diff --git a/arch/arm/boot/dts/rk3288-evb-act8846.dts b/arch/arm/boot/dts/rk3288-evb-act8846.dts
index e6621471753b..452ca2441e84 100644
--- a/arch/arm/boot/dts/rk3288-evb-act8846.dts
+++ b/arch/arm/boot/dts/rk3288-evb-act8846.dts
@@ -135,8 +135,8 @@ vcc_io: REG2 {
 
 			vdd_log: REG3 {
 				regulator-name = "VDD_LOG";
-				regulator-min-microvolt = <1000000>;
-				regulator-max-microvolt = <1000000>;
+				regulator-min-microvolt = <700000>;
+				regulator-max-microvolt = <1500000>;
 				regulator-always-on;
 			};
 
@@ -149,7 +149,7 @@ vcc_20: REG4 {
 
 			vccio_sd: REG5 {
 				regulator-name = "VCCIO_SD";
-				regulator-min-microvolt = <3300000>;
+				regulator-min-microvolt = <1800000>;
 				regulator-max-microvolt = <3300000>;
 				regulator-always-on;
 			};