diff --git a/arch/arm/boot/dts/rk3288-tb.dts b/arch/arm/boot/dts/rk3288-tb.dts
index 0c16617d3096..52ec9770794b 100755
--- a/arch/arm/boot/dts/rk3288-tb.dts
+++ b/arch/arm/boot/dts/rk3288-tb.dts
@@ -592,6 +592,7 @@ rockchip,power_type = <GPIO>;
 		200000 850000
 		300000 900000
 		400000 1000000
+		500000 1100000
 		600000 1250000
 		>;
 	status="okay";