PCI base_address

[Thomas Riemer]

There is a field in pci_dev called base_address
(include/linux/pci.c)

The USB stuff seems to be referencing base_address[4] in the UHCI version
 (Intel)
and 
  base_address[0] in the OHCI version...   (non -intel)

I'm a bit confused as to why pci.c would have base_address[6] as a 
member to start with - and just as confused as to why there would
be a difference between architectures.  

Anyone have any comments that might help clarify this confusion?

-Tom




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