From mboxrd@z Thu Jan 1 00:00:00 1970 Subject: Re: multiple separate pci bridges ... From: Benjamin Herrenschmidt To: Sven Luther Cc: Marcus Barrow , linuxppc-dev list In-Reply-To: <20040106071412.GB735@iliana> References: <20040101181145.GA27294@iliana> <1073016223.1502.179.camel@gaston> <20040102074049.GA2032@iliana> <1073029796.1501.228.camel@gaston> <20040104210335.GA858@iliana> <1073252724.780.5.camel@gaston> <20040104220608.GA1667@iliana> <20040105164038.GA16158@iliana> <1073338730.9456.2487.camel@boat.sangate.com> <20040106071412.GB735@iliana> Content-Type: text/plain Message-Id: <1073375765.9499.215.camel@gaston> Mime-Version: 1.0 Date: Tue, 06 Jan 2004 18:56:05 +1100 Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: > > 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 ? > > 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. > > > Do you have something like ppcboot or uboot starting > > your system or just a kernel? If you are using a real > > Well, 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 registers > > by hand, then booting... > > The Firmware guy told me don't touch it though. > > > I'm hoping to work on this in the next few days. > > Ok, great. > > Friendly, > > Sven Luther > -- Benjamin Herrenschmidt ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/