diff --git a/Targets/LS2K/conf/LS2K.dts b/Targets/LS2K/conf/LS2K.dts
index a1542829..c56d0abe 100644
--- a/Targets/LS2K/conf/LS2K.dts
+++ b/Targets/LS2K/conf/LS2K.dts
@@ -185,7 +185,7 @@
 			#size-cells = <2>;
 			bus-range = <0x10 0x12>;
 			  ranges = <0x02000000 0x0 0x60000000 0x60000000 0x0 0x17ffffff  //mem
-						0x01000000 0x0 0x18400000 0x18400000 0x0 0x1000000>;  //io
+						0x01000000 0x0 0x18400000 0x18400000 0x0 0x100000>;  //io
 		};
 
 		pcie1_port1@78000000 {