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1/*
2 * drivers/net/phy/micrel.c
3 *
4 * Driver for Micrel PHYs
5 *
6 * Author: David J. Choi
7 *
8 * Copyright (c) 2010-2013 Micrel, Inc.
9 * Copyright (c) 2014 Johan Hovold <johan@kernel.org>
10 *
11 * This program is free software; you can redistribute it and/or modify it
12 * under the terms of the GNU General Public License as published by the
13 * Free Software Foundation; either version 2 of the License, or (at your
14 * option) any later version.
15 *
16 * Support : Micrel Phys:
17 * Giga phys: ksz9021, ksz9031
18 * 100/10 Phys : ksz8001, ksz8721, ksz8737, ksz8041
19 * ksz8021, ksz8031, ksz8051,
20 * ksz8081, ksz8091,
21 * ksz8061,
22 * Switch : ksz8873, ksz886x
23 * ksz9477
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/* Operation Mode Strap Override */
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/* general Interrupt control/status reg in vendor specific block. */
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/* PHY Control 1 */
54#define MII_KSZPHY_CTRL_1 0x1e
55
56/* PHY Control 2 / PHY Control (if no PHY Control 1) */
57#define MII_KSZPHY_CTRL_2 0x1f
58#define MII_KSZPHY_CTRL MII_KSZPHY_CTRL_2
59/* bitmap of PHY register to set interrupt mode */
60#define KSZPHY_CTRL_INT_ACTIVE_HIGH BIT(9)
61#define KSZPHY_RMII_REF_CLK_SEL BIT(7)
62
63/* Write/read to/from extended registers */
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/* Extended registers */
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 /* bit[7..0] int status, which is a read and clear register. */
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 /* set the interrupt pin active low */
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 /* enable / disable interrupts */
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/* Disable PHY address 0 as the broadcast address, so that it can be used as a
234 * unique (non-broadcast) address on a shared bus.
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/* Some config bits need to be set again on resume, handle them here. */
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 /* Limit supported and advertised modes in fiber mode */
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 /* Skip auto-negotiation in fiber mode */
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 /* The Micrel driver has a deprecated option to place phy OF
397 * properties in the MAC node. Walk up the tree of devices to
398 * find a device with an OF node.
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/* Extended registers */
430/* MMD Address 0x0 */
431#define MII_KSZ9031RN_FLP_BURST_TX_LO 3
432#define MII_KSZ9031RN_FLP_BURST_TX_HI 4
433
434/* MMD Address 0x2 */
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/* MMD Address 0x1C */
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/* Center KSZ9031RNX FLP timing at 16ms. */
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/* Enable energy-detect power-down mode */
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 /* The Micrel driver has a deprecated option to place phy OF
551 * properties in the MAC node. Walk up the tree of devices to
552 * find a device with an OF node.
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 /* Silicon Errata Sheet (DS80000691D or DS80000692D):
578 * When the device links in the 1000BASE-T slave mode only,
579 * the optional 125MHz reference output clock (CLK125_NDO)
580 * has wide duty cycle variation.
581 *
582 * The optional CLK125_NDO clock does not meet the RGMII
583 * 45/55 percent (min/max) duty cycle requirement and therefore
584 * cannot be used directly by the MAC side for clocking
585 * applications that have setup/hold time requirements on
586 * rising and falling clock edges.
587 *
588 * Workaround:
589 * Force the phy to be the master to receive a stable clock
590 * which meets the duty cycle requirement.
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 /* enable master mode, config & prefer master */
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 /* dummy read */
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 /* Make sure the PHY is not broken. Read idle error count,
650 * and reset the PHY if it is maxed out.
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
684#ifndef UINT64_MAX
685#define UINT64_MAX (u64)(~((u64)0))
686#endif
687static u64 kszphy_get_stat(struct phy_device *phydev, int i)
688{
689 struct kszphy_hw_stat stat = kszphy_hw_stats[i];
690 struct kszphy_priv *priv = phydev->priv;
691 int val;
692 u64 ret;
693
694 val = phy_read(phydev, stat.reg);
695 if (val < 0) {
696 ret = UINT64_MAX;
697 } else {
698 val = val & ((1 << stat.bits) - 1);
699 priv->stats[i] += val;
700 ret = priv->stats[i];
701 }
702
703 return ret;
704}
705
706static void kszphy_get_stats(struct phy_device *phydev,
707 struct ethtool_stats *stats, u64 *data)
708{
709 int i;
710
711 for (i = 0; i < ARRAY_SIZE(kszphy_hw_stats); i++)
712 data[i] = kszphy_get_stat(phydev, i);
713}
714
715static int kszphy_suspend(struct phy_device *phydev)
716{
717 /* Disable PHY Interrupts */
718 if (phy_interrupt_is_valid(phydev)) {
719 phydev->interrupts = PHY_INTERRUPT_DISABLED;
720 if (phydev->drv->config_intr)
