NXP i.MX6SL EVK board
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To build a minimal support for this board:
$ make imx6slevk_defconfig
$ make
Buildroot prepares a bootable "sdcard.img" image in the output/images/
directory, ready to be flashed into the SD card:
$ sudo dd if=output/images/sdcard.img of=/dev/; sync
Then insert the SD card into the SD2 slot and boot the board.