Separate issue. The BIOS in your PC isn't setting up the CardBus device 
and/or the bus behind the CardBus. PCIBIOS_ADDR_FIXUP, 
PCIBIOS_BUS_FIXUP, and PCIBIOS_INTR_FIXUP configure things that the BIOS 
might not have. ("man pcibios" for details.) In particular:

     PCIBIOS_BUS_FIXUP
         fixup PCI bus numbering; needed for many cardbus(4) bridges.

         Each PCI bus and CardBus should have a unique bus number.
         But some BIOS implementations don't assign a bus number for
         subordinate PCI buses. And many BIOS implementations don't
         assign a bus number for CardBuses.

If you have ACPI enabled, are you also enabling ACPI_PCI_FIXUP and 
ACPI_ACTIVATE_DEV?

[BTW: isn't the plural of bus "busses"?]
-- 
Michael South
msouth@msouth.org
(831) 338-8014