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v3.1
 
  1/*
  2 * Driver for Vitesse PHYs
  3 *
  4 * Author: Kriston Carson
  5 *
  6 * Copyright (c) 2005 Freescale Semiconductor, Inc.
  7 *
  8 * This program is free software; you can redistribute  it and/or modify it
  9 * under  the terms of  the GNU General  Public License as published by the
 10 * Free Software Foundation;  either version 2 of the  License, or (at your
 11 * option) any later version.
 12 *
 13 */
 14
 15#include <linux/kernel.h>
 16#include <linux/module.h>
 17#include <linux/mii.h>
 18#include <linux/ethtool.h>
 19#include <linux/phy.h>
 20
 
 
 
 
 
 21/* Vitesse Extended Control Register 1 */
 22#define MII_VSC8244_EXT_CON1           0x17
 23#define MII_VSC8244_EXTCON1_INIT       0x0000
 24#define MII_VSC8244_EXTCON1_TX_SKEW_MASK	0x0c00
 25#define MII_VSC8244_EXTCON1_RX_SKEW_MASK	0x0300
 26#define MII_VSC8244_EXTCON1_TX_SKEW	0x0800
 27#define MII_VSC8244_EXTCON1_RX_SKEW	0x0200
 28
 29/* Vitesse Interrupt Mask Register */
 30#define MII_VSC8244_IMASK		0x19
 31#define MII_VSC8244_IMASK_IEN		0x8000
 32#define MII_VSC8244_IMASK_SPEED		0x4000
 33#define MII_VSC8244_IMASK_LINK		0x2000
 34#define MII_VSC8244_IMASK_DUPLEX	0x1000
 35#define MII_VSC8244_IMASK_MASK		0xf000
 36
 37#define MII_VSC8221_IMASK_MASK		0xa000
 38
 39/* Vitesse Interrupt Status Register */
 40#define MII_VSC8244_ISTAT		0x1a
 41#define MII_VSC8244_ISTAT_STATUS	0x8000
 42#define MII_VSC8244_ISTAT_SPEED		0x4000
 43#define MII_VSC8244_ISTAT_LINK		0x2000
 44#define MII_VSC8244_ISTAT_DUPLEX	0x1000
 45
 46/* Vitesse Auxiliary Control/Status Register */
 47#define MII_VSC8244_AUX_CONSTAT        	0x1c
 48#define MII_VSC8244_AUXCONSTAT_INIT    	0x0000
 49#define MII_VSC8244_AUXCONSTAT_DUPLEX  	0x0020
 50#define MII_VSC8244_AUXCONSTAT_SPEED   	0x0018
 51#define MII_VSC8244_AUXCONSTAT_GBIT    	0x0010
 52#define MII_VSC8244_AUXCONSTAT_100     	0x0008
 53
 54#define MII_VSC8221_AUXCONSTAT_INIT	0x0004 /* need to set this bit? */
 55#define MII_VSC8221_AUXCONSTAT_RESERVED	0x0004
 56
 
 
 
 
 
 
 
 
 57#define PHY_ID_VSC8244			0x000fc6c0
 
 
 
 
 
 
 
 58#define PHY_ID_VSC8221			0x000fc550
 
 59
 60MODULE_DESCRIPTION("Vitesse PHY driver");
 61MODULE_AUTHOR("Kriston Carson");
 62MODULE_LICENSE("GPL");
 63
 64static int vsc824x_config_init(struct phy_device *phydev)
 65{
 
 66	int extcon;
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 67	int err;
 68
 69	err = phy_write(phydev, MII_VSC8244_AUX_CONSTAT,
 70			MII_VSC8244_AUXCONSTAT_INIT);
 71	if (err < 0)
 72		return err;
 73
 74	extcon = phy_read(phydev, MII_VSC8244_EXT_CON1);
 
