[U-Boot] Booting Wandboard through USB

[Tom Rini]

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!

-- 
Tom
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