Question about the PCI bus.

bwoodard@cisco.com
Tue, 03 Feb 1998 00:45:24 +0000


A friend of mine got a Toshiba 520 CDT laptop and we loaded rh5.0
linux on it but the PCI chipset doesn't appear to be supported by
Linux 2.1.84 yet. I have no problems with the pci chipset in my
Toshiba 510 CDT. I was wondering where I could find some information
about PCI as a reference. I don't know what is supposed to happen when
the PCI bus driver probes the hardware. The error that is reported in
the startup messages is:

PCI: 00:10 [1179/060a/060700] has unknown header type 82, ignoring.
PCI: 00:11 [1179/060a/060700] has unknown header type 82, ignoring.

pci.c 92: pcibios_read_config_dwordbi(bus->number, devfn, PCI_VENDOR_ID, &l);

is the line that seems to generate the error. I traced it into
arch/i386/kernel/bios32.c but I didn't know what access_pci is set to
in this system. So without having to buy and read all the pci manuals
can anyone give me some pointers on what I can do to troubleshoot this
problem.

The thing is that the hard disk and the cdrom and the video seem to be
working fine. However, it seems as though this error might be be
affecting the pcmcia services because they don't start up properly. (I
haven't begun troubleshooting this yet) but something called ide1 is
sitting on irq 15 on his 520 where the i82365 pcmcia controller lives
on my 510.

-ben