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1/*
2 * drivers/net/phy/marvell.c
3 *
4 * Driver for Marvell PHYs
5 *
6 * Author: Andy Fleming
7 *
8 * Copyright (c) 2004 Freescale Semiconductor, Inc.
9 *
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the
12 * Free Software Foundation; either version 2 of the License, or (at your
13 * option) any later version.
14 *
15 */
16#include <linux/kernel.h>
17#include <linux/string.h>
18#include <linux/errno.h>
19#include <linux/unistd.h>
20#include <linux/interrupt.h>
21#include <linux/init.h>
22#include <linux/delay.h>
23#include <linux/netdevice.h>
24#include <linux/etherdevice.h>
25#include <linux/skbuff.h>
26#include <linux/spinlock.h>
27#include <linux/mm.h>
28#include <linux/module.h>
29#include <linux/mii.h>
30#include <linux/ethtool.h>
31#include <linux/phy.h>
32#include <linux/marvell_phy.h>
33#include <linux/of.h>
34
35#include <asm/io.h>
36#include <asm/irq.h>
37#include <asm/uaccess.h>
38
39#define MII_MARVELL_PHY_PAGE 22
40
41#define MII_M1011_IEVENT 0x13
42#define MII_M1011_IEVENT_CLEAR 0x0000
43
44#define MII_M1011_IMASK 0x12
45#define MII_M1011_IMASK_INIT 0x6400
46#define MII_M1011_IMASK_CLEAR 0x0000
47
48#define MII_M1011_PHY_SCR 0x10
49#define MII_M1011_PHY_SCR_AUTO_CROSS 0x0060
50
51#define MII_M1145_PHY_EXT_CR 0x14
52#define MII_M1145_RGMII_RX_DELAY 0x0080
53#define MII_M1145_RGMII_TX_DELAY 0x0002
54
55#define MII_M1111_PHY_LED_CONTROL 0x18
56#define MII_M1111_PHY_LED_DIRECT 0x4100
57#define MII_M1111_PHY_LED_COMBINE 0x411c
58#define MII_M1111_PHY_EXT_CR 0x14
59#define MII_M1111_RX_DELAY 0x80
60#define MII_M1111_TX_DELAY 0x2
61#define MII_M1111_PHY_EXT_SR 0x1b
62
63#define MII_M1111_HWCFG_MODE_MASK 0xf
64#define MII_M1111_HWCFG_MODE_COPPER_RGMII 0xb
65#define MII_M1111_HWCFG_MODE_FIBER_RGMII 0x3
66#define MII_M1111_HWCFG_MODE_SGMII_NO_CLK 0x4
67#define MII_M1111_HWCFG_MODE_COPPER_RTBI 0x9
68#define MII_M1111_HWCFG_FIBER_COPPER_AUTO 0x8000
69#define MII_M1111_HWCFG_FIBER_COPPER_RES 0x2000
70
71#define MII_M1111_COPPER 0
72#define MII_M1111_FIBER 1
73
74#define MII_88E1121_PHY_MSCR_PAGE 2
75#define MII_88E1121_PHY_MSCR_REG 21
76#define MII_88E1121_PHY_MSCR_RX_DELAY BIT(5)
77#define MII_88E1121_PHY_MSCR_TX_DELAY BIT(4)
78#define MII_88E1121_PHY_MSCR_DELAY_MASK (~(0x3 << 4))
79
80#define MII_88E1318S_PHY_MSCR1_REG 16
81#define MII_88E1318S_PHY_MSCR1_PAD_ODD BIT(6)
82
83#define MII_88E1121_PHY_LED_CTRL 16
84#define MII_88E1121_PHY_LED_PAGE 3
85#define MII_88E1121_PHY_LED_DEF 0x0030
86
87#define MII_M1011_PHY_STATUS 0x11
88#define MII_M1011_PHY_STATUS_1000 0x8000
89#define MII_M1011_PHY_STATUS_100 0x4000
90#define MII_M1011_PHY_STATUS_SPD_MASK 0xc000
91#define MII_M1011_PHY_STATUS_FULLDUPLEX 0x2000
92#define MII_M1011_PHY_STATUS_RESOLVED 0x0800
93#define MII_M1011_PHY_STATUS_LINK 0x0400
94
95
96MODULE_DESCRIPTION("Marvell PHY driver");
97MODULE_AUTHOR("Andy Fleming");
98MODULE_LICENSE("GPL");
99
100static int marvell_ack_interrupt(struct phy_device *phydev)
101{
102 int err;
103
104 /* Clear the interrupts by reading the reg */
105 err = phy_read(phydev, MII_M1011_IEVENT);
106
107 if (err < 0)
108 return err;
109
110 return 0;
111}
112
113static int marvell_config_intr(struct phy_device *phydev)
114{
115 int err;
116
117 if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
118 err = phy_write(phydev, MII_M1011_IMASK, MII_M1011_IMASK_INIT);
119 else
120 err = phy_write(phydev, MII_M1011_IMASK, MII_M1011_IMASK_CLEAR);
121
122 return err;
123}
124
125static int marvell_config_aneg(struct phy_device *phydev)
126{
127 int err;
128
129 /* The Marvell PHY has an errata which requires
130 * that certain registers get written in order
131 * to restart autonegotiation */
132 err = phy_write(phydev, MII_BMCR, BMCR_RESET);
133
134 if (err < 0)
135 return err;
136
137 err = phy_write(phydev, 0x1d, 0x1f);
138 if (err < 0)
139 return err;
140
141 err = phy_write(phydev, 0x1e, 0x200c);
142 if (err < 0)
143 return err;
144
145 err = phy_write(phydev, 0x1d, 0x5);
146 if (err < 0)
147 return err;
148
149 err = phy_write(phydev, 0x1e, 0);
150 if (err < 0)
151 return err;
152
153 err = phy_write(phydev, 0x1e, 0x100);
154 if (err < 0)
155 return err;
156
157 err = phy_write(phydev, MII_M1011_PHY_SCR,
158 MII_M1011_PHY_SCR_AUTO_CROSS);
159 if (err < 0)
160 return err;
161
162 err = phy_write(phydev, MII_M1111_PHY_LED_CONTROL,
163 MII_M1111_PHY_LED_DIRECT);
164 if (err < 0)
165 return err;
166
167 err = genphy_config_aneg(phydev);
168 if (err < 0)
169 return err;
170
171 if (phydev->autoneg != AUTONEG_ENABLE) {
172 int bmcr;
173
174 /*
175 * A write to speed/duplex bits (that is performed by
176 * genphy_config_aneg() call above) must be followed by
177 * a software reset. Otherwise, the write has no effect.
178 */
179 bmcr = phy_read(phydev, MII_BMCR);
180 if (bmcr < 0)
181 return bmcr;
182
183 err = phy_write(phydev, MII_BMCR, bmcr | BMCR_RESET);
184 if (err < 0)
185 return err;
186 }
187
188 return 0;
189}
190
191#ifdef CONFIG_OF_MDIO
192/*
193 * Set and/or override some configuration registers based on the
194 * marvell,reg-init property stored in the of_node for the phydev.
195 *
196 * marvell,reg-init = <reg-page reg mask value>,...;
197 *
198 * There may be one or more sets of <reg-page reg mask value>:
199 *
200 * reg-page: which register bank to use.
201 * reg: the register.
202 * mask: if non-zero, ANDed with existing register value.
203 * value: ORed with the masked value and written to the regiser.
204 *
205 */
206static int marvell_of_reg_init(struct phy_device *phydev)
207{
208 const __be32 *paddr;
209 int len, i, saved_page, current_page, page_changed, ret;
210
211 if (!phydev->dev.of_node)
212 return 0;
213
214 paddr = of_get_property(phydev->dev.of_node, "marvell,reg-init", &len);
215 if (!paddr || len < (4 * sizeof(*paddr)))
216 return 0;
217
218 saved_page = phy_read(phydev, MII_MARVELL_PHY_PAGE);
219 if (saved_page < 0)
220 return saved_page;
221 page_changed = 0;
222 current_page = saved_page;
223
224 ret = 0;
225 len /= sizeof(*paddr);
226 for (i = 0; i < len - 3; i += 4) {
227 u16 reg_page = be32_to_cpup(paddr + i);
228 u16 reg = be32_to_cpup(paddr + i + 1);
229 u16 mask = be32_to_cpup(paddr + i + 2);
230 u16 val_bits = be32_to_cpup(paddr + i + 3);
231 int val;
232
233 if (reg_page != current_page) {
234 current_page = reg_page;
235 page_changed = 1;
236 ret = phy_write(phydev, MII_MARVELL_PHY_PAGE, reg_page);
237 if (ret < 0)
238 goto err;
239 }
240
241 val = 0;
242 if (mask) {
243 val = phy_read(phydev, reg);
244 if (val < 0) {
245 ret = val;
246 goto err;
247 }
248 val &= mask;
249 }
250 val |= val_bits;
251
252 ret = phy_write(phydev, reg, val);
253 if (ret < 0)
254 goto err;
255
256 }
257err:
258 if (page_changed) {
259 i = phy_write(phydev, MII_MARVELL_PHY_PAGE, saved_page);
260 if (ret == 0)
261 ret = i;
262 }
263 return ret;
264}
265#else
266static int marvell_of_reg_init(struct phy_device *phydev)
267{
268 return 0;
269}
270#endif /* CONFIG_OF_MDIO */
271
272static int m88e1121_config_aneg(struct phy_device *phydev)
273{
274 int err, oldpage, mscr;
275
276 oldpage = phy_read(phydev, MII_MARVELL_PHY_PAGE);
277
278 err = phy_write(phydev, MII_MARVELL_PHY_PAGE,
279 MII_88E1121_PHY_MSCR_PAGE);
280 if (err < 0)
281 return err;
282
283 if ((phydev->interface == PHY_INTERFACE_MODE_RGMII) ||
284 (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) ||
285 (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) ||
286 (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID)) {
287
288 mscr = phy_read(phydev, MII_88E1121_PHY_MSCR_REG) &
289 MII_88E1121_PHY_MSCR_DELAY_MASK;
290
291 if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID)
292 mscr |= (MII_88E1121_PHY_MSCR_RX_DELAY |
293 MII_88E1121_PHY_MSCR_TX_DELAY);
294 else if (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID)
295 mscr |= MII_88E1121_PHY_MSCR_RX_DELAY;
296 else if (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID)
297 mscr |= MII_88E1121_PHY_MSCR_TX_DELAY;
298
299 err = phy_write(phydev, MII_88E1121_PHY_MSCR_REG, mscr);
300 if (err < 0)
301 return err;
302 }
303
304 phy_write(phydev, MII_MARVELL_PHY_PAGE, oldpage);
305
306 err = phy_write(phydev, MII_BMCR, BMCR_RESET);
307 if (err < 0)
308 return err;
309
310 err = phy_write(phydev, MII_M1011_PHY_SCR,
311 MII_M1011_PHY_SCR_AUTO_CROSS);
312 if (err < 0)
313 return err;
314
315 oldpage = phy_read(phydev, MII_MARVELL_PHY_PAGE);
316
317 phy_write(phydev, MII_MARVELL_PHY_PAGE, MII_88E1121_PHY_LED_PAGE);
318 phy_write(phydev, MII_88E1121_PHY_LED_CTRL, MII_88E1121_PHY_LED_DEF);
319 phy_write(phydev, MII_MARVELL_PHY_PAGE, oldpage);
320
321 err = genphy_config_aneg(phydev);
322
323 return err;
324}
325
326static int m88e1318_config_aneg(struct phy_device *phydev)
327{
328 int err, oldpage, mscr;
329
330 oldpage = phy_read(phydev, MII_MARVELL_PHY_PAGE);
331
332 err = phy_write(phydev, MII_MARVELL_PHY_PAGE,
333 MII_88E1121_PHY_MSCR_PAGE);
334 if (err < 0)
335 return err;
336
337 mscr = phy_read(phydev, MII_88E1318S_PHY_MSCR1_REG);
338 mscr |= MII_88E1318S_PHY_MSCR1_PAD_ODD;
339
340 err = phy_write(phydev, MII_88E1318S_PHY_MSCR1_REG, mscr);
341 if (err < 0)
342 return err;
343
344 err = phy_write(phydev, MII_MARVELL_PHY_PAGE, oldpage);
345 if (err < 0)
346 return err;
347
348 return m88e1121_config_aneg(phydev);
349}
350
351static int m88e1111_config_init(struct phy_device *phydev)
352{
353 int err;
354 int temp;
355
356 /* Enable Fiber/Copper auto selection */
357 temp = phy_read(phydev, MII_M1111_PHY_EXT_SR);
358 temp &= ~MII_M1111_HWCFG_FIBER_COPPER_AUTO;
359 phy_write(phydev, MII_M1111_PHY_EXT_SR, temp);
360
361 temp = phy_read(phydev, MII_BMCR);
362 temp |= BMCR_RESET;
363 phy_write(phydev, MII_BMCR, temp);
364
365 if ((phydev->interface == PHY_INTERFACE_MODE_RGMII) ||
366 (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) ||
367 (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) ||
368 (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID)) {
369
370 temp = phy_read(phydev, MII_M1111_PHY_EXT_CR);
371 if (temp < 0)
372 return temp;
373
374 if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) {
375 temp |= (MII_M1111_RX_DELAY | MII_M1111_TX_DELAY);
376 } else if (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) {
377 temp &= ~MII_M1111_TX_DELAY;
378 temp |= MII_M1111_RX_DELAY;
379 } else if (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID) {
380 temp &= ~MII_M1111_RX_DELAY;
381 temp |= MII_M1111_TX_DELAY;
382 }
383
384 err = phy_write(phydev, MII_M1111_PHY_EXT_CR, temp);
385 if (err < 0)
386 return err;
387
388 temp = phy_read(phydev, MII_M1111_PHY_EXT_SR);
389 if (temp < 0)
390 return temp;
391
392 temp &= ~(MII_M1111_HWCFG_MODE_MASK);
393
394 if (temp & MII_M1111_HWCFG_FIBER_COPPER_RES)
395 temp |= MII_M1111_HWCFG_MODE_FIBER_RGMII;
396 else
397 temp |= MII_M1111_HWCFG_MODE_COPPER_RGMII;
398
399 err = phy_write(phydev, MII_M1111_PHY_EXT_SR, temp);
400 if (err < 0)
401 return err;
402 }
403
404 if (phydev->interface == PHY_INTERFACE_MODE_SGMII) {
405 temp = phy_read(phydev, MII_M1111_PHY_EXT_SR);
406 if (temp < 0)
407 return temp;
408
409 temp &= ~(MII_M1111_HWCFG_MODE_MASK);
410 temp |= MII_M1111_HWCFG_MODE_SGMII_NO_CLK;
411 temp |= MII_M1111_HWCFG_FIBER_COPPER_AUTO;
412
413 err = phy_write(phydev, MII_M1111_PHY_EXT_SR, temp);
414 if (err < 0)
415 return err;
416 }
417
418 if (phydev->interface == PHY_INTERFACE_MODE_RTBI) {
419 temp = phy_read(phydev, MII_M1111_PHY_EXT_CR);
420 if (temp < 0)
421 return temp;
422 temp |= (MII_M1111_RX_DELAY | MII_M1111_TX_DELAY);
423 err = phy_write(phydev, MII_M1111_PHY_EXT_CR, temp);
424 if (err < 0)
425 return err;
426
427 temp = phy_read(phydev, MII_M1111_PHY_EXT_SR);
428 if (temp < 0)
