Build ===== First, configure Buildroot for your WarpBoard. make warpboard_defconfig Build all components: make You will find in ./output/images/ the following files: - imx6sl-warp.dtb - rootfs.ext4 - rootfs.tar - sdcard.img - u-boot.imx - zImage Update uboot ============ - Put warpboard in USB download mode by closing the j2 jumper on the daugther board - Load u-boot.imx in the WarpBoard by using the imx-usb-loader host utility: $ ./output/host/usr/bin/imx_usb -c output/host/etc/imx-loader.d/ output/images/u-boot.imx - U-Boot will appear in minicom - Reset the U-Boot environment to its default: => env default -f -a => saveenv - Run the DFU command in U-Boot: => dfu 0 mmc 0 - Transfer U-Boot into flash by running this command in host side: $ sudo ./output/host/usr/bin/dfu-util -D output/images/u-boot.imx -a boot - remove power and put the WarpBoard back into normal boot mode by opening the j2 jumper. Update linux & rootfs ===================== Run the 'ums' command from the U-Boot prompt to mount the eMMC as USB mass storage: => ums 0 mmc 0 And then flash the sdcard.img into the eMMC: dd if=output/images/sdcard.img of=/dev/ *** WARNING! This will destroy all the eMMC content. Use it with care! *** Using bluetooth ================ Enable the bluez_utils or bluez5_utils package, and then run: $ hciattach /dev/ttymxc4 any $ hciconfig hci0 up Using Wifi ========== # modprobe brcmfmac # iwconfig wlan0 essid ACCESSPOINTNAME # wpa_passphrase ACCESSPOINTNAME > /etc/wpa.conf (enter the wifi password and press enter) # wpa_supplicant -Dwext -iwlan0 -c /etc/wpa.conf & # udhcpc -i wlan0 # ping buildroot.org Enjoy!