xref: /openbmc/linux/drivers/net/phy/marvell10g.c (revision 3381df09)
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Marvell 10G 88x3310 PHY driver
4  *
5  * Based upon the ID registers, this PHY appears to be a mixture of IPs
6  * from two different companies.
7  *
8  * There appears to be several different data paths through the PHY which
9  * are automatically managed by the PHY.  The following has been determined
10  * via observation and experimentation for a setup using single-lane Serdes:
11  *
12  *       SGMII PHYXS -- BASE-T PCS -- 10G PMA -- AN -- Copper (for <= 1G)
13  *  10GBASE-KR PHYXS -- BASE-T PCS -- 10G PMA -- AN -- Copper (for 10G)
14  *  10GBASE-KR PHYXS -- BASE-R PCS -- Fiber
15  *
16  * With XAUI, observation shows:
17  *
18  *        XAUI PHYXS -- <appropriate PCS as above>
19  *
20  * and no switching of the host interface mode occurs.
21  *
22  * If both the fiber and copper ports are connected, the first to gain
23  * link takes priority and the other port is completely locked out.
24  */
25 #include <linux/ctype.h>
26 #include <linux/delay.h>
27 #include <linux/hwmon.h>
28 #include <linux/marvell_phy.h>
29 #include <linux/phy.h>
30 #include <linux/sfp.h>
31 
32 #define MV_PHY_ALASKA_NBT_QUIRK_MASK	0xfffffffe
33 #define MV_PHY_ALASKA_NBT_QUIRK_REV	(MARVELL_PHY_ID_88X3310 | 0xa)
34 
35 enum {
36 	MV_PMA_BOOT		= 0xc050,
37 	MV_PMA_BOOT_FATAL	= BIT(0),
38 
39 	MV_PCS_BASE_T		= 0x0000,
40 	MV_PCS_BASE_R		= 0x1000,
41 	MV_PCS_1000BASEX	= 0x2000,
42 
43 	MV_PCS_CSCR1		= 0x8000,
44 	MV_PCS_CSCR1_ED_MASK	= 0x0300,
45 	MV_PCS_CSCR1_ED_OFF	= 0x0000,
46 	MV_PCS_CSCR1_ED_RX	= 0x0200,
47 	MV_PCS_CSCR1_ED_NLP	= 0x0300,
48 	MV_PCS_CSCR1_MDIX_MASK	= 0x0060,
49 	MV_PCS_CSCR1_MDIX_MDI	= 0x0000,
50 	MV_PCS_CSCR1_MDIX_MDIX	= 0x0020,
51 	MV_PCS_CSCR1_MDIX_AUTO	= 0x0060,
52 
53 	MV_PCS_CSSR1		= 0x8008,
54 	MV_PCS_CSSR1_SPD1_MASK	= 0xc000,
55 	MV_PCS_CSSR1_SPD1_SPD2	= 0xc000,
56 	MV_PCS_CSSR1_SPD1_1000	= 0x8000,
57 	MV_PCS_CSSR1_SPD1_100	= 0x4000,
58 	MV_PCS_CSSR1_SPD1_10	= 0x0000,
59 	MV_PCS_CSSR1_DUPLEX_FULL= BIT(13),
60 	MV_PCS_CSSR1_RESOLVED	= BIT(11),
61 	MV_PCS_CSSR1_MDIX	= BIT(6),
62 	MV_PCS_CSSR1_SPD2_MASK	= 0x000c,
63 	MV_PCS_CSSR1_SPD2_5000	= 0x0008,
64 	MV_PCS_CSSR1_SPD2_2500	= 0x0004,
65 	MV_PCS_CSSR1_SPD2_10000	= 0x0000,
66 
67 	/* These registers appear at 0x800X and 0xa00X - the 0xa00X control
68 	 * registers appear to set themselves to the 0x800X when AN is
69 	 * restarted, but status registers appear readable from either.
