用am335x的开发板，然后用SD卡把Android的文件系统烧写到emmc里，启动的时候出现这个log：
软件是sdk6.0，烧写liunx的文件系统是ok的，想用这个方法看能不能把Android的文件系统烧到emmc里面，烧写成功，启动出现问题，请帮忙看看
Hit any key to stop autoboot: 0
mmc_send_cmd : timeout: No status update
Card did not respond to voltage select!
mmc0(part 0) is current device
mmc_send_cmd : timeout: No status update
Card did not respond to voltage select!
Booting from nand ...
no devices available
Wrong Image Format for bootm command
ERROR: can't get kernel image!
U-Boot# setenv devnum 1
U-Boot# saveenv
Saving Environment to NAND...
Erasing Nand...
Attempt to erase non block-aligned data
U-Boot# run mmcboot
Booting from mmc ...
Wrong Image Format for bootm command
ERROR: can't get kernel image!
