xref: /openbmc/linux/drivers/net/phy/nxp-tja11xx.c (revision 43ffe817)
1 // SPDX-License-Identifier: GPL-2.0
2 /* NXP TJA1100 BroadRReach PHY driver
3  *
4  * Copyright (C) 2018 Marek Vasut <marex@denx.de>
5  */
6 #include <linux/delay.h>
7 #include <linux/ethtool.h>
8 #include <linux/ethtool_netlink.h>
9 #include <linux/kernel.h>
10 #include <linux/mdio.h>
11 #include <linux/mii.h>
12 #include <linux/module.h>
13 #include <linux/phy.h>
14 #include <linux/hwmon.h>
15 #include <linux/bitfield.h>
16 #include <linux/of_mdio.h>
17 #include <linux/of_irq.h>
18 
19 #define PHY_ID_MASK			0xfffffff0
20 #define PHY_ID_TJA1100			0x0180dc40
21 #define PHY_ID_TJA1101			0x0180dd00
22 #define PHY_ID_TJA1102			0x0180dc80
23 
24 #define MII_ECTRL			17
25 #define MII_ECTRL_LINK_CONTROL		BIT(15)
26 #define MII_ECTRL_POWER_MODE_MASK	GENMASK(14, 11)
27 #define MII_ECTRL_POWER_MODE_NO_CHANGE	(0x0 << 11)
28 #define MII_ECTRL_POWER_MODE_NORMAL	(0x3 << 11)
29 #define MII_ECTRL_POWER_MODE_STANDBY	(0xc << 11)
30 #define MII_ECTRL_CABLE_TEST		BIT(5)
31 #define MII_ECTRL_CONFIG_EN		BIT(2)
32 #define MII_ECTRL_WAKE_REQUEST		BIT(0)
33 
34 #define MII_CFG1			18
35 #define MII_CFG1_MASTER_SLAVE		BIT(15)
36 #define MII_CFG1_AUTO_OP		BIT(14)
37 #define MII_CFG1_SLEEP_CONFIRM		BIT(6)
38 #define MII_CFG1_LED_MODE_MASK		GENMASK(5, 4)
39 #define MII_CFG1_LED_MODE_LINKUP	0
40 #define MII_CFG1_LED_ENABLE		BIT(3)
41 
42 #define MII_CFG2			19
43 #define MII_CFG2_SLEEP_REQUEST_TO	GENMASK(1, 0)
44 #define MII_CFG2_SLEEP_REQUEST_TO_16MS	0x3
45 
46 #define MII_INTSRC			21
47 #define MII_INTSRC_TEMP_ERR		BIT(1)
48 #define MII_INTSRC_UV_ERR		BIT(3)
49 
50 #define MII_INTEN			22
51 #define MII_INTEN_LINK_FAIL		BIT(10)
52 #define MII_INTEN_LINK_UP		BIT(9)
53 
54 #define MII_COMMSTAT			23
55 #define MII_COMMSTAT_LINK_UP		BIT(15)
56 #define MII_COMMSTAT_SQI_STATE		GENMASK(7, 5)
57 #define MII_COMMSTAT_SQI_MAX		7
58 
59 #define MII_GENSTAT			24
60 #define MII_GENSTAT_PLL_LOCKED		BIT(14)
61 
62 #define MII_EXTSTAT			25
63 #define MII_EXTSTAT_SHORT_DETECT	BIT(8)
64 #define MII_EXTSTAT_OPEN_DETECT		BIT(7)
65 #define MII_EXTSTAT_POLARITY_DETECT	BIT(6)
66 
67 #define MII_COMMCFG			27
68 #define MII_COMMCFG_AUTO_OP		BIT(15)
69 
70 struct tja11xx_priv {
71 	char		*hwmon_name;
72 	struct device	*hwmon_dev;
73 	struct phy_device *phydev;
74 	struct work_struct phy_register_work;
75 };
76 
77 struct tja11xx_phy_stats {
78 	const char	*string;
79 	u8		reg;
80 	u8		off;
81 	u16		mask;
82 };
83 
84 static struct tja11xx_phy_stats tja11xx_hw_stats[] = {
85 	{ "phy_symbol_error_count", 20, 0, GENMASK(15, 0) },
86 	{ "phy_polarity_detect", 25, 6, BIT(6) },
87 	{ "phy_open_detect", 25, 7, BIT(7) },
