USB OTG work as either device or host in am335x

nilesh kadivar

Other Parts Discussed in Thread: AM3356

Hi,

I am using am3356 with ti-processor-sdk-linux-am335x-evm-01.00.00.00. Currently I am able to work am335x in usb device mode with inserting some .ko files. But not able to work as USB host. USB host only works if i add below code in dts file.

usb@47401000 {
                status = "okay";
                dr_mode = "host";
        };

What changes are required so that i can able to work USB as device and host using single image instead of two separate images.

Regards,

Nilesh

over 9 years ago

0 Yordan Kovachev over 9 years ago

TI__Guru**** 161600 points

Hi Nilesh,

The dr_mode can be one of the following: "host", "peripheral" or "otg".

Try using the usb with dr_mode = "otg";

For more information see Documentation/devicetree/bindings/am335x-usb.txt

Best Regards,
Yordan

0 -DK- over 9 years ago in reply to Yordan Kovachev

TI__Mastermind 27890 points

Please also keep in mind that there is a hardware component to the functionality as well: the USBn_ID pin.

Processors

Processors forum

USB OTG work as either device or host in am335x