diff --git a/arch/arm/boot/dts/amlogic/mesonaxg.dtsi b/arch/arm/boot/dts/amlogic/mesonaxg.dtsi
index 50f35d5820ec..233df58409e3 100644
--- a/arch/arm/boot/dts/amlogic/mesonaxg.dtsi
+++ b/arch/arm/boot/dts/amlogic/mesonaxg.dtsi
@@ -825,6 +825,12 @@
 	cpu_ver_name{
 		compatible = "amlogic, cpu-major-id-axg";
 	};
+
+	defendkey: defendkey {
+		compatible = "amlogic, defendkey";
+		mem_size = <0x0 0x100000>;
+		status = "okay";
+	};
 };/* end of / */
 
 &pinctrl_aobus {
diff --git a/arch/arm/configs/meson64_a32_smarthome_defconfig b/arch/arm/configs/meson64_a32_smarthome_defconfig
index 8705513d42aa..5731bc544fe2 100644
--- a/arch/arm/configs/meson64_a32_smarthome_defconfig
+++ b/arch/arm/configs/meson64_a32_smarthome_defconfig
@@ -324,6 +324,7 @@ CONFIG_AMLOGIC_SARADC=y
 CONFIG_AMLOGIC_DDR_WINDOW_TOOL=m
 CONFIG_AMLOGIC_LEDRING=y
 CONFIG_AMLOGIC_GPIO_IRQ=y
+CONFIG_AMLOGIC_DEFENDKEY=y
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 CONFIG_DEVTMPFS=y
 CONFIG_DEVTMPFS_MOUNT=y
diff --git a/arch/arm64/boot/dts/amlogic/mesonaxg.dtsi b/arch/arm64/boot/dts/amlogic/mesonaxg.dtsi
index 96b762291446..685af2382338 100644
--- a/arch/arm64/boot/dts/amlogic/mesonaxg.dtsi
+++ b/arch/arm64/boot/dts/amlogic/mesonaxg.dtsi
@@ -831,6 +831,12 @@
 	cpu_ver_name{
 		compatible = "amlogic, cpu-major-id-axg";
 	};
+
+	defendkey: defendkey {
+		compatible = "amlogic, defendkey";
+		mem_size = <0x0 0x100000>;
+		status = "okay";
+	};
 };/* end of / */
 
 &pinctrl_aobus {
diff --git a/arch/arm64/configs/meson64_smarthome_defconfig b/arch/arm64/configs/meson64_smarthome_defconfig
index b88827d6d613..ecde9c5f7a49 100644
--- a/arch/arm64/configs/meson64_smarthome_defconfig
+++ b/arch/arm64/configs/meson64_smarthome_defconfig
@@ -318,6 +318,7 @@ CONFIG_AMLOGIC_PCA9557_KEYPAD=y
 CONFIG_AMLOGIC_SENSOR=y
 CONFIG_AMLOGIC_SENSOR_CY8C4014=y
 CONFIG_AMLOGIC_GPIO_IRQ=y
+CONFIG_AMLOGIC_DEFENDKEY=y
 CONFIG_DOLBY_FW=y
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 CONFIG_DEVTMPFS=y