boards: nrf54h20_iron: Allow radio updates

Add necessary changes to provide a simple, updateable radio image.

Ref: NCSDK-33316

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

Author: tomchy

sysbuild/Kconfig.mcuboot

@@ -68,6 +68,7 @@ config MCUBOOT_APPLICATION_IMAGE_NUMBER
 config MCUBOOT_NETWORK_CORE_IMAGE_NUMBER
 	int
 	default 1 if NETCORE_APP_UPDATE && !MCUBOOT_MODE_SINGLE_APP
+	default 1 if BOOTLOADER_MCUBOOT && !NETCORE_NONE
 	default -1
 
 config MCUBOOT_WIFI_PATCHES_IMAGE_NUMBER

sysbuild/Kconfig.netcore

@@ -18,7 +18,8 @@ config SUPPORT_NETCORE
 config NETCORE_REMOTE_BOARD_TARGET_CPUCLUSTER
 	string
 	default "cpunet" if SOC_NRF5340_CPUAPP
-	default "cpurad" if SOC_NRF54H20_CPUAPP
+	default "cpurad" if SOC_NRF54H20_CPUAPP && !SOC_NRF54H20_IRON
+	default "cpurad/iron" if SOC_NRF54H20_IRON
 
 config NETCORE_REMOTE_DOMAIN
 	string

sysbuild/image_configurations/updateable_image_default.cmake

@@ -0,0 +1,43 @@
+# Copyright (c) 2025 Nordic Semiconductor
+#
+# SPDX-License-Identifier: Apache-2.0
+
+# This sysbuild CMake file sets the sysbuild controlled settings as properties
+# on all images.
+
+set_config_bool(${image} CONFIG_BOOTLOADER_MCUBOOT "${SB_CONFIG_BOOTLOADER_MCUBOOT}")
+set_config_string(${image} CONFIG_MCUBOOT_SIGNATURE_KEY_FILE
+                  "${SB_CONFIG_BOOT_SIGNATURE_KEY_FILE}"
+)
+set_config_string(${image} CONFIG_MCUBOOT_ENCRYPTION_KEY_FILE
+                  "${SB_CONFIG_BOOT_ENCRYPTION_KEY_FILE}"
+)
+
+if(SB_CONFIG_BOOTLOADER_MCUBOOT)
+  if("${SB_CONFIG_SIGNATURE_TYPE}" STREQUAL "NONE")
+    set_config_bool(${image} CONFIG_MCUBOOT_GENERATE_UNSIGNED_IMAGE y)
+  else()
+    set_config_bool(${image} CONFIG_MCUBOOT_GENERATE_UNSIGNED_IMAGE n)
+  endif()
+
+  if(SB_CONFIG_MCUBOOT_MODE_SINGLE_APP)
+    set_config_bool(${image} CONFIG_MCUBOOT_BOOTLOADER_MODE_SINGLE_APP y)
+  elseif(SB_CONFIG_MCUBOOT_MODE_SWAP_WITHOUT_SCRATCH)
+    set_config_bool(${image} CONFIG_MCUBOOT_BOOTLOADER_MODE_SWAP_WITHOUT_SCRATCH y)
+  elseif(SB_CONFIG_MCUBOOT_MODE_SWAP_SCRATCH)
+    set_config_bool(${image} CONFIG_MCUBOOT_BOOTLOADER_MODE_SWAP_SCRATCH y)
+  elseif(SB_CONFIG_MCUBOOT_MODE_OVERWRITE_ONLY)
+    set_config_bool(${image} CONFIG_MCUBOOT_BOOTLOADER_MODE_OVERWRITE_ONLY y)
+  elseif(SB_CONFIG_MCUBOOT_MODE_DIRECT_XIP)
+    set_config_bool(${image} CONFIG_MCUBOOT_BOOTLOADER_MODE_DIRECT_XIP y)
+  elseif(SB_CONFIG_MCUBOOT_MODE_DIRECT_XIP_WITH_REVERT)
+    set_config_bool(${image} CONFIG_MCUBOOT_BOOTLOADER_MODE_DIRECT_XIP_WITH_REVERT y)
+  elseif(SB_CONFIG_MCUBOOT_MODE_RAM_LOAD)
+    # RAM load mode requires XIP be disabled and flash size be set to 0
+    set_config_bool(${image} CONFIG_MCUBOOT_BOOTLOADER_MODE_RAM_LOAD y)
+    set_config_bool(${image} CONFIG_XIP n)
+    set_config_int(${image} CONFIG_FLASH_SIZE 0)
+  elseif(SB_CONFIG_MCUBOOT_MODE_FIRMWARE_UPDATER)
+    set_config_bool(${image} CONFIG_MCUBOOT_BOOTLOADER_MODE_FIRMWARE_UPDATER y)
+  endif()
+endif()

sysbuild/netcore.cmake

@@ -21,6 +21,11 @@ if(SB_CONFIG_SUPPORT_NETCORE AND NOT SB_CONFIG_NETCORE_NONE AND DEFINED SB_CONFI
     BOARD ${board_target_netcore}
     BOARD_REVISION ${BOARD_REVISION}
   )
+  if(SB_CONFIG_BOOTLOADER_MCUBOOT)
+    set_target_properties(${SB_CONFIG_NETCORE_IMAGE_NAME} PROPERTIES
+      IMAGE_CONF_SCRIPT ${ZEPHYR_NRF_MODULE_DIR}/sysbuild/image_configurations/updateable_image_default.cmake
+    )
+  endif()
 
   if(NOT "${SB_CONFIG_NETCORE_IMAGE_DOMAIN}" IN_LIST PM_DOMAINS)
     list(APPEND PM_DOMAINS ${SB_CONFIG_NETCORE_IMAGE_DOMAIN})