Hi,
I set the boot sequence of am335x board to boot[4..0]=00100, which means first UART, then MMC, and then NAND flash. But I can NOT start the board if I run reboot in the shell. It displays CCCCCCC and halt. after about 4 minute, it will restart again, and this time, the board can boot up. If I cut off the power directly, the board will boot up normally.
I inserted a MMC card trying to boot from it, the same thing happened, so it halted after it tried the UART.
Is this a bug of Boot Rom? Is there a solution or workaround?
Acturally I don't want to boot from UART, I want to try MMC first, if failed, then boot from NAND. but I can only find this boot configure that try MMC first and then NAND.