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Re: strange problem with my oli M700

To: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Subject: Re: strange problem with my oli M700
From: ralf@uni-koblenz.de
Date: Thu, 29 Jan 1998 22:24:48 +0100
Cc: linux-mips@fnet.fr, linux@cthulhu.engr.sgi.com
In-reply-to: <19980129221750.18001@uni-koblenz.de>; from ralf@uni-koblenz.de on Thu, Jan 29, 1998 at 10:17:50PM +0100
References: <19980129212705.29618@alpha.franken.de> <19980129221750.18001@uni-koblenz.de>
On Thu, Jan 29, 1998 at 10:17:50PM +0100, ralf@uni-koblenz.de 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.

Which btw reminds me that enabling the second level cache on a Indy also
makes call into the ARC firmware crash.  Dunno why.

  Ralf

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