Commit | Line | Data |
---|---|---|
097c2aa8 JL |
1 | /* |
2 | * drivers/net/phy/realtek.c | |
3 | * | |
4 | * Driver for Realtek PHYs | |
5 | * | |
6 | * Author: Johnson Leung <r58129@freescale.com> | |
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/phy.h> | |
9d9779e7 | 17 | #include <linux/module.h> |
097c2aa8 JL |
18 | |
19 | #define RTL821x_PHYSR 0x11 | |
20 | #define RTL821x_PHYSR_DUPLEX 0x2000 | |
21 | #define RTL821x_PHYSR_SPEED 0xc000 | |
22 | #define RTL821x_INER 0x12 | |
23 | #define RTL821x_INER_INIT 0x6400 | |
24 | #define RTL821x_INSR 0x13 | |
3447cf2e | 25 | #define RTL8211E_INER_LINK_STATUS 0x400 |
097c2aa8 | 26 | |
3447cf2e SL |
27 | #define RTL8211F_INER_LINK_STATUS 0x0010 |
28 | #define RTL8211F_INSR 0x1d | |
29 | #define RTL8211F_PAGE_SELECT 0x1f | |
30 | #define RTL8211F_TX_DELAY 0x100 | |
ef3d9049 | 31 | |
097c2aa8 JL |
32 | MODULE_DESCRIPTION("Realtek PHY driver"); |
33 | MODULE_AUTHOR("Johnson Leung"); | |
34 | MODULE_LICENSE("GPL"); | |
35 | ||
36 | static int rtl821x_ack_interrupt(struct phy_device *phydev) | |
37 | { | |
38 | int err; | |
39 | ||
40 | err = phy_read(phydev, RTL821x_INSR); | |
41 | ||
42 | return (err < 0) ? err : 0; | |
43 | } | |
44 | ||
3447cf2e SL |
45 | static int rtl8211f_ack_interrupt(struct phy_device *phydev) |
46 | { | |
47 | int err; | |
48 | ||
49 | phy_write(phydev, RTL8211F_PAGE_SELECT, 0xa43); | |
50 | err = phy_read(phydev, RTL8211F_INSR); | |
51 | /* restore to default page 0 */ | |
52 | phy_write(phydev, RTL8211F_PAGE_SELECT, 0x0); | |
53 | ||
54 | return (err < 0) ? err : 0; | |
55 | } | |
56 | ||
ef3d9049 | 57 | static int rtl8211b_config_intr(struct phy_device *phydev) |
097c2aa8 JL |
58 | { |
59 | int err; | |
60 | ||
61 | if (phydev->interrupts == PHY_INTERRUPT_ENABLED) | |
62 | err = phy_write(phydev, RTL821x_INER, | |
63 | RTL821x_INER_INIT); | |
64 | else | |
65 | err = phy_write(phydev, RTL821x_INER, 0); | |
66 | ||
67 | return err; | |
68 | } | |
69 | ||
ef3d9049 GC |
70 | static int rtl8211e_config_intr(struct phy_device *phydev) |
71 | { | |
72 | int err; | |
73 | ||
74 | if (phydev->interrupts == PHY_INTERRUPT_ENABLED) | |
75 | err = phy_write(phydev, RTL821x_INER, | |
8b64fd61 | 76 | RTL8211E_INER_LINK_STATUS); |
ef3d9049 GC |
77 | else |
78 | err = phy_write(phydev, RTL821x_INER, 0); | |
79 | ||
80 | return err; | |
81 | } | |
82 | ||
3447cf2e SL |
83 | static int rtl8211f_config_intr(struct phy_device *phydev) |
84 | { | |
85 | int err; | |
86 | ||
87 | if (phydev->interrupts == PHY_INTERRUPT_ENABLED) | |
88 | err = phy_write(phydev, RTL821x_INER, | |
89 | RTL8211F_INER_LINK_STATUS); | |
90 | else | |
91 | err = phy_write(phydev, RTL821x_INER, 0); | |
92 | ||
93 | return err; | |
94 | } | |
95 | ||
96 | static int rtl8211f_config_init(struct phy_device *phydev) | |
97 | { | |
98 | int ret; | |
99 | u16 reg; | |
100 | ||
101 | ret = genphy_config_init(phydev); | |
102 | if (ret < 0) | |
103 | return ret; | |
104 | ||
105 | if (phydev->interface == PHY_INTERFACE_MODE_RGMII) { | |
106 | /* enable TXDLY */ | |
