1 /*
2 drivers/net/tulip/media.c
3
4 Maintained by Jeff Garzik <jgarzik@pobox.com>
5 Copyright 2000,2001 The Linux Kernel Team
6 Written/copyright 1994-2001 by Donald Becker.
7
8 This software may be used and distributed according to the terms
9 of the GNU General Public License, incorporated herein by reference.
10
11 Please refer to Documentation/DocBook/tulip.{pdf,ps,html}
12 for more information on this driver, or visit the project
13 Web page at http://sourceforge.net/projects/tulip/
14
15 */
16
17 #include <linux/kernel.h>
18 #include <linux/mii.h>
19 #include <linux/init.h>
20 #include <linux/delay.h>
21 #include <linux/pci.h>
22 #include "tulip.h"
23
24
25 /* This is a mysterious value that can be written to CSR11 in the 21040 (only)
26 to support a pre-NWay full-duplex signaling mechanism using short frames.
27 No one knows what it should be, but if left at its default value some
28 10base2(!) packets trigger a full-duplex-request interrupt. */
29 #define FULL_DUPLEX_MAGIC 0x6969
30
31 /* The maximum data clock rate is 2.5 Mhz. The minimum timing is usually
32 met by back-to-back PCI I/O cycles, but we insert a delay to avoid
33 "overclocking" issues or future 66Mhz PCI. */
34 #define mdio_delay() inl(mdio_addr)
35
36 /* Read and write the MII registers using software-generated serial
37 MDIO protocol. It is just different enough from the EEPROM protocol
38 to not share code. The maxium data clock rate is 2.5 Mhz. */
39 #define MDIO_SHIFT_CLK 0x10000
40 #define MDIO_DATA_WRITE0 0x00000
41 #define MDIO_DATA_WRITE1 0x20000
42 #define MDIO_ENB 0x00000 /* Ignore the 0x02000 databook setting. */
43 #define MDIO_ENB_IN 0x40000
44 #define MDIO_DATA_READ 0x80000
45
46 static const unsigned char comet_miireg2offset[32] = {
47 0xB4, 0xB8, 0xBC, 0xC0, 0xC4, 0xC8, 0xCC, 0, 0,0,0,0, 0,0,0,0,
48 0,0xD0,0,0, 0,0,0,0, 0,0,0,0, 0, 0xD4, 0xD8, 0xDC, };
49
50
51 /* MII transceiver control section.
52 Read and write the MII registers using software-generated serial
53 MDIO protocol. See the MII specifications or DP83840A data sheet
54 for details. */
55
tulip_mdio_read(struct net_device * dev,int phy_id,int location)56 int tulip_mdio_read(struct net_device *dev, int phy_id, int location)
57 {
58 struct tulip_private *tp = (struct tulip_private *)dev->priv;
59 int i;
60 int read_cmd = (0xf6 << 10) | ((phy_id & 0x1f) << 5) | location;
61 int retval = 0;
62 long ioaddr = dev->base_addr;
63 long mdio_addr = ioaddr + CSR9;
64 unsigned long flags;
65
66 if (location & ~0x1f)
67 return 0xffff;
68
69 if (tp->chip_id == COMET && phy_id == 30) {
70 if (comet_miireg2offset[location])
71 return inl(ioaddr + comet_miireg2offset[location]);
72 return 0xffff;
73 }
74
75 spin_lock_irqsave(&tp->mii_lock, flags);
76 if (tp->chip_id == LC82C168) {
77 int i = 1000;
78 outl(0x60020000 + (phy_id<<23) + (location<<18), ioaddr + 0xA0);
79 inl(ioaddr + 0xA0);
80 inl(ioaddr + 0xA0);
81 while (--i > 0) {
82 barrier();
83 if ( ! ((retval = inl(ioaddr + 0xA0)) & 0x80000000))
84 break;
85 }
86 spin_unlock_irqrestore(&tp->mii_lock, flags);
87 return retval & 0xffff;
88 }
89
90 /* Establish sync by sending at least 32 logic ones. */
