MVME 5100
-----Ursprungliche Nachricht-----
Von: Matt Porter [SMTP:[email protected]]
Gesendet am: Freitag, 15. Dezember 2000 23:38
An: Torsten Rissel
Cc: Linuxppc-Embedded (E-Mail)
Betreff: Re: MVME 5100
Quoted 3 lines · Torsten Rissel
Thanks, but I have already set up a BAT to cover the area from
0xf0000000-0xffffffffbecause 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.
Quoted 3 lines
The
CONFIG_ADDRESSandCONFIG_DATAregisters are onfe000cf8and fe00cfc, and still writing to theCONFIG_ADDRESSand then reading theCONFIG_DATAsometime 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.
[Torsten Rissel] I never saw any problem with PPCBUG neither, still, during kernel startup it sometimes works and sometimes not. Now it works a little bit better, because I found out that the BAT configuration constructed in mapin_ram() didn't work properly.
What kernel version are you using as a basis for your port? Are you basing the port off the existing prep_*.c support?
[Torsten Rissel] I've downloaded linuxppc-2-2-snap-tar.gz from fsmlabs (It's my first try with linux on PowerPCs, so I just took more or less the first I read about).
And, yes, I set CONFIG_6xx, CONFIG_PPC, CONFIG_PREP and one I invented (CONFIG_MVME51xx). I use PREP-style network boot from PPCBUG. In the moment I try to get the eepro100 driver working, because I want to use a root-fs on NFS.
[Torsten Rissel] Regards, Torsten
--
Matt Porter
MontaVista Software, Inc.
[email protected]
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