 75
 76	if (extcon < 0)
 77		return err;
 78
 79	extcon &= ~(MII_VSC8244_EXTCON1_TX_SKEW_MASK |
 80			MII_VSC8244_EXTCON1_RX_SKEW_MASK);
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 81
 82	if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID)
 83		extcon |= (MII_VSC8244_EXTCON1_TX_SKEW |
 84				MII_VSC8244_EXTCON1_RX_SKEW);
 85
 86	err = phy_write(phydev, MII_VSC8244_EXT_CON1, extcon);
 
 87
 88	return err;
 89}
 90
 91static int vsc824x_ack_interrupt(struct phy_device *phydev)
 92{
 93	int err = 0;
 94	
 95	/*
 96	 * Don't bother to ACK the interrupts if interrupts
 97	 * are disabled.  The 824x cannot clear the interrupts
 98	 * if they are disabled.
 99	 */
100	if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
101		err = phy_read(phydev, MII_VSC8244_ISTAT);
102
103	return (err < 0) ? err : 0;
104}
105
106static int vsc82xx_config_intr(struct phy_device *phydev)
107{
108	int err;
109
110	if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
111		err = phy_write(phydev, MII_VSC8244_IMASK,
112			phydev->drv->phy_id == PHY_ID_VSC8244 ?
 
 
 
113				MII_VSC8244_IMASK_MASK :
114				MII_VSC8221_IMASK_MASK);
115	else {
116		/*
117		 * The Vitesse PHY cannot clear the interrupt
118		 * once it has disabled them, so we clear them first
119		 */
120		err = phy_read(phydev, MII_VSC8244_ISTAT);
121
122		if (err < 0)
123			return err;
124
125		err = phy_write(phydev, MII_VSC8244_IMASK, 0);
126	}
127
128	return err;
129}
130
131/* Vitesse 824x */
132static struct phy_driver vsc8244_driver = {
133	.phy_id		= PHY_ID_VSC8244,
134	.name		= "Vitesse VSC8244",
135	.phy_id_mask	= 0x000fffc0,
136	.features	= PHY_GBIT_FEATURES,
137	.flags		= PHY_HAS_INTERRUPT,
138	.config_init	= &vsc824x_config_init,
139	.config_aneg	= &genphy_config_aneg,
140	.read_status	= &genphy_read_status,
141	.ack_interrupt	= &vsc824x_ack_interrupt,
142	.config_intr	= &vsc82xx_config_intr,
143	.driver 	= { .owner = THIS_MODULE,},
144};
145
146static int vsc8221_config_init(struct phy_device *phydev)
147{
148	int err;
149
150	err = phy_write(phydev, MII_VSC8244_AUX_CONSTAT,
151			MII_VSC8221_AUXCONSTAT_INIT);
152	return err;
153
154	/* Perhaps we should set EXT_CON1 based on the interface?
155	   Options are 802.3Z SerDes or SGMII */
 
156}
157
158/* Vitesse 8221 */
159static struct phy_driver vsc8221_driver = {
160	.phy_id		= PHY_ID_VSC8221,
161	.phy_id_mask	= 0x000ffff0,
162	.name		= "Vitesse VSC8221",
163	.features	= PHY_GBIT_FEATURES,
164	.flags		= PHY_HAS_INTERRUPT,
165	.config_init	= &vsc8221_config_init,
166	.config_aneg	= &genphy_config_aneg,
167	.read_status	= &genphy_read_status,
168	.ack_interrupt	= &vsc824x_ack_interrupt,
169	.config_intr	= &vsc82xx_config_intr,
170	.driver 	= { .owner = THIS_MODULE,},
171};
172
173static int __init vsc82xx_init(void)
174{
175	int err;
176
177	err = phy_driver_register(&vsc8244_driver);
178	if (err < 0)
179		return err;
180	err = phy_driver_register(&vsc8221_driver);
181	if (err < 0)
182		phy_driver_unregister(&vsc8244_driver);
183	return err;
 
