Loading...
1/*
2 * drivers/net/phy/lxt.c
3 *
4 * Driver for Intel LXT PHYs
5 *
6 * Author: Andy Fleming
7 *
8 * Copyright (c) 2004 Freescale Semiconductor, Inc.
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 */
16#include <linux/kernel.h>
17#include <linux/string.h>
18#include <linux/errno.h>
19#include <linux/unistd.h>
20#include <linux/interrupt.h>
21#include <linux/init.h>
22#include <linux/delay.h>
23#include <linux/netdevice.h>
24#include <linux/etherdevice.h>
25#include <linux/skbuff.h>
26#include <linux/spinlock.h>
27#include <linux/mm.h>
28#include <linux/module.h>
29#include <linux/mii.h>
30#include <linux/ethtool.h>
31#include <linux/phy.h>
32
33#include <asm/io.h>
34#include <asm/irq.h>
35#include <asm/uaccess.h>
36
37/* The Level one LXT970 is used by many boards */
38
39#define MII_LXT970_IER 17 /* Interrupt Enable Register */
40
41#define MII_LXT970_IER_IEN 0x0002
42
43#define MII_LXT970_ISR 18 /* Interrupt Status Register */
44
45#define MII_LXT970_CONFIG 19 /* Configuration Register */
46
47/* ------------------------------------------------------------------------- */
48/* The Level one LXT971 is used on some of my custom boards */
49
50/* register definitions for the 971 */
51#define MII_LXT971_IER 18 /* Interrupt Enable Register */
52#define MII_LXT971_IER_IEN 0x00f2
53
54#define MII_LXT971_ISR 19 /* Interrupt Status Register */
55
56/* register definitions for the 973 */
57#define MII_LXT973_PCR 16 /* Port Configuration Register */
58#define PCR_FIBER_SELECT 1
59
60MODULE_DESCRIPTION("Intel LXT PHY driver");
61MODULE_AUTHOR("Andy Fleming");
62MODULE_LICENSE("GPL");
63
64static int lxt970_ack_interrupt(struct phy_device *phydev)
65{
66 int err;
67
68 err = phy_read(phydev, MII_BMSR);
69
70 if (err < 0)
71 return err;
72
73 err = phy_read(phydev, MII_LXT970_ISR);
74
75 if (err < 0)
76 return err;
77
78 return 0;
79}
80
81static int lxt970_config_intr(struct phy_device *phydev)
82{
83 int err;
84
85 if(phydev->interrupts == PHY_INTERRUPT_ENABLED)
86 err = phy_write(phydev, MII_LXT970_IER, MII_LXT970_IER_IEN);
87 else
88 err = phy_write(phydev, MII_LXT970_IER, 0);
89
90 return err;
91}
92
93static int lxt970_config_init(struct phy_device *phydev)
94{
95 int err;
96
97 err = phy_write(phydev, MII_LXT970_CONFIG, 0);
98
99 return err;
100}
101
102
103static int lxt971_ack_interrupt(struct phy_device *phydev)
104{
105 int err = phy_read(phydev, MII_LXT971_ISR);
106
107 if (err < 0)
108 return err;
109
110 return 0;
111}
112
113static int lxt971_config_intr(struct phy_device *phydev)
114{
115 int err;
116
117 if(phydev->interrupts == PHY_INTERRUPT_ENABLED)
118 err = phy_write(phydev, MII_LXT971_IER, MII_LXT971_IER_IEN);
119 else
120 err = phy_write(phydev, MII_LXT971_IER, 0);
121
122 return err;
123}
124
125static int lxt973_probe(struct phy_device *phydev)
126{
127 int val = phy_read(phydev, MII_LXT973_PCR);
128
129 if (val & PCR_FIBER_SELECT) {
130 /*
131 * If fiber is selected, then the only correct setting
132 * is 100Mbps, full duplex, and auto negotiation off.
