tree 8c717a9b1135da1f75ddf7cacd6ab7e6345a4f95
parent 7b333e0ef8a1efa488ad98956c6701884b0c2b4b
author Daniel Mack <zonque@gmail.com> 1307440867 -0700
committer Greg Kroah-Hartman <gregkh@suse.de> 1321033036 -0800

mtd: pxa3xx_nand: Fix blank page ECC mismatch

commit 543e32d5ff165d0d68deedb0e3557478c7c36a4a upstream.

This bug was introduced in f8155a40 ("mtd: pxa3xx_nand: rework irq
logic") and causes the PXA3xx NAND controller fail to operate with NAND
flash that has empty pages. According to the comment in this block, the
hardware controller will report a double-bit error for empty pages,
which can and must be ignored.

This patch restores the original behaviour of the driver.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Acked-by: Lei Wen <leiwen@marvell.com>
Cc: Haojian Zhuang <haojian.zhuang@marvell.com>
Cc: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>