[GIT PULL] io.h clean-up for PCI

[Russell King - ARM Linux]

On Mon, Jul 30, 2012 at 06:05:04AM -0500, Rob Herring wrote:
> On 07/28/2012 09:38 AM, Will Deacon wrote:
> > Hi Rob,
> > 
> > On Fri, Jul 27, 2012 at 10:59:18PM +0100, Rob Herring wrote:
> >> Please pull updated io.h cleanup for PCI branch. I rebased this as the
> >> changes shifted things around a bit. This has the following changes:
> >>
> >> - Incorporated fixes from you and Stephen
> >> - Add early i/o mapping pci_map_io_early and enable on footbridge and
> >> integrator for VGA console
> > 
> > Unfortunately, I still experience the same hang on integrator with this
> > revised patch series. Given the turnaround time for testing this, I don't
> > think this should block the series, but I would like to get to the bottom of
> > it if possible.
> > 
> > I tried annotating the PCI code (including fault handlers) and the VGA
> > console code but I couldn't find the culprit. I suppose the next step is
> > JTAG, but that requires steal^Wborrowing some hardware from work.
> 
> I did do some tests with qemu by adding i/o setup to integrator/cp.
> Without it, I would abort on 0xfee003xx (vga regs). Once I added the
> setup, I got to an abort on a PCI memory address which I did not setup.
> 
> We can always revert integrator change if we can figure this out...

Err, Integrator/CP doesn't have PCI nor does it have VGA.  Only the
Integrator/AP has that.