blob: baef60f827466c8bf2d1227da0c850907774768c [file] [log] [blame]
Andy Fleming5f184712011-04-08 02:10:27 -05001/*
2 * Generic PHY Management code
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License as
6 * published by the Free Software Foundation; either version 2 of
7 * the License, or (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
17 * MA 02111-1307 USA
18 *
19 *
20 * Copyright 2011 Freescale Semiconductor, Inc.
21 * author Andy Fleming
22 *
23 * Based loosely off of Linux's PHY Lib
24 */
25
26#include <config.h>
27#include <common.h>
28#include <malloc.h>
29#include <net.h>
30#include <command.h>
31#include <miiphy.h>
32#include <phy.h>
33#include <errno.h>
34
35/* Generic PHY support and helper functions */
36
37/**
38 * genphy_config_advert - sanitize and advertise auto-negotation parameters
39 * @phydev: target phy_device struct
40 *
41 * Description: Writes MII_ADVERTISE with the appropriate values,
42 * after sanitizing the values to make sure we only advertise
43 * what is supported. Returns < 0 on error, 0 if the PHY's advertisement
44 * hasn't changed, and > 0 if it has changed.
45 */
46int genphy_config_advert(struct phy_device *phydev)
47{
48 u32 advertise;
49 int oldadv, adv;
50 int err, changed = 0;
51
52 /* Only allow advertising what
53 * this PHY supports */
54 phydev->advertising &= phydev->supported;
55 advertise = phydev->advertising;
56
57 /* Setup standard advertisement */
58 oldadv = adv = phy_read(phydev, MDIO_DEVAD_NONE, MII_ADVERTISE);
59
60 if (adv < 0)
61 return adv;
62
63 adv &= ~(ADVERTISE_ALL | ADVERTISE_100BASE4 | ADVERTISE_PAUSE_CAP |
64 ADVERTISE_PAUSE_ASYM);
65 if (advertise & ADVERTISED_10baseT_Half)
66 adv |= ADVERTISE_10HALF;
67 if (advertise & ADVERTISED_10baseT_Full)
68 adv |= ADVERTISE_10FULL;
69 if (advertise & ADVERTISED_100baseT_Half)
70 adv |= ADVERTISE_100HALF;
71 if (advertise & ADVERTISED_100baseT_Full)
72 adv |= ADVERTISE_100FULL;
73 if (advertise & ADVERTISED_Pause)
74 adv |= ADVERTISE_PAUSE_CAP;
75 if (advertise & ADVERTISED_Asym_Pause)
76 adv |= ADVERTISE_PAUSE_ASYM;
77
78 if (adv != oldadv) {
79 err = phy_write(phydev, MDIO_DEVAD_NONE, MII_ADVERTISE, adv);
80
81 if (err < 0)
82 return err;
83 changed = 1;
84 }
85
86 /* Configure gigabit if it's supported */
87 if (phydev->supported & (SUPPORTED_1000baseT_Half |
88 SUPPORTED_1000baseT_Full)) {
89 oldadv = adv = phy_read(phydev, MDIO_DEVAD_NONE, MII_CTRL1000);
90
91 if (adv < 0)
92 return adv;
93
94 adv &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF);
95 if (advertise & SUPPORTED_1000baseT_Half)
96 adv |= ADVERTISE_1000HALF;
97 if (advertise & SUPPORTED_1000baseT_Full)
98 adv |= ADVERTISE_1000FULL;
99
100 if (adv != oldadv) {
101 err = phy_write(phydev, MDIO_DEVAD_NONE, MII_CTRL1000,
102 adv);
103
104 if (err < 0)
105 return err;
106 changed = 1;
107 }
108 }
109
110 return changed;
111}
112
113
114/**
115 * genphy_setup_forced - configures/forces speed/duplex from @phydev
116 * @phydev: target phy_device struct
117 *
118 * Description: Configures MII_BMCR to force speed/duplex
119 * to the values in phydev. Assumes that the values are valid.
