[PATCH 24/32] pci: PCIe driver for Marvell Armada 370/XP systems

[Arnd Bergmann]

On Wednesday 13 February 2013, Jason Gunthorpe wrote:
> > You seem to propose a global regs = <...> property under
> > pcie-controller, but indexing using marvell,pcie-port cannot work. PCIe
> > interfaces are identified by two values (port,lane), so we have 0.0,
> > 0.1, 0.2, 0.3, 1.0, 1.1, 1.2, 1.3, 2.0 and 3.0 on MV78460. I really
> > would like to avoid having bizarre computations to find which entry in
> > this big regs = <...> array correspond to a given PCIe interface.
> 
> Well, using the 'global' regs is an easy way to avoid the complexity with
> address translation and 'assigned-addresses'. So some way to translate
> between link # and regs index is necessary. How about using the PCI
> device number? Device number 1 is regs entry 0, 2 is regs entry 1, etc.

Or you could use the "reg-names" property.

	Arnd