summaryrefslogtreecommitdiff
path: root/drivers/net/phy/realtek.c
blob: 99ecd6c4c15a0c0c2a45b9de02954aabd8094fe5 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
// SPDX-License-Identifier: GPL-2.0+
/* drivers/net/phy/realtek.c
 *
 * Driver for Realtek PHYs
 *
 * Author: Johnson Leung <r58129@freescale.com>
 *
 * Copyright (c) 2004 Freescale Semiconductor, Inc.
 */
#include <linux/bitops.h>
#include <linux/phy.h>
#include <linux/module.h>
#include <linux/delay.h>

#define RTL821x_PHYSR				0x11
#define RTL821x_PHYSR_DUPLEX			BIT(13)
#define RTL821x_PHYSR_SPEED			GENMASK(15, 14)

#define RTL821x_INER				0x12
#define RTL8211B_INER_INIT			0x6400
#define RTL8211E_INER_LINK_STATUS		BIT(10)
#define RTL8211F_INER_LINK_STATUS		BIT(4)

#define RTL821x_INSR				0x13

#define RTL821x_EXT_PAGE_SELECT			0x1e
#define RTL821x_PAGE_SELECT			0x1f

#define RTL8211F_PHYCR1				0x18
#define RTL8211F_INSR				0x1d

#define RTL8211F_TX_DELAY			BIT(8)
#define RTL8211F_RX_DELAY			BIT(3)

#define RTL8211F_ALDPS_PLL_OFF			BIT(1)
#define RTL8211F_ALDPS_ENABLE			BIT(2)
#define RTL8211F_ALDPS_XTAL_OFF			BIT(12)

#define RTL8211E_CTRL_DELAY			BIT(13)
#define RTL8211E_TX_DELAY			BIT(12)
#define RTL8211E_RX_DELAY			BIT(11)

#define RTL8201F_ISR				0x1e
#define RTL8201F_ISR_ANERR			BIT(15)
#define RTL8201F_ISR_DUPLEX			BIT(13)
#define RTL8201F_ISR_LINK			BIT(11)
#define RTL8201F_ISR_MASK			(RTL8201F_ISR_ANERR | \
						 RTL8201F_ISR_DUPLEX | \
						 RTL8201F_ISR_LINK)
#define RTL8201F_IER				0x13

#define RTL8366RB_POWER_SAVE			0x15
#define RTL8366RB_POWER_SAVE_ON			BIT(12)

#define RTL_SUPPORTS_5000FULL			BIT(14)
#define RTL_SUPPORTS_2500FULL			BIT(13)
#define RTL_SUPPORTS_10000FULL			BIT(0)
#define RTL_ADV_2500FULL			BIT(7)
#define RTL_LPADV_10000FULL			BIT(11)
#define RTL_LPADV_5000FULL			BIT(6)
#define RTL_LPADV_2500FULL			BIT(5)

#define RTLGEN_SPEED_MASK			0x0630

#define RTL_GENERIC_PHYID			0x001cc800

MODULE_DESCRIPTION("Realtek PHY driver");
MODULE_AUTHOR("Johnson Leung");
MODULE_LICENSE("GPL");

static int rtl821x_read_page(struct phy_device *phydev)
{
	return __phy_read(phydev, RTL821x_PAGE_SELECT);
}

static int rtl821x_write_page(struct phy_device *phydev, int page)
{
	return __phy_write(phydev, RTL821x_PAGE_SELECT, page);
}

static int rtl8201_ack_interrupt(struct phy_device *phydev)
{
	int err;

	err = phy_read(phydev, RTL8201F_ISR);

	return (err < 0) ? err : 0;
}

static int rtl821x_ack_interrupt(struct phy_device *phydev)
{
	int err;

	err = phy_read(phydev, RTL821x_INSR);

	return (err < 0) ? err : 0;
}

static int rtl8211f_ack_interrupt(struct phy_device *phydev)
{
	int err;

	err = phy_read_paged(phydev, 0xa43, RTL8211F_INSR);

	return (err < 0) ? err : 0;
}

static int rtl8201_config_intr(struct phy_device *phydev)
{
	u16 val;
	int err;

