1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
|
/*
* drivers/net/phy/davicom.c
*
* Driver for Davicom PHYs
*
* Author: Andy Fleming
*
* Copyright (c) 2004 Freescale Semiconductor, Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
*/
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/errno.h>
#include <linux/unistd.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
#include <linux/spinlock.h>
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/mii.h>
#include <linux/ethtool.h>
#include <linux/phy.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/uaccess.h>
#define MII_DM9161_SCR 0x10
#define MII_DM9161_SCR_INIT 0x0610
#define MII_DM9161_SCR_RMII 0x0100
/* DM9161 Interrupt Register */
#define MII_DM9161_INTR 0x15
#define MII_DM9161_INTR_PEND 0x8000
#define MII_DM9161_INTR_DPLX_MASK 0x0800
#define MII_DM9161_INTR_SPD_MASK 0x0400
#define MII_DM9161_INTR_LINK_MASK 0x0200
#define MII_DM9161_INTR_MASK 0x0100
#define MII_DM9161_INTR_DPLX_CHANGE 0x0010
#define MII_DM9161_INTR_SPD_CHANGE 0x0008
#define MII_DM9161_INTR_LINK_CHANGE 0x0004
#define MII_DM9161_INTR_INIT 0x0000
#define MII_DM9161_INTR_STOP \
(MII_DM9161_INTR_DPLX_MASK | MII_DM9161_INTR_SPD_MASK \
| MII_DM9161_INTR_LINK_MASK | MII_DM9161_INTR_MASK)
/* DM9161 10BT Configuration/Status */
#define MII_DM9161_10BTCSR 0x12
#define MII_DM9161_10BTCSR_INIT 0x7800
MODULE_DESCRIPTION("Davicom PHY driver");
MODULE_AUTHOR("Andy Fleming");
MODULE_LICENSE("GPL");
#define DM9161_DELAY 1
static int dm9161_config_intr(struct phy_device *phydev)
{
int temp;
temp = phy_read(phydev, MII_DM9161_INTR);
if (temp < 0)
return temp;
if(PHY_INTERRUPT_ENABLED == phydev->interrupts )
temp &= ~(MII_DM9161_INTR_STOP);
else
temp |= MII_DM9161_INTR_STOP;
temp = phy_write(phydev, MII_DM9161_INTR, temp);
return temp;
}
static int dm9161_config_aneg(struct phy_device *phydev)
{
int err;
/* Isolate the PHY */
err = phy_write(phydev, MII_BMCR, BMCR_ISOLATE);
if (err < 0)
return err;
/* Configure the new settings */
err = genphy_config_aneg(phydev);
if (err < 0)
return err;
return 0;
}
static int dm9161_config_init(struct phy_device *phydev)
{
int err, temp;
/* Isolate the PHY */
err = phy_write(phydev, MII_BMCR, BMCR_ISOLATE);
if (err < 0)
return err;
switch (phydev->interface) {
case PHY_INTERFACE_MODE_MII:
temp = MII_DM9161_SCR_INIT;
break;
case PHY_INTERFACE_MODE_RMII:
temp = MII_DM9161_SCR_INIT | MII_DM9161_SCR_RMII;
break;
default:
return -EINVAL;
}
/* Do not bypass the scrambler/descrambler */
err = phy_write(phydev, MII_DM9161_SCR, temp);
if (err < 0)
return err;
/* Clear 10BTCSR to default */
err = phy_write(phydev, MII_DM9161_10BTCSR, MII_DM9161_10BTCSR_INIT);
if (err < 0)
return err;
/* Reconnect the PHY, and enable Autonegotiation */
err = phy_write(phydev, MII_BMCR, BMCR_ANENABLE);
if (err < 0)
return err;
return 0;
}
static int dm9161_ack_interrupt(struct phy_device *phydev)
{
int err = phy_read(phydev, MII_DM9161_INTR);
return (err < 0) ? err : 0;
}
static struct phy_driver dm9161e_driver = {
.phy_id = 0x0181b880,
.name = "Davicom DM9161E",
.phy_id_mask = 0x0ffffff0,
.features = PHY_BASIC_FEATURES,
.config_init = dm9161_config_init,
.config_aneg = dm9161_config_aneg,
.read_status = genphy_read_status,
.driver = { .owner = THIS_MODULE,},
};
static struct phy_driver dm9161a_driver = {
.phy_id = 0x0181b8a0,
.name = "Davicom DM9161A",
.phy_id_mask = 0x0ffffff0,
.features = PHY_BASIC_FEATURES,
.config_init = dm9161_config_init,
.config_aneg = dm9161_config_aneg,
.read_status = genphy_read_status,
.driver = { .owner = THIS_MODULE,},
};
static struct phy_driver dm9131_driver = {
.phy_id = 0x00181b80,
.name = "Davicom DM9131",
.phy_id_mask = 0x0ffffff0,
.features = PHY_BASIC_FEATURES,
.flags = PHY_HAS_INTERRUPT,
.config_aneg = genphy_config_aneg,
.read_status = genphy_read_status,
.ack_interrupt = dm9161_ack_interrupt,
.config_intr = dm9161_config_intr,
.driver = { .owner = THIS_MODULE,},
};
static int __init davicom_init(void)
{
int ret;
ret = phy_driver_register(&dm9161e_driver);
if (ret)
goto err1;
ret = phy_driver_register(&dm9161a_driver);
if (ret)
goto err2;
ret = phy_driver_register(&dm9131_driver);
if (ret)
goto err3;
return 0;
err3:
phy_driver_unregister(&dm9161a_driver);
err2:
phy_driver_unregister(&dm9161e_driver);
err1:
return ret;
}
static void __exit davicom_exit(void)
{
phy_driver_unregister(&dm9161e_driver);
phy_driver_unregister(&dm9161a_driver);
phy_driver_unregister(&dm9131_driver);
}
module_init(davicom_init);
module_exit(davicom_exit);
|