70 	 */
71 	MV_AN_CTRL1000		= 0x8000, /* 1000base-T control register */
72 	MV_AN_STAT1000		= 0x8001, /* 1000base-T status register */
73 
74 	/* Vendor2 MMD registers */
75 	MV_V2_PORT_CTRL		= 0xf001,
76 	MV_V2_PORT_CTRL_PWRDOWN = 0x0800,
77 	MV_V2_TEMP_CTRL		= 0xf08a,
78 	MV_V2_TEMP_CTRL_MASK	= 0xc000,
79 	MV_V2_TEMP_CTRL_SAMPLE	= 0x0000,
80 	MV_V2_TEMP_CTRL_DISABLE	= 0xc000,
81 	MV_V2_TEMP		= 0xf08c,
82 	MV_V2_TEMP_UNKNOWN	= 0x9600, /* unknown function */
83 };
84 
85 struct mv3310_priv {
86 	struct device *hwmon_dev;
87 	char *hwmon_name;
88 };
89 
90 #ifdef CONFIG_HWMON
91 static umode_t mv3310_hwmon_is_visible(const void *data,
92 				       enum hwmon_sensor_types type,
93 				       u32 attr, int channel)
94 {
95 	if (type == hwmon_chip && attr == hwmon_chip_update_interval)
96 		return 0444;
97 	if (type == hwmon_temp && attr == hwmon_temp_input)
98 		return 0444;
99 	return 0;
100 }
101 
102 static int mv3310_hwmon_read(struct device *dev, enum hwmon_sensor_types type,
103 			     u32 attr, int channel, long *value)
104 {
105 	struct phy_device *phydev = dev_get_drvdata(dev);
106 	int temp;
107 
108 	if (type == hwmon_chip && attr == hwmon_chip_update_interval) {
109 		*value = MSEC_PER_SEC;
110 		return 0;
111 	}
112 
113 	if (type == hwmon_temp && attr == hwmon_temp_input) {
114 		temp = phy_read_mmd(phydev, MDIO_MMD_VEND2, MV_V2_TEMP);
115 		if (temp < 0)
116 			return temp;
117 
118 		*value = ((temp & 0xff) - 75) * 1000;
119 
120 		return 0;
121 	}
122 
123 	return -EOPNOTSUPP;
124 }
125 
126 static const struct hwmon_ops mv3310_hwmon_ops = {
127 	.is_visible = mv3310_hwmon_is_visible,
128 	.read = mv3310_hwmon_read,
129 };
130 
131 static u32 mv3310_hwmon_chip_config[] = {
132 	HWMON_C_REGISTER_TZ | HWMON_C_UPDATE_INTERVAL,
133 	0,
134 };
135 
136 static const struct hwmon_channel_info mv3310_hwmon_chip = {
137 	.type = hwmon_chip,
138 	.config = mv3310_hwmon_chip_config,
139 };
140 
141 static u32 mv3310_hwmon_temp_config[] = {
142 	HWMON_T_INPUT,
143 	0,
144 };
145 
146 static const struct hwmon_channel_info mv3310_hwmon_temp = {
147 	.type = hwmon_temp,
148 	.config = mv3310_hwmon_temp_config,
149 };
150 
151 static const struct hwmon_channel_info *mv3310_hwmon_info[] = {
152 	&mv3310_hwmon_chip,
153 	&mv3310_hwmon_temp,
154 	NULL,
155 };
156 
157 static const struct hwmon_chip_info mv3310_hwmon_chip_info = {
158 	.ops = &mv3310_hwmon_ops,
159 	.info = mv3310_hwmon_info,
160 };
161 
162 static int mv3310_hwmon_config(struct phy_device *phydev, bool enable)
163 {
164 	u16 val;
165 	int ret;
166 
167 	ret = phy_write_mmd(phydev, MDIO_MMD_VEND2, MV_V2_TEMP,
168 			    MV_V2_TEMP_UNKNOWN);
169 	if (ret < 0)
170 		return ret;
171 
172 	val = enable ? MV_V2_TEMP_CTRL_SAMPLE : MV_V2_TEMP_CTRL_DISABLE;
173 
174 	return phy_modify_mmd(phydev, MDIO_MMD_VEND2, MV_V2_TEMP_CTRL,
175 			      MV_V2_TEMP_CTRL_MASK, val);
176 }
177 
178 static void mv3310_hwmon_disable(void *data)
179 {
180 	struct phy_device *phydev = data;
181 
182 	mv3310_hwmon_config(phydev, false);
183 }
184 
185 static int mv3310_hwmon_probe(struct phy_device *phydev)
186 {
187 	struct device *dev = &phydev->mdio.dev;
188 	struct mv3310_priv *priv = dev_get_drvdata(&phydev->mdio.dev);
