From: Russell King <rmk+lkml@arm.linux.org.uk>
To: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>,
linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: 2.6.15-rc1: IDE: fix potential data corruption with SL82C105 interfaces
Date: Mon, 15 May 2006 18:10:29 +0100 [thread overview]
Message-ID: <20060515171029.GA28140@flint.arm.linux.org.uk> (raw)
In-Reply-To: <4468A6E2.5060305@ru.mvista.com>
On Mon, May 15, 2006 at 08:05:54PM +0400, Sergei Shtylyov wrote:
> >The caching is one bug, the
> >fact the reset hits both channels is the other I know about.
>
> Ah, that register 0x7E reset? Strangely, W83C55[34]F datasheets don't
> even mention it. :-/
They don't - it's an undocumented register as far as the data sheets go,
but if you're lucky enough to have the chip errata, you'll be told to
use it explicitly to work around bugs.
--
Russell King
Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/
maintainer of: 2.6 Serial core
next prev parent reply other threads:[~2006-05-15 17:10 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-11-12 16:55 2.6.15-rc1: IDE: fix potential data corruption with SL82C105 interfaces Russell King
2005-11-12 18:03 ` Alan Cox
2005-11-12 17:46 ` Russell King
2006-05-15 14:32 ` Sergei Shtylyov
2006-05-15 15:25 ` Alan Cox
2006-05-15 16:05 ` Sergei Shtylyov
2006-05-15 16:35 ` Alan Cox
2006-05-15 17:10 ` Russell King [this message]
2005-11-15 13:27 ` Bartlomiej Zolnierkiewicz
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