Subject: Re: NCR 53c875 PCI SCSI does not work on CATS
To: None <simonb@netbsd.org>
From: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
List: port-arm32
Date: 03/25/2000 22:03:23
In <200003251039.VAA15620@balrog.supp.cpr.itg.telecom.com.au>
simonb@netbsd.org wrote:

> These are very similar to the messages I got from an 53c810a when I
> tried to upgrade from 1.3.3 to 1.4.1 in an i386:
> 
> 	CACHE TEST FAILURE: host wrote 1, ncr read 3827772
> 	CACHE TEST FAILURE: ncr wrote 2, host read 0
> 	CACHE INCORRECTLY CONFIGURED
> 
> That was on an overclock amd586 and it was suggested that I drop the
> clock rate, but I never got to try that.  Is there any analogy to
> overclocking in the CATS world?

I think PCI bus on 486 based system only supports I/O mapped,
and ncr.c (changed after 1.3-release?) no longer works
with I/O mapped.

BTW, it seems there is a project to rewrite ncr driver
in "current project" pages. ;-)
---
Izumi Tsutsui
tsutsui@ceres.dti.ne.jp