diff --git a/arch/arm64/boot/dts/rockchip/rk3399-evb.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-evb.dtsi
index fece9dede1c7..574482bd2cba 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-evb.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-evb.dtsi
@@ -272,6 +272,7 @@
 
 &sdhci {
 	bus-width = <8>;
+	mmc-hs400-1_8v;
 	supports-emmc;
 	non-removable;
 	status = "okay";