[U-Boot] [PATCH V2] MPC8xxx: Define cache ops for USB

[Marek Vasut <marex@denx.de>]

Dear Joakim Tjernlund,

> > Hello Marek,
> > 
> > On 5/25/2012 7:44 PM, Marek Vasut wrote:
> > > This patch conditionally defines flush_dcache_range() and
> > > invalidate_dcache_range() on MPC8xxx, to avoid EHCI complaining,
> > 
> > > resulting in the following output:
> > <snip>
> > 
> > > +
> > > +void invalidate_dcache_range(unsigned long start, unsigned long stop)
> > > +{
> > > +}
> > > +
> > > +void flush_dcache_range(unsigned long start, unsigned long stop)
> > > +{
> > > +}
> > 
> > Don't mind if this is a stupid question.
> > Can't this be placed in some common header?
> > Just to avoid code duplication!
> 
> And why are they just dummy functions? There are cache flush instructions
> for ppc

Doesn't the PPC have it's own internal snooping?

Best regards,
Marek Vasut