[PATCH RESEND v5 4/5] omap: nand: ecc layout select from board file
notasas at gmail.com
Thu Nov 4 07:32:57 EDT 2010
On Thu, Nov 4, 2010 at 1:15 PM, Ghorai, Sukumar <s-ghorai at ti.com> wrote:
>> -----Original Message-----
>> From: Grazvydas Ignotas [mailto:notasas at gmail.com]
>> Sent: Thursday, November 04, 2010 4:42 PM
>> To: Ghorai, Sukumar
>> Cc: linux-omap at vger.kernel.org; linux-mtd at lists.infradead.org; linux-arm-
>> kernel at lists.infradead.org; Artem.Bityutskiy at nokia.com; Vimal Singh; Tony
>> Subject: Re: [PATCH RESEND v5 4/5] omap: nand: ecc layout select from
>> board file
>> > [Ghorai] In 2.6.36, it's a s/w ecc by default and working in all
>> platforms like - omap3430 SDP, zoom2, 3630SDP, ZOOM3.
>> > So please explain more when you found that - sw ecc is broken on both
>> It doesn't for me, see
>> This is omap NAND driver at v2.6.36 tag, and it has
>> CONFIG_MTD_NAND_OMAP_HWECC forced.
> [Ghorai] This is the same old code since log. And this portion of code not touched for 2.6.36.
> And please let me know what kind of problem you are facing when you using 2.6.36; also let me know how to reproduce, I can check in my platform too.
It has changed in 2.5.36, take a look how it was in 2.6.35, when it
worked for me:
notice how 2.5.36 has CONFIG_MTD_NAND_OMAP_HWECC defined and 2.6.35 doesn't.
The test case is simple:
format and use NAND on 2.6.35 or earlier, works fine.
upgrade to 2.6.36 or 2.6.37-rc1 and try to mount the same NAND
partition - lots of ECC errors.
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