diff --git a/arch/arm/mach-uniphier/Kconfig b/arch/arm/mach-uniphier/Kconfig
index 73b8676..feda49e 100644
--- a/arch/arm/mach-uniphier/Kconfig
+++ b/arch/arm/mach-uniphier/Kconfig
@@ -8,7 +8,7 @@
 
 choice
 	prompt "UniPhier SoC select"
-	optional
+	default MACH_PH1_PRO4
 
 config MACH_PH1_PRO4
 	bool "PH1-Pro4"
diff --git a/configs/ph1_pro4_defconfig b/configs/ph1_pro4_defconfig
index cc3a9a4..65ff3e0 100644
--- a/configs/ph1_pro4_defconfig
+++ b/configs/ph1_pro4_defconfig
@@ -1,7 +1,6 @@
 CONFIG_ARM=y
 CONFIG_ARCH_UNIPHIER=y
 CONFIG_SPL_DM=y
-CONFIG_MACH_PH1_PRO4=y
 CONFIG_PFC_MICRO_SUPPORT_CARD=y
 CONFIG_SYS_TEXT_BASE=0x84000000
 CONFIG_DEFAULT_DEVICE_TREE="uniphier-ph1-pro4-ref"