diff --git a/arch/arm/boot/dts/amlogic/mesontxlx.dtsi b/arch/arm/boot/dts/amlogic/mesontxlx.dtsi
index 18996fc85ff2..1c13daa4399a 100644
--- a/arch/arm/boot/dts/amlogic/mesontxlx.dtsi
+++ b/arch/arm/boot/dts/amlogic/mesontxlx.dtsi
@@ -938,6 +938,13 @@
 		compatible = "amlogic, vdac-txlx";
 		status = "okay";
 	};
+
+	defendkey: defendkey {
+		compatible = "amlogic, defendkey";
+		reg = <0xff634500 0x4>; /*RNG_USR_DATA*/
+		mem_size = <0x0 0x100000>;
+		status = "okay";
+	};
 }; /* end of / */
 
 &pinctrl_aobus {
diff --git a/arch/arm64/boot/dts/amlogic/mesontxlx.dtsi b/arch/arm64/boot/dts/amlogic/mesontxlx.dtsi
index ff12477ed816..27a312223f2f 100644
--- a/arch/arm64/boot/dts/amlogic/mesontxlx.dtsi
+++ b/arch/arm64/boot/dts/amlogic/mesontxlx.dtsi
@@ -938,6 +938,13 @@
 		compatible = "amlogic, vdac-txlx";
 		status = "okay";
 	};
+
+	defendkey: defendkey {
+		compatible = "amlogic, defendkey";
+		reg = <0x0 0xff634500 0x0 0x4>; /*RNG_USR_DATA*/
+		mem_size = <0x0 0x100000>;
+		status = "okay";
+	};
 }; /* end of / */
 
 &pinctrl_aobus {