diff --git a/uboot-mtk-20250711/arch/arm/dts/mt7622.dtsi b/uboot-mtk-20250711/arch/arm/dts/mt7622.dtsi
index 3d698b890..f70fadd80 100644
--- a/uboot-mtk-20250711/arch/arm/dts/mt7622.dtsi
+++ b/uboot-mtk-20250711/arch/arm/dts/mt7622.dtsi
@@ -37,6 +37,30 @@
 		};
 	};
 
+	psci {
+		compatible  = "arm,psci-1.0";
+		method      = "smc";
+	};
+
+	reserved-memory {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		/* 64 KiB reserved for ramoops/pstore */
+		ramoops@42ff0000 {
+			compatible = "ramoops";
+			reg = <0x42ff0000 0x10000>;
+			record-size = <0x1000>;
+		};
+
+		/* 192 KiB reserved for ARM Trusted Firmware (BL31) */
+		secmon_reserved: secmon@43000000 {
+			reg = <0x43000000 0x30000>;
+			no-map;
+		};
+	};
+
 	snfi: snfi@1100d000 {
 		compatible = "mediatek,mtk-snfi-spi";
 		reg = <0x1100d000 0x2000>;
diff --git a/uboot-mtk-20250711/arch/arm/dts/mt7981.dtsi b/uboot-mtk-20250711/arch/arm/dts/mt7981.dtsi
index 3d3daac43..73d72acee 100644
--- a/uboot-mtk-20250711/arch/arm/dts/mt7981.dtsi
+++ b/uboot-mtk-20250711/arch/arm/dts/mt7981.dtsi
@@ -46,6 +46,35 @@
 		};
 	};
 
+	psci {
+		compatible  = "arm,psci-0.2";
+		method      = "smc";
+	};
+
+	reserved-memory {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		/* 64 KiB reserved for ramoops/pstore */
+		ramoops@42ff0000 {
+			compatible = "ramoops";
+			reg = <0x42ff0000 0x10000>;
+			record-size = <0x1000>;
+		};
+
+		/* 192 KiB reserved for ARM Trusted Firmware (BL31) */
+		secmon_reserved: secmon@43000000 {
+			reg = <0x43000000 0x30000>;
+			no-map;
+		};
+
+		wmcpu_emi: wmcpu-reserved@4fc00000 {
+			no-map;
+			reg = <0x4fc00000 0x00100000>;
+		};
+	};
+
 	gpt_clk: gpt_dummy20m {
 		compatible = "fixed-clock";
 		clock-frequency = <13000000>;
diff --git a/uboot-mtk-20250711/arch/arm/dts/mt7986.dtsi b/uboot-mtk-20250711/arch/arm/dts/mt7986.dtsi
index 609654d43..ffdc9b997 100644
--- a/uboot-mtk-20250711/arch/arm/dts/mt7986.dtsi
+++ b/uboot-mtk-20250711/arch/arm/dts/mt7986.dtsi
@@ -58,6 +58,35 @@
 		};
 	};
 
+	psci {
+		compatible  = "arm,psci-0.2";
+		method      = "smc";
+	};
+
+	reserved-memory {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		/* 64 KiB reserved for ramoops/pstore */
+		ramoops@42ff0000 {
+			compatible = "ramoops";
+			reg = <0x42ff0000 0x10000>;
+			record-size = <0x1000>;
+		};
+
+		/* 192 KiB reserved for ARM Trusted Firmware (BL31) */
+		secmon_reserved: secmon@43000000 {
+			reg = <0x43000000 0x30000>;
+			no-map;
+		};
+
+		wmcpu_emi: wmcpu-reserved@4fc00000 {
+			no-map;
+			reg = <0x4fc00000 0x00100000>;
+		};
+	};
+
 	dummy_clk: dummy12m {
 		compatible = "fixed-clock";
 		clock-frequency = <12000000>;
diff --git a/uboot-mtk-20250711/arch/arm/dts/mt7988.dtsi b/uboot-mtk-20250711/arch/arm/dts/mt7988.dtsi
index a6a482350..230c78608 100644
--- a/uboot-mtk-20250711/arch/arm/dts/mt7988.dtsi
+++ b/uboot-mtk-20250711/arch/arm/dts/mt7988.dtsi
@@ -75,6 +75,30 @@
 		#clock-cells = <0>;
 	};
 
+	psci {
+		compatible  = "arm,psci-0.2";
+		method      = "smc";
+	};
+
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		/* 64 KiB reserved for ramoops/pstore */
+		ramoops@42ff0000 {
+			compatible = "ramoops";
+			reg = <0 0x42ff0000 0 0x10000>;
+			record-size = <0x1000>;
+		};
+
+		/* 320 KiB reserved for ARM Trusted Firmware (BL31+BL32) */
+		secmon_reserved: secmon@43000000 {
+			reg = <0 0x43000000 0 0x50000>;
+			no-map;
+		};
+	};
+
 	hwver: hwver {
 		compatible = "mediatek,hwver", "syscon";
 		reg = <0 0x8000000 0 0x1000>;