blob: 69acb694606193adfc3aeb6559d0df5c8427c639 [file] [log] [blame]
Tom Rini10e47792018-05-06 17:58:06 -04001// SPDX-License-Identifier: GPL-2.0+
Andy Flemingaecf6fc2011-04-08 02:10:27 -05002/*
3 * Generic PHY Management code
4 *
Andy Flemingaecf6fc2011-04-08 02:10:27 -05005 * Copyright 2011 Freescale Semiconductor, Inc.
6 * author Andy Fleming
7 *
8 * Based loosely off of Linux's PHY Lib
9 */
Andy Flemingaecf6fc2011-04-08 02:10:27 -050010#include <common.h>
Simon Glassa73bda42015-11-08 23:47:45 -070011#include <console.h>
Simon Glassdbad3462015-04-05 16:07:39 -060012#include <dm.h>
Simon Glass0f2af882020-05-10 11:40:05 -060013#include <log.h>
Andy Flemingaecf6fc2011-04-08 02:10:27 -050014#include <malloc.h>
15#include <net.h>
16#include <command.h>
17#include <miiphy.h>
18#include <phy.h>
19#include <errno.h>
Simon Glass3ba929a2020-10-30 21:38:53 -060020#include <asm/global_data.h>
Bin Mengb34ef722021-03-14 20:14:52 +080021#include <dm/of_extra.h>
Simon Glass4dcacfc2020-05-10 11:40:13 -060022#include <linux/bitops.h>
Simon Glassdbd79542020-05-10 11:40:11 -060023#include <linux/delay.h>
Troy Kisky9519bc52012-10-22 16:40:43 +000024#include <linux/err.h>
Shengzhou Liufcfc7862014-04-11 16:14:17 +080025#include <linux/compiler.h>
Andy Flemingaecf6fc2011-04-08 02:10:27 -050026
Michal Simek5f676312015-05-13 13:40:40 +020027DECLARE_GLOBAL_DATA_PTR;
28
Andy Flemingaecf6fc2011-04-08 02:10:27 -050029/* Generic PHY support and helper functions */
30
31/**
Mario Six77577432018-01-15 11:08:27 +010032 * genphy_config_advert - sanitize and advertise auto-negotiation parameters
Andy Flemingaecf6fc2011-04-08 02:10:27 -050033 * @phydev: target phy_device struct
34 *
35 * Description: Writes MII_ADVERTISE with the appropriate values,
36 * after sanitizing the values to make sure we only advertise
37 * what is supported. Returns < 0 on error, 0 if the PHY's advertisement
38 * hasn't changed, and > 0 if it has changed.
39 */
Kim Phillips914b0782012-10-29 13:34:34 +000040static int genphy_config_advert(struct phy_device *phydev)
Andy Flemingaecf6fc2011-04-08 02:10:27 -050041{
42 u32 advertise;
Florian Fainelli6c8be842016-01-13 16:59:31 +030043 int oldadv, adv, bmsr;
Andy Flemingaecf6fc2011-04-08 02:10:27 -050044 int err, changed = 0;
45
Florian Fainelli6c8be842016-01-13 16:59:31 +030046 /* Only allow advertising what this PHY supports */
Andy Flemingaecf6fc2011-04-08 02:10:27 -050047 phydev->advertising &= phydev->supported;
48 advertise = phydev->advertising;
49
50 /* Setup standard advertisement */
Florian Fainelli6c8be842016-01-13 16:59:31 +030051 adv = phy_read(phydev, MDIO_DEVAD_NONE, MII_ADVERTISE);
52 oldadv = adv;
Andy Flemingaecf6fc2011-04-08 02:10:27 -050053
54 if (adv < 0)
55 return adv;
56
57 adv &= ~(ADVERTISE_ALL | ADVERTISE_100BASE4 | ADVERTISE_PAUSE_CAP |
58 ADVERTISE_PAUSE_ASYM);
59 if (advertise & ADVERTISED_10baseT_Half)
60 adv |= ADVERTISE_10HALF;
61 if (advertise & ADVERTISED_10baseT_Full)
62 adv |= ADVERTISE_10FULL;
63 if (advertise & ADVERTISED_100baseT_Half)
64 adv |= ADVERTISE_100HALF;
65 if (advertise & ADVERTISED_100baseT_Full)
66 adv |= ADVERTISE_100FULL;
67 if (advertise & ADVERTISED_Pause)
68 adv |= ADVERTISE_PAUSE_CAP;
69 if (advertise & ADVERTISED_Asym_Pause)
70 adv |= ADVERTISE_PAUSE_ASYM;
Charles Coldwell23329412013-02-21 08:25:52 -050071 if (advertise & ADVERTISED_1000baseX_Half)
72 adv |= ADVERTISE_1000XHALF;
73 if (advertise & ADVERTISED_1000baseX_Full)
74 adv |= ADVERTISE_1000XFULL;
Andy Flemingaecf6fc2011-04-08 02:10:27 -050075
76 if (adv != oldadv) {
77 err = phy_write(phydev, MDIO_DEVAD_NONE, MII_ADVERTISE, adv);
78
79 if (err < 0)
80 return err;
81 changed = 1;
82 }
83
Florian Fainelli6c8be842016-01-13 16:59:31 +030084 bmsr = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMSR);
85 if (bmsr < 0)
86 return bmsr;
87
88 /* Per 802.3-2008, Section 22.2.4.2.16 Extended status all
89 * 1000Mbits/sec capable PHYs shall have the BMSR_ESTATEN bit set to a
90 * logical 1.
91 */
92 if (!(bmsr & BMSR_ESTATEN))
93 return changed;
94
Andy Flemingaecf6fc2011-04-08 02:10:27 -050095 /* Configure gigabit if it's supported */
Florian Fainelli6c8be842016-01-13 16:59:31 +030096 adv = phy_read(phydev, MDIO_DEVAD_NONE, MII_CTRL1000);
97 oldadv = adv;
98
99 if (adv < 0)
100 return adv;
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500101
Florian Fainelli6c8be842016-01-13 16:59:31 +0300102 adv &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF);
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500103
Florian Fainelli6c8be842016-01-13 16:59:31 +0300104 if (phydev->supported & (SUPPORTED_1000baseT_Half |
105 SUPPORTED_1000baseT_Full)) {
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500106 if (advertise & SUPPORTED_1000baseT_Half)
107 adv |= ADVERTISE_1000HALF;
108 if (advertise & SUPPORTED_1000baseT_Full)
109 adv |= ADVERTISE_1000FULL;
Florian Fainelli6c8be842016-01-13 16:59:31 +0300110 }
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500111
Florian Fainelli6c8be842016-01-13 16:59:31 +0300112 if (adv != oldadv)
113 changed = 1;
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500114
Florian Fainelli6c8be842016-01-13 16:59:31 +0300115 err = phy_write(phydev, MDIO_DEVAD_NONE, MII_CTRL1000, adv);
116 if (err < 0)
117 return err;
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500118
119 return changed;
120}
121
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500122/**
123 * genphy_setup_forced - configures/forces speed/duplex from @phydev
124 * @phydev: target phy_device struct
125 *
126 * Description: Configures MII_BMCR to force speed/duplex
127 * to the values in phydev. Assumes that the values are valid.