	if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {
		err = rtl8201_ack_interrupt(phydev);
		if (err)
			return err;

		val = BIT(13) | BIT(12) | BIT(11);
		err = phy_write_paged(phydev, 0x7, RTL8201F_IER, val);
	} else {
		val = 0;
		err = phy_write_paged(phydev, 0x7, RTL8201F_IER, val);
		if (err)
			return err;

		err = rtl8201_ack_interrupt(phydev);
	}

	return err;
}

static int rtl8211b_config_intr(struct phy_device *phydev)
{
	int err;

	if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {
		err = rtl821x_ack_interrupt(phydev);
		if (err)
			return err;

		err = phy_write(phydev, RTL821x_INER,
				RTL8211B_INER_INIT);
	} else {
		err = phy_write(phydev, RTL821x_INER, 0);
		if (err)
			return err;

		err = rtl821x_ack_interrupt(phydev);
	}

	return err;
}

static int rtl8211e_config_intr(struct phy_device *phydev)
{
	int err;

	if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {
		err = rtl821x_ack_interrupt(phydev);
		if (err)
			return err;

		err = phy_write(phydev, RTL821x_INER,
				RTL8211E_INER_LINK_STATUS);
	} else {
		err = phy_write(phydev, RTL821x_INER, 0);
		if (err)
			return err;

		err = rtl821x_ack_interrupt(phydev);
	}

	return err;
}

static int rtl8211f_config_intr(struct phy_device *phydev)
{
	u16 val;
	int err;

	if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {
		err = rtl8211f_ack_interrupt(phydev);
		if (err)
			return err;

		val = RTL8211F_INER_LINK_STATUS;
		err = phy_write_paged(phydev, 0xa42, RTL821x_INER, val);
	} else {
		val = 0;
		err = phy_write_paged(phydev, 0xa42, RTL821x_INER, val);
		if (err)
			return err;

		err = rtl8211f_ack_interrupt(phydev);
	}

	return err;
}

static irqreturn_t rtl8201_handle_interrupt(struct phy_device *phydev)
{
	int irq_status;

	irq_status = phy_read(phydev, RTL8201F_ISR);
	if (irq_status < 0) {
		phy_error(phydev);
		return IRQ_NONE;
	}

	if (!(irq_status & RTL8201F_ISR_MASK))
		return IRQ_NONE;

	phy_trigger_machine(phydev);

	return IRQ_HANDLED;
}

static irqreturn_t rtl821x_handle_interrupt(struct phy_device *phydev)
{
	int irq_status, irq_enabled;

	irq_status = phy_read(phydev, RTL821x_INSR);
	if (irq_status < 0) {
		phy_error(phydev);
		return IRQ_NONE;
	}

	irq_enabled = phy_read(phydev, RTL821x_INER);
	if (irq_enabled < 0) {
		phy_error(phydev);
		return IRQ_NONE;
	}

	if (!(irq_status & irq_enabled))
		return IRQ_NONE;

	phy_trigger_machine(phydev);

	return IRQ_HANDLED;
}

static irqreturn_t rtl8211f_handle_interrupt(struct phy_device *phydev)
{
	int irq_status;

	irq_status = phy_read_paged(phydev, 0xa43, RTL8211F_INSR);
	if (irq_status < 0) {
		phy_error(phydev);
		return IRQ_NONE;
	}

	if (!(irq_status & RTL8211F_INER_LINK_STATUS))
		return IRQ_NONE;

	phy_trigger_machine(phydev);

	return IRQ_HANDLED;
}

static int rtl8211_config_aneg(struct phy_device *phydev)
{
	int ret;

	ret = genphy_config_aneg(phydev);
	if (ret < 0)
		return ret;

