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#include <linux/kernel.h>
27#include <linux/module.h>
28#include <linux/phy.h>
29#include <linux/micrel_phy.h>
30#include <linux/of.h>
31#include <linux/clk.h>
32
33
34#define MII_KSZPHY_OMSO 0x16
35#define KSZPHY_OMSO_B_CAST_OFF BIT(9)
36#define KSZPHY_OMSO_NAND_TREE_ON BIT(5)
37#define KSZPHY_OMSO_RMII_OVERRIDE BIT(1)
38#define KSZPHY_OMSO_MII_OVERRIDE BIT(0)
39
40
41#define MII_KSZPHY_INTCS 0x1B
42#define KSZPHY_INTCS_JABBER BIT(15)
43#define KSZPHY_INTCS_RECEIVE_ERR BIT(14)
44#define KSZPHY_INTCS_PAGE_RECEIVE BIT(13)
45#define KSZPHY_INTCS_PARELLEL BIT(12)
46#define KSZPHY_INTCS_LINK_PARTNER_ACK BIT(11)
47#define KSZPHY_INTCS_LINK_DOWN BIT(10)
48#define KSZPHY_INTCS_REMOTE_FAULT BIT(9)
49#define KSZPHY_INTCS_LINK_UP BIT(8)
50#define KSZPHY_INTCS_ALL (KSZPHY_INTCS_LINK_UP |\
51 KSZPHY_INTCS_LINK_DOWN)
52
53
54#define MII_KSZPHY_CTRL_1 0x1e
55
56
57#define MII_KSZPHY_CTRL_2 0x1f
58#define MII_KSZPHY_CTRL MII_KSZPHY_CTRL_2
59
60#define KSZPHY_CTRL_INT_ACTIVE_HIGH BIT(9)
61#define KSZPHY_RMII_REF_CLK_SEL BIT(7)
62
63
64#define MII_KSZPHY_EXTREG 0x0b
65#define KSZPHY_EXTREG_WRITE 0x8000
66
67#define MII_KSZPHY_EXTREG_WRITE 0x0c
68#define MII_KSZPHY_EXTREG_READ 0x0d
69
70
71#define MII_KSZPHY_CLK_CONTROL_PAD_SKEW 0x104
72#define MII_KSZPHY_RX_DATA_PAD_SKEW 0x105
73#define MII_KSZPHY_TX_DATA_PAD_SKEW 0x106
74
75#define PS_TO_REG 200
76
77struct kszphy_hw_stat {
78 const char *string;
79 u8 reg;
80 u8 bits;
81};
82
83static struct kszphy_hw_stat kszphy_hw_stats[] = {
84 { "phy_receive_errors", 21, 16},
85 { "phy_idle_errors", 10, 8 },
86};
87
88struct kszphy_type {
89 u32 led_mode_reg;
90 u16 interrupt_level_mask;
91 bool has_broadcast_disable;
92 bool has_nand_tree_disable;
93 bool has_rmii_ref_clk_sel;
94};
95
96struct kszphy_priv {
97 const struct kszphy_type *type;
98 int led_mode;
99 bool rmii_ref_clk_sel;
100 bool rmii_ref_clk_sel_val;
101 u64 stats[ARRAY_SIZE(kszphy_hw_stats)];
102};
103
104static const struct kszphy_type ksz8021_type = {
105 .led_mode_reg = MII_KSZPHY_CTRL_2,
106 .has_broadcast_disable = true,
107 .has_nand_tree_disable = true,
108 .has_rmii_ref_clk_sel = true,
109};
110
111static const struct kszphy_type ksz8041_type = {
112 .led_mode_reg = MII_KSZPHY_CTRL_1,
113};
114
115static const struct kszphy_type ksz8051_type = {
116 .led_mode_reg = MII_KSZPHY_CTRL_2,
117 .has_nand_tree_disable = true,
118};
119
120static const struct kszphy_type ksz8081_type = {
121 .led_mode_reg = MII_KSZPHY_CTRL_2,
122 .has_broadcast_disable = true,
123 .has_nand_tree_disable = true,
124 .has_rmii_ref_clk_sel = true,
125};
126
127static const struct kszphy_type ks8737_type = {
128 .interrupt_level_mask = BIT(14),
129};
130
131static const struct kszphy_type ksz9021_type = {
132 .interrupt_level_mask = BIT(14),
133};
134
135static int kszphy_extended_write(struct phy_device *phydev,
136 u32 regnum, u16 val)
137{
138 phy_write(phydev, MII_KSZPHY_EXTREG, KSZPHY_EXTREG_WRITE | regnum);
139 return phy_write(phydev, MII_KSZPHY_EXTREG_WRITE, val);
140}
141
142static int kszphy_extended_read(struct phy_device *phydev,
143 u32 regnum)
144{
145 phy_write(phydev, MII_KSZPHY_EXTREG, regnum);
146 return phy_read(phydev, MII_KSZPHY_EXTREG_READ);
147}
148
149static int kszphy_ack_interrupt(struct phy_device *phydev)
150{
151
152 int rc;
153
