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From: michael at siptele.com <michael@siptele.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] usb-otg mode
Date: Tue, 29 Aug 2017 11:47:38 +0300	[thread overview]
Message-ID: <023801d320a3$79c10f90$6d432eb0$@com> (raw)


Hello u-booters!

I have bought a TV box (with Android). I want to install Linux on this box.
Inserting sd card with Linux image did nothing.

As I did not want to break the box, I spend several days compiling u-boot
with usbtty to get some insight to the TV box.
Starting the TV box with my compiled spl.bin "sunxi-fel uboot
u-boot-sunxi-with-spl.bin" did not show me any usbtty on my host device and
I couldn't see a thing.

Then, I discovered that I can open the TV box without breaking it. I welded
USB UART to the console pins and bingo! I get console messages and can
intercut with the u-boot console.

Apparently, booting the box with "sunxi-fel uboot u-boot-sunxi-with-spl.bin"
Starts the box in normal usb mode. (not otg). So, the usb detach from the
host machine
And the console over usbtty does not reach it.

Can we program the u-boot to start the USB in usb-otg mode?

Thank you,

Michael

                 reply	other threads:[~2017-08-29  8:47 UTC|newest]

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