nRF Desktop: application module update after the IronSide SE migration #25461

kapi-no · 2025-11-06T13:08:23Z

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NordicBuilder · 2025-11-06T13:12:58Z

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sdk-nrf: PR head: e3820dba16093236ff768b35884a335157da50d2

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PR head: e3820dba16093236ff768b35884a335157da50d2
merge base: 76044429359d330a97be4dd71c27b06c145b0870
target head (main): 408a35fc93a51f2ad183086703e1e392eac805a5
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List of changed files detected by CI (2)

applications
│  ├── nrf_desktop
│  │  ├── doc
│  │  │  ├── dfu.rst
│  │  │  │ dfu_mcumgr.rst

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github-actions · 2025-11-06T13:52:18Z

You can find the documentation preview for this PR here.

Preview links for modified nRF Connect SDK documents:

https://ncsdoc.z6.web.core.windows.net/PR-25461/nrf/applications/nrf_desktop/doc/dfu.html
https://ncsdoc.z6.web.core.windows.net/PR-25461/nrf/applications/nrf_desktop/doc/dfu_mcumgr.html

divipillai · 2025-11-06T15:22:15Z

applications/nrf_desktop/doc/dfu.rst

+The DFU module is compatible with the memory layout defined using the Partition Manager.
+This partitioning method is used by default for most board targets that are based on the nRF52, nRF53, and nRF54 Series SoCs.
+
+Additionally, the DFU module is compatible with the memory layout defined using the Device Tree Source (DTS) when it is used with the MCUboot bootloader.


Suggested change

Additionally, the DFU module is compatible with the memory layout defined using the Device Tree Source (DTS) when it is used with the MCUboot bootloader.

Additionally, the DFU module is compatible with the memory layout defined using the Devicetree Source (DTS) when you use it with the MCUboot bootloader.

Isn't it Devicetree Specification?

https://docs.zephyrproject.org/latest/build/dts/intro-syntax-structure.html

As the name indicates, a devicetree is a tree. The human-readable text format for this tree is called DTS (for devicetree source), and is defined in the Devicetree specification.

applications/nrf_desktop/doc/dfu_mcumgr.rst

divipillai · 2025-11-06T16:41:52Z

doc/nrf/releases_and_maturity/releases/release-notes-changelog.rst

@@ -313,6 +316,9 @@ nRF Desktop
    * The documentation of the :ref:`nrf_desktop_hid_state` and default HID report providers to simplify getting started with updating HID input reports used by the application or introducing support for a new HID input report.
    * The default value of the :kconfig:option:`CONFIG_SOC_FLASH_NRF_RADIO_SYNC_MPSL_NORMAL_PRIORITY_TIMEOUT_US` Kconfig option to ``0``.
      This is done to start using high MPSL timeslot priority quicker and speed up non-volatile memory operations.
+    * The :ref:`nrf_desktop_dfu` and the :ref:`nrf_desktop_dfu_mcumgr` to handle the ``nrf54h20dk/nrf54h20/cpuapp`` board target with the IronSide SE architecture and the MCUboot bootloader.


Should the doc pages be updated with the IronSide SE details?
We have document about IronSide SE here : https://docs.nordicsemi.com/bundle/ncs-latest/page/nrf/app_dev/device_guides/nrf54h/ug_nrf54h20_ironside.html

I don't think so. This is the documentation of the IronSide component, which we do not change.

I think we should just document the nRF Desktop integration with IronSide (or in other words: how we use IronSide in our application).

divipillai · 2025-11-06T16:44:55Z

doc/nrf/releases_and_maturity/releases/release-notes-changelog.rst

@@ -313,6 +316,9 @@ nRF Desktop
    * The documentation of the :ref:`nrf_desktop_hid_state` and default HID report providers to simplify getting started with updating HID input reports used by the application or introducing support for a new HID input report.
    * The default value of the :kconfig:option:`CONFIG_SOC_FLASH_NRF_RADIO_SYNC_MPSL_NORMAL_PRIORITY_TIMEOUT_US` Kconfig option to ``0``.
      This is done to start using high MPSL timeslot priority quicker and speed up non-volatile memory operations.
+    * The :ref:`nrf_desktop_dfu` and the :ref:`nrf_desktop_dfu_mcumgr` to handle the ``nrf54h20dk/nrf54h20/cpuapp`` board target with the IronSide SE architecture and the MCUboot bootloader.
+
+  * Removed the SUIT support from the :ref:`nrf_desktop_dfu` and the :ref:`nrf_desktop_dfu_mcumgr`.



