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v4.17
 
  1/*
  2 * drivers/net/phy/smsc.c
  3 *
  4 * Driver for SMSC PHYs
  5 *
  6 * Author: Herbert Valerio Riedel
  7 *
  8 * Copyright (c) 2006 Herbert Valerio Riedel <hvr@gnu.org>
  9 *
 10 * This program is free software; you can redistribute  it and/or modify it
 11 * under  the terms of  the GNU General  Public License as published by the
 12 * Free Software Foundation;  either version 2 of the  License, or (at your
 13 * option) any later version.
 14 *
 15 * Support added for SMSC LAN8187 and LAN8700 by steve.glendinning@shawell.net
 16 *
 17 */
 18
 
 19#include <linux/kernel.h>
 20#include <linux/module.h>
 21#include <linux/mii.h>
 22#include <linux/ethtool.h>
 23#include <linux/of.h>
 24#include <linux/phy.h>
 25#include <linux/netdevice.h>
 26#include <linux/smscphy.h>
 27
 
 
 
 
 
 
 
 
 
 
 
 28struct smsc_hw_stat {
 29	const char *string;
 30	u8 reg;
 31	u8 bits;
 32};
 33
 34static struct smsc_hw_stat smsc_hw_stats[] = {
 35	{ "phy_symbol_errors", 26, 16},
 36};
 37
 38struct smsc_phy_priv {
 
 39	bool energy_enable;
 40};
 41
 42static int smsc_phy_config_intr(struct phy_device *phydev)
 43{
 44	int rc = phy_write (phydev, MII_LAN83C185_IM,
 45			((PHY_INTERRUPT_ENABLED == phydev->interrupts)
 46			? MII_LAN83C185_ISF_INT_PHYLIB_EVENTS
 47			: 0));
 48
 49	return rc < 0 ? rc : 0;
 50}
 51
 52static int smsc_phy_ack_interrupt(struct phy_device *phydev)
 53{
 54	int rc = phy_read (phydev, MII_LAN83C185_ISF);
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 55
 56	return rc < 0 ? rc : 0;
 57}
 58
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 59static int smsc_phy_config_init(struct phy_device *phydev)
 60{
 61	struct smsc_phy_priv *priv = phydev->priv;
 
 62
 63	int rc = phy_read(phydev, MII_LAN83C185_CTRL_STATUS);
 
 
 
 64
 65	if (rc < 0)
 66		return rc;
 67
 68	if (priv->energy_enable) {
 69		/* Enable energy detect mode for this SMSC Transceivers */
 70		rc = phy_write(phydev, MII_LAN83C185_CTRL_STATUS,
 71			       rc | MII_LAN83C185_EDPWRDOWN);
 72		if (rc < 0)
 73			return rc;
 74	}
 75
 76	return smsc_phy_ack_interrupt(phydev);
 77}
 78
 79static int smsc_phy_reset(struct phy_device *phydev)
 80{
 81	int rc = phy_read(phydev, MII_LAN83C185_SPECIAL_MODES);
 82	if (rc < 0)
 83		return rc;
 84
 85	/* If the SMSC PHY is in power down mode, then set it
 86	 * in all capable mode before using it.
 87	 */
 88	if ((rc & MII_LAN83C185_MODE_MASK) == MII_LAN83C185_MODE_POWERDOWN) {
 89		/* set "all capable" mode */
 90		rc |= MII_LAN83C185_MODE_ALL;
 91		phy_write(phydev, MII_LAN83C185_SPECIAL_MODES, rc);
 92	}
 93
 94	/* reset the phy */
 95	return genphy_soft_reset(phydev);
 96}
 97
 98static int lan911x_config_init(struct phy_device *phydev)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 99{
100	return smsc_phy_ack_interrupt(phydev);
 
 
 
 
 
 
 
 
 
 
 
 
101}
102
103/*
104 * The LAN87xx suffers from rare absence of the ENERGYON-bit when Ethernet cable
105 * plugs in while LAN87xx is in Energy Detect Power-Down mode. This leads to
106 * unstable detection of plugging in Ethernet cable.
107 * This workaround disables Energy Detect Power-Down mode and waiting for
108 * response on link pulses to detect presence of plugged Ethernet cable.
109 * The Energy Detect Power-Down mode is enabled again in the end of procedure to
110 * save approximately 220 mW of power if cable is unplugged.
 
