PowerPC平台的U-Boot启动分析和移植

U-Boot Booting Analyses and Porting on PowerPC Platform

引导加载程序是系统加电后运行的第一段软件代码,负责硬件设备的初始化,为加载操作系统内核做准备。U-Boot是目前比较流行的开放源码的引导加载程序。本文针对基于MPC8349E处理器的高速数据传输硬件平台,分析了U-Boot启动流程,给出了PowerPC平台系统设计中U-Boot移植的过程和方法。

The bootloader is the first piece of program after the system is powered on, which is mainly intended to initialize hardware devices, preparing for loading OS kernel.U-Boot is a bootloader program of popular and open source code.According to the hard-ware platform for high-speed data transmission based on MPC8349E processor, the paper analyzed U-Boot＇s booting sequence, and then introduced porting process and ways on the system design of PowerPC platform.