	/* Quirk was copied from vendor driver. Unfortunately it includes no
	 * description of the magic numbers.
	 */
	if (phydev->speed == SPEED_100 && phydev->autoneg == AUTONEG_DISABLE) {
		phy_write(phydev, 0x17, 0x2138);
		phy_write(phydev, 0x0e, 0x0260);
	} else {
		phy_write(phydev, 0x17, 0x2108);
		phy_write(phydev, 0x0e, 0x0000);
	}

	return 0;
}

static int rtl8211c_config_init(struct phy_device *phydev)
{
	/* RTL8211C has an issue when operating in Gigabit slave mode */
	return phy_set_bits(phydev, MII_CTRL1000,
			    CTL1000_ENABLE_MASTER | CTL1000_AS_MASTER);
}

static int rtl8211f_config_init(struct phy_device *phydev)
{
	struct device *dev = &phydev->mdio.dev;
	u16 val_txdly, val_rxdly;
	u16 val;
	int ret;

	val = RTL8211F_ALDPS_ENABLE | RTL8211F_ALDPS_PLL_OFF | RTL8211F_ALDPS_XTAL_OFF;
	phy_modify_paged_changed(phydev, 0xa43, RTL8211F_PHYCR1, val, val);

	switch (phydev->interface) {
	case PHY_INTERFACE_MODE_RGMII:
		val_txdly = 0;
		val_rxdly = 0;
		break;

	case PHY_INTERFACE_MODE_RGMII_RXID:
		val_txdly = 0;
		val_rxdly = RTL8211F_RX_DELAY;
		break;

	case PHY_INTERFACE_MODE_RGMII_TXID:
		val_txdly = RTL8211F_TX_DELAY;
		val_rxdly = 0;
		break;

	case PHY_INTERFACE_MODE_RGMII_ID:
		val_txdly = RTL8211F_TX_DELAY;
		val_rxdly = RTL8211F_RX_DELAY;
		break;

	default: /* the rest of the modes imply leaving delay as is. */
		return 0;
	}

	ret = phy_modify_paged_changed(phydev, 0xd08, 0x11, RTL8211F_TX_DELAY,
				       val_txdly);
	if (ret < 0) {
		dev_err(dev, "Failed to update the TX delay register\n");
		return ret;
	} else if (ret) {
		dev_dbg(dev,
			"%s 2ns TX delay (and changing the value from pin-strapping RXD1 or the bootloader)\n",
			val_txdly ? "Enabling" : "Disabling");
	} else {
		dev_dbg(dev,
			"2ns TX delay was already %s (by pin-strapping RXD1 or bootloader configuration)\n",
			val_txdly ? "enabled" : "disabled");
	}

	ret = phy_modify_paged_changed(phydev, 0xd08, 0x15, RTL8211F_RX_DELAY,
				       val_rxdly);
	if (ret < 0) {
		dev_err(dev, "Failed to update the RX delay register\n");
		return ret;
	} else if (ret) {
		dev_dbg(dev,
			"%s 2ns RX delay (and changing the value from pin-strapping RXD0 or the bootloader)\n",
			val_rxdly ? "Enabling" : "Disabling");
	} else {
		dev_dbg(dev,
			"2ns RX delay was already %s (by pin-strapping RXD0 or bootloader configuration)\n",
			val_rxdly ? "enabled" : "disabled");
	}

	return 0;
}

static int rtl8211e_config_init(struct phy_device *phydev)
{
	int ret = 0, oldpage;
	u16 val;

	/* enable TX/RX delay for rgmii-* modes, and disable them for rgmii. */
	switch (phydev->interface) {
	case PHY_INTERFACE_MODE_RGMII:
		val = RTL8211E_CTRL_DELAY | 0;
		break;
	case PHY_INTERFACE_MODE_RGMII_ID:
		val = RTL8211E_CTRL_DELAY | RTL8211E_TX_DELAY | RTL8211E_RX_DELAY;
		break;
	case PHY_INTERFACE_MODE_RGMII_RXID:
		val = RTL8211E_CTRL_DELAY | RTL8211E_RX_DELAY;
		break;
	case PHY_INTERFACE_MODE_RGMII_TXID:
		val = RTL8211E_CTRL_DELAY | RTL8211E_TX_DELAY;
		break;
	default: /* the rest of the modes imply leaving delays as is. */
		return 0;
	}

