diff --git a/arch/arm/boot/dts/armada-xp-gp.dts b/arch/arm/boot/dts/armada-xp-gp.dts
index 274e2ad5f51c..61bda687f782 100644
--- a/arch/arm/boot/dts/armada-xp-gp.dts
+++ b/arch/arm/boot/dts/armada-xp-gp.dts
@@ -2,7 +2,7 @@
  * Device Tree file for Marvell Armada XP development board
  * (DB-MV784MP-GP)
  *
- * Copyright (C) 2013 Marvell
+ * Copyright (C) 2013-2014 Marvell
  *
  * Lior Amsalem <alior@marvell.com>
  * Gregory CLEMENT <gregory.clement@free-electrons.com>
@@ -11,6 +11,15 @@
  * This file is licensed under the terms of the GNU General Public
  * License version 2.  This program is licensed "as is" without any
  * warranty of any kind, whether express or implied.
+ *
+ * Note: this Device Tree assumes that the bootloader has remapped the
+ * internal registers to 0xf1000000 (instead of the default
+ * 0xd0000000). The 0xf1000000 is the default used by the recent,
+ * DT-capable, U-Boot bootloaders provided by Marvell. Some earlier
+ * boards were delivered with an older version of the bootloader that
+ * left internal registers mapped at 0xd0000000. If you are in this
+ * situation, you should either update your bootloader (preferred
+ * solution) or the below Device Tree should be adjusted.
  */
 
 /dts-v1/;
@@ -30,16 +39,17 @@
                  * 8 GB of plug-in RAM modules by default.The amount
                  * of memory available can be changed by the
                  * bootloader according the size of the module
-                 * actually plugged. Only 7GB are usable because
-                 * addresses from 0xC0000000 to 0xffffffff are used by
-                 * the internal registers of the SoC.
+                 * actually plugged. However, memory between
+                 * 0xF0000000 to 0xFFFFFFFF cannot be used, as it is
+                 * the address range used for I/O (internal registers,
+                 * MBus windows).
 		 */
-		reg = <0x00000000 0x00000000 0x00000000 0xC0000000>,
+		reg = <0x00000000 0x00000000 0x00000000 0xf0000000>,
 		      <0x00000001 0x00000000 0x00000001 0x00000000>;
 	};
 
 	soc {
-		ranges = <MBUS_ID(0xf0, 0x01) 0 0 0xd0000000 0x100000
+		ranges = <MBUS_ID(0xf0, 0x01) 0 0 0xf1000000 0x100000
 			  MBUS_ID(0x01, 0x1d) 0 0 0xfff00000 0x100000
 			  MBUS_ID(0x01, 0x2f) 0 0 0xf0000000 0x1000000>;