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sysbuild: load CRACEN microcode once #412

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12 changes: 12 additions & 0 deletions sysbuild/CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -106,6 +106,18 @@ function(bm_install_setup)
sysbuild_add_dependencies(FLASH ${DEFAULT_IMAGE} softdevice)
endif()
endif()

if(SB_CONFIG_BM_CRACEN_MICROCODE_LOAD_ONCE)
if(SB_CONFIG_BM_CRACEN_MICROCODE_LOAD_MCUBOOT)
set_config_bool(firmware_loader CONFIG_CRACEN_LOAD_MICROCODE n)
set_config_bool(mcuboot CONFIG_CRACEN_LOAD_MICROCODE y)
set_config_bool(${DEFAULT_IMAGE} CONFIG_CRACEN_LOAD_MICROCODE n)
else(SB_CONFIG_BM_CRACEN_MICROCODE_LOAD_FIRMWARE_LOADER)
set_config_bool(firmware_loader CONFIG_CRACEN_LOAD_MICROCODE y)
set_config_bool(${DEFAULT_IMAGE} CONFIG_CRACEN_LOAD_MICROCODE n)
endif()
endif()

endfunction()

function(${SYSBUILD_CURRENT_MODULE_NAME}_pre_cmake)
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20 changes: 20 additions & 0 deletions sysbuild/Kconfig.bm
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Original file line number Diff line number Diff line change
Expand Up @@ -19,6 +19,13 @@ config BM_BOOTLOADER_MCUBOOT

endchoice

config BM_CRACEN_MICROCODE_LOAD_ONCE
bool "Load CRACEN microcode once only"
depends on BM_CRACEN_MICROCODE_LOAD_MCUBOOT || BM_CRACEN_MICROCODE_LOAD_FIRMWARE_LOADER
help
If enabled, will only load microcode for CRACEN in the first system bootable image,
which will be either MCUboot or Firmware Loader, depending on project configuration.

if BM_BOOTLOADER_MCUBOOT

menu "MCUboot configuration"
Expand Down Expand Up @@ -101,6 +108,13 @@ endchoice

endmenu

config BM_CRACEN_MICROCODE_LOAD_MCUBOOT
bool
depends on BM_BOOTLOADER_MCUBOOT_SIGNATURE_TYPE_ED25519
default y
help
Hidden symbol indicating if MCUboot is using CRACEN.

endif # BM_BOOTLOADER_MCUBOOT

if !BM_BOOTLOADER_NONE
Expand Down Expand Up @@ -152,6 +166,12 @@ config BM_FIRMWARE_LOADER_IMAGE_PATH
help
Source directory of firmware loader image.

config BM_CRACEN_MICROCODE_LOAD_FIRMWARE_LOADER
bool
default y
help
Hidden symbol indicating if Firmware Loader is using CRACEN.

endif

endif
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