[U-Boot] Starting u-boot in USB otg mode

[Maxime Ripard]

Hi,

On Thu, Sep 07, 2017 at 12:05:20PM +0300, rivael_il wrote:
> Hello Kever Yang,
> 
> Thank you for your prompt response.
> 
> This is an important feature, as 'otg' mode allow the board to stay
> responsive to the computer driving it. Especially sunxi-fel and
> ttyusb.

Both are peripheral-only features, not OTG. OTG is about switching
from peripheral to host based on the ID-pin, and this what is not
supported in U-Boot.

However, peripheral is, and it's already supported for the Allwinner
SoCs. We use it for things like fastboot. I'm not sure what this has
to do with fel though.

Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
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