154 rc = phy_read(phydev, MII_KSZPHY_INTCS);
155
156 return (rc < 0) ? rc : 0;
157}
158
159static int kszphy_config_intr(struct phy_device *phydev)
160{
161 const struct kszphy_type *type = phydev->drv->driver_data;
162 int temp;
163 u16 mask;
164
165 if (type && type->interrupt_level_mask)
166 mask = type->interrupt_level_mask;
167 else
168 mask = KSZPHY_CTRL_INT_ACTIVE_HIGH;
169
170
171 temp = phy_read(phydev, MII_KSZPHY_CTRL);
172 if (temp < 0)
173 return temp;
174 temp &= ~mask;
175 phy_write(phydev, MII_KSZPHY_CTRL, temp);
176
177
178 if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
179 temp = KSZPHY_INTCS_ALL;
180 else
181 temp = 0;
182
183 return phy_write(phydev, MII_KSZPHY_INTCS, temp);
184}
185
186static int kszphy_rmii_clk_sel(struct phy_device *phydev, bool val)
187{
188 int ctrl;
189
190 ctrl = phy_read(phydev, MII_KSZPHY_CTRL);
191 if (ctrl < 0)
192 return ctrl;
193
194 if (val)
195 ctrl |= KSZPHY_RMII_REF_CLK_SEL;
196 else
197 ctrl &= ~KSZPHY_RMII_REF_CLK_SEL;
198
199 return phy_write(phydev, MII_KSZPHY_CTRL, ctrl);
200}
201
202static int kszphy_setup_led(struct phy_device *phydev, u32 reg, int val)
203{
204 int rc, temp, shift;
205
206 switch (reg) {
207 case MII_KSZPHY_CTRL_1:
208 shift = 14;
209 break;
210 case MII_KSZPHY_CTRL_2:
211 shift = 4;
212 break;
213 default:
214 return -EINVAL;
215 }
216
217 temp = phy_read(phydev, reg);
218 if (temp < 0) {
219 rc = temp;
220 goto out;
221 }
222
223 temp &= ~(3 << shift);
224 temp |= val << shift;
225 rc = phy_write(phydev, reg, temp);
226out:
227 if (rc < 0)
228 phydev_err(phydev, "failed to set led mode\n");
229
230 return rc;
231}
232
233
234
235
236static int kszphy_broadcast_disable(struct phy_device *phydev)
237{
238 int ret;
239
240 ret = phy_read(phydev, MII_KSZPHY_OMSO);
241 if (ret < 0)
242 goto out;
243
244 ret = phy_write(phydev, MII_KSZPHY_OMSO, ret | KSZPHY_OMSO_B_CAST_OFF);
245out:
246 if (ret)
247 phydev_err(phydev, "failed to disable broadcast address\n");
248
249 return ret;
250}
251
252static int kszphy_nand_tree_disable(struct phy_device *phydev)
253{
254 int ret;
255
256 ret = phy_read(phydev, MII_KSZPHY_OMSO);
257 if (ret < 0)
258 goto out;
259
260 if (!(ret & KSZPHY_OMSO_NAND_TREE_ON))
261 return 0;
262
263 ret = phy_write(phydev, MII_KSZPHY_OMSO,
264 ret & ~KSZPHY_OMSO_NAND_TREE_ON);
265out:
266 if (ret)
267 phydev_err(phydev, "failed to disable NAND tree mode\n");
268
269 return ret;
270}
271
272
273static int kszphy_config_reset(struct phy_device *phydev)
274{
275 struct kszphy_priv *priv = phydev->priv;
276 int ret;
277
278 if (priv->rmii_ref_clk_sel) {
279 ret = kszphy_rmii_clk_sel(phydev, priv->rmii_ref_clk_sel_val);
280 if (ret) {
281 phydev_err(phydev,
282 "failed to set rmii reference clock\n");
283 return ret;
284 }
285 }
286
287 if (priv->led_mode >= 0)
288 kszphy_setup_led(phydev, priv->type->led_mode_reg, priv->led_mode);
289
290 return 0;
291}
292
293static int kszphy_config_init(struct phy_device *phydev)
294{
295 struct kszphy_priv *priv = phydev->priv;
296 const struct kszphy_type *type;
297
298 if (!priv)
299 return 0;
300
301 type = priv->type;
302
303 if (type->has_broadcast_disable)
304 kszphy_broadcast_disable(phydev);
305
306 if (type->has_nand_tree_disable)
307 kszphy_nand_tree_disable(phydev);
308
309 return kszphy_config_reset(phydev);
310}
311
312static int ksz8041_config_init(struct phy_device *phydev)