	/* According to a sample driver there is a 0x1c config register on the
	 * 0xa4 extension page (0x7) layout. It can be used to disable/enable
	 * the RX/TX delays otherwise controlled by RXDLY/TXDLY pins.
	 * The configuration register definition:
	 * 14 = reserved
	 * 13 = Force Tx RX Delay controlled by bit12 bit11,
	 * 12 = RX Delay, 11 = TX Delay
	 * 10:0 = Test && debug settings reserved by realtek
	 */
	oldpage = phy_select_page(phydev, 0x7);
	if (oldpage < 0)
		goto err_restore_page;

	ret = __phy_write(phydev, RTL821x_EXT_PAGE_SELECT, 0xa4);
	if (ret)
		goto err_restore_page;

	ret = __phy_modify(phydev, 0x1c, RTL8211E_CTRL_DELAY
			   | RTL8211E_TX_DELAY | RTL8211E_RX_DELAY,
			   val);

err_restore_page:
	return phy_restore_page(phydev, oldpage, ret);
}

static int rtl8211b_suspend(struct phy_device *phydev)
{
	phy_write(phydev, MII_MMD_DATA, BIT(9));

	return genphy_suspend(phydev);
}

static int rtl8211b_resume(struct phy_device *phydev)
{
	phy_write(phydev, MII_MMD_DATA, 0);

	return genphy_resume(phydev);
}

static int rtl8366rb_config_init(struct phy_device *phydev)
{
	int ret;

	ret = phy_set_bits(phydev, RTL8366RB_POWER_SAVE,
			   RTL8366RB_POWER_SAVE_ON);
	if (ret) {
		dev_err(&phydev->mdio.dev,
			"error enabling power management\n");
	}

	return ret;
}

/* get actual speed to cover the downshift case */
static int rtlgen_get_speed(struct phy_device *phydev)
{
	int val;

	if (!phydev->link)
		return 0;

	val = phy_read_paged(phydev, 0xa43, 0x12);
	if (val < 0)
		return val;

	switch (val & RTLGEN_SPEED_MASK) {
	case 0x0000:
		phydev->speed = SPEED_10;
		break;
	case 0x0010:
		phydev->speed = SPEED_100;
		break;
	case 0x0020:
		phydev->speed = SPEED_1000;
		break;
	case 0x0200:
		phydev->speed = SPEED_10000;
		break;
	case 0x0210:
		phydev->speed = SPEED_2500;
		break;
	case 0x0220:
		phydev->speed = SPEED_5000;
		break;
	default:
		break;
	}

	return 0;
}

static int rtlgen_read_status(struct phy_device *phydev)
{
	int ret;

	ret = genphy_read_status(phydev);
	if (ret < 0)
		return ret;

	return rtlgen_get_speed(phydev);
}

static int rtlgen_read_mmd(struct phy_device *phydev, int devnum, u16 regnum)
{
	int ret;

	if (devnum == MDIO_MMD_PCS && regnum == MDIO_PCS_EEE_ABLE) {
		rtl821x_write_page(phydev, 0xa5c);
		ret = __phy_read(phydev, 0x12);
		rtl821x_write_page(phydev, 0);
	} else if (devnum == MDIO_MMD_AN && regnum == MDIO_AN_EEE_ADV) {
		rtl821x_write_page(phydev, 0xa5d);
		ret = __phy_read(phydev, 0x10);
		rtl821x_write_page(phydev, 0);
	} else if (devnum == MDIO_MMD_AN && regnum == MDIO_AN_EEE_LPABLE) {
		rtl821x_write_page(phydev, 0xa5d);
		ret = __phy_read(phydev, 0x11);
		rtl821x_write_page(phydev, 0);
	} else {
		ret = -EOPNOTSUPP;
	}

	return ret;
}

static int rtlgen_write_mmd(struct phy_device *phydev, int devnum, u16 regnum,
			    u16 val)
{
	int ret;

	if (devnum == MDIO_MMD_AN && regnum == MDIO_AN_EEE_ADV) {
		rtl821x_write_page(phydev, 0xa5d);
		ret = __phy_write(phydev, 0x10, val);
		rtl821x_write_page(phydev, 0);
	} else {
		ret = -EOPNOTSUPP;
	}

	return ret;
}

static int rtl822x_read_mmd(struct phy_device *phydev, int devnum, u16 regnum)
{
	int ret = rtlgen_read_mmd(phydev, devnum, regnum);

	if (ret != -EOPNOTSUPP)
		return ret;