721 phydev->drv->config_intr(phydev);
722 }
723
724 return genphy_suspend(phydev);
725}
726
727static int kszphy_resume(struct phy_device *phydev)
728{
729 int ret;
730
731 genphy_resume(phydev);
732
733 ret = kszphy_config_reset(phydev);
734 if (ret)
735 return ret;
736
737 /* Enable PHY Interrupts */
738 if (phy_interrupt_is_valid(phydev)) {
739 phydev->interrupts = PHY_INTERRUPT_ENABLED;
740 if (phydev->drv->config_intr)
741 phydev->drv->config_intr(phydev);
742 }
743
744 return 0;
745}
746
747static int kszphy_probe(struct phy_device *phydev)
748{
749 const struct kszphy_type *type = phydev->drv->driver_data;
750 const struct device_node *np = phydev->mdio.dev.of_node;
751 struct kszphy_priv *priv;
752 struct clk *clk;
753 int ret;
754
755 priv = devm_kzalloc(&phydev->mdio.dev, sizeof(*priv), GFP_KERNEL);
756 if (!priv)
757 return -ENOMEM;
758
759 phydev->priv = priv;
760
761 priv->type = type;
762
763 if (type->led_mode_reg) {
764 ret = of_property_read_u32(np, "micrel,led-mode",
765 &priv->led_mode);
766 if (ret)
767 priv->led_mode = -1;
768
769 if (priv->led_mode > 3) {
770 phydev_err(phydev, "invalid led mode: 0x%02x\n",
771 priv->led_mode);
772 priv->led_mode = -1;
773 }
774 } else {
775 priv->led_mode = -1;
776 }
777
778 clk = devm_clk_get(&phydev->mdio.dev, "rmii-ref");
779 /* NOTE: clk may be NULL if building without CONFIG_HAVE_CLK */
780 if (!IS_ERR_OR_NULL(clk)) {
781 unsigned long rate = clk_get_rate(clk);
782 bool rmii_ref_clk_sel_25_mhz;
783
784 priv->rmii_ref_clk_sel = type->has_rmii_ref_clk_sel;
785 rmii_ref_clk_sel_25_mhz = of_property_read_bool(np,
786 "micrel,rmii-reference-clock-select-25-mhz");
787
788 if (rate > 24500000 && rate < 25500000) {
789 priv->rmii_ref_clk_sel_val = rmii_ref_clk_sel_25_mhz;
790 } else if (rate > 49500000 && rate < 50500000) {
791 priv->rmii_ref_clk_sel_val = !rmii_ref_clk_sel_25_mhz;
792 } else {
793 phydev_err(phydev, "Clock rate out of range: %ld\n",
794 rate);
795 return -EINVAL;
796 }
797 }
798
799 /* Support legacy board-file configuration */
800 if (phydev->dev_flags & MICREL_PHY_50MHZ_CLK) {
801 priv->rmii_ref_clk_sel = true;
802 priv->rmii_ref_clk_sel_val = true;
803 }
804
805 return 0;
806}
807
808static struct phy_driver ksphy_driver[] = {
809{
810 .phy_id = PHY_ID_KS8737,
811 .phy_id_mask = MICREL_PHY_ID_MASK,
812 .name = "Micrel KS8737",
813 .features = PHY_BASIC_FEATURES,
814 .flags = PHY_HAS_INTERRUPT,
815 .driver_data = &ks8737_type,
816 .config_init = kszphy_config_init,
817 .ack_interrupt = kszphy_ack_interrupt,
818 .config_intr = kszphy_config_intr,
819 .suspend = genphy_suspend,
820 .resume = genphy_resume,
821}, {
822 .phy_id = PHY_ID_KSZ8021,
823 .phy_id_mask = 0x00ffffff,
824 .name = "Micrel KSZ8021 or KSZ8031",
825 .features = PHY_BASIC_FEATURES,
826 .flags = PHY_HAS_INTERRUPT,
827 .driver_data = &ksz8021_type,
828 .probe = kszphy_probe,
829 .config_init = kszphy_config_init,
830 .ack_interrupt = kszphy_ack_interrupt,
831 .config_intr = kszphy_config_intr,
832 .get_sset_count = kszphy_get_sset_count,
833 .get_strings = kszphy_get_strings,
834 .get_stats = kszphy_get_stats,
835 .suspend = genphy_suspend,
836 .resume = genphy_resume,
837}, {
838 .phy_id = PHY_ID_KSZ8031,
839 .phy_id_mask = 0x00ffffff,
840 .name = "Micrel KSZ8031",
841 .features = PHY_BASIC_FEATURES,
842 .flags = PHY_HAS_INTERRUPT,
843 .driver_data = &ksz8021_type,
844 .probe = kszphy_probe,
845 .config_init = kszphy_config_init,
846 .ack_interrupt = kszphy_ack_interrupt,
847 .config_intr = kszphy_config_intr,
848 .get_sset_count = kszphy_get_sset_count,
849 .get_strings = kszphy_get_strings,
850 .get_stats = kszphy_get_stats,
851 .suspend = genphy_suspend,
852 .resume = genphy_resume,
853}, {
854 .phy_id = PHY_ID_KSZ8041,
855 .phy_id_mask = MICREL_PHY_ID_MASK,
856 .name = "Micrel KSZ8041",
857 .features = PHY_BASIC_FEATURES,
858 .flags = PHY_HAS_INTERRUPT,
859 .driver_data = &ksz8041_type,
860 .probe = kszphy_probe,
861 .config_init = ksz8041_config_init,
862 .config_aneg = ksz8041_config_aneg,
863 .ack_interrupt = kszphy_ack_interrupt,
864 .config_intr = kszphy_config_intr,
865 .get_sset_count = kszphy_get_sset_count,
866 .get_strings = kszphy_get_strings,
867 .get_stats = kszphy_get_stats,
868 .suspend = genphy_suspend,
869 .resume = genphy_resume,
870}, {
871 .phy_id = PHY_ID_KSZ8041RNLI,
872 .phy_id_mask = MICREL_PHY_ID_MASK,
873 .name = "Micrel KSZ8041RNLI",
874 .features = PHY_BASIC_FEATURES,
875 .flags = PHY_HAS_INTERRUPT,
876 .driver_data = &ksz8041_type,
877 .probe = kszphy_probe,
878 .config_init = kszphy_config_init,
879 .ack_interrupt = kszphy_ack_interrupt,
880 .config_intr = kszphy_config_intr,
881 .get_sset_count = kszphy_get_sset_count,
882 .get_strings = kszphy_get_strings,
883 .get_stats = kszphy_get_stats,
884 .suspend = genphy_suspend,
885 .resume = genphy_resume,
886}, {
887 .phy_id = PHY_ID_KSZ8051,
888 .phy_id_mask = MICREL_PHY_ID_MASK,
889 .name = "Micrel KSZ8051",
890 .features = PHY_BASIC_FEATURES,
891 .flags = PHY_HAS_INTERRUPT,
892 .driver_data = &ksz8051_type,
893 .probe = kszphy_probe,
894 .config_init = kszphy_config_init,
895 .ack_interrupt = kszphy_ack_interrupt,
896 .config_intr = kszphy_config_intr,
897 .get_sset_count = kszphy_get_sset_count,
898 .get_strings = kszphy_get_strings,