91 for (i = 32; i >= 0; i--) {
92 outl(MDIO_ENB | MDIO_DATA_WRITE1, mdio_addr);
93 mdio_delay();
94 outl(MDIO_ENB | MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, mdio_addr);
95 mdio_delay();
96 }
97 /* Shift the read command bits out. */
98 for (i = 15; i >= 0; i--) {
99 int dataval = (read_cmd & (1 << i)) ? MDIO_DATA_WRITE1 : 0;
100
101 outl(MDIO_ENB | dataval, mdio_addr);
102 mdio_delay();
103 outl(MDIO_ENB | dataval | MDIO_SHIFT_CLK, mdio_addr);
104 mdio_delay();
105 }
106 /* Read the two transition, 16 data, and wire-idle bits. */
107 for (i = 19; i > 0; i--) {
108 outl(MDIO_ENB_IN, mdio_addr);
109 mdio_delay();
110 retval = (retval << 1) | ((inl(mdio_addr) & MDIO_DATA_READ) ? 1 : 0);
111 outl(MDIO_ENB_IN | MDIO_SHIFT_CLK, mdio_addr);
112 mdio_delay();
113 }
114
115 spin_unlock_irqrestore(&tp->mii_lock, flags);
116 return (retval>>1) & 0xffff;
117 }
118
tulip_mdio_write(struct net_device * dev,int phy_id,int location,int val)119 void tulip_mdio_write(struct net_device *dev, int phy_id, int location, int val)
120 {
121 struct tulip_private *tp = (struct tulip_private *)dev->priv;
122 int i;
123 int cmd = (0x5002 << 16) | ((phy_id & 0x1f) << 23) | (location<<18) | (val & 0xffff);
124 long ioaddr = dev->base_addr;
125 long mdio_addr = ioaddr + CSR9;
126 unsigned long flags;
127
128 if (location & ~0x1f)
129 return;
130
131 if (tp->chip_id == COMET && phy_id == 30) {
132 if (comet_miireg2offset[location])
133 outl(val, ioaddr + comet_miireg2offset[location]);
134 return;
135 }
136
137 spin_lock_irqsave(&tp->mii_lock, flags);
138 if (tp->chip_id == LC82C168) {
139 int i = 1000;
140 outl(cmd, ioaddr + 0xA0);
141 do {
142 barrier();
143 if ( ! (inl(ioaddr + 0xA0) & 0x80000000))
144 break;
145 } while (--i > 0);
146 spin_unlock_irqrestore(&tp->mii_lock, flags);
147 return;
148 }
149
150 /* Establish sync by sending 32 logic ones. */
151 for (i = 32; i >= 0; i--) {
152 outl(MDIO_ENB | MDIO_DATA_WRITE1, mdio_addr);
153 mdio_delay();
154 outl(MDIO_ENB | MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, mdio_addr);
155 mdio_delay();
156 }
157 /* Shift the command bits out. */
158 for (i = 31; i >= 0; i--) {
159 int dataval = (cmd & (1 << i)) ? MDIO_DATA_WRITE1 : 0;
160 outl(MDIO_ENB | dataval, mdio_addr);
161 mdio_delay();
162 outl(MDIO_ENB | dataval | MDIO_SHIFT_CLK, mdio_addr);
163 mdio_delay();
164 }
165 /* Clear out extra bits. */
166 for (i = 2; i > 0; i--) {
167 outl(MDIO_ENB_IN, mdio_addr);
168 mdio_delay();
169 outl(MDIO_ENB_IN | MDIO_SHIFT_CLK, mdio_addr);
170 mdio_delay();
171 }
172
173 spin_unlock_irqrestore(&tp->mii_lock, flags);
174 }
175
176
177 /* Set up the transceiver control registers for the selected media type. */
tulip_select_media(struct net_device * dev,int startup)178 void tulip_select_media(struct net_device *dev, int startup)
179 {
180 long ioaddr = dev->base_addr;
181 struct tulip_private *tp = (struct tulip_private *)dev->priv;
182 struct mediatable *mtable = tp->mtable;
183 u32 new_csr6;
184 int i;
185
186 if (mtable) {
187 struct medialeaf *mleaf = &mtable->mleaf[tp->cur_index];
188 unsigned char *p = mleaf->leafdata;
189 switch (mleaf->type) {
