soc: st: stm32: stm32n6x: add signing tool

Generate signed binary necessary to start a program from Flash on STM32N6

Signed-off-by: Guillaume Gautier <[email protected]>

Author: gautierg-st

soc/st/stm32/stm32n6x/CMakeLists.txt

@@ -8,3 +8,20 @@ zephyr_sources(
 zephyr_include_directories(.)
 
 set(SOC_LINKER_SCRIPT ${ZEPHYR_BASE}/include/zephyr/arch/arm/cortex_m/scripts/linker.ld CACHE INTERNAL "")
+
+if(${CMAKE_HOST_SYSTEM_NAME} STREQUAL Windows)
+  set(SIGNING_TOOL STM32_SigningTool_CLI.exe)
+else()
+  set(SIGNING_TOOL STM32_SigningTool_CLI)
+endif()
+
+set_property(GLOBAL APPEND PROPERTY extra_post_build_commands
+  COMMAND ${SIGNING_TOOL}
+  -in ${PROJECT_BINARY_DIR}/${CONFIG_KERNEL_BIN_NAME}.bin
+  -nk -t fsbl -hv 2.3
+  -o ${PROJECT_BINARY_DIR}/${CONFIG_KERNEL_BIN_NAME}.signed.bin
+  -dump ${PROJECT_BINARY_DIR}/${CONFIG_KERNEL_BIN_NAME}.signed.bin
+  WORKING_DIRECTORY ${PROJECT_BINARY_DIR}
+)
+
+set_property(TARGET runners_yaml_props_target PROPERTY bin_file ${CONFIG_KERNEL_BIN_NAME}.signed.bin)

soc/st/stm32/stm32n6x/Kconfig

@@ -16,3 +16,4 @@ config SOC_SERIES_STM32N6X
 	select INIT_ARCH_HW_AT_BOOT
 	select SOC_RESET_HOOK
 	select TRUSTED_EXECUTION_SECURE
+	select BUILD_OUTPUT_BIN