samples: net: Remove PM from networking samples for Wi-Fi targets by PavelVPV · Pull Request #28547 · nrfconnect/sdk-nrf

PavelVPV · 2026-05-05T21:20:17Z

This PR removes Partition Manager from the networking samples on the Wi‑Fi nRF5340, nRF54L15, nRF54LM20 targets, and moves the flash and RAM layout into Devicetree.

Tha code and RAM partitions layout is aligned with Partition Manager layouts.

nRF91 and Thingy91(x) builds are left on Partition Manager.

Jira: NCSDK-39198

NordicBuilder · 2026-05-05T21:23:08Z

CI Information

^{To view the history of this post, click the 'edited' button above}
Build number: 18

Inputs:

Sources:

sdk-nrf: PR head: ca01b417a4c0974a610811d7a2a558a07f2c5671

more details

sdk-nrf:

PR head: ca01b417a4c0974a610811d7a2a558a07f2c5671
merge base: e12234e3cc3199f6643a6b86bec6c17f9bc1a63d
target head (main): d3172ae0e09ddd8dd232e0e0fd74c34d71ac368a
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 (70)

doc
│  ├── nrf
│  │  ├── releases_and_maturity
│  │  │  ├── releases
│  │  │  │  │ release-notes-changelog.rst
samples
│  ├── net
│  │  ├── aws_iot
│  │  │  ├── Kconfig.sysbuild
│  │  │  ├── boards
│  │  │  │  ├── nrf54l15dk_nrf54l15_cpuapp.overlay
│  │  │  │  ├── nrf54lm20dk_nrf54lm20a_cpuapp.overlay
│  │  │  │  ├── nrf54lm20dk_nrf54lm20b_cpuapp.overlay
│  │  │  │  ├── nrf7002dk_nrf5340_cpuapp_ns.conf
│  │  │  │  │ nrf7002dk_nrf5340_cpuapp_ns.overlay
│  │  │  ├── sysbuild
│  │  │  │  ├── mcuboot
│  │  │  │  │  ├── boards
│  │  │  │  │  │  ├── nrf7002dk_nrf5340_cpuapp.conf
│  │  │  │  │  │  │ nrf7002dk_nrf5340_cpuapp.overlay
│  │  ├── azure_iot_hub
│  │  │  ├── Kconfig.sysbuild
│  │  │  ├── boards
│  │  │  │  ├── nrf54lm20dk_nrf54lm20a_cpuapp_ns.conf
│  │  │  │  ├── nrf54lm20dk_nrf54lm20a_cpuapp_ns.overlay
│  │  │  │  ├── nrf54lm20dk_nrf54lm20b_cpuapp_ns.conf
│  │  │  │  ├── nrf54lm20dk_nrf54lm20b_cpuapp_ns.overlay
│  │  │  │  ├── nrf7002dk_nrf5340_cpuapp_ns.conf
│  │  │  │  │ nrf7002dk_nrf5340_cpuapp_ns.overlay
│  │  │  ├── sysbuild
│  │  │  │  ├── mcuboot
│  │  │  │  │  ├── boards
│  │  │  │  │  │  ├── nrf54lm20dk_nrf54lm20a_cpuapp.conf
│  │  │  │  │  │  ├── nrf54lm20dk_nrf54lm20a_cpuapp.overlay
│  │  │  │  │  │  ├── nrf54lm20dk_nrf54lm20b_cpuapp.conf
│  │  │  │  │  │  ├── nrf54lm20dk_nrf54lm20b_cpuapp.overlay
│  │  │  │  │  │  ├── nrf7002dk_nrf5340_cpuapp.conf
│  │  │  │  │  │  │ nrf7002dk_nrf5340_cpuapp.overlay
│  │  ├── coap_client
│  │  │  ├── Kconfig.sysbuild
│  │  │  ├── boards
│  │  │  │  ├── nrf5340dk_nrf5340_cpuapp_ns.conf
│  │  │  │  ├── nrf5340dk_nrf5340_cpuapp_ns.overlay
│  │  │  │  ├── nrf54l15dk_nrf54l15_cpuapp.overlay
│  │  │  │  ├── nrf54lm20dk_nrf54lm20a_cpuapp.overlay
│  │  │  │  ├── nrf54lm20dk_nrf54lm20b_cpuapp.overlay
│  │  │  │  ├── nrf7002dk_nrf5340_cpuapp_ns.conf
│  │  │  │  │ nrf7002dk_nrf5340_cpuapp_ns.overlay
│  │  ├── download
│  │  │  ├── Kconfig.sysbuild
│  │  │  ├── boards
│  │  │  │  ├── nrf5340dk_nrf5340_cpuapp_ns.conf
│  │  │  │  ├── nrf5340dk_nrf5340_cpuapp_ns.overlay
│  │  │  │  ├── nrf54l15dk_nrf54l15_cpuapp.overlay
│  │  │  │  ├── nrf54lm20dk_nrf54lm20a_cpuapp.overlay
│  │  │  │  ├── nrf54lm20dk_nrf54lm20b_cpuapp.overlay
│  │  │  │  ├── nrf7002dk_nrf5340_cpuapp_ns.conf
│  │  │  │  │ nrf7002dk_nrf5340_cpuapp_ns.overlay
│  │  ├── http_server
│  │  │  ├── Kconfig.sysbuild
│  │  │  ├── boards
│  │  │  │  ├── nrf5340dk_nrf5340_cpuapp_ns.conf
│  │  │  │  ├── nrf5340dk_nrf5340_cpuapp_ns.overlay
│  │  │  │  ├── nrf54l15dk_nrf54l15_cpuapp.overlay
│  │  │  │  ├── nrf54lm20dk_nrf54lm20a_cpuapp.overlay
│  │  │  │  ├── nrf54lm20dk_nrf54lm20b_cpuapp.overlay
│  │  │  │  ├── nrf7002dk_nrf5340_cpuapp_ns.conf
│  │  │  │  │ nrf7002dk_nrf5340_cpuapp_ns.overlay
│  │  ├── https_client
│  │  │  ├── Kconfig.sysbuild
│  │  │  ├── boards
│  │  │  │  ├── nrf5340dk_nrf5340_cpuapp_ns.conf
│  │  │  │  ├── nrf5340dk_nrf5340_cpuapp_ns.overlay
│  │  │  │  ├── nrf54l15dk_nrf54l15_cpuapp.overlay
│  │  │  │  ├── nrf54lm20dk_nrf54lm20a_cpuapp.overlay
│  │  │  │  ├── nrf54lm20dk_nrf54lm20b_cpuapp.overlay
│  │  │  │  ├── nrf7002dk_nrf5340_cpuapp_ns.conf
│  │  │  │  │ nrf7002dk_nrf5340_cpuapp_ns.overlay
│  │  ├── mqtt
│  │  │  ├── Kconfig.sysbuild
│  │  │  ├── boards
│  │  │  │  ├── nrf5340dk_nrf5340_cpuapp_ns.conf
│  │  │  │  ├── nrf5340dk_nrf5340_cpuapp_ns.overlay
│  │  │  │  ├── nrf54l15dk_nrf54l15_cpuapp.overlay
│  │  │  │  ├── nrf54lm20dk_nrf54lm20a_cpuapp.overlay
│  │  │  │  ├── nrf54lm20dk_nrf54lm20b_cpuapp.overlay
│  │  │  │  ├── nrf7002dk_nrf5340_cpuapp_ns.conf
│  │  │  │  │ nrf7002dk_nrf5340_cpuapp_ns.overlay
│  │  ├── udp
│  │  │  ├── Kconfig.sysbuild
│  │  │  ├── boards
│  │  │  │  ├── nrf5340dk_nrf5340_cpuapp_ns.conf
│  │  │  │  ├── nrf5340dk_nrf5340_cpuapp_ns.overlay
│  │  │  │  ├── nrf54l15dk_nrf54l15_cpuapp.overlay
│  │  │  │  ├── nrf54lm20dk_nrf54lm20a_cpuapp.overlay
│  │  │  │  ├── nrf54lm20dk_nrf54lm20b_cpuapp.overlay
│  │  │  │  ├── nrf7002dk_nrf5340_cpuapp_ns.conf
│  │  │  │  │ nrf7002dk_nrf5340_cpuapp_ns.overlay

