I use Yocto and I writed u-boot to I.mx6ul witch use imx_usb_loader by USB debug mode, but I can't find information how write kernel and rootfs, is it posible ? or if I can write it with mfgtools ??
I don't have access to ethernet and USB/SD CARD.
By the way, is there option in uboot to program kernel or rootfs via WIFI ?