120 */
121int genphy_setup_forced(struct phy_device *phydev)
122{
123 int err;
124 int ctl = 0;
125
126 phydev->pause = phydev->asym_pause = 0;
127
128 if (SPEED_1000 == phydev->speed)
129 ctl |= BMCR_SPEED1000;
130 else if (SPEED_100 == phydev->speed)
131 ctl |= BMCR_SPEED100;
132
133 if (DUPLEX_FULL == phydev->duplex)
134 ctl |= BMCR_FULLDPLX;
135
136 err = phy_write(phydev, MDIO_DEVAD_NONE, MII_BMCR, ctl);
137
138 return err;
139}
140
141
142/**
143 * genphy_restart_aneg - Enable and Restart Autonegotiation
144 * @phydev: target phy_device struct
145 */
146int genphy_restart_aneg(struct phy_device *phydev)
147{
148 int ctl;
149
150 ctl = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMCR);
151
152 if (ctl < 0)
153 return ctl;
154
155 ctl |= (BMCR_ANENABLE | BMCR_ANRESTART);
156
157 /* Don't isolate the PHY if we're negotiating */
158 ctl &= ~(BMCR_ISOLATE);
159
160 ctl = phy_write(phydev, MDIO_DEVAD_NONE, MII_BMCR, ctl);
161
162 return ctl;
163}
164
165
166/**
167 * genphy_config_aneg - restart auto-negotiation or write BMCR
168 * @phydev: target phy_device struct
169 *
170 * Description: If auto-negotiation is enabled, we configure the
171 * advertising, and then restart auto-negotiation. If it is not
172 * enabled, then we write the BMCR.
173 */
174int genphy_config_aneg(struct phy_device *phydev)
175{
176 int result;
177
178 if (AUTONEG_ENABLE != phydev->autoneg)
179 return genphy_setup_forced(phydev);
180
181 result = genphy_config_advert(phydev);
182
183 if (result < 0) /* error */
184 return result;
185
186 if (result == 0) {
187 /* Advertisment hasn't changed, but maybe aneg was never on to
188 * begin with? Or maybe phy was isolated? */
189 int ctl = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMCR);
190
191 if (ctl < 0)
192 return ctl;
193
194 if (!(ctl & BMCR_ANENABLE) || (ctl & BMCR_ISOLATE))
195 result = 1; /* do restart aneg */
196 }
197
198 /* Only restart aneg if we are advertising something different
199 * than we were before. */
200 if (result > 0)
201 result = genphy_restart_aneg(phydev);
202
203 return result;
204}
205
206/**
207 * genphy_update_link - update link status in @phydev
208 * @phydev: target phy_device struct
209 *
210 * Description: Update the value in phydev->link to reflect the
211 * current link value. In order to do this, we need to read
212 * the status register twice, keeping the second value.
213 */
214int genphy_update_link(struct phy_device *phydev)
215{
216 unsigned int mii_reg;
217
218 /*
219 * Wait if the link is up, and autonegotiation is in progress
220 * (ie - we're capable and it's not done)
221 */
222 mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMSR);
223
224 /*
225 * If we already saw the link up, and it hasn't gone down, then
226 * we don't need to wait for autoneg again
227 */
228 if (phydev->link && mii_reg & BMSR_LSTATUS)
229 return 0;
230
231 if ((mii_reg & BMSR_ANEGCAPABLE) && !(mii_reg & BMSR_ANEGCOMPLETE)) {
232 int i = 0;
233
234 printf("%s Waiting for PHY auto negotiation to complete",
235 phydev->dev->name);
236 while (!(mii_reg & BMSR_ANEGCOMPLETE)) {
237 /*
238 * Timeout reached ?
239 */
240 if (i > PHY_ANEG_TIMEOUT) {
241 printf(" TIMEOUT !\n");
242 phydev->link = 0;
243 return 0;
244 }
245
246 if (ctrlc()) {
247 puts("user interrupt!\n");
248 phydev->link = 0;
249 return -EINTR;
250 }
251
252 if ((i++ % 500) == 0)
253 printf(".");
254
255 udelay(1000); /* 1 ms */
256 mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMSR);
257 }
258 printf(" done\n");
259 phydev->link = 1;
260 } else {
261 /* Read the link a second time to clear the latched state */
262 mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMSR);
263
264 if (mii_reg & BMSR_LSTATUS)
265 phydev->link = 1;
266 else
267 phydev->link = 0;
268 }
269
270 return 0;
271}
272
273/*
274 * Generic function which updates the speed and duplex. If
275 * autonegotiation is enabled, it uses the AND of the link
276 * partner's advertised capabilities and our advertised
277 * capabilities. If autonegotiation is disabled, we use the
278 * appropriate bits in the control register.