899 .get_stats = kszphy_get_stats,
900 .suspend = genphy_suspend,
901 .resume = genphy_resume,
902}, {
903 .phy_id = PHY_ID_KSZ8001,
904 .name = "Micrel KSZ8001 or KS8721",
905 .phy_id_mask = 0x00fffffc,
906 .features = PHY_BASIC_FEATURES,
907 .flags = PHY_HAS_INTERRUPT,
908 .driver_data = &ksz8041_type,
909 .probe = kszphy_probe,
910 .config_init = kszphy_config_init,
911 .ack_interrupt = kszphy_ack_interrupt,
912 .config_intr = kszphy_config_intr,
913 .get_sset_count = kszphy_get_sset_count,
914 .get_strings = kszphy_get_strings,
915 .get_stats = kszphy_get_stats,
916 .suspend = genphy_suspend,
917 .resume = genphy_resume,
918}, {
919 .phy_id = PHY_ID_KSZ8081,
920 .name = "Micrel KSZ8081 or KSZ8091",
921 .phy_id_mask = MICREL_PHY_ID_MASK,
922 .features = PHY_BASIC_FEATURES,
923 .flags = PHY_HAS_INTERRUPT,
924 .driver_data = &ksz8081_type,
925 .probe = kszphy_probe,
926 .config_init = kszphy_config_init,
927 .ack_interrupt = kszphy_ack_interrupt,
928 .config_intr = kszphy_config_intr,
929 .get_sset_count = kszphy_get_sset_count,
930 .get_strings = kszphy_get_strings,
931 .get_stats = kszphy_get_stats,
932 .suspend = kszphy_suspend,
933 .resume = kszphy_resume,
934}, {
935 .phy_id = PHY_ID_KSZ8061,
936 .name = "Micrel KSZ8061",
937 .phy_id_mask = MICREL_PHY_ID_MASK,
938 .features = PHY_BASIC_FEATURES,
939 .flags = PHY_HAS_INTERRUPT,
940 .config_init = kszphy_config_init,
941 .ack_interrupt = kszphy_ack_interrupt,
942 .config_intr = kszphy_config_intr,
943 .suspend = genphy_suspend,
944 .resume = genphy_resume,
945}, {
946 .phy_id = PHY_ID_KSZ9021,
947 .phy_id_mask = 0x000ffffe,
948 .name = "Micrel KSZ9021 Gigabit PHY",
949 .features = PHY_GBIT_FEATURES,
950 .flags = PHY_HAS_INTERRUPT,
951 .driver_data = &ksz9021_type,
952 .probe = kszphy_probe,
953 .config_init = ksz9021_config_init,
954 .ack_interrupt = kszphy_ack_interrupt,
955 .config_intr = kszphy_config_intr,
956 .get_sset_count = kszphy_get_sset_count,
957 .get_strings = kszphy_get_strings,
958 .get_stats = kszphy_get_stats,
959 .suspend = genphy_suspend,
960 .resume = genphy_resume,
961 .read_mmd = genphy_read_mmd_unsupported,
962 .write_mmd = genphy_write_mmd_unsupported,
963}, {
964 .phy_id = PHY_ID_KSZ9031,
965 .phy_id_mask = MICREL_PHY_ID_MASK,
966 .name = "Micrel KSZ9031 Gigabit PHY",
967 .features = PHY_GBIT_FEATURES,
968 .flags = PHY_HAS_INTERRUPT,
969 .driver_data = &ksz9021_type,
970 .probe = kszphy_probe,
971 .config_init = ksz9031_config_init,
972 .read_status = ksz9031_read_status,
973 .ack_interrupt = kszphy_ack_interrupt,
974 .config_intr = kszphy_config_intr,
975 .get_sset_count = kszphy_get_sset_count,
976 .get_strings = kszphy_get_strings,
977 .get_stats = kszphy_get_stats,
978 .suspend = genphy_suspend,
979 .resume = kszphy_resume,
980}, {
981 .phy_id = PHY_ID_KSZ8873MLL,
982 .phy_id_mask = MICREL_PHY_ID_MASK,
983 .name = "Micrel KSZ8873MLL Switch",
984 .config_init = kszphy_config_init,
985 .config_aneg = ksz8873mll_config_aneg,
986 .read_status = ksz8873mll_read_status,
987 .suspend = genphy_suspend,
988 .resume = genphy_resume,
989}, {
990 .phy_id = PHY_ID_KSZ886X,
991 .phy_id_mask = MICREL_PHY_ID_MASK,
992 .name = "Micrel KSZ886X Switch",
993 .features = PHY_BASIC_FEATURES,
994 .flags = PHY_HAS_INTERRUPT,
995 .config_init = kszphy_config_init,
996 .suspend = genphy_suspend,
997 .resume = genphy_resume,
998}, {
999 .phy_id = PHY_ID_KSZ8795,
1000 .phy_id_mask = MICREL_PHY_ID_MASK,
1001 .name = "Micrel KSZ8795",
1002 .features = PHY_BASIC_FEATURES,
1003 .flags = PHY_HAS_INTERRUPT,
1004 .config_init = kszphy_config_init,
1005 .config_aneg = ksz8873mll_config_aneg,
1006 .read_status = ksz8873mll_read_status,
1007 .suspend = genphy_suspend,
1008 .resume = genphy_resume,
1009}, {
1010 .phy_id = PHY_ID_KSZ9477,
1011 .phy_id_mask = MICREL_PHY_ID_MASK,
1012 .name = "Microchip KSZ9477",
1013 .features = PHY_GBIT_FEATURES,
1014 .config_init = kszphy_config_init,
1015 .suspend = genphy_suspend,
1016 .resume = genphy_resume,
1017} };
1018
1019module_phy_driver(ksphy_driver);
1020
1021MODULE_DESCRIPTION("Micrel PHY driver");
1022MODULE_AUTHOR("David J. Choi");
1023MODULE_LICENSE("GPL");
1024
1025static struct mdio_device_id __maybe_unused micrel_tbl[] = {
1026 { PHY_ID_KSZ9021, 0x000ffffe },
1027 { PHY_ID_KSZ9031, MICREL_PHY_ID_MASK },
1028 { PHY_ID_KSZ8001, 0x00fffffc },
1029 { PHY_ID_KS8737, MICREL_PHY_ID_MASK },
1030 { PHY_ID_KSZ8021, 0x00ffffff },
1031 { PHY_ID_KSZ8031, 0x00ffffff },
1032 { PHY_ID_KSZ8041, MICREL_PHY_ID_MASK },
1033 { PHY_ID_KSZ8051, MICREL_PHY_ID_MASK },
1034 { PHY_ID_KSZ8061, MICREL_PHY_ID_MASK },
1035 { PHY_ID_KSZ8081, MICREL_PHY_ID_MASK },
1036 { PHY_ID_KSZ8873MLL, MICREL_PHY_ID_MASK },
1037 { PHY_ID_KSZ886X, MICREL_PHY_ID_MASK },
1038 { }
1039};
1040
1041MODULE_DEVICE_TABLE(mdio, micrel_tbl);
1/*
2 * drivers/net/phy/micrel.c
3 *
4 * Driver for Micrel PHYs
5 *
6 * Author: David J. Choi
7 *
8 * Copyright (c) 2010-2013 Micrel, Inc.
9 * Copyright (c) 2014 Johan Hovold <johan@kernel.org>
10 *
11 * This program is free software; you can redistribute it and/or modify it
12 * under the terms of the GNU General Public License as published by the
13 * Free Software Foundation; either version 2 of the License, or (at your
14 * option) any later version.
