2 * drivers/net/phy/marvell.c
4 * Driver for Marvell PHYs
8 * Copyright (c) 2004 Freescale Semiconductor, Inc.
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.
16 #include <linux/kernel.h>
17 #include <linux/string.h>
18 #include <linux/errno.h>
19 #include <linux/unistd.h>
20 #include <linux/slab.h>
21 #include <linux/interrupt.h>
22 #include <linux/init.h>
23 #include <linux/delay.h>
24 #include <linux/netdevice.h>
25 #include <linux/etherdevice.h>
26 #include <linux/skbuff.h>
27 #include <linux/spinlock.h>
29 #include <linux/module.h>
30 #include <linux/mii.h>
31 #include <linux/ethtool.h>
32 #include <linux/phy.h>
36 #include <asm/uaccess.h>
38 #define MII_M1011_IEVENT 0x13
39 #define MII_M1011_IEVENT_CLEAR 0x0000
41 #define MII_M1011_IMASK 0x12
42 #define MII_M1011_IMASK_INIT 0x6400
43 #define MII_M1011_IMASK_CLEAR 0x0000
45 MODULE_DESCRIPTION("Marvell PHY driver");
46 MODULE_AUTHOR("Andy Fleming");
47 MODULE_LICENSE("GPL");
49 static int marvell_ack_interrupt(struct phy_device *phydev)
53 /* Clear the interrupts by reading the reg */
54 err = phy_read(phydev, MII_M1011_IEVENT);
62 static int marvell_config_intr(struct phy_device *phydev)
66 if(phydev->interrupts == PHY_INTERRUPT_ENABLED)
67 err = phy_write(phydev, MII_M1011_IMASK, MII_M1011_IMASK_INIT);
69 err = phy_write(phydev, MII_M1011_IMASK, MII_M1011_IMASK_CLEAR);
74 static int marvell_config_aneg(struct phy_device *phydev)
78 /* The Marvell PHY has an errata which requires
79 * that certain registers get written in order
80 * to restart autonegotiation */
81 err = phy_write(phydev, MII_BMCR, BMCR_RESET);
86 err = phy_write(phydev, 0x1d, 0x1f);
90 err = phy_write(phydev, 0x1e, 0x200c);
94 err = phy_write(phydev, 0x1d, 0x5);
98 err = phy_write(phydev, 0x1e, 0);
102 err = phy_write(phydev, 0x1e, 0x100);
107 err = genphy_config_aneg(phydev);
113 static struct phy_driver m88e1101_driver = {
114 .phy_id = 0x01410c00,
115 .phy_id_mask = 0xffffff00,
116 .name = "Marvell 88E1101",
117 .features = PHY_GBIT_FEATURES,
118 .flags = PHY_HAS_INTERRUPT,
119 .config_aneg = &marvell_config_aneg,
120 .read_status = &genphy_read_status,
121 .ack_interrupt = &marvell_ack_interrupt,
122 .config_intr = &marvell_config_intr,
123 .driver = { .owner = THIS_MODULE,},
126 static int __init marvell_init(void)
128 return phy_driver_register(&m88e1101_driver);
131 static void __exit marvell_exit(void)
133 phy_driver_unregister(&m88e1101_driver);
136 module_init(marvell_init);
137 module_exit(marvell_exit);