 
111 */
112static int lan87xx_read_status(struct phy_device *phydev)
113{
114	struct smsc_phy_priv *priv = phydev->priv;
115
116	int err = genphy_read_status(phydev);
117
118	if (!phydev->link && priv->energy_enable) {
119		int i;
120
121		/* Disable EDPD to wake up PHY */
122		int rc = phy_read(phydev, MII_LAN83C185_CTRL_STATUS);
123		if (rc < 0)
124			return rc;
125
126		rc = phy_write(phydev, MII_LAN83C185_CTRL_STATUS,
127			       rc & ~MII_LAN83C185_EDPWRDOWN);
128		if (rc < 0)
129			return rc;
130
131		/* Wait max 640 ms to detect energy */
132		for (i = 0; i < 64; i++) {
133			/* Sleep to allow link test pulses to be sent */
134			msleep(10);
135			rc = phy_read(phydev, MII_LAN83C185_CTRL_STATUS);
136			if (rc < 0)
137				return rc;
138			if (rc & MII_LAN83C185_ENERGYON)
139				break;
140		}
141
142		/* Re-enable EDPD */
143		rc = phy_read(phydev, MII_LAN83C185_CTRL_STATUS);
144		if (rc < 0)
145			return rc;
146
147		rc = phy_write(phydev, MII_LAN83C185_CTRL_STATUS,
148			       rc | MII_LAN83C185_EDPWRDOWN);
149		if (rc < 0)
150			return rc;
151	}
152
153	return err;
154}
155
156static int smsc_get_sset_count(struct phy_device *phydev)
157{
158	return ARRAY_SIZE(smsc_hw_stats);
159}
160
161static void smsc_get_strings(struct phy_device *phydev, u8 *data)
162{
163	int i;
164
165	for (i = 0; i < ARRAY_SIZE(smsc_hw_stats); i++) {
166		strncpy(data + i * ETH_GSTRING_LEN,
167		       smsc_hw_stats[i].string, ETH_GSTRING_LEN);
168	}
169}
170
171#ifndef UINT64_MAX
172#define UINT64_MAX              (u64)(~((u64)0))
173#endif
174static u64 smsc_get_stat(struct phy_device *phydev, int i)
175{
176	struct smsc_hw_stat stat = smsc_hw_stats[i];
177	int val;
178	u64 ret;
179
180	val = phy_read(phydev, stat.reg);
181	if (val < 0)
182		ret = UINT64_MAX;
183	else
184		ret = val;
185
186	return ret;
187}
188
189static void smsc_get_stats(struct phy_device *phydev,
190			   struct ethtool_stats *stats, u64 *data)
191{
192	int i;
193
194	for (i = 0; i < ARRAY_SIZE(smsc_hw_stats); i++)
195		data[i] = smsc_get_stat(phydev, i);
196}
197
198static int smsc_phy_probe(struct phy_device *phydev)
199{
200	struct device *dev = &phydev->mdio.dev;
201	struct device_node *of_node = dev->of_node;
202	struct smsc_phy_priv *priv;
 
203
204	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
205	if (!priv)
206		return -ENOMEM;
207
208	priv->energy_enable = true;
209
210	if (of_property_read_bool(of_node, "smsc,disable-energy-detect"))
211		priv->energy_enable = false;
212
213	phydev->priv = priv;
214
215	return 0;
 
 
 
 
 
 
216}
217
218static struct phy_driver smsc_phy_driver[] = {
219{
220	.phy_id		= 0x0007c0a0, /* OUI=0x00800f, Model#=0x0a */
221	.phy_id_mask	= 0xfffffff0,
222	.name		= "SMSC LAN83C185",
223
224	.features	= PHY_BASIC_FEATURES,
225	.flags		= PHY_HAS_INTERRUPT,
226
227	.probe		= smsc_phy_probe,
228
229	/* basic functions */
230	.config_init	= smsc_phy_config_init,
231	.soft_reset	= smsc_phy_reset,
232
233	/* IRQ related */
234	.ack_interrupt	= smsc_phy_ack_interrupt,
235	.config_intr	= smsc_phy_config_intr,
 
