I'm trying to diagnose why our AM335x based CPU board (based on the AM335x 
Starter Kit) can boot SPL
and U-Boot from an MMC card, but is unable to boot from NAND (connected to CS0).

Following the TI wiki
(http://processors.wiki.ti.com/index.php/AM335x_U-Boot_User%27s_Guide#Flashing_images_to_NAND_in_SD_boot)
I:-

(1) boot from MMC
(2) erase the nand
(3) copy MLO from MMC into NAND
(4) verified it copied correctly (using crc32)

When I reboot the board in NAND mode, I get nothing on UART0.

If I reboot in MMC mode, SPL and U-Boot load correctly.

Can anyone give me some pointers on the boot sequence, and where I might look 
to help debug the
problem ?

Regards
Mark JACKSON
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