diff --git a/arch/arm64/boot/dts/exynos/exynos7870-on7xelte.dts b/arch/arm64/boot/dts/exynos/exynos7870-on7xelte.dts
index b1d9eff5a827..2a3d91d390ec 100644
--- a/arch/arm64/boot/dts/exynos/exynos7870-on7xelte.dts
+++ b/arch/arm64/boot/dts/exynos/exynos7870-on7xelte.dts
@@ -463,6 +463,7 @@
 	vmmc-supply = <&vdd_ldo26>;
 	vqmmc-supply = <&vdd_ldo27>;
 
+	bus-width = <8>;
 	fifo-depth = <64>;
 	samsung,dw-mshc-ciu-div = <3>;
 	samsung,dw-mshc-sdr-timing = <0 4>;