15 *
16 * Support : Micrel Phys:
17 * Giga phys: ksz9021, ksz9031
18 * 100/10 Phys : ksz8001, ksz8721, ksz8737, ksz8041
19 * ksz8021, ksz8031, ksz8051,
20 * ksz8081, ksz8091,
21 * ksz8061,
22 * Switch : ksz8873, ksz886x
23 */
24
25#include <linux/kernel.h>
26#include <linux/module.h>
27#include <linux/phy.h>
28#include <linux/micrel_phy.h>
29#include <linux/of.h>
30#include <linux/clk.h>
31
32/* Operation Mode Strap Override */
33#define MII_KSZPHY_OMSO 0x16
34#define KSZPHY_OMSO_B_CAST_OFF BIT(9)
35#define KSZPHY_OMSO_NAND_TREE_ON BIT(5)
36#define KSZPHY_OMSO_RMII_OVERRIDE BIT(1)
37#define KSZPHY_OMSO_MII_OVERRIDE BIT(0)
38
39/* general Interrupt control/status reg in vendor specific block. */
40#define MII_KSZPHY_INTCS 0x1B
41#define KSZPHY_INTCS_JABBER BIT(15)
42#define KSZPHY_INTCS_RECEIVE_ERR BIT(14)
43#define KSZPHY_INTCS_PAGE_RECEIVE BIT(13)
44#define KSZPHY_INTCS_PARELLEL BIT(12)
45#define KSZPHY_INTCS_LINK_PARTNER_ACK BIT(11)
46#define KSZPHY_INTCS_LINK_DOWN BIT(10)
47#define KSZPHY_INTCS_REMOTE_FAULT BIT(9)
48#define KSZPHY_INTCS_LINK_UP BIT(8)
49#define KSZPHY_INTCS_ALL (KSZPHY_INTCS_LINK_UP |\
50 KSZPHY_INTCS_LINK_DOWN)
51
52/* PHY Control 1 */
53#define MII_KSZPHY_CTRL_1 0x1e
54
55/* PHY Control 2 / PHY Control (if no PHY Control 1) */
56#define MII_KSZPHY_CTRL_2 0x1f
57#define MII_KSZPHY_CTRL MII_KSZPHY_CTRL_2
58/* bitmap of PHY register to set interrupt mode */
59#define KSZPHY_CTRL_INT_ACTIVE_HIGH BIT(9)
60#define KSZPHY_RMII_REF_CLK_SEL BIT(7)
61
62/* Write/read to/from extended registers */
63#define MII_KSZPHY_EXTREG 0x0b
64#define KSZPHY_EXTREG_WRITE 0x8000
65
66#define MII_KSZPHY_EXTREG_WRITE 0x0c
67#define MII_KSZPHY_EXTREG_READ 0x0d
68
69/* Extended registers */
70#define MII_KSZPHY_CLK_CONTROL_PAD_SKEW 0x104
71#define MII_KSZPHY_RX_DATA_PAD_SKEW 0x105
72#define MII_KSZPHY_TX_DATA_PAD_SKEW 0x106
73
74#define PS_TO_REG 200
75
76struct kszphy_hw_stat {
77 const char *string;
78 u8 reg;
79 u8 bits;
80};
81
82static struct kszphy_hw_stat kszphy_hw_stats[] = {
83 { "phy_receive_errors", 21, 16},
84 { "phy_idle_errors", 10, 8 },
85};
86
87struct kszphy_type {
88 u32 led_mode_reg;
89 u16 interrupt_level_mask;
90 bool has_broadcast_disable;
91 bool has_nand_tree_disable;
92 bool has_rmii_ref_clk_sel;
93};
94
95struct kszphy_priv {
96 const struct kszphy_type *type;
97 int led_mode;
98 bool rmii_ref_clk_sel;
99 bool rmii_ref_clk_sel_val;
100 u64 stats[ARRAY_SIZE(kszphy_hw_stats)];
101};
102
103static const struct kszphy_type ksz8021_type = {
104 .led_mode_reg = MII_KSZPHY_CTRL_2,
105 .has_broadcast_disable = true,
106 .has_nand_tree_disable = true,
107 .has_rmii_ref_clk_sel = true,
108};
109
110static const struct kszphy_type ksz8041_type = {
111 .led_mode_reg = MII_KSZPHY_CTRL_1,
112};
113
114static const struct kszphy_type ksz8051_type = {
115 .led_mode_reg = MII_KSZPHY_CTRL_2,
116 .has_nand_tree_disable = true,
117};
118
119static const struct kszphy_type ksz8081_type = {
120 .led_mode_reg = MII_KSZPHY_CTRL_2,
121 .has_broadcast_disable = true,
122 .has_nand_tree_disable = true,
123 .has_rmii_ref_clk_sel = true,
124};
125
126static const struct kszphy_type ks8737_type = {
127 .interrupt_level_mask = BIT(14),
128};
129
130static const struct kszphy_type ksz9021_type = {
131 .interrupt_level_mask = BIT(14),
132};
133
134static int kszphy_extended_write(struct phy_device *phydev,
135 u32 regnum, u16 val)
136{
137 phy_write(phydev, MII_KSZPHY_EXTREG, KSZPHY_EXTREG_WRITE | regnum);
138 return phy_write(phydev, MII_KSZPHY_EXTREG_WRITE, val);
139}
140
141static int kszphy_extended_read(struct phy_device *phydev,
142 u32 regnum)
143{
144 phy_write(phydev, MII_KSZPHY_EXTREG, regnum);
145 return phy_read(phydev, MII_KSZPHY_EXTREG_READ);
146}
147
148static int kszphy_ack_interrupt(struct phy_device *phydev)
149{
150 /* bit[7..0] int status, which is a read and clear register. */
151 int rc;
152
153 rc = phy_read(phydev, MII_KSZPHY_INTCS);
154
155 return (rc < 0) ? rc : 0;
156}
157
158static int kszphy_config_intr(struct phy_device *phydev)
159{
160 const struct kszphy_type *type = phydev->drv->driver_data;
161 int temp;
162 u16 mask;
163
164 if (type && type->interrupt_level_mask)
165 mask = type->interrupt_level_mask;
166 else
167 mask = KSZPHY_CTRL_INT_ACTIVE_HIGH;
168
169 /* set the interrupt pin active low */
170 temp = phy_read(phydev, MII_KSZPHY_CTRL);
171 if (temp < 0)
172 return temp;
173 temp &= ~mask;
174 phy_write(phydev, MII_KSZPHY_CTRL, temp);
175
176 /* enable / disable interrupts */
177 if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
178 temp = KSZPHY_INTCS_ALL;
179 else
180 temp = 0;
181
182 return phy_write(phydev, MII_KSZPHY_INTCS, temp);
183}
184
185static int kszphy_rmii_clk_sel(struct phy_device *phydev, bool val)
186{
187 int ctrl;
188
189 ctrl = phy_read(phydev, MII_KSZPHY_CTRL);
190 if (ctrl < 0)
191 return ctrl;
192
193 if (val)
194 ctrl |= KSZPHY_RMII_REF_CLK_SEL;
195 else
196 ctrl &= ~KSZPHY_RMII_REF_CLK_SEL;
197
198 return phy_write(phydev, MII_KSZPHY_CTRL, ctrl);
199}
200
201static int kszphy_setup_led(struct phy_device *phydev, u32 reg, int val)
202{
203 int rc, temp, shift;
204
205 switch (reg) {
206 case MII_KSZPHY_CTRL_1:
207 shift = 14;
208 break;
209 case MII_KSZPHY_CTRL_2:
210 shift = 4;
211 break;
212 default:
213 return -EINVAL;
214 }
215
216 temp = phy_read(phydev, reg);
217 if (temp < 0) {
218 rc = temp;
219 goto out;
220 }
221
222 temp &= ~(3 << shift);
223 temp |= val << shift;
224 rc = phy_write(phydev, reg, temp);
225out:
226 if (rc < 0)
227 phydev_err(phydev, "failed to set led mode\n");
228
229 return rc;
230}
231
232/* Disable PHY address 0 as the broadcast address, so that it can be used as a
233 * unique (non-broadcast) address on a shared bus.
