[PATCH 1/5] powerpc: DTS file for the C2K

Grant Likely grant.likely at secretlab.ca
Sat May 17 03:48:04 EST 2008

On Fri, May 16, 2008 at 11:20 AM, Remi Machet <rmachet at slac.stanford.edu> wrote:
> On Fri, 2008-05-16 at 11:53 +1000, David Gibson wrote:
>> This is a suspicious looking use of cell-index, though again this
>> could be a problem in the binding rather than your tree per se.
>> cell-index should *only* be present if it's used to index into some
>> shared resource register.
> This is actually my mistake: I use this property in
> arch/powerpc/boot/c2k.c to differentiate the 2 PCI buses. What property
> should I use instead ? I could detect the PCI bus # based on the reg
> property (memory base can change but not the registers address), what do
> you think ?

Use either the base address (a little ugly) or create a couple of
properties under the aliases node with the path to the two PCI busses
(cleaner, but a slight bit more work).


aliases {
       pci-bus1 = &pci1;
       pci-bus2 = &pci2;


> Remi
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Grant Likely, B.Sc., P.Eng.
Secret Lab Technologies Ltd.

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