On Mon, 24 Dec 2018 01:04:04 +0300
Nikolai Zhubr <[email protected]> wrote:

> Hi all,
> 
> I'm observing that the said A20-onlinuxino-micro board hangs in U-boot 
> in probing USB2 (see example below) in case it is powered by connecting 

I think it's normal. During the boot, u-boot initialize the usb otg, and for a 
fraction of second the power is disconnected. I solved it by attaching a 
battery (and I have a PSU as a side effect :) ).

Regards,
  Diego.

-- 
Diego Roversi <[email protected]>

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