samples: mcuboot: Add firmware loader entrance sample #23318

nordicjm · 2025-07-16T08:15:29Z

Adds a sample showing how to reboot into MCUboot's firmware loader
application for being able to load firmware updates

NCSDK-28480

NordicBuilder · 2025-07-16T08:25:19Z

CI Information

^{To view the history of this post, clich the 'edited' button above}
Build number: 9

Inputs:

Sources:

sdk-nrf: PR head: 832a7e42065b24e20ae3e3631e8e3e26773fdb93
zephyr: PR head: 587776675ddc6fbfe97e36eb5177130e38c826a0

more details

sdk-nrf:

PR head: 832a7e42065b24e20ae3e3631e8e3e26773fdb93
merge base: 742086a5eda26527d427b1e3bd7a5dda6ed123c4
target head (main): 17d5cdb350e896318120fb48f97c174985b06829
Diff

zephyr:

PR head: 587776675ddc6fbfe97e36eb5177130e38c826a0
merge base: 237ef2e9225a5130047a24f368650c279b676f0b
Diff

Github labels

Enabled	Name	Description
	ci-disabled	Disable the ci execution
	ci-all-test	Run all of ci, no test spec filtering will be done
	ci-force-downstream	Force execution of downstream even if twister fails
	ci-run-twister	Force run twister
	ci-run-zephyr-twister	Force run zephyr twister

List of changed files detected by CI (16)

CODEOWNERS
boards
│  ├── shields
│  │  ├── pca63565
│  │  │  ├── boards
│  │  │  │  │ nrf54l15dk_nrf54l15_cpuapp.overlay
cmake
│  ├── sysbuild
│  │  │ image_signing_firmware_loader.cmake
samples
│  ├── mcuboot
│  │  ├── firmware_loader_entrance
│  │  │  ├── CMakeLists.txt
│  │  │  ├── pm_static_nrf52840dk_nrf52840.yml
│  │  │  ├── pm_static_nrf54l15dk_nrf54l15_cpuapp.yml
│  │  │  ├── prj.conf
│  │  │  ├── sample.yaml
│  │  │  ├── src
│  │  │  │  │ main.c
│  │  │  ├── sysbuild.conf
│  │  │  ├── sysbuild
│  │  │  │  │ mcuboot.conf
sysbuild
│  ├── CMakeLists.txt
│  ├── Kconfig.firmware_loader
│  │ Kconfig.sysbuild
west.yml
zephyr
│  ├── boards
│  │  ├── nordic
│  │  │  ├── nrf54l15dk
│  │  │  │  │ nrf54l_05_10_15_cpuapp_common.dtsi

Outputs:

Toolchain

Version: 684b32e022
Build docker image: docker-dtr.nordicsemi.no/sw-production/ncs-build:684b32e022_bba2ea5f2e

Test Spec & Results: ✅ Success; ❌ Failure; 🟠 Queued; 🟡 Progress; ◻️ Skipped; ⚠️ Quarantine

