diff --git a/target/linux/ramips/dts/FIREWRT.dts b/target/linux/ramips/dts/FIREWRT.dts
index 8ffb5ea546..bfe1456461 100644
--- a/target/linux/ramips/dts/FIREWRT.dts
+++ b/target/linux/ramips/dts/FIREWRT.dts
@@ -8,7 +8,7 @@
 
 	memory@0 {
 		device_type = "memory";
-		reg = <0x0 0x10000000>, <0x30000000 0x10000000>;
+		reg = <0x0 0x1c000000>, <0x20000000 0x4000000>;
 	};
 
 	chosen {