diff --git a/configs/hsdk_defconfig b/configs/hsdk_defconfig
index eec1947..9ea054b 100644
--- a/configs/hsdk_defconfig
+++ b/configs/hsdk_defconfig
@@ -44,6 +44,7 @@
 CONFIG_SPI_FLASH_SST=y
 CONFIG_DM_ETH=y
 CONFIG_ETH_DESIGNWARE=y
+CONFIG_MII=y
 CONFIG_DM_SERIAL=y
 CONFIG_DEBUG_UART_SHIFT=2
 CONFIG_DEBUG_UART_ANNOUNCE=y