189 	int i, j, ret;
190 
191 	priv->hwmon_name = devm_kstrdup(dev, dev_name(dev), GFP_KERNEL);
192 	if (!priv->hwmon_name)
193 		return -ENODEV;
194 
195 	for (i = j = 0; priv->hwmon_name[i]; i++) {
196 		if (isalnum(priv->hwmon_name[i])) {
197 			if (i != j)
198 				priv->hwmon_name[j] = priv->hwmon_name[i];
199 			j++;
200 		}
201 	}
202 	priv->hwmon_name[j] = '\0';
203 
204 	ret = mv3310_hwmon_config(phydev, true);
205 	if (ret)
206 		return ret;
207 
208 	ret = devm_add_action_or_reset(dev, mv3310_hwmon_disable, phydev);
209 	if (ret)
210 		return ret;
211 
212 	priv->hwmon_dev = devm_hwmon_device_register_with_info(dev,
213 				priv->hwmon_name, phydev,
214 				&mv3310_hwmon_chip_info, NULL);
215 
216 	return PTR_ERR_OR_ZERO(priv->hwmon_dev);
217 }
218 #else
219 static inline int mv3310_hwmon_config(struct phy_device *phydev, bool enable)
220 {
221 	return 0;
222 }
223 
224 static int mv3310_hwmon_probe(struct phy_device *phydev)
225 {
226 	return 0;
227 }
228 #endif
229 
230 static int mv3310_power_down(struct phy_device *phydev)
231 {
232 	return phy_set_bits_mmd(phydev, MDIO_MMD_VEND2, MV_V2_PORT_CTRL,
233 				MV_V2_PORT_CTRL_PWRDOWN);
234 }
235 
236 static int mv3310_power_up(struct phy_device *phydev)
237 {
238 	return phy_clear_bits_mmd(phydev, MDIO_MMD_VEND2, MV_V2_PORT_CTRL,
239 				  MV_V2_PORT_CTRL_PWRDOWN);
240 }
241 
242 static int mv3310_reset(struct phy_device *phydev, u32 unit)
243 {
244 	int val, err;
245 
246 	err = phy_modify_mmd(phydev, MDIO_MMD_PCS, unit + MDIO_CTRL1,
247 			     MDIO_CTRL1_RESET, MDIO_CTRL1_RESET);
248 	if (err < 0)
249 		return err;
250 
251 	return phy_read_mmd_poll_timeout(phydev, MDIO_MMD_PCS,
252 					 unit + MDIO_CTRL1, val,
253 					 !(val & MDIO_CTRL1_RESET),
254 					 5000, 100000, true);
255 }
256 
257 static int mv3310_get_edpd(struct phy_device *phydev, u16 *edpd)
258 {
259 	int val;
260 
261 	val = phy_read_mmd(phydev, MDIO_MMD_PCS, MV_PCS_CSCR1);
262 	if (val < 0)
263 		return val;
264 
265 	switch (val & MV_PCS_CSCR1_ED_MASK) {
266 	case MV_PCS_CSCR1_ED_NLP:
267 		*edpd = 1000;
268 		break;
269 	case MV_PCS_CSCR1_ED_RX:
270 		*edpd = ETHTOOL_PHY_EDPD_NO_TX;
271 		break;
272 	default:
273 		*edpd = ETHTOOL_PHY_EDPD_DISABLE;
274 		break;
275 	}
276 	return 0;
277 }
278 
279 static int mv3310_set_edpd(struct phy_device *phydev, u16 edpd)
280 {
281 	u16 val;
282 	int err;
283 
284 	switch (edpd) {
285 	case 1000:
286 	case ETHTOOL_PHY_EDPD_DFLT_TX_MSECS:
287 		val = MV_PCS_CSCR1_ED_NLP;
288 		break;
289 
290 	case ETHTOOL_PHY_EDPD_NO_TX:
291 		val = MV_PCS_CSCR1_ED_RX;
292 		break;
293 
294 	case ETHTOOL_PHY_EDPD_DISABLE:
295 		val = MV_PCS_CSCR1_ED_OFF;
296 		break;
297 
298 	default:
299 		return -EINVAL;
300 	}
301 
302 	err = phy_modify_mmd_changed(phydev, MDIO_MMD_PCS, MV_PCS_CSCR1,
303 				     MV_PCS_CSCR1_ED_MASK, val);
304 	if (err > 0)
305 		err = mv3310_reset(phydev, MV_PCS_BASE_T);
306 
307 	return err;
308 }
309 
310 static int mv3310_sfp_insert(void *upstream, const struct sfp_eeprom_id *id)
311 {
312 	struct phy_device *phydev = upstream;
313 	__ETHTOOL_DECLARE_LINK_MODE_MASK(support) = { 0, };
314 	phy_interface_t iface;
315 
