Date: Thu, 7 Oct 1999 14:25:25 -0600 (MDT) From: "Kenneth D. Merry" <ken@kdm.org> To: wilko@yedi.iaf.nl (Wilko Bulte) Cc: FreeBSD-hackers@FreeBSD.ORG (FreeBSD hackers list) Subject: Re: Turbochannel based Alpha, quickie question Message-ID: <199910072025.OAA96990@panzer.kdm.org> In-Reply-To: <199910071923.VAA01955@yedi.iaf.nl> from Wilko Bulte at "Oct 7, 1999 09:23:07 pm"
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Wilko Bulte wrote...
> Hi there,
>
> I got my hands on an old Turbochannel Alpha machine. I'm currently
> in the process of attempting to install 3.3-Rel on it.
>
> Unfortunately it does not detect any disks:
>
> Entering kernel at 0xfffffc0000320fc0...
> Copyright (c) 1992-1999 FreeBSD Inc.
> Copyright (c) 1982, 1986, 1989, 1991, 1993
> The Regents of the University of California. All rights reserved.
> FreeBSD 3.3-RELEASE #0: Thu Sep 16 16:33:09 GMT 1999
> jkh@beast.cdrom.com:/usr/src/sys/compile/BOOTMFS
> DEC 3000/500 ("Flamingo")
> DEC 3000 - M400, 133MHz
> 8192 byte page size, 1 processor.
> CPU: EV4 (21064) major=2 minor=1
[ ... ]
> I have the distinct (bad) feeling this is due to:
>
> # A single entry for any of these controllers (ncr, ahb, ahc, amd) is
> # sufficient for any number of installed devices.
> controller ncr0
> controller isp0
> #controller esp0
>
> in GENERIC. I mean, esp is the driver for the 53C94 ncr scsi chip.
> Is there any particular reason why it is commented out in GENERIC?
> Floppy disk size limit maybe?
The esp driver hasn't been ported to CAM. Are you volunteering? :)
One other, perhaps easier task might be to write a TurboChannel front end
for the AMD driver. Supposedly the AMD 53c974 and NCR 53C94 are pretty
much the same chip.
The NetBSD esp driver might be a good place to look for clues.
Until the esp driver is ported, or someone makes the AMD driver work with
those chips, you'll have to boot the machine diskless.
Ken
--
Kenneth Merry
ken@kdm.org
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