Subject: Re: PATA disk drive not being configured in 2.0.2
To: Dieter <netbsd@sopwith.solgatos.com>
From: Manuel Bouyer <bouyer@antioche.lip6.fr>
List: port-alpha
Date: 06/15/2005 13:04:46
On Tue, Jun 14, 2005 at 07:53:06PM +0100, Dieter wrote:
> > I don't think it can. I suspect a software issue at the SRM level (not
> > assigning a proper address to the DMA registers). Maybe the adapter you
> > added changed a non-volatile state somewhere. If possible, try to remove
> > all the adapters you added, and reset the SRM to factory defaults (I don't know
> > how to do that last part, but I guess there is a way to do it - maybe involves
> > a jumper setting).
> 
> I finally made a little progress:
> 
> I tried booting from a couple of CDs.  SRM successfully read data from the
> drive and attempted to boot.  The boots failed, but it doesn't look like
> it was the CMD controller's fault.  So... the controller is NOT dead!

No it's not. But the SRM maps it DMA registers to the wrong address.
I suspect that SRM don't use DMA to boot from CD.

-- 
Manuel Bouyer <bouyer@antioche.eu.org>
     NetBSD: 26 ans d'experience feront toujours la difference
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