-----Ursprungliche Nachricht----- Von: Matt Porter [SMTP:mporter at mvista.com] Gesendet am: Freitag, 15. Dezember 2000 23:38 An: Torsten Rissel Cc: Linuxppc-Embedded (E-Mail) Betreff: Re: MVME 5100
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. [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. mporter at mvista.com ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
