[U-Boot] [PATCH 12/20] arm/km: add support for external switchconfiguration

[Detlev Zundel]

Hi Wolfgang,

[...]

> If we place the driver in your board diretory, the chances are huge it
> will simply sit there and rot, and the next one who needs something
> similar will reinvent the wheel because he did not find your copy.
>
> I agree that even very simple and uncomplete implementations can co in
> if the fulfil some purpose, and can form a basis for future
> extensions. 

I just read through our documentation on the Wiki and found nothing
relavant to such a topic.  If we make this a requirement, we should add
it so people know about it beforehand.

How about amending the U-Boot design principles with 

11. Keep It Generic

- Generic code shall be added as high as possible to the U-Boot
  abstraction hierarchy and only as a last resort into board
  directories.  This entails that peripheral drivers should be put below
  "drivers" even if they start out supporting only one specific
  configuration.  Note that it is not a requirement for such a first
  instance to be generic as genericity generally cannot be extrapolated
  from a single data point.

How does that sound?

Cheers
  Detlev

-- 
The only thing worse than generalizing from one example is generalizing
from no examples at all.
                            -- principles of X Window System
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