 
 
 
 
 
 
 
 
 
 
184}
185
186static void __exit vsc82xx_exit(void)
 
 
 
 
 
 
 
 
187{
188	phy_driver_unregister(&vsc8244_driver);
189	phy_driver_unregister(&vsc8221_driver);
 
 
 
 
 
 
 
 
 
 
 
 
 
190}
191
192module_init(vsc82xx_init);
193module_exit(vsc82xx_exit);
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
194
195static struct mdio_device_id __maybe_unused vitesse_tbl[] = {
 
196	{ PHY_ID_VSC8244, 0x000fffc0 },
 
 
 
 
 
 
197	{ PHY_ID_VSC8221, 0x000ffff0 },
 
198	{ }
199};
200
201MODULE_DEVICE_TABLE(mdio, vitesse_tbl);
v5.9
  1// SPDX-License-Identifier: GPL-2.0+
  2/*
  3 * Driver for Vitesse PHYs
  4 *
  5 * Author: Kriston Carson
 
 
 
 
 
 
 
 
  6 */
  7
  8#include <linux/kernel.h>
  9#include <linux/module.h>
 10#include <linux/mii.h>
 11#include <linux/ethtool.h>
 12#include <linux/phy.h>
 13
 14/* Vitesse Extended Page Magic Register(s) */
 15#define MII_VSC82X4_EXT_PAGE_16E	0x10
 16#define MII_VSC82X4_EXT_PAGE_17E	0x11
 17#define MII_VSC82X4_EXT_PAGE_18E	0x12
 18
 19/* Vitesse Extended Control Register 1 */
 20#define MII_VSC8244_EXT_CON1           0x17
 21#define MII_VSC8244_EXTCON1_INIT       0x0000
 22#define MII_VSC8244_EXTCON1_TX_SKEW_MASK	0x0c00
 23#define MII_VSC8244_EXTCON1_RX_SKEW_MASK	0x0300
 24#define MII_VSC8244_EXTCON1_TX_SKEW	0x0800
 25#define MII_VSC8244_EXTCON1_RX_SKEW	0x0200
 26
 27/* Vitesse Interrupt Mask Register */
 28#define MII_VSC8244_IMASK		0x19
 29#define MII_VSC8244_IMASK_IEN		0x8000
 30#define MII_VSC8244_IMASK_SPEED		0x4000
 31#define MII_VSC8244_IMASK_LINK		0x2000
 32#define MII_VSC8244_IMASK_DUPLEX	0x1000
 33#define MII_VSC8244_IMASK_MASK		0xf000
 34
 35#define MII_VSC8221_IMASK_MASK		0xa000
 36
 37/* Vitesse Interrupt Status Register */
 38#define MII_VSC8244_ISTAT		0x1a
 39#define MII_VSC8244_ISTAT_STATUS	0x8000
 40#define MII_VSC8244_ISTAT_SPEED		0x4000
 41#define MII_VSC8244_ISTAT_LINK		0x2000
 42#define MII_VSC8244_ISTAT_DUPLEX	0x1000
 43
 44/* Vitesse Auxiliary Control/Status Register */
 45#define MII_VSC8244_AUX_CONSTAT		0x1c
 46#define MII_VSC8244_AUXCONSTAT_INIT	0x0000
 47#define MII_VSC8244_AUXCONSTAT_DUPLEX	0x0020
 48#define MII_VSC8244_AUXCONSTAT_SPEED	0x0018
 49#define MII_VSC8244_AUXCONSTAT_GBIT	0x0010
 50#define MII_VSC8244_AUXCONSTAT_100	0x0008
 51
 52#define MII_VSC8221_AUXCONSTAT_INIT	0x0004 /* need to set this bit? */
 53#define MII_VSC8221_AUXCONSTAT_RESERVED	0x0004
 54
 55/* Vitesse Extended Page Access Register */
 56#define MII_VSC82X4_EXT_PAGE_ACCESS	0x1f
 57
 58/* Vitesse VSC8601 Extended PHY Control Register 1 */
 59#define MII_VSC8601_EPHY_CTL		0x17
 60#define MII_VSC8601_EPHY_CTL_RGMII_SKEW	(1 << 8)
 61
 62#define PHY_ID_VSC8234			0x000fc620
 63#define PHY_ID_VSC8244			0x000fc6c0
 64#define PHY_ID_VSC8572			0x000704d0
 65#define PHY_ID_VSC8601			0x00070420
 66#define PHY_ID_VSC7385			0x00070450
 67#define PHY_ID_VSC7388			0x00070480
 68#define PHY_ID_VSC7395			0x00070550