190 case 0: /* 21140 non-MII xcvr. */
191 if (tulip_debug > 1)
192 printk(KERN_DEBUG "%s: Using a 21140 non-MII transceiver"
193 " with control setting %2.2x.\n",
194 dev->name, p[1]);
195 dev->if_port = p[0];
196 if (startup)
197 outl(mtable->csr12dir | 0x100, ioaddr + CSR12);
198 outl(p[1], ioaddr + CSR12);
199 new_csr6 = 0x02000000 | ((p[2] & 0x71) << 18);
200 break;
201 case 2: case 4: {
202 u16 setup[5];
203 u32 csr13val, csr14val, csr15dir, csr15val;
204 for (i = 0; i < 5; i++)
205 setup[i] = get_u16(&p[i*2 + 1]);
206
207 dev->if_port = p[0] & MEDIA_MASK;
208 if (tulip_media_cap[dev->if_port] & MediaAlwaysFD)
209 tp->full_duplex = 1;
210
211 if (startup && mtable->has_reset) {
212 struct medialeaf *rleaf = &mtable->mleaf[mtable->has_reset];
213 unsigned char *rst = rleaf->leafdata;
214 if (tulip_debug > 1)
215 printk(KERN_DEBUG "%s: Resetting the transceiver.\n",
216 dev->name);
217 for (i = 0; i < rst[0]; i++)
218 outl(get_u16(rst + 1 + (i<<1)) << 16, ioaddr + CSR15);
219 }
220 if (tulip_debug > 1)
221 printk(KERN_DEBUG "%s: 21143 non-MII %s transceiver control "
222 "%4.4x/%4.4x.\n",
223 dev->name, medianame[dev->if_port], setup[0], setup[1]);
224 if (p[0] & 0x40) { /* SIA (CSR13-15) setup values are provided. */
225 csr13val = setup[0];
226 csr14val = setup[1];
227 csr15dir = (setup[3]<<16) | setup[2];
228 csr15val = (setup[4]<<16) | setup[2];
229 outl(0, ioaddr + CSR13);
230 outl(csr14val, ioaddr + CSR14);
231 outl(csr15dir, ioaddr + CSR15); /* Direction */
232 outl(csr15val, ioaddr + CSR15); /* Data */
233 outl(csr13val, ioaddr + CSR13);
234 } else {
235 csr13val = 1;
236 csr14val = 0;
237 csr15dir = (setup[0]<<16) | 0x0008;
238 csr15val = (setup[1]<<16) | 0x0008;
239 if (dev->if_port <= 4)
240 csr14val = t21142_csr14[dev->if_port];
241 if (startup) {
242 outl(0, ioaddr + CSR13);
243 outl(csr14val, ioaddr + CSR14);
244 }
245 outl(csr15dir, ioaddr + CSR15); /* Direction */
246 outl(csr15val, ioaddr + CSR15); /* Data */
247 if (startup) outl(csr13val, ioaddr + CSR13);
248 }
249 if (tulip_debug > 1)
250 printk(KERN_DEBUG "%s: Setting CSR15 to %8.8x/%8.8x.\n",
251 dev->name, csr15dir, csr15val);
252 if (mleaf->type == 4)
253 new_csr6 = 0x82020000 | ((setup[2] & 0x71) << 18);
254 else
255 new_csr6 = 0x82420000;
256 break;
257 }
258 case 1: case 3: {
259 int phy_num = p[0];
260 int init_length = p[1];
261 u16 *misc_info, tmp_info;
262
263 dev->if_port = 11;
264 new_csr6 = 0x020E0000;
265 if (mleaf->type == 3) { /* 21142 */
266 u16 *init_sequence = (u16*)(p+2);
267 u16 *reset_sequence = &((u16*)(p+3))[init_length];
268 int reset_length = p[2 + init_length*2];
269 misc_info = reset_sequence + reset_length;
270 if (startup)
271 for (i = 0; i < reset_length; i++)
272 outl(get_u16(&reset_sequence[i]) << 16, ioaddr + CSR15);
273 for (i = 0; i < init_length; i++)
274 outl(get_u16(&init_sequence[i]) << 16, ioaddr + CSR15);
275 } else {
276 u8 *init_sequence = p + 2;
277 u8 *reset_sequence = p + 3 + init_length;
278 int reset_length = p[2 + init_length];
279 misc_info = (u16*)(reset_sequence + reset_length);
280 if (startup) {
281 outl(mtable->csr12dir | 0x100, ioaddr + CSR12);
