diff --git a/arch/microblaze/configs/mmu_defconfig b/arch/microblaze/configs/mmu_defconfig
index 85afdb377f73..4da7bc4ac4a3 100644
--- a/arch/microblaze/configs/mmu_defconfig
+++ b/arch/microblaze/configs/mmu_defconfig
@@ -44,6 +44,7 @@ CONFIG_NETDEVICES=y
 CONFIG_XILINX_EMACLITE=y
 CONFIG_XILINX_AXI_EMAC=y
 CONFIG_XILINX_LL_TEMAC=y
+CONFIG_MARVELL_PHY=y
 # CONFIG_INPUT is not set
 # CONFIG_SERIO is not set
 # CONFIG_VT is not set