projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| ef82a306 JL |
1 | /* |
| 2 | * Driver for Vitesse PHYs | |
| 3 | * | |
| 4 | * Author: Kriston Carson | |
| 5 | * | |
| 6 | * Copyright (c) 2005 Freescale Semiconductor, Inc. | |
| 7 | * | |
| 8 | * This program is free software; you can redistribute it and/or modify it | |
| 9 | * under the terms of the GNU General Public License as published by the | |
| 10 | * Free Software Foundation; either version 2 of the License, or (at your | |
| 11 | * option) any later version. | |
| 12 | * | |
| 13 | */ | |
| 14 | ||
| ef82a306 JL |
15 | #include <linux/kernel.h> |
| 16 | #include <linux/module.h> | |
| 17 | #include <linux/mii.h> | |
| 18 | #include <linux/ethtool.h> | |
| 19 | #include <linux/phy.h> | |
| 20 | ||
| 21 | /* Vitesse Extended Control Register 1 */ | |
| 22 | #define MII_VSC8244_EXT_CON1 0x17 | |
| 23 | #define MII_VSC8244_EXTCON1_INIT 0x0000 | |
| 24 | ||
| 25 | /* Vitesse Interrupt Mask Register */ | |
| 26 | #define MII_VSC8244_IMASK 0x19 | |
| 27 | #define MII_VSC8244_IMASK_IEN 0x8000 | |
| 28 | #define MII_VSC8244_IMASK_SPEED 0x4000 | |
| 29 | #define MII_VSC8244_IMASK_LINK 0x2000 | |
| 30 | #define MII_VSC8244_IMASK_DUPLEX 0x1000 | |
| 31 | #define MII_VSC8244_IMASK_MASK 0xf000 | |
| 32 | ||
| 33 | /* Vitesse Interrupt Status Register */ | |
| 34 | #define MII_VSC8244_ISTAT 0x1a | |
| 35 | #define MII_VSC8244_ISTAT_STATUS 0x8000 | |
| 36 | #define MII_VSC8244_ISTAT_SPEED 0x4000 | |
| 37 | #define MII_VSC8244_ISTAT_LINK 0x2000 | |
| 38 | #define MII_VSC8244_ISTAT_DUPLEX 0x1000 | |
| 39 | ||
| 40 | /* Vitesse Auxiliary Control/Status Register */ | |
| 41 | #define MII_VSC8244_AUX_CONSTAT 0x1c | |
| 42 | #define MII_VSC8244_AUXCONSTAT_INIT 0x0004 | |
| 43 | #define MII_VSC8244_AUXCONSTAT_DUPLEX 0x0020 | |
| 44 | #define MII_VSC8244_AUXCONSTAT_SPEED 0x0018 | |
| 45 | #define MII_VSC8244_AUXCONSTAT_GBIT 0x0010 | |
| 46 | #define MII_VSC8244_AUXCONSTAT_100 0x0008 | |
| 47 | ||
| 48 | MODULE_DESCRIPTION("Vitesse PHY driver"); | |
| 49 | MODULE_AUTHOR("Kriston Carson"); | |
| 50 | MODULE_LICENSE("GPL"); | |
| 51 | ||
| 52 | static int vsc824x_config_init(struct phy_device *phydev) | |
| 53 | { | |
| 54 | int err; | |
| 55 | ||
| 56 | err = phy_write(phydev, MII_VSC8244_AUX_CONSTAT, | |
| 57 | MII_VSC8244_AUXCONSTAT_INIT); | |
| 58 | if (err < 0) | |
| 59 | return err; | |
| 60 | ||
| 61 | err = phy_write(phydev, MII_VSC8244_EXT_CON1, | |
| 62 | MII_VSC8244_EXTCON1_INIT); | |
| 63 | return err; | |
| 64 | } | |
| 65 | ||
| 66 | static int vsc824x_ack_interrupt(struct phy_device *phydev) | |
| 67 | { | |
| 68 | int err = phy_read(phydev, MII_VSC8244_ISTAT); | |
| 69 | ||
| 70 | return (err < 0) ? err : 0; | |
| 71 | } | |
| 72 | ||
| 73 | static int vsc824x_config_intr(struct phy_device *phydev) | |
| 74 | { | |
| 75 | int err; | |
| 76 | ||
| 77 | if (phydev->interrupts == PHY_INTERRUPT_ENABLED) | |
| 78 | err = phy_write(phydev, MII_VSC8244_IMASK, | |
| 79 | MII_VSC8244_IMASK_MASK); | |
| 80 | else | |
| 81 | err = phy_write(phydev, MII_VSC8244_IMASK, 0); | |
| 82 | return err; | |
| 83 | } | |
| 84 | ||
| 85 | /* Vitesse 824x */ | |
| 86 | static struct phy_driver vsc8244_driver = { | |
| 87 | .phy_id = 0x000fc6c2, | |
| 88 | .name = "Vitesse VSC8244", | |
| 89 | .phy_id_mask = 0x000fffc0, | |
| 90 | .features = PHY_GBIT_FEATURES, | |
| 91 | .flags = PHY_HAS_INTERRUPT, | |
| 92 | .config_init = &vsc824x_config_init, | |
| 93 | .config_aneg = &genphy_config_aneg, | |
| 94 | .read_status = &genphy_read_status, | |
| 95 | .ack_interrupt = &vsc824x_ack_interrupt, | |
| 96 | .config_intr = &vsc824x_config_intr, | |
| 97 | .driver = { .owner = THIS_MODULE,}, | |
| 98 | }; | |
| 99 | ||
| 100 | static int __init vsc8244_init(void) | |
| 101 | { | |
| 102 | return phy_driver_register(&vsc8244_driver); | |
| 103 | } | |
| 104 | ||
| 105 | static void __exit vsc8244_exit(void) | |
| 106 | { | |
| 107 | phy_driver_unregister(&vsc8244_driver); | |
| 108 | } | |
| 109 | ||
| 110 | module_init(vsc8244_init); | |
| 111 | module_exit(vsc8244_exit); |