88 	{ "phy_short_detect", 25, 8, BIT(8) },
89 	{ "phy_rem_rcvr_count", 26, 0, GENMASK(7, 0) },
90 	{ "phy_loc_rcvr_count", 26, 8, GENMASK(15, 8) },
91 };
92 
93 static int tja11xx_check(struct phy_device *phydev, u8 reg, u16 mask, u16 set)
94 {
95 	int val;
96 
97 	return phy_read_poll_timeout(phydev, reg, val, (val & mask) == set,
98 				     150, 30000, false);
99 }
100 
101 static int phy_modify_check(struct phy_device *phydev, u8 reg,
102 			    u16 mask, u16 set)
103 {
104 	int ret;
105 
106 	ret = phy_modify(phydev, reg, mask, set);
107 	if (ret)
108 		return ret;
109 
110 	return tja11xx_check(phydev, reg, mask, set);
111 }
112 
113 static int tja11xx_enable_reg_write(struct phy_device *phydev)
114 {
115 	return phy_set_bits(phydev, MII_ECTRL, MII_ECTRL_CONFIG_EN);
116 }
117 
118 static int tja11xx_enable_link_control(struct phy_device *phydev)
119 {
120 	return phy_set_bits(phydev, MII_ECTRL, MII_ECTRL_LINK_CONTROL);
121 }
122 
123 static int tja11xx_disable_link_control(struct phy_device *phydev)
124 {
125 	return phy_clear_bits(phydev, MII_ECTRL, MII_ECTRL_LINK_CONTROL);
126 }
127 
128 static int tja11xx_wakeup(struct phy_device *phydev)
129 {
130 	int ret;
131 
132 	ret = phy_read(phydev, MII_ECTRL);
133 	if (ret < 0)
134 		return ret;
135 
136 	switch (ret & MII_ECTRL_POWER_MODE_MASK) {
137 	case MII_ECTRL_POWER_MODE_NO_CHANGE:
138 		break;
139 	case MII_ECTRL_POWER_MODE_NORMAL:
140 		ret = phy_set_bits(phydev, MII_ECTRL, MII_ECTRL_WAKE_REQUEST);
141 		if (ret)
142 			return ret;
143 
144 		ret = phy_clear_bits(phydev, MII_ECTRL, MII_ECTRL_WAKE_REQUEST);
145 		if (ret)
146 			return ret;
147 		break;
148 	case MII_ECTRL_POWER_MODE_STANDBY:
149 		ret = phy_modify_check(phydev, MII_ECTRL,
150 				       MII_ECTRL_POWER_MODE_MASK,
151 				       MII_ECTRL_POWER_MODE_STANDBY);
152 		if (ret)
153 			return ret;
154 
155 		ret = phy_modify(phydev, MII_ECTRL, MII_ECTRL_POWER_MODE_MASK,
156 				 MII_ECTRL_POWER_MODE_NORMAL);
157 		if (ret)
158 			return ret;
159 
160 		ret = phy_modify_check(phydev, MII_GENSTAT,
161 				       MII_GENSTAT_PLL_LOCKED,
162 				       MII_GENSTAT_PLL_LOCKED);
163 		if (ret)
164 			return ret;
165 
166 		return tja11xx_enable_link_control(phydev);
167 	default:
168 		break;
169 	}
170 
171 	return 0;
172 }
173 
174 static int tja11xx_soft_reset(struct phy_device *phydev)
175 {
176 	int ret;
177 
178 	ret = tja11xx_enable_reg_write(phydev);
179 	if (ret)
180 		return ret;
181 
182 	return genphy_soft_reset(phydev);
183 }
184 
185 static int tja11xx_config_aneg_cable_test(struct phy_device *phydev)
186 {
187 	bool finished = false;
188 	int ret;
189 
190 	if (phydev->link)
191 		return 0;
192 
