关于uboot的启动代码的分析，很全面，很经典，了解启动过程，读懂源码，对以后内核开发很有帮助，尤其是对如何引导内核有更明白的概念。-Uboot startup code analysis, it is comprehensive, very classic, understand the boot process, read the source code, right after the kernel development is helpful, especially on how to boot the kernel have a better understanding of the concept.