diff --git a/arch/arm/boot/dts/artpec6-devboard.dts b/arch/arm/boot/dts/artpec6-devboard.dts
index 9dfe845694cff443ffba59cf252eb7c0233f5404..502f3de6dc5b941984a30c5a71cb3067f4840fc6 100644
--- a/arch/arm/boot/dts/artpec6-devboard.dts
+++ b/arch/arm/boot/dts/artpec6-devboard.dts
@@ -26,7 +26,7 @@
 
 	memory {
 		device_type = "memory";
-		reg = <0x0 0x10000000>;
+		reg = <0x0 0x40000000>;
 	};
 };