[PATCH V2 4/6] powerpc/44x: don't use tlbivax on AMP systems

[Dave Kleikamp]

On Thu, 2011-02-03 at 10:08 +1100, David Gibson wrote:
> On Tue, Feb 01, 2011 at 12:48:44PM -0600, Dave Kleikamp wrote:
> > Since other OS's may be running on the other cores don't use tlbivax
> 
> [snip]
> > +#ifdef CONFIG_44x
> > +void __init early_init_mmu_44x(void)
> > +{
> > +	unsigned long root = of_get_flat_dt_root();
> > +	if (of_flat_dt_is_compatible(root, "ibm,47x-AMP"))
> > +		amp = 1;
> > +}
> > +#endif /* CONFIG_44x */
> 
> A test against a hardcoded compatible string seems a nasty way to do
> this.  Maybe we should define a new boolean property for the root
> node.

I'm not crazy about this string, but I needed something in the device
tree to key off of.  Freescale has something similar (i.e.
MPC8572DS-CAMP), so I chose to follow their example.  I'd be happy to
replace it with a boolean property.  Any objection to just using "amp"?

Thanks,
Shaggy
-- 
Dave Kleikamp
IBM Linux Technology Center