diff --git a/arch/arm/dts/rk3328-rock64.dts b/arch/arm/dts/rk3328-rock64.dts
index 2ff6bf9f693..45f38edef1b 100644
--- a/arch/arm/dts/rk3328-rock64.dts
+++ b/arch/arm/dts/rk3328-rock64.dts
@@ -38,6 +38,8 @@
 		compatible = "regulator-fixed";
 		regulator-name = "vcc3v3";
 		gpio = <&gpio0 30 GPIO_ACTIVE_LOW>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&sdmmc0m1_pwren>;
 		regulator-always-on;
 		regulator-boot-on;
 	};