projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 00db8189 AF |
1 | /* |
| 2 | * drivers/net/phy/lxt.c | |
| 3 | * | |
| 4 | * Driver for Intel LXT 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> | |
| 32 | #include <linux/version.h> | |
| 33 | #include <linux/mii.h> | |
| 34 | #include <linux/ethtool.h> | |
| 35 | #include <linux/phy.h> | |
| 36 | ||
| 37 | #include <asm/io.h> | |
| 38 | #include <asm/irq.h> | |
| 39 | #include <asm/uaccess.h> | |
| 40 | ||
| 41 | /* The Level one LXT970 is used by many boards */ | |
| 42 | ||
| 43 | #define MII_LXT970_IER 17 /* Interrupt Enable Register */ | |
| 44 | ||
| 45 | #define MII_LXT970_IER_IEN 0x0002 | |
| 46 | ||
| 47 | #define MII_LXT970_ISR 18 /* Interrupt Status Register */ | |
| 48 | ||
| 49 | #define MII_LXT970_CONFIG 19 /* Configuration Register */ | |
| 50 | ||
| 51 | /* ------------------------------------------------------------------------- */ | |
| 52 | /* The Level one LXT971 is used on some of my custom boards */ | |
| 53 | ||
| 54 | /* register definitions for the 971 */ | |
| 55 | #define MII_LXT971_IER 18 /* Interrupt Enable Register */ | |
| 56 | #define MII_LXT971_IER_IEN 0x00f2 | |
| 57 | ||
| 58 | #define MII_LXT971_ISR 19 /* Interrupt Status Register */ | |
| 59 | ||
| 60 | ||
| 61 | MODULE_DESCRIPTION("Intel LXT PHY driver"); | |
| 62 | MODULE_AUTHOR("Andy Fleming"); | |
| 63 | MODULE_LICENSE("GPL"); | |
| 64 | ||
| 65 | static int lxt970_ack_interrupt(struct phy_device *phydev) | |
| 66 | { | |
| 67 | int err; | |
| 68 | ||
| 69 | err = phy_read(phydev, MII_BMSR); | |
| 70 | ||
| 71 | if (err < 0) | |
| 72 | return err; | |
| 73 | ||
| 74 | err = phy_read(phydev, MII_LXT970_ISR); | |
| 75 | ||
| 76 | if (err < 0) | |
| 77 | return err; | |
| 78 | ||
| 79 | return 0; | |
| 80 | } | |
| 81 | ||
| 82 | static int lxt970_config_intr(struct phy_device *phydev) | |
| 83 | { | |
| 84 | int err; | |
| 85 | ||
| 86 | if(phydev->interrupts == PHY_INTERRUPT_ENABLED) | |
| 87 | err = phy_write(phydev, MII_LXT970_IER, MII_LXT970_IER_IEN); | |
| 88 | else | |
| 89 | err = phy_write(phydev, MII_LXT970_IER, 0); | |
| 90 | ||
| 91 | return err; | |
| 92 | } | |
| 93 | ||
| 94 | static int lxt970_config_init(struct phy_device *phydev) | |
| 95 | { | |
| 96 | int err; | |
| 97 | ||
| 98 | err = phy_write(phydev, MII_LXT970_CONFIG, 0); | |
| 99 | ||
| 100 | return err; | |
| 101 | } | |
| 102 | ||
| 103 | ||
| 104 | static int lxt971_ack_interrupt(struct phy_device *phydev) | |
| 105 | { | |
| 106 | int err = phy_read(phydev, MII_LXT971_ISR); | |
| 107 | ||
| 108 | if (err < 0) | |
| 109 | return err; | |
| 110 | ||
| 111 | return 0; | |
| 112 | } | |
| 113 | ||
| 114 | static int lxt971_config_intr(struct phy_device *phydev) | |
| 115 | { | |
| 116 | int err; | |
| 117 | ||
| 118 | if(phydev->interrupts == PHY_INTERRUPT_ENABLED) | |
| 119 | err = phy_write(phydev, MII_LXT971_IER, MII_LXT971_IER_IEN); | |
| 120 | else | |
| 121 | err = phy_write(phydev, MII_LXT971_IER, 0); | |
| 122 | ||
| 123 | return err; | |
| 124 | } | |
| 125 | ||
| 126 | static struct phy_driver lxt970_driver = { | |
| 127 | .phy_id = 0x07810000, | |
| 128 | .name = "LXT970", | |
| 129 | .phy_id_mask = 0x0fffffff, | |
| 130 | .features = PHY_BASIC_FEATURES, | |
| 131 | .flags = PHY_HAS_INTERRUPT, | |
| 132 | .config_init = lxt970_config_init, | |
| 133 | .config_aneg = genphy_config_aneg, | |
| 134 | .read_status = genphy_read_status, | |
| 135 | .ack_interrupt = lxt970_ack_interrupt, | |
| 136 | .config_intr = lxt970_config_intr, | |
| 137 | .driver = { .owner = THIS_MODULE,}, | |
| 138 | }; | |
| 139 | ||
| 140 | static struct phy_driver lxt971_driver = { | |
| 141 | .phy_id = 0x0001378e, | |
| 142 | .name = "LXT971", | |
| 143 | .phy_id_mask = 0x0fffffff, | |
| 144 | .features = PHY_BASIC_FEATURES, | |
| 145 | .flags = PHY_HAS_INTERRUPT, | |
| 146 | .config_aneg = genphy_config_aneg, | |
| 147 | .read_status = genphy_read_status, | |
| 148 | .ack_interrupt = lxt971_ack_interrupt, | |
| 149 | .config_intr = lxt971_config_intr, | |
| 150 | .driver = { .owner = THIS_MODULE,}, | |
| 151 | }; | |
| 152 | ||
| 153 | static int __init lxt_init(void) | |
| 154 | { | |
| 155 | int ret; | |
| 156 | ||
| 157 | ret = phy_driver_register(&lxt970_driver); | |
| 158 | if (ret) | |
| 159 | goto err1; | |
| 160 | ||
| 161 | ret = phy_driver_register(&lxt971_driver); | |
| 162 | if (ret) | |
| 163 | goto err2; | |
| 164 | return 0; | |
| 165 | ||
| 166 | err2: | |
| 167 | phy_driver_unregister(&lxt970_driver); | |
| 168 | err1: | |
| 169 | return ret; | |
| 170 | } | |
| 171 | ||
| 172 | static void __exit lxt_exit(void) | |
| 173 | { | |
| 174 | phy_driver_unregister(&lxt970_driver); | |
| 175 | phy_driver_unregister(&lxt971_driver); | |
| 176 | } | |
| 177 | ||
| 178 | module_init(lxt_init); | |
| 179 | module_exit(lxt_exit); |