diff options
| -rw-r--r-- | target/linux/ar71xx/files/arch/mips/ath79/mach-mynet-n750.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/mach-mynet-n750.c b/target/linux/ar71xx/files/arch/mips/ath79/mach-mynet-n750.c index 60f68cd6a1..29201feb0b 100644 --- a/target/linux/ar71xx/files/arch/mips/ath79/mach-mynet-n750.c +++ b/target/linux/ar71xx/files/arch/mips/ath79/mach-mynet-n750.c @@ -12,6 +12,7 @@ #include <linux/pci.h> #include <linux/phy.h> #include <linux/gpio.h> +#include <linux/delay.h> #include <linux/platform_device.h> #include <linux/ath9k_platform.h> #include <linux/ar8216_platform.h> @@ -144,6 +145,23 @@ static void mynet_n750_get_mac(const char *name, char *mac) pr_err("no MAC address found for %s\n", name); } +/* + * The bootloader on this board powers down all PHYs on the switch + * before booting the kernel. We bring all PHYs back up so that they are + * discoverable by the mdio bus scan and the switch is detected + * correctly. + */ +static void mynet_n750_mdio_fixup(struct mii_bus *bus) +{ + int i; + + for (i = 0; i < 5; i++) + bus->write(bus, i, MII_BMCR, + (BMCR_RESET | BMCR_ANENABLE | BMCR_SPEED1000)); + + mdelay(1000); +} + static void __init mynet_n750_setup(void) { u8 *art = (u8 *) KSEG1ADDR(0x1fff0000); @@ -178,6 +196,7 @@ static void __init mynet_n750_setup(void) mdiobus_register_board_info(mynet_n750_mdio0_info, ARRAY_SIZE(mynet_n750_mdio0_info)); + ath79_mdio0_data.reset = mynet_n750_mdio_fixup; ath79_register_mdio(0, 0x0); mynet_n750_get_mac("lanmac=", ath79_eth0_data.mac_addr); |