193 	if (!phydev->drv->cable_test_start ||
194 	    !phydev->drv->cable_test_get_status)
195 		return 0;
196 
197 	ret = ethnl_cable_test_alloc(phydev, ETHTOOL_MSG_CABLE_TEST_NTF);
198 	if (ret)
199 		return ret;
200 
201 	ret = phydev->drv->cable_test_start(phydev);
202 	if (ret)
203 		return ret;
204 
205 	/* According to the documentation this test takes 100 usec */
206 	usleep_range(100, 200);
207 
208 	ret = phydev->drv->cable_test_get_status(phydev, &finished);
209 	if (ret)
210 		return ret;
211 
212 	if (finished)
213 		ethnl_cable_test_finished(phydev);
214 
215 	return 0;
216 }
217 
218 static int tja11xx_config_aneg(struct phy_device *phydev)
219 {
220 	int ret, changed = 0;
221 	u16 ctl = 0;
222 
223 	switch (phydev->master_slave_set) {
224 	case MASTER_SLAVE_CFG_MASTER_FORCE:
225 		ctl |= MII_CFG1_MASTER_SLAVE;
226 		break;
227 	case MASTER_SLAVE_CFG_SLAVE_FORCE:
228 		break;
229 	case MASTER_SLAVE_CFG_UNKNOWN:
230 	case MASTER_SLAVE_CFG_UNSUPPORTED:
231 		goto do_test;
232 	default:
233 		phydev_warn(phydev, "Unsupported Master/Slave mode\n");
234 		return -ENOTSUPP;
235 	}
236 
237 	changed = phy_modify_changed(phydev, MII_CFG1, MII_CFG1_MASTER_SLAVE, ctl);
238 	if (changed < 0)
239 		return changed;
240 
241 do_test:
242 	ret = tja11xx_config_aneg_cable_test(phydev);
243 	if (ret)
244 		return ret;
245 
246 	return __genphy_config_aneg(phydev, changed);
247 }
248 
249 static int tja11xx_config_init(struct phy_device *phydev)
250 {
251 	int ret;
252 
253 	ret = tja11xx_enable_reg_write(phydev);
254 	if (ret)
255 		return ret;
256 
257 	phydev->autoneg = AUTONEG_DISABLE;
258 	phydev->speed = SPEED_100;
259 	phydev->duplex = DUPLEX_FULL;
260 
261 	switch (phydev->phy_id & PHY_ID_MASK) {
262 	case PHY_ID_TJA1100:
263 		ret = phy_modify(phydev, MII_CFG1,
264 				 MII_CFG1_AUTO_OP | MII_CFG1_LED_MODE_MASK |
265 				 MII_CFG1_LED_ENABLE,
266 				 MII_CFG1_AUTO_OP | MII_CFG1_LED_MODE_LINKUP |
267 				 MII_CFG1_LED_ENABLE);
268 		if (ret)
269 			return ret;
270 		break;
271 	case PHY_ID_TJA1101:
272 	case PHY_ID_TJA1102:
273 		ret = phy_set_bits(phydev, MII_COMMCFG, MII_COMMCFG_AUTO_OP);
274 		if (ret)
275 			return ret;
276 		break;
277 	default:
278 		return -EINVAL;
279 	}
280 
281 	ret = phy_clear_bits(phydev, MII_CFG1, MII_CFG1_SLEEP_CONFIRM);
282 	if (ret)
283 		return ret;
284 
285 	ret = phy_modify(phydev, MII_CFG2, MII_CFG2_SLEEP_REQUEST_TO,
286 			 MII_CFG2_SLEEP_REQUEST_TO_16MS);
287 	if (ret)
288 		return ret;
289 
290 	ret = tja11xx_wakeup(phydev);
291 	if (ret < 0)
292 		return ret;
293 
294 	/* ACK interrupts by reading the status register */
295 	ret = phy_read(phydev, MII_INTSRC);
296 	if (ret < 0)
297 		return ret;
298 
299 	return 0;
