drivers/net/phy/smsc.c

   1 /*
   2  * SMSC PHY drivers
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  *
   6  * Base code from drivers/net/phy/davicom.c
   7  *   Copyright 2010-2011 Freescale Semiconductor, Inc.
   8  *   author Andy Fleming
   9  *
  10  * Some code get from linux kenrel
  11  * Copyright (c) 2006 Herbert Valerio Riedel <hvr@gnu.org>
  12  */
  13 #include <miiphy.h>
  14
  15 static int smsc_parse_status(struct phy_device *phydev)
  16 {
  17         int mii_reg;
  18
  19         mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMSR);
  20
  21         if (mii_reg & (BMSR_100FULL | BMSR_100HALF))
  22                 phydev->speed = SPEED_100;
  23         else
  24                 phydev->speed = SPEED_10;
  25
  26         if (mii_reg & (BMSR_10FULL | BMSR_100FULL))
  27                 phydev->duplex = DUPLEX_FULL;
  28         else
  29                 phydev->duplex = DUPLEX_HALF;
  30
  31         return 0;
  32 }
  33
  34 static int smsc_startup(struct phy_device *phydev)
  35 {
  36         genphy_update_link(phydev);
  37         smsc_parse_status(phydev);
  38         return 0;
  39 }
  40
  41 static struct phy_driver lan8700_driver = {
  42         .name = "SMSC LAN8700",
  43         .uid = 0x0007c0c0,
  44         .mask = 0xffff0,
  45         .features = PHY_BASIC_FEATURES,
  46         .config = &genphy_config_aneg,
  47         .startup = &smsc_startup,
  48         .shutdown = &genphy_shutdown,
  49 };
  50
  51 static struct phy_driver lan911x_driver = {
  52         .name = "SMSC LAN911x Internal PHY",
  53         .uid = 0x0007c0d0,
  54         .mask = 0xffff0,
  55         .features = PHY_BASIC_FEATURES,
  56         .config = &genphy_config_aneg,
  57         .startup = &smsc_startup,
  58         .shutdown = &genphy_shutdown,
  59 };
  60
  61 static struct phy_driver lan8710_driver = {
  62         .name = "SMSC LAN8710/LAN8720",
  63         .uid = 0x0007c0f0,
  64         .mask = 0xffff0,
  65         .features = PHY_BASIC_FEATURES,
  66         .config = &genphy_config_aneg,
  67         .startup = &smsc_startup,
  68         .shutdown = &genphy_shutdown,
  69 };
  70
  71 int phy_smsc_init(void)
  72 {
  73         phy_register(&lan8710_driver);
  74         phy_register(&lan911x_driver);
  75         phy_register(&lan8700_driver);
  76
  77         return 0;
  78 }