[U-Boot] [PATCH V4 01/17] usb: gadget: mv_udc: don't check CONFIG_USB_MAX_CONTROLLER_COUNT

Troy Kisky
2013-09-20T18:18:39Z

On 9/20/2013 3:45 AM, Marek Vasut wrote:
> Dear Troy Kisky,
>
>> i.mx6 has 1 otg controller, and 3 host ports. So,
>> CONFIG_USB_MAX_CONTROLLER_COUNT can be greater than 1
>> even though only 1 device mode controller is supported.
>>
>> Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
>>
> The problem is, will the 3 additional ports still work? I suspect they will, but
> then if you run 'usb reset', the gadget port will also be switched back into USB
> Host function, no
>
> Best regards,
> Marek Vasut
>
The next patch checks the OTG id before switching to host mode. If it is
grounded, then it enters
host mode, otherwise it doesn't. But, running 'usb reset' on a
netconsole may kill your connection.
I haven't tested that. Do you have a suggestion to fix that? I've been
testing with tftp transfers only.

Thanks
Troy