From: Grant Likely <grant.likely@secretlab.ca>
Date: Tue, 13 Apr 2010 23:12:26 +0000 (-0700)
Subject: of/flattree: Make unflatten_device_tree() safe to call from any arch
X-Git-Tag: v2.6.35-rc1~420^2~11
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8bfe9b5c3a684fe39eb58a65e466c103d1c32c9a;p=pandora-kernel.git

of/flattree: Make unflatten_device_tree() safe to call from any arch

This patch makes unflatten_device_tree() safe to call from any arch
setup code with the following changes:
- Make sure initial_boot_params actually points to a device tree blob
  before unflattening
- Make sure the initial_boot_params->magic field is correct
- If CONFIG_OF_FLATTREE is not set, then make unflatten_device_tree()
  an empty static inline function.

This patch also adds some additional debug output to the top of
unflatten_device_tree().

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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