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cmake_minimum_required(VERSION 3.5)
project(chipdb-ice40 NONE)
set(ALL_ICE40_DEVICES 384 1k 5k u4k 8k)
set(ICE40_DEVICES ${ALL_ICE40_DEVICES} CACHE STRING
"Include support for these iCE40 devices (available: ${ALL_ICE40_DEVICES})")
message(STATUS "Enabled iCE40 devices: ${ICE40_DEVICES}")
if(DEFINED ICE40_CHIPDB)
add_custom_target(chipdb-ice40-bbas ALL)
else()
find_package(Python3 3.5 REQUIRED COMPONENTS Interpreter)
# shared among all families
set(SERIALIZE_CHIPDBS TRUE CACHE BOOL
"Serialize device data preprocessing to minimize memory use")
set(icestorm_default_install_prefix ${CMAKE_INSTALL_PREFIX})
# for compatibility with old build scripts
if(DEFINED ICEBOX_ROOT)
message(WARNING "-DICEBOX_ROOT= is deprecated, use -DICESTORM_INSTALL_PREFIX=${ICEBOX_ROOT} instead")
get_filename_component(dir ${ICEBOX_ROOT} DIRECTORY)
get_filename_component(dir ${dir} DIRECTORY)
set(icestorm_default_install_prefix ${dir})
endif()
set(ICESTORM_INSTALL_PREFIX ${icestorm_default_install_prefix} CACHE STRING
"IceStorm install prefix")
message(STATUS "IceStorm install prefix: ${ICESTORM_INSTALL_PREFIX}")
if(NOT ICEBOX_DATADIR)
set(ICEBOX_DATADIR ${ICESTORM_INSTALL_PREFIX}/share/icebox)
endif()
message(STATUS "icebox data directory: ${ICEBOX_DATADIR}")
set(all_device_bbas)
file(MAKE_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/chipdb)
foreach(device ${ICE40_DEVICES})
if(NOT device IN_LIST ALL_ICE40_DEVICES)
message(FATAL_ERROR "Device ${device} is not a supported iCE40 device")
endif()
if(device STREQUAL "5k")
set(timing_opts
--slow ${ICEBOX_DATADIR}/timings_up5k.txt)
elseif(device STREQUAL "u4k")
set(timing_opts
--slow ${ICEBOX_DATADIR}/timings_u4k.txt)
elseif(device STREQUAL "384")
set(timing_opts
--slow ${ICEBOX_DATADIR}/timings_lp384.txt)
else()
set(timing_opts
--fast ${ICEBOX_DATADIR}/timings_hx${device}.txt
--slow ${ICEBOX_DATADIR}/timings_lp${device}.txt)
endif()
set(device_bba chipdb/chipdb-${device}.bba)
add_custom_command(
OUTPUT ${device_bba}
COMMAND ${Python3_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/chipdb.py
-p ${CMAKE_CURRENT_SOURCE_DIR}/constids.inc
-g ${CMAKE_CURRENT_SOURCE_DIR}/gfx.h
${timing_opts}
${ICEBOX_DATADIR}/chipdb-${device}.txt
> ${device_bba}.new
# atomically update
COMMAND ${CMAKE_COMMAND} -E rename ${device_bba}.new ${device_bba}
DEPENDS
${CMAKE_CURRENT_SOURCE_DIR}/chipdb.py
${CMAKE_CURRENT_SOURCE_DIR}/constids.inc
${CMAKE_CURRENT_SOURCE_DIR}/gfx.h
${PREVIOUS_CHIPDB_TARGET}
VERBATIM)
list(APPEND all_device_bbas ${device_bba})
if(SERIALIZE_CHIPDBS)
set(PREVIOUS_CHIPDB_TARGET ${CMAKE_CURRENT_BINARY_DIR}/${device_bba})
endif()
endforeach()
add_custom_target(chipdb-ice40-bbas ALL DEPENDS ${all_device_bbas})
get_directory_property(has_parent PARENT_DIRECTORY)
if(has_parent)
set(ICE40_CHIPDB ${CMAKE_CURRENT_BINARY_DIR}/chipdb PARENT_SCOPE)
# serialize chipdb build across multiple architectures
set(PREVIOUS_CHIPDB_TARGET chipdb-ice40-bbas PARENT_SCOPE)
else()
message(STATUS "Build nextpnr with -DICE40_CHIPDB=${CMAKE_CURRENT_BINARY_DIR}/chipdb")
endif()
endif()
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