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cmake: modules: boards: Fix board deprecation for HWMv2 

Deprecating boards comes with similar challenges as with board aliases,
since BOARD_DEPRECATED is also set after parsing BOARD as user input.

With this patch, a deprecated board can be properly translated to a
board with identifiers. This opens up the possibility of recording all
legacy board names in `boards/deprecated.cmake`, such as:

   set(mps2_an521_remote_DEPRECATED mps2/an521/cpu1)

Unlike with aliases, though, there are additional restrictions for
building with BOARD=<deprecated>, which only makes this feature suitable
for deprecating v1 boards:

 * BOARD=<deprecated>/<identifier> is never allowed.
 * BOARD=<deprecated>@<revision> is not allowed if the old board already
   corresponds to a new board revision:

   set(<deprecated>_DEPRECATED <new-board>@<new-revision>)

Future enhancements will be needed for deprecating v2 boards.

Signed-off-by: Grzegorz Swiderski <grzegorz.swiderski@nordicsemi.no>
This commit is contained in:
Grzegorz Swiderski 2024-02-15 18:08:34 +01:00 committed by Carles Cufi
parent dca54e000a
commit 105a2bae84
1 changed files with 20 additions and 1 deletions
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21
cmake/modules/boards.cmake
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@ -92,11 +92,30 @@ if(DEFINED ZEPHYR_BOARD_ALIASES)
set(BOARD_IDENTIFIER ${BOARD_ALIAS_IDENTIFIER}${BOARD_IDENTIFIER})
endif()
endif()
include(${ZEPHYR_BASE}/boards/deprecated.cmake)
if(${BOARD}_DEPRECATED)
set(BOARD_DEPRECATED ${BOARD} CACHE STRING "Deprecated board name, provided by user")
set(BOARD ${${BOARD}_DEPRECATED})
parse_board_components(${BOARD}_DEPRECATED BOARD BOARD_DEPRECATED_REVISION BOARD_DEPRECATED_IDENTIFIER)
message(WARNING "Deprecated BOARD=${BOARD_DEPRECATED} name specified, board automatically changed to: ${BOARD}.")
if(DEFINED BOARD_DEPRECATED_REVISION)
if(DEFINED BOARD_REVISION)
message(FATAL_ERROR
"Invalid board revision: ${BOARD_REVISION}\n"
"Deprecated board '${BOARD_DEPRECATED}' is now implemented as a revision of another board "
"(${BOARD}@${BOARD_DEPRECATED_REVISION}), so the specified revision does not apply. "
"Please consult the documentation for '${BOARD}' to see how to build for the new board."
)
endif()
set(BOARD_REVISION ${BOARD_DEPRECATED_REVISION})
endif()
if(DEFINED BOARD_IDENTIFIER)
message(FATAL_ERROR
"Deprecated boards cannot have board identifiers: ${BOARD_DEPRECATED}${BOARD_IDENTIFIER}.\n"
"Please consult the documentation for '${BOARD}' to see how to build for the new board."
)
endif()
set(BOARD_IDENTIFIER ${BOARD_DEPRECATED_IDENTIFIER})
endif()
zephyr_boilerplate_watch(BOARD)