429 return temp;
430 temp &= ~(MII_M1111_HWCFG_MODE_MASK | MII_M1111_HWCFG_FIBER_COPPER_RES);
431 temp |= 0x7 | MII_M1111_HWCFG_FIBER_COPPER_AUTO;
432 err = phy_write(phydev, MII_M1111_PHY_EXT_SR, temp);
433 if (err < 0)
434 return err;
435
436 /* soft reset */
437 err = phy_write(phydev, MII_BMCR, BMCR_RESET);
438 if (err < 0)
439 return err;
440 do
441 temp = phy_read(phydev, MII_BMCR);
442 while (temp & BMCR_RESET);
443
444 temp = phy_read(phydev, MII_M1111_PHY_EXT_SR);
445 if (temp < 0)
446 return temp;
447 temp &= ~(MII_M1111_HWCFG_MODE_MASK | MII_M1111_HWCFG_FIBER_COPPER_RES);
448 temp |= MII_M1111_HWCFG_MODE_COPPER_RTBI | MII_M1111_HWCFG_FIBER_COPPER_AUTO;
449 err = phy_write(phydev, MII_M1111_PHY_EXT_SR, temp);
450 if (err < 0)
451 return err;
452 }
453
454 err = marvell_of_reg_init(phydev);
455 if (err < 0)
456 return err;
457
458 err = phy_write(phydev, MII_BMCR, BMCR_RESET);
459 if (err < 0)
460 return err;
461
462 return 0;
463}
464
465static int m88e1118_config_aneg(struct phy_device *phydev)
466{
467 int err;
468
469 err = phy_write(phydev, MII_BMCR, BMCR_RESET);
470 if (err < 0)
471 return err;
472
473 err = phy_write(phydev, MII_M1011_PHY_SCR,
474 MII_M1011_PHY_SCR_AUTO_CROSS);
475 if (err < 0)
476 return err;
477
478 err = genphy_config_aneg(phydev);
479 return 0;
480}
481
482static int m88e1118_config_init(struct phy_device *phydev)
483{
484 int err;
485
486 /* Change address */
487 err = phy_write(phydev, MII_MARVELL_PHY_PAGE, 0x0002);
488 if (err < 0)
489 return err;
490
491 /* Enable 1000 Mbit */
492 err = phy_write(phydev, 0x15, 0x1070);
493 if (err < 0)
494 return err;
495
496 /* Change address */
497 err = phy_write(phydev, MII_MARVELL_PHY_PAGE, 0x0003);
498 if (err < 0)
499 return err;
500
501 /* Adjust LED Control */
502 if (phydev->dev_flags & MARVELL_PHY_M1118_DNS323_LEDS)
503 err = phy_write(phydev, 0x10, 0x1100);
504 else
505 err = phy_write(phydev, 0x10, 0x021e);
506 if (err < 0)
507 return err;
508
509 err = marvell_of_reg_init(phydev);
510 if (err < 0)
511 return err;
512
513 /* Reset address */
514 err = phy_write(phydev, MII_MARVELL_PHY_PAGE, 0x0);
515 if (err < 0)
516 return err;
517
518 err = phy_write(phydev, MII_BMCR, BMCR_RESET);
519 if (err < 0)
520 return err;
521
522 return 0;
523}
524
525static int m88e1149_config_init(struct phy_device *phydev)
526{
527 int err;
528
529 /* Change address */
530 err = phy_write(phydev, MII_MARVELL_PHY_PAGE, 0x0002);
531 if (err < 0)
532 return err;
533
534 /* Enable 1000 Mbit */
535 err = phy_write(phydev, 0x15, 0x1048);
536 if (err < 0)
537 return err;
538
539 err = marvell_of_reg_init(phydev);
540 if (err < 0)
541 return err;
542
543 /* Reset address */
544 err = phy_write(phydev, MII_MARVELL_PHY_PAGE, 0x0);
545 if (err < 0)
546 return err;
547
548 err = phy_write(phydev, MII_BMCR, BMCR_RESET);
549 if (err < 0)
550 return err;
551
552 return 0;
553}
554
555static int m88e1145_config_init(struct phy_device *phydev)
556{
557 int err;
558
559 /* Take care of errata E0 & E1 */
560 err = phy_write(phydev, 0x1d, 0x001b);
561 if (err < 0)
562 return err;
563
564 err = phy_write(phydev, 0x1e, 0x418f);
565 if (err < 0)
566 return err;
567
568 err = phy_write(phydev, 0x1d, 0x0016);
569 if (err < 0)
570 return err;
571
572 err = phy_write(phydev, 0x1e, 0xa2da);
573 if (err < 0)
574 return err;
575
576 if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) {
577 int temp = phy_read(phydev, MII_M1145_PHY_EXT_CR);
578 if (temp < 0)
579 return temp;
580
581 temp |= (MII_M1145_RGMII_RX_DELAY | MII_M1145_RGMII_TX_DELAY);
582
583 err = phy_write(phydev, MII_M1145_PHY_EXT_CR, temp);
584 if (err < 0)
585 return err;
586
587 if (phydev->dev_flags & MARVELL_PHY_M1145_FLAGS_RESISTANCE) {
588 err = phy_write(phydev, 0x1d, 0x0012);
589 if (err < 0)
590 return err;
591
592 temp = phy_read(phydev, 0x1e);
593 if (temp < 0)
594 return temp;
595
596 temp &= 0xf03f;
597 temp |= 2 << 9; /* 36 ohm */
598 temp |= 2 << 6; /* 39 ohm */
599
600 err = phy_write(phydev, 0x1e, temp);
601 if (err < 0)
602 return err;
603
604 err = phy_write(phydev, 0x1d, 0x3);
605 if (err < 0)
606 return err;
607
608 err = phy_write(phydev, 0x1e, 0x8000);
609 if (err < 0)
610 return err;
611 }
612 }
613
614 err = marvell_of_reg_init(phydev);
615 if (err < 0)
616 return err;
617
618 return 0;
619}
620
621/* marvell_read_status
622 *
623 * Generic status code does not detect Fiber correctly!
624 * Description:
625 * Check the link, then figure out the current state
626 * by comparing what we advertise with what the link partner
627 * advertises. Start by checking the gigabit possibilities,
628 * then move on to 10/100.
629 */
630static int marvell_read_status(struct phy_device *phydev)
631{
632 int adv;
633 int err;
634 int lpa;
635 int status = 0;
636
637 /* Update the link, but return if there
638 * was an error */
639 err = genphy_update_link(phydev);
640 if (err)
641 return err;
642
643 if (AUTONEG_ENABLE == phydev->autoneg) {
644 status = phy_read(phydev, MII_M1011_PHY_STATUS);
645 if (status < 0)
646 return status;
647
648 lpa = phy_read(phydev, MII_LPA);
649 if (lpa < 0)
650 return lpa;
651
652 adv = phy_read(phydev, MII_ADVERTISE);
653 if (adv < 0)
654 return adv;
655
656 lpa &= adv;
657
658 if (status & MII_M1011_PHY_STATUS_FULLDUPLEX)
659 phydev->duplex = DUPLEX_FULL;
660 else
661 phydev->duplex = DUPLEX_HALF;
662
663 status = status & MII_M1011_PHY_STATUS_SPD_MASK;
664 phydev->pause = phydev->asym_pause = 0;
665
666 switch (status) {
667 case MII_M1011_PHY_STATUS_1000:
668 phydev->speed = SPEED_1000;
669 break;
670
671 case MII_M1011_PHY_STATUS_100:
672 phydev->speed = SPEED_100;
673 break;
674
675 default:
676 phydev->speed = SPEED_10;
677 break;
678 }
679
680 if (phydev->duplex == DUPLEX_FULL) {
681 phydev->pause = lpa & LPA_PAUSE_CAP ? 1 : 0;
682 phydev->asym_pause = lpa & LPA_PAUSE_ASYM ? 1 : 0;
683 }
684 } else {
685 int bmcr = phy_read(phydev, MII_BMCR);
686
687 if (bmcr < 0)
688 return bmcr;
689
690 if (bmcr & BMCR_FULLDPLX)
691 phydev->duplex = DUPLEX_FULL;
692 else
693 phydev->duplex = DUPLEX_HALF;
694
695 if (bmcr & BMCR_SPEED1000)
696 phydev->speed = SPEED_1000;
697 else if (bmcr & BMCR_SPEED100)
698 phydev->speed = SPEED_100;
699 else
700 phydev->speed = SPEED_10;
701
702 phydev->pause = phydev->asym_pause = 0;
703 }
704
705 return 0;
706}
707
708static int m88e1121_did_interrupt(struct phy_device *phydev)
709{
710 int imask;
711
712 imask = phy_read(phydev, MII_M1011_IEVENT);
713
714 if (imask & MII_M1011_IMASK_INIT)
715 return 1;
716
717 return 0;
718}
719
720static struct phy_driver marvell_drivers[] = {
721 {
722 .phy_id = MARVELL_PHY_ID_88E1101,
723 .phy_id_mask = MARVELL_PHY_ID_MASK,
724 .name = "Marvell 88E1101",
725 .features = PHY_GBIT_FEATURES,
726 .flags = PHY_HAS_INTERRUPT,
727 .config_aneg = &marvell_config_aneg,
728 .read_status = &genphy_read_status,
729 .ack_interrupt = &marvell_ack_interrupt,
730 .config_intr = &marvell_config_intr,
731 .driver = { .owner = THIS_MODULE },
732 },
733 {
734 .phy_id = MARVELL_PHY_ID_88E1112,
735 .phy_id_mask = MARVELL_PHY_ID_MASK,
736 .name = "Marvell 88E1112",
737 .features = PHY_GBIT_FEATURES,
738 .flags = PHY_HAS_INTERRUPT,
739 .config_init = &m88e1111_config_init,
740 .config_aneg = &marvell_config_aneg,
741 .read_status = &genphy_read_status,
742 .ack_interrupt = &marvell_ack_interrupt,
743 .config_intr = &marvell_config_intr,
744 .driver = { .owner = THIS_MODULE },
745 },
746 {
747 .phy_id = MARVELL_PHY_ID_88E1111,
748 .phy_id_mask = MARVELL_PHY_ID_MASK,
749 .name = "Marvell 88E1111",
750 .features = PHY_GBIT_FEATURES,
751 .flags = PHY_HAS_INTERRUPT,
752 .config_init = &m88e1111_config_init,
753 .config_aneg = &marvell_config_aneg,
754 .read_status = &marvell_read_status,
755 .ack_interrupt = &marvell_ack_interrupt,
756 .config_intr = &marvell_config_intr,
757 .driver = { .owner = THIS_MODULE },
758 },
759 {
760 .phy_id = MARVELL_PHY_ID_88E1118,
761 .phy_id_mask = MARVELL_PHY_ID_MASK,
762 .name = "Marvell 88E1118",
763 .features = PHY_GBIT_FEATURES,
764 .flags = PHY_HAS_INTERRUPT,
765 .config_init = &m88e1118_config_init,
766 .config_aneg = &m88e1118_config_aneg,
767 .read_status = &genphy_read_status,
768 .ack_interrupt = &marvell_ack_interrupt,
769 .config_intr = &marvell_config_intr,
770 .driver = {.owner = THIS_MODULE,},
771 },
772 {
773 .phy_id = MARVELL_PHY_ID_88E1121R,
774 .phy_id_mask = MARVELL_PHY_ID_MASK,
775 .name = "Marvell 88E1121R",
776 .features = PHY_GBIT_FEATURES,
777 .flags = PHY_HAS_INTERRUPT,
778 .config_aneg = &m88e1121_config_aneg,
779 .read_status = &marvell_read_status,
780 .ack_interrupt = &marvell_ack_interrupt,
781 .config_intr = &marvell_config_intr,
782 .did_interrupt = &m88e1121_did_interrupt,
783 .driver = { .owner = THIS_MODULE },
784 },
785 {
786 .phy_id = MARVELL_PHY_ID_88E1318S,
787 .phy_id_mask = MARVELL_PHY_ID_MASK,
788 .name = "Marvell 88E1318S",
789 .features = PHY_GBIT_FEATURES,
790 .flags = PHY_HAS_INTERRUPT,
791 .config_aneg = &m88e1318_config_aneg,
792 .read_status = &marvell_read_status,
793 .ack_interrupt = &marvell_ack_interrupt,
794 .config_intr = &marvell_config_intr,
795 .did_interrupt = &m88e1121_did_interrupt,
796 .driver = { .owner = THIS_MODULE },
797 },
798 {
799 .phy_id = MARVELL_PHY_ID_88E1145,
800 .phy_id_mask = MARVELL_PHY_ID_MASK,
801 .name = "Marvell 88E1145",
802 .features = PHY_GBIT_FEATURES,
803 .flags = PHY_HAS_INTERRUPT,
804 .config_init = &m88e1145_config_init,
805 .config_aneg = &marvell_config_aneg,
806 .read_status = &genphy_read_status,
807 .ack_interrupt = &marvell_ack_interrupt,
808 .config_intr = &marvell_config_intr,
809 .driver = { .owner = THIS_MODULE },
810 },
811 {
812 .phy_id = MARVELL_PHY_ID_88E1149R,
813 .phy_id_mask = MARVELL_PHY_ID_MASK,
814 .name = "Marvell 88E1149R",
815 .features = PHY_GBIT_FEATURES,
816 .flags = PHY_HAS_INTERRUPT,
817 .config_init = &m88e1149_config_init,
818 .config_aneg = &m88e1118_config_aneg,
819 .read_status = &genphy_read_status,
820 .ack_interrupt = &marvell_ack_interrupt,
821 .config_intr = &marvell_config_intr,
822 .driver = { .owner = THIS_MODULE },
823 },
824 {
825 .phy_id = MARVELL_PHY_ID_88E1240,
826 .phy_id_mask = MARVELL_PHY_ID_MASK,
827 .name = "Marvell 88E1240",
828 .features = PHY_GBIT_FEATURES,
829 .flags = PHY_HAS_INTERRUPT,
830 .config_init = &m88e1111_config_init,
831 .config_aneg = &marvell_config_aneg,
832 .read_status = &genphy_read_status,
833 .ack_interrupt = &marvell_ack_interrupt,
834 .config_intr = &marvell_config_intr,
835 .driver = { .owner = THIS_MODULE },
836 },
837};
838
839static int __init marvell_init(void)
840{
841 int ret;
842 int i;
843
844 for (i = 0; i < ARRAY_SIZE(marvell_drivers); i++) {
845 ret = phy_driver_register(&marvell_drivers[i]);
846
847 if (ret) {
848 while (i-- > 0)
849 phy_driver_unregister(&marvell_drivers[i]);
850 return ret;
851 }
852 }
853
854 return 0;
855}
856
857static void __exit marvell_exit(void)
858{
859 int i;
860
861 for (i = 0; i < ARRAY_SIZE(marvell_drivers); i++)
862 phy_driver_unregister(&marvell_drivers[i]);
863}
864
865module_init(marvell_init);
866module_exit(marvell_exit);
867
868static struct mdio_device_id __maybe_unused marvell_tbl[] = {
869 { 0x01410c60, 0xfffffff0 },
870 { 0x01410c90, 0xfffffff0 },
871 { 0x01410cc0, 0xfffffff0 },
872 { 0x01410e10, 0xfffffff0 },
873 { 0x01410cb0, 0xfffffff0 },
874 { 0x01410cd0, 0xfffffff0 },
875 { 0x01410e50, 0xfffffff0 },
876 { 0x01410e30, 0xfffffff0 },
877 { 0x01410e90, 0xfffffff0 },
878 { }
879};
880
881MODULE_DEVICE_TABLE(mdio, marvell_tbl);
1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * drivers/net/phy/marvell.c
4 *
5 * Driver for Marvell PHYs
6 *
7 * Author: Andy Fleming
8 *
9 * Copyright (c) 2004 Freescale Semiconductor, Inc.
