[PATCH v2] ARM: errata: LoUIS bit field in CLIDR register is incorrect

[nicolas.pitre@linaro.org (Nicolas Pitre)]

On Thu, 6 Jun 2013, Nicolas Pitre wrote:

> On Thu, 6 Jun 2013, Jon Medhurst (Tixy) wrote:
> 
> > On Cortex-A9 before version r1p0, the LoUIS bit field of the CLIDR
> > register returns zero when it should return one. This leads to cache
> > maintenance operations which rely on this value to not function as
> > intended, causing data corruption.
> > 
> > The workaround for this errata is to detect affected CPUs and correct
> > the LoUIS value read.
> > 
> > Acked-by: Will Deacon <will.deacon@arm.com>
> > Signed-off-by: Jon Medhurst <tixy@linaro.org>
> 
> Acked-by: Nicolas Pitre <nico@linaro.org>
> 
> This wouldn't hurt adding 'CC: stable at kernel.org' as well.

"stable at vger.kernel.org" that is.


Nicolas