From: Catalin Marinas <catalin.marinas@arm.com>
Date: Thu, 14 Nov 2013 15:15:37 +0000 (+0000)
Subject: arm64: dts: Reserve the memory used for secondary CPU release address
X-Git-Url: http://git.mmlx.us/?a=commitdiff_plain;h=29f37087bb51dfe4ff61daad60bd93f7bcfa3d72;p=linux-edison.git

arm64: dts: Reserve the memory used for secondary CPU release address

commit df503ba7f653c590b475ab80bde788edf5af70d5 upstream.

With the spin-table SMP booting method, secondary CPUs poll a location
passed in the DT. The foundation-v8.dts file doesn't have this memory
reserved and there is a risk of Linux using it before secondary CPUs are
started.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/arch/arm64/boot/dts/foundation-v8.dts b/arch/arm64/boot/dts/foundation-v8.dts
index 84fcc501828..519c4b2c068 100644
--- a/arch/arm64/boot/dts/foundation-v8.dts
+++ b/arch/arm64/boot/dts/foundation-v8.dts
@@ -6,6 +6,8 @@
 
 /dts-v1/;
 
+/memreserve/ 0x80000000 0x00010000;
+
 / {
 	model = "Foundation-v8A";
 	compatible = "arm,foundation-aarch64", "arm,vexpress";