10 *
11 * Copyright (c) 2013 Michael Stapelberg <michael@stapelberg.de>
12 */
13#include <linux/kernel.h>
14#include <linux/string.h>
15#include <linux/ctype.h>
16#include <linux/errno.h>
17#include <linux/unistd.h>
18#include <linux/hwmon.h>
19#include <linux/interrupt.h>
20#include <linux/init.h>
21#include <linux/delay.h>
22#include <linux/netdevice.h>
23#include <linux/etherdevice.h>
24#include <linux/skbuff.h>
25#include <linux/spinlock.h>
26#include <linux/mm.h>
27#include <linux/module.h>
28#include <linux/mii.h>
29#include <linux/ethtool.h>
30#include <linux/phy.h>
31#include <linux/marvell_phy.h>
32#include <linux/bitfield.h>
33#include <linux/of.h>
34
35#include <linux/io.h>
36#include <asm/irq.h>
37#include <linux/uaccess.h>
38
39#define MII_MARVELL_PHY_PAGE 22
40#define MII_MARVELL_COPPER_PAGE 0x00
41#define MII_MARVELL_FIBER_PAGE 0x01
42#define MII_MARVELL_MSCR_PAGE 0x02
43#define MII_MARVELL_LED_PAGE 0x03
44#define MII_MARVELL_MISC_TEST_PAGE 0x06
45#define MII_MARVELL_WOL_PAGE 0x11
46
47#define MII_M1011_IEVENT 0x13
48#define MII_M1011_IEVENT_CLEAR 0x0000
49
50#define MII_M1011_IMASK 0x12
51#define MII_M1011_IMASK_INIT 0x6400
52#define MII_M1011_IMASK_CLEAR 0x0000
53
54#define MII_M1011_PHY_SCR 0x10
55#define MII_M1011_PHY_SCR_DOWNSHIFT_EN BIT(11)
56#define MII_M1011_PHY_SCR_DOWNSHIFT_SHIFT 12
57#define MII_M1011_PHY_SRC_DOWNSHIFT_MASK 0x7800
58#define MII_M1011_PHY_SCR_MDI (0x0 << 5)
59#define MII_M1011_PHY_SCR_MDI_X (0x1 << 5)
60#define MII_M1011_PHY_SCR_AUTO_CROSS (0x3 << 5)
61
62#define MII_M1111_PHY_LED_CONTROL 0x18
63#define MII_M1111_PHY_LED_DIRECT 0x4100
64#define MII_M1111_PHY_LED_COMBINE 0x411c
65#define MII_M1111_PHY_EXT_CR 0x14
66#define MII_M1111_RGMII_RX_DELAY BIT(7)
67#define MII_M1111_RGMII_TX_DELAY BIT(1)
68#define MII_M1111_PHY_EXT_SR 0x1b
69
70#define MII_M1111_HWCFG_MODE_MASK 0xf
71#define MII_M1111_HWCFG_MODE_FIBER_RGMII 0x3
72#define MII_M1111_HWCFG_MODE_SGMII_NO_CLK 0x4
73#define MII_M1111_HWCFG_MODE_RTBI 0x7
74#define MII_M1111_HWCFG_MODE_COPPER_RTBI 0x9
75#define MII_M1111_HWCFG_MODE_COPPER_RGMII 0xb
76#define MII_M1111_HWCFG_FIBER_COPPER_RES BIT(13)
77#define MII_M1111_HWCFG_FIBER_COPPER_AUTO BIT(15)
78
79#define MII_88E1121_PHY_MSCR_REG 21
80#define MII_88E1121_PHY_MSCR_RX_DELAY BIT(5)
81#define MII_88E1121_PHY_MSCR_TX_DELAY BIT(4)
82#define MII_88E1121_PHY_MSCR_DELAY_MASK (BIT(5) | BIT(4))
83
84#define MII_88E1121_MISC_TEST 0x1a
85#define MII_88E1510_MISC_TEST_TEMP_THRESHOLD_MASK 0x1f00
86#define MII_88E1510_MISC_TEST_TEMP_THRESHOLD_SHIFT 8
87#define MII_88E1510_MISC_TEST_TEMP_IRQ_EN BIT(7)
88#define MII_88E1510_MISC_TEST_TEMP_IRQ BIT(6)
89#define MII_88E1121_MISC_TEST_TEMP_SENSOR_EN BIT(5)
90#define MII_88E1121_MISC_TEST_TEMP_MASK 0x1f
91
92#define MII_88E1510_TEMP_SENSOR 0x1b
93#define MII_88E1510_TEMP_SENSOR_MASK 0xff
94
95#define MII_88E1540_COPPER_CTRL3 0x1a
96#define MII_88E1540_COPPER_CTRL3_LINK_DOWN_DELAY_MASK GENMASK(11, 10)
97#define MII_88E1540_COPPER_CTRL3_LINK_DOWN_DELAY_00MS 0
98#define MII_88E1540_COPPER_CTRL3_LINK_DOWN_DELAY_10MS 1
99#define MII_88E1540_COPPER_CTRL3_LINK_DOWN_DELAY_20MS 2
100#define MII_88E1540_COPPER_CTRL3_LINK_DOWN_DELAY_40MS 3
101#define MII_88E1540_COPPER_CTRL3_FAST_LINK_DOWN BIT(9)
102
103#define MII_88E6390_MISC_TEST 0x1b
104#define MII_88E6390_MISC_TEST_SAMPLE_1S 0
105#define MII_88E6390_MISC_TEST_SAMPLE_10MS BIT(14)
106#define MII_88E6390_MISC_TEST_SAMPLE_DISABLE BIT(15)
107#define MII_88E6390_MISC_TEST_SAMPLE_ENABLE 0
108#define MII_88E6390_MISC_TEST_SAMPLE_MASK (0x3 << 14)
109
110#define MII_88E6390_TEMP_SENSOR 0x1c
111#define MII_88E6390_TEMP_SENSOR_MASK 0xff
112#define MII_88E6390_TEMP_SENSOR_SAMPLES 10
113
114#define MII_88E1318S_PHY_MSCR1_REG 16
115#define MII_88E1318S_PHY_MSCR1_PAD_ODD BIT(6)
116
117/* Copper Specific Interrupt Enable Register */
118#define MII_88E1318S_PHY_CSIER 0x12
119/* WOL Event Interrupt Enable */
120#define MII_88E1318S_PHY_CSIER_WOL_EIE BIT(7)
121
122/* LED Timer Control Register */
123#define MII_88E1318S_PHY_LED_TCR 0x12
124#define MII_88E1318S_PHY_LED_TCR_FORCE_INT BIT(15)
125#define MII_88E1318S_PHY_LED_TCR_INTn_ENABLE BIT(7)
126#define MII_88E1318S_PHY_LED_TCR_INT_ACTIVE_LOW BIT(11)
127
128/* Magic Packet MAC address registers */
129#define MII_88E1318S_PHY_MAGIC_PACKET_WORD2 0x17
130#define MII_88E1318S_PHY_MAGIC_PACKET_WORD1 0x18
131#define MII_88E1318S_PHY_MAGIC_PACKET_WORD0 0x19
132
133#define MII_88E1318S_PHY_WOL_CTRL 0x10
134#define MII_88E1318S_PHY_WOL_CTRL_CLEAR_WOL_STATUS BIT(12)
135#define MII_88E1318S_PHY_WOL_CTRL_MAGIC_PACKET_MATCH_ENABLE BIT(14)
136
137#define MII_PHY_LED_CTRL 16
138#define MII_88E1121_PHY_LED_DEF 0x0030
139#define MII_88E1510_PHY_LED_DEF 0x1177
140#define MII_88E1510_PHY_LED0_LINK_LED1_ACTIVE 0x1040
141
142#define MII_M1011_PHY_STATUS 0x11
143#define MII_M1011_PHY_STATUS_1000 0x8000
144#define MII_M1011_PHY_STATUS_100 0x4000
145#define MII_M1011_PHY_STATUS_SPD_MASK 0xc000
146#define MII_M1011_PHY_STATUS_FULLDUPLEX 0x2000
147#define MII_M1011_PHY_STATUS_RESOLVED 0x0800
148#define MII_M1011_PHY_STATUS_LINK 0x0400
149
150#define MII_88E3016_PHY_SPEC_CTRL 0x10
151#define MII_88E3016_DISABLE_SCRAMBLER 0x0200
152#define MII_88E3016_AUTO_MDIX_CROSSOVER 0x0030
153
154#define MII_88E1510_GEN_CTRL_REG_1 0x14
155#define MII_88E1510_GEN_CTRL_REG_1_MODE_MASK 0x7
156#define MII_88E1510_GEN_CTRL_REG_1_MODE_SGMII 0x1 /* SGMII to copper */
157#define MII_88E1510_GEN_CTRL_REG_1_RESET 0x8000 /* Soft reset */
158
159#define LPA_FIBER_1000HALF 0x40
160#define LPA_FIBER_1000FULL 0x20
161
162#define LPA_PAUSE_FIBER 0x180
163#define LPA_PAUSE_ASYM_FIBER 0x100
164
165#define ADVERTISE_FIBER_1000HALF 0x40
166#define ADVERTISE_FIBER_1000FULL 0x20
167
168#define ADVERTISE_PAUSE_FIBER 0x180
169#define ADVERTISE_PAUSE_ASYM_FIBER 0x100
170
171#define REGISTER_LINK_STATUS 0x400
172#define NB_FIBER_STATS 1
173
174MODULE_DESCRIPTION("Marvell PHY driver");
175MODULE_AUTHOR("Andy Fleming");
176MODULE_LICENSE("GPL");
177
178struct marvell_hw_stat {
179 const char *string;
180 u8 page;
181 u8 reg;
182 u8 bits;
183};
184
185static struct marvell_hw_stat marvell_hw_stats[] = {
186 { "phy_receive_errors_copper", 0, 21, 16},
187 { "phy_idle_errors", 0, 10, 8 },
188 { "phy_receive_errors_fiber", 1, 21, 16},
189};
190
191struct marvell_priv {
192 u64 stats[ARRAY_SIZE(marvell_hw_stats)];
193 char *hwmon_name;
194 struct device *hwmon_dev;
195};
196
197static int marvell_read_page(struct phy_device *phydev)
198{
199 return __phy_read(phydev, MII_MARVELL_PHY_PAGE);
200}
201
202static int marvell_write_page(struct phy_device *phydev, int page)
203{
204 return __phy_write(phydev, MII_MARVELL_PHY_PAGE, page);
205}
206
207static int marvell_set_page(struct phy_device *phydev, int page)
208{
209 return phy_write(phydev, MII_MARVELL_PHY_PAGE, page);
210}
211
212static int marvell_ack_interrupt(struct phy_device *phydev)
213{
214 int err;
215
216 /* Clear the interrupts by reading the reg */
217 err = phy_read(phydev, MII_M1011_IEVENT);
218
219 if (err < 0)
220 return err;
221
222 return 0;
223}
224
225static int marvell_config_intr(struct phy_device *phydev)
226{
227 int err;
228
229 if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
230 err = phy_write(phydev, MII_M1011_IMASK,
231 MII_M1011_IMASK_INIT);
232 else
233 err = phy_write(phydev, MII_M1011_IMASK,
234 MII_M1011_IMASK_CLEAR);
235
236 return err;
237}
238
239static int marvell_set_polarity(struct phy_device *phydev, int polarity)
240{
241 int reg;
242 int err;
243 int val;
244
245 /* get the current settings */
246 reg = phy_read(phydev, MII_M1011_PHY_SCR);
247 if (reg < 0)
248 return reg;
249
250 val = reg;
251 val &= ~MII_M1011_PHY_SCR_AUTO_CROSS;
252 switch (polarity) {
253 case ETH_TP_MDI:
254 val |= MII_M1011_PHY_SCR_MDI;
255 break;
256 case ETH_TP_MDI_X:
257 val |= MII_M1011_PHY_SCR_MDI_X;
258 break;
259 case ETH_TP_MDI_AUTO:
260 case ETH_TP_MDI_INVALID:
261 default:
262 val |= MII_M1011_PHY_SCR_AUTO_CROSS;
263 break;
264 }
265
266 if (val != reg) {
267 /* Set the new polarity value in the register */
268 err = phy_write(phydev, MII_M1011_PHY_SCR, val);
269 if (err)
270 return err;
271 }
272
273 return val != reg;
274}
275
276static int marvell_set_downshift(struct phy_device *phydev, bool enable,
277 u8 retries)
278{
279 int reg;
280
281 reg = phy_read(phydev, MII_M1011_PHY_SCR);
282 if (reg < 0)
283 return reg;
284
285 reg &= MII_M1011_PHY_SRC_DOWNSHIFT_MASK;
286 reg |= ((retries - 1) << MII_M1011_PHY_SCR_DOWNSHIFT_SHIFT);
287 if (enable)
288 reg |= MII_M1011_PHY_SCR_DOWNSHIFT_EN;
289
290 return phy_write(phydev, MII_M1011_PHY_SCR, reg);
291}
292
293static int marvell_config_aneg(struct phy_device *phydev)
294{
295 int changed = 0;
296 int err;
297
298 err = marvell_set_polarity(phydev, phydev->mdix_ctrl);
299 if (err < 0)
300 return err;
301
302 changed = err;
303
304 err = phy_write(phydev, MII_M1111_PHY_LED_CONTROL,
305 MII_M1111_PHY_LED_DIRECT);
306 if (err < 0)
307 return err;
308
309 err = genphy_config_aneg(phydev);
310 if (err < 0)
311 return err;
312
313 if (phydev->autoneg != AUTONEG_ENABLE || changed) {
314 /* A write to speed/duplex bits (that is performed by
315 * genphy_config_aneg() call above) must be followed by
316 * a software reset. Otherwise, the write has no effect.
317 */
318 err = genphy_soft_reset(phydev);
319 if (err < 0)
320 return err;
321 }
322
323 return 0;
324}
325
326static int m88e1101_config_aneg(struct phy_device *phydev)
327{
328 int err;
329
330 /* This Marvell PHY has an errata which requires
331 * that certain registers get written in order
332 * to restart autonegotiation
333 */
334 err = genphy_soft_reset(phydev);
335 if (err < 0)
336 return err;
337
338 err = phy_write(phydev, 0x1d, 0x1f);
339 if (err < 0)
340 return err;
341
342 err = phy_write(phydev, 0x1e, 0x200c);
343 if (err < 0)
344 return err;
345
346 err = phy_write(phydev, 0x1d, 0x5);
347 if (err < 0)
348 return err;
349
350 err = phy_write(phydev, 0x1e, 0);
351 if (err < 0)
352 return err;
353
354 err = phy_write(phydev, 0x1e, 0x100);
355 if (err < 0)
356 return err;
357
358 return marvell_config_aneg(phydev);
359}
360
361#ifdef CONFIG_OF_MDIO
362/* Set and/or override some configuration registers based on the
363 * marvell,reg-init property stored in the of_node for the phydev.
