diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-rb-4xx.c b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-rb-4xx.c
index 8e63acac41..d704d7dcaa 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-rb-4xx.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-rb-4xx.c
@@ -183,6 +183,8 @@ static void __init rb433_setup(void)
 
 	ar71xx_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_MII;
 	ar71xx_eth0_data.phy_mask = 0x00000003;
+	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 = 0x00000010;
@@ -212,6 +214,8 @@ static void __init rb450_setup(void)
 
 	ar71xx_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_MII;
 	ar71xx_eth0_data.phy_mask = 0x0000000f;
+	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 = 0x00000010;
diff --git a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx.h b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx.h
index 2f60d19b5f..5cd7dc2c5c 100644
--- a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx.h
+++ b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx.h
@@ -37,7 +37,7 @@
 #define ETH_FCS_LEN	4
 
 #define AG71XX_DRV_NAME		"ag71xx"
-#define AG71XX_DRV_VERSION	"0.4.2"
+#define AG71XX_DRV_VERSION	"0.4.3"
 
 #define AG71XX_NAPI_TX		1
 
diff --git a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_phy.c b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_phy.c
index 512b42eb5c..e44bea4f1e 100644
--- a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_phy.c
+++ b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_phy.c
@@ -276,6 +276,17 @@ int ag71xx_phy_connect(struct ag71xx *ag)
 		break;
 
 	default:
+		switch (pdata->speed) {
+		case SPEED_10:
+		case SPEED_100:
+		case SPEED_1000:
+			break;
+		default:
+			printk(KERN_ERR "%s: invalid speed specified\n",
+				dev->name);
+			return -EINVAL;
+		}
+
 		ag->phy_dev = NULL;
 		printk(KERN_DEBUG "%s: connected to %d PHYs\n",
 			dev->name, phy_count);