300 }
301 
302 static int tja11xx_read_status(struct phy_device *phydev)
303 {
304 	int ret;
305 
306 	phydev->master_slave_get = MASTER_SLAVE_CFG_UNKNOWN;
307 	phydev->master_slave_state = MASTER_SLAVE_STATE_UNSUPPORTED;
308 
309 	ret = genphy_update_link(phydev);
310 	if (ret)
311 		return ret;
312 
313 	ret = phy_read(phydev, MII_CFG1);
314 	if (ret < 0)
315 		return ret;
316 
317 	if (ret & MII_CFG1_MASTER_SLAVE)
318 		phydev->master_slave_get = MASTER_SLAVE_CFG_MASTER_FORCE;
319 	else
320 		phydev->master_slave_get = MASTER_SLAVE_CFG_SLAVE_FORCE;
321 
322 	if (phydev->link) {
323 		ret = phy_read(phydev, MII_COMMSTAT);
324 		if (ret < 0)
325 			return ret;
326 
327 		if (!(ret & MII_COMMSTAT_LINK_UP))
328 			phydev->link = 0;
329 	}
330 
331 	return 0;
332 }
333 
334 static int tja11xx_get_sqi(struct phy_device *phydev)
335 {
336 	int ret;
337 
338 	ret = phy_read(phydev, MII_COMMSTAT);
339 	if (ret < 0)
340 		return ret;
341 
342 	return FIELD_GET(MII_COMMSTAT_SQI_STATE, ret);
343 }
344 
345 static int tja11xx_get_sqi_max(struct phy_device *phydev)
346 {
347 	return MII_COMMSTAT_SQI_MAX;
348 }
349 
350 static int tja11xx_get_sset_count(struct phy_device *phydev)
351 {
352 	return ARRAY_SIZE(tja11xx_hw_stats);
353 }
354 
355 static void tja11xx_get_strings(struct phy_device *phydev, u8 *data)
356 {
357 	int i;
358 
359 	for (i = 0; i < ARRAY_SIZE(tja11xx_hw_stats); i++) {
360 		strncpy(data + i * ETH_GSTRING_LEN,
361 			tja11xx_hw_stats[i].string, ETH_GSTRING_LEN);
362 	}
363 }
364 
365 static void tja11xx_get_stats(struct phy_device *phydev,
366 			      struct ethtool_stats *stats, u64 *data)
367 {
368 	int i, ret;
369 
370 	for (i = 0; i < ARRAY_SIZE(tja11xx_hw_stats); i++) {
371 		ret = phy_read(phydev, tja11xx_hw_stats[i].reg);
372 		if (ret < 0)
373 			data[i] = U64_MAX;
374 		else {
375 			data[i] = ret & tja11xx_hw_stats[i].mask;
376 			data[i] >>= tja11xx_hw_stats[i].off;
377 		}
378 	}
379 }
380 
381 static int tja11xx_hwmon_read(struct device *dev,
382 			      enum hwmon_sensor_types type,
383 			      u32 attr, int channel, long *value)
384 {
385 	struct phy_device *phydev = dev_get_drvdata(dev);
386 	int ret;
387 
388 	if (type == hwmon_in && attr == hwmon_in_lcrit_alarm) {
389 		ret = phy_read(phydev, MII_INTSRC);
390 		if (ret < 0)
391 			return ret;
392 
393 		*value = !!(ret & MII_INTSRC_TEMP_ERR);
394 		return 0;
395 	}
396 
397 	if (type == hwmon_temp && attr == hwmon_temp_crit_alarm) {
398 		ret = phy_read(phydev, MII_INTSRC);
399 		if (ret < 0)
400 			return ret;
401 
402 		*value = !!(ret & MII_INTSRC_UV_ERR);
403 		return 0;
404 	}
405 
406 	return -EOPNOTSUPP;
407 }
408 
