source: trunk/target/linux/generic/files/drivers/net/phy/micrel.c @ 30946

Last change on this file since 30946 was 30946, checked in by juhosg, 4 years ago

ar71xx: move micrel PHY driver to the generic linux target

  • Property svn:eol-style set to native
File size: 2.0 KB
Line 
1/*
2 *  Driver for Micrel/Kendin PHYs
3 *
4 *  Copyright (c) 2008-2009 Gabor Juhos <juhosg@openwrt.org>
5 *  Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
6 *
7 *  This program is free software; you can redistribute it and/or modify it
8 *  under the terms of the GNU General Public License version 2 as published
9 *  by the Free Software Foundation.
10 *
11 */
12
13#include <linux/module.h>
14#include <linux/delay.h>
15#include <linux/skbuff.h>
16#include <linux/phy.h>
17
18#define KSZ_REG_INT_CTRL        0x1b
19
20#define KSZ_INT_LU_EN   (1 << 8)        /* enable Link Up interrupt */
21#define KSZ_INT_RF_EN   (1 << 9)        /* enable Remote Fault interrupt */
22#define KSZ_INT_LD_EN   (1 << 10)       /* enable Link Down interrupt */
23
24#define KSZ_INT_INIT    (KSZ_INT_LU_EN | KSZ_INT_LD_EN)
25
26static int ksz8041_ack_interrupt(struct phy_device *phydev)
27{
28        int err;
29
30        err = phy_read(phydev, KSZ_REG_INT_CTRL);
31
32        return (err < 0) ? err : 0;
33}
34
35static int ksz8041_config_intr(struct phy_device *phydev)
36{
37        int err;
38
39        if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
40                err = phy_write(phydev, KSZ_REG_INT_CTRL,
41                                KSZ_INT_INIT);
42        else
43                err = phy_write(phydev, KSZ_REG_INT_CTRL, 0);
44
45        return err;
46}
47
48static struct phy_driver ksz8041_phy_driver = {
49        .phy_id         = 0x00221512,
50        .name           = "Micrel KSZ8041",
51        .phy_id_mask    = 0x001fffff,
52        .features       = PHY_BASIC_FEATURES,
53        .flags          = PHY_HAS_INTERRUPT,
54        .config_aneg    = genphy_config_aneg,
55        .read_status    = genphy_read_status,
56        .ack_interrupt  = ksz8041_ack_interrupt,
57        .config_intr    = ksz8041_config_intr,
58        .driver = {
59                .owner  = THIS_MODULE,
60        },
61};
62
63static int __init micrel_phy_init(void)
64{
65        return phy_driver_register(&ksz8041_phy_driver);
66}
67
68static void __exit micrel_phy_exit(void)
69{
70        phy_driver_unregister(&ksz8041_phy_driver);
71}
72
73#ifdef MODULE
74module_init(micrel_phy_init);
75module_exit(micrel_phy_exit);
76#else
77subsys_initcall(micrel_phy_init);
78#endif
79
80MODULE_DESCRIPTION("Micrel/Kendin PHY driver");
81MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>");
82MODULE_AUTHOR("Imre Kaloz <kaloz@openwrt.org>");
83MODULE_LICENSE("GPL v2");
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