 69#define PHY_ID_VSC7398			0x00070580
 70#define PHY_ID_VSC8662			0x00070660
 71#define PHY_ID_VSC8221			0x000fc550
 72#define PHY_ID_VSC8211			0x000fc4b0
 73
 74MODULE_DESCRIPTION("Vitesse PHY driver");
 75MODULE_AUTHOR("Kriston Carson");
 76MODULE_LICENSE("GPL");
 77
 78static int vsc824x_add_skew(struct phy_device *phydev)
 79{
 80	int err;
 81	int extcon;
 82
 83	extcon = phy_read(phydev, MII_VSC8244_EXT_CON1);
 84
 85	if (extcon < 0)
 86		return extcon;
 87
 88	extcon &= ~(MII_VSC8244_EXTCON1_TX_SKEW_MASK |
 89			MII_VSC8244_EXTCON1_RX_SKEW_MASK);
 90
 91	extcon |= (MII_VSC8244_EXTCON1_TX_SKEW |
 92			MII_VSC8244_EXTCON1_RX_SKEW);
 93
 94	err = phy_write(phydev, MII_VSC8244_EXT_CON1, extcon);
 95
 96	return err;
 97}
 98
 99static int vsc824x_config_init(struct phy_device *phydev)
100{
101	int err;
102
103	err = phy_write(phydev, MII_VSC8244_AUX_CONSTAT,
104			MII_VSC8244_AUXCONSTAT_INIT);
105	if (err < 0)
106		return err;
107
108	if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID)
109		err = vsc824x_add_skew(phydev);
110
111	return err;
112}
113
114#define VSC73XX_EXT_PAGE_ACCESS 0x1f
115
116static int vsc73xx_read_page(struct phy_device *phydev)
117{
118	return __phy_read(phydev, VSC73XX_EXT_PAGE_ACCESS);
119}
120
121static int vsc73xx_write_page(struct phy_device *phydev, int page)
122{
123	return __phy_write(phydev, VSC73XX_EXT_PAGE_ACCESS, page);
124}
125
126static void vsc73xx_config_init(struct phy_device *phydev)
127{
128	/* Receiver init */
129	phy_write(phydev, 0x1f, 0x2a30);
130	phy_modify(phydev, 0x0c, 0x0300, 0x0200);
131	phy_write(phydev, 0x1f, 0x0000);
132
133	/* Config LEDs 0x61 */
134	phy_modify(phydev, MII_TPISTATUS, 0xff00, 0x0061);
135}
136
137static int vsc738x_config_init(struct phy_device *phydev)
138{
139	u16 rev;
140	/* This magic sequence appear in the application note
141	 * "VSC7385/7388 PHY Configuration".
142	 *
143	 * Maybe one day we will get to know what it all means.
144	 */
145	phy_write(phydev, 0x1f, 0x2a30);
146	phy_modify(phydev, 0x08, 0x0200, 0x0200);
147	phy_write(phydev, 0x1f, 0x52b5);
148	phy_write(phydev, 0x10, 0xb68a);
149	phy_modify(phydev, 0x12, 0xff07, 0x0003);
150	phy_modify(phydev, 0x11, 0x00ff, 0x00a2);
151	phy_write(phydev, 0x10, 0x968a);
152	phy_write(phydev, 0x1f, 0x2a30);
153	phy_modify(phydev, 0x08, 0x0200, 0x0000);
154	phy_write(phydev, 0x1f, 0x0000);
155
156	/* Read revision */
157	rev = phy_read(phydev, MII_PHYSID2);
158	rev &= 0x0f;
159
160	/* Special quirk for revision 0 */
161	if (rev == 0) {
162		phy_write(phydev, 0x1f, 0x2a30);
163		phy_modify(phydev, 0x08, 0x0200, 0x0200);
164		phy_write(phydev, 0x1f, 0x52b5);
165		phy_write(phydev, 0x12, 0x0000);
166		phy_write(phydev, 0x11, 0x0689);
167		phy_write(phydev, 0x10, 0x8f92);
168		phy_write(phydev, 0x1f, 0x52b5);
169		phy_write(phydev, 0x12, 0x0000);
170		phy_write(phydev, 0x11, 0x0e35);
171		phy_write(phydev, 0x10, 0x9786);
172		phy_write(phydev, 0x1f, 0x2a30);