409 static umode_t tja11xx_hwmon_is_visible(const void *data,
410 					enum hwmon_sensor_types type,
411 					u32 attr, int channel)
412 {
413 	if (type == hwmon_in && attr == hwmon_in_lcrit_alarm)
414 		return 0444;
415 
416 	if (type == hwmon_temp && attr == hwmon_temp_crit_alarm)
417 		return 0444;
418 
419 	return 0;
420 }
421 
422 static const struct hwmon_channel_info *tja11xx_hwmon_info[] = {
423 	HWMON_CHANNEL_INFO(in, HWMON_I_LCRIT_ALARM),
424 	HWMON_CHANNEL_INFO(temp, HWMON_T_CRIT_ALARM),
425 	NULL
426 };
427 
428 static const struct hwmon_ops tja11xx_hwmon_hwmon_ops = {
429 	.is_visible	= tja11xx_hwmon_is_visible,
430 	.read		= tja11xx_hwmon_read,
431 };
432 
433 static const struct hwmon_chip_info tja11xx_hwmon_chip_info = {
434 	.ops		= &tja11xx_hwmon_hwmon_ops,
435 	.info		= tja11xx_hwmon_info,
436 };
437 
438 static int tja11xx_hwmon_register(struct phy_device *phydev,
439 				  struct tja11xx_priv *priv)
440 {
441 	struct device *dev = &phydev->mdio.dev;
442 	int i;
443 
444 	priv->hwmon_name = devm_kstrdup(dev, dev_name(dev), GFP_KERNEL);
445 	if (!priv->hwmon_name)
446 		return -ENOMEM;
447 
448 	for (i = 0; priv->hwmon_name[i]; i++)
449 		if (hwmon_is_bad_char(priv->hwmon_name[i]))
450 			priv->hwmon_name[i] = '_';
451 
452 	priv->hwmon_dev =
453 		devm_hwmon_device_register_with_info(dev, priv->hwmon_name,
454 						     phydev,
455 						     &tja11xx_hwmon_chip_info,
456 						     NULL);
457 
458 	return PTR_ERR_OR_ZERO(priv->hwmon_dev);
459 }
460 
461 static int tja11xx_probe(struct phy_device *phydev)
462 {
463 	struct device *dev = &phydev->mdio.dev;
464 	struct tja11xx_priv *priv;
465 
466 	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
467 	if (!priv)
468 		return -ENOMEM;
469 
470 	priv->phydev = phydev;
471 
472 	return tja11xx_hwmon_register(phydev, priv);
473 }
474 
475 static void tja1102_p1_register(struct work_struct *work)
476 {
477 	struct tja11xx_priv *priv = container_of(work, struct tja11xx_priv,
478 						 phy_register_work);
479 	struct phy_device *phydev_phy0 = priv->phydev;
480 	struct mii_bus *bus = phydev_phy0->mdio.bus;
481 	struct device *dev = &phydev_phy0->mdio.dev;
482 	struct device_node *np = dev->of_node;
483 	struct device_node *child;
484 	int ret;
485 
486 	for_each_available_child_of_node(np, child) {
487 		struct phy_device *phy;
488 		int addr;
489 
490 		addr = of_mdio_parse_addr(dev, child);
491 		if (addr < 0) {
492 			dev_err(dev, "Can't parse addr\n");
493 			continue;
494 		} else if (addr != phydev_phy0->mdio.addr + 1) {
495 			/* Currently we care only about double PHY chip TJA1102.
496 			 * If some day NXP will decide to bring chips with more
497 			 * PHYs, this logic should be reworked.
