Matthew Locke wrote:

Rather than replace the whole idle loop, I would allow for
sub-arch/processor specific code in the idle loop.  Perhaps move the
power_save routine into the platform code?

This sounds like a good idea if we could use
  if( ppc_md.powersave != NULL)
       ppc_md.powersave();

If it is determined that calling power_save() which is resides in an
arch/processor specific file then we are talking about many files being
hit.  and the current power_save seems to common for many other ppc
platforms other than 4xx & 8xx

armin


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