[PATCH] ARM: EXYNOS: Add ARCH_EXYNOS and reorganize arch/arm/mach-exynos

[arnd@arndb.de (Arnd Bergmann)]

On Monday 03 October 2011 21:40:36 Kukjin Kim wrote:
> Yes, absolutely. As I said, the 'mach-exynos' can support upcoming 
> Samsung EXYNOS SoCs and the way is better than making mach-exynos5.
> 
> My bigger plan is finally to make current directories to 3 mach- dir. 
> (mach-s3c, mach-s5p, and mach-exynos) and 1 plat-samsung directory. Of 
> course, the mach- directories can be reduced later.
>
> Firstly, as you can see, I'm merging plat-s3c24xx and plat-s5p into one 
> plat-samsung directory and actually the <plat/*.h> files and dev-*.c 
> files have been moved into plat-samsung. Maybe I can finish it during 
> 3.2-rc.

Ok, sounds good. So for my understanding: is s5p a completely separate
line from exynos, or are they more of an evolutionary succession where
you draw the line between the last uniprocessor and the first SMP
chip?
 
> Secondary, upcoming Samsung EXYNOS SoCs will be supported in mach-exynos 
> directory and this patch is required to that. For example, the EXYNOS5 
> SoCs (Cortex A15) will be supported in that with other EXYNOS4 SoCs soon 
> and of course it reduces code duplication 

My feeling is that it would be nicer to just add exynos5 to the mach-exynos4
directory for now, in the same way that omap3/4/5 are in the mach-omap2
directory. We can do a big rename later once the reorganization of code
within those directories that you explained above is complete.

If you still want to do the big rename right now, I would suggest doing
it at the end of the 3.2 merge window, so that all other patches that
might need to touch the mach-exynos4 directory can go in first.

	Arnd