234 */
235static int kszphy_broadcast_disable(struct phy_device *phydev)
236{
237 int ret;
238
239 ret = phy_read(phydev, MII_KSZPHY_OMSO);
240 if (ret < 0)
241 goto out;
242
243 ret = phy_write(phydev, MII_KSZPHY_OMSO, ret | KSZPHY_OMSO_B_CAST_OFF);
244out:
245 if (ret)
246 phydev_err(phydev, "failed to disable broadcast address\n");
247
248 return ret;
249}
250
251static int kszphy_nand_tree_disable(struct phy_device *phydev)
252{
253 int ret;
254
255 ret = phy_read(phydev, MII_KSZPHY_OMSO);
256 if (ret < 0)
257 goto out;
258
259 if (!(ret & KSZPHY_OMSO_NAND_TREE_ON))
260 return 0;
261
262 ret = phy_write(phydev, MII_KSZPHY_OMSO,
263 ret & ~KSZPHY_OMSO_NAND_TREE_ON);
264out:
265 if (ret)
266 phydev_err(phydev, "failed to disable NAND tree mode\n");
267
268 return ret;
269}
270
271static int kszphy_config_init(struct phy_device *phydev)
272{
273 struct kszphy_priv *priv = phydev->priv;
274 const struct kszphy_type *type;
275 int ret;
276
277 if (!priv)
278 return 0;
279
280 type = priv->type;
281
282 if (type->has_broadcast_disable)
283 kszphy_broadcast_disable(phydev);
284
285 if (type->has_nand_tree_disable)
286 kszphy_nand_tree_disable(phydev);
287
288 if (priv->rmii_ref_clk_sel) {
289 ret = kszphy_rmii_clk_sel(phydev, priv->rmii_ref_clk_sel_val);
290 if (ret) {
291 phydev_err(phydev,
292 "failed to set rmii reference clock\n");
293 return ret;
294 }
295 }
296
297 if (priv->led_mode >= 0)
298 kszphy_setup_led(phydev, type->led_mode_reg, priv->led_mode);
299
300 if (phy_interrupt_is_valid(phydev)) {
301 int ctl = phy_read(phydev, MII_BMCR);
302
303 if (ctl < 0)
304 return ctl;
305
306 ret = phy_write(phydev, MII_BMCR, ctl & ~BMCR_ANENABLE);
307 if (ret < 0)
308 return ret;
309 }
310
311 return 0;
312}
313
314static int ksz9021_load_values_from_of(struct phy_device *phydev,
315 const struct device_node *of_node,
316 u16 reg,
317 const char *field1, const char *field2,
318 const char *field3, const char *field4)
319{
320 int val1 = -1;
321 int val2 = -2;
322 int val3 = -3;
323 int val4 = -4;
324 int newval;
325 int matches = 0;
326
327 if (!of_property_read_u32(of_node, field1, &val1))
328 matches++;
329
330 if (!of_property_read_u32(of_node, field2, &val2))
331 matches++;
332
333 if (!of_property_read_u32(of_node, field3, &val3))
334 matches++;
335
336 if (!of_property_read_u32(of_node, field4, &val4))
337 matches++;
338
339 if (!matches)
340 return 0;
341
342 if (matches < 4)
343 newval = kszphy_extended_read(phydev, reg);
344 else
345 newval = 0;
346
347 if (val1 != -1)
348 newval = ((newval & 0xfff0) | ((val1 / PS_TO_REG) & 0xf) << 0);
349
350 if (val2 != -2)
351 newval = ((newval & 0xff0f) | ((val2 / PS_TO_REG) & 0xf) << 4);
352
353 if (val3 != -3)
354 newval = ((newval & 0xf0ff) | ((val3 / PS_TO_REG) & 0xf) << 8);
355
356 if (val4 != -4)
357 newval = ((newval & 0x0fff) | ((val4 / PS_TO_REG) & 0xf) << 12);
358
359 return kszphy_extended_write(phydev, reg, newval);
360}
361
362static int ksz9021_config_init(struct phy_device *phydev)
363{
364 const struct device *dev = &phydev->mdio.dev;
365 const struct device_node *of_node = dev->of_node;
366 const struct device *dev_walker;
367
368 /* The Micrel driver has a deprecated option to place phy OF
369 * properties in the MAC node. Walk up the tree of devices to
370 * find a device with an OF node.
371 */
372 dev_walker = &phydev->mdio.dev;
373 do {
374 of_node = dev_walker->of_node;
375 dev_walker = dev_walker->parent;
376
377 } while (!of_node && dev_walker);
378
379 if (of_node) {
380 ksz9021_load_values_from_of(phydev, of_node,
381 MII_KSZPHY_CLK_CONTROL_PAD_SKEW,
382 "txen-skew-ps", "txc-skew-ps",
383 "rxdv-skew-ps", "rxc-skew-ps");
384 ksz9021_load_values_from_of(phydev, of_node,
385 MII_KSZPHY_RX_DATA_PAD_SKEW,
386 "rxd0-skew-ps", "rxd1-skew-ps",
387 "rxd2-skew-ps", "rxd3-skew-ps");
388 ksz9021_load_values_from_of(phydev, of_node,
389 MII_KSZPHY_TX_DATA_PAD_SKEW,
390 "txd0-skew-ps", "txd1-skew-ps",
391 "txd2-skew-ps", "txd3-skew-ps");
392 }
393 return 0;
394}
395
396#define MII_KSZ9031RN_MMD_CTRL_REG 0x0d
397#define MII_KSZ9031RN_MMD_REGDATA_REG 0x0e
398#define OP_DATA 1
399#define KSZ9031_PS_TO_REG 60
400
401/* Extended registers */
402/* MMD Address 0x0 */
403#define MII_KSZ9031RN_FLP_BURST_TX_LO 3
404#define MII_KSZ9031RN_FLP_BURST_TX_HI 4
405
406/* MMD Address 0x2 */
407#define MII_KSZ9031RN_CONTROL_PAD_SKEW 4
408#define MII_KSZ9031RN_RX_DATA_PAD_SKEW 5
409#define MII_KSZ9031RN_TX_DATA_PAD_SKEW 6
410#define MII_KSZ9031RN_CLK_PAD_SKEW 8
411
412static int ksz9031_extended_write(struct phy_device *phydev,
413 u8 mode, u32 dev_addr, u32 regnum, u16 val)
414{
415 phy_write(phydev, MII_KSZ9031RN_MMD_CTRL_REG, dev_addr);
416 phy_write(phydev, MII_KSZ9031RN_MMD_REGDATA_REG, regnum);
417 phy_write(phydev, MII_KSZ9031RN_MMD_CTRL_REG, (mode << 14) | dev_addr);
418 return phy_write(phydev, MII_KSZ9031RN_MMD_REGDATA_REG, val);
419}
420
421static int ksz9031_extended_read(struct phy_device *phydev,
422 u8 mode, u32 dev_addr, u32 regnum)
423{
424 phy_write(phydev, MII_KSZ9031RN_MMD_CTRL_REG, dev_addr);
425 phy_write(phydev, MII_KSZ9031RN_MMD_REGDATA_REG, regnum);
426 phy_write(phydev, MII_KSZ9031RN_MMD_CTRL_REG, (mode << 14) | dev_addr);
427 return phy_read(phydev, MII_KSZ9031RN_MMD_REGDATA_REG);
428}
429
430static int ksz9031_of_load_skew_values(struct phy_device *phydev,
431 const struct device_node *of_node,
432 u16 reg, size_t field_sz,
433 const char *field[], u8 numfields)
434{
435 int val[4] = {-1, -2, -3, -4};
436 int matches = 0;
437 u16 mask;
438 u16 maxval;
439 u16 newval;
440 int i;
441
442 for (i = 0; i < numfields; i++)
443 if (!of_property_read_u32(of_node, field[i], val + i))
444 matches++;
445
446 if (!matches)
447 return 0;
448
449 if (matches < numfields)
450 newval = ksz9031_extended_read(phydev, OP_DATA, 2, reg);
451 else
452 newval = 0;
453
454 maxval = (field_sz == 4) ? 0xf : 0x1f;
455 for (i = 0; i < numfields; i++)
456 if (val[i] != -(i + 1)) {
457 mask = 0xffff;
458 mask ^= maxval << (field_sz * i);
459 newval = (newval & mask) |
460 (((val[i] / KSZ9031_PS_TO_REG) & maxval)
461 << (field_sz * i));
462 }
463
464 return ksz9031_extended_write(phydev, OP_DATA, 2, reg, newval);
465}
466
467static int ksz9031_center_flp_timing(struct phy_device *phydev)
468{
469 int result;
470
471 /* Center KSZ9031RNX FLP timing at 16ms. */
472 result = ksz9031_extended_write(phydev, OP_DATA, 0,
473 MII_KSZ9031RN_FLP_BURST_TX_HI, 0x0006);
474 result = ksz9031_extended_write(phydev, OP_DATA, 0,
475 MII_KSZ9031RN_FLP_BURST_TX_LO, 0x1A80);
476
477 if (result)
478 return result;
479
480 return genphy_restart_aneg(phydev);
481}
482
483static int ksz9031_config_init(struct phy_device *phydev)
484{
485 const struct device *dev = &phydev->mdio.dev;
486 const struct device_node *of_node = dev->of_node;
487 static const char *clk_skews[2] = {"rxc-skew-ps", "txc-skew-ps"};
488 static const char *rx_data_skews[4] = {
489 "rxd0-skew-ps", "rxd1-skew-ps",
490 "rxd2-skew-ps", "rxd3-skew-ps"
491 };
492 static const char *tx_data_skews[4] = {
493 "txd0-skew-ps", "txd1-skew-ps",
494 "txd2-skew-ps", "txd3-skew-ps"
495 };
496 static const char *control_skews[2] = {"txen-skew-ps", "rxdv-skew-ps"};
497 const struct device *dev_walker;
498
499 /* The Micrel driver has a deprecated option to place phy OF
500 * properties in the MAC node. Walk up the tree of devices to
501 * find a device with an OF node.