313{
314 struct device_node *of_node = phydev->mdio.dev.of_node;
315
316
317 if (of_property_read_bool(of_node, "micrel,fiber-mode")) {
318 phydev->dev_flags |= MICREL_PHY_FXEN;
319 phydev->supported &= SUPPORTED_100baseT_Full |
320 SUPPORTED_100baseT_Half;
321 phydev->supported |= SUPPORTED_FIBRE;
322 phydev->advertising &= ADVERTISED_100baseT_Full |
323 ADVERTISED_100baseT_Half;
324 phydev->advertising |= ADVERTISED_FIBRE;
325 phydev->autoneg = AUTONEG_DISABLE;
326 }
327
328 return kszphy_config_init(phydev);
329}
330
331static int ksz8041_config_aneg(struct phy_device *phydev)
332{
333
334 if (phydev->dev_flags & MICREL_PHY_FXEN) {
335 phydev->speed = SPEED_100;
336 return 0;
337 }
338
339 return genphy_config_aneg(phydev);
340}
341
342static int ksz9021_load_values_from_of(struct phy_device *phydev,
343 const struct device_node *of_node,
344 u16 reg,
345 const char *field1, const char *field2,
346 const char *field3, const char *field4)
347{
348 int val1 = -1;
349 int val2 = -2;
350 int val3 = -3;
351 int val4 = -4;
352 int newval;
353 int matches = 0;
354
355 if (!of_property_read_u32(of_node, field1, &val1))
356 matches++;
357
358 if (!of_property_read_u32(of_node, field2, &val2))
359 matches++;
360
361 if (!of_property_read_u32(of_node, field3, &val3))
362 matches++;
363
364 if (!of_property_read_u32(of_node, field4, &val4))
365 matches++;
366
367 if (!matches)
368 return 0;
369
370 if (matches < 4)
371 newval = kszphy_extended_read(phydev, reg);
372 else
373 newval = 0;
374
375 if (val1 != -1)
376 newval = ((newval & 0xfff0) | ((val1 / PS_TO_REG) & 0xf) << 0);
377
378 if (val2 != -2)
379 newval = ((newval & 0xff0f) | ((val2 / PS_TO_REG) & 0xf) << 4);
380
381 if (val3 != -3)
382 newval = ((newval & 0xf0ff) | ((val3 / PS_TO_REG) & 0xf) << 8);
383
384 if (val4 != -4)
385 newval = ((newval & 0x0fff) | ((val4 / PS_TO_REG) & 0xf) << 12);
386
387 return kszphy_extended_write(phydev, reg, newval);
388}
389
390static int ksz9021_config_init(struct phy_device *phydev)
391{
392 const struct device *dev = &phydev->mdio.dev;
393 const struct device_node *of_node = dev->of_node;
394 const struct device *dev_walker;
395
396
397
398
399
400 dev_walker = &phydev->mdio.dev;
401 do {
402 of_node = dev_walker->of_node;
403 dev_walker = dev_walker->parent;
404
405 } while (!of_node && dev_walker);
406
407 if (of_node) {
408 ksz9021_load_values_from_of(phydev, of_node,
409 MII_KSZPHY_CLK_CONTROL_PAD_SKEW,
410 "txen-skew-ps", "txc-skew-ps",
411 "rxdv-skew-ps", "rxc-skew-ps");
412 ksz9021_load_values_from_of(phydev, of_node,
413 MII_KSZPHY_RX_DATA_PAD_SKEW,
414 "rxd0-skew-ps", "rxd1-skew-ps",
415 "rxd2-skew-ps", "rxd3-skew-ps");
416 ksz9021_load_values_from_of(phydev, of_node,
417 MII_KSZPHY_TX_DATA_PAD_SKEW,
418 "txd0-skew-ps", "txd1-skew-ps",
419 "txd2-skew-ps", "txd3-skew-ps");
420 }
421 return 0;
422}
423
424#define MII_KSZ9031RN_MMD_CTRL_REG 0x0d
425#define MII_KSZ9031RN_MMD_REGDATA_REG 0x0e
426#define OP_DATA 1
427#define KSZ9031_PS_TO_REG 60
428
429
430
431#define MII_KSZ9031RN_FLP_BURST_TX_LO 3
432#define MII_KSZ9031RN_FLP_BURST_TX_HI 4
433
434
435#define MII_KSZ9031RN_CONTROL_PAD_SKEW 4
436#define MII_KSZ9031RN_RX_DATA_PAD_SKEW 5
437#define MII_KSZ9031RN_TX_DATA_PAD_SKEW 6
438#define MII_KSZ9031RN_CLK_PAD_SKEW 8
439
440
441#define MII_KSZ9031RN_EDPD 0x23
442#define MII_KSZ9031RN_EDPD_ENABLE BIT(0)
