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From: Tobias Hoffmann <lk-list@the-axe-effect.de>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: linux-kernel@vger.kernel.org
Subject: Re: drive side 80-wire cable detection failed
Date: Sun, 04 Nov 2007 01:34:44 +0100	[thread overview]
Message-ID: <472D13A4.5080906@the-axe-effect.de> (raw)
In-Reply-To: <20071103232040.33a2fa09@the-village.bc.nu>

Alan Cox wrote:
>> On my NV3 board with a Samsung SP1634N Harddisk I wrongly got
>> "drive side 80-wire cable detection failed" with the current kernel.
> 
> Does the drive cable detect correctly on a non Nvidia chipset ?
> 
I have no box here to test this - my laptop won't help.

But I did another test:

I replaced the 80-wire cable with a 40-wire cable. Then the BIOS warns 
about "no 80-wire cable connected". The kernel boot and seems to enable 
UDMA100 which leads to some BadCRC errors. After that the drive is in 
udma3-mode(hdparm) IIRC but not in udma5, as when using the right cable.

Maybe it's not that clever to add the drive to the ivb_list?

As far as I understood it, pata_acpi should fix the problem, but I'm not 
sure on the required configuration. Do I have to disable the normal 
IDE-support? How 'experimental' is the PATA support?


   Tobias

  reply	other threads:[~2007-11-04  0:35 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-11-03 23:09 drive side 80-wire cable detection failed Tobias Hoffmann
2007-11-03 23:20 ` Alan Cox
2007-11-04  0:34   ` Tobias Hoffmann [this message]
2007-11-05 22:46     ` Alan Cox

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