diff --git a/arch/arm64/boot/dts/st/stm32mp257-engicam-microgea.dtsi b/arch/arm64/boot/dts/st/stm32mp257-engicam-microgea.dtsi
index 5b4287e86def..6cd64587ecdc 100644
--- a/arch/arm64/boot/dts/st/stm32mp257-engicam-microgea.dtsi
+++ b/arch/arm64/boot/dts/st/stm32mp257-engicam-microgea.dtsi
@@ -19,6 +19,18 @@ memory@80000000 {
 		device_type = "memory";
 		reg = <0x0 0x80000000 0x0 0x80000000>;
 	};
+
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		fw@80000000 {
+			compatible = "shared-dma-pool";
+			reg = <0x0 0x80000000 0x0 0x4000000>;
+			no-map;
+		};
+	};
 };
 
 &scmi_regu {