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
|
/*
* RealTek PHY drivers
*
* SPDX-License-Identifier: GPL-2.0+
*
* Copyright 2010-2011, 2015 Freescale Semiconductor, Inc.
* author Andy Fleming
*/
#include <config.h>
#include <common.h>
#include <phy.h>
#define PHY_AUTONEGOTIATE_TIMEOUT 5000
/* RTL8211x PHY Status Register */
#define MIIM_RTL8211x_PHY_STATUS 0x11
#define MIIM_RTL8211x_PHYSTAT_SPEED 0xc000
#define MIIM_RTL8211x_PHYSTAT_GBIT 0x8000
#define MIIM_RTL8211x_PHYSTAT_100 0x4000
#define MIIM_RTL8211x_PHYSTAT_DUPLEX 0x2000
#define MIIM_RTL8211x_PHYSTAT_SPDDONE 0x0800
#define MIIM_RTL8211x_PHYSTAT_LINK 0x0400
/* RTL8211x PHY Interrupt Enable Register */
#define MIIM_RTL8211x_PHY_INER 0x12
#define MIIM_RTL8211x_PHY_INTR_ENA 0x9f01
#define MIIM_RTL8211x_PHY_INTR_DIS 0x0000
/* RTL8211x PHY Interrupt Status Register */
#define MIIM_RTL8211x_PHY_INSR 0x13
/* RealTek RTL8211x */
static int rtl8211x_config(struct phy_device *phydev)
{
phy_write(phydev, MDIO_DEVAD_NONE, MII_BMCR, BMCR_RESET);
/* mask interrupt at init; if the interrupt is
* needed indeed, it should be explicitly enabled
*/
phy_write(phydev, MDIO_DEVAD_NONE, MIIM_RTL8211x_PHY_INER,
MIIM_RTL8211x_PHY_INTR_DIS);
/* read interrupt status just to clear it */
phy_read(phydev, MDIO_DEVAD_NONE, MIIM_RTL8211x_PHY_INER);
genphy_config_aneg(phydev);
return 0;
}
static int rtl8211x_parse_status(struct phy_device *phydev)
{
unsigned int speed;
unsigned int mii_reg;
mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MIIM_RTL8211x_PHY_STATUS);
if (!(mii_reg & MIIM_RTL8211x_PHYSTAT_SPDDONE)) {
int i = 0;
/* in case of timeout ->link is cleared */
phydev->link = 1;
puts("Waiting for PHY realtime link");
while (!(mii_reg & MIIM_RTL8211x_PHYSTAT_SPDDONE)) {
/* Timeout reached ? */
if (i > PHY_AUTONEGOTIATE_TIMEOUT) {
puts(" TIMEOUT !\n");
phydev->link = 0;
break;
}
if ((i++ % 1000) == 0)
putc('.');
udelay(1000); /* 1 ms */
mii_reg = phy_read(phydev, MDIO_DEVAD_NONE,
MIIM_RTL8211x_PHY_STATUS);
}
puts(" done\n");
udelay(500000); /* another 500 ms (results in faster booting) */
} else {
if (mii_reg & MIIM_RTL8211x_PHYSTAT_LINK)
phydev->link = 1;
else
phydev->link = 0;
}
if (mii_reg & MIIM_RTL8211x_PHYSTAT_DUPLEX)
phydev->duplex = DUPLEX_FULL;
else
phydev->duplex = DUPLEX_HALF;
speed = (mii_reg & MIIM_RTL8211x_PHYSTAT_SPEED);
switch (speed) {
case MIIM_RTL8211x_PHYSTAT_GBIT:
phydev->speed = SPEED_1000;
break;
case MIIM_RTL8211x_PHYSTAT_100:
phydev->speed = SPEED_100;
break;
default:
phydev->speed = SPEED_10;
}
return 0;
}
static int rtl8211x_startup(struct phy_device *phydev)
{
/* Read the Status (2x to make sure link is right) */
genphy_update_link(phydev);
rtl8211x_parse_status(phydev);
return 0;
}
/* Support for RTL8211B PHY */
static struct phy_driver RTL8211B_driver = {
.name = "RealTek RTL8211B",
.uid = 0x1cc910,
.mask = 0xffffff,
.features = PHY_GBIT_FEATURES,
.config = &rtl8211x_config,
.startup = &rtl8211x_startup,
.shutdown = &genphy_shutdown,
};
/* Support for RTL8211E-VB-CG, RTL8211E-VL-CG and RTL8211EG-VB-CG PHYs */
static struct phy_driver RTL8211E_driver = {
.name = "RealTek RTL8211E",
.uid = 0x1cc915,
.mask = 0xffffff,
.features = PHY_GBIT_FEATURES,
.config = &rtl8211x_config,
.startup = &rtl8211x_startup,
.shutdown = &genphy_shutdown,
};
/* Support for RTL8211DN PHY */
static struct phy_driver RTL8211DN_driver = {
.name = "RealTek RTL8211DN",
.uid = 0x1cc914,
.mask = 0xffffff,
.features = PHY_GBIT_FEATURES,
.config = &rtl8211x_config,
.startup = &rtl8211x_startup,
.shutdown = &genphy_shutdown,
};
int phy_realtek_init(void)
{
phy_register(&RTL8211B_driver);
phy_register(&RTL8211E_driver);
phy_register(&RTL8211DN_driver);
return 0;
}
|
