drivers/net/phy/smsc.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * SMSC PHY drivers
   4  *
   5  * Base code from drivers/net/phy/davicom.c
   6  *   Copyright 2010-2011 Freescale Semiconductor, Inc.
   7  *   author Andy Fleming
   8  *
   9  * Some code copied from linux kernel
  10  * Copyright (c) 2006 Herbert Valerio Riedel <hvr@gnu.org>
  11  */
  12 #include <miiphy.h>
  13
  14 /* This code does not check the partner abilities. */
  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         int ret;
  37
  38         ret = genphy_update_link(phydev);
  39         if (ret)
  40                 return ret;
  41
  42         return smsc_parse_status(phydev);
  43 }
  44
  45 static struct phy_driver lan8700_driver = {
  46         .name = "SMSC LAN8700",
  47         .uid = 0x0007c0c0,
  48         .mask = 0xffff0,
  49         .features = PHY_BASIC_FEATURES,
  50         .config = &genphy_config_aneg,
  51         .startup = &smsc_startup,
  52         .shutdown = &genphy_shutdown,
  53 };
  54
  55 static struct phy_driver lan911x_driver = {
  56         .name = "SMSC LAN911x Internal PHY",
  57         .uid = 0x0007c0d0,
  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 lan8710_driver = {
  66         .name = "SMSC LAN8710/LAN8720",
  67         .uid = 0x0007c0f0,
  68         .mask = 0xffff0,
  69         .features = PHY_BASIC_FEATURES,
  70         .config = &genphy_config_aneg,
  71         .startup = &genphy_startup,
  72         .shutdown = &genphy_shutdown,
  73 };
  74
  75 static struct phy_driver lan8740_driver = {
  76         .name = "SMSC LAN8740",
  77         .uid = 0x0007c110,
  78         .mask = 0xffff0,
  79         .features = PHY_BASIC_FEATURES,
  80         .config = &genphy_config_aneg,
  81         .startup = &genphy_startup,
  82         .shutdown = &genphy_shutdown,
  83 };
  84
  85 static struct phy_driver lan8741_driver = {
  86         .name = "SMSC LAN8741",
  87         .uid = 0x0007c120,
  88         .mask = 0xffff0,
  89         .features = PHY_BASIC_FEATURES,
  90         .config = &genphy_config_aneg,
  91         .startup = &genphy_startup,
  92         .shutdown = &genphy_shutdown,
  93 };
  94
  95 static struct phy_driver lan8742_driver = {
  96         .name = "SMSC LAN8742",
  97         .uid = 0x0007c130,
  98         .mask = 0xffff0,
  99         .features = PHY_BASIC_FEATURES,
 100         .config = &genphy_config_aneg,
 101         .startup = &genphy_startup,
 102         .shutdown = &genphy_shutdown,
 103 };
 104
 105 int phy_smsc_init(void)
 106 {
 107         phy_register(&lan8710_driver);
 108         phy_register(&lan911x_driver);
 109         phy_register(&lan8700_driver);
 110         phy_register(&lan8740_driver);
 111         phy_register(&lan8741_driver);
 112         phy_register(&lan8742_driver);
 113
 114         return 0;
 115 }