This series converts the extension board framework to use UCLASS as requested by Simon Glass, then adds extension support to pxe_utils and bootmeth_efi (not tested) to enable extension boards devicetree load in the standard boot process.
The UCLASS implementation provides one driver that manages all extension boards (alternative would be one U-Boot device per extension board). Simon is that what you would expect? Signed-off-by: Kory Maincent <[email protected]> --- Kory Maincent (16): MAINTAINERS: Add maintainer for extension board support boot: Move extension board support from cmd/ to boot/ boot: Add UCLASS support for extension boards board: ti: Exclude cape detection from XPL builds board: ti: Refactor cape detection code for readability board: ti: Convert cape detection to use UCLASS framework board: sunxi: Refactor CHIP board extension code board: sunxi: Convert extension support to UCLASS framework board: sandbox: Improve extension board scan implementation board: sandbox: Convert extension support to UCLASS framework board: compulab: Convert imx8mm-cl-iot-gate to UCLASS extension framework boot: Remove legacy extension board support boot: extension: Move overlay apply custom logic to command level boot: pxe_utils: Add extension board devicetree overlay support boot: bootmeth_efi: Refactor distro_efi_try_bootflow_files return logic boot: bootmeth_efi: Add extension board devicetree overlay support MAINTAINERS | 9 + .../imx8mm-cl-iot-gate/imx8mm-cl-iot-gate.c | 60 ++++--- board/sandbox/sandbox.c | 22 ++- board/sunxi/chip.c | 33 ++-- board/ti/common/Makefile | 2 + board/ti/common/cape_detect.c | 52 +++--- boot/Kconfig | 3 + boot/Makefile | 1 + boot/bootmeth_efi.c | 78 +++++++-- boot/extension-uclass.c | 138 ++++++++++++++++ boot/pxe_utils.c | 90 ++++++++++ cmd/Kconfig | 5 +- cmd/extension_board.c | 183 ++++++++++----------- doc/usage/cmd/extension.rst | 24 +-- include/dm/uclass-id.h | 1 + include/extension_board.h | 71 ++++++-- 16 files changed, 544 insertions(+), 228 deletions(-) --- base-commit: 9710d98e8942151fc0c62d54100d9d27e8263d04 change-id: 20250916-feature_sysboot_extension_board-958dd0072565 Best regards, -- Köry Maincent, Bootlin Embedded Linux and kernel engineering https://bootlin.com
