On Sunday 23 March 2014 16:04:41 Nicolas Pitre wrote:
> On Fri, 21 Mar 2014, Rob Herring wrote:
>
> > From: Rob Herring <r...@kernel.org>
> >
> > Add earlycon support for the arm64 semihosting debug serial interface.
> > This allows enabling a debug console when early_params are processed.
> > This is based on the arm64 earlyprintk smh support and is intended to
> > replace it.
> >
> > This is named arm rather than arm64 in hopes it will be used for both,
> > but only arm64 is supported ATM.
>
> It can't be used for both as the semihosting calls themselves need
> assembly code and this is not compatible with the equivalent ARM32
> calls. So I'd suggest naming this "arm64" to avoid potential confusion.
How about using an compile-time conditional to put both inline assemblies
in there? While the driver is rather trivial to start with, I don't see
a point in duplicating it either.
Arnd
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