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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 | |
25 | ||
ef3d9049 GC |
26 | #define RTL8211E_INER_LINK_STAT 0x10 |
27 | ||
097c2aa8 JL |
28 | MODULE_DESCRIPTION("Realtek PHY driver"); |
29 | MODULE_AUTHOR("Johnson Leung"); | |
30 | MODULE_LICENSE("GPL"); | |
31 | ||
32 | static int rtl821x_ack_interrupt(struct phy_device *phydev) | |
33 | { | |
34 | int err; | |
35 | ||
36 | err = phy_read(phydev, RTL821x_INSR); | |
37 | ||
38 | return (err < 0) ? err : 0; | |
39 | } | |
40 | ||
ef3d9049 | 41 | static int rtl8211b_config_intr(struct phy_device *phydev) |
097c2aa8 JL |
42 | { |
43 | int err; | |
44 | ||
45 | if (phydev->interrupts == PHY_INTERRUPT_ENABLED) | |
46 | err = phy_write(phydev, RTL821x_INER, | |
47 | RTL821x_INER_INIT); | |
48 | else | |
49 | err = phy_write(phydev, RTL821x_INER, 0); | |
50 | ||
51 | return err; | |
52 | } | |
53 | ||
ef3d9049 GC |
54 | static int rtl8211e_config_intr(struct phy_device *phydev) |
55 | { | |
56 | int err; | |
57 | ||
58 | if (phydev->interrupts == PHY_INTERRUPT_ENABLED) | |
59 | err = phy_write(phydev, RTL821x_INER, | |
60 | RTL8211E_INER_LINK_STAT); | |
61 | else | |
62 | err = phy_write(phydev, RTL821x_INER, 0); | |
63 | ||
64 | return err; | |
65 | } | |
66 | ||
097c2aa8 | 67 | /* RTL8211B */ |
ef3d9049 | 68 | static struct phy_driver rtl8211b_driver = { |
097c2aa8 | 69 | .phy_id = 0x001cc912, |
ef3d9049 | 70 | .name = "RTL8211B Gigabit Ethernet", |
097c2aa8 JL |
71 | .phy_id_mask = 0x001fffff, |
72 | .features = PHY_GBIT_FEATURES, | |
73 | .flags = PHY_HAS_INTERRUPT, | |
74 | .config_aneg = &genphy_config_aneg, | |
75 | .read_status = &genphy_read_status, | |
76 | .ack_interrupt = &rtl821x_ack_interrupt, | |
ef3d9049 GC |
77 | .config_intr = &rtl8211b_config_intr, |
78 | .driver = { .owner = THIS_MODULE,}, | |
79 | }; | |
80 | ||
81 | /* RTL8211E */ | |
82 | static struct phy_driver rtl8211e_driver = { | |
83 | .phy_id = 0x001cc915, | |
84 | .name = "RTL8211E Gigabit Ethernet", | |
85 | .phy_id_mask = 0x001fffff, | |
86 | .features = PHY_GBIT_FEATURES, | |
87 | .flags = PHY_HAS_INTERRUPT, | |
88 | .config_aneg = &genphy_config_aneg, | |
89 | .read_status = &genphy_read_status, | |
90 | .ack_interrupt = &rtl821x_ack_interrupt, | |
91 | .config_intr = &rtl8211e_config_intr, | |
92 | .suspend = genphy_suspend, | |
93 | .resume = genphy_resume, | |
097c2aa8 JL |
94 | .driver = { .owner = THIS_MODULE,}, |
95 | }; | |
96 | ||
97 | static int __init realtek_init(void) | |
98 | { | |
ef3d9049 GC |
99 | int ret; |
100 | ||
101 | ret = phy_driver_register(&rtl8211b_driver); | |
102 | if (ret < 0) | |
103 | return -ENODEV; | |
104 | return phy_driver_register(&rtl8211e_driver); | |
097c2aa8 JL |
105 | } |
106 | ||
107 | static void __exit realtek_exit(void) | |
108 | { | |
ef3d9049 GC |
109 | phy_driver_unregister(&rtl8211b_driver); |
110 | phy_driver_unregister(&rtl8211e_driver); | |
097c2aa8 JL |
111 | } |
112 | ||
113 | module_init(realtek_init); | |
114 | module_exit(realtek_exit); | |
4e4f10f6 | 115 | |
cf93c945 | 116 | static struct mdio_device_id __maybe_unused realtek_tbl[] = { |
4e4f10f6 | 117 | { 0x001cc912, 0x001fffff }, |
ef3d9049 | 118 | { 0x001cc915, 0x001fffff }, |
4e4f10f6 DW |
119 | { } |
120 | }; | |
121 | ||
122 | MODULE_DEVICE_TABLE(mdio, realtek_tbl); |