diff options
Diffstat (limited to 'src/roms/u-boot/drivers/net/phy/et1011c.c')
-rw-r--r-- | src/roms/u-boot/drivers/net/phy/et1011c.c | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/src/roms/u-boot/drivers/net/phy/et1011c.c b/src/roms/u-boot/drivers/net/phy/et1011c.c new file mode 100644 index 0000000..70c15e2 --- /dev/null +++ b/src/roms/u-boot/drivers/net/phy/et1011c.c @@ -0,0 +1,101 @@ +/* + * ET1011C PHY driver + * + * Derived from Linux kernel driver by Chaithrika U S + * Copyright (C) 2013, Texas Instruments, Incorporated - http://www.ti.com/ + * + * SPDX-License-Identifier: GPL-2.0+ + */ +#include <config.h> +#include <phy.h> + +#define ET1011C_CONFIG_REG (0x16) +#define ET1011C_TX_FIFO_MASK (0x3 << 12) +#define ET1011C_TX_FIFO_DEPTH_8 (0x0 << 12) +#define ET1011C_TX_FIFO_DEPTH_16 (0x1 << 12) +#define ET1011C_INTERFACE_MASK (0x7 << 0) +#define ET1011C_GMII_INTERFACE (0x2 << 0) +#define ET1011C_SYS_CLK_EN (0x1 << 4) +#define ET1011C_TX_CLK_EN (0x1 << 5) + +#define ET1011C_STATUS_REG (0x1A) +#define ET1011C_DUPLEX_STATUS (0x1 << 7) +#define ET1011C_SPEED_MASK (0x3 << 8) +#define ET1011C_SPEED_1000 (0x2 << 8) +#define ET1011C_SPEED_100 (0x1 << 8) +#define ET1011C_SPEED_10 (0x0 << 8) + +static int et1011c_config(struct phy_device *phydev) +{ + int ctl = 0; + ctl = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMCR); + if (ctl < 0) + return ctl; + ctl &= ~(BMCR_FULLDPLX | BMCR_SPEED100 | BMCR_SPEED1000 | + BMCR_ANENABLE); + /* First clear the PHY */ + phy_write(phydev, MDIO_DEVAD_NONE, MII_BMCR, ctl | BMCR_RESET); + + return genphy_config_aneg(phydev); +} + +static int et1011c_parse_status(struct phy_device *phydev) +{ + int mii_reg; + int speed; + + mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, ET1011C_STATUS_REG); + + if (mii_reg & ET1011C_DUPLEX_STATUS) + phydev->duplex = DUPLEX_FULL; + else + phydev->duplex = DUPLEX_HALF; + + speed = mii_reg & ET1011C_SPEED_MASK; + switch (speed) { + case ET1011C_SPEED_1000: + phydev->speed = SPEED_1000; + mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, ET1011C_CONFIG_REG); + mii_reg &= ~ET1011C_TX_FIFO_MASK; + phy_write(phydev, MDIO_DEVAD_NONE, ET1011C_CONFIG_REG, + mii_reg | + ET1011C_GMII_INTERFACE | + ET1011C_SYS_CLK_EN | +#ifdef CONFIG_PHY_ET1011C_TX_CLK_FIX + ET1011C_TX_CLK_EN | +#endif + ET1011C_TX_FIFO_DEPTH_16); + break; + case ET1011C_SPEED_100: + phydev->speed = SPEED_100; + break; + case ET1011C_SPEED_10: + phydev->speed = SPEED_10; + break; + } + + return 0; +} + +static int et1011c_startup(struct phy_device *phydev) +{ + genphy_update_link(phydev); + et1011c_parse_status(phydev); + return 0; +} + +static struct phy_driver et1011c_driver = { + .name = "ET1011C", + .uid = 0x0282f014, + .mask = 0xfffffff0, + .features = PHY_GBIT_FEATURES, + .config = &et1011c_config, + .startup = &et1011c_startup, +}; + +int phy_et1011c_init(void) +{ + phy_register(&et1011c_driver); + + return 0; +} |