173		phy_modify(phydev, 0x08, 0x0200, 0x0000);
174		phy_write(phydev, 0x17, 0xff80);
175		phy_write(phydev, 0x17, 0x0000);
176	}
177
178	phy_write(phydev, 0x1f, 0x0000);
179	phy_write(phydev, 0x12, 0x0048);
180
181	if (rev == 0) {
182		phy_write(phydev, 0x1f, 0x2a30);
183		phy_write(phydev, 0x14, 0x6600);
184		phy_write(phydev, 0x1f, 0x0000);
185		phy_write(phydev, 0x18, 0xa24e);
186	} else {
187		phy_write(phydev, 0x1f, 0x2a30);
188		phy_modify(phydev, 0x16, 0x0fc0, 0x0240);
189		phy_modify(phydev, 0x14, 0x6000, 0x4000);
190		/* bits 14-15 in extended register 0x14 controls DACG amplitude
191		 * 6 = -8%, 2 is hardware default
192		 */
193		phy_write(phydev, 0x1f, 0x0001);
194		phy_modify(phydev, 0x14, 0xe000, 0x6000);
195		phy_write(phydev, 0x1f, 0x0000);
196	}
197
198	vsc73xx_config_init(phydev);
199
200	return 0;
201}
202
203static int vsc739x_config_init(struct phy_device *phydev)
204{
205	/* This magic sequence appears in the VSC7395 SparX-G5e application
206	 * note "VSC7395/VSC7398 PHY Configuration"
207	 *
208	 * Maybe one day we will get to know what it all means.
209	 */
210	phy_write(phydev, 0x1f, 0x2a30);
211	phy_modify(phydev, 0x08, 0x0200, 0x0200);
212	phy_write(phydev, 0x1f, 0x52b5);
213	phy_write(phydev, 0x10, 0xb68a);
214	phy_modify(phydev, 0x12, 0xff07, 0x0003);
215	phy_modify(phydev, 0x11, 0x00ff, 0x00a2);
216	phy_write(phydev, 0x10, 0x968a);
217	phy_write(phydev, 0x1f, 0x2a30);
218	phy_modify(phydev, 0x08, 0x0200, 0x0000);
219	phy_write(phydev, 0x1f, 0x0000);
220
221	phy_write(phydev, 0x1f, 0x0000);
222	phy_write(phydev, 0x12, 0x0048);
223	phy_write(phydev, 0x1f, 0x2a30);
224	phy_modify(phydev, 0x16, 0x0fc0, 0x0240);
225	phy_modify(phydev, 0x14, 0x6000, 0x4000);
226	phy_write(phydev, 0x1f, 0x0001);
227	phy_modify(phydev, 0x14, 0xe000, 0x6000);
228	phy_write(phydev, 0x1f, 0x0000);
229
230	vsc73xx_config_init(phydev);
231
232	return 0;
233}
234
235static int vsc73xx_config_aneg(struct phy_device *phydev)
236{
237	/* The VSC73xx switches does not like to be instructed to
238	 * do autonegotiation in any way, it prefers that you just go
239	 * with the power-on/reset defaults. Writing some registers will
240	 * just make autonegotiation permanently fail.
241	 */
242	return 0;
243}
244
245/* This adds a skew for both TX and RX clocks, so the skew should only be
246 * applied to "rgmii-id" interfaces. It may not work as expected
247 * on "rgmii-txid", "rgmii-rxid" or "rgmii" interfaces. */
248static int vsc8601_add_skew(struct phy_device *phydev)
249{
250	int ret;
251
252	ret = phy_read(phydev, MII_VSC8601_EPHY_CTL);
253	if (ret < 0)
254		return ret;
255
256	ret |= MII_VSC8601_EPHY_CTL_RGMII_SKEW;
257	return phy_write(phydev, MII_VSC8601_EPHY_CTL, ret);
258}
259
260static int vsc8601_config_init(struct phy_device *phydev)
261{
262	int ret = 0;
263
264	if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID)
265		ret = vsc8601_add_skew(phydev);
 
