diff --git a/arch/arm/configs/rk30_sdk_defconfig b/arch/arm/configs/rk30_sdk_defconfig
index d3ea696c1074..3655c2ba9b92 100755
--- a/arch/arm/configs/rk30_sdk_defconfig
+++ b/arch/arm/configs/rk30_sdk_defconfig
@@ -173,6 +173,7 @@ CONFIG_BT_BNEP=y
 CONFIG_BT_HIDP=y
 CONFIG_BT_HCIUART=y
 CONFIG_BT_HCIUART_H4=y
+CONFIG_BT_HCIUART_LL=y
 CONFIG_RFKILL=y
 CONFIG_DEVTMPFS=y
 CONFIG_DEVTMPFS_MOUNT=y