[PATCH 1/3] Add a dedicated function to query debug action to board_api

[Werner Almesberger]

Paul Fertser wrote:
> I agree in general. But do you really think that the possibility to
> skip a kernel by pressing a button connected to GPIO should be removed
> from Qi?

No, that's great and even required. I was thinking of the loglevel
change, which is something you probably don't switch very often.

> transparent imho. And as a user i never had a confusion how to
> start/operate u-boot.

Heh, I wish all our users were like you :-) I noticed how awkward
it really is when explaining it to others. Many people just happen
to do the right thing if you tell them "power then AUX" but some
get it wrong and "debugging" where their timing differs from yours
can be quite interesting.

> I hope that all the danger is gone after Andy moved steppingstone code
> to 0x40000000, isn't it? ;)

There's still a little window where changing or bouncing AUX can
cause trouble before you get there. I don't recall the exact
duration, but it might be tens of milliseconds.

> I hope some guys who want that fancy bootmenu will come soon with a
> decent solution, if they don't that means they don't really need it ;)

Yeah, I'm hoping we can "outsource" this to the community but
perhaps a proof of concept is needed to get things going.

> Not always, especially when one doesn't have a debug board :)

Oh dear ... you seem to like the tough challenges :)

- Werner