diff --git a/arch/powerpc/boot/dts/turris1x.dts b/arch/powerpc/boot/dts/turris1x.dts
index 6612160..dff1ea0 100644
--- a/arch/powerpc/boot/dts/turris1x.dts
+++ b/arch/powerpc/boot/dts/turris1x.dts
@@ -476,12 +476,12 @@
 		 * channel 1 (but only USB 2.0 subset) to USB 2.0 pins on mPCIe
 		 * slot 1 (CN5), channels 2 and 3 to connector P600.
 		 *
-		 * P2020 PCIe Root Port uses 1MB of PCIe MEM and xHCI controller
+		 * P2020 PCIe Root Port does not use PCIe MEM and xHCI controller
 		 * uses 64kB + 8kB of PCIe MEM. No PCIe IO is used or required.
-		 * So allocate 2MB of PCIe MEM for this PCIe bus.
+		 * So allocate 128kB of PCIe MEM for this PCIe bus.
 		 */
 		reg = <0 0xffe08000 0 0x1000>;
-		ranges = <0x02000000 0x0 0xc0000000 0 0xc0000000 0x0 0x00200000>, /* MEM */
+		ranges = <0x02000000 0x0 0xc0000000 0 0xc0000000 0x0 0x00020000>, /* MEM */
 			 <0x01000000 0x0 0x00000000 0 0xffc20000 0x0 0x00010000>; /* IO */
 
 		pcie@0 {