[U-Boot] [PATCH][RFC] Update U-Boot's build timestamp on every compile

[Peter Tyser <ptyser@xes-inc.com>]

Hi Andy,

> I don't think he's wanting this as much for releases (which would be
> fine with the git id as you mentioned), but during the development
> process.  It is very useful during development to have a timestamp
> which confirms that what you are running now is what you expect.
> There are various ways I have used this:
> 
> * Catch that I failed to copy the new image to my tftp directory
> * Confirm that I'm booting from the flash bank I just programmed
> * Helpful for figuring out which of the files in my tftp directory
> corresponds to what's running

100% agree - all our releases are generated from fully-committed git
trees with tags.  This patch only intends to improve development.

> Also, while I can see good arguments for not having a time stamp,
> having one that is not up-to-date seems totally useless.  The stamp
> might not be updated for months, and thus provides only an indicator
> as to when the date was last updated.
> 
> Upshot: I endorse this patch's concept, and urge Peter to put in his
> (apparently underpaid) time to complete it.  :)

I'll submit a patch shortly.  I'll also mention the underpaid comment to
management and see what comes of that;)

Peter