236
237	.suspend	= genphy_suspend,
238	.resume		= genphy_resume,
239}, {
240	.phy_id		= 0x0007c0b0, /* OUI=0x00800f, Model#=0x0b */
241	.phy_id_mask	= 0xfffffff0,
242	.name		= "SMSC LAN8187",
243
244	.features	= PHY_BASIC_FEATURES,
245	.flags		= PHY_HAS_INTERRUPT,
246
247	.probe		= smsc_phy_probe,
248
249	/* basic functions */
250	.config_init	= smsc_phy_config_init,
251	.soft_reset	= smsc_phy_reset,
252
253	/* IRQ related */
254	.ack_interrupt	= smsc_phy_ack_interrupt,
255	.config_intr	= smsc_phy_config_intr,
 
256
257	/* Statistics */
258	.get_sset_count = smsc_get_sset_count,
259	.get_strings	= smsc_get_strings,
260	.get_stats	= smsc_get_stats,
261
262	.suspend	= genphy_suspend,
263	.resume		= genphy_resume,
264}, {
 
 
 
265	.phy_id		= 0x0007c0c0, /* OUI=0x00800f, Model#=0x0c */
266	.phy_id_mask	= 0xfffffff0,
267	.name		= "SMSC LAN8700",
268
269	.features	= PHY_BASIC_FEATURES,
270	.flags		= PHY_HAS_INTERRUPT,
271
272	.probe		= smsc_phy_probe,
273
274	/* basic functions */
275	.read_status	= lan87xx_read_status,
276	.config_init	= smsc_phy_config_init,
277	.soft_reset	= smsc_phy_reset,
 
278
279	/* IRQ related */
280	.ack_interrupt	= smsc_phy_ack_interrupt,
281	.config_intr	= smsc_phy_config_intr,
 
282
283	/* Statistics */
284	.get_sset_count = smsc_get_sset_count,
285	.get_strings	= smsc_get_strings,
286	.get_stats	= smsc_get_stats,
287
288	.suspend	= genphy_suspend,
289	.resume		= genphy_resume,
290}, {
291	.phy_id		= 0x0007c0d0, /* OUI=0x00800f, Model#=0x0d */
292	.phy_id_mask	= 0xfffffff0,
293	.name		= "SMSC LAN911x Internal PHY",
294
295	.features	= PHY_BASIC_FEATURES,
296	.flags		= PHY_HAS_INTERRUPT,
297
298	.probe		= smsc_phy_probe,
299
300	/* basic functions */
301	.config_init	= lan911x_config_init,
302
303	/* IRQ related */
304	.ack_interrupt	= smsc_phy_ack_interrupt,
305	.config_intr	= smsc_phy_config_intr,
 
306
307	.suspend	= genphy_suspend,
308	.resume		= genphy_resume,
309}, {
 
 
 
310	.phy_id		= 0x0007c0f0, /* OUI=0x00800f, Model#=0x0f */
311	.phy_id_mask	= 0xfffffff0,
312	.name		= "SMSC LAN8710/LAN8720",
313
314	.features	= PHY_BASIC_FEATURES,
315	.flags		= PHY_HAS_INTERRUPT | PHY_RST_AFTER_CLK_EN,
316
317	.probe		= smsc_phy_probe,
318
319	/* basic functions */
320	.read_status	= lan87xx_read_status,
321	.config_init	= smsc_phy_config_init,
322	.soft_reset	= smsc_phy_reset,
 
323
324	/* IRQ related */
325	.ack_interrupt	= smsc_phy_ack_interrupt,
326	.config_intr	= smsc_phy_config_intr,
 
