[U-Boot] SPL Dfu update

[Michael Trimarchi]

Hi

On Wed, Oct 30, 2013 at 8:58 PM, Wolfgang Denk <wd at denx.de> wrote:
> Dear Michael Trimarchi,
>
> In message <CAOf5uw=1yvf8xde--7bP2y0joPhj9WcEhE8jS8Y05+WYZ_wGBQ at 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?
>

Because it's not possible, internal memory size of some cpus. You need
to have a way to load the second stage and I'm discussing a general
way to do.

> Best regards,
>
> Wolfgang Denk
>

What is your alternative way?

Michael


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