I am working on 405GP AMCC. I want to build u-boot for the 405GP. But in the Makefile I see lot of supports for the 405GP (i.e APC405_config,AR405_config,bamboo_config,bubinga_config) like this. which one i can take and build for my board. And also I don't see which UART they are using also? Can any one help me out.