sysbuild: Add radio image for FW loader

Add a possibility to select radio image for the FW loader.

Ref: NCSDK-33237

Signed-off-by: Tomasz Chyrowicz <[email protected]>

Author: tomchy

sysbuild/CMakeLists.txt

@@ -352,6 +352,13 @@ function(${SYSBUILD_CURRENT_MODULE_NAME}_pre_cmake)
           add_dependencies(${SB_CONFIG_FIRMWARE_LOADER_IMAGE_NAME} ${image})
           sysbuild_add_dependencies(FLASH ${SB_CONFIG_FIRMWARE_LOADER_IMAGE_NAME} ${image})
         endif()
+
+        if(SB_CONFIG_FIRMWARE_LOADER_RADIO AND NOT SB_CONFIG_FIRMWARE_LOADER_RADIO_IMAGE_NONE)
+          if(NOT ${image} STREQUAL ${SB_CONFIG_FIRMWARE_LOADER_RADIO_IMAGE_NAME})
+            add_dependencies(${SB_CONFIG_FIRMWARE_LOADER_RADIO_IMAGE_NAME} ${image})
+            sysbuild_add_dependencies(FLASH ${SB_CONFIG_FIRMWARE_LOADER_RADIO_IMAGE_NAME} ${image})
+          endif()
+        endif()
       endforeach()
     endif()
 
@@ -1050,5 +1057,6 @@ include(${CMAKE_CURRENT_LIST_DIR}/flprcore.cmake)
 include(${CMAKE_CURRENT_LIST_DIR}/pprcore.cmake)
 include(${CMAKE_CURRENT_LIST_DIR}/secureboot.cmake)
 include(${CMAKE_CURRENT_LIST_DIR}/mcuboot.cmake)
+include(${CMAKE_CURRENT_LIST_DIR}/firmware_loader_radio.cmake)
 
 store_ncs_vars()

sysbuild/Kconfig.firmware_loader_radio

@@ -0,0 +1,65 @@
+#
+# Copyright (c) 2025 Nordic Semiconductor
+#
+# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+#
+
+menu "Network core configuration"
+	depends on SUPPORT_NETCORE
+
+config SUPPORT_FIRMWARE_LOADER_IPC_RADIO
+	bool
+	default y
+
+choice FIRMWARE_LOADER_RADIO
+	prompt "Firmware loader radio image"
+	default FIRMWARE_LOADER_RADIO_IMAGE_IPC_RADIO if FIRMWARE_LOADER_IMAGE_BLE_MCUMGR
+	default FIRMWARE_LOADER_RADIO_IMAGE_IPC_RADIO if NRF_DEFAULT_IPC_RADIO && NETCORE_REMOTE_BOARD_TARGET_CPUCLUSTER != ""
+	default FIRMWARE_LOADER_RADIO_IMAGE_NONE if NRF_DEFAULT_EMPTY && NETCORE_REMOTE_BOARD_TARGET_CPUCLUSTER != ""
+	depends on MCUBOOT_MODE_FIRMWARE_UPDATER
+	help
+	  Select the firmware loader radio image to include in the build.
+
+config FIRMWARE_LOADER_RADIO_IMAGE_NONE
+	bool "None"
+	help
+	  Do not include a firmware loader radio image in the build.
+
+menuconfig FIRMWARE_LOADER_RADIO_IMAGE_IPC_RADIO
+	bool "ipc_radio"
+	depends on SUPPORT_FIRMWARE_LOADER_IPC_RADIO
+	help
+	  Include the IPC Radio firmware loader image as the firmware loader radio image to use.
+
+if FIRMWARE_LOADER_RADIO_IMAGE_IPC_RADIO
+
+config FIRMWARE_LOADER_RADIO_IMAGE_IPC_RADIO_BT_HCI_IPC
+	bool "HCI serialization for Bluetooth"
+	default y
+	help
+	  Use HCI serialization for Bluetooth.
+
+endif # FIRMWARE_LOADER_RADIO_IMAGE_IPC_RADIO
+
+endchoice
+
+config FIRMWARE_LOADER_RADIO_IMAGE_NAME
+	string
+	default "fw_loader_ipc_radio" if FIRMWARE_LOADER_RADIO_IMAGE_IPC_RADIO_BT_HCI_IPC
+	help
+	  Name of firmware loader radio image.
+
+config FIRMWARE_LOADER_RADIO_IMAGE_PATH
+	string
+	default "$(ZEPHYR_NRF_MODULE_DIR)/applications/ipc_radio" if FIRMWARE_LOADER_RADIO_IMAGE_IPC_RADIO
+	help
+	  Source directory of firmware loader image.
+
+config FIRMWARE_LOADER_RADIO_BOARD
+	string
+	default "$(BOARD)/nrf54h20/cpurad" if SOC_NRF54H20
+	default "$(BOARD)/nrf54l15/cpurad" if SOC_NRF54L15
+	help
+	  Board for firmware loader radio image.
+
+endmenu

sysbuild/Kconfig.sysbuild

@@ -94,3 +94,4 @@ rsource "Kconfig.lwm2m_carrier"
 rsource "Kconfig.cracen"
 rsource "Kconfig.tfm"
 rsource "Kconfig.firmware_loader"
+rsource "Kconfig.firmware_loader_radio"

sysbuild/firmware_loader_radio.cmake

@@ -0,0 +1,33 @@
+# Copyright (c) 2025 Nordic Semiconductor
+#
+# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+
+# Include network core image if enabled
+if(SB_CONFIG_SUPPORT_NETCORE AND NOT SB_CONFIG_FIRMWARE_LOADER_RADIO_IMAGE_NONE AND DEFINED
+   SB_CONFIG_FIRMWARE_LOADER_RADIO_IMAGE_NAME)
+  ExternalZephyrProject_Add(
+    APPLICATION ${SB_CONFIG_FIRMWARE_LOADER_RADIO_IMAGE_NAME}
+    SOURCE_DIR ${SB_CONFIG_FIRMWARE_LOADER_RADIO_IMAGE_PATH}
+    APP_TYPE FIRMWARE_LOADER
+    BOARD ${SB_CONFIG_FIRMWARE_LOADER_RADIO_BOARD}
+    BOARD_REVISION ${BOARD_REVISION}
+  )
+
+  # Include ipc_radio overlays if ipc_radio is enabled.
+  if(SB_CONFIG_FIRMWARE_LOADER_RADIO_IMAGE_IPC_RADIO)
+    if(SB_CONFIG_FIRMWARE_LOADER_RADIO_IMAGE_IPC_RADIO_BT_HCI_IPC)
+      add_overlay_config(
+        ${SB_CONFIG_FIRMWARE_LOADER_RADIO_IMAGE_NAME}
+        ${SB_CONFIG_FIRMWARE_LOADER_RADIO_IMAGE_PATH}/overlay-bt_hci_ipc.conf
+      )
+    endif()
+
+    # Check if the FW loader defines a custom overlay file for ipc_radio image
+    if(EXISTS "${SB_CONFIG_FIRMWARE_LOADER_IMAGE_PATH}/sysbuild/ipc_radio.conf")
+      add_overlay_config(
+        ${SB_CONFIG_FIRMWARE_LOADER_RADIO_IMAGE_NAME}
+        ${SB_CONFIG_FIRMWARE_LOADER_IMAGE_PATH}/sysbuild/ipc_radio.conf
+      )
+    endif()
+  endif()
+endif()