316 	sfp_parse_support(phydev->sfp_bus, id, support);
317 	iface = sfp_select_interface(phydev->sfp_bus, support);
318 
319 	if (iface != PHY_INTERFACE_MODE_10GBASER) {
320 		dev_err(&phydev->mdio.dev, "incompatible SFP module inserted\n");
321 		return -EINVAL;
322 	}
323 	return 0;
324 }
325 
326 static const struct sfp_upstream_ops mv3310_sfp_ops = {
327 	.attach = phy_sfp_attach,
328 	.detach = phy_sfp_detach,
329 	.module_insert = mv3310_sfp_insert,
330 };
331 
332 static int mv3310_probe(struct phy_device *phydev)
333 {
334 	struct mv3310_priv *priv;
335 	u32 mmd_mask = MDIO_DEVS_PMAPMD | MDIO_DEVS_AN;
336 	int ret;
337 
338 	if (!phydev->is_c45 ||
339 	    (phydev->c45_ids.devices_in_package & mmd_mask) != mmd_mask)
340 		return -ENODEV;
341 
342 	ret = phy_read_mmd(phydev, MDIO_MMD_PMAPMD, MV_PMA_BOOT);
343 	if (ret < 0)
344 		return ret;
345 
346 	if (ret & MV_PMA_BOOT_FATAL) {
347 		dev_warn(&phydev->mdio.dev,
348 			 "PHY failed to boot firmware, status=%04x\n", ret);
349 		return -ENODEV;
350 	}
351 
352 	priv = devm_kzalloc(&phydev->mdio.dev, sizeof(*priv), GFP_KERNEL);
353 	if (!priv)
354 		return -ENOMEM;
355 
356 	dev_set_drvdata(&phydev->mdio.dev, priv);
357 
358 	/* Powering down the port when not in use saves about 600mW */
359 	ret = mv3310_power_down(phydev);
360 	if (ret)
361 		return ret;
362 
363 	ret = mv3310_hwmon_probe(phydev);
364 	if (ret)
365 		return ret;
366 
367 	return phy_sfp_probe(phydev, &mv3310_sfp_ops);
368 }
369 
370 static int mv3310_suspend(struct phy_device *phydev)
371 {
372 	return mv3310_power_down(phydev);
373 }
374 
375 static int mv3310_resume(struct phy_device *phydev)
376 {
377 	int ret;
378 
379 	ret = mv3310_power_up(phydev);
380 	if (ret)
381 		return ret;
382 
383 	return mv3310_hwmon_config(phydev, true);
384 }
385 
386 /* Some PHYs in the Alaska family such as the 88X3310 and the 88E2010
387  * don't set bit 14 in PMA Extended Abilities (1.11), although they do
388  * support 2.5GBASET and 5GBASET. For these models, we can still read their
389  * 2.5G/5G extended abilities register (1.21). We detect these models based on
390  * the PMA device identifier, with a mask matching models known to have this
391  * issue
392  */
393 static bool mv3310_has_pma_ngbaset_quirk(struct phy_device *phydev)
394 {
395 	if (!(phydev->c45_ids.devices_in_package & MDIO_DEVS_PMAPMD))
396 		return false;
397 
398 	/* Only some revisions of the 88X3310 family PMA seem to be impacted */
399 	return (phydev->c45_ids.device_ids[MDIO_MMD_PMAPMD] &
400 		MV_PHY_ALASKA_NBT_QUIRK_MASK) == MV_PHY_ALASKA_NBT_QUIRK_REV;
401 }
402 
403 static int mv3310_config_init(struct phy_device *phydev)
404 {
405 	int err;
406 
407 	/* Check that the PHY interface type is compatible */
408 	if (phydev->interface != PHY_INTERFACE_MODE_SGMII &&
409 	    phydev->interface != PHY_INTERFACE_MODE_2500BASEX &&
410 	    phydev->interface != PHY_INTERFACE_MODE_XAUI &&
411 	    phydev->interface != PHY_INTERFACE_MODE_RXAUI &&
412 	    phydev->interface != PHY_INTERFACE_MODE_10GBASER)
413 		return -ENODEV;
414 
415 	phydev->mdix_ctrl = ETH_TP_MDI_AUTO;
416 
417 	/* Power up so reset works */
418 	err = mv3310_power_up(phydev);
419 	if (err)
420 		return err;
