MVME 5100

[Matt Porter]

On Thu, Dec 14, 2000 at 04:25:55PM +0100, Torsten Rissel wrote:
> Thanks, but I have already set up a BAT to cover the area from 0xf0000000 - 0xffffffff
> because everything is there on the MVME5100 - the serial ports (via the Hawk external
> registers) [fef88000+], the MPIC [f3f80000+] and the PHC PCI registers [fe000000+].

Right, I have one as well as a similar Hawk-based board that has Linux
on it.

> The CONFIG_ADDRESS and CONFIG_DATA registers are on fe000cf8 and fe00cfc,
> and still writing to the CONFIG_ADDRESS and then reading the CONFIG_DATA sometime
> works and sometimes not !!!??

I can consistently read from and write to config space on my 5100 board
via PPCBUG.  The only thing I can think of is that you have somehow
locked up the Hawk bridge.  I've managaged this on other host bridges
only by getting a PIB locked up and squatting on the bus.

What kernel version are you using as a basis for your port?  Are you
basing the port off the existing prep_*.c support?

--
Matt Porter
MontaVista Software, Inc.
mporter at mvista.com

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