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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 | ||
26 | MODULE_DESCRIPTION("Realtek PHY driver"); | |
27 | MODULE_AUTHOR("Johnson Leung"); | |
28 | MODULE_LICENSE("GPL"); | |
29 | ||
30 | static int rtl821x_ack_interrupt(struct phy_device *phydev) | |
31 | { | |
32 | int err; | |
33 | ||
34 | err = phy_read(phydev, RTL821x_INSR); | |
35 | ||
36 | return (err < 0) ? err : 0; | |
37 | } | |
38 | ||
39 | static int rtl821x_config_intr(struct phy_device *phydev) | |
40 | { | |
41 | int err; | |
42 | ||
43 | if (phydev->interrupts == PHY_INTERRUPT_ENABLED) | |
44 | err = phy_write(phydev, RTL821x_INER, | |
45 | RTL821x_INER_INIT); | |
46 | else | |
47 | err = phy_write(phydev, RTL821x_INER, 0); | |
48 | ||
49 | return err; | |
50 | } | |
51 | ||
52 | /* RTL8211B */ | |
53 | static struct phy_driver rtl821x_driver = { | |
54 | .phy_id = 0x001cc912, | |
55 | .name = "RTL821x Gigabit Ethernet", | |
56 | .phy_id_mask = 0x001fffff, | |
57 | .features = PHY_GBIT_FEATURES, | |
58 | .flags = PHY_HAS_INTERRUPT, | |
59 | .config_aneg = &genphy_config_aneg, | |
60 | .read_status = &genphy_read_status, | |
61 | .ack_interrupt = &rtl821x_ack_interrupt, | |
62 | .config_intr = &rtl821x_config_intr, | |
63 | .driver = { .owner = THIS_MODULE,}, | |
64 | }; | |
65 | ||
66 | static int __init realtek_init(void) | |
67 | { | |
d5bf9071 | 68 | return phy_driver_register(&rtl821x_driver); |
097c2aa8 JL |
69 | } |
70 | ||
71 | static void __exit realtek_exit(void) | |
72 | { | |
73 | phy_driver_unregister(&rtl821x_driver); | |
74 | } | |
75 | ||
76 | module_init(realtek_init); | |
77 | module_exit(realtek_exit); | |
4e4f10f6 | 78 | |
cf93c945 | 79 | static struct mdio_device_id __maybe_unused realtek_tbl[] = { |
4e4f10f6 DW |
80 | { 0x001cc912, 0x001fffff }, |
81 | { } | |
82 | }; | |
83 | ||
84 | MODULE_DEVICE_TABLE(mdio, realtek_tbl); |