blob: c8faaa67edb914b62342b3e060de02cec63b939c [file] [log] [blame] [edit]
# SPDX-License-Identifier: Apache-2.0
cmake_minimum_required(VERSION 3.20.0)
# Skip compiler checking
set(CMAKE_TRY_COMPILE_TARGET_TYPE STATIC_LIBRARY)
project(second_stage_bootloader)
enable_language(ASM)
set(rp2_common_dir ${ZEPHYR_HAL_RPI_PICO_MODULE_DIR}/src/rp2_common)
set(rp2040_dir ${ZEPHYR_HAL_RPI_PICO_MODULE_DIR}/src/rp2040)
set(common_dir ${ZEPHYR_HAL_RPI_PICO_MODULE_DIR}/src/common)
set(boot_stage_dir ${rp2_common_dir}/boot_stage2)
add_executable(boot_stage2)
if(${FLASH_TYPE} STREQUAL W25Q080)
set(flash_type_file boot2_w25q080.S)
elseif(${FLASH_TYPE} STREQUAL GENERIC_03H)
set(flash_type_file boot2_generic_03h.S)
elseif(${FLASH_TYPE} STREQUAL IS25LP080)
set(flash_type_file boot2_is25lp080.S)
elseif(${FLASH_TYPE} STREQUAL W25X10CL)
set(flash_type_file boot2_w25x10cl.S)
elseif(${FLASH_TYPE} STREQUAL AT25SF128A)
set(flash_type_file boot2_at25sf128a.S)
else()
message(FATAL_ERROR "No flash type selected")
endif()
target_sources(boot_stage2 PRIVATE ${boot_stage_dir}/${flash_type_file})
target_include_directories(boot_stage2 PUBLIC
..
${boot_stage_dir}/asminclude
${rp2_common_dir}/pico_platform/include
${rp2040_dir}/hardware_regs/include
${common_dir}/pico_base/include
${ZEPHYR_BASE}/include
)
target_link_options(boot_stage2 PRIVATE
"-nostartfiles"
"--specs=nosys.specs"
"LINKER:--script=${boot_stage_dir}/boot_stage2.ld"
)
# The second stage bootloader is compiled without kconfig definitions.
# Therefore, in order to use toolchain.h, it needs to define CONFIG_ARM.
target_compile_definitions(boot_stage2 PRIVATE -DCONFIG_ARM=1)
# Generates a binary file from the compiled bootloader
add_custom_command(TARGET boot_stage2
POST_BUILD
BYPRODUCTS boot_stage2.bin
COMMAND ${CMAKE_OBJCOPY} -Obinary $<TARGET_FILE:boot_stage2> boot_stage2.bin
)
# Checksums the binary, pads it, and generates an assembly file
add_custom_command(TARGET boot_stage2
POST_BUILD
BYPRODUCTS ${RP2_BOOTLOADER_BYPRODUCT}
COMMAND ${PYTHON_EXECUTABLE} ${boot_stage_dir}/pad_checksum
-s 0xffffffff boot_stage2.bin ${RP2_BOOTLOADER_BYPRODUCT}
)