We are working on the Nitrogen6_lite EVK board and porting our linux image in it.Everything works fine. But the u-boot image as per boundary devices provided is from SPI-NOR flash. Now our requirement is to boot from only SD card in our custom board. As kernel image boots from SD card already, We want the same wit u-boot also instead SPI-NOR flash. I think we have to change bootscript.txt and 6x_upgrade for the same. Kindly support us with this request ASAP.