327
328	/* Statistics */
329	.get_sset_count = smsc_get_sset_count,
330	.get_strings	= smsc_get_strings,
331	.get_stats	= smsc_get_stats,
332
333	.suspend	= genphy_suspend,
334	.resume		= genphy_resume,
335}, {
336	.phy_id		= 0x0007c110,
337	.phy_id_mask	= 0xfffffff0,
338	.name		= "SMSC LAN8740",
339
340	.features	= PHY_BASIC_FEATURES,
341	.flags		= PHY_HAS_INTERRUPT,
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
342
343	.probe		= smsc_phy_probe,
344
345	/* basic functions */
346	.read_status	= lan87xx_read_status,
347	.config_init	= smsc_phy_config_init,
348	.soft_reset	= smsc_phy_reset,
349
350	/* IRQ related */
351	.ack_interrupt	= smsc_phy_ack_interrupt,
352	.config_intr	= smsc_phy_config_intr,
 
353
354	/* Statistics */
355	.get_sset_count = smsc_get_sset_count,
356	.get_strings	= smsc_get_strings,
357	.get_stats	= smsc_get_stats,
358
359	.suspend	= genphy_suspend,
360	.resume		= genphy_resume,
361} };
362
363module_phy_driver(smsc_phy_driver);
364
365MODULE_DESCRIPTION("SMSC PHY driver");
366MODULE_AUTHOR("Herbert Valerio Riedel");
367MODULE_LICENSE("GPL");
368
369static struct mdio_device_id __maybe_unused smsc_tbl[] = {
370	{ 0x0007c0a0, 0xfffffff0 },
371	{ 0x0007c0b0, 0xfffffff0 },
372	{ 0x0007c0c0, 0xfffffff0 },
373	{ 0x0007c0d0, 0xfffffff0 },
374	{ 0x0007c0f0, 0xfffffff0 },
375	{ 0x0007c110, 0xfffffff0 },
 
376	{ }
377};
378
379MODULE_DEVICE_TABLE(mdio, smsc_tbl);
v6.2
  1// SPDX-License-Identifier: GPL-2.0+
  2/*
  3 * drivers/net/phy/smsc.c
  4 *
  5 * Driver for SMSC PHYs
  6 *
  7 * Author: Herbert Valerio Riedel
  8 *
  9 * Copyright (c) 2006 Herbert Valerio Riedel <hvr@gnu.org>
 10 *
 
 
 
 
 
 11 * Support added for SMSC LAN8187 and LAN8700 by steve.glendinning@shawell.net
 12 *
 13 */
 14
 15#include <linux/clk.h>
 16#include <linux/kernel.h>
 17#include <linux/module.h>
 18#include <linux/mii.h>
 19#include <linux/ethtool.h>
 20#include <linux/of.h>
 21#include <linux/phy.h>
 22#include <linux/netdevice.h>
 23#include <linux/smscphy.h>
 24
 25/* Vendor-specific PHY Definitions */
 26/* EDPD NLP / crossover time configuration */
 27#define PHY_EDPD_CONFIG			16
 28#define PHY_EDPD_CONFIG_EXT_CROSSOVER_	0x0001
 29
 30/* Control/Status Indication Register */
 31#define SPECIAL_CTRL_STS		27
 32#define SPECIAL_CTRL_STS_OVRRD_AMDIX_	0x8000
 33#define SPECIAL_CTRL_STS_AMDIX_ENABLE_	0x4000
 34#define SPECIAL_CTRL_STS_AMDIX_STATE_	0x2000
 35
 36struct smsc_hw_stat {
 37	const char *string;
 38	u8 reg;
 39	u8 bits;
 40};
 41
 42static struct smsc_hw_stat smsc_hw_stats[] = {
 43	{ "phy_symbol_errors", 26, 16},
 44};
 45
 46struct smsc_phy_priv {
 47	u16 intmask;
 48	bool energy_enable;
 49};
 50
 51static int smsc_phy_ack_interrupt(struct phy_device *phydev)
 52{
 53	int rc = phy_read(phydev, MII_LAN83C185_ISF);
 
 
 