279 *
280 * Stolen from Linux's mii.c and phy_device.c
281 */
282static int genphy_parse_link(struct phy_device *phydev)
283{
284 int mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMSR);
285
286 /* We're using autonegotiation */
287 if (mii_reg & BMSR_ANEGCAPABLE) {
288 u32 lpa = 0;
289 u32 gblpa = 0;
290
291 /* Check for gigabit capability */
292 if (mii_reg & BMSR_ERCAP) {
293 /* We want a list of states supported by
294 * both PHYs in the link
295 */
296 gblpa = phy_read(phydev, MDIO_DEVAD_NONE, MII_STAT1000);
297 gblpa &= phy_read(phydev,
298 MDIO_DEVAD_NONE, MII_CTRL1000) << 2;
299 }
300
301 /* Set the baseline so we only have to set them
302 * if they're different
303 */
304 phydev->speed = SPEED_10;
305 phydev->duplex = DUPLEX_HALF;
306
307 /* Check the gigabit fields */
308 if (gblpa & (PHY_1000BTSR_1000FD | PHY_1000BTSR_1000HD)) {
309 phydev->speed = SPEED_1000;
310
311 if (gblpa & PHY_1000BTSR_1000FD)
312 phydev->duplex = DUPLEX_FULL;
313
314 /* We're done! */
315 return 0;
316 }
317
318 lpa = phy_read(phydev, MDIO_DEVAD_NONE, MII_ADVERTISE);
319 lpa &= phy_read(phydev, MDIO_DEVAD_NONE, MII_LPA);
320
Wolfgang Denk0dcfb0f2011-09-28 21:02:43 +0200321 if (lpa & (LPA_100FULL | LPA_100HALF)) {
Andy Fleming5f184712011-04-08 02:10:27 -0500322 phydev->speed = SPEED_100;
323
Wolfgang Denk0dcfb0f2011-09-28 21:02:43 +0200324 if (lpa & LPA_100FULL)
325 phydev->duplex = DUPLEX_FULL;
326
327 } else if (lpa & LPA_10FULL)
Andy Fleming5f184712011-04-08 02:10:27 -0500328 phydev->duplex = DUPLEX_FULL;
329 } else {
330 u32 bmcr = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMCR);
331
332 phydev->speed = SPEED_10;
333 phydev->duplex = DUPLEX_HALF;
334
335 if (bmcr & BMCR_FULLDPLX)
336 phydev->duplex = DUPLEX_FULL;
337
338 if (bmcr & BMCR_SPEED1000)
339 phydev->speed = SPEED_1000;
340 else if (bmcr & BMCR_SPEED100)
341 phydev->speed = SPEED_100;
342 }
343
344 return 0;
345}
346
347int genphy_config(struct phy_device *phydev)
348{
349 int val;
350 u32 features;
351
352 /* For now, I'll claim that the generic driver supports
353 * all possible port types */
354 features = (SUPPORTED_TP | SUPPORTED_MII
355 | SUPPORTED_AUI | SUPPORTED_FIBRE |
356 SUPPORTED_BNC);
357
358 /* Do we support autonegotiation? */
359 val = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMSR);
360
361 if (val < 0)
362 return val;
363
364 if (val & BMSR_ANEGCAPABLE)
365 features |= SUPPORTED_Autoneg;
366
367 if (val & BMSR_100FULL)
368 features |= SUPPORTED_100baseT_Full;
369 if (val & BMSR_100HALF)
370 features |= SUPPORTED_100baseT_Half;
371 if (val & BMSR_10FULL)
372 features |= SUPPORTED_10baseT_Full;
373 if (val & BMSR_10HALF)
374 features |= SUPPORTED_10baseT_Half;
375
376 if (val & BMSR_ESTATEN) {
377 val = phy_read(phydev, MDIO_DEVAD_NONE, MII_ESTATUS);
378
379 if (val < 0)
380 return val;
381
382 if (val & ESTATUS_1000_TFULL)
383 features |= SUPPORTED_1000baseT_Full;
384 if (val & ESTATUS_1000_THALF)
385 features |= SUPPORTED_1000baseT_Half;
386 }
387
388 phydev->supported = features;
389 phydev->advertising = features;
390
391 genphy_config_aneg(phydev);
392
393 return 0;
394}
395
396int genphy_startup(struct phy_device *phydev)
397{
398 genphy_update_link(phydev);
399 genphy_parse_link(phydev);
400