421 
422 	/* Enable EDPD mode - saving 600mW */
423 	return mv3310_set_edpd(phydev, ETHTOOL_PHY_EDPD_DFLT_TX_MSECS);
424 }
425 
426 static int mv3310_get_features(struct phy_device *phydev)
427 {
428 	int ret, val;
429 
430 	ret = genphy_c45_pma_read_abilities(phydev);
431 	if (ret)
432 		return ret;
433 
434 	if (mv3310_has_pma_ngbaset_quirk(phydev)) {
435 		val = phy_read_mmd(phydev, MDIO_MMD_PMAPMD,
436 				   MDIO_PMA_NG_EXTABLE);
437 		if (val < 0)
438 			return val;
439 
440 		linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
441 				 phydev->supported,
442 				 val & MDIO_PMA_NG_EXTABLE_2_5GBT);
443 
444 		linkmode_mod_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT,
445 				 phydev->supported,
446 				 val & MDIO_PMA_NG_EXTABLE_5GBT);
447 	}
448 
449 	return 0;
450 }
451 
452 static int mv3310_config_mdix(struct phy_device *phydev)
453 {
454 	u16 val;
455 	int err;
456 
457 	switch (phydev->mdix_ctrl) {
458 	case ETH_TP_MDI_AUTO:
459 		val = MV_PCS_CSCR1_MDIX_AUTO;
460 		break;
461 	case ETH_TP_MDI_X:
462 		val = MV_PCS_CSCR1_MDIX_MDIX;
463 		break;
464 	case ETH_TP_MDI:
465 		val = MV_PCS_CSCR1_MDIX_MDI;
466 		break;
467 	default:
468 		return -EINVAL;
469 	}
470 
471 	err = phy_modify_mmd_changed(phydev, MDIO_MMD_PCS, MV_PCS_CSCR1,
472 				     MV_PCS_CSCR1_MDIX_MASK, val);
473 	if (err > 0)
474 		err = mv3310_reset(phydev, MV_PCS_BASE_T);
475 
476 	return err;
477 }
478 
479 static int mv3310_config_aneg(struct phy_device *phydev)
480 {
481 	bool changed = false;
482 	u16 reg;
483 	int ret;
484 
485 	ret = mv3310_config_mdix(phydev);
486 	if (ret < 0)
487 		return ret;
488 
489 	if (phydev->autoneg == AUTONEG_DISABLE)
490 		return genphy_c45_pma_setup_forced(phydev);
491 
492 	ret = genphy_c45_an_config_aneg(phydev);
493 	if (ret < 0)
494 		return ret;
495 	if (ret > 0)
496 		changed = true;
497 
498 	/* Clause 45 has no standardized support for 1000BaseT, therefore
499 	 * use vendor registers for this mode.
500 	 */
501 	reg = linkmode_adv_to_mii_ctrl1000_t(phydev->advertising);
502 	ret = phy_modify_mmd_changed(phydev, MDIO_MMD_AN, MV_AN_CTRL1000,
503 			     ADVERTISE_1000FULL | ADVERTISE_1000HALF, reg);
504 	if (ret < 0)
505 		return ret;
506 	if (ret > 0)
507 		changed = true;
508 
509 	return genphy_c45_check_and_restart_aneg(phydev, changed);
510 }
511 
512 static int mv3310_aneg_done(struct phy_device *phydev)
513 {
514 	int val;
515 
516 	val = phy_read_mmd(phydev, MDIO_MMD_PCS, MV_PCS_BASE_R + MDIO_STAT1);
517 	if (val < 0)
518 		return val;
519 
520 	if (val & MDIO_STAT1_LSTATUS)
521 		return 1;
522 
523 	return genphy_c45_aneg_done(phydev);
524 }
525 
526 static void mv3310_update_interface(struct phy_device *phydev)
527 {
528 	if ((phydev->interface == PHY_INTERFACE_MODE_SGMII ||
529 	     phydev->interface == PHY_INTERFACE_MODE_2500BASEX ||
530 	     phydev->interface == PHY_INTERFACE_MODE_10GBASER) &&
531 	    phydev->link) {
532 		/* The PHY automatically switches its serdes interface (and
533 		 * active PHYXS instance) between Cisco SGMII, 10GBase-R and
534 		 * 2500BaseX modes according to the speed.  Florian suggests
535 		 * setting phydev->interface to communicate this to the MAC.
