u-boot工程的总体结构、主要的数据结构、内存分配，主要分析流程中各函数的功能，基于FS2410板子的u-boot移植，实现了NOR Flash和NAND Flash启动,网络功能。　

-u-boot project s overall structure, main data structures, memory allocation, the main function of the function of each process, based on u-boot board FS2410 transplantation, to achieve the NOR Flash and NAND Flash start, the network function.