[PATCH] MXS/i.MX23: add boot source detection

[Sascha Hauer]

On Tue, May 21, 2013 at 10:44:12AM +0200, Juergen Beisert wrote:
> The boot source for the i.MX23 is configured via a few GPIOs, which are later
> be used for different purposes (like LCD data for example). The SoC internal
> ROM reads these GPIOs and uses the selected boot source.
> 
> For various reasons the boot source is also of interest when Barebox is running.
> This detection approach reads again the GPIOs. It switches temporarily the pins
> to act as GPIOs and input, reads their settings, and switches back to their
> previous functions.
> 
> Signed-off-by: Juergen Beisert <jbe at pengutronix.de>

Applied, thanks

Sascha


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