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cmake_minimum_required(VERSION 3.5)
project(chipdb-nexus NONE)
set(ALL_NEXUS_FAMILIES LIFCL)
# NOTE: Unlike iCE40 and ECP5; one database can cover all densities of a given family
set(NEXUS_FAMILIES ${ALL_NEXUS_FAMILIES} CACHE STRING
"Include support for these Nexus families (available: ${ALL_NEXUS_FAMILIES})")
message(STATUS "Enabled Nexus families: ${NEXUS_FAMILIES}")
if(DEFINED NEXUS_CHIPDB)
add_custom_target(chipdb-nexus-bbas ALL)
else()
# shared among all families
set(OXIDE_INSTALL_PREFIX "${CMAKE_INSTALL_PREFIX}" CACHE STRING
"prjoxide install prefix")
message(STATUS "prjoxide install prefix: ${OXIDE_INSTALL_PREFIX}")
set(all_device_bbas)
file(MAKE_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/chipdb)
foreach(subfamily ${NEXUS_FAMILIES})
if(NOT subfamily IN_LIST ALL_NEXUS_FAMILIES)
message(FATAL_ERROR "${subfamily} is not a supported Nexus family")
endif()
set(family_bba chipdb/chipdb-${subfamily}.bba)
set(PRJOXIDE_TOOL ${OXIDE_INSTALL_PREFIX}/bin/prjoxide)
add_custom_command(
OUTPUT ${family_bba}
COMMAND
${PRJOXIDE_TOOL} bba-export ${subfamily} ${CMAKE_CURRENT_SOURCE_DIR}/constids.inc ${family_bba}.new
# atomically update
COMMAND ${CMAKE_COMMAND} -E rename ${family_bba}.new ${family_bba}
DEPENDS
${PRJOXIDE_TOOL}
${CMAKE_CURRENT_SOURCE_DIR}/constids.inc
${CMAKE_CURRENT_SOURCE_DIR}/bba_version.inc
${PREVIOUS_CHIPDB_TARGET}
VERBATIM)
list(APPEND all_device_bbas ${family_bba})
if(SERIALIZE_CHIPDBS)
set(PREVIOUS_CHIPDB_TARGET ${CMAKE_CURRENT_BINARY_DIR}/${family_bba})
endif()
endforeach()
add_custom_target(chipdb-nexus-bbas ALL DEPENDS ${all_device_bbas})
get_directory_property(has_parent PARENT_DIRECTORY)
if(has_parent)
set(NEXUS_CHIPDB ${CMAKE_CURRENT_BINARY_DIR}/chipdb PARENT_SCOPE)
# serialize chipdb build across multiple architectures
set(PREVIOUS_CHIPDB_TARGET chipdb-nexus-bbas PARENT_SCOPE)
else()
message(STATUS "Build nextpnr with -DNEXUS_CHIPDB=${CMAKE_CURRENT_BINARY_DIR}/chipdb")
endif()
endif()
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