[PATCH 4/6] ARM: mxc: don't allow to compile together i.MX51 and i.MX53

Uwe Kleine-König u.kleine-koenig at pengutronix.de
Mon Apr 11 03:40:41 EDT 2011


On Sun, Apr 10, 2011 at 10:02:03PM -0400, Nicolas Pitre wrote:
> On Sun, 10 Apr 2011, Uwe Kleine-König wrote:
> 
> > The two SoCs have different PHYS_OFFSETs so it's not (yet) possible to
> > compile a single (working) kernel for these.
> 
> Really?
> 
> Have a look at CONFIG_ARM_PATCH_PHYS_VIRT.  It's in mainline and fully 
> functional.
I'm aware of this config item. But still if it's off there must be a
distinction that's provided by this patch. Currently you can build a
kernel for i.MX51 + i.MX53 but IIRC it works on no machine.
When considering ARM_PATCH_PHYS_VIRT there are more SoCs that could be
built into a single image and so needs a more complicated logic.
And I don't want to depend on ARM_PATCH_PHYS_VIRT (yet), e.g. because
it's new and still depends on EXPERIMENTAL.

Best regards
Uwe


-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |



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