From: Liviu Dudau <Liviu.Dudau@arm.com>
Date: Mon, 9 Jun 2014 15:27:10 +0000 (+0100)
Subject: arm64: Juno: Carve out memory reserved for secure access.
X-Git-Tag: firefly_0821_release~3680^2~36^2~66^2
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=804bf578437c1ff33930aa73c8e536532608691a;p=firefly-linux-kernel-4.4.55.git

arm64: Juno: Carve out memory reserved for secure access.

Trusted Firmware 0.4 reserves the top 16MB of RAM available
in the first 4GB address space for the secure world use.
Carve out that memory from the device tree to avoid triggering
faults when accessing protected memory.

Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: Jon Medhurst <tixy@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---

diff --git a/arch/arm64/boot/dts/juno.dts b/arch/arm64/boot/dts/juno.dts
index 9785a14ca604..f260d702041c 100644
--- a/arch/arm64/boot/dts/juno.dts
+++ b/arch/arm64/boot/dts/juno.dts
@@ -68,7 +68,7 @@
 
 	memory@80000000 {
 		device_type = "memory";
-		reg = <0x00000000 0x80000000 0x0 0x80000000>,
+		reg = <0x00000000 0x80000000 0x0 0x7f000000>,
 		      <0x00000008 0x80000000 0x1 0x80000000>;
 	};