364 *
365 * marvell,reg-init = <reg-page reg mask value>,...;
366 *
367 * There may be one or more sets of <reg-page reg mask value>:
368 *
369 * reg-page: which register bank to use.
370 * reg: the register.
371 * mask: if non-zero, ANDed with existing register value.
372 * value: ORed with the masked value and written to the regiser.
373 *
374 */
375static int marvell_of_reg_init(struct phy_device *phydev)
376{
377 const __be32 *paddr;
378 int len, i, saved_page, current_page, ret = 0;
379
380 if (!phydev->mdio.dev.of_node)
381 return 0;
382
383 paddr = of_get_property(phydev->mdio.dev.of_node,
384 "marvell,reg-init", &len);
385 if (!paddr || len < (4 * sizeof(*paddr)))
386 return 0;
387
388 saved_page = phy_save_page(phydev);
389 if (saved_page < 0)
390 goto err;
391 current_page = saved_page;
392
393 len /= sizeof(*paddr);
394 for (i = 0; i < len - 3; i += 4) {
395 u16 page = be32_to_cpup(paddr + i);
396 u16 reg = be32_to_cpup(paddr + i + 1);
397 u16 mask = be32_to_cpup(paddr + i + 2);
398 u16 val_bits = be32_to_cpup(paddr + i + 3);
399 int val;
400
401 if (page != current_page) {
402 current_page = page;
403 ret = marvell_write_page(phydev, page);
404 if (ret < 0)
405 goto err;
406 }
407
408 val = 0;
409 if (mask) {
410 val = __phy_read(phydev, reg);
411 if (val < 0) {
412 ret = val;
413 goto err;
414 }
415 val &= mask;
416 }
417 val |= val_bits;
418
419 ret = __phy_write(phydev, reg, val);
420 if (ret < 0)
421 goto err;
422 }
423err:
424 return phy_restore_page(phydev, saved_page, ret);
425}
426#else
427static int marvell_of_reg_init(struct phy_device *phydev)
428{
429 return 0;
430}
431#endif /* CONFIG_OF_MDIO */
432
433static int m88e1121_config_aneg_rgmii_delays(struct phy_device *phydev)
434{
435 int mscr;
436
437 if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID)
438 mscr = MII_88E1121_PHY_MSCR_RX_DELAY |
439 MII_88E1121_PHY_MSCR_TX_DELAY;
440 else if (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID)
441 mscr = MII_88E1121_PHY_MSCR_RX_DELAY;
442 else if (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID)
443 mscr = MII_88E1121_PHY_MSCR_TX_DELAY;
444 else
445 mscr = 0;
446
447 return phy_modify_paged(phydev, MII_MARVELL_MSCR_PAGE,
448 MII_88E1121_PHY_MSCR_REG,
449 MII_88E1121_PHY_MSCR_DELAY_MASK, mscr);
450}
451
452static int m88e1121_config_aneg(struct phy_device *phydev)
453{
454 int changed = 0;
455 int err = 0;
456
457 if (phy_interface_is_rgmii(phydev)) {
458 err = m88e1121_config_aneg_rgmii_delays(phydev);
459 if (err < 0)
460 return err;
461 }
462
463 err = marvell_set_polarity(phydev, phydev->mdix_ctrl);
464 if (err < 0)
465 return err;
466
467 changed = err;
468
469 err = genphy_config_aneg(phydev);
470 if (err < 0)
471 return err;
472
473 if (phydev->autoneg != AUTONEG_ENABLE || changed) {
474 /* A software reset is used to ensure a "commit" of the
475 * changes is done.
476 */
477 err = genphy_soft_reset(phydev);
478 if (err < 0)
479 return err;
480 }
481
482 return 0;
483}
484
485static int m88e1318_config_aneg(struct phy_device *phydev)
486{
487 int err;
488
489 err = phy_modify_paged(phydev, MII_MARVELL_MSCR_PAGE,
490 MII_88E1318S_PHY_MSCR1_REG,
491 0, MII_88E1318S_PHY_MSCR1_PAD_ODD);
492 if (err < 0)
493 return err;
494
495 return m88e1121_config_aneg(phydev);
496}
497
498/**
499 * linkmode_adv_to_fiber_adv_t
500 * @advertise: the linkmode advertisement settings
501 *
502 * A small helper function that translates linkmode advertisement
503 * settings to phy autonegotiation advertisements for the MII_ADV
504 * register for fiber link.
505 */
506static inline u32 linkmode_adv_to_fiber_adv_t(unsigned long *advertise)
507{
508 u32 result = 0;
509
510 if (linkmode_test_bit(ETHTOOL_LINK_MODE_1000baseT_Half_BIT, advertise))
511 result |= ADVERTISE_FIBER_1000HALF;
512 if (linkmode_test_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT, advertise))
513 result |= ADVERTISE_FIBER_1000FULL;
514
515 if (linkmode_test_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, advertise) &&
516 linkmode_test_bit(ETHTOOL_LINK_MODE_Pause_BIT, advertise))
517 result |= LPA_PAUSE_ASYM_FIBER;
518 else if (linkmode_test_bit(ETHTOOL_LINK_MODE_Pause_BIT, advertise))
519 result |= (ADVERTISE_PAUSE_FIBER
520 & (~ADVERTISE_PAUSE_ASYM_FIBER));
521
522 return result;
523}
524
525/**
526 * marvell_config_aneg_fiber - restart auto-negotiation or write BMCR
527 * @phydev: target phy_device struct
528 *
529 * Description: If auto-negotiation is enabled, we configure the
530 * advertising, and then restart auto-negotiation. If it is not
531 * enabled, then we write the BMCR. Adapted for fiber link in
532 * some Marvell's devices.
533 */
534static int marvell_config_aneg_fiber(struct phy_device *phydev)
535{
536 int changed = 0;
537 int err;
538 int adv, oldadv;
539
540 if (phydev->autoneg != AUTONEG_ENABLE)
541 return genphy_setup_forced(phydev);
542
543 /* Only allow advertising what this PHY supports */
544 linkmode_and(phydev->advertising, phydev->advertising,
545 phydev->supported);
546
547 /* Setup fiber advertisement */
548 adv = phy_read(phydev, MII_ADVERTISE);
549 if (adv < 0)
550 return adv;
551
552 oldadv = adv;
553 adv &= ~(ADVERTISE_FIBER_1000HALF | ADVERTISE_FIBER_1000FULL
554 | LPA_PAUSE_FIBER);
555 adv |= linkmode_adv_to_fiber_adv_t(phydev->advertising);
556
557 if (adv != oldadv) {
558 err = phy_write(phydev, MII_ADVERTISE, adv);
559 if (err < 0)
560 return err;
561
562 changed = 1;
563 }
564
565 if (changed == 0) {
566 /* Advertisement hasn't changed, but maybe aneg was never on to
567 * begin with? Or maybe phy was isolated?
568 */
569 int ctl = phy_read(phydev, MII_BMCR);
570
571 if (ctl < 0)
572 return ctl;
573
574 if (!(ctl & BMCR_ANENABLE) || (ctl & BMCR_ISOLATE))
575 changed = 1; /* do restart aneg */
576 }
577
578 /* Only restart aneg if we are advertising something different
579 * than we were before.
580 */
581 if (changed > 0)
582 changed = genphy_restart_aneg(phydev);
583
584 return changed;
585}
586
587static int m88e1510_config_aneg(struct phy_device *phydev)
588{
589 int err;
590
591 err = marvell_set_page(phydev, MII_MARVELL_COPPER_PAGE);
592 if (err < 0)
593 goto error;
594
595 /* Configure the copper link first */
596 err = m88e1318_config_aneg(phydev);
597 if (err < 0)
598 goto error;
599
600 /* Do not touch the fiber page if we're in copper->sgmii mode */
601 if (phydev->interface == PHY_INTERFACE_MODE_SGMII)
602 return 0;
603
604 /* Then the fiber link */
605 err = marvell_set_page(phydev, MII_MARVELL_FIBER_PAGE);
606 if (err < 0)
607 goto error;
608
609 err = marvell_config_aneg_fiber(phydev);
610 if (err < 0)
611 goto error;
612
613 return marvell_set_page(phydev, MII_MARVELL_COPPER_PAGE);
614
615error:
616 marvell_set_page(phydev, MII_MARVELL_COPPER_PAGE);
617 return err;
618}
619
620static void marvell_config_led(struct phy_device *phydev)
621{
622 u16 def_config;
623 int err;
624
625 switch (MARVELL_PHY_FAMILY_ID(phydev->phy_id)) {
626 /* Default PHY LED config: LED[0] .. Link, LED[1] .. Activity */
627 case MARVELL_PHY_FAMILY_ID(MARVELL_PHY_ID_88E1121R):
628 case MARVELL_PHY_FAMILY_ID(MARVELL_PHY_ID_88E1318S):
629 def_config = MII_88E1121_PHY_LED_DEF;
630 break;
631 /* Default PHY LED config:
632 * LED[0] .. 1000Mbps Link
633 * LED[1] .. 100Mbps Link
634 * LED[2] .. Blink, Activity
635 */
636 case MARVELL_PHY_FAMILY_ID(MARVELL_PHY_ID_88E1510):
637 if (phydev->dev_flags & MARVELL_PHY_LED0_LINK_LED1_ACTIVE)
638 def_config = MII_88E1510_PHY_LED0_LINK_LED1_ACTIVE;
639 else
640 def_config = MII_88E1510_PHY_LED_DEF;
641 break;
642 default:
643 return;
644 }
645
646 err = phy_write_paged(phydev, MII_MARVELL_LED_PAGE, MII_PHY_LED_CTRL,
647 def_config);
648 if (err < 0)
649 phydev_warn(phydev, "Fail to config marvell phy LED.\n");
650}
651
652static int marvell_config_init(struct phy_device *phydev)
653{
654 /* Set defalut LED */
655 marvell_config_led(phydev);
656
657 /* Set registers from marvell,reg-init DT property */
658 return marvell_of_reg_init(phydev);
659}
660
661static int m88e1116r_config_init(struct phy_device *phydev)
662{
663 int err;
664
665 err = genphy_soft_reset(phydev);
666 if (err < 0)
667 return err;
668
669 msleep(500);
670
671 err = marvell_set_page(phydev, MII_MARVELL_COPPER_PAGE);
672 if (err < 0)
673 return err;
674
675 err = marvell_set_polarity(phydev, phydev->mdix_ctrl);
676 if (err < 0)
677 return err;
678
679 err = marvell_set_downshift(phydev, true, 8);
680 if (err < 0)
681 return err;
682
683 if (phy_interface_is_rgmii(phydev)) {
684 err = m88e1121_config_aneg_rgmii_delays(phydev);
685 if (err < 0)
686 return err;
687 }
688
689 err = genphy_soft_reset(phydev);
690 if (err < 0)
691 return err;
692
693 return marvell_config_init(phydev);
694}
695
696static int m88e3016_config_init(struct phy_device *phydev)
697{
698 int ret;
699
700 /* Enable Scrambler and Auto-Crossover */
701 ret = phy_modify(phydev, MII_88E3016_PHY_SPEC_CTRL,
702 MII_88E3016_DISABLE_SCRAMBLER,
703 MII_88E3016_AUTO_MDIX_CROSSOVER);
704 if (ret < 0)
705 return ret;
706
707 return marvell_config_init(phydev);
708}
709
710static int m88e1111_config_init_hwcfg_mode(struct phy_device *phydev,
711 u16 mode,
712 int fibre_copper_auto)
713{
714 if (fibre_copper_auto)
715 mode |= MII_M1111_HWCFG_FIBER_COPPER_AUTO;
716
717 return phy_modify(phydev, MII_M1111_PHY_EXT_SR,
718 MII_M1111_HWCFG_MODE_MASK |
719 MII_M1111_HWCFG_FIBER_COPPER_AUTO |
720 MII_M1111_HWCFG_FIBER_COPPER_RES,
721 mode);
722}
723
724static int m88e1111_config_init_rgmii_delays(struct phy_device *phydev)
725{
726 int delay;
727
728 if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) {
729 delay = MII_M1111_RGMII_RX_DELAY | MII_M1111_RGMII_TX_DELAY;
730 } else if (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) {
731 delay = MII_M1111_RGMII_RX_DELAY;
732 } else if (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID) {
733 delay = MII_M1111_RGMII_TX_DELAY;
734 } else {
735 delay = 0;
736 }
737
738 return phy_modify(phydev, MII_M1111_PHY_EXT_CR,
739 MII_M1111_RGMII_RX_DELAY | MII_M1111_RGMII_TX_DELAY,
740 delay);
741}
742
743static int m88e1111_config_init_rgmii(struct phy_device *phydev)
744{
745 int temp;
746 int err;
747
748 err = m88e1111_config_init_rgmii_delays(phydev);
749 if (err < 0)
750 return err;
751
752 temp = phy_read(phydev, MII_M1111_PHY_EXT_SR);
753 if (temp < 0)
754 return temp;
755
756 temp &= ~(MII_M1111_HWCFG_MODE_MASK);
757
758 if (temp & MII_M1111_HWCFG_FIBER_COPPER_RES)
759 temp |= MII_M1111_HWCFG_MODE_FIBER_RGMII;
760 else
761 temp |= MII_M1111_HWCFG_MODE_COPPER_RGMII;
762
763 return phy_write(phydev, MII_M1111_PHY_EXT_SR, temp);
764}
765
766static int m88e1111_config_init_sgmii(struct phy_device *phydev)
767{
768 int err;
769
770 err = m88e1111_config_init_hwcfg_mode(
771 phydev,
772 MII_M1111_HWCFG_MODE_SGMII_NO_CLK,
773 MII_M1111_HWCFG_FIBER_COPPER_AUTO);
774 if (err < 0)
775 return err;
776
777 /* make sure copper is selected */
778 return marvell_set_page(phydev, MII_MARVELL_COPPER_PAGE);
779}
780
781static int m88e1111_config_init_rtbi(struct phy_device *phydev)
782{
783 int err;
784
785 err = m88e1111_config_init_rgmii_delays(phydev);
786 if (err < 0)
787 return err;
788
789 err = m88e1111_config_init_hwcfg_mode(
790 phydev,
791 MII_M1111_HWCFG_MODE_RTBI,
792 MII_M1111_HWCFG_FIBER_COPPER_AUTO);
793 if (err < 0)
794 return err;
795
796 /* soft reset */
797 err = genphy_soft_reset(phydev);
798 if (err < 0)
799 return err;
800
801 return m88e1111_config_init_hwcfg_mode(
802 phydev,
803 MII_M1111_HWCFG_MODE_RTBI,
804 MII_M1111_HWCFG_FIBER_COPPER_AUTO);
805}
806
807static int m88e1111_config_init(struct phy_device *phydev)
808{
809 int err;
810
811 if (phy_interface_is_rgmii(phydev)) {
812 err = m88e1111_config_init_rgmii(phydev);
813 if (err < 0)
814 return err;
815 }
816
817 if (phydev->interface == PHY_INTERFACE_MODE_SGMII) {
818 err = m88e1111_config_init_sgmii(phydev);
819 if (err < 0)
820 return err;
821 }
822
823 if (phydev->interface == PHY_INTERFACE_MODE_RTBI) {
824 err = m88e1111_config_init_rtbi(phydev);
825 if (err < 0)
826 return err;
827 }
828
829 err = marvell_of_reg_init(phydev);
830 if (err < 0)
831 return err;
832
833 return genphy_soft_reset(phydev);
834}
835
836static int m88e1318_config_init(struct phy_device *phydev)
