[U-Boot] Merging device trees at runtime for module-based systems

Wolfgang Denk wd at denx.de
Thu Oct 25 22:46:32 CEST 2012


Dear Daniel,

In message <50893633.6070408 at gmail.com> you wrote:
> 
> Overwrites must be addressed in the first place. The most common example
> is that a more generic part (the module tree) registers all details
> about a peripheral up-front but then sets its status to 'disabled'. That
> way, the more specific part (the base board tree) can overwrite this
> property to 'okay' at wish to enable it and not care for the pre-defined
> details. This is also how we do things in our device-trees.

Agreed.

> > I definitely can see the benefit of such a feature and would be happy
> > if you could go forward and implement it.
> 
> Ok then. I guess this should be something that can eventually be merged
> back into libfdt?

I can't speak for the FDT custodian, but I think this makes a lot of
sense.

Best regards,

Wolfgang Denk

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