drivers/net/phy/smsc.c

   1 /*
   2  * SMSC PHY drivers
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License as
   6  * published by the Free Software Foundation; either version 2 of
   7  * the License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  17  * MA 02111-1307 USA
  18  *
  19  * Base code from drivers/net/phy/davicom.c
  20  *   Copyright 2010-2011 Freescale Semiconductor, Inc.
  21  *   author Andy Fleming
  22  *
  23  * Some code get from linux kenrel
  24  * Copyright (c) 2006 Herbert Valerio Riedel <hvr@gnu.org>
  25  *
  26  */
  27 #include <miiphy.h>
  28
  29 static int smsc_parse_status(struct phy_device *phydev)
  30 {
  31         int mii_reg;
  32
  33         mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMSR);
  34
  35         if (mii_reg & (BMSR_100FULL | BMSR_100HALF))
  36                 phydev->speed = SPEED_100;
  37         else
  38                 phydev->speed = SPEED_10;
  39
  40         if (mii_reg & (BMSR_10FULL | BMSR_100FULL))
  41                 phydev->duplex = DUPLEX_FULL;
  42         else
  43                 phydev->duplex = DUPLEX_HALF;
  44
  45         return 0;
  46 }
  47
  48 static int smsc_startup(struct phy_device *phydev)
  49 {
  50         genphy_update_link(phydev);
  51         smsc_parse_status(phydev);
  52         return 0;
  53 }
  54
  55 static struct phy_driver lan8700_driver = {
  56         .name = "SMSC LAN8700",
  57         .uid = 0x0007c0c0,
  58         .mask = 0xffff0,
  59         .features = PHY_BASIC_FEATURES,
  60         .config = &genphy_config_aneg,
  61         .startup = &smsc_startup,
  62         .shutdown = &genphy_shutdown,
  63 };
  64
  65 static struct phy_driver lan911x_driver = {
  66         .name = "SMSC LAN911x Internal PHY",
  67         .uid = 0x0007c0d0,
  68         .mask = 0xffff0,
  69         .features = PHY_BASIC_FEATURES,
  70         .config = &genphy_config_aneg,
  71         .startup = &smsc_startup,
  72         .shutdown = &genphy_shutdown,
  73 };
  74
  75 static struct phy_driver lan8710_driver = {
  76         .name = "SMSC LAN8710/LAN8720",
  77         .uid = 0x0007c0f0,
  78         .mask = 0xffff0,
  79         .features = PHY_GBIT_FEATURES,
  80         .config = &genphy_config_aneg,
  81         .startup = &smsc_startup,
  82         .shutdown = &genphy_shutdown,
  83 };
  84
  85 int phy_smsc_init(void)
  86 {
  87         phy_register(&lan8710_driver);
  88         phy_register(&lan911x_driver);
  89         phy_register(&lan8700_driver);
  90
  91         return 0;
  92 }