837{
838 if (phy_interrupt_is_valid(phydev)) {
839 int err = phy_modify_paged(
840 phydev, MII_MARVELL_LED_PAGE,
841 MII_88E1318S_PHY_LED_TCR,
842 MII_88E1318S_PHY_LED_TCR_FORCE_INT,
843 MII_88E1318S_PHY_LED_TCR_INTn_ENABLE |
844 MII_88E1318S_PHY_LED_TCR_INT_ACTIVE_LOW);
845 if (err < 0)
846 return err;
847 }
848
849 return marvell_config_init(phydev);
850}
851
852static int m88e1510_config_init(struct phy_device *phydev)
853{
854 int err;
855
856 /* SGMII-to-Copper mode initialization */
857 if (phydev->interface == PHY_INTERFACE_MODE_SGMII) {
858 /* Select page 18 */
859 err = marvell_set_page(phydev, 18);
860 if (err < 0)
861 return err;
862
863 /* In reg 20, write MODE[2:0] = 0x1 (SGMII to Copper) */
864 err = phy_modify(phydev, MII_88E1510_GEN_CTRL_REG_1,
865 MII_88E1510_GEN_CTRL_REG_1_MODE_MASK,
866 MII_88E1510_GEN_CTRL_REG_1_MODE_SGMII);
867 if (err < 0)
868 return err;
869
870 /* PHY reset is necessary after changing MODE[2:0] */
871 err = phy_modify(phydev, MII_88E1510_GEN_CTRL_REG_1, 0,
872 MII_88E1510_GEN_CTRL_REG_1_RESET);
873 if (err < 0)
874 return err;
875
876 /* Reset page selection */
877 err = marvell_set_page(phydev, MII_MARVELL_COPPER_PAGE);
878 if (err < 0)
879 return err;
880 }
881
882 return m88e1318_config_init(phydev);
883}
884
885static int m88e1118_config_aneg(struct phy_device *phydev)
886{
887 int err;
888
889 err = genphy_soft_reset(phydev);
890 if (err < 0)
891 return err;
892
893 err = marvell_set_polarity(phydev, phydev->mdix_ctrl);
894 if (err < 0)
895 return err;
896
897 err = genphy_config_aneg(phydev);
898 return 0;
899}
900
901static int m88e1118_config_init(struct phy_device *phydev)
902{
903 int err;
904
905 /* Change address */
906 err = marvell_set_page(phydev, MII_MARVELL_MSCR_PAGE);
907 if (err < 0)
908 return err;
909
910 /* Enable 1000 Mbit */
911 err = phy_write(phydev, 0x15, 0x1070);
912 if (err < 0)
913 return err;
914
915 /* Change address */
916 err = marvell_set_page(phydev, MII_MARVELL_LED_PAGE);
917 if (err < 0)
918 return err;
919
920 /* Adjust LED Control */
921 if (phydev->dev_flags & MARVELL_PHY_M1118_DNS323_LEDS)
922 err = phy_write(phydev, 0x10, 0x1100);
923 else
924 err = phy_write(phydev, 0x10, 0x021e);
925 if (err < 0)
926 return err;
927
928 err = marvell_of_reg_init(phydev);
929 if (err < 0)
930 return err;
931
932 /* Reset address */
933 err = marvell_set_page(phydev, MII_MARVELL_COPPER_PAGE);
934 if (err < 0)
935 return err;
936
937 return genphy_soft_reset(phydev);
938}
939
940static int m88e1149_config_init(struct phy_device *phydev)
941{
942 int err;
943
944 /* Change address */
945 err = marvell_set_page(phydev, MII_MARVELL_MSCR_PAGE);
946 if (err < 0)
947 return err;
948
949 /* Enable 1000 Mbit */
950 err = phy_write(phydev, 0x15, 0x1048);
951 if (err < 0)
952 return err;
953
954 err = marvell_of_reg_init(phydev);
955 if (err < 0)
956 return err;
957
958 /* Reset address */
959 err = marvell_set_page(phydev, MII_MARVELL_COPPER_PAGE);
960 if (err < 0)
961 return err;
962
963 return genphy_soft_reset(phydev);
964}
965
966static int m88e1145_config_init_rgmii(struct phy_device *phydev)
967{
968 int err;
969
970 err = m88e1111_config_init_rgmii_delays(phydev);
971 if (err < 0)
972 return err;
973
974 if (phydev->dev_flags & MARVELL_PHY_M1145_FLAGS_RESISTANCE) {
975 err = phy_write(phydev, 0x1d, 0x0012);
976 if (err < 0)
977 return err;
978
979 err = phy_modify(phydev, 0x1e, 0x0fc0,
980 2 << 9 | /* 36 ohm */
981 2 << 6); /* 39 ohm */
982 if (err < 0)
983 return err;
984
985 err = phy_write(phydev, 0x1d, 0x3);
986 if (err < 0)
987 return err;
988
989 err = phy_write(phydev, 0x1e, 0x8000);
990 }
991 return err;
992}
993
994static int m88e1145_config_init_sgmii(struct phy_device *phydev)
995{
996 return m88e1111_config_init_hwcfg_mode(
997 phydev, MII_M1111_HWCFG_MODE_SGMII_NO_CLK,
998 MII_M1111_HWCFG_FIBER_COPPER_AUTO);
999}
1000
1001static int m88e1145_config_init(struct phy_device *phydev)
1002{
1003 int err;
1004
1005 /* Take care of errata E0 & E1 */
1006 err = phy_write(phydev, 0x1d, 0x001b);
1007 if (err < 0)
1008 return err;
1009
1010 err = phy_write(phydev, 0x1e, 0x418f);
1011 if (err < 0)
1012 return err;
1013
1014 err = phy_write(phydev, 0x1d, 0x0016);
1015 if (err < 0)
1016 return err;
1017
1018 err = phy_write(phydev, 0x1e, 0xa2da);
1019 if (err < 0)
1020 return err;
1021
1022 if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) {
1023 err = m88e1145_config_init_rgmii(phydev);
1024 if (err < 0)
1025 return err;
1026 }
1027
1028 if (phydev->interface == PHY_INTERFACE_MODE_SGMII) {
1029 err = m88e1145_config_init_sgmii(phydev);
1030 if (err < 0)
1031 return err;
1032 }
1033
1034 err = marvell_of_reg_init(phydev);
1035 if (err < 0)
1036 return err;
1037
1038 return 0;
1039}
1040
1041static int m88e1540_get_fld(struct phy_device *phydev, u8 *msecs)
1042{
1043 int val;
1044
1045 val = phy_read(phydev, MII_88E1540_COPPER_CTRL3);
1046 if (val < 0)
1047 return val;
1048
1049 if (!(val & MII_88E1540_COPPER_CTRL3_FAST_LINK_DOWN)) {
1050 *msecs = ETHTOOL_PHY_FAST_LINK_DOWN_OFF;
1051 return 0;
1052 }
1053
1054 val = FIELD_GET(MII_88E1540_COPPER_CTRL3_LINK_DOWN_DELAY_MASK, val);
1055
1056 switch (val) {
1057 case MII_88E1540_COPPER_CTRL3_LINK_DOWN_DELAY_00MS:
1058 *msecs = 0;
1059 break;
1060 case MII_88E1540_COPPER_CTRL3_LINK_DOWN_DELAY_10MS:
1061 *msecs = 10;
1062 break;
1063 case MII_88E1540_COPPER_CTRL3_LINK_DOWN_DELAY_20MS:
1064 *msecs = 20;
1065 break;
1066 case MII_88E1540_COPPER_CTRL3_LINK_DOWN_DELAY_40MS:
1067 *msecs = 40;
1068 break;
1069 default:
1070 return -EINVAL;
1071 }
1072
1073 return 0;
1074}
1075
1076static int m88e1540_set_fld(struct phy_device *phydev, const u8 *msecs)
1077{
1078 struct ethtool_eee eee;
1079 int val, ret;
1080
1081 if (*msecs == ETHTOOL_PHY_FAST_LINK_DOWN_OFF)
1082 return phy_clear_bits(phydev, MII_88E1540_COPPER_CTRL3,
1083 MII_88E1540_COPPER_CTRL3_FAST_LINK_DOWN);
1084
1085 /* According to the Marvell data sheet EEE must be disabled for
1086 * Fast Link Down detection to work properly
1087 */
1088 ret = phy_ethtool_get_eee(phydev, &eee);
1089 if (!ret && eee.eee_enabled) {
1090 phydev_warn(phydev, "Fast Link Down detection requires EEE to be disabled!\n");
1091 return -EBUSY;
1092 }
1093
1094 if (*msecs <= 5)
1095 val = MII_88E1540_COPPER_CTRL3_LINK_DOWN_DELAY_00MS;
1096 else if (*msecs <= 15)
1097 val = MII_88E1540_COPPER_CTRL3_LINK_DOWN_DELAY_10MS;
1098 else if (*msecs <= 30)
1099 val = MII_88E1540_COPPER_CTRL3_LINK_DOWN_DELAY_20MS;
1100 else
1101 val = MII_88E1540_COPPER_CTRL3_LINK_DOWN_DELAY_40MS;
1102
1103 val = FIELD_PREP(MII_88E1540_COPPER_CTRL3_LINK_DOWN_DELAY_MASK, val);
1104
1105 ret = phy_modify(phydev, MII_88E1540_COPPER_CTRL3,
1106 MII_88E1540_COPPER_CTRL3_LINK_DOWN_DELAY_MASK, val);
1107 if (ret)
1108 return ret;
1109
1110 return phy_set_bits(phydev, MII_88E1540_COPPER_CTRL3,
1111 MII_88E1540_COPPER_CTRL3_FAST_LINK_DOWN);
1112}
1113
1114static int m88e1540_get_tunable(struct phy_device *phydev,
1115 struct ethtool_tunable *tuna, void *data)
1116{
1117 switch (tuna->id) {
1118 case ETHTOOL_PHY_FAST_LINK_DOWN:
1119 return m88e1540_get_fld(phydev, data);
1120 default:
1121 return -EOPNOTSUPP;
1122 }
1123}
1124
1125static int m88e1540_set_tunable(struct phy_device *phydev,
1126 struct ethtool_tunable *tuna, const void *data)
1127{
1128 switch (tuna->id) {
1129 case ETHTOOL_PHY_FAST_LINK_DOWN:
1130 return m88e1540_set_fld(phydev, data);
1131 default:
1132 return -EOPNOTSUPP;
1133 }
1134}
1135
1136/* The VOD can be out of specification on link up. Poke an
1137 * undocumented register, in an undocumented page, with a magic value
1138 * to fix this.
1139 */
1140static int m88e6390_errata(struct phy_device *phydev)
1141{
1142 int err;
1143
1144 err = phy_write(phydev, MII_BMCR,
1145 BMCR_ANENABLE | BMCR_SPEED1000 | BMCR_FULLDPLX);
1146 if (err)
1147 return err;
1148
1149 usleep_range(300, 400);
1150
1151 err = phy_write_paged(phydev, 0xf8, 0x08, 0x36);
1152 if (err)
1153 return err;
1154
1155 return genphy_soft_reset(phydev);
1156}
1157
1158static int m88e6390_config_aneg(struct phy_device *phydev)
1159{
1160 int err;
1161
1162 err = m88e6390_errata(phydev);
1163 if (err)
1164 return err;
1165
1166 return m88e1510_config_aneg(phydev);
1167}
1168
1169/**
1170 * fiber_lpa_mod_linkmode_lpa_t
1171 * @advertising: the linkmode advertisement settings
1172 * @lpa: value of the MII_LPA register for fiber link
1173 *
1174 * A small helper function that translates MII_LPA bits to linkmode LP
1175 * advertisement settings. Other bits in advertising are left
1176 * unchanged.
1177 */
1178static void fiber_lpa_mod_linkmode_lpa_t(unsigned long *advertising, u32 lpa)
1179{
1180 linkmode_mod_bit(ETHTOOL_LINK_MODE_1000baseT_Half_BIT,
1181 advertising, lpa & LPA_FIBER_1000HALF);
1182
1183 linkmode_mod_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT,
1184 advertising, lpa & LPA_FIBER_1000FULL);
1185}
1186
1187/**
1188 * marvell_update_link - update link status in real time in @phydev
1189 * @phydev: target phy_device struct
1190 *
1191 * Description: Update the value in phydev->link to reflect the
1192 * current link value.
1193 */
1194static int marvell_update_link(struct phy_device *phydev, int fiber)
1195{
1196 int status;
1197
1198 /* Use the generic register for copper link, or specific
1199 * register for fiber case
1200 */
1201 if (fiber) {
1202 status = phy_read(phydev, MII_M1011_PHY_STATUS);
1203 if (status < 0)
1204 return status;
1205
1206 if ((status & REGISTER_LINK_STATUS) == 0)
1207 phydev->link = 0;
1208 else
1209 phydev->link = 1;
1210 } else {
1211 return genphy_update_link(phydev);
1212 }
1213
1214 return 0;
1215}
1216
1217static int marvell_read_status_page_an(struct phy_device *phydev,
1218 int fiber)
1219{
1220 int status;
1221 int lpa;
1222 int lpagb;
1223
1224 status = phy_read(phydev, MII_M1011_PHY_STATUS);
1225 if (status < 0)
1226 return status;
1227
1228 lpa = phy_read(phydev, MII_LPA);
1229 if (lpa < 0)
1230 return lpa;
1231
1232 lpagb = phy_read(phydev, MII_STAT1000);
1233 if (lpagb < 0)
1234 return lpagb;
1235
1236 if (status & MII_M1011_PHY_STATUS_FULLDUPLEX)
1237 phydev->duplex = DUPLEX_FULL;
1238 else
1239 phydev->duplex = DUPLEX_HALF;
1240
1241 status = status & MII_M1011_PHY_STATUS_SPD_MASK;
1242 phydev->pause = 0;
1243 phydev->asym_pause = 0;
1244
1245 switch (status) {
1246 case MII_M1011_PHY_STATUS_1000:
1247 phydev->speed = SPEED_1000;
1248 break;
1249
1250 case MII_M1011_PHY_STATUS_100:
1251 phydev->speed = SPEED_100;
1252 break;
1253
1254 default:
1255 phydev->speed = SPEED_10;
1256 break;
1257 }
1258
1259 if (!fiber) {
1260 mii_lpa_to_linkmode_lpa_t(phydev->lp_advertising, lpa);
1261 mii_stat1000_mod_linkmode_lpa_t(phydev->lp_advertising, lpagb);
1262
1263 if (phydev->duplex == DUPLEX_FULL) {
1264 phydev->pause = lpa & LPA_PAUSE_CAP ? 1 : 0;
1265 phydev->asym_pause = lpa & LPA_PAUSE_ASYM ? 1 : 0;
1266 }
1267 } else {
1268 /* The fiber link is only 1000M capable */
1269 fiber_lpa_mod_linkmode_lpa_t(phydev->lp_advertising, lpa);
1270
1271 if (phydev->duplex == DUPLEX_FULL) {
1272 if (!(lpa & LPA_PAUSE_FIBER)) {
1273 phydev->pause = 0;
1274 phydev->asym_pause = 0;
1275 } else if ((lpa & LPA_PAUSE_ASYM_FIBER)) {
1276 phydev->pause = 1;
1277 phydev->asym_pause = 1;
1278 } else {
1279 phydev->pause = 1;
1280 phydev->asym_pause = 0;
1281 }
1282 }
1283 }
1284 return 0;
1285}
1286
1287static int marvell_read_status_page_fixed(struct phy_device *phydev)
1288{
1289 int bmcr = phy_read(phydev, MII_BMCR);
1290
1291 if (bmcr < 0)
1292 return bmcr;
1293
1294 if (bmcr & BMCR_FULLDPLX)
1295 phydev->duplex = DUPLEX_FULL;
1296 else
1297 phydev->duplex = DUPLEX_HALF;
1298
1299 if (bmcr & BMCR_SPEED1000)
1300 phydev->speed = SPEED_1000;
1301 else if (bmcr & BMCR_SPEED100)
1302 phydev->speed = SPEED_100;
1303 else
1304 phydev->speed = SPEED_10;
1305
1306 phydev->pause = 0;
1307 phydev->asym_pause = 0;
1308 linkmode_zero(phydev->lp_advertising);
1309
1310 return 0;
1311}
1312
1313/* marvell_read_status_page
1314 *
1315 * Description:
1316 * Check the link, then figure out the current state
1317 * by comparing what we advertise with what the link partner
1318 * advertises. Start by checking the gigabit possibilities,
1319 * then move on to 10/100.
