From: David Woodhouse <dwmw2@infradead.org>
To: justin.ipsen@ctam.com.au
Cc: linux-mtd@lists.infradead.org
Subject: Re: ECC Reset problems
Date: Wed, 13 Mar 2002 09:17:32 +0000 [thread overview]
Message-ID: <25659.1016011052@redhat.com> (raw)
In-Reply-To: <3C8F04B4.D745D633@ctam.com.au>
justin.ipsen@ctam.com.au said:
> I'm running linux 2.4.1-pre11 on a powerPC platform. I have been
> using a 32M doc2000 with no problems. I've just started to use a 48M
> doc2000 but the On-Chip ECC engine seems to work just once after reset
> and not again. It looks like the "ECC Config" Resets function has
> stopped working?
Hmmm. I can't see any documented timing constraints on the ECC Reset. But
try adding a delay between...
/* Prime the ECC engine */
WriteDOC(DOC_ECC_RESET, docptr, ECCConf);
WriteDOC(DOC_ECC_EN, docptr, ECCConf);
Might also be worth looking in include/linux/mtd/doc2000.h and changing the
definition of DOC_ECC_RESET to DOC_ECC_RESV instead of zero.
--
dwmw2
next prev parent reply other threads:[~2002-03-13 9:06 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-03-13 7:50 ECC Reset problems Justin Ipsen
2002-03-13 9:17 ` David Woodhouse [this message]
2002-03-13 23:50 ` Justin Ipsen
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