git.sur5r.net Git - u-boot/blob - drivers/net/phy/micrel_ksz8xxx.c

   1 /*
   2  * Micrel PHY drivers
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  *
   6  * Copyright 2010-2011 Freescale Semiconductor, Inc.
   7  * author Andy Fleming
   8  * (C) 2012 NetModule AG, David Andrey, added KSZ9031
   9  */
  10 #include <config.h>
  11 #include <common.h>
  12 #include <dm.h>
  13 #include <errno.h>
  14 #include <fdtdec.h>
  15 #include <micrel.h>
  16 #include <phy.h>
  17
  18 static struct phy_driver KSZ804_driver = {
  19         .name = "Micrel KSZ804",
  20         .uid = 0x221510,
  21         .mask = 0xfffff0,
  22         .features = PHY_BASIC_FEATURES,
  23         .config = &genphy_config,
  24         .startup = &genphy_startup,
  25         .shutdown = &genphy_shutdown,
  26 };
  27
  28 #define MII_KSZPHY_OMSO         0x16
  29 #define KSZPHY_OMSO_B_CAST_OFF  (1 << 9)
  30
  31 static int ksz_genconfig_bcastoff(struct phy_device *phydev)
  32 {
  33         int ret;
  34
  35         ret = phy_read(phydev, MDIO_DEVAD_NONE, MII_KSZPHY_OMSO);
  36         if (ret < 0)
  37                 return ret;
  38
  39         ret = phy_write(phydev, MDIO_DEVAD_NONE, MII_KSZPHY_OMSO,
  40                         ret | KSZPHY_OMSO_B_CAST_OFF);
  41         if (ret < 0)
  42                 return ret;
  43
  44         return genphy_config(phydev);
  45 }
  46
  47 static struct phy_driver KSZ8031_driver = {
  48         .name = "Micrel KSZ8021/KSZ8031",
  49         .uid = 0x221550,
  50         .mask = 0xfffff0,
  51         .features = PHY_BASIC_FEATURES,
  52         .config = &ksz_genconfig_bcastoff,
  53         .startup = &genphy_startup,
  54         .shutdown = &genphy_shutdown,
  55 };
  56
  57 /**
  58  * KSZ8051
  59  */
  60 #define MII_KSZ8051_PHY_OMSO                    0x16
  61 #define MII_KSZ8051_PHY_OMSO_NAND_TREE_ON       (1 << 5)
  62
  63 static int ksz8051_config(struct phy_device *phydev)
  64 {
  65         unsigned val;
  66
  67         /* Disable NAND-tree */
  68         val = phy_read(phydev, MDIO_DEVAD_NONE, MII_KSZ8051_PHY_OMSO);
  69         val &= ~MII_KSZ8051_PHY_OMSO_NAND_TREE_ON;
  70         phy_write(phydev, MDIO_DEVAD_NONE, MII_KSZ8051_PHY_OMSO, val);
  71
  72         return genphy_config(phydev);
  73 }
  74
  75 static struct phy_driver KSZ8051_driver = {
  76         .name = "Micrel KSZ8051",
  77         .uid = 0x221550,
  78         .mask = 0xfffff0,
  79         .features = PHY_BASIC_FEATURES,
  80         .config = &ksz8051_config,
  81         .startup = &genphy_startup,
  82         .shutdown = &genphy_shutdown,
  83 };
  84
  85 static struct phy_driver KSZ8081_driver = {
  86         .name = "Micrel KSZ8081",
  87         .uid = 0x221560,
  88         .mask = 0xfffff0,
  89         .features = PHY_BASIC_FEATURES,
  90         .config = &ksz_genconfig_bcastoff,
  91         .startup = &genphy_startup,
  92         .shutdown = &genphy_shutdown,
  93 };
  94
  95 /**
  96  * KSZ8895
  97  */
  98
  99 static unsigned short smireg_to_phy(unsigned short reg)
 100 {
 101         return ((reg & 0xc0) >> 3) + 0x06 + ((reg & 0x20) >> 5);
 102 }
 103
 104 static unsigned short smireg_to_reg(unsigned short reg)
 105 {
 106         return reg & 0x1F;
 107 }
 108
 109 static void ksz8895_write_smireg(struct phy_device *phydev, int smireg, int val)
 110 {
 111         phydev->bus->write(phydev->bus, smireg_to_phy(smireg), MDIO_DEVAD_NONE,
 112                                                 smireg_to_reg(smireg), val);
 113 }
 114
 115 #if 0
 116 static int ksz8895_read_smireg(struct phy_device *phydev, int smireg)
 117 {
 118         return phydev->bus->read(phydev->bus, smireg_to_phy(smireg),
 119                                         MDIO_DEVAD_NONE, smireg_to_reg(smireg));
 120 }
 121 #endif
 122
 123 int ksz8895_config(struct phy_device *phydev)
 124 {
 125         /* we are connected directly to the switch without
 126          * dedicated PHY. SCONF1 == 001 */
 127         phydev->link = 1;
 128         phydev->duplex = DUPLEX_FULL;
 129         phydev->speed = SPEED_100;
 130
 131         /* Force the switch to start */
 132         ksz8895_write_smireg(phydev, 1, 1);
 133
 134         return 0;
 135 }
 136
 137 static int ksz8895_startup(struct phy_device *phydev)
 138 {
 139         return 0;
 140 }
 141
 142 static struct phy_driver ksz8895_driver = {
 143         .name = "Micrel KSZ8895/KSZ8864",
 144         .uid  = 0x221450,
 145         .mask = 0xffffe1,
 146         .features = PHY_BASIC_FEATURES,
 147         .config   = &ksz8895_config,
 148         .startup  = &ksz8895_startup,
 149         .shutdown = &genphy_shutdown,
 150 };
 151
 152 /* Micrel used the exact same part number for the KSZ9021. */
 153 static struct phy_driver KS8721_driver = {
 154         .name = "Micrel KS8721BL",
 155         .uid = 0x221610,
 156         .mask = 0xfffff0,
 157         .features = PHY_BASIC_FEATURES,
 158         .config = &genphy_config,
 159         .startup = &genphy_startup,
 160         .shutdown = &genphy_shutdown,
 161 };
 162
 163 int ksz886x_config(struct phy_device *phydev)
 164 {
 165         /* we are connected directly to the switch without
 166          * dedicated PHY. */
 167         phydev->link = 1;
 168         phydev->duplex = DUPLEX_FULL;
 169         phydev->speed = SPEED_100;
 170         return 0;
 171 }
 172
 173 static int ksz886x_startup(struct phy_device *phydev)
 174 {
 175         return 0;
 176 }
 177
 178 static struct phy_driver ksz886x_driver = {
 179         .name = "Micrel KSZ886x Switch",
 180         .uid  = 0x00221430,
 181         .mask = 0xfffff0,
 182         .features = PHY_BASIC_FEATURES,
 183         .config = &ksz886x_config,
 184         .startup = &ksz886x_startup,
 185         .shutdown = &genphy_shutdown,
 186 };
 187
 188 int phy_micrel_ksz8xxx_init(void)
 189 {
 190         phy_register(&KSZ804_driver);
 191         phy_register(&KSZ8031_driver);
 192         phy_register(&KSZ8051_driver);
 193         phy_register(&KSZ8081_driver);
 194         phy_register(&KS8721_driver);
 195         phy_register(&ksz8895_driver);
 196         phy_register(&ksz886x_driver);
 197         return 0;
 198 }