 54
 55	return rc < 0 ? rc : 0;
 56}
 57
 58static int smsc_phy_config_intr(struct phy_device *phydev)
 59{
 60	struct smsc_phy_priv *priv = phydev->priv;
 61	int rc;
 62
 63	if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {
 64		rc = smsc_phy_ack_interrupt(phydev);
 65		if (rc)
 66			return rc;
 67
 68		priv->intmask = MII_LAN83C185_ISF_INT4 | MII_LAN83C185_ISF_INT6;
 69		if (priv->energy_enable)
 70			priv->intmask |= MII_LAN83C185_ISF_INT7;
 71
 72		rc = phy_write(phydev, MII_LAN83C185_IM, priv->intmask);
 73	} else {
 74		priv->intmask = 0;
 75
 76		rc = phy_write(phydev, MII_LAN83C185_IM, 0);
 77		if (rc)
 78			return rc;
 79
 80		rc = smsc_phy_ack_interrupt(phydev);
 81	}
 82
 83	return rc < 0 ? rc : 0;
 84}
 85
 86static irqreturn_t smsc_phy_handle_interrupt(struct phy_device *phydev)
 87{
 88	struct smsc_phy_priv *priv = phydev->priv;
 89	int irq_status;
 90
 91	irq_status = phy_read(phydev, MII_LAN83C185_ISF);
 92	if (irq_status < 0) {
 93		if (irq_status != -ENODEV)
 94			phy_error(phydev);
 95
 96		return IRQ_NONE;
 97	}
 98
 99	if (!(irq_status & priv->intmask))
100		return IRQ_NONE;
101
102	phy_trigger_machine(phydev);
103
104	return IRQ_HANDLED;
105}
106
107static int smsc_phy_config_init(struct phy_device *phydev)
108{
109	struct smsc_phy_priv *priv = phydev->priv;
110	int rc;
111
112	if (!priv->energy_enable || phydev->irq != PHY_POLL)
113		return 0;
114
115	rc = phy_read(phydev, MII_LAN83C185_CTRL_STATUS);
116
117	if (rc < 0)
118		return rc;
119
120	/* Enable energy detect mode for this SMSC Transceivers */
121	rc = phy_write(phydev, MII_LAN83C185_CTRL_STATUS,
122		       rc | MII_LAN83C185_EDPWRDOWN);
123	return rc;
 
 
 
 
 
124}
125
126static int smsc_phy_reset(struct phy_device *phydev)
127{
128	int rc = phy_read(phydev, MII_LAN83C185_SPECIAL_MODES);
129	if (rc < 0)
130		return rc;
131
132	/* If the SMSC PHY is in power down mode, then set it
133	 * in all capable mode before using it.
134	 */
135	if ((rc & MII_LAN83C185_MODE_MASK) == MII_LAN83C185_MODE_POWERDOWN) {
136		/* set "all capable" mode */
137		rc |= MII_LAN83C185_MODE_ALL;
138		phy_write(phydev, MII_LAN83C185_SPECIAL_MODES, rc);
139	}
140
141	/* reset the phy */
142	return genphy_soft_reset(phydev);
143}
144
145static int lan87xx_config_aneg(struct phy_device *phydev)
146{
147	int rc;
148	int val;
149
150	switch (phydev->mdix_ctrl) {
151	case ETH_TP_MDI:
152		val = SPECIAL_CTRL_STS_OVRRD_AMDIX_;
153		break;
154	case ETH_TP_MDI_X:
155		val = SPECIAL_CTRL_STS_OVRRD_AMDIX_ |
156			SPECIAL_CTRL_STS_AMDIX_STATE_;
157		break;
158	case ETH_TP_MDI_AUTO:
159		val = SPECIAL_CTRL_STS_AMDIX_ENABLE_;
160		break;
161	default:
162		return genphy_config_aneg(phydev);
163	}
164
165	rc = phy_read(phydev, SPECIAL_CTRL_STS);
166	if (rc < 0)
167		return rc;
168
169	rc &= ~(SPECIAL_CTRL_STS_OVRRD_AMDIX_ |
170		SPECIAL_CTRL_STS_AMDIX_ENABLE_ |
171		SPECIAL_CTRL_STS_AMDIX_STATE_);
172	rc |= val;
173	phy_write(phydev, SPECIAL_CTRL_STS, rc);
174
175	phydev->mdix = phydev->mdix_ctrl;
176	return genphy_config_aneg(phydev);
177}
178
179static int lan95xx_config_aneg_ext(struct phy_device *phydev)
180{
181	int rc;
182
183	if (phydev->phy_id != 0x0007c0f0) /* not (LAN9500A or LAN9505A) */
184		return lan87xx_config_aneg(phydev);
185
186	/* Extend Manual AutoMDIX timer */
187	rc = phy_read(phydev, PHY_EDPD_CONFIG);
188	if (rc < 0)
189		return rc;
190
191	rc |= PHY_EDPD_CONFIG_EXT_CROSSOVER_;
192	phy_write(phydev, PHY_EDPD_CONFIG, rc);
193	return lan87xx_config_aneg(phydev);
194}
195
196/*
197 * The LAN87xx suffers from rare absence of the ENERGYON-bit when Ethernet cable
198 * plugs in while LAN87xx is in Energy Detect Power-Down mode. This leads to
199 * unstable detection of plugging in Ethernet cable.
200 * This workaround disables Energy Detect Power-Down mode and waiting for
201 * response on link pulses to detect presence of plugged Ethernet cable.
202 * The Energy Detect Power-Down mode is enabled again in the end of procedure to
203 * save approximately 220 mW of power if cable is unplugged.
204 * The workaround is only applicable to poll mode. Energy Detect Power-Down may
205 * not be used in interrupt mode lest link change detection becomes unreliable.
206 */
207static int lan87xx_read_status(struct phy_device *phydev)
208{
209	struct smsc_phy_priv *priv = phydev->priv;
210
211	int err = genphy_read_status(phydev);
212
213	if (!phydev->link && priv->energy_enable && phydev->irq == PHY_POLL) {
 
