Arcturus uCP1020 SoM ==================== This tutorial describes how to use the predefined Buildroot configuration for the Arcturus uCP1020 SoM platform. Additional information about this module can be found at Building -------- make arcturus_ucp1020_defconfig make Result of the build ------------------- After building, you should obtain this tree: output/images/ +-- rootfs.jffs2 +-- rootfs.tar +-- u-boot.bin +-- ucp1020.dtb +-- uImage Flashing -------- You'll need to program the files created by buildroot into the NOR flash. 1. Program the new U-Boot binary (optional) If you don't feel confident upgrading your bootloader then don't do it, it's unnecessary most of the time. B$ tftp u-boot.bin B$ protect off 0xeff80000 +$filesize B$ erase 0xeff80000 +$filesize B$ cp.b $loadaddr 0xeff80000 $filesize B$ protect on 0xeff80000 +$filesize 2. Program the kernel B$ tftp uImage B$ erase 0xec140000 +$filesize B$ cp.b $loadaddr 0xec140000 $filesize 3. Program the DTB B$ tftp ucp1020.dtb B$ erase 0xec100000 +$filesize B$ cp.b $loadaddr 0xec100000 $filesize 4. Program the jffs2 root filesystem B$ tftp rootfs.jffs2 B$ erase 0xec800000 0xee8fffff B$ cp.b $loadaddr 0xec800000 $filesize 5. Booting your new system B$ setenv norboot 'setenv bootargs root=/dev/mtdblock1 rootfstype=jffs2 console=$consoledev,$baudrate;bootm 0xec140000 - 0xec100000' If you want to set this boot option as default: B$ setenv bootcmd 'run norboot' B$ saveenv ...or for a single boot: B$ run norboot Good Luck !