107 | phy_write(phydev, RTL8211F_PAGE_SELECT, 0xd08); | |
108 | reg = phy_read(phydev, 0x11); | |
109 | reg |= RTL8211F_TX_DELAY; | |
110 | phy_write(phydev, 0x11, reg); | |
111 | /* restore to default page 0 */ | |
112 | phy_write(phydev, RTL8211F_PAGE_SELECT, 0x0); | |
113 | } | |
114 | ||
115 | return 0; | |
116 | } | |
117 | ||
71b9c4a8 JK |
118 | static struct phy_driver realtek_drvs[] = { |
119 | { | |
120 | .phy_id = 0x00008201, | |
121 | .name = "RTL8201CP Ethernet", | |
122 | .phy_id_mask = 0x0000ffff, | |
123 | .features = PHY_BASIC_FEATURES, | |
124 | .flags = PHY_HAS_INTERRUPT, | |
125 | .config_aneg = &genphy_config_aneg, | |
126 | .read_status = &genphy_read_status, | |
71b9c4a8 JK |
127 | }, { |
128 | .phy_id = 0x001cc912, | |
129 | .name = "RTL8211B Gigabit Ethernet", | |
130 | .phy_id_mask = 0x001fffff, | |
131 | .features = PHY_GBIT_FEATURES, | |
132 | .flags = PHY_HAS_INTERRUPT, | |
133 | .config_aneg = &genphy_config_aneg, | |
134 | .read_status = &genphy_read_status, | |
135 | .ack_interrupt = &rtl821x_ack_interrupt, | |
136 | .config_intr = &rtl8211b_config_intr, | |
0024f892 SX |
137 | }, { |
138 | .phy_id = 0x001cc914, | |
139 | .name = "RTL8211DN Gigabit Ethernet", | |
140 | .phy_id_mask = 0x001fffff, | |
141 | .features = PHY_GBIT_FEATURES, | |
142 | .flags = PHY_HAS_INTERRUPT, | |
143 | .config_aneg = genphy_config_aneg, | |
144 | .read_status = genphy_read_status, | |
145 | .ack_interrupt = rtl821x_ack_interrupt, | |
146 | .config_intr = rtl8211e_config_intr, | |
147 | .suspend = genphy_suspend, | |
148 | .resume = genphy_resume, | |
71b9c4a8 JK |
149 | }, { |
150 | .phy_id = 0x001cc915, | |
151 | .name = "RTL8211E Gigabit Ethernet", | |
152 | .phy_id_mask = 0x001fffff, | |
153 | .features = PHY_GBIT_FEATURES, | |
154 | .flags = PHY_HAS_INTERRUPT, | |
155 | .config_aneg = &genphy_config_aneg, | |
156 | .read_status = &genphy_read_status, | |
157 | .ack_interrupt = &rtl821x_ack_interrupt, | |
158 | .config_intr = &rtl8211e_config_intr, | |
159 | .suspend = genphy_suspend, | |
160 | .resume = genphy_resume, | |
3447cf2e SL |
161 | }, { |
162 | .phy_id = 0x001cc916, | |
163 | .name = "RTL8211F Gigabit Ethernet", | |
164 | .phy_id_mask = 0x001fffff, | |
165 | .features = PHY_GBIT_FEATURES, | |
166 | .flags = PHY_HAS_INTERRUPT, | |
167 | .config_aneg = &genphy_config_aneg, | |
168 | .config_init = &rtl8211f_config_init, | |
169 | .read_status = &genphy_read_status, | |
170 | .ack_interrupt = &rtl8211f_ack_interrupt, | |
171 | .config_intr = &rtl8211f_config_intr, | |
172 | .suspend = genphy_suspend, | |
173 | .resume = genphy_resume, | |
71b9c4a8 | 174 | }, |
097c2aa8 JL |
175 | }; |
176 | ||
50fd7150 | 177 | module_phy_driver(realtek_drvs); |
4e4f10f6 | 178 | |
cf93c945 | 179 | static struct mdio_device_id __maybe_unused realtek_tbl[] = { |
4e4f10f6 | 180 | { 0x001cc912, 0x001fffff }, |
0024f892 | 181 | { 0x001cc914, 0x001fffff }, |
ef3d9049 | 182 | { 0x001cc915, 0x001fffff }, |
3447cf2e | 183 | { 0x001cc916, 0x001fffff }, |
4e4f10f6 DW |
184 | { } |
185 | }; | |
186 | ||
187 | MODULE_DEVICE_TABLE(mdio, realtek_tbl); |