[PATCHv5] Enable a way to provide the reason for "being here"

[Sascha Hauer]

On Wed, Jul 18, 2012 at 10:46:46AM +0200, Juergen Beisert wrote:
> Many architectures support a way to detect why the bootloader is running.
> This patch adds a global variable to be able to use the cause in some kind of
> shell code to do special things on demand. For example to do an emergency boot,
> when the last boot fails and the watchdog reactivates the hanging system.
> 
> V2 includes Marc's suggesion.
> V3 includes the detection for the i.MX28 SoC and fixes its usage for other
> i.MX SoCs.
> V4 includes Marc's recent suggestion.
> V5 includes Sascha's comments.
> 
> Comments are still welcome.
> 

Applied, thanks

Sascha

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