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cros-build: Add support for hana (oak) and initial custom fw binary

Ricardo Cañuelo requested to merge rcn/firmware-tools:rcn_20210112_hana_support into master

cros-build: Add support for hana (oak) and initial custom fw binary

This adds a custom build script for 'hana' ('oak') that doesn't rely on Docker, as the cros_sdk for oak doesn't support the --nouse-image flag.

The script (cros_build/build_hana.sh) takes care of downloading the sources and creating a sdk chroot appropriately. Once inside the chroot, to build the firmware run:

./hana.sh setup ./hana.sh checkout ./hana.sh build

and the resulting firmware binary will be in cros_build/build/hana.bin.

All the downloaded and generated files will be contained in the cros_build/build directory.

This also includes the custom firmware binary for hana (firmware/hana.bin), although it wasn't tested.

Signed-off-by: Ricardo Cañuelo ricardo.canuelo@collabora.com

Edited by Ricardo Cañuelo

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