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

boards/nordic/nrf54h20dk/Kconfig.defconfig

@@ -27,3 +27,10 @@ config FLASH_LOAD_OFFSET
 	default 0x2c000 if !USE_DT_CODE_PARTITION
 
 endif # BOARD_NRF54H20DK_NRF54H20_CPUAPP_IRON
+
+if BOARD_NRF54H20DK_NRF54H20_CPURAD_IRON
+
+config ROM_START_OFFSET
+	default 0x800 if BOOTLOADER_MCUBOOT
+
+endif # BOARD_NRF54H20DK_NRF54H20_CPURAD_IRON

boards/nordic/nrf54h20dk/nrf54h20dk_nrf54h20_cpuapp_iron.dts

@@ -37,3 +37,11 @@ slot0_partition: &cpuapp_slot0_partition {
 slot1_partition: &cpuapp_slot1_partition {
 	label = "image-1";
 };
+
+slot2_partition: &cpurad_slot0_partition {
+	label = "image-2";
+};
+
+slot3_partition: &cpurad_slot1_partition {
+	label = "image-3";
+};

boards/nordic/nrf54h20dk/nrf54h20dk_nrf54h20_cpurad_iron.dts

@@ -20,3 +20,11 @@
 	mbox-names = "tx", "rx";
 	status = "okay";
 };
+
+slot0_partition: &cpurad_slot0_partition {
+	label = "image-0";
+};
+
+slot1_partition: &cpurad_slot1_partition {
+	label = "image-1";
+};

samples/subsys/mgmt/mcumgr/smp_svr/sample.yaml

@@ -230,3 +230,9 @@ tests:
       - nrf5340dk/nrf5340/cpuapp
     integration_platforms:
       - nrf5340dk/nrf5340/cpuapp
+  sample.mcumgr.smp_svr.serial.empty_radio.nrf54h20_iron:
+    extra_args:
+      - EXTRA_CONF_FILE="overlay-serial.conf"
+      - SB_CONFIG_NETCORE_EMPTY=y
+    platform_allow:
+      - nrf54h20dk/nrf54h20/cpuapp/iron