443
444static int ksz9031_extended_write(struct phy_device *phydev,
445 u8 mode, u32 dev_addr, u32 regnum, u16 val)
446{
447 phy_write(phydev, MII_KSZ9031RN_MMD_CTRL_REG, dev_addr);
448 phy_write(phydev, MII_KSZ9031RN_MMD_REGDATA_REG, regnum);
449 phy_write(phydev, MII_KSZ9031RN_MMD_CTRL_REG, (mode << 14) | dev_addr);
450 return phy_write(phydev, MII_KSZ9031RN_MMD_REGDATA_REG, val);
451}
452
453static int ksz9031_extended_read(struct phy_device *phydev,
454 u8 mode, u32 dev_addr, u32 regnum)
455{
456 phy_write(phydev, MII_KSZ9031RN_MMD_CTRL_REG, dev_addr);
457 phy_write(phydev, MII_KSZ9031RN_MMD_REGDATA_REG, regnum);
458 phy_write(phydev, MII_KSZ9031RN_MMD_CTRL_REG, (mode << 14) | dev_addr);
459 return phy_read(phydev, MII_KSZ9031RN_MMD_REGDATA_REG);
460}
461
462static int ksz9031_of_load_skew_values(struct phy_device *phydev,
463 const struct device_node *of_node,
464 u16 reg, size_t field_sz,
465 const char *field[], u8 numfields)
466{
467 int val[4] = {-1, -2, -3, -4};
468 int matches = 0;
469 u16 mask;
470 u16 maxval;
471 u16 newval;
472 int i;
473
474 for (i = 0; i < numfields; i++)
475 if (!of_property_read_u32(of_node, field[i], val + i))
476 matches++;
477
478 if (!matches)
479 return 0;
480
481 if (matches < numfields)
482 newval = ksz9031_extended_read(phydev, OP_DATA, 2, reg);
483 else
484 newval = 0;
485
486 maxval = (field_sz == 4) ? 0xf : 0x1f;
487 for (i = 0; i < numfields; i++)
488 if (val[i] != -(i + 1)) {
489 mask = 0xffff;
490 mask ^= maxval << (field_sz * i);
491 newval = (newval & mask) |
492 (((val[i] / KSZ9031_PS_TO_REG) & maxval)
493 << (field_sz * i));
494 }
495
496 return ksz9031_extended_write(phydev, OP_DATA, 2, reg, newval);
497}
498
499
500static int ksz9031_center_flp_timing(struct phy_device *phydev)
501{
502 int result;
503
504 result = ksz9031_extended_write(phydev, OP_DATA, 0,
505 MII_KSZ9031RN_FLP_BURST_TX_HI, 0x0006);
506 if (result)
507 return result;
508
509 result = ksz9031_extended_write(phydev, OP_DATA, 0,
510 MII_KSZ9031RN_FLP_BURST_TX_LO, 0x1A80);
511 if (result)
512 return result;
513
514 return genphy_restart_aneg(phydev);
515}
516
517
518static int ksz9031_enable_edpd(struct phy_device *phydev)
519{
520 int reg;
521
522 reg = ksz9031_extended_read(phydev, OP_DATA, 0x1C, MII_KSZ9031RN_EDPD);
523 if (reg < 0)
524 return reg;
525 return ksz9031_extended_write(phydev, OP_DATA, 0x1C, MII_KSZ9031RN_EDPD,
526 reg | MII_KSZ9031RN_EDPD_ENABLE);
527}
528
529static int ksz9031_config_init(struct phy_device *phydev)
530{
531 const struct device *dev = &phydev->mdio.dev;
532 const struct device_node *of_node = dev->of_node;
533 static const char *clk_skews[2] = {"rxc-skew-ps", "txc-skew-ps"};
534 static const char *rx_data_skews[4] = {
535 "rxd0-skew-ps", "rxd1-skew-ps",
536 "rxd2-skew-ps", "rxd3-skew-ps"
537 };
538 static const char *tx_data_skews[4] = {
539 "txd0-skew-ps", "txd1-skew-ps",
540 "txd2-skew-ps", "txd3-skew-ps"
541 };
542 static const char *control_skews[2] = {"txen-skew-ps", "rxdv-skew-ps"};
543 const struct device *dev_walker;
544 int result;
545
546 result = ksz9031_enable_edpd(phydev);
547 if (result < 0)
548 return result;
549
550
551
552
553
554 dev_walker = &phydev->mdio.dev;
555 do {
556 of_node = dev_walker->of_node;
557 dev_walker = dev_walker->parent;
558 } while (!of_node && dev_walker);
559
560 if (of_node) {
