From: "William J. Earl" <wje@fir.engr.sgi.com>
To: ralf@uni-koblenz.de
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
linux-mips@fnet.fr, linux@cthulhu.engr.sgi.com
Subject: Re: strange problem with my oli M700
Date: Thu, 29 Jan 1998 16:20:12 -0800 [thread overview]
Message-ID: <199801300020.QAA02574@fir.engr.sgi.com> (raw)
In-Reply-To: <19980129221750.18001@uni-koblenz.de>
ralf@uni-koblenz.de writes:
> On Thu, Jan 29, 1998 at 09:27:05PM +0100, Thomas Bogendoerfer wrote:
>
> > I'm trying to read the firmware prom of my Olivetti M700 (Magnum 4000 clone).
> > When access the address 0x9fc00000 (which is the KSEG0 address of the prom)
> > the box freezes immidiately. Does anybody know why ? And how could I access
> > the prom otherwise ?
>
> Did you try uncached accesses via KSEG1? I wouldn't wonder if the used
> PROMs can't cope with the bursts generated for filling a cacheline.
I am pretty certain that is the case for the Magnum. That is, you
must use 0xbfc00000, not 0x9fc00000.
next prev parent reply other threads:[~1998-01-30 0:24 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
1998-01-29 20:27 strange problem with my oli M700 Thomas Bogendoerfer
1998-01-29 21:17 ` ralf
1998-01-29 21:24 ` ralf
1998-01-29 21:49 ` New to group Jeremy Welling
1998-01-29 23:00 ` strange problem with my oli M700 Thomas Bogendoerfer
1998-01-30 0:20 ` William J. Earl [this message]
1998-01-30 14:08 ` Andrew Dyer
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