[U-Boot] SPL Dfu update

[Wolfgang Denk <wd@denx.de>]

Dear Michael Trimarchi,

In message <CAOf5uw=1yvf8xde--7bP2y0joPhj9WcEhE8jS8Y05+WYZ_wGBQ@mail.gmail.com> you wrote:
> 
> > Apart of the fact that is possible to add DFU to SPL, I am missing which
> > is the real advantage. One goal of having split U-Boot into two images
> > (SPL and U-Boot) is also to get a simpler and smaller image, letting the
> > main U-Boot image doing the rest (hush shell, further drivers, and so
> > on). We are now trying to push features that we currently have into SPL.
> > Well, why cannot we simply run U-Boot if we need a DFU update ? Which
> > are the real advantages for having DFU in SPL ?
> 
> USB flashing (no serial, no display) only otg

This does not answer Stefano's question: why do it in SPL, what's
wrong with loading the real U-Boot for this purpose?

Best regards,

Wolfgang Denk

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