Re: pci in arch/powerpc vs arch/ppc

Hi all,

I've noticed the following: In function pci_process_bridge_OF_ranges, wh=
en  =

parsing the ranges for MEM and I/O space, the res->start for mem is  =

correctly set to ranges[na+2], which is the cpu address in the ranges  =

property. However, in I/O related code, res->start is set to ranges[2], =
 =

which is in the PCI address field of the ranges property (and in my case=
  =

is 0, as is also for the mpc8272ads case as well). Thus, the res->start =
of  =

the I/O of the bridge is 0, which leads to the first device with I/O spa=
ce  =

(a davicom ethernet device) been also assigned a I/O region starting at =
0.  =

Finally, the dmfe (davicom ethernet driver over PCI) fails with "dmfe: I=
/O  =

base is zero". So, is the implementation of pci_process_bridge_OF_ranges=
  =

correct ? shouldn't res->start =3D ranges[na+2] for I/O as well?

thank you

Alex