502 */
503 dev_walker = &phydev->mdio.dev;
504 do {
505 of_node = dev_walker->of_node;
506 dev_walker = dev_walker->parent;
507 } while (!of_node && dev_walker);
508
509 if (of_node) {
510 ksz9031_of_load_skew_values(phydev, of_node,
511 MII_KSZ9031RN_CLK_PAD_SKEW, 5,
512 clk_skews, 2);
513
514 ksz9031_of_load_skew_values(phydev, of_node,
515 MII_KSZ9031RN_CONTROL_PAD_SKEW, 4,
516 control_skews, 2);
517
518 ksz9031_of_load_skew_values(phydev, of_node,
519 MII_KSZ9031RN_RX_DATA_PAD_SKEW, 4,
520 rx_data_skews, 4);
521
522 ksz9031_of_load_skew_values(phydev, of_node,
523 MII_KSZ9031RN_TX_DATA_PAD_SKEW, 4,
524 tx_data_skews, 4);
525 }
526
527 return ksz9031_center_flp_timing(phydev);
528}
529
530#define KSZ8873MLL_GLOBAL_CONTROL_4 0x06
531#define KSZ8873MLL_GLOBAL_CONTROL_4_DUPLEX BIT(6)
532#define KSZ8873MLL_GLOBAL_CONTROL_4_SPEED BIT(4)
533static int ksz8873mll_read_status(struct phy_device *phydev)
534{
535 int regval;
536
537 /* dummy read */
538 regval = phy_read(phydev, KSZ8873MLL_GLOBAL_CONTROL_4);
539
540 regval = phy_read(phydev, KSZ8873MLL_GLOBAL_CONTROL_4);
541
542 if (regval & KSZ8873MLL_GLOBAL_CONTROL_4_DUPLEX)
543 phydev->duplex = DUPLEX_HALF;
544 else
545 phydev->duplex = DUPLEX_FULL;
546
547 if (regval & KSZ8873MLL_GLOBAL_CONTROL_4_SPEED)
548 phydev->speed = SPEED_10;
549 else
550 phydev->speed = SPEED_100;
551
552 phydev->link = 1;
553 phydev->pause = phydev->asym_pause = 0;
554
555 return 0;
556}
557
558static int ksz9031_read_status(struct phy_device *phydev)
559{
560 int err;
561 int regval;
562
563 err = genphy_read_status(phydev);
564 if (err)
565 return err;
566
567 /* Make sure the PHY is not broken. Read idle error count,
568 * and reset the PHY if it is maxed out.
569 */
570 regval = phy_read(phydev, MII_STAT1000);
571 if ((regval & 0xFF) == 0xFF) {
572 phy_init_hw(phydev);
573 phydev->link = 0;
574 }
575
576 return 0;
577}
578
579static int ksz8873mll_config_aneg(struct phy_device *phydev)
580{
581 return 0;
582}
583
584/* This routine returns -1 as an indication to the caller that the
585 * Micrel ksz9021 10/100/1000 PHY does not support standard IEEE
586 * MMD extended PHY registers.
587 */
588static int
589ksz9021_rd_mmd_phyreg(struct phy_device *phydev, int ptrad, int devnum,
590 int regnum)
591{
592 return -1;
593}
594
595/* This routine does nothing since the Micrel ksz9021 does not support
596 * standard IEEE MMD extended PHY registers.
