From: Bastian Hecht <hechtb@googlemail.com>
Date: Mon, 14 May 2012 12:14:46 +0000 (+0200)
Subject: mtd: sh_flctl: Restructure the hardware ECC handling
X-Git-Tag: v3.7-rc1~70^2~159
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6667a6d58e25d351d8fce7a628a8c9c139a8bdc9;p=pandora-kernel.git

mtd: sh_flctl: Restructure the hardware ECC handling

There are multiple reasons for a rewrite:
 - a race exists: when _4ECCEND is set, _4ECCFA may become true too
   meanwhile, which is lost and a non-correctable error is treated as
   correctable.
 - the ECC statistics don't get properly propagated to the base code.
 - empty pages would get marked as corrupted

The rewrite resolves the issues and I hope it gives a more explicit
code flow structure.

Signed-off-by: Bastian Hecht <hechtb@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
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