drivers/net/phy/smsc.c

   1 /*
   2  * drivers/net/phy/smsc.c
   3  *
   4  * Driver for SMSC PHYs
   5  *
   6  * Author: Herbert Valerio Riedel
   7  *
   8  * Copyright (c) 2006 Herbert Valerio Riedel <hvr@gnu.org>
   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  * Support added for SMSC LAN8187 and LAN8700 by steve.glendinning@smsc.com
  16  *
  17  */
  18
  19 #include <linux/kernel.h>
  20 #include <linux/module.h>
  21 #include <linux/mii.h>
  22 #include <linux/ethtool.h>
  23 #include <linux/phy.h>
  24 #include <linux/netdevice.h>
  25 #include <linux/smscphy.h>
  26
  27 static int smsc_phy_config_intr(struct phy_device *phydev)
  28 {
  29         int rc = phy_write (phydev, MII_LAN83C185_IM,
  30                         ((PHY_INTERRUPT_ENABLED == phydev->interrupts)
  31                         ? MII_LAN83C185_ISF_INT_PHYLIB_EVENTS
  32                         : 0));
  33
  34         return rc < 0 ? rc : 0;
  35 }
  36
  37 static int smsc_phy_ack_interrupt(struct phy_device *phydev)
  38 {
  39         int rc = phy_read (phydev, MII_LAN83C185_ISF);
  40
  41         return rc < 0 ? rc : 0;
  42 }
  43
  44 static int smsc_phy_config_init(struct phy_device *phydev)
  45 {
  46         int rc = phy_read(phydev, MII_LAN83C185_CTRL_STATUS);
  47         if (rc < 0)
  48                 return rc;
  49
  50         /* Enable energy detect mode for this SMSC Transceivers */
  51         rc = phy_write(phydev, MII_LAN83C185_CTRL_STATUS,
  52                        rc | MII_LAN83C185_EDPWRDOWN);
  53         if (rc < 0)
  54                 return rc;
  55
  56         return smsc_phy_ack_interrupt (phydev);
  57 }
  58
  59 static int lan911x_config_init(struct phy_device *phydev)
  60 {
  61         return smsc_phy_ack_interrupt(phydev);
  62 }
  63
  64 static struct phy_driver lan83c185_driver = {
  65         .phy_id         = 0x0007c0a0, /* OUI=0x00800f, Model#=0x0a */
  66         .phy_id_mask    = 0xfffffff0,
  67         .name           = "SMSC LAN83C185",
  68
  69         .features       = (PHY_BASIC_FEATURES | SUPPORTED_Pause
  70                                 | SUPPORTED_Asym_Pause),
  71         .flags          = PHY_HAS_INTERRUPT | PHY_HAS_MAGICANEG,
  72
  73         /* basic functions */
  74         .config_aneg    = genphy_config_aneg,
  75         .read_status    = genphy_read_status,
  76         .config_init    = smsc_phy_config_init,
  77
  78         /* IRQ related */
  79         .ack_interrupt  = smsc_phy_ack_interrupt,
  80         .config_intr    = smsc_phy_config_intr,
  81
  82         .suspend        = genphy_suspend,
  83         .resume         = genphy_resume,
  84
  85         .driver         = { .owner = THIS_MODULE, }
  86 };
  87
  88 static struct phy_driver lan8187_driver = {
  89         .phy_id         = 0x0007c0b0, /* OUI=0x00800f, Model#=0x0b */
  90         .phy_id_mask    = 0xfffffff0,
  91         .name           = "SMSC LAN8187",
  92
  93         .features       = (PHY_BASIC_FEATURES | SUPPORTED_Pause
  94                                 | SUPPORTED_Asym_Pause),
  95         .flags          = PHY_HAS_INTERRUPT | PHY_HAS_MAGICANEG,
  96
  97         /* basic functions */
  98         .config_aneg    = genphy_config_aneg,
  99         .read_status    = genphy_read_status,
 100         .config_init    = smsc_phy_config_init,
 101
 102         /* IRQ related */
 103         .ack_interrupt  = smsc_phy_ack_interrupt,
 104         .config_intr    = smsc_phy_config_intr,
 105
 106         .suspend        = genphy_suspend,
 107         .resume         = genphy_resume,
 108
 109         .driver         = { .owner = THIS_MODULE, }
 110 };
 111
 112 static struct phy_driver lan8700_driver = {
 113         .phy_id         = 0x0007c0c0, /* OUI=0x00800f, Model#=0x0c */
 114         .phy_id_mask    = 0xfffffff0,
 115         .name           = "SMSC LAN8700",
 116
 117         .features       = (PHY_BASIC_FEATURES | SUPPORTED_Pause
 118                                 | SUPPORTED_Asym_Pause),
 119         .flags          = PHY_HAS_INTERRUPT | PHY_HAS_MAGICANEG,
 120
 121         /* basic functions */
 122         .config_aneg    = genphy_config_aneg,