266
267	if (ret < 0)
268		return ret;
269
270	return 0;
271}
272
273static int vsc824x_ack_interrupt(struct phy_device *phydev)
274{
275	int err = 0;
276
277	/* Don't bother to ACK the interrupts if interrupts
 
278	 * are disabled.  The 824x cannot clear the interrupts
279	 * if they are disabled.
280	 */
281	if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
282		err = phy_read(phydev, MII_VSC8244_ISTAT);
283
284	return (err < 0) ? err : 0;
285}
286
287static int vsc82xx_config_intr(struct phy_device *phydev)
288{
289	int err;
290
291	if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
292		err = phy_write(phydev, MII_VSC8244_IMASK,
293			(phydev->drv->phy_id == PHY_ID_VSC8234 ||
294			 phydev->drv->phy_id == PHY_ID_VSC8244 ||
295			 phydev->drv->phy_id == PHY_ID_VSC8572 ||
296			 phydev->drv->phy_id == PHY_ID_VSC8601) ?
297				MII_VSC8244_IMASK_MASK :
298				MII_VSC8221_IMASK_MASK);
299	else {
300		/* The Vitesse PHY cannot clear the interrupt
 
301		 * once it has disabled them, so we clear them first
302		 */
303		err = phy_read(phydev, MII_VSC8244_ISTAT);
304
305		if (err < 0)
306			return err;
307
308		err = phy_write(phydev, MII_VSC8244_IMASK, 0);
309	}
310
311	return err;
312}
313
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
314static int vsc8221_config_init(struct phy_device *phydev)
315{
316	int err;
317
318	err = phy_write(phydev, MII_VSC8244_AUX_CONSTAT,
319			MII_VSC8221_AUXCONSTAT_INIT);
320	return err;
321
322	/* Perhaps we should set EXT_CON1 based on the interface?
323	 * Options are 802.3Z SerDes or SGMII
324	 */
325}
326
327/* vsc82x4_config_autocross_enable - Enable auto MDI/MDI-X for forced links
328 * @phydev: target phy_device struct
329 *
330 * Enable auto MDI/MDI-X when in 10/100 forced link speeds by writing
331 * special values in the VSC8234/VSC8244 extended reserved registers
332 */
333static int vsc82x4_config_autocross_enable(struct phy_device *phydev)
 
 
 
 
 
 
 
 
 
