Watchdog support

[Marc Reilly]

> >> does barebox have any watchdog support ?
> >
> > I think the answer to your question is really dependent on what
> > platform you are using, and exactly what you want the watchdog to do.
> 
> Platform does not really matter here, I mean does barebox trigger the
> watchdog if it is doing lengthy operations like writing flash to prevent
it from
> being reset in the middle of the operation. That has little to do with if
the
> platform has a watchdog or not.
> 
> So let me changes the question a bit;
> 
> Does barebox have a standard API to trigger and program a watchdog ?

I'm definitely not an authority on this, but I think not. From a quick scan
the strategy is to disable the wdt if it's going to be a problem. There
seems to be some API to trigger a reset via the wdt, but that's all.
Platform may be an issue because the platform may not implement those
functions.
(Note I didn't look very hard - I invite anyone to correct me).

Cheers
Marc