diff --git a/arch/arm/mach-shmobile/Kconfig b/arch/arm/mach-shmobile/Kconfig
index 8a1364e076c9..8c8889211f6d 100644
--- a/arch/arm/mach-shmobile/Kconfig
+++ b/arch/arm/mach-shmobile/Kconfig
@@ -243,6 +243,7 @@ config MACH_KOELSCH
 	bool "Koelsch board"
 	depends on ARCH_R8A7791
 	select USE_OF
+	select MICREL_PHY if SH_ETH
 
 config MACH_KZM9G
 	bool "KZM-A9-GT board"