bug：
移植uboot-2012.04.01添加mtdparts命令后加载uImage_3.5并启动，产生错误信息：
// Verifying Checksum … Bad Data CRC
ERROR: can’t get kernel image! //
但加载uImage_4.3却能正常启动
猜测：
uboot源码添加mtdparts命令后参数为：

#define MTDIDS_DEFAULT          "nand0=s3c2440_nand"
#define MTDPARTS_DEFAULT        "mtdparts=s3c2440_nand:256k(u-boot),"        \
                                        "128k(env),"            \
                                        "2m(kernel),"          \
                                        "-(rootfs)"

输入mtdparts命令显示为：

device nand0 <s3c2440_nand>, # parts = 4
 #: name                size            offset          mask_flags
 0: u-boot              0x00040000      0x00000000      0
 1: env                 0x00020000      0x00040000      0
 2: kernel              0x00200000      0x00060000      0
 3: rootfs              0x0fda0000      0x00260000      0

可能uImage_3.5与新uboot对分区的命名不同导致启动无法识别。
验证：修改mtdparts参数

#define MTDIDS_DEFAULT          "nand0=s3c2440_nand"
#define MTDPARTS_DEFAULT        "mtdparts=s3c2440_nand:256k(u-boot),"        \
                                        "128k(params),"            \
                                        "2m(kernel),"          \
                                        "-(rootfs)"

重新上传编译烧写，依然相同错误，验证失败
此问题待探讨…