diff --git a/arch/arm64/boot/dts/rockchip/rk3308-rock-pi-s.dts b/arch/arm64/boot/dts/rockchip/rk3308-rock-pi-s.dts
index 880976849..a7ecfb188 100644
--- a/arch/arm64/boot/dts/rockchip/rk3308-rock-pi-s.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3308-rock-pi-s.dts
@@ -192,13 +192,9 @@ &cpu0 {
 };
 
 &emmc {
-	bus-width = <4>;  // Confirm if right value - <8>
+	bus-width = <4>;
 	cap-mmc-highspeed;
-	mmc-hs200-1_8v;
-	/* supports-sd; */
-	/* disable-wp; */
 	non-removable;
-	/* num-slots = <1>; */
 	/* please provide actual vmmc and vqmmc supplies
 	vin is not a valid supply for emmcs */
 	vin-supply = <&vcc_io>;
@@ -210,13 +206,9 @@ &i2c1 {
 };
 
 &sdmmc {
-	/* bus-width = <4>; */
 	cap-mmc-highspeed;
 	cap-sd-highspeed;
-	/* max-frequency = <150000000>; */
-	/* supports-sd; */
 	disable-wp;
-	/* num-slots = <1>; */
 	pinctrl-0 = <&sdmmc_clk &sdmmc_cmd &sdmmc_det &sdmmc_bus4>;
 	card-detect-delay = <800>; // Confirm if right value - <200>
 	status = "okay";
@@ -233,6 +225,16 @@ &gmac {
 	status = "okay";
 };
 
+&io_domains {
+	vccio0-supply = <&vcc_io>;
+	vccio1-supply = <&vcc_io>;
+	vccio2-supply = <&vcc_io>;
+	vccio3-supply = <&vcc_io>;
+	vccio4-supply = <&vcc_1v8>;
+	vccio5-supply = <&vcc_io>;
+	status = "okay";
+};
+
 &i2s_8ch_0 {
 	assigned-clocks = <&cru SCLK_I2S0_8CH_RX>;
 	assigned-clock-parents = <&cru SCLK_I2S0_8CH_TX_MUX>;
@@ -246,7 +248,7 @@ &i2s_8ch_2 {
 };
 
 &spi2 {
-	status = "okay";
+//	status = "okay";  //conflicts with UART2
 	max-freq = <10000000>;
 };
 
@@ -296,15 +298,12 @@ &saradc {
 &sdio {
 	#address-cells = <1>;
 	#size-cells = <0>;
-	/* bus-width = <4>;  */
-	max-frequency = <1000000>;
 	cap-sd-highspeed;
 	cap-sdio-irq;
-	/* supports-sdio; */
 	keep-power-in-suspend;
 	mmc-pwrseq = <&sdio_pwrseq>;
 	non-removable;
-	sd-uhs-sdr104;
+	no-mmc;
 	status = "okay";
 
 	rtl8723ds: wifi@1 {
diff --git a/arch/arm64/boot/dts/rockchip/rk3308.dtsi b/arch/arm64/boot/dts/rockchip/rk3308.dtsi
index fd8685d7c..b1cf9fa77 100644
--- a/arch/arm64/boot/dts/rockchip/rk3308.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3308.dtsi
@@ -216,6 +216,11 @@ grf: grf@ff000000 {
 		compatible = "rockchip,rk3308-grf", "syscon", "simple-mfd";
 		reg = <0x0 0xff000000 0x0 0x08000>;
 
+		io_domains: io-domains {
+			compatible = "rockchip,rk3308-io-voltage-domain";
+			status = "disabled";
+		};
+
 		reboot-mode {
 			compatible = "syscon-reboot-mode";
 			offset = <0x500>;