Forum Post: RE: AM3874 custom board : Data written into the Nand flash did not stay on upon power cycle

Poh,

[quote user="Poh Boon Teo"]

must I name the file to MLO before I flash in the code??

[/quote]

No, MLO is used only for SD boot. For NAND boot, you should use ti8148_evm_min_nand and the generated output file will be u-boot.min.nand.  See http://processors.wiki.ti.com/index.php/TI81XX_PSP_UBOOT_User_Guide#Building_U-Boot

Make sure also you configure the Boot Mode pins for NAND boot:

http://processors.wiki.ti.com/index.php/TI81XX_PSP_UBOOT_User_Guide#EVM_Switch_Settings

Best regards,
Pavel