Date: Mon, 15 May 2006 18:10:29 +0100
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
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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
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