From: Geert Uytterhoeven <geert+renesas@glider.be>
Date: Tue, 6 Jan 2015 19:17:39 +0000 (+0100)
Subject: ARM: shmobile: kzm9g-reference dts: Declare the full 512 MiB of RAM
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=3ce1bc08efdd1c1dfba123e802604c0e853ae5db;p=deliverable%2Flinux.git

ARM: shmobile: kzm9g-reference dts: Declare the full 512 MiB of RAM

Traditionally, the first 16 MiB of RAM was reserved for the RT
processor.  However, this is incompatible with CONFIG_AUTO_ZRELADDR=y,
which requires that the start address of physical memory is a multiple
of 128 MiB.

As CONFIG_AUTO_ZRELADDR=y is enabled for multi-platform kernels, declare
RAM to start at 0x40000000.

While at it, reclaim the last 8 MiB of RAM, too, so the full 512 MiB is
available. Note that kzm9g_defconfig still has
CONFIG_MEMORY_START=0x41000000 and CONFIG_MEMORY_SIZE=0x1f000000, so
before the advent of DT we scribbled over the last 8 MiB, too.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---

diff --git a/arch/arm/boot/dts/sh73a0-kzm9g-reference.dts b/arch/arm/boot/dts/sh73a0-kzm9g-reference.dts
index 0156fc8e9e4d..bf365f7fef47 100644
--- a/arch/arm/boot/dts/sh73a0-kzm9g-reference.dts
+++ b/arch/arm/boot/dts/sh73a0-kzm9g-reference.dts
@@ -45,7 +45,7 @@
 
 	memory {
 		device_type = "memory";
-		reg = <0x41000000 0x1e800000>;
+		reg = <0x40000000 0x20000000>;
 	};
 
 	reg_1p8v: regulator@0 {