tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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@smsc.com
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/phy.h>
24#include <linux/netdevice.h>
25
26#define MII_LAN83C185_ISF 29 /* Interrupt Source Flags */
27#define MII_LAN83C185_IM 30 /* Interrupt Mask */
28#define MII_LAN83C185_CTRL_STATUS 17 /* Mode/Status Register */
29
30#define MII_LAN83C185_ISF_INT1 (1<<1) /* Auto-Negotiation Page Received */
31#define MII_LAN83C185_ISF_INT2 (1<<2) /* Parallel Detection Fault */
32#define MII_LAN83C185_ISF_INT3 (1<<3) /* Auto-Negotiation LP Ack */
33#define MII_LAN83C185_ISF_INT4 (1<<4) /* Link Down */
34#define MII_LAN83C185_ISF_INT5 (1<<5) /* Remote Fault Detected */
35#define MII_LAN83C185_ISF_INT6 (1<<6) /* Auto-Negotiation complete */
36#define MII_LAN83C185_ISF_INT7 (1<<7) /* ENERGYON */
37
38#define MII_LAN83C185_ISF_INT_ALL (0x0e)
39
40#define MII_LAN83C185_ISF_INT_PHYLIB_EVENTS \
41 (MII_LAN83C185_ISF_INT6 | MII_LAN83C185_ISF_INT4 | \
42 MII_LAN83C185_ISF_INT7)
43
44#define MII_LAN83C185_EDPWRDOWN (1 << 13) /* EDPWRDOWN */
45
46static int smsc_phy_config_intr(struct phy_device *phydev)
47{
48 int rc = phy_write (phydev, MII_LAN83C185_IM,
49 ((PHY_INTERRUPT_ENABLED == phydev->interrupts)
50 ? MII_LAN83C185_ISF_INT_PHYLIB_EVENTS
51 : 0));
52
53 return rc < 0 ? rc : 0;
54}
55
56static int smsc_phy_ack_interrupt(struct phy_device *phydev)
57{
58 int rc = phy_read (phydev, MII_LAN83C185_ISF);
59
60 return rc < 0 ? rc : 0;
61}
62
63static int smsc_phy_config_init(struct phy_device *phydev)
64{
65 int rc = phy_read(phydev, MII_LAN83C185_CTRL_STATUS);
66 if (rc < 0)
67 return rc;
68
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 return smsc_phy_ack_interrupt (phydev);
76}
77
78static int lan911x_config_init(struct phy_device *phydev)
79{
80 return smsc_phy_ack_interrupt(phydev);
81}
82
83static struct phy_driver lan83c185_driver = {
84 .phy_id = 0x0007c0a0, /* OUI=0x00800f, Model#=0x0a */
85 .phy_id_mask = 0xfffffff0,
86 .name = "SMSC LAN83C185",
87
88 .features = (PHY_BASIC_FEATURES | SUPPORTED_Pause
89 | SUPPORTED_Asym_Pause),
90 .flags = PHY_HAS_INTERRUPT | PHY_HAS_MAGICANEG,
91
92 /* basic functions */
93 .config_aneg = genphy_config_aneg,
94 .read_status = genphy_read_status,
95 .config_init = smsc_phy_config_init,
96
97 /* IRQ related */
98 .ack_interrupt = smsc_phy_ack_interrupt,
99 .config_intr = smsc_phy_config_intr,
100
101 .suspend = genphy_suspend,
102 .resume = genphy_resume,
103
104 .driver = { .owner = THIS_MODULE, }
105};
106
107static struct phy_driver lan8187_driver = {
108 .phy_id = 0x0007c0b0, /* OUI=0x00800f, Model#=0x0b */
109 .phy_id_mask = 0xfffffff0,
110 .name = "SMSC LAN8187",
111
112 .features = (PHY_BASIC_FEATURES | SUPPORTED_Pause
113 | SUPPORTED_Asym_Pause),
114 .flags = PHY_HAS_INTERRUPT | PHY_HAS_MAGICANEG,
115
116 /* basic functions */
117 .config_aneg = genphy_config_aneg,
118 .read_status = genphy_read_status,
119 .config_init = smsc_phy_config_init,
120
121 /* IRQ related */
122 .ack_interrupt = smsc_phy_ack_interrupt,
123 .config_intr = smsc_phy_config_intr,
124
125 .suspend = genphy_suspend,
126 .resume = genphy_resume,
127
128 .driver = { .owner = THIS_MODULE, }
129};
130
131static struct phy_driver lan8700_driver = {
132 .phy_id = 0x0007c0c0, /* OUI=0x00800f, Model#=0x0c */
133 .phy_id_mask = 0xfffffff0,
134 .name = "SMSC LAN8700",