We have mention about suit in the Board configuration docs here : https://docs.nordicsemi.com/bundle/ncs-latest/page/nrf/applications/nrf_desktop/board_configuration.html#nrf_desktop_board_configuration_files. Could remove those line as well? Also, the note about IronSide SE migration at the end of the page.

This will be done in a follow-up PR. This PR focuses only on the application modules from the nRF Desktop app.

divipillai · 2025-11-06T16:57:23Z

doc/nrf/releases_and_maturity/releases/release-notes-changelog.rst

@@ -313,6 +316,9 @@ nRF Desktop
    * The documentation of the :ref:`nrf_desktop_hid_state` and default HID report providers to simplify getting started with updating HID input reports used by the application or introducing support for a new HID input report.
    * The default value of the :kconfig:option:`CONFIG_SOC_FLASH_NRF_RADIO_SYNC_MPSL_NORMAL_PRIORITY_TIMEOUT_US` Kconfig option to ``0``.
      This is done to start using high MPSL timeslot priority quicker and speed up non-volatile memory operations.
+    * The :ref:`nrf_desktop_dfu` and the :ref:`nrf_desktop_dfu_mcumgr` to handle the ``nrf54h20dk/nrf54h20/cpuapp`` board target with the IronSide SE architecture and the MCUboot bootloader.


There was a plan to update the migration guide as well. Will that be done as part of this PR or a separate PR?

Yes, this PR is one of many for the related JIRA ticket. I plan to contribute the nRF Desktop migration guide at the very end

applications/nrf_desktop/doc/dfu_mcumgr.rst

MarekPieta · 2025-11-07T09:36:20Z

doc/nrf/releases_and_maturity/releases/release-notes-changelog.rst

@@ -313,6 +313,9 @@ nRF Desktop
    * The documentation of the :ref:`nrf_desktop_hid_state` and default HID report providers to simplify getting started with updating HID input reports used by the application or introducing support for a new HID input report.
    * The default value of the :kconfig:option:`CONFIG_SOC_FLASH_NRF_RADIO_SYNC_MPSL_NORMAL_PRIORITY_TIMEOUT_US` Kconfig option to ``0``.
      This is done to start using high MPSL timeslot priority quicker and speed up non-volatile memory operations.
+    * The :ref:`nrf_desktop_dfu_mcumgr` to handle the ``nrf54h20dk/nrf54h20/cpuapp`` board target with the IronSide SE architecture and the MCUboot bootloader.


Maybe we could add one note informing that we added support for the nrf54h20dk/nrf54h20/cpuapp board target with the IronSide SE architecture and the MCUboot bootloader (and SUIT support was removed)? Then we might briefly describe supported features (maybe even as a bullet point sublist)?

We might also add it at the top (to highlight it)

This note will be added together with the update of the board configuration from the nRF Desktop documentation.

Then, I think we could skip adding release notes for now (add add one general note later on). I think it might not be worth to go into details here

No. This PR provides a documentation alignment of the DFU application modules from nRF Desktop. Without changelog entries, this documentation update is incomplete.

As you prefer

applications/nrf_desktop/doc/dfu.rst

kapi-no · 2025-11-25T13:35:27Z

Force push to address the comments

kapi-no · 2025-11-25T14:04:39Z

Force push to rebase and resolve conflicts.

MarekPieta · 2025-11-27T12:58:43Z

applications/nrf_desktop/doc/dfu_mcumgr.rst

 You cannot use this module with the :ref:`caf_ble_smp`.
 In other words, you cannot simultaneously enable the :ref:`CONFIG_DESKTOP_DFU_MCUMGR_ENABLE <config_desktop_app_options>` option and the :kconfig:option:`CONFIG_CAF_BLE_SMP` Kconfig option.