1320 */
1321static int marvell_read_status_page(struct phy_device *phydev, int page)
1322{
1323 int fiber;
1324 int err;
1325
1326 /* Detect and update the link, but return if there
1327 * was an error
1328 */
1329 if (page == MII_MARVELL_FIBER_PAGE)
1330 fiber = 1;
1331 else
1332 fiber = 0;
1333
1334 err = marvell_update_link(phydev, fiber);
1335 if (err)
1336 return err;
1337
1338 if (phydev->autoneg == AUTONEG_ENABLE)
1339 err = marvell_read_status_page_an(phydev, fiber);
1340 else
1341 err = marvell_read_status_page_fixed(phydev);
1342
1343 return err;
1344}
1345
1346/* marvell_read_status
1347 *
1348 * Some Marvell's phys have two modes: fiber and copper.
1349 * Both need status checked.
1350 * Description:
1351 * First, check the fiber link and status.
1352 * If the fiber link is down, check the copper link and status which
1353 * will be the default value if both link are down.
1354 */
1355static int marvell_read_status(struct phy_device *phydev)
1356{
1357 int err;
1358
1359 /* Check the fiber mode first */
1360 if (linkmode_test_bit(ETHTOOL_LINK_MODE_FIBRE_BIT,
1361 phydev->supported) &&
1362 phydev->interface != PHY_INTERFACE_MODE_SGMII) {
1363 err = marvell_set_page(phydev, MII_MARVELL_FIBER_PAGE);
1364 if (err < 0)
1365 goto error;
1366
1367 err = marvell_read_status_page(phydev, MII_MARVELL_FIBER_PAGE);
1368 if (err < 0)
1369 goto error;
1370
1371 /* If the fiber link is up, it is the selected and
1372 * used link. In this case, we need to stay in the
1373 * fiber page. Please to be careful about that, avoid
1374 * to restore Copper page in other functions which
1375 * could break the behaviour for some fiber phy like
1376 * 88E1512.
1377 */
1378 if (phydev->link)
1379 return 0;
1380
1381 /* If fiber link is down, check and save copper mode state */
1382 err = marvell_set_page(phydev, MII_MARVELL_COPPER_PAGE);
1383 if (err < 0)
1384 goto error;
1385 }
1386
1387 return marvell_read_status_page(phydev, MII_MARVELL_COPPER_PAGE);
1388
1389error:
1390 marvell_set_page(phydev, MII_MARVELL_COPPER_PAGE);
1391 return err;
1392}
1393
1394/* marvell_suspend
1395 *
1396 * Some Marvell's phys have two modes: fiber and copper.
1397 * Both need to be suspended
1398 */
1399static int marvell_suspend(struct phy_device *phydev)
1400{
1401 int err;
1402
1403 /* Suspend the fiber mode first */
1404 if (!linkmode_test_bit(ETHTOOL_LINK_MODE_FIBRE_BIT,
1405 phydev->supported)) {
1406 err = marvell_set_page(phydev, MII_MARVELL_FIBER_PAGE);
1407 if (err < 0)
1408 goto error;
1409
1410 /* With the page set, use the generic suspend */
1411 err = genphy_suspend(phydev);
1412 if (err < 0)
1413 goto error;
1414
1415 /* Then, the copper link */
1416 err = marvell_set_page(phydev, MII_MARVELL_COPPER_PAGE);
1417 if (err < 0)
1418 goto error;
1419 }
1420
1421 /* With the page set, use the generic suspend */
1422 return genphy_suspend(phydev);
1423
1424error:
1425 marvell_set_page(phydev, MII_MARVELL_COPPER_PAGE);
1426 return err;
1427}
1428
1429/* marvell_resume
1430 *
1431 * Some Marvell's phys have two modes: fiber and copper.
1432 * Both need to be resumed
1433 */
1434static int marvell_resume(struct phy_device *phydev)
1435{
1436 int err;
1437
1438 /* Resume the fiber mode first */
1439 if (!linkmode_test_bit(ETHTOOL_LINK_MODE_FIBRE_BIT,
1440 phydev->supported)) {
1441 err = marvell_set_page(phydev, MII_MARVELL_FIBER_PAGE);
1442 if (err < 0)
1443 goto error;
1444
1445 /* With the page set, use the generic resume */
1446 err = genphy_resume(phydev);
1447 if (err < 0)
1448 goto error;
1449
1450 /* Then, the copper link */
1451 err = marvell_set_page(phydev, MII_MARVELL_COPPER_PAGE);
1452 if (err < 0)
1453 goto error;
1454 }
1455
1456 /* With the page set, use the generic resume */
1457 return genphy_resume(phydev);
1458
1459error:
1460 marvell_set_page(phydev, MII_MARVELL_COPPER_PAGE);
1461 return err;
1462}
1463
1464static int marvell_aneg_done(struct phy_device *phydev)
1465{
1466 int retval = phy_read(phydev, MII_M1011_PHY_STATUS);
1467
1468 return (retval < 0) ? retval : (retval & MII_M1011_PHY_STATUS_RESOLVED);
1469}
1470
1471static int m88e1121_did_interrupt(struct phy_device *phydev)
1472{
1473 int imask;
1474
1475 imask = phy_read(phydev, MII_M1011_IEVENT);
1476
1477 if (imask & MII_M1011_IMASK_INIT)
1478 return 1;
1479
1480 return 0;
1481}
1482
1483static void m88e1318_get_wol(struct phy_device *phydev,
1484 struct ethtool_wolinfo *wol)
1485{
1486 int oldpage, ret = 0;
1487
1488 wol->supported = WAKE_MAGIC;
1489 wol->wolopts = 0;
1490
1491 oldpage = phy_select_page(phydev, MII_MARVELL_WOL_PAGE);
1492 if (oldpage < 0)
1493 goto error;
1494
1495 ret = __phy_read(phydev, MII_88E1318S_PHY_WOL_CTRL);
1496 if (ret & MII_88E1318S_PHY_WOL_CTRL_MAGIC_PACKET_MATCH_ENABLE)
1497 wol->wolopts |= WAKE_MAGIC;
1498
1499error:
1500 phy_restore_page(phydev, oldpage, ret);
1501}
1502
1503static int m88e1318_set_wol(struct phy_device *phydev,
1504 struct ethtool_wolinfo *wol)
1505{
1506 int err = 0, oldpage;
1507
1508 oldpage = phy_save_page(phydev);
1509 if (oldpage < 0)
1510 goto error;
1511
1512 if (wol->wolopts & WAKE_MAGIC) {
1513 /* Explicitly switch to page 0x00, just to be sure */
1514 err = marvell_write_page(phydev, MII_MARVELL_COPPER_PAGE);
1515 if (err < 0)
1516 goto error;
1517
1518 /* If WOL event happened once, the LED[2] interrupt pin
1519 * will not be cleared unless we reading the interrupt status
1520 * register. If interrupts are in use, the normal interrupt
1521 * handling will clear the WOL event. Clear the WOL event
1522 * before enabling it if !phy_interrupt_is_valid()
1523 */
1524 if (!phy_interrupt_is_valid(phydev))
1525 __phy_read(phydev, MII_M1011_IEVENT);
1526
1527 /* Enable the WOL interrupt */
1528 err = __phy_modify(phydev, MII_88E1318S_PHY_CSIER, 0,
1529 MII_88E1318S_PHY_CSIER_WOL_EIE);
1530 if (err < 0)
1531 goto error;
1532
1533 err = marvell_write_page(phydev, MII_MARVELL_LED_PAGE);
1534 if (err < 0)
1535 goto error;
1536
1537 /* Setup LED[2] as interrupt pin (active low) */
1538 err = __phy_modify(phydev, MII_88E1318S_PHY_LED_TCR,
1539 MII_88E1318S_PHY_LED_TCR_FORCE_INT,
1540 MII_88E1318S_PHY_LED_TCR_INTn_ENABLE |
1541 MII_88E1318S_PHY_LED_TCR_INT_ACTIVE_LOW);
1542 if (err < 0)
1543 goto error;
1544
1545 err = marvell_write_page(phydev, MII_MARVELL_WOL_PAGE);
1546 if (err < 0)
1547 goto error;
1548
1549 /* Store the device address for the magic packet */
1550 err = __phy_write(phydev, MII_88E1318S_PHY_MAGIC_PACKET_WORD2,
1551 ((phydev->attached_dev->dev_addr[5] << 8) |
1552 phydev->attached_dev->dev_addr[4]));
1553 if (err < 0)
1554 goto error;
1555 err = __phy_write(phydev, MII_88E1318S_PHY_MAGIC_PACKET_WORD1,
1556 ((phydev->attached_dev->dev_addr[3] << 8) |
1557 phydev->attached_dev->dev_addr[2]));
1558 if (err < 0)
1559 goto error;
1560 err = __phy_write(phydev, MII_88E1318S_PHY_MAGIC_PACKET_WORD0,
1561 ((phydev->attached_dev->dev_addr[1] << 8) |
1562 phydev->attached_dev->dev_addr[0]));
1563 if (err < 0)
1564 goto error;
1565
1566 /* Clear WOL status and enable magic packet matching */
1567 err = __phy_modify(phydev, MII_88E1318S_PHY_WOL_CTRL, 0,
1568 MII_88E1318S_PHY_WOL_CTRL_CLEAR_WOL_STATUS |
1569 MII_88E1318S_PHY_WOL_CTRL_MAGIC_PACKET_MATCH_ENABLE);
1570 if (err < 0)
1571 goto error;
1572 } else {
1573 err = marvell_write_page(phydev, MII_MARVELL_WOL_PAGE);
1574 if (err < 0)
1575 goto error;
1576
1577 /* Clear WOL status and disable magic packet matching */
1578 err = __phy_modify(phydev, MII_88E1318S_PHY_WOL_CTRL,
1579 MII_88E1318S_PHY_WOL_CTRL_MAGIC_PACKET_MATCH_ENABLE,
1580 MII_88E1318S_PHY_WOL_CTRL_CLEAR_WOL_STATUS);
1581 if (err < 0)
1582 goto error;
1583 }
1584
1585error:
1586 return phy_restore_page(phydev, oldpage, err);
1587}
1588
1589static int marvell_get_sset_count(struct phy_device *phydev)
1590{
1591 if (linkmode_test_bit(ETHTOOL_LINK_MODE_FIBRE_BIT,
1592 phydev->supported))
1593 return ARRAY_SIZE(marvell_hw_stats);
1594 else
1595 return ARRAY_SIZE(marvell_hw_stats) - NB_FIBER_STATS;
1596}
1597
1598static void marvell_get_strings(struct phy_device *phydev, u8 *data)
1599{
1600 int count = marvell_get_sset_count(phydev);
1601 int i;
1602
1603 for (i = 0; i < count; i++) {
1604 strlcpy(data + i * ETH_GSTRING_LEN,
1605 marvell_hw_stats[i].string, ETH_GSTRING_LEN);
1606 }
1607}
1608
1609static u64 marvell_get_stat(struct phy_device *phydev, int i)
1610{
1611 struct marvell_hw_stat stat = marvell_hw_stats[i];
1612 struct marvell_priv *priv = phydev->priv;
1613 int val;
1614 u64 ret;
1615
1616 val = phy_read_paged(phydev, stat.page, stat.reg);
1617 if (val < 0) {
1618 ret = U64_MAX;
1619 } else {
1620 val = val & ((1 << stat.bits) - 1);
1621 priv->stats[i] += val;
1622 ret = priv->stats[i];
1623 }
1624
1625 return ret;
1626}
1627
1628static void marvell_get_stats(struct phy_device *phydev,
1629 struct ethtool_stats *stats, u64 *data)
1630{
1631 int count = marvell_get_sset_count(phydev);
1632 int i;
1633
1634 for (i = 0; i < count; i++)
1635 data[i] = marvell_get_stat(phydev, i);
1636}
1637
1638#ifdef CONFIG_HWMON
1639static int m88e1121_get_temp(struct phy_device *phydev, long *temp)
1640{
1641 int oldpage;
1642 int ret = 0;
1643 int val;
1644
1645 *temp = 0;
1646
1647 oldpage = phy_select_page(phydev, MII_MARVELL_MISC_TEST_PAGE);
1648 if (oldpage < 0)
1649 goto error;
1650
1651 /* Enable temperature sensor */
1652 ret = __phy_read(phydev, MII_88E1121_MISC_TEST);
1653 if (ret < 0)
1654 goto error;
1655
1656 ret = __phy_write(phydev, MII_88E1121_MISC_TEST,
1657 ret | MII_88E1121_MISC_TEST_TEMP_SENSOR_EN);
1658 if (ret < 0)
1659 goto error;
1660
1661 /* Wait for temperature to stabilize */
1662 usleep_range(10000, 12000);
1663
1664 val = __phy_read(phydev, MII_88E1121_MISC_TEST);
1665 if (val < 0) {
1666 ret = val;
1667 goto error;
1668 }
1669
1670 /* Disable temperature sensor */
1671 ret = __phy_write(phydev, MII_88E1121_MISC_TEST,
1672 ret & ~MII_88E1121_MISC_TEST_TEMP_SENSOR_EN);
1673 if (ret < 0)
1674 goto error;
1675
1676 *temp = ((val & MII_88E1121_MISC_TEST_TEMP_MASK) - 5) * 5000;
1677
1678error:
1679 return phy_restore_page(phydev, oldpage, ret);
1680}
1681
1682static int m88e1121_hwmon_read(struct device *dev,
1683 enum hwmon_sensor_types type,
1684 u32 attr, int channel, long *temp)
1685{
1686 struct phy_device *phydev = dev_get_drvdata(dev);
1687 int err;
1688
1689 switch (attr) {
1690 case hwmon_temp_input:
1691 err = m88e1121_get_temp(phydev, temp);
1692 break;
1693 default:
1694 return -EOPNOTSUPP;
1695 }
1696
1697 return err;
1698}
1699
1700static umode_t m88e1121_hwmon_is_visible(const void *data,
1701 enum hwmon_sensor_types type,
1702 u32 attr, int channel)
1703{
1704 if (type != hwmon_temp)
1705 return 0;
1706
1707 switch (attr) {
1708 case hwmon_temp_input:
1709 return 0444;
1710 default:
1711 return 0;
1712 }
1713}
1714
