On Wednesday 26 February 2014 15:16:40 Arnd Bergmann wrote:
> On Wednesday 26 February 2014 15:06:32 Uwe Kleine-König wrote:
> > > It's more to the point. The first hunk hides the "Memory split" option
> > > which is irrelevent on !MMU. We already know that PAGE_OFFSET should
> > > be the same as PHYS_OFFSET for noMMU, so let's make that explicit.
> > > Note that it already is by way of the bit in the last hunk - which as
> > > a result of this change can now be removed... especially so as we have
> > > nothing defining PAGE_OFFSET in arch/arm/*/include...
> >
> > Looks reasonable. Maybe we can also get rid of PLAT_PHYS_OFFSET then.
>
> I think we still need PLAT_PHYS_OFFSET for the configurations that cannot
> use ARM_PATCH_PHYS_VIRT, which are:
>
> * Anything using XIP_KERNEL with MMU=y
> * mach-realview with the custom __phys_to_virt hack
> * ZBOOT_ROM
Ah, nevermind. We need either PLAT_PHYS_OFFSET /or/ CONFIG_PHYS_OFFSET
for these case, but we could in theory drop the former.
Arnd
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