From mboxrd@z Thu Jan  1 00:00:00 1970
From: Scott Wood <scottwood@freescale.com>
Date: Mon, 10 Nov 2008 12:33:25 -0600
Subject: [U-Boot] OMAP3 broken NAND hardware ECC generation
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Dirk Behme wrote:
> I'm not sure, but it seems to me, that omap_enable_hwecc() is never 
> called. An printf() in this function is not shown.
> 
> Maybe call of nand_scan_tail(mtd); in omap_nand_switch_ecc() resets 
> anything? Or any other idea?

You never cleared out nand->ecc.write_page (and others), so 
nand_scan_tail() saw that they were non-NULL and assumed you were 
overriding them, and you got the soft-ECC versions of those, but the 
hard-ECC calculate method.

-Scott