1715static u32 m88e1121_hwmon_chip_config[] = {
1716 HWMON_C_REGISTER_TZ,
1717 0
1718};
1719
1720static const struct hwmon_channel_info m88e1121_hwmon_chip = {
1721 .type = hwmon_chip,
1722 .config = m88e1121_hwmon_chip_config,
1723};
1724
1725static u32 m88e1121_hwmon_temp_config[] = {
1726 HWMON_T_INPUT,
1727 0
1728};
1729
1730static const struct hwmon_channel_info m88e1121_hwmon_temp = {
1731 .type = hwmon_temp,
1732 .config = m88e1121_hwmon_temp_config,
1733};
1734
1735static const struct hwmon_channel_info *m88e1121_hwmon_info[] = {
1736 &m88e1121_hwmon_chip,
1737 &m88e1121_hwmon_temp,
1738 NULL
1739};
1740
1741static const struct hwmon_ops m88e1121_hwmon_hwmon_ops = {
1742 .is_visible = m88e1121_hwmon_is_visible,
1743 .read = m88e1121_hwmon_read,
1744};
1745
1746static const struct hwmon_chip_info m88e1121_hwmon_chip_info = {
1747 .ops = &m88e1121_hwmon_hwmon_ops,
1748 .info = m88e1121_hwmon_info,
1749};
1750
1751static int m88e1510_get_temp(struct phy_device *phydev, long *temp)
1752{
1753 int ret;
1754
1755 *temp = 0;
1756
1757 ret = phy_read_paged(phydev, MII_MARVELL_MISC_TEST_PAGE,
1758 MII_88E1510_TEMP_SENSOR);
1759 if (ret < 0)
1760 return ret;
1761
1762 *temp = ((ret & MII_88E1510_TEMP_SENSOR_MASK) - 25) * 1000;
1763
1764 return 0;
1765}
1766
1767static int m88e1510_get_temp_critical(struct phy_device *phydev, long *temp)
1768{
1769 int ret;
1770
1771 *temp = 0;
1772
1773 ret = phy_read_paged(phydev, MII_MARVELL_MISC_TEST_PAGE,
1774 MII_88E1121_MISC_TEST);
1775 if (ret < 0)
1776 return ret;
1777
1778 *temp = (((ret & MII_88E1510_MISC_TEST_TEMP_THRESHOLD_MASK) >>
1779 MII_88E1510_MISC_TEST_TEMP_THRESHOLD_SHIFT) * 5) - 25;
1780 /* convert to mC */
1781 *temp *= 1000;
1782
1783 return 0;
1784}
1785
1786static int m88e1510_set_temp_critical(struct phy_device *phydev, long temp)
1787{
1788 temp = temp / 1000;
1789 temp = clamp_val(DIV_ROUND_CLOSEST(temp, 5) + 5, 0, 0x1f);
1790
1791 return phy_modify_paged(phydev, MII_MARVELL_MISC_TEST_PAGE,
1792 MII_88E1121_MISC_TEST,
1793 MII_88E1510_MISC_TEST_TEMP_THRESHOLD_MASK,
1794 temp << MII_88E1510_MISC_TEST_TEMP_THRESHOLD_SHIFT);
1795}
1796
1797static int m88e1510_get_temp_alarm(struct phy_device *phydev, long *alarm)
1798{
1799 int ret;
1800
1801 *alarm = false;
1802
1803 ret = phy_read_paged(phydev, MII_MARVELL_MISC_TEST_PAGE,
1804 MII_88E1121_MISC_TEST);
1805 if (ret < 0)
1806 return ret;
1807
1808 *alarm = !!(ret & MII_88E1510_MISC_TEST_TEMP_IRQ);
1809
1810 return 0;
1811}
1812
1813static int m88e1510_hwmon_read(struct device *dev,
1814 enum hwmon_sensor_types type,
1815 u32 attr, int channel, long *temp)
1816{
1817 struct phy_device *phydev = dev_get_drvdata(dev);
1818 int err;
1819
1820 switch (attr) {
1821 case hwmon_temp_input:
1822 err = m88e1510_get_temp(phydev, temp);
1823 break;
1824 case hwmon_temp_crit:
1825 err = m88e1510_get_temp_critical(phydev, temp);
1826 break;
1827 case hwmon_temp_max_alarm:
1828 err = m88e1510_get_temp_alarm(phydev, temp);
1829 break;
1830 default:
1831 return -EOPNOTSUPP;
1832 }
1833
1834 return err;
1835}
1836
1837static int m88e1510_hwmon_write(struct device *dev,
1838 enum hwmon_sensor_types type,
1839 u32 attr, int channel, long temp)
1840{
1841 struct phy_device *phydev = dev_get_drvdata(dev);
1842 int err;
1843
1844 switch (attr) {
1845 case hwmon_temp_crit:
1846 err = m88e1510_set_temp_critical(phydev, temp);
1847 break;
1848 default:
1849 return -EOPNOTSUPP;
1850 }
1851 return err;
1852}
1853
1854static umode_t m88e1510_hwmon_is_visible(const void *data,
1855 enum hwmon_sensor_types type,
1856 u32 attr, int channel)
1857{
1858 if (type != hwmon_temp)
1859 return 0;
1860
1861 switch (attr) {
1862 case hwmon_temp_input:
1863 case hwmon_temp_max_alarm:
1864 return 0444;
1865 case hwmon_temp_crit:
1866 return 0644;
1867 default:
1868 return 0;
1869 }
1870}
1871
1872static u32 m88e1510_hwmon_temp_config[] = {
1873 HWMON_T_INPUT | HWMON_T_CRIT | HWMON_T_MAX_ALARM,
1874 0
1875};
1876
1877static const struct hwmon_channel_info m88e1510_hwmon_temp = {
1878 .type = hwmon_temp,
1879 .config = m88e1510_hwmon_temp_config,
1880};
1881
1882static const struct hwmon_channel_info *m88e1510_hwmon_info[] = {
1883 &m88e1121_hwmon_chip,
1884 &m88e1510_hwmon_temp,
1885 NULL
1886};
1887
1888static const struct hwmon_ops m88e1510_hwmon_hwmon_ops = {
1889 .is_visible = m88e1510_hwmon_is_visible,
1890 .read = m88e1510_hwmon_read,
1891 .write = m88e1510_hwmon_write,
1892};
1893
1894static const struct hwmon_chip_info m88e1510_hwmon_chip_info = {
1895 .ops = &m88e1510_hwmon_hwmon_ops,
1896 .info = m88e1510_hwmon_info,
1897};
1898
1899static int m88e6390_get_temp(struct phy_device *phydev, long *temp)
1900{
1901 int sum = 0;
1902 int oldpage;
1903 int ret = 0;
1904 int i;
1905
1906 *temp = 0;
1907
1908 oldpage = phy_select_page(phydev, MII_MARVELL_MISC_TEST_PAGE);
1909 if (oldpage < 0)
1910 goto error;
1911
1912 /* Enable temperature sensor */
1913 ret = __phy_read(phydev, MII_88E6390_MISC_TEST);
1914 if (ret < 0)
1915 goto error;
1916
1917 ret = ret & ~MII_88E6390_MISC_TEST_SAMPLE_MASK;
1918 ret |= MII_88E6390_MISC_TEST_SAMPLE_ENABLE |
1919 MII_88E6390_MISC_TEST_SAMPLE_1S;
1920
1921 ret = __phy_write(phydev, MII_88E6390_MISC_TEST, ret);
1922 if (ret < 0)
1923 goto error;
1924
1925 /* Wait for temperature to stabilize */
1926 usleep_range(10000, 12000);
1927
1928 /* Reading the temperature sense has an errata. You need to read
1929 * a number of times and take an average.
1930 */
1931 for (i = 0; i < MII_88E6390_TEMP_SENSOR_SAMPLES; i++) {
1932 ret = __phy_read(phydev, MII_88E6390_TEMP_SENSOR);
1933 if (ret < 0)
1934 goto error;
1935 sum += ret & MII_88E6390_TEMP_SENSOR_MASK;
1936 }
1937
1938 sum /= MII_88E6390_TEMP_SENSOR_SAMPLES;
1939 *temp = (sum - 75) * 1000;
1940
1941 /* Disable temperature sensor */
1942 ret = __phy_read(phydev, MII_88E6390_MISC_TEST);
1943 if (ret < 0)
1944 goto error;
1945
1946 ret = ret & ~MII_88E6390_MISC_TEST_SAMPLE_MASK;
1947 ret |= MII_88E6390_MISC_TEST_SAMPLE_DISABLE;
1948
1949 ret = __phy_write(phydev, MII_88E6390_MISC_TEST, ret);
1950
1951error:
1952 phy_restore_page(phydev, oldpage, ret);
1953
1954 return ret;
1955}
1956
1957static int m88e6390_hwmon_read(struct device *dev,
1958 enum hwmon_sensor_types type,
1959 u32 attr, int channel, long *temp)
1960{
1961 struct phy_device *phydev = dev_get_drvdata(dev);
1962 int err;
1963
1964 switch (attr) {
1965 case hwmon_temp_input:
1966 err = m88e6390_get_temp(phydev, temp);
1967 break;
1968 default:
1969 return -EOPNOTSUPP;
1970 }
1971
1972 return err;
1973}
1974
1975static umode_t m88e6390_hwmon_is_visible(const void *data,
1976 enum hwmon_sensor_types type,
1977 u32 attr, int channel)
1978{
1979 if (type != hwmon_temp)
1980 return 0;
1981
1982 switch (attr) {
1983 case hwmon_temp_input:
1984 return 0444;
1985 default:
1986 return 0;
1987 }
1988}
1989
1990static u32 m88e6390_hwmon_temp_config[] = {
1991 HWMON_T_INPUT,
1992 0
1993};
1994
1995static const struct hwmon_channel_info m88e6390_hwmon_temp = {
1996 .type = hwmon_temp,
1997 .config = m88e6390_hwmon_temp_config,
1998};
1999
2000static const struct hwmon_channel_info *m88e6390_hwmon_info[] = {
2001 &m88e1121_hwmon_chip,
2002 &m88e6390_hwmon_temp,
2003 NULL
2004};
2005
2006static const struct hwmon_ops m88e6390_hwmon_hwmon_ops = {
2007 .is_visible = m88e6390_hwmon_is_visible,
2008 .read = m88e6390_hwmon_read,
2009};
2010
2011static const struct hwmon_chip_info m88e6390_hwmon_chip_info = {
2012 .ops = &m88e6390_hwmon_hwmon_ops,
2013 .info = m88e6390_hwmon_info,
2014};
2015
2016static int marvell_hwmon_name(struct phy_device *phydev)
2017{
2018 struct marvell_priv *priv = phydev->priv;
2019 struct device *dev = &phydev->mdio.dev;
2020 const char *devname = dev_name(dev);
2021 size_t len = strlen(devname);
2022 int i, j;
2023
2024 priv->hwmon_name = devm_kzalloc(dev, len, GFP_KERNEL);
2025 if (!priv->hwmon_name)
2026 return -ENOMEM;
2027
2028 for (i = j = 0; i < len && devname[i]; i++) {
2029 if (isalnum(devname[i]))
2030 priv->hwmon_name[j++] = devname[i];
2031 }
2032
2033 return 0;
2034}
2035
2036static int marvell_hwmon_probe(struct phy_device *phydev,
2037 const struct hwmon_chip_info *chip)
2038{
2039 struct marvell_priv *priv = phydev->priv;
2040 struct device *dev = &phydev->mdio.dev;
2041 int err;
2042
2043 err = marvell_hwmon_name(phydev);
2044 if (err)
2045 return err;
2046
2047 priv->hwmon_dev = devm_hwmon_device_register_with_info(
2048 dev, priv->hwmon_name, phydev, chip, NULL);
2049
2050 return PTR_ERR_OR_ZERO(priv->hwmon_dev);
2051}
2052
2053static int m88e1121_hwmon_probe(struct phy_device *phydev)
2054{
2055 return marvell_hwmon_probe(phydev, &m88e1121_hwmon_chip_info);
2056}
2057
2058static int m88e1510_hwmon_probe(struct phy_device *phydev)
2059{
2060 return marvell_hwmon_probe(phydev, &m88e1510_hwmon_chip_info);
2061}
2062
2063static int m88e6390_hwmon_probe(struct phy_device *phydev)
2064{
2065 return marvell_hwmon_probe(phydev, &m88e6390_hwmon_chip_info);
2066}
2067#else
2068static int m88e1121_hwmon_probe(struct phy_device *phydev)
2069{
2070 return 0;
2071}
2072
2073static int m88e1510_hwmon_probe(struct phy_device *phydev)
2074{
2075 return 0;
2076}
2077
2078static int m88e6390_hwmon_probe(struct phy_device *phydev)
2079{
2080 return 0;
2081}
2082#endif
2083
2084static int marvell_probe(struct phy_device *phydev)
2085{
2086 struct marvell_priv *priv;
2087
2088 priv = devm_kzalloc(&phydev->mdio.dev, sizeof(*priv), GFP_KERNEL);
2089 if (!priv)
2090 return -ENOMEM;
2091
2092 phydev->priv = priv;
2093
2094 return 0;
2095}
2096
2097static int m88e1121_probe(struct phy_device *phydev)
2098{
2099 int err;
2100
2101 err = marvell_probe(phydev);
2102 if (err)
2103 return err;
2104
2105 return m88e1121_hwmon_probe(phydev);
2106}
2107
2108static int m88e1510_probe(struct phy_device *phydev)
2109{
2110 int err;
2111
2112 err = marvell_probe(phydev);
2113 if (err)
2114 return err;
2115
2116 return m88e1510_hwmon_probe(phydev);
2117}
2118
2119static int m88e6390_probe(struct phy_device *phydev)
2120{
2121 int err;
2122
2123 err = marvell_probe(phydev);
2124 if (err)
2125 return err;
2126
2127 return m88e6390_hwmon_probe(phydev);
2128}
2129
2130static struct phy_driver marvell_drivers[] = {
2131 {
2132 .phy_id = MARVELL_PHY_ID_88E1101,
2133 .phy_id_mask = MARVELL_PHY_ID_MASK,
2134 .name = "Marvell 88E1101",
2135 /* PHY_GBIT_FEATURES */
2136 .probe = marvell_probe,
2137 .config_init = &marvell_config_init,
2138 .config_aneg = &m88e1101_config_aneg,
2139 .ack_interrupt = &marvell_ack_interrupt,
2140 .config_intr = &marvell_config_intr,
2141 .resume = &genphy_resume,
2142 .suspend = &genphy_suspend,
2143 .read_page = marvell_read_page,
2144 .write_page = marvell_write_page,
2145 .get_sset_count = marvell_get_sset_count,
2146 .get_strings = marvell_get_strings,
2147 .get_stats = marvell_get_stats,
