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SubjectRe: Linux UIO driver cache problem in PowerPC (fix)
Date
On Thursday 13 March 2008 22:53, Grant Likely wrote:
> On Thu, Mar 13, 2008 at 1:19 AM, Hans-Jürgen Koch <hjk@linutronix.de> wrote:
> > Am Wed, 12 Mar 2008 15:22:59 -0400
> >
> > schrieb "Jean-Samuel Chenard" <jsamch@gmail.com>:
> > > Hi,
> >
> > Hi Jean-Samuel,
> > thanks for your report. Please CC LKML if you find bugs like this. I
> > also added Grant Likely (PPC Xilinx Virtex maintainer), as it seems to
> > be a platform specific problem.
>
> Hmmm. I'm not a memory handling expert so I don't know what's going
> on here. Josh, does this look like anything that would be ppc405
> related?

The UIO also doesn't work on a MPC5200 CPU. With the additional
pgprot_noncached() call now it works as expected.

Juergen
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