--- zzzz-none-000/linux-4.4.60/drivers/net/ethernet/Kconfig	2017-04-08 07:53:53.000000000 +0000
+++ scorpion-7490-727/linux-4.4.60/drivers/net/ethernet/Kconfig	2021-02-04 17:41:59.000000000 +0000
@@ -13,6 +13,7 @@
 
 config MDIO
 	tristate
+	default y
 
 config SUNGEM_PHY
 	tristate