diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/Kconfig b/target/linux/ar71xx/files/arch/mips/ar71xx/Kconfig
index 865fc47ac..0864b997e 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/Kconfig
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/Kconfig
@@ -151,6 +151,7 @@ config AR71XX_MACH_WZR_HP_G300NH
 	select AR71XX_DEV_GPIO_BUTTONS
 	select AR71XX_DEV_LEDS_GPIO
 	select AR71XX_DEV_USB
+	select RTL8366_SMI
 	default y
 
 config AR71XX_MACH_WP543
diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-wzr-hp-g300nh.c b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-wzr-hp-g300nh.c
index 35f216582..308f93141 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/mach-wzr-hp-g300nh.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/mach-wzr-hp-g300nh.c
@@ -234,14 +234,18 @@ static struct platform_device wzrhpg301nh_rtl8366rb_device = {
 	}
 };
 
-static void __init wzrhpg30xnh_setup(bool hasrtl8366rb)
+static void __init wzrhpg30xnh_setup(void)
 {
 	u8 *eeprom = (u8 *) KSEG1ADDR(0x1fff1000);
 	u8 *mac = eeprom + WZRHPG300NH_MAC_OFFSET;
+	bool hasrtl8366rb = false;
 
 	ar71xx_init_mac(ar71xx_eth0_data.mac_addr, mac, 0);
 	ar71xx_init_mac(ar71xx_eth1_data.mac_addr, mac, 1);
 
+	if (rtl8366_smi_detect(&wzrhpg300nh_rtl8366_data) == RTL8366_TYPE_RB)
+		hasrtl8366rb = true;
+
 	if (hasrtl8366rb) {
 		ar71xx_eth0_pll_data.pll_1000 = 0x1f000000;
 		ar71xx_eth0_data.mii_bus_dev = &wzrhpg301nh_rtl8366rb_device.dev;
@@ -284,18 +288,8 @@ static void __init wzrhpg30xnh_setup(bool hasrtl8366rb)
 
 }
 
-static void __init wzrhpg300nh_setup(void)
-{
-	wzrhpg30xnh_setup(false);
-}
-
-static void __init wzrhpg301nh_setup(void)
-{
-	wzrhpg30xnh_setup(true);
-}
-
 MIPS_MACHINE(AR71XX_MACH_WZR_HP_G300NH, "WZR-HP-G300NH",
-	     "Buffalo WZR-HP-G300NH", wzrhpg300nh_setup);
+	     "Buffalo WZR-HP-G300NH", wzrhpg30xnh_setup);
 
 MIPS_MACHINE(AR71XX_MACH_WZR_HP_G301NH, "WZR-HP-G301NH",
-	     "Buffalo WZR-HP-G301NH", wzrhpg301nh_setup);
+	     "Buffalo WZR-HP-G301NH", wzrhpg30xnh_setup);