334{
335	int ret;
336
337	if (phydev->autoneg == AUTONEG_ENABLE || phydev->speed > SPEED_100)
338		return 0;
339
340	/* map extended registers set 0x10 - 0x1e */
341	ret = phy_write(phydev, MII_VSC82X4_EXT_PAGE_ACCESS, 0x52b5);
342	if (ret >= 0)
343		ret = phy_write(phydev, MII_VSC82X4_EXT_PAGE_18E, 0x0012);
344	if (ret >= 0)
345		ret = phy_write(phydev, MII_VSC82X4_EXT_PAGE_17E, 0x2803);
346	if (ret >= 0)
347		ret = phy_write(phydev, MII_VSC82X4_EXT_PAGE_16E, 0x87fa);
348	/* map standard registers set 0x10 - 0x1e */
349	if (ret >= 0)
350		ret = phy_write(phydev, MII_VSC82X4_EXT_PAGE_ACCESS, 0x0000);
351	else
352		phy_write(phydev, MII_VSC82X4_EXT_PAGE_ACCESS, 0x0000);
353
354	return ret;
355}
356
357/* vsc82x4_config_aneg - restart auto-negotiation or write BMCR
358 * @phydev: target phy_device struct
359 *
360 * Description: If auto-negotiation is enabled, we configure the
361 *   advertising, and then restart auto-negotiation.  If it is not
362 *   enabled, then we write the BMCR and also start the auto
363 *   MDI/MDI-X feature
364 */
365static int vsc82x4_config_aneg(struct phy_device *phydev)
366{
367	int ret;
368
369	/* Enable auto MDI/MDI-X when in 10/100 forced link speeds by
370	 * writing special values in the VSC8234 extended reserved registers
371	 */
372	if (phydev->autoneg != AUTONEG_ENABLE && phydev->speed <= SPEED_100) {
373		ret = genphy_setup_forced(phydev);
374
375		if (ret < 0) /* error */
376			return ret;
377
378		return vsc82x4_config_autocross_enable(phydev);
379	}
380
381	return genphy_config_aneg(phydev);
382}
383
384/* Vitesse 82xx */
385static struct phy_driver vsc82xx_driver[] = {
386{
387	.phy_id         = PHY_ID_VSC8234,
388	.name           = "Vitesse VSC8234",
389	.phy_id_mask    = 0x000ffff0,
390	/* PHY_GBIT_FEATURES */
391	.config_init    = &vsc824x_config_init,
392	.config_aneg    = &vsc82x4_config_aneg,
393	.ack_interrupt  = &vsc824x_ack_interrupt,
394	.config_intr    = &vsc82xx_config_intr,
395}, {
396	.phy_id		= PHY_ID_VSC8244,
397	.name		= "Vitesse VSC8244",
398	.phy_id_mask	= 0x000fffc0,
399	/* PHY_GBIT_FEATURES */
400	.config_init	= &vsc824x_config_init,
401	.config_aneg	= &vsc82x4_config_aneg,
402	.ack_interrupt	= &vsc824x_ack_interrupt,
403	.config_intr	= &vsc82xx_config_intr,
404}, {
405	.phy_id         = PHY_ID_VSC8572,
406	.name           = "Vitesse VSC8572",
407	.phy_id_mask    = 0x000ffff0,
408	/* PHY_GBIT_FEATURES */
409	.config_init    = &vsc824x_config_init,
410	.config_aneg    = &vsc82x4_config_aneg,
411	.ack_interrupt  = &vsc824x_ack_interrupt,
412	.config_intr    = &vsc82xx_config_intr,
413}, {
414	.phy_id         = PHY_ID_VSC8601,
415	.name           = "Vitesse VSC8601",
416	.phy_id_mask    = 0x000ffff0,
417	/* PHY_GBIT_FEATURES */
418	.config_init    = &vsc8601_config_init,