128 */
Kim Phillips914b0782012-10-29 13:34:34 +0000129static int genphy_setup_forced(struct phy_device *phydev)
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500130{
131 int err;
Alexandre Messier103a8c42016-01-22 14:16:15 -0500132 int ctl = BMCR_ANRESTART;
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500133
Mario Six77577432018-01-15 11:08:27 +0100134 phydev->pause = 0;
135 phydev->asym_pause = 0;
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500136
Mario Six77577432018-01-15 11:08:27 +0100137 if (phydev->speed == SPEED_1000)
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500138 ctl |= BMCR_SPEED1000;
Mario Six77577432018-01-15 11:08:27 +0100139 else if (phydev->speed == SPEED_100)
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500140 ctl |= BMCR_SPEED100;
141
Mario Six77577432018-01-15 11:08:27 +0100142 if (phydev->duplex == DUPLEX_FULL)
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500143 ctl |= BMCR_FULLDPLX;
144
145 err = phy_write(phydev, MDIO_DEVAD_NONE, MII_BMCR, ctl);
146
147 return err;
148}
149
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500150/**
151 * genphy_restart_aneg - Enable and Restart Autonegotiation
152 * @phydev: target phy_device struct
153 */
154int genphy_restart_aneg(struct phy_device *phydev)
155{
156 int ctl;
157
158 ctl = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMCR);
159
160 if (ctl < 0)
161 return ctl;
162
163 ctl |= (BMCR_ANENABLE | BMCR_ANRESTART);
164
165 /* Don't isolate the PHY if we're negotiating */
166 ctl &= ~(BMCR_ISOLATE);
167
168 ctl = phy_write(phydev, MDIO_DEVAD_NONE, MII_BMCR, ctl);
169
170 return ctl;
171}
172
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500173/**
174 * genphy_config_aneg - restart auto-negotiation or write BMCR
175 * @phydev: target phy_device struct
176 *
177 * Description: If auto-negotiation is enabled, we configure the
178 * advertising, and then restart auto-negotiation. If it is not
179 * enabled, then we write the BMCR.
180 */
181int genphy_config_aneg(struct phy_device *phydev)
182{
183 int result;
184
Mario Six77577432018-01-15 11:08:27 +0100185 if (phydev->autoneg != AUTONEG_ENABLE)
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500186 return genphy_setup_forced(phydev);
187
188 result = genphy_config_advert(phydev);
189
190 if (result < 0) /* error */
191 return result;
192
193 if (result == 0) {
Mario Six77577432018-01-15 11:08:27 +0100194 /*
195 * Advertisment hasn't changed, but maybe aneg was never on to
196 * begin with? Or maybe phy was isolated?
197 */
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500198 int ctl = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMCR);
199
200 if (ctl < 0)
201 return ctl;
202
203 if (!(ctl & BMCR_ANENABLE) || (ctl & BMCR_ISOLATE))
204 result = 1; /* do restart aneg */
205 }
206
Mario Six77577432018-01-15 11:08:27 +0100207 /*
208 * Only restart aneg if we are advertising something different
209 * than we were before.
210 */
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500211 if (result > 0)
212 result = genphy_restart_aneg(phydev);
213
214 return result;
215}
216
217/**
218 * genphy_update_link - update link status in @phydev
219 * @phydev: target phy_device struct
220 *
221 * Description: Update the value in phydev->link to reflect the
222 * current link value. In order to do this, we need to read
223 * the status register twice, keeping the second value.
224 */
225int genphy_update_link(struct phy_device *phydev)
226{
227 unsigned int mii_reg;
228
229 /*
230 * Wait if the link is up, and autonegotiation is in progress
231 * (ie - we're capable and it's not done)
232 */
233 mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMSR);
234
235 /*
236 * If we already saw the link up, and it hasn't gone down, then
237 * we don't need to wait for autoneg again
238 */
239 if (phydev->link && mii_reg & BMSR_LSTATUS)
240 return 0;
241
Alexandre Messier010c5ec2016-01-22 14:16:56 -0500242 if ((phydev->autoneg == AUTONEG_ENABLE) &&
243 !(mii_reg & BMSR_ANEGCOMPLETE)) {
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500244 int i = 0;
245
246 printf("%s Waiting for PHY auto negotiation to complete",
Mario Six77577432018-01-15 11:08:27 +0100247 phydev->dev->name);
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500248 while (!(mii_reg & BMSR_ANEGCOMPLETE)) {
249 /*
250 * Timeout reached ?
251 */
Andre Przywara71a6a602020-01-03 22:08:47 +0000252 if (i > (PHY_ANEG_TIMEOUT / 50)) {
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500253 printf(" TIMEOUT !\n");
254 phydev->link = 0;
Michal Simekcf6677b2016-05-18 12:48:57 +0200255 return -ETIMEDOUT;
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500256 }
257
258 if (ctrlc()) {
259 puts("user interrupt!\n");
260 phydev->link = 0;
261 return -EINTR;
262 }
263
Stefan Roese5cf96d12019-09-30 10:26:42 +0200264 if ((i++ % 10) == 0)
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500265 printf(".");
266
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500267 mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMSR);
Stefan Roese5cf96d12019-09-30 10:26:42 +0200268 mdelay(50); /* 50 ms */
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500269 }
270 printf(" done\n");
271 phydev->link = 1;
272 } else {
273 /* Read the link a second time to clear the latched state */
274 mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMSR);
275
276 if (mii_reg & BMSR_LSTATUS)
277 phydev->link = 1;
278 else
279 phydev->link = 0;
280 }
281
282 return 0;
283}
284
285/*
286 * Generic function which updates the speed and duplex. If
287 * autonegotiation is enabled, it uses the AND of the link
288 * partner's advertised capabilities and our advertised
289 * capabilities. If autonegotiation is disabled, we use the
290 * appropriate bits in the control register.
