[U-Boot] usbtty using i.MX6

[Otavio Salvador]

Hello,

I'd like to know if someone has succeed in using usbtty with i.MX6. I
am interested in using it for one board but been not succed, it seems:

/home/otavio/hacking/u-boot/drivers/serial/usbtty.c:553: undefined
reference to `udc_init'
drivers/serial/built-in.o: In function `usbtty_init_instances':
/home/otavio/hacking/u-boot/drivers/serial/usbtty.c:686: undefined
reference to `udc_setup_ep'
/home/otavio/hacking/u-boot/drivers/serial/usbtty.c:708: undefined
reference to `urb_link_init'
/home/otavio/hacking/u-boot/drivers/serial/usbtty.c:709: undefined
reference to `urb_link_init'
/home/otavio/hacking/u-boot/drivers/serial/usbtty.c:710: undefined
reference to `urb_link_init
...

Does someone got it working?

-- 
Otavio Salvador                             O.S. Systems
http://www.ossystems.com.br        http://code.ossystems.com.br
Mobile: +55 (53) 9981-7854            Mobile: +1 (347) 903-9750