1 // SPDX-License-Identifier: GPL-2.0+
5 * Copyright 2010-2011 Freescale Semiconductor, Inc.
7 * (C) 2012 NetModule AG, David Andrey, added KSZ9031
15 #include <linux/bitops.h>
17 static struct phy_driver KSZ804_driver = {
18 .name = "Micrel KSZ804",
21 .features = PHY_BASIC_FEATURES,
22 .config = &genphy_config,
23 .startup = &genphy_startup,
24 .shutdown = &genphy_shutdown,
27 #define MII_KSZPHY_OMSO 0x16
28 #define KSZPHY_OMSO_FACTORY_TEST BIT(15)
29 #define KSZPHY_OMSO_B_CAST_OFF (1 << 9)
31 static int ksz_genconfig_bcastoff(struct phy_device *phydev)
35 ret = phy_read(phydev, MDIO_DEVAD_NONE, MII_KSZPHY_OMSO);
39 ret = phy_write(phydev, MDIO_DEVAD_NONE, MII_KSZPHY_OMSO,
40 ret | KSZPHY_OMSO_B_CAST_OFF);
44 return genphy_config(phydev);
47 static struct phy_driver KSZ8031_driver = {
48 .name = "Micrel KSZ8021/KSZ8031",
51 .features = PHY_BASIC_FEATURES,
52 .config = &ksz_genconfig_bcastoff,
53 .startup = &genphy_startup,
54 .shutdown = &genphy_shutdown,
60 #define MII_KSZ8051_PHY_OMSO 0x16
61 #define MII_KSZ8051_PHY_OMSO_NAND_TREE_ON (1 << 5)
63 static int ksz8051_config(struct phy_device *phydev)
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);
72 return genphy_config(phydev);
75 static struct phy_driver KSZ8051_driver = {
76 .name = "Micrel KSZ8051",
79 .features = PHY_BASIC_FEATURES,
80 .config = &ksz8051_config,
81 .startup = &genphy_startup,
82 .shutdown = &genphy_shutdown,
85 static int ksz8081_config(struct phy_device *phydev)
89 ret = phy_read(phydev, MDIO_DEVAD_NONE, MII_KSZPHY_OMSO);
93 ret &= ~KSZPHY_OMSO_FACTORY_TEST;
95 ret = phy_write(phydev, MDIO_DEVAD_NONE, MII_KSZPHY_OMSO,
96 ret | KSZPHY_OMSO_B_CAST_OFF);
100 return genphy_config(phydev);
103 static struct phy_driver KSZ8081_driver = {
104 .name = "Micrel KSZ8081",
107 .features = PHY_BASIC_FEATURES,
108 .config = &ksz8081_config,
109 .startup = &genphy_startup,
110 .shutdown = &genphy_shutdown,
117 static unsigned short smireg_to_phy(unsigned short reg)
119 return ((reg & 0xc0) >> 3) + 0x06 + ((reg & 0x20) >> 5);
122 static unsigned short smireg_to_reg(unsigned short reg)
127 static void ksz8895_write_smireg(struct phy_device *phydev, int smireg, int val)
129 phydev->bus->write(phydev->bus, smireg_to_phy(smireg), MDIO_DEVAD_NONE,
130 smireg_to_reg(smireg), val);
134 static int ksz8895_read_smireg(struct phy_device *phydev, int smireg)
136 return phydev->bus->read(phydev->bus, smireg_to_phy(smireg),
137 MDIO_DEVAD_NONE, smireg_to_reg(smireg));
141 int ksz8895_config(struct phy_device *phydev)
143 /* we are connected directly to the switch without
144 * dedicated PHY. SCONF1 == 001 */
146 phydev->duplex = DUPLEX_FULL;
147 phydev->speed = SPEED_100;
149 /* Force the switch to start */
150 ksz8895_write_smireg(phydev, 1, 1);
155 static int ksz8895_startup(struct phy_device *phydev)
160 static struct phy_driver ksz8895_driver = {
161 .name = "Micrel KSZ8895/KSZ8864",
164 .features = PHY_BASIC_FEATURES,
165 .config = &ksz8895_config,
166 .startup = &ksz8895_startup,
167 .shutdown = &genphy_shutdown,
170 /* Micrel used the exact same model number for the KSZ9021,
171 * so the revision number is used to distinguish them.
173 static struct phy_driver KS8721_driver = {
174 .name = "Micrel KS8721BL",
177 .features = PHY_BASIC_FEATURES,
178 .config = &genphy_config,
179 .startup = &genphy_startup,
180 .shutdown = &genphy_shutdown,
183 int ksz886x_config(struct phy_device *phydev)
185 /* we are connected directly to the switch without
188 phydev->duplex = DUPLEX_FULL;
189 phydev->speed = SPEED_100;
193 static int ksz886x_startup(struct phy_device *phydev)
198 static struct phy_driver ksz886x_driver = {
199 .name = "Micrel KSZ886x Switch",
202 .features = PHY_BASIC_FEATURES,
203 .config = &ksz886x_config,
204 .startup = &ksz886x_startup,
205 .shutdown = &genphy_shutdown,
208 int phy_micrel_ksz8xxx_init(void)
210 phy_register(&KSZ804_driver);
211 phy_register(&KSZ8031_driver);
212 phy_register(&KSZ8051_driver);
213 phy_register(&KSZ8081_driver);
214 phy_register(&KS8721_driver);
215 phy_register(&ksz8895_driver);
216 phy_register(&ksz886x_driver);