[PATCH v3 3/3] PCI: ARM: add support for generic PCI host controller
Arnd Bergmann
arnd at arndb.de
Tue Feb 18 13:47:15 EST 2014
On Tuesday 18 February 2014 18:44:20 Will Deacon wrote:
> On Tue, Feb 18, 2014 at 06:21:42PM +0000, Jason Gunthorpe wrote:
> > On Tue, Feb 18, 2014 at 12:20:43PM +0000, Will Deacon wrote:
> > > +
> > > + // BUS_ADDRESS(3) CPU_PHYSICAL(2) SIZE(2)
> > > + ranges = <0x1000000 0x0 0x00000000 0x0 0x00000000 0x0 0x00010000>,
> > ^^^^^^^^^^^^^^
> >
> > This probably shouldn't be 0 in the example, nor in your kvm tool
> > output. For example purposes any value will do.
>
> Hmm, so kvmtool actually provides a PC ioport at 0x0, which is handy since
> there's an 8250 down there. That means we have:
>
> 0x0 - 0x6200 : Weird PC stuff
> 0x6200 - 0x10000 : PCI IO space
>
> Should I just change everything to be offset by 0x6200?
Do you have a list of the stuff in there?
If that is actually port I/O, leaving it in there may be best,
but I agree the example should be changed.
Arnd
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