2148 },
2149 {
2150 .phy_id = MARVELL_PHY_ID_88E1112,
2151 .phy_id_mask = MARVELL_PHY_ID_MASK,
2152 .name = "Marvell 88E1112",
2153 /* PHY_GBIT_FEATURES */
2154 .probe = marvell_probe,
2155 .config_init = &m88e1111_config_init,
2156 .config_aneg = &marvell_config_aneg,
2157 .ack_interrupt = &marvell_ack_interrupt,
2158 .config_intr = &marvell_config_intr,
2159 .resume = &genphy_resume,
2160 .suspend = &genphy_suspend,
2161 .read_page = marvell_read_page,
2162 .write_page = marvell_write_page,
2163 .get_sset_count = marvell_get_sset_count,
2164 .get_strings = marvell_get_strings,
2165 .get_stats = marvell_get_stats,
2166 },
2167 {
2168 .phy_id = MARVELL_PHY_ID_88E1111,
2169 .phy_id_mask = MARVELL_PHY_ID_MASK,
2170 .name = "Marvell 88E1111",
2171 /* PHY_GBIT_FEATURES */
2172 .probe = marvell_probe,
2173 .config_init = &m88e1111_config_init,
2174 .config_aneg = &marvell_config_aneg,
2175 .read_status = &marvell_read_status,
2176 .ack_interrupt = &marvell_ack_interrupt,
2177 .config_intr = &marvell_config_intr,
2178 .resume = &genphy_resume,
2179 .suspend = &genphy_suspend,
2180 .read_page = marvell_read_page,
2181 .write_page = marvell_write_page,
2182 .get_sset_count = marvell_get_sset_count,
2183 .get_strings = marvell_get_strings,
2184 .get_stats = marvell_get_stats,
2185 },
2186 {
2187 .phy_id = MARVELL_PHY_ID_88E1118,
2188 .phy_id_mask = MARVELL_PHY_ID_MASK,
2189 .name = "Marvell 88E1118",
2190 /* PHY_GBIT_FEATURES */
2191 .probe = marvell_probe,
2192 .config_init = &m88e1118_config_init,
2193 .config_aneg = &m88e1118_config_aneg,
2194 .ack_interrupt = &marvell_ack_interrupt,
2195 .config_intr = &marvell_config_intr,
2196 .resume = &genphy_resume,
2197 .suspend = &genphy_suspend,
2198 .read_page = marvell_read_page,
2199 .write_page = marvell_write_page,
2200 .get_sset_count = marvell_get_sset_count,
2201 .get_strings = marvell_get_strings,
2202 .get_stats = marvell_get_stats,
2203 },
2204 {
2205 .phy_id = MARVELL_PHY_ID_88E1121R,
2206 .phy_id_mask = MARVELL_PHY_ID_MASK,
2207 .name = "Marvell 88E1121R",
2208 /* PHY_GBIT_FEATURES */
2209 .probe = &m88e1121_probe,
2210 .config_init = &marvell_config_init,
2211 .config_aneg = &m88e1121_config_aneg,
2212 .read_status = &marvell_read_status,
2213 .ack_interrupt = &marvell_ack_interrupt,
2214 .config_intr = &marvell_config_intr,
2215 .did_interrupt = &m88e1121_did_interrupt,
2216 .resume = &genphy_resume,
2217 .suspend = &genphy_suspend,
2218 .read_page = marvell_read_page,
2219 .write_page = marvell_write_page,
2220 .get_sset_count = marvell_get_sset_count,
2221 .get_strings = marvell_get_strings,
2222 .get_stats = marvell_get_stats,
2223 },
2224 {
2225 .phy_id = MARVELL_PHY_ID_88E1318S,
2226 .phy_id_mask = MARVELL_PHY_ID_MASK,
2227 .name = "Marvell 88E1318S",
2228 /* PHY_GBIT_FEATURES */
2229 .probe = marvell_probe,
2230 .config_init = &m88e1318_config_init,
2231 .config_aneg = &m88e1318_config_aneg,
2232 .read_status = &marvell_read_status,
2233 .ack_interrupt = &marvell_ack_interrupt,
2234 .config_intr = &marvell_config_intr,
2235 .did_interrupt = &m88e1121_did_interrupt,
2236 .get_wol = &m88e1318_get_wol,
2237 .set_wol = &m88e1318_set_wol,
2238 .resume = &genphy_resume,
2239 .suspend = &genphy_suspend,
2240 .read_page = marvell_read_page,
2241 .write_page = marvell_write_page,
2242 .get_sset_count = marvell_get_sset_count,
2243 .get_strings = marvell_get_strings,
2244 .get_stats = marvell_get_stats,
2245 },
2246 {
2247 .phy_id = MARVELL_PHY_ID_88E1145,
2248 .phy_id_mask = MARVELL_PHY_ID_MASK,
2249 .name = "Marvell 88E1145",
2250 /* PHY_GBIT_FEATURES */
2251 .probe = marvell_probe,
2252 .config_init = &m88e1145_config_init,
2253 .config_aneg = &m88e1101_config_aneg,
2254 .read_status = &genphy_read_status,
2255 .ack_interrupt = &marvell_ack_interrupt,
2256 .config_intr = &marvell_config_intr,
2257 .resume = &genphy_resume,
2258 .suspend = &genphy_suspend,
2259 .read_page = marvell_read_page,
2260 .write_page = marvell_write_page,
2261 .get_sset_count = marvell_get_sset_count,
2262 .get_strings = marvell_get_strings,
2263 .get_stats = marvell_get_stats,
2264 },
2265 {
2266 .phy_id = MARVELL_PHY_ID_88E1149R,
2267 .phy_id_mask = MARVELL_PHY_ID_MASK,
2268 .name = "Marvell 88E1149R",
2269 /* PHY_GBIT_FEATURES */
2270 .probe = marvell_probe,
2271 .config_init = &m88e1149_config_init,
2272 .config_aneg = &m88e1118_config_aneg,
2273 .ack_interrupt = &marvell_ack_interrupt,
2274 .config_intr = &marvell_config_intr,
2275 .resume = &genphy_resume,
2276 .suspend = &genphy_suspend,
2277 .read_page = marvell_read_page,
2278 .write_page = marvell_write_page,
2279 .get_sset_count = marvell_get_sset_count,
2280 .get_strings = marvell_get_strings,
2281 .get_stats = marvell_get_stats,
2282 },
2283 {
2284 .phy_id = MARVELL_PHY_ID_88E1240,
2285 .phy_id_mask = MARVELL_PHY_ID_MASK,
2286 .name = "Marvell 88E1240",
2287 /* PHY_GBIT_FEATURES */
2288 .probe = marvell_probe,
2289 .config_init = &m88e1111_config_init,
2290 .config_aneg = &marvell_config_aneg,
2291 .ack_interrupt = &marvell_ack_interrupt,
2292 .config_intr = &marvell_config_intr,
2293 .resume = &genphy_resume,
2294 .suspend = &genphy_suspend,
2295 .read_page = marvell_read_page,
2296 .write_page = marvell_write_page,
2297 .get_sset_count = marvell_get_sset_count,
2298 .get_strings = marvell_get_strings,
2299 .get_stats = marvell_get_stats,
2300 },
2301 {
2302 .phy_id = MARVELL_PHY_ID_88E1116R,
2303 .phy_id_mask = MARVELL_PHY_ID_MASK,
2304 .name = "Marvell 88E1116R",
2305 /* PHY_GBIT_FEATURES */
2306 .probe = marvell_probe,
2307 .config_init = &m88e1116r_config_init,
2308 .ack_interrupt = &marvell_ack_interrupt,
2309 .config_intr = &marvell_config_intr,
2310 .resume = &genphy_resume,
2311 .suspend = &genphy_suspend,
2312 .read_page = marvell_read_page,
2313 .write_page = marvell_write_page,
2314 .get_sset_count = marvell_get_sset_count,
2315 .get_strings = marvell_get_strings,
2316 .get_stats = marvell_get_stats,
2317 },
2318 {
2319 .phy_id = MARVELL_PHY_ID_88E1510,
2320 .phy_id_mask = MARVELL_PHY_ID_MASK,
2321 .name = "Marvell 88E1510",
2322 .features = PHY_GBIT_FIBRE_FEATURES,
2323 .probe = &m88e1510_probe,
2324 .config_init = &m88e1510_config_init,
2325 .config_aneg = &m88e1510_config_aneg,
2326 .read_status = &marvell_read_status,
2327 .ack_interrupt = &marvell_ack_interrupt,
2328 .config_intr = &marvell_config_intr,
2329 .did_interrupt = &m88e1121_did_interrupt,
2330 .get_wol = &m88e1318_get_wol,
2331 .set_wol = &m88e1318_set_wol,
2332 .resume = &marvell_resume,
2333 .suspend = &marvell_suspend,
2334 .read_page = marvell_read_page,
2335 .write_page = marvell_write_page,
2336 .get_sset_count = marvell_get_sset_count,
2337 .get_strings = marvell_get_strings,
2338 .get_stats = marvell_get_stats,
2339 .set_loopback = genphy_loopback,
2340 },
2341 {
2342 .phy_id = MARVELL_PHY_ID_88E1540,
2343 .phy_id_mask = MARVELL_PHY_ID_MASK,
2344 .name = "Marvell 88E1540",
2345 /* PHY_GBIT_FEATURES */
2346 .probe = m88e1510_probe,
2347 .config_init = &marvell_config_init,
2348 .config_aneg = &m88e1510_config_aneg,
2349 .read_status = &marvell_read_status,
2350 .ack_interrupt = &marvell_ack_interrupt,
2351 .config_intr = &marvell_config_intr,
2352 .did_interrupt = &m88e1121_did_interrupt,
2353 .resume = &genphy_resume,
2354 .suspend = &genphy_suspend,
2355 .read_page = marvell_read_page,
2356 .write_page = marvell_write_page,
2357 .get_sset_count = marvell_get_sset_count,
2358 .get_strings = marvell_get_strings,
2359 .get_stats = marvell_get_stats,
2360 .get_tunable = m88e1540_get_tunable,
2361 .set_tunable = m88e1540_set_tunable,
2362 },
2363 {
2364 .phy_id = MARVELL_PHY_ID_88E1545,
2365 .phy_id_mask = MARVELL_PHY_ID_MASK,
2366 .name = "Marvell 88E1545",
2367 .probe = m88e1510_probe,
2368 /* PHY_GBIT_FEATURES */
2369 .config_init = &marvell_config_init,
2370 .config_aneg = &m88e1510_config_aneg,
2371 .read_status = &marvell_read_status,
2372 .ack_interrupt = &marvell_ack_interrupt,
2373 .config_intr = &marvell_config_intr,
2374 .did_interrupt = &m88e1121_did_interrupt,
2375 .resume = &genphy_resume,
2376 .suspend = &genphy_suspend,
2377 .read_page = marvell_read_page,
2378 .write_page = marvell_write_page,
2379 .get_sset_count = marvell_get_sset_count,
2380 .get_strings = marvell_get_strings,
2381 .get_stats = marvell_get_stats,
2382 },
2383 {
2384 .phy_id = MARVELL_PHY_ID_88E3016,
2385 .phy_id_mask = MARVELL_PHY_ID_MASK,
2386 .name = "Marvell 88E3016",
2387 /* PHY_BASIC_FEATURES */
2388 .probe = marvell_probe,
2389 .config_init = &m88e3016_config_init,
2390 .aneg_done = &marvell_aneg_done,
2391 .read_status = &marvell_read_status,
2392 .ack_interrupt = &marvell_ack_interrupt,
2393 .config_intr = &marvell_config_intr,
2394 .did_interrupt = &m88e1121_did_interrupt,
2395 .resume = &genphy_resume,
2396 .suspend = &genphy_suspend,
2397 .read_page = marvell_read_page,
2398 .write_page = marvell_write_page,
2399 .get_sset_count = marvell_get_sset_count,
2400 .get_strings = marvell_get_strings,
2401 .get_stats = marvell_get_stats,
2402 },
2403 {
2404 .phy_id = MARVELL_PHY_ID_88E6390,
2405 .phy_id_mask = MARVELL_PHY_ID_MASK,
2406 .name = "Marvell 88E6390",
2407 /* PHY_GBIT_FEATURES */
2408 .probe = m88e6390_probe,
2409 .config_init = &marvell_config_init,
2410 .config_aneg = &m88e6390_config_aneg,
2411 .read_status = &marvell_read_status,
2412 .ack_interrupt = &marvell_ack_interrupt,
2413 .config_intr = &marvell_config_intr,
2414 .did_interrupt = &m88e1121_did_interrupt,
2415 .resume = &genphy_resume,
2416 .suspend = &genphy_suspend,
2417 .read_page = marvell_read_page,
2418 .write_page = marvell_write_page,
2419 .get_sset_count = marvell_get_sset_count,
2420 .get_strings = marvell_get_strings,
2421 .get_stats = marvell_get_stats,
2422 .get_tunable = m88e1540_get_tunable,
2423 .set_tunable = m88e1540_set_tunable,
2424 },
2425};
2426
2427module_phy_driver(marvell_drivers);
2428
2429static struct mdio_device_id __maybe_unused marvell_tbl[] = {
2430 { MARVELL_PHY_ID_88E1101, MARVELL_PHY_ID_MASK },
2431 { MARVELL_PHY_ID_88E1112, MARVELL_PHY_ID_MASK },
2432 { MARVELL_PHY_ID_88E1111, MARVELL_PHY_ID_MASK },
2433 { MARVELL_PHY_ID_88E1118, MARVELL_PHY_ID_MASK },
2434 { MARVELL_PHY_ID_88E1121R, MARVELL_PHY_ID_MASK },
2435 { MARVELL_PHY_ID_88E1145, MARVELL_PHY_ID_MASK },
2436 { MARVELL_PHY_ID_88E1149R, MARVELL_PHY_ID_MASK },
2437 { MARVELL_PHY_ID_88E1240, MARVELL_PHY_ID_MASK },
2438 { MARVELL_PHY_ID_88E1318S, MARVELL_PHY_ID_MASK },
2439 { MARVELL_PHY_ID_88E1116R, MARVELL_PHY_ID_MASK },
2440 { MARVELL_PHY_ID_88E1510, MARVELL_PHY_ID_MASK },
2441 { MARVELL_PHY_ID_88E1540, MARVELL_PHY_ID_MASK },
2442 { MARVELL_PHY_ID_88E1545, MARVELL_PHY_ID_MASK },
2443 { MARVELL_PHY_ID_88E3016, MARVELL_PHY_ID_MASK },
2444 { MARVELL_PHY_ID_88E6390, MARVELL_PHY_ID_MASK },
2445 { }
2446};
2447
2448MODULE_DEVICE_TABLE(mdio, marvell_tbl);