[nrf noup] smp_svr: nrf54h20dk serial sample

Add sample configuration for DFU over UART on
nrf54h20dk_nrf54h20_cpuapp_iron board with MCUBoot
support.

Set as no-upstream beacuse of developmental stage of MCUBoot support
on nrf54h20, in particular main dts file needs adjustments with
simplified SDFW and there is no functional IPC for the moment.

Signed-off-by: Michal Kozikowski <[email protected]>

Author: nordic-mik7

boards/nordic/nrf54h20dk/Kconfig.defconfig

@@ -17,3 +17,10 @@ config MAX_THREAD_BYTES
 	default 3 if USERSPACE
 
 endif # BOARD_NRF54H20DK_NRF54H20_CPURAD
+
+if BOARD_NRF54H20DK_NRF54H20_CPUAPP_IRON
+
+config ROM_START_OFFSET
+	default 0x800 if BOOTLOADER_MCUBOOT
+
+endif # BOARD_NRF54H20DK_NRF54H20_CPUAPP_IRON

samples/subsys/mgmt/mcumgr/smp_svr/boards/nrf54h20dk_nrf54h20_cpuapp_iron.overlay

@@ -0,0 +1,33 @@
+/*
+ * Copyright (c) 2025 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/delete-node/&cpuapp_slot0_partition;
+
+/ {
+	chosen {
+		zephyr,code-partition = &slot0_partition;
+		zephyr,uart-mcumgr = &uart136;
+	};
+ };
+
+&mram1x {
+	cpuapp_rx_partitions: cpuapp-rx-partitions {
+		boot_partition: partition@2c000 {
+			label = "mcuboot";
+			reg = <0x2c000 DT_SIZE_K(64)>;
+		};
+
+		slot0_partition: partition@3c000 {
+			label = "image-0";
+			reg = <0x3c000 DT_SIZE_K(200)>;
+		};
+
+		slot1_partition: partition@6E000 {
+			label = "image-1";
+			reg = <0x6E000 DT_SIZE_K(200)>;
+		};
+	};
+};

samples/subsys/mgmt/mcumgr/smp_svr/prj_nrf54h20.conf

@@ -0,0 +1,50 @@
+# Enable MCUmgr and dependencies.
+CONFIG_NET_BUF=y
+CONFIG_ZCBOR=y
+CONFIG_CRC=y
+CONFIG_MCUMGR=y
+CONFIG_STREAM_FLASH=y
+CONFIG_FLASH_MAP=y
+
+# Some command handlers require a large stack.
+CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=2304
+CONFIG_MAIN_STACK_SIZE=2176
+
+# Ensure an MCUboot-compatible binary is generated.
+CONFIG_BOOTLOADER_MCUBOOT=y
+
+# Enable flash operations.
+CONFIG_FLASH=y
+
+# Required by the `taskstat` command.
+CONFIG_THREAD_MONITOR=y
+
+# Support for taskstat command
+CONFIG_MCUMGR_GRP_OS_TASKSTAT=y
+
+# Enable statistics and statistic names.
+CONFIG_STATS=y
+CONFIG_STATS_NAMES=y
+
+# Enable most core commands.
+CONFIG_FLASH=y
+CONFIG_IMG_MANAGER=y
+CONFIG_MCUMGR_GRP_IMG=y
+CONFIG_MCUMGR_GRP_OS=y
+CONFIG_MCUMGR_GRP_STAT=y
+
+# Enable logging
+CONFIG_LOG=y
+CONFIG_MCUBOOT_UTIL_LOG_LEVEL_WRN=y
+
+# Disable debug logging
+CONFIG_LOG_MAX_LEVEL=3
+
+# Disable GPD because no IPC is enabled in SSDFW
+CONFIG_SOC_NRF54H20_GPD=n
+CONFIG_PM=n
+
+# If cpusec_cpuapp_ipc node is present in dtc, it automatically enables canonical ZCBOR encoding.
+# Canonical ZCBOR encoding needs legacy RC behaviour to work with mcumgr-client and other PC tools.
+# When tools are updated, this can be removed.
+CONFIG_MCUMGR_SMP_LEGACY_RC_BEHAVIOUR=y

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

@@ -225,3 +225,14 @@ tests:
       - nrf5340dk/nrf5340/cpuapp
     integration_platforms:
       - nrf5340dk/nrf5340/cpuapp
+  sample.mcumgr.smp_svr.serial.nrf54h20dk:
+    extra_args:
+      - FILE_SUFFIX=nrf54h20
+      - EXTRA_CONF_FILE="overlay-serial.conf"
+      - SB_CONFIG_PARTITION_MANAGER=n
+      - SB_CONFIG_SUIT_MPI_GENERATE=n
+      - SB_CONFIG_SUIT_ENVELOPE=n
+    platform_allow:
+      - nrf54h20dk/nrf54h20/cpuapp/iron
+    integration_platforms:
+      - nrf54h20dk/nrf54h20/cpuapp/iron

samples/subsys/mgmt/mcumgr/smp_svr/sysbuild/CMakeLists.txt

@@ -4,6 +4,10 @@ if("${FILE_SUFFIX}" STREQUAL "ram_load")
   set(mcuboot_EXTRA_DTC_OVERLAY_FILE "${CMAKE_CURRENT_LIST_DIR}/nrf52840dk_nrf52840_mcuboot_ram_load.overlay" CACHE INTERNAL "" FORCE)
 endif()
 
+if("${FILE_SUFFIX}" STREQUAL "nrf54h20")
+  set(mcuboot_EXTRA_DTC_OVERLAY_FILE "${CMAKE_CURRENT_LIST_DIR}/nrf54h20dk_nrf54h20_mcuboot_cpuapp_iron.overlay" CACHE INTERNAL "" FORCE)
+endif()
+
 find_package(Sysbuild REQUIRED HINTS $ENV{ZEPHYR_BASE})
 
 project(sysbuild LANGUAGES)

samples/subsys/mgmt/mcumgr/smp_svr/sysbuild/nrf54h20dk_nrf54h20_mcuboot_cpuapp_iron.overlay

@@ -0,0 +1,33 @@
+/*
+ * Copyright (c) 2025 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/delete-node/&cpuapp_slot0_partition;
+
+/ {
+	chosen {
+		zephyr,code-partition = &boot_partition;
+		zephyr,uart-mcumgr = &uart136;
+	};
+ };
+
+&mram1x {
+	cpuapp_rx_partitions: cpuapp-rx-partitions {
+		boot_partition: partition@2c000 {
+			label = "mcuboot";
+			reg = <0x2c000 DT_SIZE_K(64)>;
+		};
+
+		slot0_partition: partition@3c000 {
+			label = "image-0";
+			reg = <0x3c000 DT_SIZE_K(200)>;
+		};
+
+		slot1_partition: partition@6E000 {
+			label = "image-1";
+			reg = <0x6E000 DT_SIZE_K(200)>;
+		};
+	};
+};

soc/nordic/nrf54h/Kconfig.soc

@@ -35,6 +35,7 @@ config SOC_NRF54H20_CPUFLPR
 
 config SOC_NRF54H20_IRON
 	bool
+	select EXPERIMENTAL
 	help
 	  Indicates that local domain firmware is compatible with Nordic IRONside SE.