diff --git a/arch/arm/dts/uniphier-ph1-ld6b-ref.dts b/arch/arm/dts/uniphier-ph1-ld6b-ref.dts
index 58dc20e..ca68930 100644
--- a/arch/arm/dts/uniphier-ph1-ld6b-ref.dts
+++ b/arch/arm/dts/uniphier-ph1-ld6b-ref.dts
@@ -54,6 +54,20 @@
 };
 
 /* for U-boot only */
+/ {
+	soc {
+		u-boot,dm-pre-reloc;
+	};
+};
+
 &serial0 {
-       u-boot,dm-pre-reloc;
+	u-boot,dm-pre-reloc;
+};
+
+&pinctrl {
+	u-boot,dm-pre-reloc;
+};
+
+&pinctrl_uart0 {
+	u-boot,dm-pre-reloc;
 };