561 ksz9031_of_load_skew_values(phydev, of_node,
562 MII_KSZ9031RN_CLK_PAD_SKEW, 5,
563 clk_skews, 2);
564
565 ksz9031_of_load_skew_values(phydev, of_node,
566 MII_KSZ9031RN_CONTROL_PAD_SKEW, 4,
567 control_skews, 2);
568
569 ksz9031_of_load_skew_values(phydev, of_node,
570 MII_KSZ9031RN_RX_DATA_PAD_SKEW, 4,
571 rx_data_skews, 4);
572
573 ksz9031_of_load_skew_values(phydev, of_node,
574 MII_KSZ9031RN_TX_DATA_PAD_SKEW, 4,
575 tx_data_skews, 4);
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592 if (of_property_read_bool(of_node, "micrel,force-master")) {
593 result = phy_read(phydev, MII_CTRL1000);
594 if (result < 0)
595 goto err_force_master;
596
597
598 result |= CTL1000_ENABLE_MASTER | CTL1000_AS_MASTER;
599 result = phy_write(phydev, MII_CTRL1000, result);
600 if (result < 0)
601 goto err_force_master;
602 }
603 }
604
605 return ksz9031_center_flp_timing(phydev);
606
607err_force_master:
608 phydev_err(phydev, "failed to force the phy to master mode\n");
609 return result;
610}
611
612#define KSZ8873MLL_GLOBAL_CONTROL_4 0x06
613#define KSZ8873MLL_GLOBAL_CONTROL_4_DUPLEX BIT(6)
614#define KSZ8873MLL_GLOBAL_CONTROL_4_SPEED BIT(4)
615static int ksz8873mll_read_status(struct phy_device *phydev)
616{
617 int regval;
618
619
620 regval = phy_read(phydev, KSZ8873MLL_GLOBAL_CONTROL_4);
621
622 regval = phy_read(phydev, KSZ8873MLL_GLOBAL_CONTROL_4);
623
624 if (regval & KSZ8873MLL_GLOBAL_CONTROL_4_DUPLEX)
625 phydev->duplex = DUPLEX_HALF;
626 else
627 phydev->duplex = DUPLEX_FULL;
628
629 if (regval & KSZ8873MLL_GLOBAL_CONTROL_4_SPEED)
630 phydev->speed = SPEED_10;
631 else
632 phydev->speed = SPEED_100;
633
634 phydev->link = 1;
635 phydev->pause = phydev->asym_pause = 0;
636
637 return 0;
638}
639
640static int ksz9031_read_status(struct phy_device *phydev)
641{
642 int err;
643 int regval;
644
645 err = genphy_read_status(phydev);
646 if (err)
647 return err;
648
649
650
651
652 regval = phy_read(phydev, MII_STAT1000);
653 if ((regval & 0xFF) == 0xFF) {
654 phy_init_hw(phydev);
655 phydev->link = 0;
656 if (phydev->drv->config_intr && phy_interrupt_is_valid(phydev))
657 phydev->drv->config_intr(phydev);
658 return genphy_config_aneg(phydev);
659 }
660
661 return 0;
662}
663
664static int ksz8873mll_config_aneg(struct phy_device *phydev)
665{
666 return 0;
667}
668
669static int kszphy_get_sset_count(struct phy_device *phydev)
670{
671 return ARRAY_SIZE(kszphy_hw_stats);
672}
673
674static void kszphy_get_strings(struct phy_device *phydev, u8 *data)
675{
676 int i;
677
678 for (i = 0; i < ARRAY_SIZE(kszphy_hw_stats); i++) {
679 strlcpy(data + i * ETH_GSTRING_LEN,
680 kszphy_hw_stats[i].string, ETH_GSTRING_LEN);
681 }
682}
683
684static u64 kszphy_get_stat(struct phy_device *phydev, int i)
685{
686 struct kszphy_hw_stat stat = kszphy_hw_stats[i];
687 struct kszphy_priv *priv = phydev->priv;
688 int val;
689 u64 ret;
690
691 val = phy_read(phydev, stat.reg);
692 if (val < 0) {
693 ret = U64_MAX;
694 } else {
695 val = val & ((1 << stat.bits) - 1);
696 priv->stats[i] += val;
697 ret = priv->stats[i];
698 }
699
700 return ret;
701}
702
703static void kszphy_get_stats(struct phy_device *phydev,
704 struct ethtool_stats *stats, u64 *data)
705{
706 int i;
707
708 for (i = 0; i < ARRAY_SIZE(kszphy_hw_stats); i++)
709 data[i] = kszphy_get_stat(phydev, i);
710}
711
712static int kszphy_suspend(struct phy_device *phydev)
