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path: root/resources/scripts/build/payload/u-boot
AgeCommit message (Collapse)Author
2022-12-27Do not rely on bashisms and behaviour undefined by the POSIX specification.Ferass 'Vitali64' EL HAFIDI
By making lbmk fully POSIX-compliant, it will be easier to port lbmk to other systems implementing POSIX such as Alpine Linux and FreeBSD. Signed-off-by: Ferass 'Vitali64' EL HAFIDI <vitali64pmemail@protonmail.com>
2022-12-10build/roms: Make coreboot crossgcc usable for payloads and modulesAlper Nebi Yasak
Add the coreboot-built cross-architecture toolchains to the PATH so that modules and payloads can use them. When building for a foreign-arch board, also export CROSS_COMPILE pointing to the appropriate prefix. Signed-off-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
2022-08-28build/payload: Add helper script to build U-Boot as payloadAlper Nebi Yasak
This enables building U-Boot for boards which have config files in resources/u-boot, and copying built files that could be usable to make coreboot payloads. Right now, there is no such board in this repo. The most important file here is "u-boot.elf", which is a combination of the U-Boot binary and the appropriate device-tree file for the board. Building this needs CONFIG_REMAKE_ELF=y on the U-Boot part, and using this with CONFIG_PAYLOAD_ELF=y on the coreboot build works fine. Note that this isn't enough to make U-Boot-only releases, since low-level prerequisites like arm-trusted-firmware aren't passed in to the U-Boot build system. Coreboot builds its own copy of TF-A and sets it up on the board, so using these U-Boot builds as payloads should still work. Signed-off-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>