282 for (i = 0; i < reset_length; i++)
283 outl(reset_sequence[i], ioaddr + CSR12);
284 }
285 for (i = 0; i < init_length; i++)
286 outl(init_sequence[i], ioaddr + CSR12);
287 }
288 tmp_info = get_u16(&misc_info[1]);
289 if (tmp_info)
290 tp->advertising[phy_num] = tmp_info | 1;
291 if (tmp_info && startup < 2) {
292 if (tp->mii_advertise == 0)
293 tp->mii_advertise = tp->advertising[phy_num];
294 if (tulip_debug > 1)
295 printk(KERN_DEBUG "%s: Advertising %4.4x on MII %d.\n",
296 dev->name, tp->mii_advertise, tp->phys[phy_num]);
297 tulip_mdio_write(dev, tp->phys[phy_num], 4, tp->mii_advertise);
298 }
299 break;
300 }
301 case 5: case 6: {
302 u16 setup[5];
303
304 new_csr6 = 0; /* FIXME */
305
306 for (i = 0; i < 5; i++)
307 setup[i] = get_u16(&p[i*2 + 1]);
308
309 if (startup && mtable->has_reset) {
310 struct medialeaf *rleaf = &mtable->mleaf[mtable->has_reset];
311 unsigned char *rst = rleaf->leafdata;
312 if (tulip_debug > 1)
313 printk(KERN_DEBUG "%s: Resetting the transceiver.\n",
314 dev->name);
315 for (i = 0; i < rst[0]; i++)
316 outl(get_u16(rst + 1 + (i<<1)) << 16, ioaddr + CSR15);
317 }
318
319 break;
320 }
321 default:
322 printk(KERN_DEBUG "%s: Invalid media table selection %d.\n",
323 dev->name, mleaf->type);
324 new_csr6 = 0x020E0000;
325 }
326 if (tulip_debug > 1)
327 printk(KERN_DEBUG "%s: Using media type %s, CSR12 is %2.2x.\n",
328 dev->name, medianame[dev->if_port],
329 inl(ioaddr + CSR12) & 0xff);
330 } else if (tp->chip_id == DC21041) {
331 int port = dev->if_port <= 4 ? dev->if_port : 0;
332 if (tulip_debug > 1)
333 printk(KERN_DEBUG "%s: 21041 using media %s, CSR12 is %4.4x.\n",
334 dev->name, medianame[port == 3 ? 12: port],
335 inl(ioaddr + CSR12));
336 outl(0x00000000, ioaddr + CSR13); /* Reset the serial interface */
337 outl(t21041_csr14[port], ioaddr + CSR14);
338 outl(t21041_csr15[port], ioaddr + CSR15);
339 outl(t21041_csr13[port], ioaddr + CSR13);
340 new_csr6 = 0x80020000;
341 } else if (tp->chip_id == LC82C168) {
342 if (startup && ! tp->medialock)
343 dev->if_port = tp->mii_cnt ? 11 : 0;
344 if (tulip_debug > 1)
345 printk(KERN_DEBUG "%s: PNIC PHY status is %3.3x, media %s.\n",
346 dev->name, inl(ioaddr + 0xB8), medianame[dev->if_port]);
347 if (tp->mii_cnt) {
348 new_csr6 = 0x810C0000;
349 outl(0x0001, ioaddr + CSR15);
350 outl(0x0201B07A, ioaddr + 0xB8);
351 } else if (startup) {
352 /* Start with 10mbps to do autonegotiation. */
353 outl(0x32, ioaddr + CSR12);
354 new_csr6 = 0x00420000;
355 outl(0x0001B078, ioaddr + 0xB8);
356 outl(0x0201B078, ioaddr + 0xB8);
357 } else if (dev->if_port == 3 || dev->if_port == 5) {
358 outl(0x33, ioaddr + CSR12);
359 new_csr6 = 0x01860000;
360 /* Trigger autonegotiation. */
361 outl(startup ? 0x0201F868 : 0x0001F868, ioaddr + 0xB8);
362 } else {
363 outl(0x32, ioaddr + CSR12);
364 new_csr6 = 0x00420000;
365 outl(0x1F078, ioaddr + 0xB8);
366 }
367 } else if (tp->chip_id == DC21040) { /* 21040 */
368 /* Turn on the xcvr interface. */
369 int csr12 = inl(ioaddr + CSR12);
370 if (tulip_debug > 1)
371 printk(KERN_DEBUG "%s: 21040 media type is %s, CSR12 is %2.2x.\n",
372 dev->name, medianame[dev->if_port], csr12);