291 *
292 * Stolen from Linux's mii.c and phy_device.c
293 */
Yegor Yefremovc40f5d32012-11-28 11:15:17 +0100294int genphy_parse_link(struct phy_device *phydev)
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500295{
296 int mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMSR);
297
298 /* We're using autonegotiation */
Alexandre Messier010c5ec2016-01-22 14:16:56 -0500299 if (phydev->autoneg == AUTONEG_ENABLE) {
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500300 u32 lpa = 0;
Heiko Schocher94c35022013-07-23 15:32:36 +0200301 int gblpa = 0;
Charles Coldwell23329412013-02-21 08:25:52 -0500302 u32 estatus = 0;
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500303
304 /* Check for gigabit capability */
David Duecked454232013-11-05 17:23:02 +0100305 if (phydev->supported & (SUPPORTED_1000baseT_Full |
306 SUPPORTED_1000baseT_Half)) {
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500307 /* We want a list of states supported by
308 * both PHYs in the link
309 */
310 gblpa = phy_read(phydev, MDIO_DEVAD_NONE, MII_STAT1000);
Heiko Schocher94c35022013-07-23 15:32:36 +0200311 if (gblpa < 0) {
Mario Six77577432018-01-15 11:08:27 +0100312 debug("Could not read MII_STAT1000. ");
313 debug("Ignoring gigabit capability\n");
Heiko Schocher94c35022013-07-23 15:32:36 +0200314 gblpa = 0;
315 }
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500316 gblpa &= phy_read(phydev,
317 MDIO_DEVAD_NONE, MII_CTRL1000) << 2;
318 }
319
320 /* Set the baseline so we only have to set them
321 * if they're different
322 */
323 phydev->speed = SPEED_10;
324 phydev->duplex = DUPLEX_HALF;
325
326 /* Check the gigabit fields */
327 if (gblpa & (PHY_1000BTSR_1000FD | PHY_1000BTSR_1000HD)) {
328 phydev->speed = SPEED_1000;
329
330 if (gblpa & PHY_1000BTSR_1000FD)
331 phydev->duplex = DUPLEX_FULL;
332
333 /* We're done! */
334 return 0;
335 }
336
337 lpa = phy_read(phydev, MDIO_DEVAD_NONE, MII_ADVERTISE);
338 lpa &= phy_read(phydev, MDIO_DEVAD_NONE, MII_LPA);
339
Wolfgang Denka7b06ce2011-09-28 21:02:43 +0200340 if (lpa & (LPA_100FULL | LPA_100HALF)) {
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500341 phydev->speed = SPEED_100;
342
Wolfgang Denka7b06ce2011-09-28 21:02:43 +0200343 if (lpa & LPA_100FULL)
344 phydev->duplex = DUPLEX_FULL;
345
Mario Six77577432018-01-15 11:08:27 +0100346 } else if (lpa & LPA_10FULL) {
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500347 phydev->duplex = DUPLEX_FULL;
Mario Six77577432018-01-15 11:08:27 +0100348 }
Charles Coldwell23329412013-02-21 08:25:52 -0500349
Sascha Silbe2ac8d302013-07-19 12:25:10 +0200350 /*
351 * Extended status may indicate that the PHY supports
352 * 1000BASE-T/X even though the 1000BASE-T registers
353 * are missing. In this case we can't tell whether the
354 * peer also supports it, so we only check extended
355 * status if the 1000BASE-T registers are actually
356 * missing.
357 */
358 if ((mii_reg & BMSR_ESTATEN) && !(mii_reg & BMSR_ERCAP))
Charles Coldwell23329412013-02-21 08:25:52 -0500359 estatus = phy_read(phydev, MDIO_DEVAD_NONE,
360 MII_ESTATUS);
361
362 if (estatus & (ESTATUS_1000_XFULL | ESTATUS_1000_XHALF |
363 ESTATUS_1000_TFULL | ESTATUS_1000_THALF)) {
364 phydev->speed = SPEED_1000;
365 if (estatus & (ESTATUS_1000_XFULL | ESTATUS_1000_TFULL))
366 phydev->duplex = DUPLEX_FULL;
367 }
368
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500369 } else {
370 u32 bmcr = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMCR);
371
372 phydev->speed = SPEED_10;
373 phydev->duplex = DUPLEX_HALF;
374
375 if (bmcr & BMCR_FULLDPLX)
376 phydev->duplex = DUPLEX_FULL;
377
378 if (bmcr & BMCR_SPEED1000)
379 phydev->speed = SPEED_1000;
380 else if (bmcr & BMCR_SPEED100)
381 phydev->speed = SPEED_100;
382 }
383
384 return 0;
385}
386
387int genphy_config(struct phy_device *phydev)
388{
389 int val;
390 u32 features;
391
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500392 features = (SUPPORTED_TP | SUPPORTED_MII
393 | SUPPORTED_AUI | SUPPORTED_FIBRE |
394 SUPPORTED_BNC);
395
396 /* Do we support autonegotiation? */
397 val = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMSR);
398
399 if (val < 0)
400 return val;
401
402 if (val & BMSR_ANEGCAPABLE)
403 features |= SUPPORTED_Autoneg;
404
405 if (val & BMSR_100FULL)
406 features |= SUPPORTED_100baseT_Full;
407 if (val & BMSR_100HALF)
408 features |= SUPPORTED_100baseT_Half;
409 if (val & BMSR_10FULL)
410 features |= SUPPORTED_10baseT_Full;
411 if (val & BMSR_10HALF)
412 features |= SUPPORTED_10baseT_Half;
413
414 if (val & BMSR_ESTATEN) {
415 val = phy_read(phydev, MDIO_DEVAD_NONE, MII_ESTATUS);
416
417 if (val < 0)
418 return val;
419
420 if (val & ESTATUS_1000_TFULL)
421 features |= SUPPORTED_1000baseT_Full;
422 if (val & ESTATUS_1000_THALF)
423 features |= SUPPORTED_1000baseT_Half;
Charles Coldwell23329412013-02-21 08:25:52 -0500424 if (val & ESTATUS_1000_XFULL)
425 features |= SUPPORTED_1000baseX_Full;
426 if (val & ESTATUS_1000_XHALF)
Fabio Estevam45d601e2013-07-19 10:01:34 -0300427 features |= SUPPORTED_1000baseX_Half;
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500428 }
429
Sascha Hauer6cc1e7d2016-01-13 16:59:32 +0300430 phydev->supported &= features;
431 phydev->advertising &= features;
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500432
433 genphy_config_aneg(phydev);
434
435 return 0;
436}
437
438int genphy_startup(struct phy_device *phydev)
439{
Michal Simek5ff89662016-05-18 12:46:12 +0200440 int ret;
441
442 ret = genphy_update_link(phydev);
443 if (ret)
444 return ret;
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500445
Michal Simek5ff89662016-05-18 12:46:12 +0200446 return genphy_parse_link(phydev);
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500447}
448
449int genphy_shutdown(struct phy_device *phydev)
450{
451 return 0;
452}
453
454static struct phy_driver genphy_driver = {
455 .uid = 0xffffffff,
456 .mask = 0xffffffff,
457 .name = "Generic PHY",
Sascha Hauer6cc1e7d2016-01-13 16:59:32 +0300458 .features = PHY_GBIT_FEATURES | SUPPORTED_MII |
459 SUPPORTED_AUI | SUPPORTED_FIBRE |
460 SUPPORTED_BNC,
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500461 .config = genphy_config,
462 .startup = genphy_startup,
463 .shutdown = genphy_shutdown,
464};
465
Siva Durga Prasad Paladugu1daad9e2019-03-15 17:46:47 +0530466int genphy_init(void)
467{
468 return phy_register(&genphy_driver);
469}
470
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500471static LIST_HEAD(phy_drivers);
472
473int phy_init(void)
474{
Siva Durga Prasad Paladuguf1137542019-03-04 16:01:30 +0100475#ifdef CONFIG_NEEDS_MANUAL_RELOC
476 /*
477 * The pointers inside phy_drivers also needs to be updated incase of
478 * manual reloc, without which these points to some invalid
479 * pre reloc address and leads to invalid accesses, hangs.