◻️ Toolchain - Skipped: existing toolchain is used
✅ Build twister - Skipped: Skipping Build & Test as it succeeded in a previous run: 8
✅ Integration tests
- ✅ test-sdk-audio - Skipped: Job was skipped as it succeeded in a previous run
- ✅ desktop52_verification - Skipped: Job was skipped as it succeeded in a previous run
- ✅ test-fw-nrfconnect-apps - Skipped: Job was skipped as it succeeded in a previous run
- ✅ test_ble_nrf_config - Skipped: Job was skipped as it succeeded in a previous run
- ✅ test-fw-nrfconnect-ble_mesh - Skipped: Job was skipped as it succeeded in a previous run
- ✅ test-fw-nrfconnect-ble_samples - Skipped: Job was skipped as it succeeded in a previous run
- ✅ test-fw-nrfconnect-chip - Skipped: Job was skipped as it succeeded in a previous run
- ✅ test-fw-nrfconnect-nfc - Skipped: Job was skipped as it succeeded in a previous run
- ✅ test-fw-nrfconnect-nrf-iot_cloud - Skipped: Job was skipped as it succeeded in a previous run
- ✅ test-fw-nrfconnect-nrf-iot_libmodem-nrf - Skipped: Job was skipped as it succeeded in a previous run
- ✅ test-fw-nrfconnect-nrf-iot_serial_lte_modem - Skipped: Job was skipped as it succeeded in a previous run
- ✅ test-fw-nrfconnect-nrf-iot_zephyr_lwm2m - Skipped: Job was skipped as it succeeded in a previous run
- ✅ test-fw-nrfconnect-nrf-iot_samples - Skipped: Job was skipped as it succeeded in a previous run
- ✅ test-fw-nrfconnect-nrf-iot_lwm2m - Skipped: Job was skipped as it succeeded in a previous run
- ✅ doc-internal - Skipped: Job was skipped as it succeeded in a previous run
- ✅ test-fw-nrfconnect-nrf-iot_thingy91 - Skipped: Job was skipped as it succeeded in a previous run
- ✅ test-fw-nrfconnect-nrf_crypto - Skipped: Job was skipped as it succeeded in a previous run
- ✅ test-fw-nrfconnect-rpc - Skipped: Job was skipped as it succeeded in a previous run
- ✅ test-fw-nrfconnect-rs - Skipped: Job was skipped as it succeeded in a previous run
- ✅ test-fw-nrfconnect-fem - Skipped: Job was skipped as it succeeded in a previous run
- ✅ test-fw-nrfconnect-tfm - Skipped: Job was skipped as it succeeded in a previous run
- ✅ test-fw-nrfconnect-thread-main - Skipped: Job was skipped as it succeeded in a previous run
- ✅ test-sdk-find-my - Skipped: Job was skipped as it succeeded in a previous run
- ✅ test-fw-nrfconnect-nrf_lrcs_mosh - Skipped: Job was skipped as it succeeded in a previous run
- ✅ test-fw-nrfconnect-nrf_lrcs_positioning - Skipped: Job was skipped as it succeeded in a previous run
- ✅ test-sdk-wifi - Skipped: Job was skipped as it succeeded in a previous run
- ✅ test-low-level - Skipped: Job was skipped as it succeeded in a previous run
- ✅ test-sdk-pmic-samples - Skipped: Job was skipped as it succeeded in a previous run
- ✅ test-sdk-mcuboot - Skipped: Job was skipped as it succeeded in a previous run
- ✅ test-fw-nrfconnect-ps-main - Skipped: Job was skipped as it succeeded in a previous run
- ✅ test-secdom-samples-public - Skipped: Job was skipped as it succeeded in a previous run

Note: This message is automatically posted and updated by the CI

github-actions · 2025-07-16T08:49:17Z

You can find the documentation preview for this PR here.

NordicBuilder · 2025-07-16T09:29:44Z

The following west manifest projects have changed revision in this Pull Request:

Name	Old Revision	New Revision	Diff
zephyr	nrfconnect/sdk-zephyr@`237ef2e`	nrfconnect/sdk-zephyr@`5877766` (`main`)	nrfconnect/[email protected]

✅ All manifest checks OK

Note: This message is automatically posted and updated by the Manifest GitHub Action.

NordicBuilder · 2025-07-17T14:06:41Z

Memory footprint analysis revealed the following potential issues

applications.hpf.gpio.icbmsg[nrf54l15dk/nrf54l15/cpuflpr]: High RAM usage: 12430[B] - link (cc: @nrfconnect/ncs-ll-ursus)
applications.hpf.gpio.icbmsg[nrf54l15dk/nrf54l15/cpuflpr]: High ROM usage: 9178[B] - link (cc: @nrfconnect/ncs-ll-ursus)
applications.hpf.gpio.icmsg[nrf54l15dk/nrf54l15/cpuflpr]: High RAM usage: 9090[B] - link (cc: @nrfconnect/ncs-ll-ursus)
applications.hpf.gpio.icmsg[nrf54l15dk/nrf54l15/cpuflpr]: High ROM usage: 5846[B] - link (cc: @nrfconnect/ncs-ll-ursus)

Note: This message is automatically posted and updated by the CI (latest/sdk-nrf/PR-23318/8)

Adds support for using SHA512 hashes when signing firmware loader images Signed-off-by: Jamie McCrae <[email protected]>

Includes a fix for missing aliases for nrf54l15dk Signed-off-by: Jamie McCrae <[email protected]>

