[U-Boot] [linux-sunxi] A20-olinuxino-micro hangs in U-boot if powered from MINI-USB only.

John S
2018-12-24T19:54:09Z

On Monday, 24 December 2018, 19:10:24 GMT, Nikolai Zhubr <n-a-zhubr@yandex.ru> wrote:
>>Hi,24.12.2018 20:32, Diego Roversi:
>>> 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 :) ).

> Ah, got it. Thats a funny issue then. Its not the software to blame. Ok.
> (Ideally, this peculiarity should probably have been mentioned by Olimex
> in their docs, but maybe I've overlooked it.)
> Solved it for now by disabling USB altogether.

Isn't it caused by the software as stated above, i.e. nothing to do with Olimex?

John