[PATCH 4/4] ARM: mvebu: the Armada XP Matrix board has 4 GB

[Thomas Petazzoni]

Since the Armada XP Matrix board has 4 GB of RAM and not 2 GB, we
update the Device Tree to take into account the correct amount of
memory. As noted in the new comment, the last 256 MB of RAM are in
fact not usable, due to the overlap with the MBus Window address
range.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
---
 arch/arm/boot/dts/armada-xp-matrix.dts | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/armada-xp-matrix.dts b/arch/arm/boot/dts/armada-xp-matrix.dts
index e47c49e..c224274 100644
--- a/arch/arm/boot/dts/armada-xp-matrix.dts
+++ b/arch/arm/boot/dts/armada-xp-matrix.dts
@@ -23,7 +23,12 @@
 
 	memory {
 		device_type = "memory";
-		reg = <0 0x00000000 0 0x80000000>; /* 2 GB */
+		/*
+		 * This board has 4 GB of RAM, but the last 256 MB of
+		 * RAM are not usable due to the overlap with the MBus
+		 * Window address range
+		 */
+		reg = <0 0x00000000 0 0xf0000000>;
 	};
 
 	soc {
-- 
1.8.3.2