133 */
134 val = phy_read(phydev, MII_BMCR);
135 val |= (BMCR_SPEED100 | BMCR_FULLDPLX);
136 val &= ~BMCR_ANENABLE;
137 phy_write(phydev, MII_BMCR, val);
138 /* Remember that the port is in fiber mode. */
139 phydev->priv = lxt973_probe;
140 } else {
141 phydev->priv = NULL;
142 }
143 return 0;
144}
145
146static int lxt973_config_aneg(struct phy_device *phydev)
147{
148 /* Do nothing if port is in fiber mode. */
149 return phydev->priv ? 0 : genphy_config_aneg(phydev);
150}
151
152static struct phy_driver lxt970_driver = {
153 .phy_id = 0x78100000,
154 .name = "LXT970",
155 .phy_id_mask = 0xfffffff0,
156 .features = PHY_BASIC_FEATURES,
157 .flags = PHY_HAS_INTERRUPT,
158 .config_init = lxt970_config_init,
159 .config_aneg = genphy_config_aneg,
160 .read_status = genphy_read_status,
161 .ack_interrupt = lxt970_ack_interrupt,
162 .config_intr = lxt970_config_intr,
163 .driver = { .owner = THIS_MODULE,},
164};
165
166static struct phy_driver lxt971_driver = {
167 .phy_id = 0x001378e0,
168 .name = "LXT971",
169 .phy_id_mask = 0xfffffff0,
170 .features = PHY_BASIC_FEATURES,
171 .flags = PHY_HAS_INTERRUPT,
172 .config_aneg = genphy_config_aneg,
173 .read_status = genphy_read_status,
174 .ack_interrupt = lxt971_ack_interrupt,
175 .config_intr = lxt971_config_intr,
176 .driver = { .owner = THIS_MODULE,},
177};
178
179static struct phy_driver lxt973_driver = {
180 .phy_id = 0x00137a10,
181 .name = "LXT973",
182 .phy_id_mask = 0xfffffff0,
183 .features = PHY_BASIC_FEATURES,
184 .flags = 0,
185 .probe = lxt973_probe,
186 .config_aneg = lxt973_config_aneg,
187 .read_status = genphy_read_status,
188 .driver = { .owner = THIS_MODULE,},
189};
190
191static int __init lxt_init(void)
192{
193 int ret;
194
195 ret = phy_driver_register(&lxt970_driver);
196 if (ret)
197 goto err1;
198
199 ret = phy_driver_register(&lxt971_driver);
200 if (ret)
201 goto err2;
202
203 ret = phy_driver_register(&lxt973_driver);
204 if (ret)
205 goto err3;
206 return 0;
207
208 err3:
209 phy_driver_unregister(&lxt971_driver);
210 err2:
211 phy_driver_unregister(&lxt970_driver);
212 err1:
213 return ret;
214}
215
216static void __exit lxt_exit(void)
217{
218 phy_driver_unregister(&lxt970_driver);
219 phy_driver_unregister(&lxt971_driver);
220 phy_driver_unregister(&lxt973_driver);
221}
222
223module_init(lxt_init);
224module_exit(lxt_exit);
225
226static struct mdio_device_id __maybe_unused lxt_tbl[] = {
227 { 0x78100000, 0xfffffff0 },
228 { 0x001378e0, 0xfffffff0 },
229 { 0x00137a10, 0xfffffff0 },
230 { }
231};
232
233MODULE_DEVICE_TABLE(mdio, lxt_tbl);
1/*
2 * drivers/net/phy/lxt.c
3 *
4 * Driver for Intel LXT PHYs
5 *
6 * Author: Andy Fleming
7 *
8 * Copyright (c) 2004 Freescale Semiconductor, Inc.
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 */
16#include <linux/kernel.h>
17#include <linux/string.h>
18#include <linux/errno.h>
19#include <linux/unistd.h>
20#include <linux/interrupt.h>
21#include <linux/init.h>
22#include <linux/delay.h>
23#include <linux/netdevice.h>
24#include <linux/etherdevice.h>
25#include <linux/skbuff.h>
26#include <linux/spinlock.h>
27#include <linux/mm.h>
28#include <linux/module.h>
29#include <linux/mii.h>
30#include <linux/ethtool.h>
31#include <linux/phy.h>
32
33#include <asm/io.h>
34#include <asm/irq.h>
35#include <asm/uaccess.h>
36
37/* The Level one LXT970 is used by many boards */
38
39#define MII_LXT970_IER 17 /* Interrupt Enable Register */
40
41#define MII_LXT970_IER_IEN 0x0002
42
43#define MII_LXT970_ISR 18 /* Interrupt Status Register */
44
45#define MII_LXT970_CONFIG 19 /* Configuration Register */
46
47/* ------------------------------------------------------------------------- */
48/* The Level one LXT971 is used on some of my custom boards */
49
50/* register definitions for the 971 */
51#define MII_LXT971_IER 18 /* Interrupt Enable Register */
52#define MII_LXT971_IER_IEN 0x00f2
53
54#define MII_LXT971_ISR 19 /* Interrupt Status Register */
55
56/* register definitions for the 973 */
57#define MII_LXT973_PCR 16 /* Port Configuration Register */
58#define PCR_FIBER_SELECT 1
59
60MODULE_DESCRIPTION("Intel LXT PHY driver");
61MODULE_AUTHOR("Andy Fleming");
62MODULE_LICENSE("GPL");
63
64static int lxt970_ack_interrupt(struct phy_device *phydev)
65{
66 int err;
67
68 err = phy_read(phydev, MII_BMSR);
69
70 if (err < 0)
71 return err;
72
73 err = phy_read(phydev, MII_LXT970_ISR);
74
75 if (err < 0)
76 return err;
77
78 return 0;
79}
80
81static int lxt970_config_intr(struct phy_device *phydev)
82{
83 int err;
84
85 if(phydev->interrupts == PHY_INTERRUPT_ENABLED)
86 err = phy_write(phydev, MII_LXT970_IER, MII_LXT970_IER_IEN);
87 else
88 err = phy_write(phydev, MII_LXT970_IER, 0);
89
90 return err;
91}
92
93static int lxt970_config_init(struct phy_device *phydev)
94{
95 int err;
96
97 err = phy_write(phydev, MII_LXT970_CONFIG, 0);
98
99 return err;
100}
101
102
103static int lxt971_ack_interrupt(struct phy_device *phydev)
104{
105 int err = phy_read(phydev, MII_LXT971_ISR);
106
107 if (err < 0)
108 return err;
109
110 return 0;
111}
112
113static int lxt971_config_intr(struct phy_device *phydev)
114{
115 int err;
116
117 if(phydev->interrupts == PHY_INTERRUPT_ENABLED)
118 err = phy_write(phydev, MII_LXT971_IER, MII_LXT971_IER_IEN);
119 else
120 err = phy_write(phydev, MII_LXT971_IER, 0);
121
122 return err;
123}
124
125static int lxt973_probe(struct phy_device *phydev)
126{
127 int val = phy_read(phydev, MII_LXT973_PCR);
128
129 if (val & PCR_FIBER_SELECT) {
130 /*
131 * If fiber is selected, then the only correct setting
132 * is 100Mbps, full duplex, and auto negotiation off.