	if (devnum == MDIO_MMD_PCS && regnum == MDIO_PCS_EEE_ABLE2) {
		rtl821x_write_page(phydev, 0xa6e);
		ret = __phy_read(phydev, 0x16);
		rtl821x_write_page(phydev, 0);
	} else if (devnum == MDIO_MMD_AN && regnum == MDIO_AN_EEE_ADV2) {
		rtl821x_write_page(phydev, 0xa6d);
		ret = __phy_read(phydev, 0x12);
		rtl821x_write_page(phydev, 0);
	} else if (devnum == MDIO_MMD_AN && regnum == MDIO_AN_EEE_LPABLE2) {
		rtl821x_write_page(phydev, 0xa6d);
		ret = __phy_read(phydev, 0x10);
		rtl821x_write_page(phydev, 0);
	}

	return ret;
}

static int rtl822x_write_mmd(struct phy_device *phydev, int devnum, u16 regnum,
			     u16 val)
{
	int ret = rtlgen_write_mmd(phydev, devnum, regnum, val);

	if (ret != -EOPNOTSUPP)
		return ret;

	if (devnum == MDIO_MMD_AN && regnum == MDIO_AN_EEE_ADV2) {
		rtl821x_write_page(phydev, 0xa6d);
		ret = __phy_write(phydev, 0x12, val);
		rtl821x_write_page(phydev, 0);
	}

	return ret;
}

static int rtl822x_get_features(struct phy_device *phydev)
{
	int val;

	val = phy_read_paged(phydev, 0xa61, 0x13);
	if (val < 0)
		return val;

	linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
			 phydev->supported, val & RTL_SUPPORTS_2500FULL);
	linkmode_mod_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT,
			 phydev->supported, val & RTL_SUPPORTS_5000FULL);
	linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT,
			 phydev->supported, val & RTL_SUPPORTS_10000FULL);

	return genphy_read_abilities(phydev);
}

static int rtl822x_config_aneg(struct phy_device *phydev)
{
	int ret = 0;

	if (phydev->autoneg == AUTONEG_ENABLE) {
		u16 adv2500 = 0;

		if (linkmode_test_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
				      phydev->advertising))
			adv2500 = RTL_ADV_2500FULL;

		ret = phy_modify_paged_changed(phydev, 0xa5d, 0x12,
					       RTL_ADV_2500FULL, adv2500);
		if (ret < 0)
			return ret;
	}

	return __genphy_config_aneg(phydev, ret);
}

static int rtl822x_read_status(struct phy_device *phydev)
{
	int ret;

	if (phydev->autoneg == AUTONEG_ENABLE) {
		int lpadv = phy_read_paged(phydev, 0xa5d, 0x13);

		if (lpadv < 0)
			return lpadv;

		linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT,
			phydev->lp_advertising, lpadv & RTL_LPADV_10000FULL);
		linkmode_mod_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT,
			phydev->lp_advertising, lpadv & RTL_LPADV_5000FULL);
		linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
			phydev->lp_advertising, lpadv & RTL_LPADV_2500FULL);
	}

	ret = genphy_read_status(phydev);
	if (ret < 0)
		return ret;

	return rtlgen_get_speed(phydev);
}

static bool rtlgen_supports_2_5gbps(struct phy_device *phydev)
{
	int val;

	phy_write(phydev, RTL821x_PAGE_SELECT, 0xa61);
	val = phy_read(phydev, 0x13);
	phy_write(phydev, RTL821x_PAGE_SELECT, 0);

	return val >= 0 && val & RTL_SUPPORTS_2500FULL;
}

static int rtlgen_match_phy_device(struct phy_device *phydev)
{
	return phydev->phy_id == RTL_GENERIC_PHYID &&
	       !rtlgen_supports_2_5gbps(phydev);
}

static int rtl8226_match_phy_device(struct phy_device *phydev)
{
	return phydev->phy_id == RTL_GENERIC_PHYID &&
	       rtlgen_supports_2_5gbps(phydev);
}

static int rtlgen_resume(struct phy_device *phydev)
{
	int ret = genphy_resume(phydev);

