From 1c3275b656045aff9a75bb2c9f3251af1043ebb3 Mon Sep 17 00:00:00 2001
From: Sudhakar Rajashekhara <sudhakar.raj@ti.com>
Date: Tue, 20 Jul 2010 15:24:01 -0700
Subject: [PATCH] mtd: nand: davinci: correct 4-bit error correction

On TI's DA830/OMAP-L137, DA850/OMAP-L138 and DM365, after setting the
4BITECC_ADD_CALC_START bit in the NAND Flash control register to 1 and
before waiting for the NAND Flash status register to be equal to 1, 2 or
3, we have to wait till the ECC HW goes to correction state.  Without this
wait, ECC correction calculations will not be proper.

This has been tested on DA830/OMAP-L137, DA850/OMAP-L138, DM355 and DM365
EVMs.

Signed-off-by: Sudhakar Rajashekhara <sudhakar.raj@ti.com>
Acked-by: Sneha Narnakaje <nsnehaprabha@ti.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
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