713{
714
715 if (phy_interrupt_is_valid(phydev)) {
716 phydev->interrupts = PHY_INTERRUPT_DISABLED;
717 if (phydev->drv->config_intr)
718 phydev->drv->config_intr(phydev);
719 }
720
721 return genphy_suspend(phydev);
722}
723
724static int kszphy_resume(struct phy_device *phydev)
725{
726 int ret;
727
728 genphy_resume(phydev);
729
730 ret = kszphy_config_reset(phydev);
731 if (ret)
732 return ret;
733
734
735 if (phy_interrupt_is_valid(phydev)) {
736 phydev->interrupts = PHY_INTERRUPT_ENABLED;
737 if (phydev->drv->config_intr)
738 phydev->drv->config_intr(phydev);
739 }
740
741 return 0;
742}
743
744static int kszphy_probe(struct phy_device *phydev)
745{
746 const struct kszphy_type *type = phydev->drv->driver_data;
747 const struct device_node *np = phydev->mdio.dev.of_node;
748 struct kszphy_priv *priv;
749 struct clk *clk;
750 int ret;
751
752 priv = devm_kzalloc(&phydev->mdio.dev, sizeof(*priv), GFP_KERNEL);
753 if (!priv)
754 return -ENOMEM;
755
756 phydev->priv = priv;
757
758 priv->type = type;
759
760 if (type->led_mode_reg) {
761 ret = of_property_read_u32(np, "micrel,led-mode",
762 &priv->led_mode);
763 if (ret)
764 priv->led_mode = -1;
765
766 if (priv->led_mode > 3) {
767 phydev_err(phydev, "invalid led mode: 0x%02x\n",
768 priv->led_mode);
769 priv->led_mode = -1;
770 }
771 } else {
772 priv->led_mode = -1;
773 }
774
775 clk = devm_clk_get(&phydev->mdio.dev, "rmii-ref");
776
777 if (!IS_ERR_OR_NULL(clk)) {
778 unsigned long rate = clk_get_rate(clk);
779 bool rmii_ref_clk_sel_25_mhz;
780
781 priv->rmii_ref_clk_sel = type->has_rmii_ref_clk_sel;
782 rmii_ref_clk_sel_25_mhz = of_property_read_bool(np,
783 "micrel,rmii-reference-clock-select-25-mhz");
784
785 if (rate > 24500000 && rate < 25500000) {
786 priv->rmii_ref_clk_sel_val = rmii_ref_clk_sel_25_mhz;
787 } else if (rate > 49500000 && rate < 50500000) {
788 priv->rmii_ref_clk_sel_val = !rmii_ref_clk_sel_25_mhz;
789 } else {
790 phydev_err(phydev, "Clock rate out of range: %ld\n",
791 rate);
792 return -EINVAL;
793 }
794 }
795
796
797 if (phydev->dev_flags & MICREL_PHY_50MHZ_CLK) {
798 priv->rmii_ref_clk_sel = true;
799 priv->rmii_ref_clk_sel_val = true;
800 }
801
802 return 0;
803}
804
805static struct phy_driver ksphy_driver[] = {
806{
807 .phy_id = PHY_ID_KS8737,
808 .phy_id_mask = MICREL_PHY_ID_MASK,
809 .name = "Micrel KS8737",
810 .features = PHY_BASIC_FEATURES,
811 .flags = PHY_HAS_INTERRUPT,
812 .driver_data = &ks8737_type,
813 .config_init = kszphy_config_init,
814 .ack_interrupt = kszphy_ack_interrupt,
815 .config_intr = kszphy_config_intr,
816 .suspend = genphy_suspend,
817 .resume = genphy_resume,
818}, {
819 .phy_id = PHY_ID_KSZ8021,
820 .phy_id_mask = 0x00ffffff,
821 .name = "Micrel KSZ8021 or KSZ8031",
822 .features = PHY_BASIC_FEATURES,
823 .flags = PHY_HAS_INTERRUPT,
824 .driver_data = &ksz8021_type,
825 .probe = kszphy_probe,
826 .config_init = kszphy_config_init,
827 .ack_interrupt = kszphy_ack_interrupt,
828 .config_intr = kszphy_config_intr,
829 .get_sset_count = kszphy_get_sset_count,
830 .get_strings = kszphy_get_strings,
831 .get_stats = kszphy_get_stats,
832 .suspend = genphy_suspend,
833 .resume = genphy_resume,
834}, {
835 .phy_id = PHY_ID_KSZ8031,
836 .phy_id_mask = 0x00ffffff,
837 .name = "Micrel KSZ8031",
838 .features = PHY_BASIC_FEATURES,
839 .flags = PHY_HAS_INTERRUPT,