	/* Internal PHY's from RTL8168h up may not be instantly ready */
	msleep(20);

	return ret;
}

static struct phy_driver realtek_drvs[] = {
	{
		PHY_ID_MATCH_EXACT(0x00008201),
		.name           = "RTL8201CP Ethernet",
		.read_page	= rtl821x_read_page,
		.write_page	= rtl821x_write_page,
	}, {
		PHY_ID_MATCH_EXACT(0x001cc816),
		.name		= "RTL8201F Fast Ethernet",
		.config_intr	= &rtl8201_config_intr,
		.handle_interrupt = rtl8201_handle_interrupt,
		.suspend	= genphy_suspend,
		.resume		= genphy_resume,
		.read_page	= rtl821x_read_page,
		.write_page	= rtl821x_write_page,
	}, {
		PHY_ID_MATCH_MODEL(0x001cc880),
		.name		= "RTL8208 Fast Ethernet",
		.read_mmd	= genphy_read_mmd_unsupported,
		.write_mmd	= genphy_write_mmd_unsupported,
		.suspend	= genphy_suspend,
		.resume		= genphy_resume,
		.read_page	= rtl821x_read_page,
		.write_page	= rtl821x_write_page,
	}, {
		PHY_ID_MATCH_EXACT(0x001cc910),
		.name		= "RTL8211 Gigabit Ethernet",
		.config_aneg	= rtl8211_config_aneg,
		.read_mmd	= &genphy_read_mmd_unsupported,
		.write_mmd	= &genphy_write_mmd_unsupported,
		.read_page	= rtl821x_read_page,
		.write_page	= rtl821x_write_page,
	}, {
		PHY_ID_MATCH_EXACT(0x001cc912),
		.name		= "RTL8211B Gigabit Ethernet",
		.config_intr	= &rtl8211b_config_intr,
		.handle_interrupt = rtl821x_handle_interrupt,
		.read_mmd	= &genphy_read_mmd_unsupported,
		.write_mmd	= &genphy_write_mmd_unsupported,
		.suspend	= rtl8211b_suspend,
		.resume		= rtl8211b_resume,
		.read_page	= rtl821x_read_page,
		.write_page	= rtl821x_write_page,
	}, {
		PHY_ID_MATCH_EXACT(0x001cc913),
		.name		= "RTL8211C Gigabit Ethernet",
		.config_init	= rtl8211c_config_init,
		.read_mmd	= &genphy_read_mmd_unsupported,
		.write_mmd	= &genphy_write_mmd_unsupported,
		.read_page	= rtl821x_read_page,
		.write_page	= rtl821x_write_page,
	}, {
		PHY_ID_MATCH_EXACT(0x001cc914),
		.name		= "RTL8211DN Gigabit Ethernet",
		.config_intr	= rtl8211e_config_intr,
		.handle_interrupt = rtl821x_handle_interrupt,
		.suspend	= genphy_suspend,
		.resume		= genphy_resume,
		.read_page	= rtl821x_read_page,
		.write_page	= rtl821x_write_page,
	}, {
		PHY_ID_MATCH_EXACT(0x001cc915),
		.name		= "RTL8211E Gigabit Ethernet",
		.config_init	= &rtl8211e_config_init,
		.config_intr	= &rtl8211e_config_intr,
		.handle_interrupt = rtl821x_handle_interrupt,
		.suspend	= genphy_suspend,
		.resume		= genphy_resume,
		.read_page	= rtl821x_read_page,
		.write_page	= rtl821x_write_page,
	}, {
		PHY_ID_MATCH_EXACT(0x001cc916),
		.name		= "RTL8211F Gigabit Ethernet",
		.config_init	= &rtl8211f_config_init,
		.read_status	= rtlgen_read_status,
		.config_intr	= &rtl8211f_config_intr,
		.handle_interrupt = rtl8211f_handle_interrupt,
		.suspend	= genphy_suspend,
		.resume		= genphy_resume,
		.read_page	= rtl821x_read_page,
		.write_page	= rtl821x_write_page,
	}, {
		.name		= "Generic FE-GE Realtek PHY",
		.match_phy_device = rtlgen_match_phy_device,
		.read_status	= rtlgen_read_status,
		.suspend	= genphy_suspend,
		.resume		= rtlgen_resume,
		.read_page	= rtl821x_read_page,
