<p><br>
On Jul 21, 2012 5:56 PM, "Arnd Bergmann" <<a href="mailto:arnd@arndb.de">arnd@arndb.de</a>> wrote:<br>
><br>
> On Saturday 21 July 2012, Will Deacon wrote:<br>
> > Hi Rob,<br>
> ><br>
> > On Tue, Jul 17, 2012 at 07:02:12PM +0100, Rob Herring wrote:<br>
> > > On 07/17/2012 12:04 PM, Will Deacon wrote:<br>
> > > > On Sat, Jul 14, 2012 at 10:49:47PM +0100, Linus Walleij wrote:<br>
> > > >> I think the PCI bus on my Integrator/AP is tilted and not suitable<br>
> > > >> for tests. But IIRC Will Deacon actually has one of these machines<br>
> > > >> and managed to get ethernet going on it. Maybe he can even test<br>
> > > >> this patch?<br>
> > > ><br>
> > > > I can try digging out my integrator at the weekend if you like. Are these<br>
> > > > patches sitting in a branch anywhere that I can grab?<br>
> > > ><br>
> > ><br>
> > > git://<a href="http://sources.calxeda.com/kernel/linux.git">sources.calxeda.com/kernel/linux.git</a> io-cleanup-pci<br>
> ><br>
> > I dusted off the integrator, but I'm failing to boot at all if I build from<br>
> > that branch:<br>
> ><br>
> > Uncompressing Linux... done, booting the kernel.<br>
> > <silence><br>
> ><br>
> > Using the same .config, I can boot v3.5-rc7 just fine (I even rebased your<br>
> > branch onto that in case something had been fixed in mainline, but it made<br>
> > no difference).<br>
><br>
> I've looked at integrator_defconfig, and could not find any code that<br>
> actually uses the PIO accessors. Is your configuration different to that?<br>
> Do you actually have PCI enabled and present on the machine? Do things<br>
> change if you turn PCI off?<br>
></p>
<p>Could be overlapping static mappings. I manually checked that, but may have missed something.</p>
<p>Can you turn on earlyprintk?</p>
<p>Rob<br>
</p>