1 // SPDX-License-Identifier: GPL-2.0+
5 * Copyright 2010-2011 Freescale Semiconductor, Inc.
7 * (C) 2012 NetModule AG, David Andrey, added KSZ9031
16 static struct phy_driver KSZ804_driver = {
17 .name = "Micrel KSZ804",
20 .features = PHY_BASIC_FEATURES,
21 .config = &genphy_config,
22 .startup = &genphy_startup,
23 .shutdown = &genphy_shutdown,
26 #define MII_KSZPHY_OMSO 0x16
27 #define KSZPHY_OMSO_B_CAST_OFF (1 << 9)
29 static int ksz_genconfig_bcastoff(struct phy_device *phydev)
33 ret = phy_read(phydev, MDIO_DEVAD_NONE, MII_KSZPHY_OMSO);
37 ret = phy_write(phydev, MDIO_DEVAD_NONE, MII_KSZPHY_OMSO,
38 ret | KSZPHY_OMSO_B_CAST_OFF);
42 return genphy_config(phydev);
45 static struct phy_driver KSZ8031_driver = {
46 .name = "Micrel KSZ8021/KSZ8031",
49 .features = PHY_BASIC_FEATURES,
50 .config = &ksz_genconfig_bcastoff,
51 .startup = &genphy_startup,
52 .shutdown = &genphy_shutdown,
58 #define MII_KSZ8051_PHY_OMSO 0x16
59 #define MII_KSZ8051_PHY_OMSO_NAND_TREE_ON (1 << 5)
61 static int ksz8051_config(struct phy_device *phydev)
65 /* Disable NAND-tree */
66 val = phy_read(phydev, MDIO_DEVAD_NONE, MII_KSZ8051_PHY_OMSO);
67 val &= ~MII_KSZ8051_PHY_OMSO_NAND_TREE_ON;
68 phy_write(phydev, MDIO_DEVAD_NONE, MII_KSZ8051_PHY_OMSO, val);
70 return genphy_config(phydev);
73 static struct phy_driver KSZ8051_driver = {
74 .name = "Micrel KSZ8051",
77 .features = PHY_BASIC_FEATURES,
78 .config = &ksz8051_config,
79 .startup = &genphy_startup,
80 .shutdown = &genphy_shutdown,
83 static struct phy_driver KSZ8081_driver = {
84 .name = "Micrel KSZ8081",
87 .features = PHY_BASIC_FEATURES,
88 .config = &ksz_genconfig_bcastoff,
89 .startup = &genphy_startup,
90 .shutdown = &genphy_shutdown,
97 static unsigned short smireg_to_phy(unsigned short reg)
99 return ((reg & 0xc0) >> 3) + 0x06 + ((reg & 0x20) >> 5);
102 static unsigned short smireg_to_reg(unsigned short reg)
107 static void ksz8895_write_smireg(struct phy_device *phydev, int smireg, int val)
109 phydev->bus->write(phydev->bus, smireg_to_phy(smireg), MDIO_DEVAD_NONE,
110 smireg_to_reg(smireg), val);
114 static int ksz8895_read_smireg(struct phy_device *phydev, int smireg)
116 return phydev->bus->read(phydev->bus, smireg_to_phy(smireg),
117 MDIO_DEVAD_NONE, smireg_to_reg(smireg));
121 int ksz8895_config(struct phy_device *phydev)
123 /* we are connected directly to the switch without
124 * dedicated PHY. SCONF1 == 001 */
126 phydev->duplex = DUPLEX_FULL;
127 phydev->speed = SPEED_100;
129 /* Force the switch to start */
130 ksz8895_write_smireg(phydev, 1, 1);
135 static int ksz8895_startup(struct phy_device *phydev)
140 static struct phy_driver ksz8895_driver = {
141 .name = "Micrel KSZ8895/KSZ8864",
144 .features = PHY_BASIC_FEATURES,
145 .config = &ksz8895_config,
146 .startup = &ksz8895_startup,
147 .shutdown = &genphy_shutdown,
150 /* Micrel used the exact same part number for the KSZ9021. */
151 static struct phy_driver KS8721_driver = {
152 .name = "Micrel KS8721BL",
155 .features = PHY_BASIC_FEATURES,
156 .config = &genphy_config,
157 .startup = &genphy_startup,
158 .shutdown = &genphy_shutdown,
161 int ksz886x_config(struct phy_device *phydev)
163 /* we are connected directly to the switch without
166 phydev->duplex = DUPLEX_FULL;
167 phydev->speed = SPEED_100;
171 static int ksz886x_startup(struct phy_device *phydev)
176 static struct phy_driver ksz886x_driver = {
177 .name = "Micrel KSZ886x Switch",
180 .features = PHY_BASIC_FEATURES,
181 .config = &ksz886x_config,
182 .startup = &ksz886x_startup,
183 .shutdown = &genphy_shutdown,
186 int phy_micrel_ksz8xxx_init(void)
188 phy_register(&KSZ804_driver);
189 phy_register(&KSZ8031_driver);
190 phy_register(&KSZ8051_driver);
191 phy_register(&KSZ8081_driver);
192 phy_register(&KS8721_driver);
193 phy_register(&ksz8895_driver);
194 phy_register(&ksz886x_driver);