? 2018?7?6? GMT+08:00 ??11:35:38, Andre Przywara [off-list ref] ??:

Hi,

On 06/07/18 16:04, Martin Lucina wrote:

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On Friday, 06.07.2018 at?09:52, Andre Przywara wrote:

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The Olinuxino has two USB socket:
USB0 is connected to a micro B socket. As it has the ID pin wired,

we

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describe it as a proper OTG socket, which switches between host and
device automatically.
USB1 is connected to a normal USB A socket. PG9 enables the power

line,

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so add the required regulator as well.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
---

This is not sufficient. Booting with this change results in the

following

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in dmesg:

musb-sunxi 1c19000.usb: Invalid or missing 'dr_mode' property
musb-sunxi: probe of 1c19000.usb failed with error -22
[...]
usb0-vbus: disabling

... and neither of the USB ports work.

Adding

    dr_mode = "host";

Argh, right, I remember you mentioned this before.
Still it should not affect the other USB port, and actually it is a
proper OTG port, so host is not right here. So this points to some
other
oddity or incorrect description. I need to go back to the schematics
and
our previous thread.

OTG needs dr_mode = "otg"; and a ID pin.

Cheers,
Andre.

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to the &usb_otg node fixes this -- the above messages go away and

both

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ports work as expected.

-mato