498 			 */
499 			dev_err(dev, "Unexpected address. Should be: %i\n",
500 				phydev_phy0->mdio.addr + 1);
501 			continue;
502 		}
503 
504 		if (mdiobus_is_registered_device(bus, addr)) {
505 			dev_err(dev, "device is already registered\n");
506 			continue;
507 		}
508 
509 		/* Real PHY ID of Port 1 is 0 */
510 		phy = phy_device_create(bus, addr, PHY_ID_TJA1102, false, NULL);
511 		if (IS_ERR(phy)) {
512 			dev_err(dev, "Can't create PHY device for Port 1: %i\n",
513 				addr);
514 			continue;
515 		}
516 
517 		/* Overwrite parent device. phy_device_create() set parent to
518 		 * the mii_bus->dev, which is not correct in case.
519 		 */
520 		phy->mdio.dev.parent = dev;
521 
522 		ret = of_mdiobus_phy_device_register(bus, phy, child, addr);
523 		if (ret) {
524 			/* All resources needed for Port 1 should be already
525 			 * available for Port 0. Both ports use the same
526 			 * interrupt line, so -EPROBE_DEFER would make no sense
527 			 * here.
528 			 */
529 			dev_err(dev, "Can't register Port 1. Unexpected error: %i\n",
530 				ret);
531 			phy_device_free(phy);
532 		}
533 	}
534 }
535 
536 static int tja1102_p0_probe(struct phy_device *phydev)
537 {
538 	struct device *dev = &phydev->mdio.dev;
539 	struct tja11xx_priv *priv;
540 	int ret;
541 
542 	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
543 	if (!priv)
544 		return -ENOMEM;
545 
546 	priv->phydev = phydev;
547 	INIT_WORK(&priv->phy_register_work, tja1102_p1_register);
548 
549 	ret = tja11xx_hwmon_register(phydev, priv);
550 	if (ret)
551 		return ret;
552 
553 	schedule_work(&priv->phy_register_work);
554 
555 	return 0;
556 }
557 
558 static int tja1102_match_phy_device(struct phy_device *phydev, bool port0)
559 {
560 	int ret;
561 
562 	if ((phydev->phy_id & PHY_ID_MASK) != PHY_ID_TJA1102)
563 		return 0;
564 
565 	ret = phy_read(phydev, MII_PHYSID2);
566 	if (ret < 0)
567 		return ret;
568 
569 	/* TJA1102 Port 1 has phyid 0 and doesn't support temperature
570 	 * and undervoltage alarms.
571 	 */
572 	if (port0)
573 		return ret ? 1 : 0;
574 
575 	return !ret;
576 }
577 
578 static int tja1102_p0_match_phy_device(struct phy_device *phydev)
579 {
580 	return tja1102_match_phy_device(phydev, true);
581 }
582 
583 static int tja1102_p1_match_phy_device(struct phy_device *phydev)
584 {
585 	return tja1102_match_phy_device(phydev, false);
586 }
587 
588 static int tja11xx_ack_interrupt(struct phy_device *phydev)
589 {
590 	int ret;
591 
592 	ret = phy_read(phydev, MII_INTSRC);
593 
594 	return (ret < 0) ? ret : 0;
595 }
596 
597 static int tja11xx_config_intr(struct phy_device *phydev)
598 {
599 	int value = 0;
600 
601 	if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
602 		value = MII_INTEN_LINK_FAIL | MII_INTEN_LINK_UP;
603 
604 	return phy_write(phydev, MII_INTEN, value);
605 }
606 
607 static int tja11xx_cable_test_start(struct phy_device *phydev)
608 {
609 	int ret;
610 
611 	ret = phy_clear_bits(phydev, MII_COMMCFG, MII_COMMCFG_AUTO_OP);
612 	if (ret)
613 		return ret;
