From: Juergen Beisert <jbe@pengutronix.de>
To: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Vladimir Barinov <vova.barinov@gmail.com>,
mathieu.berland@eads.com, linux-mtd@lists.infradead.org,
Eric Benard <ebenard@eukrea.com>
Subject: Re: About the mxc nand driver
Date: Tue, 20 Oct 2009 15:28:54 +0200 [thread overview]
Message-ID: <200910201528.55271.jbe@pengutronix.de> (raw)
In-Reply-To: <20091020131157.GR8818@pengutronix.de>
On Dienstag, 20. Oktober 2009, Sascha Hauer wrote:
> [...]
> The original Freescale driver uses this ecc layout for 8/16 bit busses:
>
> static struct nand_ecclayout nand_hw_eccoob_8 = {
> .eccbytes = 5,
> .eccpos = {6, 7, 8, 9, 10},
> .oobfree = {{0, 5}, {11, 5}}
> };
This one is bogus, as it describes an 8 byte OOB with more than 8 bytes... In
the current driver this layout is used for soft ECC. Maybe this is the
reason, why there wasn't any failure messages, because all people are using
hardware ECC.
jbe
--
Pengutronix e.K. | Juergen Beisert |
Linux Solutions for Science and Industry | Phone: +49-8766-939 228 |
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next prev parent reply other threads:[~2009-10-20 13:29 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-20 13:11 About the mxc nand driver Sascha Hauer
2009-10-20 13:28 ` Juergen Beisert [this message]
2009-10-20 13:32 ` Sascha Hauer
2009-10-21 11:30 ` Gianluca Renzi
2009-10-22 10:26 ` Juergen Beisert
2009-10-22 21:17 ` alfred steele
2009-10-23 8:19 ` Juergen Beisert
[not found] <2132956280B09448AB947D9C8A291AC6011F88BE@SMFIDF806A.main.fr.ds.corp>
2009-10-20 17:08 ` Juergen Beisert
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