On Thu, 8 Apr 2010, Dmitry Kasatkin wrote:

> Hi,
> 
> BTW..
> 
> How will it work if those resource structures anyway conditionally compiled
> for OMAP2 or 3 or 4?
> only one structure will be compiled at once.

Hi Dmitry,

it is possible to build a kernel that will run on both OMAP2 and OMAP3 
(for example).  We call these kernels 'multi-OMAP' kernels.  In such a 
case, there will be multiple CONFIG_ARCH_OMAP* symbols defined, so 
multiple structure records will be included in the kernel image.  Also 
when this happens, the 'cpu_is_omap*' macros will be defined to something 
that is evaluated at kernel run-time, rather than compile-time (as would 
be the case with single-OMAP kernels). So then the appropriate structure 
can be passed at run-time to some device registration code.


- Paul
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