I've got several designs with multiple AVR, as well as USB "intelligent" devices.
So one of the issues, is have a "serial" port is not a "option" in some of the designs.
I see the ideal would be to add a "console" driver to uboot that simulates a serial port.
And possible a driver also for the "kernel". (a gadget driver gives me a psedo network device, so I guess I could just telnet, but that does leave me hanging for kernel debug.
Any ideas or suggestions?