dm368 boot from sd card

Pavel,

Do you want to enable SD boot or its just that you want to flash the boot loader to NAND from SD? If you just want to flash the NAND, you can use JTAG to connect to CCS and run "nandwriter" utility. 

It would be better to load UBL and u-boot from sd card. But i don't know how enable sd boot mode.

On screen i can see 13 pin (sd boot sel), but i dont know how use it.

Pavel,

Can you share the portion of schematics from the DM365 side where the boot mode pins are shown? 

I mean 13 pin of screen posted in the first post. I havn't any schematics of my DM368 board, only i can make a photo of PCB.

Pavel,

Pins on the other side is what matters. Without that info, its tough to predict whether you are using the right boot mode or not.

One more question,
If I understood you correctly:
if board boot fails from NAND then it try boot UBL from sd/mmc? Not necessary  switch board to sd boot mode. Right?
Thank you.
 

Pavel,

If the second boot option is SD/MMC and if NAND boot fails, then it will attempt SD/MMC. Please verify the boot mode options from the TRM and check the boot mode settings of your board.