Fixes an issue with this shield Signed-off-by: Jamie McCrae <[email protected]>

hellesvik-nordic

I did not review over the code itself.
Instead, I used what we can call "the lazy user test", where I just run the example soely based on my expectations, to see if it works out of the box.
This worked well, so I approve this PR.
Still, I added two comments for things I think can be improved.

hellesvik-nordic · 2025-07-18T10:26:50Z

samples/mcuboot/firmware_loader_entrance/src/main.c

+
+	k_work_init(&adv_work, adv_work_handler);
+	advertising_start();
+


I suggest that main prints out something along the lines of "Reset the device while holding Button 0/1 to enter DFU mode", so users understand how to enter firmware loader mode.

hellesvik-nordic · 2025-07-18T10:27:57Z

samples/mcuboot/firmware_loader_entrance/pm_static_nrf54l15dk_nrf54l15_cpuapp.yml

+  size: 0x60000
+  span: *id002
+mcuboot_secondary:
+  address: 0x6a800


I might misunderstand the point of the Firmware Loader, but:
One of the main advantages of having two different images is that we can save space.
If this is the case, the example should showcase a smaller secondary slot than primary slot.

actually it's a very good point. Actually there is only primary and firmware loader partition used as bootable images.

sysbuild/Kconfig.sysbuild

samples/mcuboot/firmware_loader_entrance/prj.conf

samples/mcuboot/firmware_loader_entrance/pm_static_nrf54l15dk_nrf54l15_cpuapp.yml

samples/mcuboot/firmware_loader_entrance/sample.yaml

Adds support for picking this image as a firmware loader image Signed-off-by: Jamie McCrae <[email protected]>

Adds a sample showing how to reboot into MCUboot's firmware loader application for being able to load firmware updates Signed-off-by: Jamie McCrae <[email protected]>

Assigns this to pluto Signed-off-by: Jamie McCrae <[email protected]>

bjarki-andreasen

Looks good, but README is certainly missing :)

nvlsianpu

I think Sigurd have good point on pm_static* which should show that primary partition is "big one". Also I'm not sure, but maybe secondary partition can be removed.

Already clarified: README is planed to be added in the subsequent patch.

samples/mcuboot/firmware_loader_entrance/sample.yaml

nordicjm requested review from a team as code owners July 16, 2025 08:15

github-actions bot added the changelog-entry-required Update changelog before merge. Remove label if entry is not needed or already added. label Jul 16, 2025

nordicjm force-pushed the fwldrent7pence branch from fcdfce5 to 2470467 Compare July 16, 2025 08:20

github-actions bot removed the changelog-entry-required Update changelog before merge. Remove label if entry is not needed or already added. label Jul 16, 2025

nordicjm force-pushed the fwldrent7pence branch from 2470467 to 627f961 Compare July 16, 2025 09:28

nordicjm requested a review from a team as a code owner July 16, 2025 09:28

github-actions bot added the manifest label Jul 16, 2025

NordicBuilder added manifest-zephyr DNM labels Jul 16, 2025

nordicjm force-pushed the fwldrent7pence branch 2 times, most recently from 1560707 to c367787 Compare July 17, 2025 12:37

nordicjm added 3 commits July 18, 2025 09:24

sysbuild: Add nrf54l15 SHA512 support for firmware loader

5c472ab

Adds support for using SHA512 hashes when signing firmware loader images Signed-off-by: Jamie McCrae <[email protected]>

manifest: Update sdk-zephyr

f04c408

Includes a fix for missing aliases for nrf54l15dk Signed-off-by: Jamie McCrae <[email protected]>

boards: shields: pca63565: Delete additional aliases

e4cfe13

Fixes an issue with this shield Signed-off-by: Jamie McCrae <[email protected]>

nordicjm force-pushed the fwldrent7pence branch from c367787 to 560b280 Compare July 18, 2025 08:25

nordicjm requested review from nvlsianpu, rlubos, de-nordic, bjarki-andreasen, gchwier and michalek-no July 18, 2025 08:25