480 */
481 struct list_head *head = &phy_drivers;
482
483 head->next = (void *)head->next + gd->reloc_off;
484 head->prev = (void *)head->prev + gd->reloc_off;
485#endif
486
Florian Fainelli01b4ade2017-12-09 14:59:54 -0800487#ifdef CONFIG_B53_SWITCH
488 phy_b53_init();
489#endif
Kevin Smith87b2c4e2016-03-31 19:33:12 +0000490#ifdef CONFIG_MV88E61XX_SWITCH
491 phy_mv88e61xx_init();
492#endif
Shaohui Xie0e548d72014-12-30 18:32:04 +0800493#ifdef CONFIG_PHY_AQUANTIA
494 phy_aquantia_init();
495#endif
Andy Fleming60ca78b2011-04-07 21:56:05 -0500496#ifdef CONFIG_PHY_ATHEROS
497 phy_atheros_init();
498#endif
499#ifdef CONFIG_PHY_BROADCOM
500 phy_broadcom_init();
501#endif
Shengzhou Liuc878bdb2014-11-10 18:32:29 +0800502#ifdef CONFIG_PHY_CORTINA
503 phy_cortina_init();
504#endif
Abbie Chang556872f2021-01-14 13:34:12 -0800505#ifdef CONFIG_PHY_CORTINA_ACCESS
506 phy_cortina_access_init();
507#endif
Andy Fleming60ca78b2011-04-07 21:56:05 -0500508#ifdef CONFIG_PHY_DAVICOM
509 phy_davicom_init();
510#endif
Matt Porter3bbeb792013-03-20 05:38:13 +0000511#ifdef CONFIG_PHY_ET1011C
512 phy_et1011c_init();
513#endif
Andy Fleming60ca78b2011-04-07 21:56:05 -0500514#ifdef CONFIG_PHY_LXT
515 phy_lxt_init();
516#endif
517#ifdef CONFIG_PHY_MARVELL
518 phy_marvell_init();
519#endif
Alexandru Gagniuc757bb672017-07-07 11:36:57 -0700520#ifdef CONFIG_PHY_MICREL_KSZ8XXX
521 phy_micrel_ksz8xxx_init();
522#endif
523#ifdef CONFIG_PHY_MICREL_KSZ90X1
524 phy_micrel_ksz90x1_init();
Andy Fleming60ca78b2011-04-07 21:56:05 -0500525#endif
Neil Armstrong7a4c90d2017-10-18 10:02:10 +0200526#ifdef CONFIG_PHY_MESON_GXL
527 phy_meson_gxl_init();
528#endif
Andy Fleming60ca78b2011-04-07 21:56:05 -0500529#ifdef CONFIG_PHY_NATSEMI
530 phy_natsemi_init();
531#endif
Radu Pirea (NXP OSS)f2d36cb2021-06-18 21:58:30 +0300532#ifdef CONFIG_NXP_C45_TJA11XX_PHY
533 phy_nxp_tja11xx_init();
534#endif
Andy Fleming60ca78b2011-04-07 21:56:05 -0500535#ifdef CONFIG_PHY_REALTEK
536 phy_realtek_init();
537#endif
Nobuhiro Iwamatsu61134dc2011-11-23 21:24:15 +0000538#ifdef CONFIG_PHY_SMSC
539 phy_smsc_init();
540#endif
Andy Fleming60ca78b2011-04-07 21:56:05 -0500541#ifdef CONFIG_PHY_TERANETICS
542 phy_teranetics_init();
543#endif
Edgar E. Iglesias8d3ce682015-09-25 23:46:08 -0700544#ifdef CONFIG_PHY_TI
545 phy_ti_init();
546#endif
Andy Fleming60ca78b2011-04-07 21:56:05 -0500547#ifdef CONFIG_PHY_VITESSE
548 phy_vitesse_init();
549#endif
Siva Durga Prasad Paladugudd6cbd32016-02-05 13:22:10 +0530550#ifdef CONFIG_PHY_XILINX
551 phy_xilinx_init();
552#endif
John Haechtenee253f92016-12-09 22:15:17 +0000553#ifdef CONFIG_PHY_MSCC
554 phy_mscc_init();
555#endif
Hannes Schmelzerda494602017-03-23 15:11:43 +0100556#ifdef CONFIG_PHY_FIXED
557 phy_fixed_init();
558#endif
Samuel Mendoza-Jonasb069c4a2019-06-18 11:37:18 +1000559#ifdef CONFIG_PHY_NCSI
560 phy_ncsi_init();
561#endif
Siva Durga Prasad Paladugud5c4e1e2018-11-27 11:49:11 +0530562#ifdef CONFIG_PHY_XILINX_GMII2RGMII
563 phy_xilinx_gmii2rgmii_init();
564#endif
Siva Durga Prasad Paladugu1daad9e2019-03-15 17:46:47 +0530565 genphy_init();
566
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500567 return 0;
568}
569
570int phy_register(struct phy_driver *drv)
571{
572 INIT_LIST_HEAD(&drv->list);
573 list_add_tail(&drv->list, &phy_drivers);
574
Michal Simek5f676312015-05-13 13:40:40 +0200575#ifdef CONFIG_NEEDS_MANUAL_RELOC
576 if (drv->probe)
577 drv->probe += gd->reloc_off;
578 if (drv->config)
579 drv->config += gd->reloc_off;
580 if (drv->startup)
581 drv->startup += gd->reloc_off;
582 if (drv->shutdown)
583 drv->shutdown += gd->reloc_off;
584 if (drv->readext)
585 drv->readext += gd->reloc_off;
586 if (drv->writeext)
587 drv->writeext += gd->reloc_off;
Carlo Caione4de87e22019-02-08 17:25:06 +0000588 if (drv->read_mmd)
589 drv->read_mmd += gd->reloc_off;
590 if (drv->write_mmd)
591 drv->write_mmd += gd->reloc_off;
Michal Simek5f676312015-05-13 13:40:40 +0200592#endif
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500593 return 0;
594}
595
Alexey Brodkine476bb22016-01-13 16:59:34 +0300596int phy_set_supported(struct phy_device *phydev, u32 max_speed)
597{
598 /* The default values for phydev->supported are provided by the PHY
599 * driver "features" member, we want to reset to sane defaults first
600 * before supporting higher speeds.
