ARM: mvebu: switch the Armada 370 RD board to internal registers at 0xf1000000

Recent bootloader versions from Marvell that have DT support and
various other new features remap the internal registers at
0xf1000000. We have already done this change for most of the
development boards from Marvell, and this commit does this change for
the Marvell Armada 370 RD board.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Link: https://lkml.kernel.org/r/1410961539-10388-1-git-send-email-thomas.petazzoni@free-electrons.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

1 files changed, 10 insertions, 1 deletions

diff --git a/arch/arm/boot/dts/armada-370-rd.dts b/arch/arm/boot/dts/armada-370-rd.dts
index 14c66e4adbc0..f57a8f841498 100644
--- a/arch/arm/boot/dts/armada-370-rd.dts
+++ b/arch/arm/boot/dts/armada-370-rd.dts
@@ -9,6 +9,15 @@
  * 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 0xd0000000 0x100000
+                ranges = <MBUS_ID(0xf0, 0x01) 0 0xf1000000 0x100000
                           MBUS_ID(0x01, 0xe0) 0 0xfff00000 0x100000>;
 
                 pcie-controller {