[PATCH][V4] powerpc/fsl-pci: Add pci inbound/outbound PM support

[Kumar Gala]

>>> Hi Kumar,
>>> I have already sent the log.
>>> Do you have any comment on it?
>>> 
>>> Thanks.
>>> - Hongtao.
>>> 
>> 
>> Hongtao,
>> 
>> You mentioned:
>> 
>>> I tested the re-parsing way by using setup_pci_atmu() when resume.
>>> And I found out that re-parsing will *change* outbound IO
>>> translation address regitster.
>> 
>> What do the values look like in both ATMU registers and io_resource if you reparse?
> 
> I think Hongtao mentioned in previous email as follows, the ATMU
> registers are inline with the io_resource address.

I was under that the impression that was the normal boot case, not the values from after wakeup.

- k

>>> Since potar is set by out_be32(&pci->pow[j].potar, (hose-
>>> io_resource.start >> 12);
>>> I provide the result of hose->io_resource.start >> 12 as follows:
>>> 
>>> pcie at ffe09000:
>>> before pci scan: io_resource.start >> 12: 0
>>> after pci scan : io_resource.start >> 12: ff7ed
>>> 
>>> pcie at ffe0a000:
>>> before pci scan: io_resource.start >> 12: 0
>>> after pci scan : io_resource.start >> 12: ff7db
>>> 
>>> pcie at ffe0b000:
>>> before pci scan: io_resource.start >> 12: 0
>>> after pci scan : io_resource.start >> 12: ff7c9
>>> 
>>> Note that I tested on P1022DS.