I am working on IMX6 based target board and as per the below link https://community.freescale.com/docs/DOC-95458 , imxopt in u-boot can be used to flash the eFuses to select the boot device . But , In my target board , I have the NOR flash in it and u-boot is supposed to be there in the NOR flash. So how processor get boot from NOR Flash , it must be having the right eFuse settings to get boot from NOR flash. I cannot use imxopt , as uboot is in the NOR Flash itself. Please advice.