From 0a6a78b8b3c1c1757fbeca4bbf518e44c70c9e4b Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Thu, 26 Mar 2015 09:41:33 +0000
Subject: [PATCH] ARM: add documentation for finding start of physical memory

Occasionally, there's a question about the method we use to find the
start of physical memory.  Add some documentation so we don't have to
keep repeating outselves on the mailing list.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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