601 */
602 phydev->supported &= PHY_DEFAULT_FEATURES;
603
604 switch (max_speed) {
605 default:
606 return -ENOTSUPP;
607 case SPEED_1000:
608 phydev->supported |= PHY_1000BT_FEATURES;
609 /* fall through */
610 case SPEED_100:
611 phydev->supported |= PHY_100BT_FEATURES;
612 /* fall through */
613 case SPEED_10:
614 phydev->supported |= PHY_10BT_FEATURES;
615 }
616
617 return 0;
618}
619
Kim Phillips914b0782012-10-29 13:34:34 +0000620static int phy_probe(struct phy_device *phydev)
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500621{
622 int err = 0;
623
Mario Six77577432018-01-15 11:08:27 +0100624 phydev->advertising = phydev->drv->features;
625 phydev->supported = phydev->drv->features;
626
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500627 phydev->mmds = phydev->drv->mmds;
628
629 if (phydev->drv->probe)
630 err = phydev->drv->probe(phydev);
631
632 return err;
633}
634
635static struct phy_driver *generic_for_interface(phy_interface_t interface)
636{
637#ifdef CONFIG_PHYLIB_10G
638 if (is_10g_interface(interface))
639 return &gen10g_driver;
640#endif
641
642 return &genphy_driver;
643}
644
Kim Phillips914b0782012-10-29 13:34:34 +0000645static struct phy_driver *get_phy_driver(struct phy_device *phydev,
Mario Six77577432018-01-15 11:08:27 +0100646 phy_interface_t interface)
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500647{
648 struct list_head *entry;
649 int phy_id = phydev->phy_id;
650 struct phy_driver *drv = NULL;
651
652 list_for_each(entry, &phy_drivers) {
653 drv = list_entry(entry, struct phy_driver, list);
654 if ((drv->uid & drv->mask) == (phy_id & drv->mask))
655 return drv;
656 }
657
658 /* If we made it here, there's no driver for this PHY */
659 return generic_for_interface(interface);
660}
661
Kim Phillips914b0782012-10-29 13:34:34 +0000662static struct phy_device *phy_device_create(struct mii_dev *bus, int addr,
Pankaj Bansal3c43a482018-11-16 06:26:18 +0000663 u32 phy_id, bool is_c45,
Kim Phillips914b0782012-10-29 13:34:34 +0000664 phy_interface_t interface)
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500665{
666 struct phy_device *dev;
667
Mario Six77577432018-01-15 11:08:27 +0100668 /*
669 * We allocate the device, and initialize the
670 * default values
671 */
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500672 dev = malloc(sizeof(*dev));
673 if (!dev) {
674 printf("Failed to allocate PHY device for %s:%d\n",
Vladimir Olteanfb73b122020-07-16 18:09:08 +0800675 bus ? bus->name : "(null bus)", addr);
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500676 return NULL;
677 }
678
679 memset(dev, 0, sizeof(*dev));
680
681 dev->duplex = -1;
Mugunthan V Nbbc97ba2015-09-03 15:50:21 +0530682 dev->link = 0;
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500683 dev->interface = interface;
684
Grygorii Strashko6189c062018-07-05 12:02:48 -0500685#ifdef CONFIG_DM_ETH
686 dev->node = ofnode_null();
687#endif
688
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500689 dev->autoneg = AUTONEG_ENABLE;
690
691 dev->addr = addr;
692 dev->phy_id = phy_id;
Pankaj Bansal3c43a482018-11-16 06:26:18 +0000693 dev->is_c45 = is_c45;
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500694 dev->bus = bus;
695
696 dev->drv = get_phy_driver(dev, interface);
697
Siva Durga Prasad Paladugua7228482019-03-04 16:02:11 +0100698 if (phy_probe(dev)) {
699 printf("%s, PHY probe failed\n", __func__);
700 return NULL;
701 }
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500702
Vladimir Olteanfb73b122020-07-16 18:09:08 +0800703 if (addr >= 0 && addr < PHY_MAX_ADDR && phy_id != PHY_FIXED_ID)
Michal Simek02a99d72018-12-19 16:57:38 +0100704 bus->phymap[addr] = dev;
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500705
706 return dev;
707}
708
709/**
710 * get_phy_id - reads the specified addr for its ID.
711 * @bus: the target MII bus
712 * @addr: PHY address on the MII bus
713 * @phy_id: where to store the ID retrieved.
714 *
715 * Description: Reads the ID registers of the PHY at @addr on the
716 * @bus, stores it in @phy_id and returns zero on success.
