diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-pb92.c b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-pb92.c
index e3688954df..b422c3ebf0 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-pb92.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-pb92.c
@@ -80,21 +80,19 @@ static struct gpio_button pb92_gpio_buttons[] __initdata = {
 	}
 };
 
-#define PB92_WAN_PHYMASK	BIT(20)
-#define PB92_LAN_PHYMASK	(BIT(0) | BIT(1) | BIT(2) | BIT(3) | BIT(4))
-#define PB92_MDIO_PHYMASK	(PB92_LAN_PHYMASK | PB92_WAN_PHYMASK)
-
 static void __init pb92_init(void)
 {
+	u8 *mac = (u8 *) KSEG1ADDR(0x1fff0000);
+
+	ar71xx_set_mac_base(mac);
 	ar71xx_add_device_m25p80(&pb92_flash_data);
 
-	ar71xx_add_device_mdio(~PB92_MDIO_PHYMASK);
-
-	ar71xx_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_MII;
-	ar71xx_eth0_data.phy_mask = PB92_WAN_PHYMASK;
+	ar71xx_add_device_mdio(~0);
+	ar71xx_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RMII;
+	ar71xx_eth0_data.speed = SPEED_100;
+	ar71xx_eth0_data.duplex = DUPLEX_FULL;
 
 	ar71xx_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_RMII;
-	ar71xx_eth1_data.phy_mask = PB92_LAN_PHYMASK;
 	ar71xx_eth1_data.speed = SPEED_1000;
 	ar71xx_eth1_data.duplex = DUPLEX_FULL;