调试通过的可以直接在NAND Flash 上启动的u-boot-1.1.6 (开发板：优龙st2410) 包括：cs8900网卡驱动，NAND Flash 烧写，NAND 环境变量保存（saveenv）, bootm, go, 网络下载tftpboot-debugging can be passed directly on the NAND Flash to initiate the u-boot-1.1.6 ( Plate : You Lung st2410) : cs8900 card driven, NAND Flash burning, NAND preserve the environment variables (saveenv), bootm, go, Download tftpboot network