projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 00db8189 AF |
1 | /* |
| 2 | * drivers/net/phy/marvell.c | |
| 3 | * | |
| 4 | * Driver for Marvell PHYs | |
| 5 | * | |
| 6 | * Author: Andy Fleming | |
| 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/config.h> | |
| 17 | #include <linux/kernel.h> | |
| 18 | #include <linux/sched.h> | |
| 19 | #include <linux/string.h> | |
| 20 | #include <linux/errno.h> | |
| 21 | #include <linux/unistd.h> | |
| 22 | #include <linux/slab.h> | |
| 23 | #include <linux/interrupt.h> | |
| 24 | #include <linux/init.h> | |
| 25 | #include <linux/delay.h> | |
| 26 | #include <linux/netdevice.h> | |
| 27 | #include <linux/etherdevice.h> | |
| 28 | #include <linux/skbuff.h> | |
| 29 | #include <linux/spinlock.h> | |
| 30 | #include <linux/mm.h> | |
| 31 | #include <linux/module.h> | |
| 00db8189 AF |
32 | #include <linux/mii.h> |
| 33 | #include <linux/ethtool.h> | |
| 34 | #include <linux/phy.h> | |
| 35 | ||
| 36 | #include <asm/io.h> | |
| 37 | #include <asm/irq.h> | |
| 38 | #include <asm/uaccess.h> | |
| 39 | ||
| 40 | #define MII_M1011_IEVENT 0x13 | |
| 41 | #define MII_M1011_IEVENT_CLEAR 0x0000 | |
| 42 | ||
| 43 | #define MII_M1011_IMASK 0x12 | |
| 44 | #define MII_M1011_IMASK_INIT 0x6400 | |
| 45 | #define MII_M1011_IMASK_CLEAR 0x0000 | |
| 46 | ||
| 47 | MODULE_DESCRIPTION("Marvell PHY driver"); | |
| 48 | MODULE_AUTHOR("Andy Fleming"); | |
| 49 | MODULE_LICENSE("GPL"); | |
| 50 | ||
| 51 | static int marvell_ack_interrupt(struct phy_device *phydev) | |
| 52 | { | |
| 53 | int err; | |
| 54 | ||
| 55 | /* Clear the interrupts by reading the reg */ | |
| 56 | err = phy_read(phydev, MII_M1011_IEVENT); | |
| 57 | ||
| 58 | if (err < 0) | |
| 59 | return err; | |
| 60 | ||
| 61 | return 0; | |
| 62 | } | |
| 63 | ||
| 64 | static int marvell_config_intr(struct phy_device *phydev) | |
| 65 | { | |
| 66 | int err; | |
| 67 | ||
| 68 | if(phydev->interrupts == PHY_INTERRUPT_ENABLED) | |
| 69 | err = phy_write(phydev, MII_M1011_IMASK, MII_M1011_IMASK_INIT); | |
| 70 | else | |
| 71 | err = phy_write(phydev, MII_M1011_IMASK, MII_M1011_IMASK_CLEAR); | |
| 72 | ||
| 73 | return err; | |
| 74 | } | |
| 75 | ||
| 76 | static int marvell_config_aneg(struct phy_device *phydev) | |
| 77 | { | |
| 78 | int err; | |
| 79 | ||
| 80 | /* The Marvell PHY has an errata which requires | |
| 81 | * that certain registers get written in order | |
| 82 | * to restart autonegotiation */ | |
| 83 | err = phy_write(phydev, MII_BMCR, BMCR_RESET); | |
| 84 | ||
| 85 | if (err < 0) | |
| 86 | return err; | |
| 87 | ||
| 88 | err = phy_write(phydev, 0x1d, 0x1f); | |
| 89 | if (err < 0) | |
| 90 | return err; | |
| 91 | ||
| 92 | err = phy_write(phydev, 0x1e, 0x200c); | |
| 93 | if (err < 0) | |
| 94 | return err; | |
| 95 | ||
| 96 | err = phy_write(phydev, 0x1d, 0x5); | |
| 97 | if (err < 0) | |
| 98 | return err; | |
| 99 | ||
| 100 | err = phy_write(phydev, 0x1e, 0); | |
| 101 | if (err < 0) | |
| 102 | return err; | |
| 103 | ||
| 104 | err = phy_write(phydev, 0x1e, 0x100); | |
| 105 | if (err < 0) | |
| 106 | return err; | |
| 107 | ||
| 108 | ||
| 109 | err = genphy_config_aneg(phydev); | |
| 110 | ||
| 111 | return err; | |
| 112 | } | |
| 113 | ||
| 114 | ||
| 115 | static struct phy_driver m88e1101_driver = { | |
| 116 | .phy_id = 0x01410c00, | |
| 117 | .phy_id_mask = 0xffffff00, | |
| 118 | .name = "Marvell 88E1101", | |
| 119 | .features = PHY_GBIT_FEATURES, | |
| 120 | .flags = PHY_HAS_INTERRUPT, | |
| 121 | .config_aneg = &marvell_config_aneg, | |
| 122 | .read_status = &genphy_read_status, | |
| 123 | .ack_interrupt = &marvell_ack_interrupt, | |
| 124 | .config_intr = &marvell_config_intr, | |
| 125 | .driver = { .owner = THIS_MODULE,}, | |
| 126 | }; | |
| 127 | ||
| 128 | static int __init marvell_init(void) | |
| 129 | { | |
| 130 | return phy_driver_register(&m88e1101_driver); | |
| 131 | } | |
| 132 | ||
| 133 | static void __exit marvell_exit(void) | |
| 134 | { | |
| 135 | phy_driver_unregister(&m88e1101_driver); | |
| 136 | } | |
| 137 | ||
| 138 | module_init(marvell_init); | |
| 139 | module_exit(marvell_exit); |