 
214		/* Disable EDPD to wake up PHY */
215		int rc = phy_read(phydev, MII_LAN83C185_CTRL_STATUS);
216		if (rc < 0)
217			return rc;
218
219		rc = phy_write(phydev, MII_LAN83C185_CTRL_STATUS,
220			       rc & ~MII_LAN83C185_EDPWRDOWN);
221		if (rc < 0)
222			return rc;
223
224		/* Wait max 640 ms to detect energy and the timeout is not
225		 * an actual error.
226		 */
227		read_poll_timeout(phy_read, rc,
228				  rc & MII_LAN83C185_ENERGYON || rc < 0,
229				  10000, 640000, true, phydev,
230				  MII_LAN83C185_CTRL_STATUS);
231		if (rc < 0)
232			return rc;
 
233
234		/* Re-enable EDPD */
235		rc = phy_read(phydev, MII_LAN83C185_CTRL_STATUS);
236		if (rc < 0)
237			return rc;
238
239		rc = phy_write(phydev, MII_LAN83C185_CTRL_STATUS,
240			       rc | MII_LAN83C185_EDPWRDOWN);
241		if (rc < 0)
242			return rc;
243	}
244
245	return err;
246}
247
248static int smsc_get_sset_count(struct phy_device *phydev)
249{
250	return ARRAY_SIZE(smsc_hw_stats);
251}
252
253static void smsc_get_strings(struct phy_device *phydev, u8 *data)
254{
255	int i;
256
257	for (i = 0; i < ARRAY_SIZE(smsc_hw_stats); i++) {
258		strncpy(data + i * ETH_GSTRING_LEN,
259		       smsc_hw_stats[i].string, ETH_GSTRING_LEN);
260	}
261}
262
 
 
 