717 */
Shengzhou Liu072b0fa2015-04-07 18:46:32 +0800718int __weak get_phy_id(struct mii_dev *bus, int addr, int devad, u32 *phy_id)
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500719{
720 int phy_reg;
721
Mario Six77577432018-01-15 11:08:27 +0100722 /*
723 * Grab the bits from PHYIR1, and put them
724 * in the upper half
725 */
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500726 phy_reg = bus->read(bus, addr, devad, MII_PHYSID1);
727
728 if (phy_reg < 0)
729 return -EIO;
730
731 *phy_id = (phy_reg & 0xffff) << 16;
732
733 /* Grab the bits from PHYIR2, and put them in the lower half */
734 phy_reg = bus->read(bus, addr, devad, MII_PHYSID2);
735
736 if (phy_reg < 0)
737 return -EIO;
738
739 *phy_id |= (phy_reg & 0xffff);
740
741 return 0;
742}
743
Troy Kisky9519bc52012-10-22 16:40:43 +0000744static struct phy_device *create_phy_by_mask(struct mii_dev *bus,
Mario Six77577432018-01-15 11:08:27 +0100745 uint phy_mask, int devad,
746 phy_interface_t interface)
Troy Kisky9519bc52012-10-22 16:40:43 +0000747{
748 u32 phy_id = 0xffffffff;
Pankaj Bansal3c43a482018-11-16 06:26:18 +0000749 bool is_c45;
Mario Six77577432018-01-15 11:08:27 +0100750
Troy Kisky9519bc52012-10-22 16:40:43 +0000751 while (phy_mask) {
752 int addr = ffs(phy_mask) - 1;
753 int r = get_phy_id(bus, addr, devad, &phy_id);
Alex Marginean920fe672019-07-05 12:28:55 +0300754
755 /*
756 * If the PHY ID is flat 0 we ignore it. There are C45 PHYs
757 * that return all 0s for C22 reads (like Aquantia AQR112) and
758 * there are C22 PHYs that return all 0s for C45 reads (like
759 * Atheros AR8035).
760 */
761 if (r == 0 && phy_id == 0)
762 goto next;
763
Troy Kisky9519bc52012-10-22 16:40:43 +0000764 /* If the PHY ID is mostly f's, we didn't find anything */
Pankaj Bansal3c43a482018-11-16 06:26:18 +0000765 if (r == 0 && (phy_id & 0x1fffffff) != 0x1fffffff) {
766 is_c45 = (devad == MDIO_DEVAD_NONE) ? false : true;
767 return phy_device_create(bus, addr, phy_id, is_c45,
768 interface);
769 }
Alex Marginean920fe672019-07-05 12:28:55 +0300770next:
Troy Kisky9519bc52012-10-22 16:40:43 +0000771 phy_mask &= ~(1 << addr);
772 }
773 return NULL;
774}
775
776static struct phy_device *search_for_existing_phy(struct mii_dev *bus,
Mario Six77577432018-01-15 11:08:27 +0100777 uint phy_mask,
778 phy_interface_t interface)
Troy Kisky9519bc52012-10-22 16:40:43 +0000779{
780 /* If we have one, return the existing device, with new interface */
781 while (phy_mask) {
782 int addr = ffs(phy_mask) - 1;
Mario Six77577432018-01-15 11:08:27 +0100783
Troy Kisky9519bc52012-10-22 16:40:43 +0000784 if (bus->phymap[addr]) {
785 bus->phymap[addr]->interface = interface;
786 return bus->phymap[addr];
787 }
788 phy_mask &= ~(1 << addr);
789 }
790 return NULL;
791}
792
793static struct phy_device *get_phy_device_by_mask(struct mii_dev *bus,
Mario Six77577432018-01-15 11:08:27 +0100794 uint phy_mask,
795 phy_interface_t interface)
Troy Kisky9519bc52012-10-22 16:40:43 +0000796{
Troy Kisky9519bc52012-10-22 16:40:43 +0000797 struct phy_device *phydev;
Florin Chiculita0439bee2020-04-29 14:25:48 +0300798 int devad[] = {
799 /* Clause-22 */
800 MDIO_DEVAD_NONE,
801 /* Clause-45 */
802 MDIO_MMD_PMAPMD,
803 MDIO_MMD_WIS,
804 MDIO_MMD_PCS,
805 MDIO_MMD_PHYXS,
806 MDIO_MMD_VEND1,
807 };
808 int i, devad_cnt;
Troy Kisky9519bc52012-10-22 16:40:43 +0000809
Florin Chiculita0439bee2020-04-29 14:25:48 +0300810 devad_cnt = sizeof(devad)/sizeof(int);
Troy Kisky9519bc52012-10-22 16:40:43 +0000811 phydev = search_for_existing_phy(bus, phy_mask, interface);
812 if (phydev)
813 return phydev;
Florin Chiculita0439bee2020-04-29 14:25:48 +0300814 /* try different access clauses */
815 for (i = 0; i < devad_cnt; i++) {
Troy Kisky9519bc52012-10-22 16:40:43 +0000816 phydev = create_phy_by_mask(bus, phy_mask,
Florin Chiculita0439bee2020-04-29 14:25:48 +0300817 devad[i], interface);
Troy Kisky9519bc52012-10-22 16:40:43 +0000818 if (IS_ERR(phydev))
819 return NULL;
820 if (phydev)
821 return phydev;
822 }
Bin Meng59c6d892015-10-07 21:19:30 -0700823
824 debug("\n%s PHY: ", bus->name);
825 while (phy_mask) {
826 int addr = ffs(phy_mask) - 1;
Mario Six77577432018-01-15 11:08:27 +0100827
Bin Meng59c6d892015-10-07 21:19:30 -0700828 debug("%d ", addr);
829 phy_mask &= ~(1 << addr);
830 }
831 debug("not found\n");
Bin Meng0776c572015-10-07 21:19:29 -0700832
833 return NULL;
Troy Kisky9519bc52012-10-22 16:40:43 +0000834}
835
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500836/**
Mario Six77577432018-01-15 11:08:27 +0100837 * get_phy_device - reads the specified PHY device and returns its
838 * @phy_device struct
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500839 * @bus: the target MII bus
840 * @addr: PHY address on the MII bus
841 *
842 * Description: Reads the ID registers of the PHY at @addr on the
843 * @bus, then allocates and returns the phy_device to represent it.
844 */
Kim Phillips914b0782012-10-29 13:34:34 +0000845static struct phy_device *get_phy_device(struct mii_dev *bus, int addr,
846 phy_interface_t interface)
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500847{
Troy Kisky9519bc52012-10-22 16:40:43 +0000848 return get_phy_device_by_mask(bus, 1 << addr, interface);
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500849}
850
851int phy_reset(struct phy_device *phydev)
852{
853 int reg;
854 int timeout = 500;
855 int devad = MDIO_DEVAD_NONE;
856
Shaohui Xie62a7b922016-01-28 15:55:46 +0800857 if (phydev->flags & PHY_FLAG_BROKEN_RESET)
858 return 0;
859
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500860#ifdef CONFIG_PHYLIB_10G
861 /* If it's 10G, we need to issue reset through one of the MMDs */
862 if (is_10g_interface(phydev->interface)) {
863 if (!phydev->mmds)
864 gen10g_discover_mmds(phydev);
865
866 devad = ffs(phydev->mmds) - 1;
867 }
868#endif
869
Stefan Agnere64013d2015-12-09 11:21:25 -0800870 if (phy_write(phydev, devad, MII_BMCR, BMCR_RESET) < 0) {
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500871 debug("PHY reset failed\n");
872 return -1;
873 }
874
875#ifdef CONFIG_PHY_RESET_DELAY
876 udelay(CONFIG_PHY_RESET_DELAY); /* Intel LXT971A needs this */
877#endif
878 /*
879 * Poll the control register for the reset bit to go to 0 (it is
880 * auto-clearing). This should happen within 0.5 seconds per the
881 * IEEE spec.
