From: Max Filippov <jcmvbkbc@gmail.com>
Date: Fri, 3 Oct 2014 23:46:34 +0000 (+0400)
Subject: xtensa: nommu: reserve memory below PLATFORM_DEFAULT_MEM_START
X-Git-Tag: omap-for-v3.20/drop-legacy-3517~64^2~4^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=566fb58ed422537715023d1f19b705247a640b11;p=pandora-kernel.git

xtensa: nommu: reserve memory below PLATFORM_DEFAULT_MEM_START

Memory accounting code can't handle pages below
PLATFORM_DEFAULT_MEM_START. Reserve those pages if they exist.
When PLATFORM_DEFAULT_MEM_START is zero reserve one page at address 0 to
make sure that successfull memory allocations don't return NULL.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
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