I'm writing a small OS for a ARM board, and I'm a bit tired of the usual "remove SD card, copy kernel, insert SD card, switch on" pattern, so I started to look towards u-boot, and now I'm able to load the kernel via serial port using u-boot and kermit: I don't have to remove/insert the SD card anymore.
However this is painfully slow (~5min for 2.5 Mo), and I wonder if I could do the same using the usb port of the board (I know u-boot support tftpt booting method, but I didn't managed to setup the network correctly so far).
Best,
V.