I have a custom board based on i.MX6ULL (MCIMX6Y2CVM05AA 14X14) with 4 GB DDR3 RAM & 4 GB eMMC. I am trying to setup u-boot for the board. Shall i be changing the "./board/freescale/mx6ull_ddr3_arm2/imximage.cfg" file with the DDR calibration coefficients? Or shall i be changing "./board/freescale/mx6ullevk/imximage.cfg" in u-boot? Can anyone guide me with the detailed changes i need to make to bring up u-boot on this custom board? I am using mfgtool2 to flash using "mfgtool2-yocto-mx-14x14-arm2-emmc-ull.vbs". Am i using mfgtool2 correctly? Much needed help!