add_subdirectory(atmel)
add_subdirectory(cmsis)
add_subdirectory(nordic)
add_subdirectory(nxp)
add_subdirectory(openisa)
add_subdirectory(st)
add_subdirectory(ti)
add_subdirectory_ifdef(CONFIG_HAS_ALTERA_HAL altera)
add_subdirectory(microchip)