419	.ack_interrupt  = &vsc824x_ack_interrupt,
420	.config_intr    = &vsc82xx_config_intr,
421}, {
422	.phy_id         = PHY_ID_VSC7385,
423	.name           = "Vitesse VSC7385",
424	.phy_id_mask    = 0x000ffff0,
425	/* PHY_GBIT_FEATURES */
426	.config_init    = vsc738x_config_init,
427	.config_aneg    = vsc73xx_config_aneg,
428	.read_page      = vsc73xx_read_page,
429	.write_page     = vsc73xx_write_page,
430}, {
431	.phy_id         = PHY_ID_VSC7388,
432	.name           = "Vitesse VSC7388",
433	.phy_id_mask    = 0x000ffff0,
434	/* PHY_GBIT_FEATURES */
435	.config_init    = vsc738x_config_init,
436	.config_aneg    = vsc73xx_config_aneg,
437	.read_page      = vsc73xx_read_page,
438	.write_page     = vsc73xx_write_page,
439}, {
440	.phy_id         = PHY_ID_VSC7395,
441	.name           = "Vitesse VSC7395",
442	.phy_id_mask    = 0x000ffff0,
443	/* PHY_GBIT_FEATURES */
444	.config_init    = vsc739x_config_init,
445	.config_aneg    = vsc73xx_config_aneg,
446	.read_page      = vsc73xx_read_page,
447	.write_page     = vsc73xx_write_page,
448}, {
449	.phy_id         = PHY_ID_VSC7398,
450	.name           = "Vitesse VSC7398",
451	.phy_id_mask    = 0x000ffff0,
452	/* PHY_GBIT_FEATURES */
453	.config_init    = vsc739x_config_init,
454	.config_aneg    = vsc73xx_config_aneg,
455	.read_page      = vsc73xx_read_page,
456	.write_page     = vsc73xx_write_page,
457}, {
458	.phy_id         = PHY_ID_VSC8662,
459	.name           = "Vitesse VSC8662",
460	.phy_id_mask    = 0x000ffff0,
461	/* PHY_GBIT_FEATURES */
462	.config_init    = &vsc824x_config_init,
463	.config_aneg    = &vsc82x4_config_aneg,
464	.ack_interrupt  = &vsc824x_ack_interrupt,
465	.config_intr    = &vsc82xx_config_intr,
466}, {
467	/* Vitesse 8221 */
468	.phy_id		= PHY_ID_VSC8221,
469	.phy_id_mask	= 0x000ffff0,
470	.name		= "Vitesse VSC8221",
471	/* PHY_GBIT_FEATURES */
472	.config_init	= &vsc8221_config_init,
473	.ack_interrupt	= &vsc824x_ack_interrupt,
474	.config_intr	= &vsc82xx_config_intr,
475}, {
476	/* Vitesse 8211 */
477	.phy_id		= PHY_ID_VSC8211,
478	.phy_id_mask	= 0x000ffff0,
479	.name		= "Vitesse VSC8211",
480	/* PHY_GBIT_FEATURES */
481	.config_init	= &vsc8221_config_init,
482	.ack_interrupt	= &vsc824x_ack_interrupt,
483	.config_intr	= &vsc82xx_config_intr,
484} };
485
486module_phy_driver(vsc82xx_driver);
487
488static struct mdio_device_id __maybe_unused vitesse_tbl[] = {
489	{ PHY_ID_VSC8234, 0x000ffff0 },
490	{ PHY_ID_VSC8244, 0x000fffc0 },
491	{ PHY_ID_VSC8572, 0x000ffff0 },
492	{ PHY_ID_VSC7385, 0x000ffff0 },
493	{ PHY_ID_VSC7388, 0x000ffff0 },
494	{ PHY_ID_VSC7395, 0x000ffff0 },
495	{ PHY_ID_VSC7398, 0x000ffff0 },
496	{ PHY_ID_VSC8662, 0x000ffff0 },
497	{ PHY_ID_VSC8221, 0x000ffff0 },
498	{ PHY_ID_VSC8211, 0x000ffff0 },
499	{ }
500};
501
502MODULE_DEVICE_TABLE(mdio, vitesse_tbl);