597 */
598static void
599ksz9021_wr_mmd_phyreg(struct phy_device *phydev, int ptrad, int devnum,
600 int regnum, u32 val)
601{
602}
603
604static int kszphy_get_sset_count(struct phy_device *phydev)
605{
606 return ARRAY_SIZE(kszphy_hw_stats);
607}
608
609static void kszphy_get_strings(struct phy_device *phydev, u8 *data)
610{
611 int i;
612
613 for (i = 0; i < ARRAY_SIZE(kszphy_hw_stats); i++) {
614 memcpy(data + i * ETH_GSTRING_LEN,
615 kszphy_hw_stats[i].string, ETH_GSTRING_LEN);
616 }
617}
618
619#ifndef UINT64_MAX
620#define UINT64_MAX (u64)(~((u64)0))
621#endif
622static u64 kszphy_get_stat(struct phy_device *phydev, int i)
623{
624 struct kszphy_hw_stat stat = kszphy_hw_stats[i];
625 struct kszphy_priv *priv = phydev->priv;
626 int val;
627 u64 ret;
628
629 val = phy_read(phydev, stat.reg);
630 if (val < 0) {
631 ret = UINT64_MAX;
632 } else {
633 val = val & ((1 << stat.bits) - 1);
634 priv->stats[i] += val;
635 ret = priv->stats[i];
636 }
637
638 return ret;
639}
640
641static void kszphy_get_stats(struct phy_device *phydev,
642 struct ethtool_stats *stats, u64 *data)
643{
644 int i;
645
646 for (i = 0; i < ARRAY_SIZE(kszphy_hw_stats); i++)
647 data[i] = kszphy_get_stat(phydev, i);
648}
649
650static int kszphy_resume(struct phy_device *phydev)
651{
652 int value;
653
654 mutex_lock(&phydev->lock);
655
656 value = phy_read(phydev, MII_BMCR);
657 phy_write(phydev, MII_BMCR, value & ~BMCR_PDOWN);
658
659 kszphy_config_intr(phydev);
660 mutex_unlock(&phydev->lock);
661
662 return 0;
663}
664
665static int kszphy_probe(struct phy_device *phydev)
666{
667 const struct kszphy_type *type = phydev->drv->driver_data;
668 const struct device_node *np = phydev->mdio.dev.of_node;
669 struct kszphy_priv *priv;
670 struct clk *clk;
671 int ret;
672
673 priv = devm_kzalloc(&phydev->mdio.dev, sizeof(*priv), GFP_KERNEL);
674 if (!priv)
675 return -ENOMEM;
676
677 phydev->priv = priv;
678
679 priv->type = type;
680
681 if (type->led_mode_reg) {
682 ret = of_property_read_u32(np, "micrel,led-mode",
683 &priv->led_mode);
684 if (ret)
685 priv->led_mode = -1;
686
687 if (priv->led_mode > 3) {
688 phydev_err(phydev, "invalid led mode: 0x%02x\n",
689 priv->led_mode);
690 priv->led_mode = -1;
691 }
692 } else {
693 priv->led_mode = -1;
694 }
695
696 clk = devm_clk_get(&phydev->mdio.dev, "rmii-ref");
697 /* NOTE: clk may be NULL if building without CONFIG_HAVE_CLK */
698 if (!IS_ERR_OR_NULL(clk)) {
699 unsigned long rate = clk_get_rate(clk);
700 bool rmii_ref_clk_sel_25_mhz;
701
702 priv->rmii_ref_clk_sel = type->has_rmii_ref_clk_sel;
703 rmii_ref_clk_sel_25_mhz = of_property_read_bool(np,
704 "micrel,rmii-reference-clock-select-25-mhz");
705
706 if (rate > 24500000 && rate < 25500000) {
707 priv->rmii_ref_clk_sel_val = rmii_ref_clk_sel_25_mhz;
708 } else if (rate > 49500000 && rate < 50500000) {
709 priv->rmii_ref_clk_sel_val = !rmii_ref_clk_sel_25_mhz;
710 } else {
711 phydev_err(phydev, "Clock rate out of range: %ld\n",
712 rate);
713 return -EINVAL;
714 }
715 }
716
717 /* Support legacy board-file configuration */
718 if (phydev->dev_flags & MICREL_PHY_50MHZ_CLK) {
719 priv->rmii_ref_clk_sel = true;
720 priv->rmii_ref_clk_sel_val = true;
721 }
722
723 return 0;
724}
725
726static struct phy_driver ksphy_driver[] = {
727{
728 .phy_id = PHY_ID_KS8737,
729 .phy_id_mask = 0x00fffff0,
730 .name = "Micrel KS8737",
731 .features = (PHY_BASIC_FEATURES | SUPPORTED_Pause),
732 .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
733 .driver_data = &ks8737_type,
734 .config_init = kszphy_config_init,
735 .config_aneg = genphy_config_aneg,
736 .read_status = genphy_read_status,
737 .ack_interrupt = kszphy_ack_interrupt,
738 .config_intr = kszphy_config_intr,
739 .get_sset_count = kszphy_get_sset_count,
740 .get_strings = kszphy_get_strings,
741 .get_stats = kszphy_get_stats,
742 .suspend = genphy_suspend,
743 .resume = genphy_resume,
744}, {
745 .phy_id = PHY_ID_KSZ8021,
746 .phy_id_mask = 0x00ffffff,
747 .name = "Micrel KSZ8021 or KSZ8031",
748 .features = (PHY_BASIC_FEATURES | SUPPORTED_Pause |
749 SUPPORTED_Asym_Pause),
750 .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
751 .driver_data = &ksz8021_type,
752 .probe = kszphy_probe,
753 .config_init = kszphy_config_init,
754 .config_aneg = genphy_config_aneg,
755 .read_status = genphy_read_status,
756 .ack_interrupt = kszphy_ack_interrupt,
757 .config_intr = kszphy_config_intr,
758 .get_sset_count = kszphy_get_sset_count,
759 .get_strings = kszphy_get_strings,
760 .get_stats = kszphy_get_stats,
761 .suspend = genphy_suspend,
762 .resume = genphy_resume,
763}, {
764 .phy_id = PHY_ID_KSZ8031,
765 .phy_id_mask = 0x00ffffff,
766 .name = "Micrel KSZ8031",
767 .features = (PHY_BASIC_FEATURES | SUPPORTED_Pause |
768 SUPPORTED_Asym_Pause),
769 .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
770 .driver_data = &ksz8021_type,
771 .probe = kszphy_probe,
772 .config_init = kszphy_config_init,
773 .config_aneg = genphy_config_aneg,
774 .read_status = genphy_read_status,
775 .ack_interrupt = kszphy_ack_interrupt,
776 .config_intr = kszphy_config_intr,
777 .get_sset_count = kszphy_get_sset_count,
778 .get_strings = kszphy_get_strings,
779 .get_stats = kszphy_get_stats,
780 .suspend = genphy_suspend,
781 .resume = genphy_resume,
782}, {
783 .phy_id = PHY_ID_KSZ8041,
784 .phy_id_mask = 0x00fffff0,
785 .name = "Micrel KSZ8041",
786 .features = (PHY_BASIC_FEATURES | SUPPORTED_Pause
787 | SUPPORTED_Asym_Pause),
788 .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
789 .driver_data = &ksz8041_type,
790 .probe = kszphy_probe,
791 .config_init = kszphy_config_init,
792 .config_aneg = genphy_config_aneg,
793 .read_status = genphy_read_status,
794 .ack_interrupt = kszphy_ack_interrupt,
795 .config_intr = kszphy_config_intr,
796 .get_sset_count = kszphy_get_sset_count,
797 .get_strings = kszphy_get_strings,
798 .get_stats = kszphy_get_stats,
799 .suspend = genphy_suspend,
800 .resume = genphy_resume,
801}, {
802 .phy_id = PHY_ID_KSZ8041RNLI,
803 .phy_id_mask = 0x00fffff0,
804 .name = "Micrel KSZ8041RNLI",
805 .features = PHY_BASIC_FEATURES |
806 SUPPORTED_Pause | SUPPORTED_Asym_Pause,
807 .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
