ARM: mvebu: switch the Armada XP DB to use internal registers at 0xf1000000

[cascardo/linux.git] / arch / arm / boot / dts / armada-xp-db.dts

diff --git a/arch/arm/boot/dts/armada-xp-db.dts b/arch/arm/boot/dts/armada-xp-db.dts
index bcf6d79..448373c 100644 (file)
--- a/arch/arm/boot/dts/armada-xp-db.dts
+++ b/arch/arm/boot/dts/armada-xp-db.dts
@@ -2,7 +2,7 @@
  * Device Tree file for Marvell Armada XP evaluation board
  * (DB-78460-BP)
  *
- * Copyright (C) 2012 Marvell
+ * Copyright (C) 2012-2014 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/;
@@ -30,7 +39,7 @@
        };
 
        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>;