Date: Wed, 7 Nov 2007 22:54:53 +0000
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Mark Lord <liml@rtr.ca>
Cc: Denys Fedoryshchenko <denys@visp.net.lb>,
       James Andrewartha <jamesa@daa.com.au>,
       Andrew Morton <akpm@linux-foundation.org>, linux-kernel@vger.kernel.org,
       linux-ide@vger.kernel.org, htejun@gmail.com
Subject: Re: SC1200 failure in 2.6.23 and 2.6.24-rc1-git10
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> CFA spec requires 848a in word[0], not 844a, which explains
> why hdparm thought it might be ATAPI.  I've updated my hdparm
> source to detect this for hdparm-7.8 (unreleased).
> That card (16MB) is definitely buggy.
> But your other (1GB) card looks fine.
> 
> Thanks.  Somebody else may help with the libata issue.

848A is the preferred configuration value

The use of 044A is also allowed in the case of it being non-removable.
Guess someone got muddled up in the middle.

844A is a bit iffy and it should still be detectable as Word 83 bit 2
should be set ?


As to the old IDE (not libata ?) issue - I suspect a convertor without
DMA support as a first guess.

Alan
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