On Fri, Jan 25, 2013 at 07:15:48PM +0000, Kukjin Kim wrote:
> Tomasz Figa wrote:
>
> [...]
>
> > > Well, the number of CPU types does not grow rapidly. It will be much
> > > less than one per SoC -- so keeping the list up to date shouldn't be
> > > that much effort.
> > >
> > > For ARM1176JZF-S, it could make sense for the comatible list to be
> > >
> > > "arm,arm1176jzf-s", "arm,arm1176"
> > >
> > > ...since the differences between 1176 variants are software probeable
> > > (i.e., whether there is an FPU or not). AFAIK the J, Z apply to all
> > > ARM1176, and the -S (synthesisable RTL) is nothing to do with software.
> > > The kernel probably only really needs to know "arm,arm1176".
> >
> > OK. So the conclusion is that I should change the cpus node to following:
> >
> > cpus {
> > cpu {
>
> cpu@0 { ?
As the CPU has no MPIDR, and thus doesn't have a reg property, there's no reason
to have a unit address. Just "cpu" should be fine.
>
> > compatible = "arm,arm1176jzf-s", "arm,arm1176";
> > };
> > };
> >
> > Am I right?
> >
> I think so :-)
>
> - Kukjin
>
As Dave pointed out, the "jzf-s" portion might be superfluous. It's worth
having the "arm,arm1176", though.
Thanks,
Mark.
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