Re: [PATCH 1/1] [MTD/NAND]: Add Blackfin BF52x on-chip NAND Flash controller driver support in bf5xx_nand driver

[David Woodhouse <dwmw2@infradead.org>]

On Fri, 2007-11-23 at 17:04 -0500, Robin Getz wrote:
> It could be a runtime if() but we don't currently have the is_mach() all set 
> up properly today.
> 
> This is because on most systems that Blackfin ships on - memory is the 
> dominate cost of the system, and end users don't want to take the either the 
> storage (flash) hit of having code they don't use, or the run time (DRAM) 
> overhead. They are fine with compiling 2 kernels for two platforms if it 
> means things are cheaper. :)
> 
> That being said, we still need to go back, and add things properly - and just 
> let gcc optimise things away if it is not used - c code is more maintainable 
> than all the ifdefs we have today.
> 
> This is the goal - it will just take a little bit to get there.

For now I suspect you could at least define machine_is_bf52x() and
machine_is_bf54x() which are hard-coded to either zero or one according
to the configuration, and at least you wouldn't need to add ifdefs to
drivers.

-- 
dwmw2

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