diff options
Diffstat (limited to 'drivers/net/phy/micrel_ksz8xxx.c')
| -rw-r--r-- | drivers/net/phy/micrel_ksz8xxx.c | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/drivers/net/phy/micrel_ksz8xxx.c b/drivers/net/phy/micrel_ksz8xxx.c new file mode 100644 index 0000000..ec628bb --- /dev/null +++ b/drivers/net/phy/micrel_ksz8xxx.c @@ -0,0 +1,200 @@ +/* + * Micrel PHY drivers + * + * SPDX-License-Identifier: GPL-2.0+ + * + * Copyright 2010-2011 Freescale Semiconductor, Inc. + * author Andy Fleming + * (C) 2012 NetModule AG, David Andrey, added KSZ9031 + */ +#include <config.h> +#include <common.h> +#include <dm.h> +#include <errno.h> +#include <fdtdec.h> +#include <micrel.h> +#include <phy.h> + +DECLARE_GLOBAL_DATA_PTR; + +static struct phy_driver KSZ804_driver = { + .name = "Micrel KSZ804", + .uid = 0x221510, + .mask = 0xfffff0, + .features = PHY_BASIC_FEATURES, + .config = &genphy_config, + .startup = &genphy_startup, + .shutdown = &genphy_shutdown, +}; + +#define MII_KSZPHY_OMSO 0x16 +#define KSZPHY_OMSO_B_CAST_OFF (1 << 9) + +static int ksz_genconfig_bcastoff(struct phy_device *phydev) +{ + int ret; + + ret = phy_read(phydev, MDIO_DEVAD_NONE, MII_KSZPHY_OMSO); + if (ret < 0) + return ret; + + ret = phy_write(phydev, MDIO_DEVAD_NONE, MII_KSZPHY_OMSO, + ret | KSZPHY_OMSO_B_CAST_OFF); + if (ret < 0) + return ret; + + return genphy_config(phydev); +} + +static struct phy_driver KSZ8031_driver = { + .name = "Micrel KSZ8021/KSZ8031", + .uid = 0x221550, + .mask = 0xfffff0, + .features = PHY_BASIC_FEATURES, + .config = &ksz_genconfig_bcastoff, + .startup = &genphy_startup, + .shutdown = &genphy_shutdown, +}; + +/** + * KSZ8051 + */ +#define MII_KSZ8051_PHY_OMSO 0x16 +#define MII_KSZ8051_PHY_OMSO_NAND_TREE_ON (1 << 5) + +static int ksz8051_config(struct phy_device *phydev) +{ + unsigned val; + + /* Disable NAND-tree */ + val = phy_read(phydev, MDIO_DEVAD_NONE, MII_KSZ8051_PHY_OMSO); + val &= ~MII_KSZ8051_PHY_OMSO_NAND_TREE_ON; + phy_write(phydev, MDIO_DEVAD_NONE, MII_KSZ8051_PHY_OMSO, val); + + return genphy_config(phydev); +} + +static struct phy_driver KSZ8051_driver = { + .name = "Micrel KSZ8051", + .uid = 0x221550, + .mask = 0xfffff0, + .features = PHY_BASIC_FEATURES, + .config = &ksz8051_config, + .startup = &genphy_startup, + .shutdown = &genphy_shutdown, +}; + +static struct phy_driver KSZ8081_driver = { + .name = "Micrel KSZ8081", + .uid = 0x221560, + .mask = 0xfffff0, + .features = PHY_BASIC_FEATURES, + .config = &ksz_genconfig_bcastoff, + .startup = &genphy_startup, + .shutdown = &genphy_shutdown, +}; + +/** + * KSZ8895 + */ + +static unsigned short smireg_to_phy(unsigned short reg) +{ + return ((reg & 0xc0) >> 3) + 0x06 + ((reg & 0x20) >> 5); +} + +static unsigned short smireg_to_reg(unsigned short reg) +{ + return reg & 0x1F; +} + +static void ksz8895_write_smireg(struct phy_device *phydev, int smireg, int val) +{ + phydev->bus->write(phydev->bus, smireg_to_phy(smireg), MDIO_DEVAD_NONE, + smireg_to_reg(smireg), val); +} + +#if 0 +static int ksz8895_read_smireg(struct phy_device *phydev, int smireg) +{ + return phydev->bus->read(phydev->bus, smireg_to_phy(smireg), + MDIO_DEVAD_NONE, smireg_to_reg(smireg)); +} +#endif + +int ksz8895_config(struct phy_device *phydev) +{ + /* we are connected directly to the switch without + * dedicated PHY. SCONF1 == 001 */ + phydev->link = 1; + phydev->duplex = DUPLEX_FULL; + phydev->speed = SPEED_100; + + /* Force the switch to start */ + ksz8895_write_smireg(phydev, 1, 1); + + return 0; +} + +static int ksz8895_startup(struct phy_device *phydev) +{ + return 0; +} + +static struct phy_driver ksz8895_driver = { + .name = "Micrel KSZ8895/KSZ8864", + .uid = 0x221450, + .mask = 0xffffe1, + .features = PHY_BASIC_FEATURES, + .config = &ksz8895_config, + .startup = &ksz8895_startup, + .shutdown = &genphy_shutdown, +}; + +/* Micrel used the exact same part number for the KSZ9021. */ +static struct phy_driver KS8721_driver = { + .name = "Micrel KS8721BL", + .uid = 0x221610, + .mask = 0xfffff0, + .features = PHY_BASIC_FEATURES, + .config = &genphy_config, + .startup = &genphy_startup, + .shutdown = &genphy_shutdown, +}; + +int ksz886x_config(struct phy_device *phydev) +{ + /* we are connected directly to the switch without + * dedicated PHY. */ + phydev->link = 1; + phydev->duplex = DUPLEX_FULL; + phydev->speed = SPEED_100; + return 0; +} + +static int ksz886x_startup(struct phy_device *phydev) +{ + return 0; +} + +static struct phy_driver ksz886x_driver = { + .name = "Micrel KSZ886x Switch", + .uid = 0x00221430, + .mask = 0xfffff0, + .features = PHY_BASIC_FEATURES, + .config = &ksz886x_config, + .startup = &ksz886x_startup, + .shutdown = &genphy_shutdown, +}; + +int phy_micrel_ksz8xxx_init(void) +{ + phy_register(&KSZ804_driver); + phy_register(&KSZ8031_driver); + phy_register(&KSZ8051_driver); + phy_register(&KSZ8081_driver); + phy_register(&KS8721_driver); + phy_register(&ksz8895_driver); + phy_register(&ksz886x_driver); + return 0; +} |