基于MIPS的Au1500NC板上的启动程序U-Boot设计

Design of U-Boot on Au1500 NC Board Based on MIPS

U-Boot是一种功能强大的、开源的、嵌入式系统启动软件(Bootloader),移植U-Boot相比自己重新开发一套启动程序可以节省大量的精力且后期的维护也更为方便。文中介绍了U-Boot在Au1500 NC板上的移植方法,涉及对U-Boot的架构及与MIPS体系结构相关代码的分析,Flash驱动程序的添加和以太网驱动程序的修改。通过移植,最后成功实现了对Linux操作系统的引导,从而为后期的进一步开发带来了极大的方便。

U- Boot is a powerful, open source bootloader used in embedded system. Compared with developing a new bootloader, porting U - Boot is more efficient and more convenient for maintenance. Introduces the porting of U - Boot on Au1500 NC board, including the analysis of the code relative to the MIPS architecture, the add and modifying of drivers. The porting boots the Linux system successfully. This is convenient for the further development.