On Mon, Dec 10, 2007 at 10:08:30AM -0800, Steve Isaacs wrote: > > For the PCI parts, LinuxBIOS sets up the static/onboard devices and scans > > for other devices dynamically, if I'm not mistaken. > > This means you do not specify PCI/AGP/PCIe extention cards in Config.lb, > > they're rather detected at runtime. > > > By "dynamic" is it meant devices for which it is possible to set the > device ID (DID) in the PCI configuration space? Which means that devices > for which the DID cannot be configured are considered "static"?
No, I don't think this has anything to do with the DID. But I'm not really an expert here, better listen to Ron (see other mail). > > For Super I/O stuff, the (PnP) settings are hardcoded from the options > > in the 'chip superio/foo/bar' section of Config.lb > > If I understand this then it is correct to have the Super I/O as a > subsection under the southbridge? Yes. > Do the sections in Config.lb point to code that is executed Sort of, yes. E.g. the keywords "io" and "irq" etc. in the Super I/O section are "translated" to function calls in src/device/pnp_device.c and others. PCI entries are translated into function calls in src/device/*pci*.c. > > > device pci_domain 0 on > > > chip northbridge/amd/amdk8 > > > device pci 18.0 on # northbridge > > > # devices on link 0 > > > chip southbridge/broadcom/bcm21000 > > The document shows names being appended to these (e.g. > northbridge/amd/amdk8 "mc0"). What effect does that have? None. It's just a comment for humans to better understand the file. > > > device pci 6.2 on > > > > What device is 6.2? The Super I/O section below should be a child of > > the ISA/LPC device usually. > > > > 6.2 is the LPC device on the southbridge. OK, good, that's correct then. > > Do you have the sch4304 datasheet? If so, it would be nice if you > > could add support for this chip to superiotool, see > > http://linuxbios.org/Superiotool > > > Yes I do. I might have an opportunity to do as you ask when the > development schedule will allow more time. Great, thanks. > > Where does this come from? I don't see 6.3, 6.4 etc. in the lspci output. > > > This is part of my confusion. I installed a Phoenix BIOS to boot Linux > and be able to run lspci. I have no visibility into what it's (Phoenix > BIOS) design is for this board. I suspect there are several devices it > hides (a feature of the chipset) because the assumption is they won't be > needed for the reference board. Hm, not sure. I usually use lspci from the vendor BIOS (Phoenix in your case) for comparison purposes. Yes, some devices may not appear (some depend on the BIOS config menu settings; e.g. the menu may allow to enable/disable an AC97 modem or not, etc), but the majority of devices (and their IDs) should be correct. > > Can you also post the 'lspci' output? Your version of lspci doesn't > > attach the device names to the -tvnn output. > > > One thing that keeps tripping me is it appears that some device numbers > are 0 based and others are 1 based. For example 18.0 agrees with a PCI > bus scan as well as 19.0 but 6.0 in the Config shows up as 7.0 in the > scan and 0.0 as 1.0. What's up with that? Hm, good question. Someone else will have to answer it. > Here's the output you requested. I've included the output from > print_pci_devices() (debug.c). Please also post the lspci from the vendor BIOS for comparison. Thanks, Uwe. -- http://www.hermann-uwe.de | http://www.holsham-traders.de http://www.crazy-hacks.org | http://www.unmaintained-free-software.org -- linuxbios mailing list linuxbios@linuxbios.org http://www.linuxbios.org/mailman/listinfo/linuxbios
