diff --git a/arch/arm/dts/uniphier-common32.dtsi b/arch/arm/dts/uniphier-common32.dtsi
index de04de1..d3e5a74 100644
--- a/arch/arm/dts/uniphier-common32.dtsi
+++ b/arch/arm/dts/uniphier-common32.dtsi
@@ -101,6 +101,14 @@
 			reg = <0x5f801000 0xe00>;
 		};
 
+		sysctrl: sysctrl@61840000 {
+			/* specify compatible in each SoC DTSI */
+			reg = <0x61840000 0x4000>;
+			#clock-cells = <1>;
+			clock-names = "ref";
+			clocks = <&refclk>;
+		};
+
 		nand: nand@68000000 {
 			compatible = "denali,denali-nand-dt";
 			reg = <0x68000000 0x20>, <0x68100000 0x1000>;
diff --git a/arch/arm/dts/uniphier-ph1-ld4.dtsi b/arch/arm/dts/uniphier-ph1-ld4.dtsi
index 6f15978..6bd4b91 100644
--- a/arch/arm/dts/uniphier-ph1-ld4.dtsi
+++ b/arch/arm/dts/uniphier-ph1-ld4.dtsi
@@ -160,3 +160,7 @@
 &pinctrl {
 	compatible = "socionext,ph1-ld4-pinctrl", "syscon";
 };
+
+&sysctrl {
+	compatible = "socionext,ph1-ld4-sysctrl";
+};
diff --git a/arch/arm/dts/uniphier-ph1-pro4.dtsi b/arch/arm/dts/uniphier-ph1-pro4.dtsi
index a236dbc..984f99c 100644
--- a/arch/arm/dts/uniphier-ph1-pro4.dtsi
+++ b/arch/arm/dts/uniphier-ph1-pro4.dtsi
@@ -200,3 +200,7 @@
 &pinctrl {
 	compatible = "socionext,ph1-pro4-pinctrl", "syscon";
 };
+
+&sysctrl {
+	compatible = "socionext,ph1-pro4-sysctrl";
+};
diff --git a/arch/arm/dts/uniphier-ph1-pro5.dtsi b/arch/arm/dts/uniphier-ph1-pro5.dtsi
index 120767c..a836176 100644
--- a/arch/arm/dts/uniphier-ph1-pro5.dtsi
+++ b/arch/arm/dts/uniphier-ph1-pro5.dtsi
@@ -194,3 +194,7 @@
 &pinctrl {
 	compatible = "socionext,ph1-pro5-pinctrl", "syscon";
 };
+
+&sysctrl {
+	compatible = "socionext,ph1-pro5-sysctrl";
+};
diff --git a/arch/arm/dts/uniphier-ph1-sld3.dtsi b/arch/arm/dts/uniphier-ph1-sld3.dtsi
index 9ff9584..c7a8902 100644
--- a/arch/arm/dts/uniphier-ph1-sld3.dtsi
+++ b/arch/arm/dts/uniphier-ph1-sld3.dtsi
@@ -206,6 +206,14 @@
 			interrupts = <0 83 4>;
 		};
 
+		sysctrl: sysctrl@f1840000 {
+			compatible = "socionext,ph1-sld3-sysctrl";
+			reg = <0xf1840000 0x4000>;
+			#clock-cells = <1>;
+			clock-names = "ref";
+			clocks = <&refclk>;
+		};
+
 		nand: nand@f8000000 {
 			compatible = "denali,denali-nand-dt";
 			reg = <0xf8000000 0x20>, <0xf8100000 0x1000>;
diff --git a/arch/arm/dts/uniphier-ph1-sld8.dtsi b/arch/arm/dts/uniphier-ph1-sld8.dtsi
index e765a4b..9d97fb0 100644
--- a/arch/arm/dts/uniphier-ph1-sld8.dtsi
+++ b/arch/arm/dts/uniphier-ph1-sld8.dtsi
@@ -160,3 +160,7 @@
 &pinctrl {
 	compatible = "socionext,ph1-sld8-pinctrl", "syscon";
 };
+
+&sysctrl {
+	compatible = "socionext,ph1-sld8-sysctrl";
+};
diff --git a/arch/arm/dts/uniphier-proxstream2.dtsi b/arch/arm/dts/uniphier-proxstream2.dtsi
index c7423ff..f6f4bbe 100644
--- a/arch/arm/dts/uniphier-proxstream2.dtsi
+++ b/arch/arm/dts/uniphier-proxstream2.dtsi
@@ -205,3 +205,7 @@
 &pinctrl {
 	compatible = "socionext,proxstream2-pinctrl", "syscon";
 };
+
+&sysctrl {
+	compatible = "socionext,proxstream2-sysctrl";
+};