Introduction ============ Armadeus APFxx are Systems On Module (SOM) based on Freescale/NXP i.MX processors associated with an FPGA (except on APF28). Non volatile data are stored in on-module NOR or NAND Flash, depending on the model. These SOM can be used on Armadeus development boards or with custom docking boards. Supported platforms =================== Buildroot currently supports the following Armadeus platforms with the associated defconfigs: * APF27 SOM + devt board -> armadeus_apf27_defconfig * APF51 SOM + devt board -> armadeus_apf51_defconfig * APF28 SOM + devt board -> armadeus_apf28_defconfig Vanilla Linux versions are preferred to Freescale's one in these configurations. How to build it =============== Configure Buildroot ------------------- Let's say you own an APFxx SOM with it's corresponding development board, all you have to do is: $ make armadeus_apfxx_defconfig where "apfxx" is the version of your SOM. Launch build ------------ $ make Result of the build ------------------- When the build is finished, you will end up with: output/images/ +-- imx**-apfxxdev.dtb [1] +-- rootfs.tar +-- rootfs.ubi +-- rootfs.ubifs +-- uImage [1] Only if the kernel version used uses a Device Tree. Building U-Boot is currently not supported in these configurations. Installation ============ You will require a serial connection to the board and a TFTP server on your Host PC. Assuming your server is configured for exporting /tftpboot/ directory, you will have to copy the generated images to it: $ cp output/images/uImage /tftpboot/apfxx-linux.bin $ cp output/images/*.dtb /tftpboot/ $ cp output/images/rootfs.ubi /tftpboot/apfxx-rootfs.ubi where "apfxx" is the version of your SOM, as used with _defconfigs. Then on your serial terminal, all you have to do is: * interrupt the boot process and access U-Boot console by pressing any key when booting, * configure board and server IP addresses with "ipaddr" and "serverip" environment variables, * if you want to update kernel: BIOS > run update_kernel * if you want to update device tree: BIOS > run update_dtb * if you want to update rootfs: BIOS > run update_rootfs That's it !