NordicBuilder removed the DNM label Jul 18, 2025

michalek-no approved these changes Jul 18, 2025

View reviewed changes

nvlsianpu requested review from nordic-mik7 and tomchy July 18, 2025 10:00

nvlsianpu requested a review from hellesvik-nordic July 18, 2025 10:00

hellesvik-nordic approved these changes Jul 18, 2025

View reviewed changes

tomchy requested changes Jul 18, 2025

View reviewed changes

nordicjm added 3 commits July 18, 2025 11:56

sysbuild: Add firmware loader smp_svr_mini_boot image support

9c61cd0

Adds support for picking this image as a firmware loader image Signed-off-by: Jamie McCrae <[email protected]>

samples: mcuboot: Add firmware loader entrance sample

02be92f

Adds a sample showing how to reboot into MCUboot's firmware loader application for being able to load firmware updates Signed-off-by: Jamie McCrae <[email protected]>

codeowners: Add entry for MCUboot samples

832a7e4

Assigns this to pluto Signed-off-by: Jamie McCrae <[email protected]>

nordicjm force-pushed the fwldrent7pence branch from 560b280 to 832a7e4 Compare July 18, 2025 10:56

bjarki-andreasen approved these changes Jul 18, 2025

View reviewed changes

nvlsianpu reviewed Jul 18, 2025

View reviewed changes

tomchy approved these changes Jul 18, 2025

View reviewed changes

rlubos merged commit 696621a into nrfconnect:main Jul 18, 2025
13 checks passed

gchwier reviewed Jul 21, 2025

View reviewed changes

samples/mcuboot/firmware_loader_entrance/sample.yaml Show resolved Hide resolved

samples/mcuboot/firmware_loader_entrance/sample.yaml Show resolved Hide resolved

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

Uh oh!

samples: mcuboot: Add firmware loader entrance sample #23318

samples: mcuboot: Add firmware loader entrance sample #23318

Uh oh!

nordicjm commented Jul 16, 2025

Uh oh!

NordicBuilder commented Jul 16, 2025 •

edited

Loading

Uh oh!

github-actions bot commented Jul 16, 2025

Uh oh!

NordicBuilder commented Jul 16, 2025 •

edited

Loading

Uh oh!

NordicBuilder commented Jul 17, 2025 •

edited

Loading

Uh oh!

hellesvik-nordic left a comment

Uh oh!

hellesvik-nordic Jul 18, 2025

Uh oh!

hellesvik-nordic Jul 18, 2025

Uh oh!

nvlsianpu Jul 18, 2025

Uh oh!

Uh oh!

Uh oh!

Uh oh!

Uh oh!

bjarki-andreasen left a comment

Uh oh!

nvlsianpu left a comment

Uh oh!

Uh oh!

Uh oh!

Uh oh!

Uh oh!


		k_work_init(&adv_work, adv_work_handler);
		advertising_start();

samples: mcuboot: Add firmware loader entrance sample #23318

samples: mcuboot: Add firmware loader entrance sample #23318

Uh oh!

Conversation

nordicjm commented Jul 16, 2025

Uh oh!

NordicBuilder commented Jul 16, 2025 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

CI Information

Inputs:

Sources:

Github labels

Outputs:

Toolchain

Test Spec & Results: ✅ Success; ❌ Failure; 🟠 Queued; 🟡 Progress; ◻️ Skipped; ⚠️ Quarantine

Uh oh!

github-actions bot commented Jul 16, 2025

Uh oh!

NordicBuilder commented Jul 16, 2025 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Uh oh!

NordicBuilder commented Jul 17, 2025 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Memory footprint analysis revealed the following potential issues

Uh oh!

hellesvik-nordic left a comment

Choose a reason for hiding this comment

Uh oh!

hellesvik-nordic Jul 18, 2025

Choose a reason for hiding this comment

Uh oh!

hellesvik-nordic Jul 18, 2025

Choose a reason for hiding this comment

Uh oh!

nvlsianpu Jul 18, 2025

Choose a reason for hiding this comment

Uh oh!

Uh oh!

Uh oh!

Uh oh!

Uh oh!

bjarki-andreasen left a comment

Choose a reason for hiding this comment

Uh oh!

nvlsianpu left a comment

Choose a reason for hiding this comment

Uh oh!

Uh oh!

Uh oh!

Uh oh!

Uh oh!

NordicBuilder commented Jul 16, 2025 •

edited

Loading

NordicBuilder commented Jul 16, 2025 •

edited

Loading

NordicBuilder commented Jul 17, 2025 •

edited

Loading