373 if (tulip_media_cap[dev->if_port] & MediaAlwaysFD)
374 tp->full_duplex = 1;
375 new_csr6 = 0x20000;
376 /* Set the full duplux match frame. */
377 outl(FULL_DUPLEX_MAGIC, ioaddr + CSR11);
378 outl(0x00000000, ioaddr + CSR13); /* Reset the serial interface */
379 if (t21040_csr13[dev->if_port] & 8) {
380 outl(0x0705, ioaddr + CSR14);
381 outl(0x0006, ioaddr + CSR15);
382 } else {
383 outl(0xffff, ioaddr + CSR14);
384 outl(0x0000, ioaddr + CSR15);
385 }
386 outl(0x8f01 | t21040_csr13[dev->if_port], ioaddr + CSR13);
387 } else { /* Unknown chip type with no media table. */
388 if (tp->default_port == 0)
389 dev->if_port = tp->mii_cnt ? 11 : 3;
390 if (tulip_media_cap[dev->if_port] & MediaIsMII) {
391 new_csr6 = 0x020E0000;
392 } else if (tulip_media_cap[dev->if_port] & MediaIsFx) {
393 new_csr6 = 0x02860000;
394 } else
395 new_csr6 = 0x03860000;
396 if (tulip_debug > 1)
397 printk(KERN_DEBUG "%s: No media description table, assuming "
398 "%s transceiver, CSR12 %2.2x.\n",
399 dev->name, medianame[dev->if_port],
400 inl(ioaddr + CSR12));
401 }
402
403 tp->csr6 = new_csr6 | (tp->csr6 & 0xfdff) | (tp->full_duplex ? 0x0200 : 0);
404 return;
405 }
406
407 /*
408 Check the MII negotiated duplex and change the CSR6 setting if
409 required.
410 Return 0 if everything is OK.
411 Return < 0 if the transceiver is missing or has no link beat.
412 */
tulip_check_duplex(struct net_device * dev)413 int tulip_check_duplex(struct net_device *dev)
414 {
415 struct tulip_private *tp = dev->priv;
416 unsigned int bmsr, lpa, negotiated, new_csr6;
417
418 bmsr = tulip_mdio_read(dev, tp->phys[0], MII_BMSR);
419 lpa = tulip_mdio_read(dev, tp->phys[0], MII_LPA);
420 if (tulip_debug > 1)
421 printk(KERN_INFO "%s: MII status %4.4x, Link partner report "
422 "%4.4x.\n", dev->name, bmsr, lpa);
423 if (bmsr == 0xffff)
424 return -2;
425 if ((bmsr & BMSR_LSTATUS) == 0) {
426 int new_bmsr = tulip_mdio_read(dev, tp->phys[0], MII_BMSR);
427 if ((new_bmsr & BMSR_LSTATUS) == 0) {
428 if (tulip_debug > 1)
429 printk(KERN_INFO "%s: No link beat on the MII interface,"
430 " status %4.4x.\n", dev->name, new_bmsr);
431 return -1;
432 }
433 }
434 negotiated = lpa & tp->advertising[0];
435 tp->full_duplex = mii_duplex(tp->full_duplex_lock, negotiated);
436
437 new_csr6 = tp->csr6;
438
439 if (negotiated & LPA_100) new_csr6 &= ~TxThreshold;
440 else new_csr6 |= TxThreshold;
441 if (tp->full_duplex) new_csr6 |= FullDuplex;
442 else new_csr6 &= ~FullDuplex;
443
444 if (new_csr6 != tp->csr6) {
445 tp->csr6 = new_csr6;
446 tulip_restart_rxtx(tp);
447
448 if (tulip_debug > 0)
449 printk(KERN_INFO "%s: Setting %s-duplex based on MII"
450 "#%d link partner capability of %4.4x.\n",
451 dev->name, tp->full_duplex ? "full" : "half",
452 tp->phys[0], lpa);
453 return 1;
454 }
455
456 return 0;
457 }
458
tulip_find_mii(struct net_device * dev,int board_idx)459 void __devinit tulip_find_mii (struct net_device *dev, int board_idx)
460 {
461 struct tulip_private *tp = dev->priv;
462 int phyn, phy_idx = 0;
463 int mii_reg0;
464 int mii_advert;
465 unsigned int to_advert, new_bmcr, ane_switch;
466
467 /* Find the connected MII xcvrs.