 123         .read_status    = genphy_read_status,
 124         .config_init    = smsc_phy_config_init,
 125
 126         /* IRQ related */
 127         .ack_interrupt  = smsc_phy_ack_interrupt,
 128         .config_intr    = smsc_phy_config_intr,
 129
 130         .suspend        = genphy_suspend,
 131         .resume         = genphy_resume,
 132
 133         .driver         = { .owner = THIS_MODULE, }
 134 };
 135
 136 static struct phy_driver lan911x_int_driver = {
 137         .phy_id         = 0x0007c0d0, /* OUI=0x00800f, Model#=0x0d */
 138         .phy_id_mask    = 0xfffffff0,
 139         .name           = "SMSC LAN911x Internal PHY",
 140
 141         .features       = (PHY_BASIC_FEATURES | SUPPORTED_Pause
 142                                 | SUPPORTED_Asym_Pause),
 143         .flags          = PHY_HAS_INTERRUPT | PHY_HAS_MAGICANEG,
 144
 145         /* basic functions */
 146         .config_aneg    = genphy_config_aneg,
 147         .read_status    = genphy_read_status,
 148         .config_init    = lan911x_config_init,
 149
 150         /* IRQ related */
 151         .ack_interrupt  = smsc_phy_ack_interrupt,
 152         .config_intr    = smsc_phy_config_intr,
 153
 154         .suspend        = genphy_suspend,
 155         .resume         = genphy_resume,
 156
 157         .driver         = { .owner = THIS_MODULE, }
 158 };
 159
 160 static struct phy_driver lan8710_driver = {
 161         .phy_id         = 0x0007c0f0, /* OUI=0x00800f, Model#=0x0f */
 162         .phy_id_mask    = 0xfffffff0,
 163         .name           = "SMSC LAN8710/LAN8720",
 164
 165         .features       = (PHY_BASIC_FEATURES | SUPPORTED_Pause
 166                                 | SUPPORTED_Asym_Pause),
 167         .flags          = PHY_HAS_INTERRUPT | PHY_HAS_MAGICANEG,
 168
 169         /* basic functions */
 170         .config_aneg    = genphy_config_aneg,
 171         .read_status    = genphy_read_status,
 172         .config_init    = smsc_phy_config_init,
 173
 174         /* IRQ related */
 175         .ack_interrupt  = smsc_phy_ack_interrupt,
 176         .config_intr    = smsc_phy_config_intr,
 177
 178         .suspend        = genphy_suspend,
 179         .resume         = genphy_resume,
 180
 181         .driver         = { .owner = THIS_MODULE, }
 182 };
 183
 184 static int __init smsc_init(void)
 185 {
 186         int ret;
 187
 188         ret = phy_driver_register (&lan83c185_driver);
 189         if (ret)
 190                 goto err1;
 191
 192         ret = phy_driver_register (&lan8187_driver);
 193         if (ret)
 194                 goto err2;
 195
 196         ret = phy_driver_register (&lan8700_driver);
 197         if (ret)
 198                 goto err3;
 199
 200         ret = phy_driver_register (&lan911x_int_driver);
 201         if (ret)
 202                 goto err4;
 203
 204         ret = phy_driver_register (&lan8710_driver);
 205         if (ret)
 206                 goto err5;
 207
 208         return 0;
 209
 210 err5:
 211         phy_driver_unregister (&lan911x_int_driver);
 212 err4:
 213         phy_driver_unregister (&lan8700_driver);
 214 err3:
 215         phy_driver_unregister (&lan8187_driver);
 216 err2:
 217         phy_driver_unregister (&lan83c185_driver);
 218 err1:
 219         return ret;
 220 }
 221
 222 static void __exit smsc_exit(void)
 223 {
 224         phy_driver_unregister (&lan8710_driver);
 225         phy_driver_unregister (&lan911x_int_driver);
 226         phy_driver_unregister (&lan8700_driver);
 227         phy_driver_unregister (&lan8187_driver);
 228         phy_driver_unregister (&lan83c185_driver);
 229 }
 230
 231 MODULE_DESCRIPTION("SMSC PHY driver");
 232 MODULE_AUTHOR("Herbert Valerio Riedel");
 233 MODULE_LICENSE("GPL");
 234
 235 module_init(smsc_init);
 236 module_exit(smsc_exit);
 237
 238 static struct mdio_device_id __maybe_unused smsc_tbl[] = {
 239         { 0x0007c0a0, 0xfffffff0 },
 240         { 0x0007c0b0, 0xfffffff0 },
 241         { 0x0007c0c0, 0xfffffff0 },
 242         { 0x0007c0d0, 0xfffffff0 },
 243         { 0x0007c0f0, 0xfffffff0 },
 244         { }
 245 };
 246
 247 MODULE_DEVICE_TABLE(mdio, smsc_tbl);