diff --git a/arch/arm/configs/rk29_ddr3sdk_defconfig b/arch/arm/configs/rk29_ddr3sdk_defconfig
index 1b8a2e28a5f4..6a67e306859a 100755
--- a/arch/arm/configs/rk29_ddr3sdk_defconfig
+++ b/arch/arm/configs/rk29_ddr3sdk_defconfig
@@ -2091,7 +2091,7 @@ CONFIG_FRAME_WARN=1024
 CONFIG_MAGIC_SYSRQ=y
 # CONFIG_STRIP_ASM_SYMS is not set
 # CONFIG_UNUSED_SYMBOLS is not set
-# CONFIG_DEBUG_FS is not set
+CONFIG_DEBUG_FS=y
 # CONFIG_HEADERS_CHECK is not set
 CONFIG_DEBUG_KERNEL=y
 # CONFIG_DEBUG_SHIRQ is not set