diff --git a/configs/SBx81LIFKW_defconfig b/configs/SBx81LIFKW_defconfig
index ec9df1a..348f861 100644
--- a/configs/SBx81LIFKW_defconfig
+++ b/configs/SBx81LIFKW_defconfig
@@ -14,6 +14,7 @@
 CONFIG_CMD_SF=y
 CONFIG_CMD_DHCP=y
 CONFIG_BOOTP_NTPSERVER=y
+CONFIG_CMD_MII=y
 CONFIG_CMD_PING=y
 CONFIG_CMD_SNTP=y
 CONFIG_OF_CONTROL=y
@@ -29,5 +30,10 @@
 CONFIG_SPI_FLASH=y
 CONFIG_SPI_FLASH_STMICRO=y
 # CONFIG_SPI_FLASH_USE_4K_SECTORS is not set
+CONFIG_PHYLIB=y
+CONFIG_MV88E61XX_SWITCH=y
+CONFIG_MV88E61XX_CPU_PORT=10
+CONFIG_MV88E61XX_PHY_PORTS=0x003
+CONFIG_MV88E61XX_FIXED_PORTS=0x300
 CONFIG_SPI=y
 CONFIG_KIRKWOOD_SPI=y