U-Boot在mini2440平台上的移植过程分析

引导加载程序是嵌入式系统开发的重要环节,它使得操作系统和硬件平台联系起来,对嵌入式系统的后继软件开发十分重要。为此,介绍了当前嵌入式开发中功能强大、稳定可靠的引导加载程序U-Boot的目录结构、启动流程及其移植的思路和引导内核的方法;给出了移植Uboot-2010-06到ARM微处理器S3C2440上所需操作环境的搭建,具体代码的修改,具体参数的设置,以及所需的操作命令等要点。最后将编译生成的U-Boot.bin文件下载到ARM微处理器S3C2440上,测试显示,U-Boot可以达到设计的功能要求并能够稳定运行,而且通过对其进行正确的配置可以引导内核。

Analysis of transplant process of U-boot to platform based on mini2440

Bootloader（boot loader） plays an important part in combining the operating system with hardware platform,and also is crucial for embedded system of software development.Directory structure,workflow,a porting thought and a booting kernel method of a powerful,stable U-Boot program in the development of the current embedded systems are proposed.The problems in transplanting uboot-2010-06 to S3C2440 are discussed,including particularly the environment establishment,the specific changes to the file,the specific settings to parameter and the demand of operation command.Finally the compiled U-Boot.bin will be downloaded to ARM microprocessor.The result shows that U-boot can reach the project request,operate steadily and boot the kernel successfully through the proper configuration.