468 Doing this in open() would allow detecting external xcvrs later,
469 but takes much time. */
470 for (phyn = 1; phyn <= 32 && phy_idx < sizeof (tp->phys); phyn++) {
471 int phy = phyn & 0x1f;
472 int mii_status = tulip_mdio_read (dev, phy, MII_BMSR);
473 if ((mii_status & 0x8301) == 0x8001 ||
474 ((mii_status & BMSR_100BASE4) == 0
475 && (mii_status & 0x7800) != 0)) {
476 /* preserve Becker logic, gain indentation level */
477 } else {
478 continue;
479 }
480
481 mii_reg0 = tulip_mdio_read (dev, phy, MII_BMCR);
482 mii_advert = tulip_mdio_read (dev, phy, MII_ADVERTISE);
483 ane_switch = 0;
484
485 /* if not advertising at all, gen an
486 * advertising value from the capability
487 * bits in BMSR
488 */
489 if ((mii_advert & ADVERTISE_ALL) == 0) {
490 unsigned int tmpadv = tulip_mdio_read (dev, phy, MII_BMSR);
491 mii_advert = ((tmpadv >> 6) & 0x3e0) | 1;
492 }
493
494 if (tp->mii_advertise) {
495 tp->advertising[phy_idx] =
496 to_advert = tp->mii_advertise;
497 } else if (tp->advertising[phy_idx]) {
498 to_advert = tp->advertising[phy_idx];
499 } else {
500 tp->advertising[phy_idx] =
501 tp->mii_advertise =
502 to_advert = mii_advert;
503 }
504
505 tp->phys[phy_idx++] = phy;
506
507 printk (KERN_INFO "tulip%d: MII transceiver #%d "
508 "config %4.4x status %4.4x advertising %4.4x.\n",
509 board_idx, phy, mii_reg0, mii_status, mii_advert);
510
511 /* Fixup for DLink with miswired PHY. */
512 if (mii_advert != to_advert) {
513 printk (KERN_DEBUG "tulip%d: Advertising %4.4x on PHY %d,"
514 " previously advertising %4.4x.\n",
515 board_idx, to_advert, phy, mii_advert);
516 tulip_mdio_write (dev, phy, 4, to_advert);
517 }
518
519 /* Enable autonegotiation: some boards default to off. */
520 if (tp->default_port == 0) {
521 new_bmcr = mii_reg0 | BMCR_ANENABLE;
522 if (new_bmcr != mii_reg0) {
523 new_bmcr |= BMCR_ANRESTART;
524 ane_switch = 1;
525 }
526 }
527 /* ...or disable nway, if forcing media */
528 else {
529 new_bmcr = mii_reg0 & ~BMCR_ANENABLE;
530 if (new_bmcr != mii_reg0)
531 ane_switch = 1;
532 }
533
534 /* clear out bits we never want at this point */
535 new_bmcr &= ~(BMCR_CTST | BMCR_FULLDPLX | BMCR_ISOLATE |
536 BMCR_PDOWN | BMCR_SPEED100 | BMCR_LOOPBACK |
537 BMCR_RESET);
538
539 if (tp->full_duplex)
540 new_bmcr |= BMCR_FULLDPLX;
541 if (tulip_media_cap[tp->default_port] & MediaIs100)
542 new_bmcr |= BMCR_SPEED100;
543
544 if (new_bmcr != mii_reg0) {
545 /* some phys need the ANE switch to
546 * happen before forced media settings
547 * will "take." However, we write the
548 * same value twice in order not to
549 * confuse the sane phys.
550 */
551 if (ane_switch) {
552 tulip_mdio_write (dev, phy, MII_BMCR, new_bmcr);
553 udelay (10);
554 }
555 tulip_mdio_write (dev, phy, MII_BMCR, new_bmcr);
556 }
557 }
558 tp->mii_cnt = phy_idx;
559 if (tp->mtable && tp->mtable->has_mii && phy_idx == 0) {
560 printk (KERN_INFO "tulip%d: ***WARNING***: No MII transceiver found!\n",
561 board_idx);
562 tp->phys[0] = 1;
563 }
564 }
565