nics,
549 	.id_count = sizeof(rtl8139_nics)/sizeof(rtl8139_nics[0]),
550 	.class    = 0,
551 };
552