[U-Boot] [PATCH 12/20] arm/km: add support for external switchconfiguration
Holger Brunck
holger.brunck at keymile.com
Mon Jul 9 16:44:31 CEST 2012
Hi Detlev,
On 07/09/2012 03:06 PM, Detlev Zundel wrote:
>> 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?
>
shouldn't be there an exception for strictly board specific peripheral drivers
like an custom-made FPGA?
Regards
Holger
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