diff --git a/arch/arm/plat-rk/Kconfig b/arch/arm/plat-rk/Kconfig
index 68960de88248..47ceeade6135 100755
--- a/arch/arm/plat-rk/Kconfig
+++ b/arch/arm/plat-rk/Kconfig
@@ -159,7 +159,7 @@ config RK_EARLY_PRINTK
 config RK_DEBUG_UART
 	int "Debug UART"
 	default 1 if ARCH_RK29
-	default 2 if ARCH_RK30 || ARCH_RK2928
+	default 2 if ARCH_RK30 || ARCH_RK2928 || ARCH_RK3188
 	help
 	  Select a UART for debugging. -1 disable.