diff --git a/arch/arm/boot/dts/socfpga.dtsi b/arch/arm/boot/dts/socfpga.dtsi
index da689659131f..de291724e0be 100644
--- a/arch/arm/boot/dts/socfpga.dtsi
+++ b/arch/arm/boot/dts/socfpga.dtsi
@@ -516,7 +516,7 @@
 		fpgamgr0: fpgamgr@ff706000 {
 			compatible = "altr,socfpga-fpga-mgr";
 			reg = <0xff706000 0x1000
-			       0xffb90000 0x1000>;
+			       0xffb90000 0x4>;
 			interrupts = <0 175 4>;
 		};