u-boot-1.1.6.tar.bz2 是uboot1.1.6最原始的代码 u-boot-1.1.6_OpenJTAG_nand_large_page.tar.bz2 是修改后的uboot，支持大页nand，usb烧写程序-u-boot-1.1.6.tar.bz2 is uboot1.1.6 most original code u-boot-1.1.6_OpenJTAG_nand_large_page.tar.bz2 is modified uboot, support for larg