840 .driver_data = &ksz8021_type,
841 .probe = kszphy_probe,
842 .config_init = kszphy_config_init,
843 .ack_interrupt = kszphy_ack_interrupt,
844 .config_intr = kszphy_config_intr,
845 .get_sset_count = kszphy_get_sset_count,
846 .get_strings = kszphy_get_strings,
847 .get_stats = kszphy_get_stats,
848 .suspend = genphy_suspend,
849 .resume = genphy_resume,
850}, {
851 .phy_id = PHY_ID_KSZ8041,
852 .phy_id_mask = MICREL_PHY_ID_MASK,
853 .name = "Micrel KSZ8041",
854 .features = PHY_BASIC_FEATURES,
855 .flags = PHY_HAS_INTERRUPT,
856 .driver_data = &ksz8041_type,
857 .probe = kszphy_probe,
858 .config_init = ksz8041_config_init,
859 .config_aneg = ksz8041_config_aneg,
860 .ack_interrupt = kszphy_ack_interrupt,
861 .config_intr = kszphy_config_intr,
862 .get_sset_count = kszphy_get_sset_count,
863 .get_strings = kszphy_get_strings,
864 .get_stats = kszphy_get_stats,
865 .suspend = genphy_suspend,
866 .resume = genphy_resume,
867}, {
868 .phy_id = PHY_ID_KSZ8041RNLI,
869 .phy_id_mask = MICREL_PHY_ID_MASK,
870 .name = "Micrel KSZ8041RNLI",
871 .features = PHY_BASIC_FEATURES,
872 .flags = PHY_HAS_INTERRUPT,
873 .driver_data = &ksz8041_type,
874 .probe = kszphy_probe,
875 .config_init = kszphy_config_init,
876 .ack_interrupt = kszphy_ack_interrupt,
877 .config_intr = kszphy_config_intr,
878 .get_sset_count = kszphy_get_sset_count,
879 .get_strings = kszphy_get_strings,
880 .get_stats = kszphy_get_stats,
881 .suspend = genphy_suspend,
882 .resume = genphy_resume,
883}, {
884 .phy_id = PHY_ID_KSZ8051,
885 .phy_id_mask = MICREL_PHY_ID_MASK,
886 .name = "Micrel KSZ8051",
887 .features = PHY_BASIC_FEATURES,
888 .flags = PHY_HAS_INTERRUPT,
889 .driver_data = &ksz8051_type,
890 .probe = kszphy_probe,
891 .config_init = kszphy_config_init,
892 .ack_interrupt = kszphy_ack_interrupt,
893 .config_intr = kszphy_config_intr,
894 .get_sset_count = kszphy_get_sset_count,
895 .get_strings = kszphy_get_strings,
896 .get_stats = kszphy_get_stats,
897 .suspend = genphy_suspend,
898 .resume = genphy_resume,
899}, {
900 .phy_id = PHY_ID_KSZ8001,
901 .name = "Micrel KSZ8001 or KS8721",
902 .phy_id_mask = 0x00fffffc,
903 .features = PHY_BASIC_FEATURES,
904 .flags = PHY_HAS_INTERRUPT,
905 .driver_data = &ksz8041_type,
906 .probe = kszphy_probe,
907 .config_init = kszphy_config_init,
908 .ack_interrupt = kszphy_ack_interrupt,
909 .config_intr = kszphy_config_intr,
910 .get_sset_count = kszphy_get_sset_count,
911 .get_strings = kszphy_get_strings,
912 .get_stats = kszphy_get_stats,
913 .suspend = genphy_suspend,
914 .resume = genphy_resume,
915}, {
916 .phy_id = PHY_ID_KSZ8081,
917 .name = "Micrel KSZ8081 or KSZ8091",
918 .phy_id_mask = MICREL_PHY_ID_MASK,
919 .features = PHY_BASIC_FEATURES,
920 .flags = PHY_HAS_INTERRUPT,
921 .driver_data = &ksz8081_type,
922 .probe = kszphy_probe,
923 .config_init = kszphy_config_init,
924 .ack_interrupt = kszphy_ack_interrupt,
925 .config_intr = kszphy_config_intr,
926 .get_sset_count = kszphy_get_sset_count,
927 .get_strings = kszphy_get_strings,
928 .get_stats = kszphy_get_stats,
929 .suspend = kszphy_suspend,
930 .resume = kszphy_resume,
931}, {
932 .phy_id = PHY_ID_KSZ8061,
933 .name = "Micrel KSZ8061",
934 .phy_id_mask = MICREL_PHY_ID_MASK,
935 .features = PHY_BASIC_FEATURES,
936 .flags = PHY_HAS_INTERRUPT,
937 .config_init = kszphy_config_init,
938 .ack_interrupt = kszphy_ack_interrupt,