+Currently, this module supports only one bootloader backend, the MCUboot bootloader backend.


I would skip this sentence as it's already part of the note below

MarekPieta · 2025-11-27T12:59:27Z

doc/nrf/releases_and_maturity/releases/release-notes-changelog.rst

@@ -313,6 +313,9 @@ nRF Desktop
    * The documentation of the :ref:`nrf_desktop_hid_state` and default HID report providers to simplify getting started with updating HID input reports used by the application or introducing support for a new HID input report.
    * The default value of the :kconfig:option:`CONFIG_SOC_FLASH_NRF_RADIO_SYNC_MPSL_NORMAL_PRIORITY_TIMEOUT_US` Kconfig option to ``0``.
      This is done to start using high MPSL timeslot priority quicker and speed up non-volatile memory operations.
+    * The :ref:`nrf_desktop_dfu_mcumgr` to handle the ``nrf54h20dk/nrf54h20/cpuapp`` board target with the IronSide SE architecture and the MCUboot bootloader.


Then, I think we could skip adding release notes for now (add add one general note later on). I think it might not be worth to go into details here

applications/nrf_desktop/doc/dfu.rst

kapi-no · 2025-11-28T14:05:44Z

Pure rebase to resolve conflicts.

Updated the DFU MCUmgr application module that is part of the nRF Desktop application to align with the IronSide SE architecture for the nRF54H20 SoC. Ref: NCSDK-35488 Signed-off-by: Kamil Piszczek <[email protected]>

Updated the DFU application module that is part of the nRF Desktop application to align with the IronSide SE architecture for the nRF54H20 SoC. Ref: NCSDK-35488 Signed-off-by: Kamil Piszczek <[email protected]>

kapi-no · 2025-12-01T08:25:24Z

Removing the release notes as the RC1 is already tagged for sdk-nrf.

kapi-no requested review from a team as code owners November 6, 2025 13:08

NordicBuilder added the doc-required PR must not be merged without tech writer approval. label Nov 6, 2025

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kapi-no force-pushed the nrf_desktop_ironside_app_module_update branch from 914a872 to 357eb20 Compare November 6, 2025 13:14

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kapi-no added this to the 3.2.0 milestone Nov 28, 2025

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kapi-no added 2 commits December 1, 2025 09:23

applications: nrf_desktop: doc: dfu_mcumgr: align with IronSide SE

7cd854f

Updated the DFU MCUmgr application module that is part of the nRF Desktop application to align with the IronSide SE architecture for the nRF54H20 SoC. Ref: NCSDK-35488 Signed-off-by: Kamil Piszczek <[email protected]>

applications: nrf_desktop: doc: dfu: align with IronSide SE

e3820db

Updated the DFU application module that is part of the nRF Desktop application to align with the IronSide SE architecture for the nRF54H20 SoC. Ref: NCSDK-35488 Signed-off-by: Kamil Piszczek <[email protected]>

kapi-no force-pushed the nrf_desktop_ironside_app_module_update branch from 19f8014 to e3820db Compare December 1, 2025 08:24

NordicBuilder added the changelog-entry-required Update changelog before merge. Remove label if entry is not needed or already added. label Dec 1, 2025

kapi-no added backport v3.2-branch and removed DNM changelog-entry-required Update changelog before merge. Remove label if entry is not needed or already added. labels Dec 1, 2025

rlubos merged commit de4522a into nrfconnect:main Dec 1, 2025
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NordicBuilder mentioned this pull request Dec 1, 2025

[Backport v3.2-branch] nRF Desktop: application module update after the IronSide SE migration #25917

Merged

	Additionally, the DFU module is compatible with the memory layout defined using the Device Tree Source (DTS) when it is used with the MCUboot bootloader.
	Additionally, the DFU module is compatible with the memory layout defined using the Devicetree Source (DTS) when you use it with the MCUboot bootloader.

nRF Desktop: application module update after the IronSide SE migration #25461

nRF Desktop: application module update after the IronSide SE migration #25461

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