882 */
Stefan Agnere64013d2015-12-09 11:21:25 -0800883 reg = phy_read(phydev, devad, MII_BMCR);
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500884 while ((reg & BMCR_RESET) && timeout--) {
885 reg = phy_read(phydev, devad, MII_BMCR);
886
887 if (reg < 0) {
888 debug("PHY status read failed\n");
889 return -1;
890 }
891 udelay(1000);
892 }
893
894 if (reg & BMCR_RESET) {
895 puts("PHY reset timed out\n");
896 return -1;
897 }
898
899 return 0;
900}
901
902int miiphy_reset(const char *devname, unsigned char addr)
903{
904 struct mii_dev *bus = miiphy_get_dev_by_name(devname);
905 struct phy_device *phydev;
906
907 /*
908 * miiphy_reset was only used on standard PHYs, so we'll fake it here.
909 * If later code tries to connect with the right interface, this will
910 * be corrected by get_phy_device in phy_connect()
911 */
912 phydev = get_phy_device(bus, addr, PHY_INTERFACE_MODE_MII);
913
914 return phy_reset(phydev);
915}
916
Mario Six77577432018-01-15 11:08:27 +0100917struct phy_device *phy_find_by_mask(struct mii_dev *bus, uint phy_mask,
918 phy_interface_t interface)
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500919{
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500920 /* Reset the bus */
Jörg Krause71b1d862015-07-15 15:18:22 +0200921 if (bus->reset) {
Vladimir Zapolskiy46f10bb2011-09-05 07:24:07 +0000922 bus->reset(bus);
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500923
Jörg Krause71b1d862015-07-15 15:18:22 +0200924 /* Wait 15ms to make sure the PHY has come out of hard reset */
Mario Six77577432018-01-15 11:08:27 +0100925 mdelay(15);
Jörg Krause71b1d862015-07-15 15:18:22 +0200926 }
927
Troy Kisky9519bc52012-10-22 16:40:43 +0000928 return get_phy_device_by_mask(bus, phy_mask, interface);
929}
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500930
Simon Glassdbad3462015-04-05 16:07:39 -0600931#ifdef CONFIG_DM_ETH
932void phy_connect_dev(struct phy_device *phydev, struct udevice *dev)
933#else
Troy Kisky9519bc52012-10-22 16:40:43 +0000934void phy_connect_dev(struct phy_device *phydev, struct eth_device *dev)
Simon Glassdbad3462015-04-05 16:07:39 -0600935#endif
Troy Kisky9519bc52012-10-22 16:40:43 +0000936{
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500937 /* Soft Reset the PHY */
938 phy_reset(phydev);
Bin Mengf87a15c2015-10-07 21:19:31 -0700939 if (phydev->dev && phydev->dev != dev) {
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500940 printf("%s:%d is connected to %s. Reconnecting to %s\n",
Mario Six77577432018-01-15 11:08:27 +0100941 phydev->bus->name, phydev->addr,
942 phydev->dev->name, dev->name);
Troy Kisky9519bc52012-10-22 16:40:43 +0000943 }
Andy Flemingaecf6fc2011-04-08 02:10:27 -0500944 phydev->dev = dev;
Wolfgang Denka71ebc42011-07-24 21:39:10 +0000945 debug("%s connected to %s\n", dev->name, phydev->drv->name);
Troy Kisky9519bc52012-10-22 16:40:43 +0000946}
Siva Durga Prasad Paladugud5c4e1e2018-11-27 11:49:11 +0530947
948#ifdef CONFIG_PHY_XILINX_GMII2RGMII
Siva Durga Prasad Paladugud5c4e1e2018-11-27 11:49:11 +0530949static struct phy_device *phy_connect_gmii2rgmii(struct mii_dev *bus,
950 struct udevice *dev,
951 phy_interface_t interface)
Siva Durga Prasad Paladugud5c4e1e2018-11-27 11:49:11 +0530952{
953 struct phy_device *phydev = NULL;
Michal Simek77272032021-04-26 14:26:48 +0200954 ofnode node;
Siva Durga Prasad Paladugud5c4e1e2018-11-27 11:49:11 +0530955
Michal Simek77272032021-04-26 14:26:48 +0200956 ofnode_for_each_subnode(node, dev_ofnode(dev)) {
Bin Meng021e7e72021-03-14 20:14:50 +0800957 node = ofnode_by_compatible(node, "xlnx,gmii-to-rgmii-1.0");
958 if (ofnode_valid(node)) {
959 phydev = phy_device_create(bus, 0,
Siva Durga Prasad Paladugud5c4e1e2018-11-27 11:49:11 +0530960 PHY_GMII2RGMII_ID, false,
961 interface);
Bin Meng021e7e72021-03-14 20:14:50 +0800962 if (phydev)
963 phydev->node = node;
Siva Durga Prasad Paladugud5c4e1e2018-11-27 11:49:11 +0530964 break;
965 }
Bin Meng021e7e72021-03-14 20:14:50 +0800966
967 node = ofnode_first_subnode(node);
Siva Durga Prasad Paladugud5c4e1e2018-11-27 11:49:11 +0530968 }
969
970 return phydev;
971}
972#endif
Troy Kisky9519bc52012-10-22 16:40:43 +0000973
Siva Durga Prasad Paladugu03f937a2018-11-27 11:49:10 +0530974#ifdef CONFIG_PHY_FIXED
Vladimir Oltean8c089f72021-01-25 14:23:52 +0200975/**
976 * fixed_phy_create() - create an unconnected fixed-link pseudo-PHY device
977 * @node: OF node for the container of the fixed-link node
978 *
979 * Description: Creates a struct phy_device based on a fixed-link of_node
980 * description. Can be used without phy_connect by drivers which do not expose
981 * a UCLASS_ETH udevice.
