diff options
Diffstat (limited to 'qemu/roms/u-boot/drivers/net/phy/realtek.c')
-rw-r--r-- | qemu/roms/u-boot/drivers/net/phy/realtek.c | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/drivers/net/phy/realtek.c b/qemu/roms/u-boot/drivers/net/phy/realtek.c new file mode 100644 index 000000000..a3ace6852 --- /dev/null +++ b/qemu/roms/u-boot/drivers/net/phy/realtek.c @@ -0,0 +1,141 @@ +/* + * RealTek PHY drivers + * + * SPDX-License-Identifier: GPL-2.0+ + * + * Copyright 2010-2011 Freescale Semiconductor, Inc. + * author Andy Fleming + */ +#include <config.h> +#include <common.h> +#include <phy.h> + +#define PHY_AUTONEGOTIATE_TIMEOUT 5000 + +/* RTL8211x PHY Status Register */ +#define MIIM_RTL8211x_PHY_STATUS 0x11 +#define MIIM_RTL8211x_PHYSTAT_SPEED 0xc000 +#define MIIM_RTL8211x_PHYSTAT_GBIT 0x8000 +#define MIIM_RTL8211x_PHYSTAT_100 0x4000 +#define MIIM_RTL8211x_PHYSTAT_DUPLEX 0x2000 +#define MIIM_RTL8211x_PHYSTAT_SPDDONE 0x0800 +#define MIIM_RTL8211x_PHYSTAT_LINK 0x0400 + + +/* RealTek RTL8211x */ +static int rtl8211x_config(struct phy_device *phydev) +{ + phy_write(phydev, MDIO_DEVAD_NONE, MII_BMCR, BMCR_RESET); + + genphy_config_aneg(phydev); + + return 0; +} + +static int rtl8211x_parse_status(struct phy_device *phydev) +{ + unsigned int speed; + unsigned int mii_reg; + + mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MIIM_RTL8211x_PHY_STATUS); + + if (!(mii_reg & MIIM_RTL8211x_PHYSTAT_SPDDONE)) { + int i = 0; + + /* in case of timeout ->link is cleared */ + phydev->link = 1; + puts("Waiting for PHY realtime link"); + while (!(mii_reg & MIIM_RTL8211x_PHYSTAT_SPDDONE)) { + /* Timeout reached ? */ + if (i > PHY_AUTONEGOTIATE_TIMEOUT) { + puts(" TIMEOUT !\n"); + phydev->link = 0; + break; + } + + if ((i++ % 1000) == 0) + putc('.'); + udelay(1000); /* 1 ms */ + mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, + MIIM_RTL8211x_PHY_STATUS); + } + puts(" done\n"); + udelay(500000); /* another 500 ms (results in faster booting) */ + } else { + if (mii_reg & MIIM_RTL8211x_PHYSTAT_LINK) + phydev->link = 1; + else + phydev->link = 0; + } + + if (mii_reg & MIIM_RTL8211x_PHYSTAT_DUPLEX) + phydev->duplex = DUPLEX_FULL; + else + phydev->duplex = DUPLEX_HALF; + + speed = (mii_reg & MIIM_RTL8211x_PHYSTAT_SPEED); + + switch (speed) { + case MIIM_RTL8211x_PHYSTAT_GBIT: + phydev->speed = SPEED_1000; + break; + case MIIM_RTL8211x_PHYSTAT_100: + phydev->speed = SPEED_100; + break; + default: + phydev->speed = SPEED_10; + } + + return 0; +} + +static int rtl8211x_startup(struct phy_device *phydev) +{ + /* Read the Status (2x to make sure link is right) */ + genphy_update_link(phydev); + rtl8211x_parse_status(phydev); + + return 0; +} + +/* Support for RTL8211B PHY */ +static struct phy_driver RTL8211B_driver = { + .name = "RealTek RTL8211B", + .uid = 0x1cc910, + .mask = 0xffffff, + .features = PHY_GBIT_FEATURES, + .config = &rtl8211x_config, + .startup = &rtl8211x_startup, + .shutdown = &genphy_shutdown, +}; + +/* Support for RTL8211E-VB-CG, RTL8211E-VL-CG and RTL8211EG-VB-CG PHYs */ +static struct phy_driver RTL8211E_driver = { + .name = "RealTek RTL8211E", + .uid = 0x1cc915, + .mask = 0xffffff, + .features = PHY_GBIT_FEATURES, + .config = &rtl8211x_config, + .startup = &rtl8211x_startup, + .shutdown = &genphy_shutdown, +}; + +/* Support for RTL8211DN PHY */ +static struct phy_driver RTL8211DN_driver = { + .name = "RealTek RTL8211DN", + .uid = 0x1cc914, + .mask = 0xffffff, + .features = PHY_GBIT_FEATURES, + .config = &rtl8211x_config, + .startup = &rtl8211x_startup, + .shutdown = &genphy_shutdown, +}; + +int phy_realtek_init(void) +{ + phy_register(&RTL8211B_driver); + phy_register(&RTL8211E_driver); + phy_register(&RTL8211DN_driver); + + return 0; +} |