536 		 * Only do this if we are already in one of the above modes.
537 		 */
538 		switch (phydev->speed) {
539 		case SPEED_10000:
540 			phydev->interface = PHY_INTERFACE_MODE_10GBASER;
541 			break;
542 		case SPEED_2500:
543 			phydev->interface = PHY_INTERFACE_MODE_2500BASEX;
544 			break;
545 		case SPEED_1000:
546 		case SPEED_100:
547 		case SPEED_10:
548 			phydev->interface = PHY_INTERFACE_MODE_SGMII;
549 			break;
550 		default:
551 			break;
552 		}
553 	}
554 }
555 
556 /* 10GBASE-ER,LR,LRM,SR do not support autonegotiation. */
557 static int mv3310_read_status_10gbaser(struct phy_device *phydev)
558 {
559 	phydev->link = 1;
560 	phydev->speed = SPEED_10000;
561 	phydev->duplex = DUPLEX_FULL;
562 
563 	return 0;
564 }
565 
566 static int mv3310_read_status_copper(struct phy_device *phydev)
567 {
568 	int cssr1, speed, val;
569 
570 	val = genphy_c45_read_link(phydev);
571 	if (val < 0)
572 		return val;
573 
574 	val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_STAT1);
575 	if (val < 0)
576 		return val;
577 
578 	cssr1 = phy_read_mmd(phydev, MDIO_MMD_PCS, MV_PCS_CSSR1);
579 	if (cssr1 < 0)
580 		return val;
581 
582 	/* If the link settings are not resolved, mark the link down */
583 	if (!(cssr1 & MV_PCS_CSSR1_RESOLVED)) {
584 		phydev->link = 0;
585 		return 0;
586 	}
587 
588 	/* Read the copper link settings */
589 	speed = cssr1 & MV_PCS_CSSR1_SPD1_MASK;
590 	if (speed == MV_PCS_CSSR1_SPD1_SPD2)
591 		speed |= cssr1 & MV_PCS_CSSR1_SPD2_MASK;
592 
593 	switch (speed) {
594 	case MV_PCS_CSSR1_SPD1_SPD2 | MV_PCS_CSSR1_SPD2_10000:
595 		phydev->speed = SPEED_10000;
596 		break;
597 
598 	case MV_PCS_CSSR1_SPD1_SPD2 | MV_PCS_CSSR1_SPD2_5000:
599 		phydev->speed = SPEED_5000;
600 		break;
601 
602 	case MV_PCS_CSSR1_SPD1_SPD2 | MV_PCS_CSSR1_SPD2_2500:
603 		phydev->speed = SPEED_2500;
604 		break;
605 
606 	case MV_PCS_CSSR1_SPD1_1000:
607 		phydev->speed = SPEED_1000;
608 		break;
609 
610 	case MV_PCS_CSSR1_SPD1_100:
611 		phydev->speed = SPEED_100;
612 		break;
613 
614 	case MV_PCS_CSSR1_SPD1_10:
615 		phydev->speed = SPEED_10;
616 		break;
617 	}
618 
619 	phydev->duplex = cssr1 & MV_PCS_CSSR1_DUPLEX_FULL ?
620 			 DUPLEX_FULL : DUPLEX_HALF;
621 	phydev->mdix = cssr1 & MV_PCS_CSSR1_MDIX ?