808 .driver_data = &ksz8041_type,
809 .probe = kszphy_probe,
810 .config_init = kszphy_config_init,
811 .config_aneg = genphy_config_aneg,
812 .read_status = genphy_read_status,
813 .ack_interrupt = kszphy_ack_interrupt,
814 .config_intr = kszphy_config_intr,
815 .get_sset_count = kszphy_get_sset_count,
816 .get_strings = kszphy_get_strings,
817 .get_stats = kszphy_get_stats,
818 .suspend = genphy_suspend,
819 .resume = genphy_resume,
820}, {
821 .phy_id = PHY_ID_KSZ8051,
822 .phy_id_mask = 0x00fffff0,
823 .name = "Micrel KSZ8051",
824 .features = (PHY_BASIC_FEATURES | SUPPORTED_Pause
825 | SUPPORTED_Asym_Pause),
826 .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
827 .driver_data = &ksz8051_type,
828 .probe = kszphy_probe,
829 .config_init = kszphy_config_init,
830 .config_aneg = genphy_config_aneg,
831 .read_status = genphy_read_status,
832 .ack_interrupt = kszphy_ack_interrupt,
833 .config_intr = kszphy_config_intr,
834 .get_sset_count = kszphy_get_sset_count,
835 .get_strings = kszphy_get_strings,
836 .get_stats = kszphy_get_stats,
837 .suspend = genphy_suspend,
838 .resume = genphy_resume,
839}, {
840 .phy_id = PHY_ID_KSZ8001,
841 .name = "Micrel KSZ8001 or KS8721",
842 .phy_id_mask = 0x00ffffff,
843 .features = (PHY_BASIC_FEATURES | SUPPORTED_Pause),
844 .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
845 .driver_data = &ksz8041_type,
846 .probe = kszphy_probe,
847 .config_init = kszphy_config_init,
848 .config_aneg = genphy_config_aneg,
849 .read_status = genphy_read_status,
850 .ack_interrupt = kszphy_ack_interrupt,
851 .config_intr = kszphy_config_intr,
852 .get_sset_count = kszphy_get_sset_count,
853 .get_strings = kszphy_get_strings,
854 .get_stats = kszphy_get_stats,
855 .suspend = genphy_suspend,
856 .resume = genphy_resume,
857}, {
858 .phy_id = PHY_ID_KSZ8081,
859 .name = "Micrel KSZ8081 or KSZ8091",
860 .phy_id_mask = 0x00fffff0,
861 .features = (PHY_BASIC_FEATURES | SUPPORTED_Pause),
862 .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
863 .driver_data = &ksz8081_type,
864 .probe = kszphy_probe,
865 .config_init = kszphy_config_init,
866 .config_aneg = genphy_config_aneg,
867 .read_status = genphy_read_status,
868 .ack_interrupt = kszphy_ack_interrupt,
869 .config_intr = kszphy_config_intr,
870 .get_sset_count = kszphy_get_sset_count,
871 .get_strings = kszphy_get_strings,
872 .get_stats = kszphy_get_stats,
873 .suspend = genphy_suspend,
874 .resume = kszphy_resume,
875}, {
876 .phy_id = PHY_ID_KSZ8061,
877 .name = "Micrel KSZ8061",
878 .phy_id_mask = 0x00fffff0,
879 .features = (PHY_BASIC_FEATURES | SUPPORTED_Pause),
880 .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
881 .config_init = kszphy_config_init,
882 .config_aneg = genphy_config_aneg,
883 .read_status = genphy_read_status,
884 .ack_interrupt = kszphy_ack_interrupt,
885 .config_intr = kszphy_config_intr,
886 .get_sset_count = kszphy_get_sset_count,
887 .get_strings = kszphy_get_strings,
888 .get_stats = kszphy_get_stats,
889 .suspend = genphy_suspend,
890 .resume = genphy_resume,
891}, {
892 .phy_id = PHY_ID_KSZ9021,
893 .phy_id_mask = 0x000ffffe,
894 .name = "Micrel KSZ9021 Gigabit PHY",
895 .features = (PHY_GBIT_FEATURES | SUPPORTED_Pause),
896 .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
897 .driver_data = &ksz9021_type,
898 .config_init = ksz9021_config_init,
899 .config_aneg = genphy_config_aneg,
900 .read_status = genphy_read_status,
901 .ack_interrupt = kszphy_ack_interrupt,
902 .config_intr = kszphy_config_intr,
903 .get_sset_count = kszphy_get_sset_count,
904 .get_strings = kszphy_get_strings,
905 .get_stats = kszphy_get_stats,
906 .suspend = genphy_suspend,
907 .resume = genphy_resume,
908 .read_mmd_indirect = ksz9021_rd_mmd_phyreg,
909 .write_mmd_indirect = ksz9021_wr_mmd_phyreg,
910}, {
911 .phy_id = PHY_ID_KSZ9031,
912 .phy_id_mask = 0x00fffff0,
913 .name = "Micrel KSZ9031 Gigabit PHY",
914 .features = (PHY_GBIT_FEATURES | SUPPORTED_Pause),
915 .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
916 .driver_data = &ksz9021_type,
917 .config_init = ksz9031_config_init,
918 .config_aneg = genphy_config_aneg,
919 .read_status = ksz9031_read_status,
920 .ack_interrupt = kszphy_ack_interrupt,
921 .config_intr = kszphy_config_intr,
922 .get_sset_count = kszphy_get_sset_count,
923 .get_strings = kszphy_get_strings,
924 .get_stats = kszphy_get_stats,
925 .suspend = genphy_suspend,
926 .resume = genphy_resume,
927}, {
928 .phy_id = PHY_ID_KSZ8873MLL,
929 .phy_id_mask = 0x00fffff0,
930 .name = "Micrel KSZ8873MLL Switch",
931 .features = (SUPPORTED_Pause | SUPPORTED_Asym_Pause),
932 .flags = PHY_HAS_MAGICANEG,
933 .config_init = kszphy_config_init,
934 .config_aneg = ksz8873mll_config_aneg,
935 .read_status = ksz8873mll_read_status,
936 .get_sset_count = kszphy_get_sset_count,
937 .get_strings = kszphy_get_strings,
938 .get_stats = kszphy_get_stats,
939 .suspend = genphy_suspend,
940 .resume = genphy_resume,
941}, {
942 .phy_id = PHY_ID_KSZ886X,
943 .phy_id_mask = 0x00fffff0,
944 .name = "Micrel KSZ886X Switch",
945 .features = (PHY_BASIC_FEATURES | SUPPORTED_Pause),
946 .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
947 .config_init = kszphy_config_init,
948 .config_aneg = genphy_config_aneg,
949 .read_status = genphy_read_status,
950 .get_sset_count = kszphy_get_sset_count,
951 .get_strings = kszphy_get_strings,
952 .get_stats = kszphy_get_stats,
953 .suspend = genphy_suspend,
954 .resume = genphy_resume,
955} };
956
957module_phy_driver(ksphy_driver);
958
959MODULE_DESCRIPTION("Micrel PHY driver");
960MODULE_AUTHOR("David J. Choi");
961MODULE_LICENSE("GPL");
962
963static struct mdio_device_id __maybe_unused micrel_tbl[] = {
964 { PHY_ID_KSZ9021, 0x000ffffe },
965 { PHY_ID_KSZ9031, 0x00fffff0 },
966 { PHY_ID_KSZ8001, 0x00ffffff },
967 { PHY_ID_KS8737, 0x00fffff0 },
968 { PHY_ID_KSZ8021, 0x00ffffff },
969 { PHY_ID_KSZ8031, 0x00ffffff },
970 { PHY_ID_KSZ8041, 0x00fffff0 },
971 { PHY_ID_KSZ8051, 0x00fffff0 },
972 { PHY_ID_KSZ8061, 0x00fffff0 },
973 { PHY_ID_KSZ8081, 0x00fffff0 },
974 { PHY_ID_KSZ8873MLL, 0x00fffff0 },
975 { PHY_ID_KSZ886X, 0x00fffff0 },
976 { }
977};
978
979MODULE_DEVICE_TABLE(mdio, micrel_tbl);