From: Ian Molton <ian@mnementh.co.uk>
To: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: dbaryshkov@gmail.com, linux-mtd@lists.infradead.org
Subject: Re: abuse of nand_correct_data in tmio_nand driver
Date: Tue, 28 Jul 2009 15:35:19 +0100 [thread overview]
Message-ID: <4A6F0CA7.70006@mnementh.co.uk> (raw)
In-Reply-To: <20090728.231156.126763891.anemo@mba.ocn.ne.jp>
Atsushi Nemoto wrote:
> On Tue, 28 Jul 2009 14:57:05 +0100, Ian molton <spyro@f2s.com> wrote:
>>>> The current nand_correct_data() can be used for ecc.bytes = 3 case
>>>> only. The tmio_nand driver uses ecc.bytes = 6.
>>> IIRC, tmio_nand driver accesses two ecc "sectors" at once, so this is
>>> most probably ok. I'll look into it though, when I have some time.
>> Are we really the only chip that does this?
>
> TXx9 NDFMC can read 6 byte ECC (for two 256 byte sectors) at a time.
> I will try to see if doing it increase performance or not.
Cool,
If theres more than one chip that can do this, I think the change should
go in the core mmc code.
prev parent reply other threads:[~2009-07-28 14:35 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-14 14:05 abuse of nand_correct_data in tmio_nand driver Atsushi Nemoto
2009-07-19 0:11 ` Dmitry Eremin-Solenikov
2009-07-19 15:14 ` Atsushi Nemoto
2009-07-19 16:08 ` Dmitry Eremin-Solenikov
2009-07-20 5:15 ` vimal singh
2009-07-21 15:20 ` Atsushi Nemoto
2009-07-22 8:43 ` vimal singh
2009-07-22 15:13 ` Atsushi Nemoto
2009-07-23 7:04 ` vimal singh
2009-07-23 15:11 ` Atsushi Nemoto
2009-07-24 17:24 ` Dmitry Eremin-Solenikov
2009-07-26 13:03 ` vimal singh
2009-07-28 13:57 ` Ian molton
2009-07-28 14:11 ` Atsushi Nemoto
2009-07-28 14:35 ` Ian Molton [this message]
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