[U-Boot] Booting Wandboard through USB

[Fabio Estevam]

On Sat, May 30, 2015 at 2:41 PM, Eric Nelson
<eric.nelson at boundarydevices.com> wrote:
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> Hi Tom,
>
> On 05/30/2015 09:49 AM, Tom Rini wrote:
>> On Fri, May 29, 2015 at 11:46:40AM +0200, Vincent Stehlé wrote:
>>
>>> Hi,
>>>
>>> Is it still possible to boot u-boot on Wandboard through USB,
>>> please?
>>
>> Not directly.  I've been toying with a few ideas but not put any
>> into practice yet.  The first and possibly simplist would be to
>> mimic the USB RNDIS in SPL support am335x uses (see
>> am335x_evm_usbspl_defconfig) but I don't know if we have space for
>> that.  The second would be trying to "fake" things such that for
>> imx_usb_loader you can pass both SPL and u-boot.img, and SPL is
>> run, inits memory and just exists and then u-boot.img is loaded and
>> run, similar to how with the non-SPL case you can use the loader to
>> pass in u-boot.imx as well as a kernel, ramdisk, etc, into DDR.
>>
>> Proof of concepts, patches or just plain old feedback greatly
>> appreciated!
>>
>
> This is an old topic and the threading seems to be messed
> up in the archive, but I think Michael Trimarchi has a
> solution based on inclusion of DFU in the SPL image:
>
>         http://lists.denx.de/pipermail/u-boot/2013-October/165849.html
>
> I would prefer to see something slimmer if possible, and using
> imx_usb has the advantage of only needing a single tool on the
> programming host.

I know this thread is a bit old, but I am also interested in loading
SPL + u-boot.img via imx_usb tool.

Has anyone managed to get this working in the mean time?

Thanks,

Fabio Estevam