401 return 0;
402}
403
404int genphy_shutdown(struct phy_device *phydev)
405{
406 return 0;
407}
408
409static struct phy_driver genphy_driver = {
410 .uid = 0xffffffff,
411 .mask = 0xffffffff,
412 .name = "Generic PHY",
413 .features = 0,
414 .config = genphy_config,
415 .startup = genphy_startup,
416 .shutdown = genphy_shutdown,
417};
418
419static LIST_HEAD(phy_drivers);
420
421int phy_init(void)
422{
Andy Fleming9082eea2011-04-07 21:56:05 -0500423#ifdef CONFIG_PHY_ATHEROS
424 phy_atheros_init();
425#endif
426#ifdef CONFIG_PHY_BROADCOM
427 phy_broadcom_init();
428#endif
429#ifdef CONFIG_PHY_DAVICOM
430 phy_davicom_init();
431#endif
432#ifdef CONFIG_PHY_LXT
433 phy_lxt_init();
434#endif
435#ifdef CONFIG_PHY_MARVELL
436 phy_marvell_init();
437#endif
438#ifdef CONFIG_PHY_MICREL
439 phy_micrel_init();
440#endif
441#ifdef CONFIG_PHY_NATSEMI
442 phy_natsemi_init();
443#endif
444#ifdef CONFIG_PHY_REALTEK
445 phy_realtek_init();
446#endif
Nobuhiro Iwamatsu5751aa22011-11-23 21:24:15 +0000447#ifdef CONFIG_PHY_SMSC
448 phy_smsc_init();
449#endif
Andy Fleming9082eea2011-04-07 21:56:05 -0500450#ifdef CONFIG_PHY_TERANETICS
451 phy_teranetics_init();
452#endif
453#ifdef CONFIG_PHY_VITESSE
454 phy_vitesse_init();
455#endif
456
Andy Fleming5f184712011-04-08 02:10:27 -0500457 return 0;
458}
459
460int phy_register(struct phy_driver *drv)
461{
462 INIT_LIST_HEAD(&drv->list);
463 list_add_tail(&drv->list, &phy_drivers);
464
465 return 0;
466}
467
468int phy_probe(struct phy_device *phydev)
469{
470 int err = 0;
471
472 phydev->advertising = phydev->supported = phydev->drv->features;
473 phydev->mmds = phydev->drv->mmds;
474
475 if (phydev->drv->probe)
476 err = phydev->drv->probe(phydev);
477
478 return err;
479}
480
481static struct phy_driver *generic_for_interface(phy_interface_t interface)
482{
483#ifdef CONFIG_PHYLIB_10G
484 if (is_10g_interface(interface))
485 return &gen10g_driver;
486#endif
487
488 return &genphy_driver;
489}
490
491struct phy_driver *get_phy_driver(struct phy_device *phydev,
492 phy_interface_t interface)
493{
494 struct list_head *entry;
495 int phy_id = phydev->phy_id;
496 struct phy_driver *drv = NULL;
497
498 list_for_each(entry, &phy_drivers) {
499 drv = list_entry(entry, struct phy_driver, list);
500 if ((drv->uid & drv->mask) == (phy_id & drv->mask))
501 return drv;
502 }
503
504 /* If we made it here, there's no driver for this PHY */
505 return generic_for_interface(interface);
506}
507
508struct phy_device *phy_device_create(struct mii_dev *bus, int addr, int phy_id,
509 phy_interface_t interface)
510{
511 struct phy_device *dev;
512
513 /* We allocate the device, and initialize the
514 * default values */
515 dev = malloc(sizeof(*dev));
516 if (!dev) {
517 printf("Failed to allocate PHY device for %s:%d\n",
518 bus->name, addr);
519 return NULL;
520 }
521
522 memset(dev, 0, sizeof(*dev));
523
524 dev->duplex = -1;
525 dev->link = 1;
526 dev->interface = interface;
527
528 dev->autoneg = AUTONEG_ENABLE;
529
530 dev->addr = addr;
531 dev->phy_id = phy_id;
532 dev->bus = bus;
533
534 dev->drv = get_phy_driver(dev, interface);
535
536 phy_probe(dev);
537
538 bus->phymap[addr] = dev;
539
540 return dev;
541}
542
543/**
544 * get_phy_id - reads the specified addr for its ID.