614 
615 	ret = tja11xx_wakeup(phydev);
616 	if (ret < 0)
617 		return ret;
618 
619 	ret = tja11xx_disable_link_control(phydev);
620 	if (ret < 0)
621 		return ret;
622 
623 	return phy_set_bits(phydev, MII_ECTRL, MII_ECTRL_CABLE_TEST);
624 }
625 
626 /*
627  * | BI_DA+           | BI_DA-                 | Result
628  * | open             | open                   | open
629  * | + short to -     | - short to +           | short
630  * | short to Vdd     | open                   | open
631  * | open             | shot to Vdd            | open
632  * | short to Vdd     | short to Vdd           | short
633  * | shot to GND      | open                   | open
634  * | open             | shot to GND            | open
635  * | short to GND     | shot to GND            | short
636  * | connected to active link partner (master) | shot and open
637  */
638 static int tja11xx_cable_test_report_trans(u32 result)
639 {
640 	u32 mask = MII_EXTSTAT_SHORT_DETECT | MII_EXTSTAT_OPEN_DETECT;
641 
642 	if ((result & mask) == mask) {
643 		/* connected to active link partner (master) */
644 		return ETHTOOL_A_CABLE_RESULT_CODE_UNSPEC;
645 	} else if ((result & mask) == 0) {
646 		return ETHTOOL_A_CABLE_RESULT_CODE_OK;
647 	} else if (result & MII_EXTSTAT_SHORT_DETECT) {
648 		return ETHTOOL_A_CABLE_RESULT_CODE_SAME_SHORT;
649 	} else if (result & MII_EXTSTAT_OPEN_DETECT) {
650 		return ETHTOOL_A_CABLE_RESULT_CODE_OPEN;
651 	} else {
652 		return ETHTOOL_A_CABLE_RESULT_CODE_UNSPEC;
653 	}
654 }
655 
656 static int tja11xx_cable_test_report(struct phy_device *phydev)
657 {
658 	int ret;
659 
660 	ret = phy_read(phydev, MII_EXTSTAT);
661 	if (ret < 0)
662 		return ret;
663 
664 	ethnl_cable_test_result(phydev, ETHTOOL_A_CABLE_PAIR_A,
665 				tja11xx_cable_test_report_trans(ret));
666 
667 	return 0;
668 }
669 
670 static int tja11xx_cable_test_get_status(struct phy_device *phydev,
671 					 bool *finished)
672 {
673 	int ret;
674 
675 	*finished = false;
676 
677 	ret = phy_read(phydev, MII_ECTRL);
678 	if (ret < 0)
679 		return ret;
680 
681 	if (!(ret & MII_ECTRL_CABLE_TEST)) {
682 		*finished = true;
683 
684 		ret = phy_set_bits(phydev, MII_COMMCFG, MII_COMMCFG_AUTO_OP);
685 		if (ret)
686 			return ret;
687 
688 		return tja11xx_cable_test_report(phydev);
689 	}
690 
691 	return 0;
692 }
693 
694 static struct phy_driver tja11xx_driver[] = {
695 	{
696 		PHY_ID_MATCH_MODEL(PHY_ID_TJA1100),
697 		.name		= "NXP TJA1100",
698 		.features       = PHY_BASIC_T1_FEATURES,
699 		.probe		= tja11xx_probe,
700 		.soft_reset	= tja11xx_soft_reset,
701 		.config_aneg	= tja11xx_config_aneg,
702 		.config_init	= tja11xx_config_init,
703 		.read_status	= tja11xx_read_status,
704 		.get_sqi	= tja11xx_get_sqi,
705 		.get_sqi_max	= tja11xx_get_sqi_max,
706 		.suspend	= genphy_suspend,
707 		.resume		= genphy_resume,
708 		.set_loopback   = genphy_loopback,
709 		/* Statistics */
710 		.get_sset_count = tja11xx_get_sset_count,
711 		.get_strings	= tja11xx_get_strings,
712 		.get_stats	= tja11xx_get_stats,
