diff --git a/arch/arm/boot/dts/uniphier-pinctrl.dtsi b/arch/arm/boot/dts/uniphier-pinctrl.dtsi
index 8ee79da9af7c33f6834b2b4542dea20b1ecc2e31..246f35ffb638119fc81c9e159afe870fb7e72a48 100644
--- a/arch/arm/boot/dts/uniphier-pinctrl.dtsi
+++ b/arch/arm/boot/dts/uniphier-pinctrl.dtsi
@@ -45,7 +45,7 @@
 
 &pinctrl {
 	pinctrl_emmc: emmc_grp {
-		groups = "emmc";
+		groups = "emmc", "emmc_dat8";
 		function = "emmc";
 	};