133 */
134 val = phy_read(phydev, MII_BMCR);
135 val |= (BMCR_SPEED100 | BMCR_FULLDPLX);
136 val &= ~BMCR_ANENABLE;
137 phy_write(phydev, MII_BMCR, val);
138 /* Remember that the port is in fiber mode. */
139 phydev->priv = lxt973_probe;
140 } else {
141 phydev->priv = NULL;
142 }
143 return 0;
144}
145
146static int lxt973_config_aneg(struct phy_device *phydev)
147{
148 /* Do nothing if port is in fiber mode. */
149 return phydev->priv ? 0 : genphy_config_aneg(phydev);
150}
151
152static struct phy_driver lxt970_driver = {
153 .phy_id = 0x78100000,
154 .name = "LXT970",
155 .phy_id_mask = 0xfffffff0,
156 .features = PHY_BASIC_FEATURES,
157 .flags = PHY_HAS_INTERRUPT,
158 .config_init = lxt970_config_init,
159 .config_aneg = genphy_config_aneg,
160 .read_status = genphy_read_status,
161 .ack_interrupt = lxt970_ack_interrupt,
162 .config_intr = lxt970_config_intr,
163 .driver = { .owner = THIS_MODULE,},
164};
165
166static struct phy_driver lxt971_driver = {
167 .phy_id = 0x001378e0,
168 .name = "LXT971",
169 .phy_id_mask = 0xfffffff0,
170 .features = PHY_BASIC_FEATURES,
171 .flags = PHY_HAS_INTERRUPT,
172 .config_aneg = genphy_config_aneg,
173 .read_status = genphy_read_status,
174 .ack_interrupt = lxt971_ack_interrupt,
175 .config_intr = lxt971_config_intr,
176 .driver = { .owner = THIS_MODULE,},
177};
178
179static struct phy_driver lxt973_driver = {
180 .phy_id = 0x00137a10,
181 .name = "LXT973",
182 .phy_id_mask = 0xfffffff0,
183 .features = PHY_BASIC_FEATURES,
184 .flags = 0,
185 .probe = lxt973_probe,
186 .config_aneg = lxt973_config_aneg,
187 .read_status = genphy_read_status,
188 .driver = { .owner = THIS_MODULE,},
189};
190
191static int __init lxt_init(void)
192{
193 int ret;
194
195 ret = phy_driver_register(&lxt970_driver);
196 if (ret)
197 goto err1;
198
199 ret = phy_driver_register(&lxt971_driver);
200 if (ret)
201 goto err2;
202
203 ret = phy_driver_register(&lxt973_driver);
204 if (ret)
205 goto err3;
206 return 0;
207
208 err3:
209 phy_driver_unregister(&lxt971_driver);
210 err2:
211 phy_driver_unregister(&lxt970_driver);
212 err1:
213 return ret;
214}
215
216static void __exit lxt_exit(void)
217{
218 phy_driver_unregister(&lxt970_driver);
219 phy_driver_unregister(&lxt971_driver);
220 phy_driver_unregister(&lxt973_driver);
221}
222
223module_init(lxt_init);
224module_exit(lxt_exit);
225
226static struct mdio_device_id __maybe_unused lxt_tbl[] = {
227 { 0x78100000, 0xfffffff0 },
228 { 0x001378e0, 0xfffffff0 },
229 { 0x00137a10, 0xfffffff0 },
230 { }
231};
232
233MODULE_DEVICE_TABLE(mdio, lxt_tbl);