From: Matthew Leach <matthew.leach@arm.com>
Date: Fri, 21 Sep 2012 17:56:02 +0000 (+0100)
Subject: ARM: 7539/1: kexec: scan for dtb magic in segments
X-Git-Tag: omap-for-v3.7-rc1/fixes-hwmod-clock-signed-v3~1^2~2^5~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4cabd1d9625c7d88acd143f4021fbef75394f154;p=pandora-kernel.git

ARM: 7539/1: kexec: scan for dtb magic in segments

This patch allows a dtb to be passed to a new kernel using the kexec
mechinism.

When loading segments from userspace, scan each segment's first four
bytes for the dtb magic. If this is found set the kexec_boot_atags
parameter to the relocate_kernel code to the phyical address of this
segment.

Reviewed-by: Simon Horman <horms@verge.net.au>
Reviewed-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Matthew Leach <matthew.leach@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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