713 	}, {
714 		PHY_ID_MATCH_MODEL(PHY_ID_TJA1101),
715 		.name		= "NXP TJA1101",
716 		.features       = PHY_BASIC_T1_FEATURES,
717 		.probe		= tja11xx_probe,
718 		.soft_reset	= tja11xx_soft_reset,
719 		.config_aneg	= tja11xx_config_aneg,
720 		.config_init	= tja11xx_config_init,
721 		.read_status	= tja11xx_read_status,
722 		.get_sqi	= tja11xx_get_sqi,
723 		.get_sqi_max	= tja11xx_get_sqi_max,
724 		.suspend	= genphy_suspend,
725 		.resume		= genphy_resume,
726 		.set_loopback   = genphy_loopback,
727 		/* Statistics */
728 		.get_sset_count = tja11xx_get_sset_count,
729 		.get_strings	= tja11xx_get_strings,
730 		.get_stats	= tja11xx_get_stats,
731 	}, {
732 		.name		= "NXP TJA1102 Port 0",
733 		.features       = PHY_BASIC_T1_FEATURES,
734 		.flags          = PHY_POLL_CABLE_TEST,
735 		.probe		= tja1102_p0_probe,
736 		.soft_reset	= tja11xx_soft_reset,
737 		.config_aneg	= tja11xx_config_aneg,
738 		.config_init	= tja11xx_config_init,
739 		.read_status	= tja11xx_read_status,
740 		.get_sqi	= tja11xx_get_sqi,
741 		.get_sqi_max	= tja11xx_get_sqi_max,
742 		.match_phy_device = tja1102_p0_match_phy_device,
743 		.suspend	= genphy_suspend,
744 		.resume		= genphy_resume,
745 		.set_loopback   = genphy_loopback,
746 		/* Statistics */
747 		.get_sset_count = tja11xx_get_sset_count,
748 		.get_strings	= tja11xx_get_strings,
749 		.get_stats	= tja11xx_get_stats,
750 		.ack_interrupt	= tja11xx_ack_interrupt,
751 		.config_intr	= tja11xx_config_intr,
752 		.cable_test_start = tja11xx_cable_test_start,
753 		.cable_test_get_status = tja11xx_cable_test_get_status,
754 	}, {
755 		.name		= "NXP TJA1102 Port 1",
756 		.features       = PHY_BASIC_T1_FEATURES,
757 		.flags          = PHY_POLL_CABLE_TEST,
758 		/* currently no probe for Port 1 is need */
759 		.soft_reset	= tja11xx_soft_reset,
760 		.config_aneg	= tja11xx_config_aneg,
761 		.config_init	= tja11xx_config_init,
762 		.read_status	= tja11xx_read_status,
763 		.get_sqi	= tja11xx_get_sqi,
764 		.get_sqi_max	= tja11xx_get_sqi_max,
765 		.match_phy_device = tja1102_p1_match_phy_device,
766 		.suspend	= genphy_suspend,
767 		.resume		= genphy_resume,
768 		.set_loopback   = genphy_loopback,
769 		/* Statistics */
770 		.get_sset_count = tja11xx_get_sset_count,
771 		.get_strings	= tja11xx_get_strings,
772 		.get_stats	= tja11xx_get_stats,
773 		.ack_interrupt	= tja11xx_ack_interrupt,
774 		.config_intr	= tja11xx_config_intr,
775 		.cable_test_start = tja11xx_cable_test_start,
776 		.cable_test_get_status = tja11xx_cable_test_get_status,
777 	}
778 };
779 
780 module_phy_driver(tja11xx_driver);
781 
782 static struct mdio_device_id __maybe_unused tja11xx_tbl[] = {
783 	{ PHY_ID_MATCH_MODEL(PHY_ID_TJA1100) },
784 	{ PHY_ID_MATCH_MODEL(PHY_ID_TJA1101) },
785 	{ PHY_ID_MATCH_MODEL(PHY_ID_TJA1102) },
786 	{ }
787 };
788 
789 MODULE_DEVICE_TABLE(mdio, tja11xx_tbl);
790 
791 MODULE_AUTHOR("Marek Vasut <marex@denx.de>");
792 MODULE_DESCRIPTION("NXP TJA11xx BoardR-Reach PHY driver");
793 MODULE_LICENSE("GPL");
794