545 * @bus: the target MII bus
546 * @addr: PHY address on the MII bus
547 * @phy_id: where to store the ID retrieved.
548 *
549 * Description: Reads the ID registers of the PHY at @addr on the
550 * @bus, stores it in @phy_id and returns zero on success.
551 */
552int get_phy_id(struct mii_dev *bus, int addr, int devad, u32 *phy_id)
553{
554 int phy_reg;
555
556 /* Grab the bits from PHYIR1, and put them
557 * in the upper half */
558 phy_reg = bus->read(bus, addr, devad, MII_PHYSID1);
559
560 if (phy_reg < 0)
561 return -EIO;
562
563 *phy_id = (phy_reg & 0xffff) << 16;
564
565 /* Grab the bits from PHYIR2, and put them in the lower half */
566 phy_reg = bus->read(bus, addr, devad, MII_PHYSID2);
567
568 if (phy_reg < 0)
569 return -EIO;
570
571 *phy_id |= (phy_reg & 0xffff);
572
573 return 0;
574}
575
576/**
577 * get_phy_device - reads the specified PHY device and returns its @phy_device struct
578 * @bus: the target MII bus
579 * @addr: PHY address on the MII bus
580 *
581 * Description: Reads the ID registers of the PHY at @addr on the
582 * @bus, then allocates and returns the phy_device to represent it.
583 */
584struct phy_device *get_phy_device(struct mii_dev *bus, int addr,
585 phy_interface_t interface)
586{
587 u32 phy_id = 0x1fffffff;
588 int i;
589 int r;
590
591 /* If we have one, return the existing device, with new interface */
592 if (bus->phymap[addr]) {
593 bus->phymap[addr]->interface = interface;
594
595 return bus->phymap[addr];
596 }
597
598 /* Try Standard (ie Clause 22) access */
599 r = get_phy_id(bus, addr, MDIO_DEVAD_NONE, &phy_id);
600 if (r)
601 return NULL;
602
603 /* If the PHY ID is mostly f's, we didn't find anything */
604 if ((phy_id & 0x1fffffff) != 0x1fffffff)
605 return phy_device_create(bus, addr, phy_id, interface);
606
607 /* Otherwise we have to try Clause 45 */
608 for (i = 1; i < 5; i++) {
609 r = get_phy_id(bus, addr, i, &phy_id);
610 if (r)
611 return NULL;
612
613 /* If the phy_id is mostly Fs, there is no device there */
614 if ((phy_id & 0x1fffffff) != 0x1fffffff)
615 break;
616 }
617
618 return phy_device_create(bus, addr, phy_id, interface);
619}
620
621int phy_reset(struct phy_device *phydev)
622{
623 int reg;
624 int timeout = 500;
625 int devad = MDIO_DEVAD_NONE;
626
627#ifdef CONFIG_PHYLIB_10G
628 /* If it's 10G, we need to issue reset through one of the MMDs */
629 if (is_10g_interface(phydev->interface)) {
630 if (!phydev->mmds)
631 gen10g_discover_mmds(phydev);
632
633 devad = ffs(phydev->mmds) - 1;
634 }
635#endif
636
637 reg = phy_read(phydev, devad, MII_BMCR);
638 if (reg < 0) {
639 debug("PHY status read failed\n");
640 return -1;
641 }
642
643 reg |= BMCR_RESET;
644
645 if (phy_write(phydev, devad, MII_BMCR, reg) < 0) {
646 debug("PHY reset failed\n");
647 return -1;
648 }
649
650#ifdef CONFIG_PHY_RESET_DELAY
651 udelay(CONFIG_PHY_RESET_DELAY); /* Intel LXT971A needs this */
652#endif
653 /*
654 * Poll the control register for the reset bit to go to 0 (it is
655 * auto-clearing). This should happen within 0.5 seconds per the
656 * IEEE spec.
