Re: multiple separate pci bridges ...
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: 2004-01-06 07:56:05
Mmm, i understand that the 2.6.x pci domain will make this not necessary. I might be wrong though.
What do those register actually do ? Is there a spec of that host bridge I can download somewhere ?
quoted
If you insert pci cards which contain bridges on them, they only work on the bus 0 slots...bus 1 is used as an agp bus anyway, and i doubt there are many agp graphic cards out there with pci bridges on them. When i inserted my Appian Jeronimo 2000 in that board, it refused to powerup at all, but then, maybe it is drawing too much power or something. After all, it has a 3dlabs gamma and two permedia3 on it.quoted
Do you have something like ppcboot or uboot starting your system or just a kernel? If you are using a realWell, there is a customized SmartFirmware OpenFirmware on the board. I even have (non-free though) access to the source of it. The board is mostly a CHRP design.
It has an x86 BIOS emulator for running the firmwares of the video cards ?
boot rom, you could try initializing the p2p registersquoted
by hand, then booting...The Firmware guy told me don't touch it though.quoted
I'm hoping to work on this in the next few days.Ok, great. Friendly, Sven Luther
-- Benjamin Herrenschmidt [off-list ref] ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/