linux-kernel - Re: SC1200 failure in 2.6.23 and 2.6.24-rc1-git10

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Date:	Wed, 7 Nov 2007 22:54:53 +0000
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Mark Lord <liml@....ca>
Cc:	Denys Fedoryshchenko <denys@...p.net.lb>,
	James Andrewartha <jamesa@....com.au>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, linux-ide@...r.kernel.org,
	htejun@...il.com
Subject: Re: SC1200 failure in 2.6.23 and 2.6.24-rc1-git10

> 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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