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Re: challenge s boots linux

To: ralf@uni-koblenz.de
Subject: Re: challenge s boots linux
From: Richard Hartensveld <richardh@infopact.nl>
Date: Thu, 24 Sep 1998 02:17:08 +0200
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>, Alex deVries <adevries@engsoc.carleton.ca>, Rob Lembree <lembree@sgi.com>, linux@cthulhu.engr.sgi.com
References: <36081982.8D3B6975@infopact.nl> <Pine.LNX.3.96.980922201845.10292B-100000@lager.engsoc.carleton.ca> <19980923212241.01963@alpha.franken.de> <19980924015938.K2843@uni-koblenz.de>
Sender: owner-linux@cthulhu.engr.sgi.com
ralf@uni-koblenz.de wrote:

> On Wed, Sep 23, 1998 at 09:22:41PM +0200, Thomas Bogendoerfer wrote:
>
> > On Tue, Sep 22, 1998 at 08:24:20PM -0400, Alex deVries wrote:
> > >     First, I wonder how much of the kernel will actually work on the
> > > Challenge S; I'm told there are SCSI controller differences.
> >
> > looking linus.linux.sgi.com, which is AFAIK a Challenge S, it seems the
> > Challenge has a wd33c93 and a wd33c95. The wd33c93 is what we already 
> > support.
> > As long as the harddisk are attached to it, it should work. The wd33c95
> > is a rather strange chip, and from the datasheet I have here, it looks like
> > a lot of work to write a driver for it, because besides the kernel code,
> > you have to write sequence code for the chip, too.
>
> Did I missunderstand the 95's documentation - I thought we can abuse the
> 95 as a 93, thereby saving alot of driver work for now?
>

My experience is that the wd93 driver doens't work with the wd95 controller, 
maybe
someone else hassuccessfully tried this?

Richard



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