263static u64 smsc_get_stat(struct phy_device *phydev, int i)
264{
265	struct smsc_hw_stat stat = smsc_hw_stats[i];
266	int val;
267	u64 ret;
268
269	val = phy_read(phydev, stat.reg);
270	if (val < 0)
271		ret = U64_MAX;
272	else
273		ret = val;
274
275	return ret;
276}
277
278static void smsc_get_stats(struct phy_device *phydev,
279			   struct ethtool_stats *stats, u64 *data)
280{
281	int i;
282
283	for (i = 0; i < ARRAY_SIZE(smsc_hw_stats); i++)
284		data[i] = smsc_get_stat(phydev, i);
285}
286
287static int smsc_phy_probe(struct phy_device *phydev)
288{
289	struct device *dev = &phydev->mdio.dev;
290	struct device_node *of_node = dev->of_node;
291	struct smsc_phy_priv *priv;
292	struct clk *refclk;
293
294	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
295	if (!priv)
296		return -ENOMEM;
297
298	priv->energy_enable = true;
299
300	if (of_property_read_bool(of_node, "smsc,disable-energy-detect"))
301		priv->energy_enable = false;
302
303	phydev->priv = priv;
304
305	/* Make clk optional to keep DTB backward compatibility. */
306	refclk = devm_clk_get_optional_enabled(dev, NULL);
307	if (IS_ERR(refclk))
308		return dev_err_probe(dev, PTR_ERR(refclk),
309				     "Failed to request clock\n");
310
311	return clk_set_rate(refclk, 50 * 1000 * 1000);
312}
313
314static struct phy_driver smsc_phy_driver[] = {
315{
316	.phy_id		= 0x0007c0a0, /* OUI=0x00800f, Model#=0x0a */
317	.phy_id_mask	= 0xfffffff0,
318	.name		= "SMSC LAN83C185",
319
320	/* PHY_BASIC_FEATURES */
 
321
322	.probe		= smsc_phy_probe,
323
324	/* basic functions */
325	.config_init	= smsc_phy_config_init,
326	.soft_reset	= smsc_phy_reset,
327
328	/* IRQ related */
 
329	.config_intr	= smsc_phy_config_intr,
330	.handle_interrupt = smsc_phy_handle_interrupt,
331
332	.suspend	= genphy_suspend,
333	.resume		= genphy_resume,
334}, {
335	.phy_id		= 0x0007c0b0, /* OUI=0x00800f, Model#=0x0b */
336	.phy_id_mask	= 0xfffffff0,
337	.name		= "SMSC LAN8187",
338
339	/* PHY_BASIC_FEATURES */
 
340
341	.probe		= smsc_phy_probe,
342
343	/* basic functions */
344	.config_init	= smsc_phy_config_init,
345	.soft_reset	= smsc_phy_reset,
346
347	/* IRQ related */
 
348	.config_intr	= smsc_phy_config_intr,
349	.handle_interrupt = smsc_phy_handle_interrupt,
350
351	/* Statistics */
352	.get_sset_count = smsc_get_sset_count,
353	.get_strings	= smsc_get_strings,
354	.get_stats	= smsc_get_stats,
355
356	.suspend	= genphy_suspend,
357	.resume		= genphy_resume,
358}, {
359	/* This covers internal PHY (phy_id: 0x0007C0C3) for
360	 * LAN9500 (PID: 0x9500), LAN9514 (PID: 0xec00), LAN9505 (PID: 0x9505)
361	 */
362	.phy_id		= 0x0007c0c0, /* OUI=0x00800f, Model#=0x0c */
363	.phy_id_mask	= 0xfffffff0,
364	.name		= "SMSC LAN8700",
365
366	/* PHY_BASIC_FEATURES */
 
367
368	.probe		= smsc_phy_probe,
369
370	/* basic functions */
371	.read_status	= lan87xx_read_status,
372	.config_init	= smsc_phy_config_init,
373	.soft_reset	= smsc_phy_reset,
374	.config_aneg	= lan87xx_config_aneg,
375
376	/* IRQ related */
 
377	.config_intr	= smsc_phy_config_intr,
378	.handle_interrupt = smsc_phy_handle_interrupt,
379
380	/* Statistics */
381	.get_sset_count = smsc_get_sset_count,
382	.get_strings	= smsc_get_strings,
383	.get_stats	= smsc_get_stats,
384
385	.suspend	= genphy_suspend,
386	.resume		= genphy_resume,
387}, {
388	.phy_id		= 0x0007c0d0, /* OUI=0x00800f, Model#=0x0d */
389	.phy_id_mask	= 0xfffffff0,
390	.name		= "SMSC LAN911x Internal PHY",
391
392	/* PHY_BASIC_FEATURES */
 
393
394	.probe		= smsc_phy_probe,
395
 
 
 
