diff --git a/arch/arm/dts/rk3328-evb-u-boot.dtsi b/arch/arm/dts/rk3328-evb-u-boot.dtsi
index 22bfaef..58ebf52 100644
--- a/arch/arm/dts/rk3328-evb-u-boot.dtsi
+++ b/arch/arm/dts/rk3328-evb-u-boot.dtsi
@@ -3,6 +3,8 @@
  * (C) Copyright 2016 Rockchip Electronics Co., Ltd
  */
 
+#include "rk3328-sdram-ddr3-666.dtsi"
+
 / {
 	aliases {
 		mmc0 = &emmc;