--- configs/kylin-rk3036_defconfig
+++ configs/kylin-rk3036_defconfig
@@ -8,6 +8,7 @@ CONFIG_ROCKCHIP_RK3036=y
 CONFIG_TARGET_KYLIN_RK3036=y
 CONFIG_SPL_STACK_R_ADDR=0x80000
 CONFIG_DEFAULT_DEVICE_TREE="rk3036-sdk"
+CONFIG_DEBUG_UART=y
 CONFIG_SPL_SYS_MALLOC_F_LEN=0x0
 # CONFIG_ANDROID_BOOT_IMAGE is not set
 # CONFIG_DISPLAY_CPUINFO is not set