396	/* IRQ related */
 
397	.config_intr	= smsc_phy_config_intr,
398	.handle_interrupt = smsc_phy_handle_interrupt,
399
400	.suspend	= genphy_suspend,
401	.resume		= genphy_resume,
402}, {
403	/* This covers internal PHY (phy_id: 0x0007C0F0) for
404	 * LAN9500A (PID: 0x9E00), LAN9505A (PID: 0x9E01)
405	 */
406	.phy_id		= 0x0007c0f0, /* OUI=0x00800f, Model#=0x0f */
407	.phy_id_mask	= 0xfffffff0,
408	.name		= "SMSC LAN8710/LAN8720",
409
410	/* PHY_BASIC_FEATURES */
 
411
412	.probe		= smsc_phy_probe,
413
414	/* basic functions */
415	.read_status	= lan87xx_read_status,
416	.config_init	= smsc_phy_config_init,
417	.soft_reset	= smsc_phy_reset,
418	.config_aneg	= lan95xx_config_aneg_ext,
419
420	/* IRQ related */
 
421	.config_intr	= smsc_phy_config_intr,
422	.handle_interrupt = smsc_phy_handle_interrupt,
423
424	/* Statistics */
425	.get_sset_count = smsc_get_sset_count,
426	.get_strings	= smsc_get_strings,
427	.get_stats	= smsc_get_stats,
428
429	.suspend	= genphy_suspend,
430	.resume		= genphy_resume,
431}, {
432	.phy_id		= 0x0007c110,
433	.phy_id_mask	= 0xfffffff0,
434	.name		= "SMSC LAN8740",
435
436	/* PHY_BASIC_FEATURES */
437	.flags		= PHY_RST_AFTER_CLK_EN,
438
439	.probe		= smsc_phy_probe,
440
441	/* basic functions */
442	.read_status	= lan87xx_read_status,
443	.config_init	= smsc_phy_config_init,
444	.soft_reset	= smsc_phy_reset,
445
446	/* IRQ related */
447	.config_intr	= smsc_phy_config_intr,
448	.handle_interrupt = smsc_phy_handle_interrupt,
449
450	/* Statistics */
451	.get_sset_count = smsc_get_sset_count,
452	.get_strings	= smsc_get_strings,
453	.get_stats	= smsc_get_stats,
454
455	.suspend	= genphy_suspend,
456	.resume		= genphy_resume,
457}, {
458	.phy_id		= 0x0007c130,	/* 0x0007c130 and 0x0007c131 */
459	/* This mask (0xfffffff2) is to differentiate from
460	 * LAN88xx (phy_id 0x0007c132)
461	 * and allows future phy_id revisions.
462	 */
463	.phy_id_mask	= 0xfffffff2,
464	.name		= "Microchip LAN8742",
465
466	/* PHY_BASIC_FEATURES */
467	.flags		= PHY_RST_AFTER_CLK_EN,
468
469	.probe		= smsc_phy_probe,
470
471	/* basic functions */
472	.read_status	= lan87xx_read_status,
473	.config_init	= smsc_phy_config_init,
474	.soft_reset	= smsc_phy_reset,
475
476	/* IRQ related */
 
477	.config_intr	= smsc_phy_config_intr,
478	.handle_interrupt = smsc_phy_handle_interrupt,
479
480	/* Statistics */
481	.get_sset_count = smsc_get_sset_count,
482	.get_strings	= smsc_get_strings,
483	.get_stats	= smsc_get_stats,
484
485	.suspend	= genphy_suspend,
486	.resume		= genphy_resume,
487} };
488
489module_phy_driver(smsc_phy_driver);
490
491MODULE_DESCRIPTION("SMSC PHY driver");
492MODULE_AUTHOR("Herbert Valerio Riedel");
493MODULE_LICENSE("GPL");
494
495static struct mdio_device_id __maybe_unused smsc_tbl[] = {
496	{ 0x0007c0a0, 0xfffffff0 },
497	{ 0x0007c0b0, 0xfffffff0 },
498	{ 0x0007c0c0, 0xfffffff0 },
499	{ 0x0007c0d0, 0xfffffff0 },
500	{ 0x0007c0f0, 0xfffffff0 },
501	{ 0x0007c110, 0xfffffff0 },
502	{ 0x0007c130, 0xfffffff2 },
503	{ }
504};
505
506MODULE_DEVICE_TABLE(mdio, smsc_tbl);