This document contains different information about the port of U-Boot for the OXC board designed by Lucent Technologies, Inc. 1. Showing activity U-Boot for the OXC board can show its current status using the Active LED. This feature is configured by the following options: CONFIG_SHOW_ACTIVITY When this option is on, the Active LED is blinking fast when U-Boot runs in the idle loop (i.e. waits for user commands from serial console) and blinking slow when it downloads an image over network. When U-Boot loads an image over serial line the Active LED does not blink and its state is random (i.e. either constant on or constant off). CONFIG_SHOW_BOOT_PROGRESS When this option is on, U-Boot switches the Active LED off before booting an image and switches it on if booting failed due to some reasons.