		.write_page	= rtl821x_write_page,
		.read_mmd	= rtlgen_read_mmd,
		.write_mmd	= rtlgen_write_mmd,
	}, {
		.name		= "RTL8226 2.5Gbps PHY",
		.match_phy_device = rtl8226_match_phy_device,
		.get_features	= rtl822x_get_features,
		.config_aneg	= rtl822x_config_aneg,
		.read_status	= rtl822x_read_status,
		.suspend	= genphy_suspend,
		.resume		= rtlgen_resume,
		.read_page	= rtl821x_read_page,
		.write_page	= rtl821x_write_page,
		.read_mmd	= rtl822x_read_mmd,
		.write_mmd	= rtl822x_write_mmd,
	}, {
		PHY_ID_MATCH_EXACT(0x001cc840),
		.name		= "RTL8226B_RTL8221B 2.5Gbps PHY",
		.get_features	= rtl822x_get_features,
		.config_aneg	= rtl822x_config_aneg,
		.read_status	= rtl822x_read_status,
		.suspend	= genphy_suspend,
		.resume		= rtlgen_resume,
		.read_page	= rtl821x_read_page,
		.write_page	= rtl821x_write_page,
		.read_mmd	= rtl822x_read_mmd,
		.write_mmd	= rtl822x_write_mmd,
	}, {
		PHY_ID_MATCH_EXACT(0x001cc838),
		.name           = "RTL8226-CG 2.5Gbps PHY",
		.get_features   = rtl822x_get_features,
		.config_aneg    = rtl822x_config_aneg,
		.read_status    = rtl822x_read_status,
		.suspend        = genphy_suspend,
		.resume         = rtlgen_resume,
		.read_page      = rtl821x_read_page,
		.write_page     = rtl821x_write_page,
	}, {
		PHY_ID_MATCH_EXACT(0x001cc848),
		.name           = "RTL8226B-CG_RTL8221B-CG 2.5Gbps PHY",
		.get_features   = rtl822x_get_features,
		.config_aneg    = rtl822x_config_aneg,
		.read_status    = rtl822x_read_status,
		.suspend        = genphy_suspend,
		.resume         = rtlgen_resume,
		.read_page      = rtl821x_read_page,
		.write_page     = rtl821x_write_page,
	}, {
		PHY_ID_MATCH_EXACT(0x001cc849),
		.name           = "RTL8221B-VB-CG 2.5Gbps PHY",
		.get_features   = rtl822x_get_features,
		.config_aneg    = rtl822x_config_aneg,
		.read_status    = rtl822x_read_status,
		.suspend        = genphy_suspend,
		.resume         = rtlgen_resume,
		.read_page      = rtl821x_read_page,
		.write_page     = rtl821x_write_page,
	}, {
		PHY_ID_MATCH_EXACT(0x001cc84a),
		.name           = "RTL8221B-VM-CG 2.5Gbps PHY",
		.get_features   = rtl822x_get_features,
		.config_aneg    = rtl822x_config_aneg,
		.read_status    = rtl822x_read_status,
		.suspend        = genphy_suspend,
		.resume         = rtlgen_resume,
		.read_page      = rtl821x_read_page,
		.write_page     = rtl821x_write_page,
	}, {
		PHY_ID_MATCH_EXACT(0x001cc961),
		.name		= "RTL8366RB Gigabit Ethernet",
		.config_init	= &rtl8366rb_config_init,
		/* These interrupts are handled by the irq controller
		 * embedded inside the RTL8366RB, they get unmasked when the
		 * irq is requested and ACKed by reading the status register,
		 * which is done by the irqchip code.
		 */
		.config_intr	= genphy_no_config_intr,
		.handle_interrupt = genphy_handle_interrupt_no_ack,
		.suspend	= genphy_suspend,
		.resume		= genphy_resume,
	},
};

module_phy_driver(realtek_drvs);

static const struct mdio_device_id __maybe_unused realtek_tbl[] = {
	{ PHY_ID_MATCH_VENDOR(0x001cc800) },
	{ }
};

MODULE_DEVICE_TABLE(mdio, realtek_tbl);