On Thursday 21 March 2013, Jason Gunthorpe wrote:
> On Thu, Mar 21, 2013 at 10:15:23PM +0100, Thomas Petazzoni wrote:
> > Dear Jason Gunthorpe,
> >
> > *) It only works when LPAE is enabled, so we would have to have
> > different internal register addresses depending on whether LPAE is
> > enabled or not. Probably not impossible, but not very
> > straightforward either.
>
> Ideally the internal register space address would come from the DT -
> we are getting very close to that on Marvell, I think.. Things like
> earlyprintk should ideally early parse the DT, harder I know :(
Let's not worry about earlyprintk for now. earlyprintk is supposed to be
really really simple, and the solution that we are using now works
well enough: You pick a hardcoded implementation at build time when
you are debugging, but disable debug_ll for a multiplatform release
kernel.
Arnd
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