982 */
983struct phy_device *fixed_phy_create(ofnode node)
984{
985 phy_interface_t interface = PHY_INTERFACE_MODE_NONE;
Vladimir Oltean6ca194a2021-03-14 20:14:48 +0800986 struct phy_device *phydev;
Vladimir Oltean8c089f72021-01-25 14:23:52 +0200987 const char *if_str;
988 ofnode subnode;
989
990 if_str = ofnode_read_string(node, "phy-mode");
991 if (!if_str) {
992 if_str = ofnode_read_string(node, "phy-interface-type");
993 }
994 if (if_str) {
995 interface = phy_get_interface_by_name(if_str);
996 }
997
998 subnode = ofnode_find_subnode(node, "fixed-link");
999 if (!ofnode_valid(subnode)) {
1000 return NULL;
1001 }
1002
Vladimir Oltean6ca194a2021-03-14 20:14:48 +08001003 phydev = phy_device_create(NULL, 0, PHY_FIXED_ID, false, interface);
1004 if (phydev)
1005 phydev->node = subnode;
1006
1007 return phydev;
Vladimir Oltean8c089f72021-01-25 14:23:52 +02001008}
1009
Siva Durga Prasad Paladugu03f937a2018-11-27 11:49:10 +05301010static struct phy_device *phy_connect_fixed(struct mii_dev *bus,
1011 struct udevice *dev,
1012 phy_interface_t interface)
Troy Kisky9519bc52012-10-22 16:40:43 +00001013{
Vladimir Oltean6ca194a2021-03-14 20:14:48 +08001014 ofnode node = dev_ofnode(dev), subnode;
Bin Mengb34ef722021-03-14 20:14:52 +08001015 struct phy_device *phydev = NULL;
Vladimir Oltean6ca194a2021-03-14 20:14:48 +08001016
Bin Mengb34ef722021-03-14 20:14:52 +08001017 if (ofnode_phy_is_fixed_link(node, &subnode)) {
1018 phydev = phy_device_create(bus, 0, PHY_FIXED_ID,
1019 false, interface);
1020 if (phydev)
1021 phydev->node = subnode;
1022 }
Siva Durga Prasad Paladugu03f937a2018-11-27 11:49:10 +05301023
1024 return phydev;
1025}
Hannes Schmelzerda494602017-03-23 15:11:43 +01001026#endif
Siva Durga Prasad Paladugu03f937a2018-11-27 11:49:10 +05301027
1028#ifdef CONFIG_DM_ETH
1029struct phy_device *phy_connect(struct mii_dev *bus, int addr,
1030 struct udevice *dev,
1031 phy_interface_t interface)
1032#else
1033struct phy_device *phy_connect(struct mii_dev *bus, int addr,
1034 struct eth_device *dev,
1035 phy_interface_t interface)
1036#endif
1037{
1038 struct phy_device *phydev = NULL;
Priyanka Jain11691fd2019-11-05 04:05:11 +00001039 uint mask = (addr >= 0) ? (1 << addr) : 0xffffffff;
Siva Durga Prasad Paladugu03f937a2018-11-27 11:49:10 +05301040
1041#ifdef CONFIG_PHY_FIXED
1042 phydev = phy_connect_fixed(bus, dev, interface);
1043#endif
Samuel Mendoza-Jonasb069c4a2019-06-18 11:37:18 +10001044
1045#ifdef CONFIG_PHY_NCSI
1046 if (!phydev)
1047 phydev = phy_device_create(bus, 0, PHY_NCSI_ID, false, interface);
1048#endif
1049
Siva Durga Prasad Paladugud5c4e1e2018-11-27 11:49:11 +05301050#ifdef CONFIG_PHY_XILINX_GMII2RGMII
1051 if (!phydev)
1052 phydev = phy_connect_gmii2rgmii(bus, dev, interface);
1053#endif
Siva Durga Prasad Paladugu03f937a2018-11-27 11:49:10 +05301054
Mario Six77577432018-01-15 11:08:27 +01001055 if (!phydev)
Hannes Schmelzer02505e92019-03-29 09:54:05 +01001056 phydev = phy_find_by_mask(bus, mask, interface);
Andy Flemingaecf6fc2011-04-08 02:10:27 -05001057
Troy Kisky9519bc52012-10-22 16:40:43 +00001058 if (phydev)
1059 phy_connect_dev(phydev, dev);
1060 else
1061 printf("Could not get PHY for %s: addr %d\n", bus->name, addr);
Andy Flemingaecf6fc2011-04-08 02:10:27 -05001062 return phydev;
1063}
1064
Timur Tabi251180b2012-07-05 10:33:18 +00001065/*
1066 * Start the PHY. Returns 0 on success, or a negative error code.
1067 */
Andy Flemingaecf6fc2011-04-08 02:10:27 -05001068int phy_startup(struct phy_device *phydev)
1069{
1070 if (phydev->drv->startup)
Timur Tabi251180b2012-07-05 10:33:18 +00001071 return phydev->drv->startup(phydev);
Andy Flemingaecf6fc2011-04-08 02:10:27 -05001072
1073 return 0;
1074}
1075
Jeroen Hofsteee4f89472014-10-08 22:57:26 +02001076__weak int board_phy_config(struct phy_device *phydev)
Andy Flemingaecf6fc2011-04-08 02:10:27 -05001077{
Troy Kisky85846412012-02-07 14:08:49 +00001078 if (phydev->drv->config)
1079 return phydev->drv->config(phydev);
Andy Flemingaecf6fc2011-04-08 02:10:27 -05001080 return 0;
1081}
1082
Andy Flemingaecf6fc2011-04-08 02:10:27 -05001083int phy_config(struct phy_device *phydev)
1084{
Andy Flemingaecf6fc2011-04-08 02:10:27 -05001085 /* Invoke an optional board-specific helper */
Michal Simek24ce2322016-05-18 14:37:23 +02001086 return board_phy_config(phydev);
Andy Flemingaecf6fc2011-04-08 02:10:27 -05001087}
1088
1089int phy_shutdown(struct phy_device *phydev)
1090{
1091 if (phydev->drv->shutdown)
1092 phydev->drv->shutdown(phydev);
1093
1094 return 0;
1095}
Simon Glassdbad3462015-04-05 16:07:39 -06001096
1097int phy_get_interface_by_name(const char *str)
1098{
1099 int i;
1100
1101 for (i = 0; i < PHY_INTERFACE_MODE_COUNT; i++) {
1102 if (!strcmp(str, phy_interface_strings[i]))
1103 return i;
1104 }
1105
1106 return -1;
1107}