Hi Nikhil, Sorry for the late reply. By issuse the boot cmd in uboot promot one by one. I found this problem is caused by the uboot environment "mmc_dev". It was default set to 0, while i need the device boot from emmc, which is recognized as mmc_dev 1. Also, the problem described in the origion post is not accuracy. The kernel was not startup automatically. It's that the boot cmd need be issue twice to make the kernel bringup. Regards, Liu Gan
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