657 */
658 while ((reg & BMCR_RESET) && timeout--) {
659 reg = phy_read(phydev, devad, MII_BMCR);
660
661 if (reg < 0) {
662 debug("PHY status read failed\n");
663 return -1;
664 }
665 udelay(1000);
666 }
667
668 if (reg & BMCR_RESET) {
669 puts("PHY reset timed out\n");
670 return -1;
671 }
672
673 return 0;
674}
675
676int miiphy_reset(const char *devname, unsigned char addr)
677{
678 struct mii_dev *bus = miiphy_get_dev_by_name(devname);
679 struct phy_device *phydev;
680
681 /*
682 * miiphy_reset was only used on standard PHYs, so we'll fake it here.
683 * If later code tries to connect with the right interface, this will
684 * be corrected by get_phy_device in phy_connect()
685 */
686 phydev = get_phy_device(bus, addr, PHY_INTERFACE_MODE_MII);
687
688 return phy_reset(phydev);
689}
690
691struct phy_device *phy_connect(struct mii_dev *bus, int addr,
692 struct eth_device *dev,
693 phy_interface_t interface)
694{
695 struct phy_device *phydev;
696
697 /* Reset the bus */
Vladimir Zapolskiye3a77212011-09-05 07:24:07 +0000698 if (bus->reset)
699 bus->reset(bus);
Andy Fleming5f184712011-04-08 02:10:27 -0500700
701 /* Wait 15ms to make sure the PHY has come out of hard reset */
702 udelay(15000);
703
704 phydev = get_phy_device(bus, addr, interface);
705
706 if (!phydev) {
707 printf("Could not get PHY for %s:%d\n", bus->name, addr);
708
709 return NULL;
710 }
711
712 /* Soft Reset the PHY */
713 phy_reset(phydev);
714
715 if (phydev->dev)
716 printf("%s:%d is connected to %s. Reconnecting to %s\n",
717 bus->name, addr, phydev->dev->name, dev->name);
718
719 phydev->dev = dev;
720
Wolfgang Denkb91a9d92011-07-24 21:39:10 +0000721 debug("%s connected to %s\n", dev->name, phydev->drv->name);
Andy Fleming5f184712011-04-08 02:10:27 -0500722
723 return phydev;
724}
725
Timur Tabi6e5b9ac2012-07-05 10:33:18 +0000726/*
727 * Start the PHY. Returns 0 on success, or a negative error code.
728 */
Andy Fleming5f184712011-04-08 02:10:27 -0500729int phy_startup(struct phy_device *phydev)
730{
731 if (phydev->drv->startup)
Timur Tabi6e5b9ac2012-07-05 10:33:18 +0000732 return phydev->drv->startup(phydev);
Andy Fleming5f184712011-04-08 02:10:27 -0500733
734 return 0;
735}
736
737static int __board_phy_config(struct phy_device *phydev)
738{
Troy Kisky9fafe7d2012-02-07 14:08:49 +0000739 if (phydev->drv->config)
740 return phydev->drv->config(phydev);
Andy Fleming5f184712011-04-08 02:10:27 -0500741 return 0;
742}
743
744int board_phy_config(struct phy_device *phydev)
745 __attribute__((weak, alias("__board_phy_config")));
746
747int phy_config(struct phy_device *phydev)
748{
Andy Fleming5f184712011-04-08 02:10:27 -0500749 /* Invoke an optional board-specific helper */
750 board_phy_config(phydev);
751
752 return 0;
753}
754
755int phy_shutdown(struct phy_device *phydev)
756{
757 if (phydev->drv->shutdown)
758 phydev->drv->shutdown(phydev);
759
760 return 0;
761}