diff --git a/arch/arm/boot/dts/rk3288-evb.dtsi b/arch/arm/boot/dts/rk3288-evb.dtsi
index d8a22d699dbc..3e1f38168292 100644
--- a/arch/arm/boot/dts/rk3288-evb.dtsi
+++ b/arch/arm/boot/dts/rk3288-evb.dtsi
@@ -307,6 +307,7 @@ &i2c3 {
 
 &i2c4 {
 	status = "okay";
+	clock-frequency = <400000>;
 
 	gsl3673@40 {
 		compatible = "GSL,GSL3673";