diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-pine-h64.dts b/arch/arm64/boot/dts/allwinner/sun50i-h6-pine-h64.dts
index ceffc40810ee..48daec7f78ba 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h6-pine-h64.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-pine-h64.dts
@@ -46,6 +46,7 @@ &mmc0 {
 	pinctrl-0 = <&mmc0_pins>;
 	vmmc-supply = <&reg_cldo1>;
 	cd-gpios = <&pio 5 6 GPIO_ACTIVE_LOW>;
+	bus-width = <4>;
 	status = "okay";
 };
 
@@ -56,6 +57,7 @@ &mmc2 {
 	vqmmc-supply = <&reg_bldo2>;
 	non-removable;
 	cap-mmc-hw-reset;
+	bus-width = <8>;
 	status = "okay";
 };