135
136 .features = (PHY_BASIC_FEATURES | SUPPORTED_Pause
137 | SUPPORTED_Asym_Pause),
138 .flags = PHY_HAS_INTERRUPT | PHY_HAS_MAGICANEG,
139
140 /* basic functions */
141 .config_aneg = genphy_config_aneg,
142 .read_status = genphy_read_status,
143 .config_init = smsc_phy_config_init,
144
145 /* IRQ related */
146 .ack_interrupt = smsc_phy_ack_interrupt,
147 .config_intr = smsc_phy_config_intr,
148
149 .suspend = genphy_suspend,
150 .resume = genphy_resume,
151
152 .driver = { .owner = THIS_MODULE, }
153};
154
155static struct phy_driver lan911x_int_driver = {
156 .phy_id = 0x0007c0d0, /* OUI=0x00800f, Model#=0x0d */
157 .phy_id_mask = 0xfffffff0,
158 .name = "SMSC LAN911x Internal PHY",
159
160 .features = (PHY_BASIC_FEATURES | SUPPORTED_Pause
161 | SUPPORTED_Asym_Pause),
162 .flags = PHY_HAS_INTERRUPT | PHY_HAS_MAGICANEG,
163
164 /* basic functions */
165 .config_aneg = genphy_config_aneg,
166 .read_status = genphy_read_status,
167 .config_init = lan911x_config_init,
168
169 /* IRQ related */
170 .ack_interrupt = smsc_phy_ack_interrupt,
171 .config_intr = smsc_phy_config_intr,
172
173 .suspend = genphy_suspend,
174 .resume = genphy_resume,
175
176 .driver = { .owner = THIS_MODULE, }
177};
178
179static struct phy_driver lan8710_driver = {
180 .phy_id = 0x0007c0f0, /* OUI=0x00800f, Model#=0x0f */
181 .phy_id_mask = 0xfffffff0,
182 .name = "SMSC LAN8710/LAN8720",
183
184 .features = (PHY_BASIC_FEATURES | SUPPORTED_Pause
185 | SUPPORTED_Asym_Pause),
186 .flags = PHY_HAS_INTERRUPT | PHY_HAS_MAGICANEG,
187
188 /* basic functions */
189 .config_aneg = genphy_config_aneg,
190 .read_status = genphy_read_status,
191 .config_init = smsc_phy_config_init,
192
193 /* IRQ related */
194 .ack_interrupt = smsc_phy_ack_interrupt,
195 .config_intr = smsc_phy_config_intr,
196
197 .suspend = genphy_suspend,
198 .resume = genphy_resume,
199
200 .driver = { .owner = THIS_MODULE, }
201};
202
203static int __init smsc_init(void)
204{
205 int ret;
206
207 ret = phy_driver_register (&lan83c185_driver);
208 if (ret)
209 goto err1;
210
211 ret = phy_driver_register (&lan8187_driver);
212 if (ret)
213 goto err2;
214
215 ret = phy_driver_register (&lan8700_driver);
216 if (ret)
217 goto err3;
218
219 ret = phy_driver_register (&lan911x_int_driver);
220 if (ret)
221 goto err4;
222
223 ret = phy_driver_register (&lan8710_driver);
224 if (ret)
225 goto err5;
226
227 return 0;
228
229err5:
230 phy_driver_unregister (&lan911x_int_driver);
231err4:
232 phy_driver_unregister (&lan8700_driver);
233err3:
234 phy_driver_unregister (&lan8187_driver);
235err2:
236 phy_driver_unregister (&lan83c185_driver);
237err1:
238 return ret;
239}
240
241static void __exit smsc_exit(void)
242{
243 phy_driver_unregister (&lan8710_driver);
244 phy_driver_unregister (&lan911x_int_driver);
245 phy_driver_unregister (&lan8700_driver);
246 phy_driver_unregister (&lan8187_driver);
247 phy_driver_unregister (&lan83c185_driver);
248}
249
250MODULE_DESCRIPTION("SMSC PHY driver");
251MODULE_AUTHOR("Herbert Valerio Riedel");
252MODULE_LICENSE("GPL");
253
254module_init(smsc_init);
255module_exit(smsc_exit);
256
257static struct mdio_device_id __maybe_unused smsc_tbl[] = {
258 { 0x0007c0a0, 0xfffffff0 },
259 { 0x0007c0b0, 0xfffffff0 },
260 { 0x0007c0c0, 0xfffffff0 },
261 { 0x0007c0d0, 0xfffffff0 },
262 { 0x0007c0f0, 0xfffffff0 },
263 { }
264};
265
266MODULE_DEVICE_TABLE(mdio, smsc_tbl);