diff --git a/configs/ph1_ld4_defconfig b/configs/ph1_ld4_defconfig
index 53f3126..c8404f8 100644
--- a/configs/ph1_ld4_defconfig
+++ b/configs/ph1_ld4_defconfig
@@ -2,7 +2,9 @@
 +S:CONFIG_ARM=y
 +S:CONFIG_ARCH_UNIPHIER=y
 +S:CONFIG_MACH_PH1_LD4=y
+CONFIG_DM=y
 CONFIG_NAND_DENALI=y
 CONFIG_SYS_NAND_DENALI_64BIT=y
 CONFIG_NAND_DENALI_SPARE_AREA_SKIP_BYTES=8
+CONFIG_DM_SERIAL=y
 S:CONFIG_SPL_NAND_DENALI=y