622 		       ETH_TP_MDI_X : ETH_TP_MDI;
623 
624 	if (val & MDIO_AN_STAT1_COMPLETE) {
625 		val = genphy_c45_read_lpa(phydev);
626 		if (val < 0)
627 			return val;
628 
629 		/* Read the link partner's 1G advertisement */
630 		val = phy_read_mmd(phydev, MDIO_MMD_AN, MV_AN_STAT1000);
631 		if (val < 0)
632 			return val;
633 
634 		mii_stat1000_mod_linkmode_lpa_t(phydev->lp_advertising, val);
635 
636 		/* Update the pause status */
637 		phy_resolve_aneg_pause(phydev);
638 	}
639 
640 	return 0;
641 }
642 
643 static int mv3310_read_status(struct phy_device *phydev)
644 {
645 	int err, val;
646 
647 	phydev->speed = SPEED_UNKNOWN;
648 	phydev->duplex = DUPLEX_UNKNOWN;
649 	linkmode_zero(phydev->lp_advertising);
650 	phydev->link = 0;
651 	phydev->pause = 0;
652 	phydev->asym_pause = 0;
653 	phydev->mdix = ETH_TP_MDI_INVALID;
654 
655 	val = phy_read_mmd(phydev, MDIO_MMD_PCS, MV_PCS_BASE_R + MDIO_STAT1);
656 	if (val < 0)
657 		return val;
658 
659 	if (val & MDIO_STAT1_LSTATUS)
660 		err = mv3310_read_status_10gbaser(phydev);
661 	else
662 		err = mv3310_read_status_copper(phydev);
663 	if (err < 0)
664 		return err;
665 
666 	if (phydev->link)
667 		mv3310_update_interface(phydev);
668 
669 	return 0;
670 }
671 
672 static int mv3310_get_tunable(struct phy_device *phydev,
673 			      struct ethtool_tunable *tuna, void *data)
674 {
675 	switch (tuna->id) {
676 	case ETHTOOL_PHY_EDPD:
677 		return mv3310_get_edpd(phydev, data);
678 	default:
679 		return -EOPNOTSUPP;
680 	}
681 }
682 
683 static int mv3310_set_tunable(struct phy_device *phydev,
684 			      struct ethtool_tunable *tuna, const void *data)
685 {
686 	switch (tuna->id) {
687 	case ETHTOOL_PHY_EDPD:
688 		return mv3310_set_edpd(phydev, *(u16 *)data);
689 	default:
690 		return -EOPNOTSUPP;
691 	}
692 }
693 
694 static struct phy_driver mv3310_drivers[] = {
695 	{
696 		.phy_id		= MARVELL_PHY_ID_88X3310,
697 		.phy_id_mask	= MARVELL_PHY_ID_MASK,
698 		.name		= "mv88x3310",
699 		.get_features	= mv3310_get_features,
700 		.soft_reset	= genphy_no_soft_reset,
701 		.config_init	= mv3310_config_init,
702 		.probe		= mv3310_probe,
703 		.suspend	= mv3310_suspend,
704 		.resume		= mv3310_resume,
705 		.config_aneg	= mv3310_config_aneg,
706 		.aneg_done	= mv3310_aneg_done,
707 		.read_status	= mv3310_read_status,
708 		.get_tunable	= mv3310_get_tunable,
709 		.set_tunable	= mv3310_set_tunable,
710 	},
711 	{
712 		.phy_id		= MARVELL_PHY_ID_88E2110,
713 		.phy_id_mask	= MARVELL_PHY_ID_MASK,
714 		.name		= "mv88x2110",
715 		.probe		= mv3310_probe,
716 		.suspend	= mv3310_suspend,
717 		.resume		= mv3310_resume,
718 		.soft_reset	= genphy_no_soft_reset,
719 		.config_init	= mv3310_config_init,
720 		.config_aneg	= mv3310_config_aneg,
721 		.aneg_done	= mv3310_aneg_done,
722 		.read_status	= mv3310_read_status,
723 		.get_tunable	= mv3310_get_tunable,
724 		.set_tunable	= mv3310_set_tunable,
725 	},
726 };
727 
728 module_phy_driver(mv3310_drivers);
729 
730 static struct mdio_device_id __maybe_unused mv3310_tbl[] = {
731 	{ MARVELL_PHY_ID_88X3310, MARVELL_PHY_ID_MASK },
732 	{ MARVELL_PHY_ID_88E2110, MARVELL_PHY_ID_MASK },
733 	{ },
734 };
735 MODULE_DEVICE_TABLE(mdio, mv3310_tbl);
736 MODULE_DESCRIPTION("Marvell Alaska X 10Gigabit Ethernet PHY driver (MV88X3310)");
737 MODULE_LICENSE("GPL");
738