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