The existing freescale_imx8mnevk_defconfig builds an image for the DDR4 variant of the dev board. This seems weird, as the LPDDR4 variant appears to be the more common one (this is what I got when ordering the dev board from www.nxp.com), and in the yocto layer the "default" config refers to the LPDDR4 variant as well (and one has to explicitly specify the DDR4 variant). At the very least it would be nice if the board/freescale/imx8mnevk/readme.txt could document what needs to be changed for the LPDDR4 variant. Even better would be another defconfig. To be more in line with yocto it possibly might be good to make the freescale_imx8mnevk_defconfig build the LPDDR4 variant, and have a freescale_imx8mnevk_ddr4_defconfig.
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