diff --git a/arch/arm/boot/dts/rk3229-echo-v10.dts b/arch/arm/boot/dts/rk3229-echo-v10.dts
index 74fe7a7b865e..204f28a6373f 100644
--- a/arch/arm/boot/dts/rk3229-echo-v10.dts
+++ b/arch/arm/boot/dts/rk3229-echo-v10.dts
@@ -227,6 +227,14 @@
 	cpu-supply = <&vdd_arm>;
 };
 
+&io_domains {
+	status = "okay";
+
+	vccio1-supply = <&vcc_io>;
+	vccio2-supply = <&vcc_io>;
+	vccio4-supply = <&vcc_io>;
+};
+
 &pinctrl {
 	pmic {
 		pmic_int_l: pmic-int-l {
diff --git a/arch/arm/boot/dts/rk3229-evb.dts b/arch/arm/boot/dts/rk3229-evb.dts
index 3776e4935947..fadc2274d52e 100644
--- a/arch/arm/boot/dts/rk3229-evb.dts
+++ b/arch/arm/boot/dts/rk3229-evb.dts
@@ -106,6 +106,28 @@
 		regulator-always-on;
 		regulator-boot-on;
 	};
+
+	regulators {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		vccio_1v8_reg: regulator@0 {
+			compatible = "regulator-fixed";
+			regulator-name = "vccio_1v8";
+			regulator-min-microvolt = <1800000>;
+			regulator-max-microvolt = <1800000>;
+			regulator-always-on;
+		};
+
+		vccio_3v3_reg: regulator@1 {
+			compatible = "regulator-fixed";
+			regulator-name = "vccio_3v3";
+			regulator-min-microvolt = <3300000>;
+			regulator-max-microvolt = <3300000>;
+			regulator-always-on;
+		};
+	};
 };
 
 &cpu0 {
@@ -133,6 +155,14 @@
 	mali-supply = <&vdd_log>;
 };
 
+&io_domains {
+	status = "okay";
+
+	vccio1-supply = <&vccio_3v3_reg>;
+	vccio2-supply = <&vccio_1v8_reg>;
+	vccio4-supply = <&vccio_3v3_reg>;
+};
+
 &pinctrl {
 	usb {
 		host_vbus_drv: host-vbus-drv {