939 .config_intr = kszphy_config_intr,
940 .suspend = genphy_suspend,
941 .resume = genphy_resume,
942}, {
943 .phy_id = PHY_ID_KSZ9021,
944 .phy_id_mask = 0x000ffffe,
945 .name = "Micrel KSZ9021 Gigabit PHY",
946 .features = PHY_GBIT_FEATURES,
947 .flags = PHY_HAS_INTERRUPT,
948 .driver_data = &ksz9021_type,
949 .probe = kszphy_probe,
950 .config_init = ksz9021_config_init,
951 .ack_interrupt = kszphy_ack_interrupt,
952 .config_intr = kszphy_config_intr,
953 .get_sset_count = kszphy_get_sset_count,
954 .get_strings = kszphy_get_strings,
955 .get_stats = kszphy_get_stats,
956 .suspend = genphy_suspend,
957 .resume = genphy_resume,
958 .read_mmd = genphy_read_mmd_unsupported,
959 .write_mmd = genphy_write_mmd_unsupported,
960}, {
961 .phy_id = PHY_ID_KSZ9031,
962 .phy_id_mask = MICREL_PHY_ID_MASK,
963 .name = "Micrel KSZ9031 Gigabit PHY",
964 .features = PHY_GBIT_FEATURES,
965 .flags = PHY_HAS_INTERRUPT,
966 .driver_data = &ksz9021_type,
967 .probe = kszphy_probe,
968 .config_init = ksz9031_config_init,
969 .read_status = ksz9031_read_status,
970 .ack_interrupt = kszphy_ack_interrupt,
971 .config_intr = kszphy_config_intr,
972 .get_sset_count = kszphy_get_sset_count,
973 .get_strings = kszphy_get_strings,
974 .get_stats = kszphy_get_stats,
975 .suspend = genphy_suspend,
976 .resume = kszphy_resume,
977}, {
978 .phy_id = PHY_ID_KSZ8873MLL,
979 .phy_id_mask = MICREL_PHY_ID_MASK,
980 .name = "Micrel KSZ8873MLL Switch",
981 .config_init = kszphy_config_init,
982 .config_aneg = ksz8873mll_config_aneg,
983 .read_status = ksz8873mll_read_status,
984 .suspend = genphy_suspend,
985 .resume = genphy_resume,
986}, {
987 .phy_id = PHY_ID_KSZ886X,
988 .phy_id_mask = MICREL_PHY_ID_MASK,
989 .name = "Micrel KSZ886X Switch",
990 .features = PHY_BASIC_FEATURES,
991 .flags = PHY_HAS_INTERRUPT,
992 .config_init = kszphy_config_init,
993 .suspend = genphy_suspend,
994 .resume = genphy_resume,
995}, {
996 .phy_id = PHY_ID_KSZ8795,
997 .phy_id_mask = MICREL_PHY_ID_MASK,
998 .name = "Micrel KSZ8795",
999 .features = PHY_BASIC_FEATURES,
1000 .flags = PHY_HAS_INTERRUPT,
1001 .config_init = kszphy_config_init,
1002 .config_aneg = ksz8873mll_config_aneg,
1003 .read_status = ksz8873mll_read_status,
1004 .suspend = genphy_suspend,
1005 .resume = genphy_resume,
1006}, {
1007 .phy_id = PHY_ID_KSZ9477,
1008 .phy_id_mask = MICREL_PHY_ID_MASK,
1009 .name = "Microchip KSZ9477",
1010 .features = PHY_GBIT_FEATURES,
1011 .config_init = kszphy_config_init,
1012 .suspend = genphy_suspend,
1013 .resume = genphy_resume,
1014} };
1015
1016module_phy_driver(ksphy_driver);
1017
1018MODULE_DESCRIPTION("Micrel PHY driver");
1019MODULE_AUTHOR("David J. Choi");
1020MODULE_LICENSE("GPL");
1021
1022static struct mdio_device_id __maybe_unused micrel_tbl[] = {
1023 { PHY_ID_KSZ9021, 0x000ffffe },
1024 { PHY_ID_KSZ9031, MICREL_PHY_ID_MASK },
1025 { PHY_ID_KSZ8001, 0x00fffffc },
1026 { PHY_ID_KS8737, MICREL_PHY_ID_MASK },
1027 { PHY_ID_KSZ8021, 0x00ffffff },
1028 { PHY_ID_KSZ8031, 0x00ffffff },
1029 { PHY_ID_KSZ8041, MICREL_PHY_ID_MASK },
1030 { PHY_ID_KSZ8051, MICREL_PHY_ID_MASK },
1031 { PHY_ID_KSZ8061, MICREL_PHY_ID_MASK },
1032 { PHY_ID_KSZ8081, MICREL_PHY_ID_MASK },
1033 { PHY_ID_KSZ8873MLL, MICREL_PHY_ID_MASK },
1034 { PHY_ID_KSZ886X, MICREL_PHY_ID_MASK },
1035 { }
1036};
1037
1038MODULE_DEVICE_TABLE(mdio, micrel_tbl);
1039
