diff --git a/arch/arm64/boot/dts/intel/socfpga_agilex.dtsi b/arch/arm64/boot/dts/intel/socfpga_agilex.dtsi
index 9d7f19e97df7..d81dd8622258 100644
--- a/arch/arm64/boot/dts/intel/socfpga_agilex.dtsi
+++ b/arch/arm64/boot/dts/intel/socfpga_agilex.dtsi
@@ -20,7 +20,7 @@ reserved-memory {
 
 		service_reserved: svcbuffer@0 {
 			compatible = "shared-dma-pool";
-			reg = <0x0 0x0 0x0 0x1000000>;
+			reg = <0x0 0x0 0x0 0x2000000>;
 			alignment = <0x1000>;
 			no-map;
 		};