Outputs:

Toolchain

Version: f0aa129f09
Build docker image: docker-dtr.nordicsemi.no/sw-production/ncs-build:f0aa129f09_5ea73affbf

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

◻️ Toolchain - Skipped: existing toolchain is used
✅ Build twister
- sdk-nrf test count: 107
✅ Integration tests
- ✅ test-fw-nrfconnect-nrf-iot_samples
- ✅ test-fw-nrfconnect-nrf-iot_thingy91

Disabled integration tests

- test-fw-nrfconnect-nrf_lrcs_mosh
- test-fw-nrfconnect-nrf_lrcs_positioning
- desktop52_verification
- test_ble_nrf_config
- test-fw-nrfconnect-apps
- test-fw-nrfconnect-apps_nrfdesktop
- test-fw-nrfconnect-ble_mesh
- test-fw-nrfconnect-ble_samples
- test-fw-nrfconnect-chip
- test-fw-nrfconnect-fem
- test-fw-nrfconnect-nfc
- test-fw-nrfconnect-nrf-iot_libmodem-nrf
- test-fw-nrfconnect-nrf-iot_lwm2m
- test-fw-nrfconnect-nrf-iot_zephyr_lwm2m
- test-fw-nrfconnect-nrf_crypto
- test-fw-nrfconnect-ps-main
- test-fw-nrfconnect-rpc
- test-fw-nrfconnect-rs
- test-fw-nrfconnect-tfm
- test-fw-nrfconnect-thread-main
- test-low-level
- test-sdk-audio
- test-sdk-dfu
- test-sdk-find-my
- test-sdk-mcuboot
- test-sdk-wifi
- test-secdom-samples-public

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

github-actions · 2026-05-05T21:57:52Z

You can find the documentation preview for this PR here.

Preview links for modified nRF Connect SDK documents:

https://ncsbmdoc.z6.web.core.windows.net/ncs/PR-28547/nrf/releases_and_maturity/releases/release-notes-changelog.html

PavelVPV · 2026-05-13T12:51:20Z

All samples start (including nRF54LM after nrfconnect/sdk-zephyr#4042): net_wifi_hw.log. Wi-Fi transport failures are because I don't have this variant on my desk, though if it is starts, then partitions layout is correct.

peknis · 2026-05-13T12:59:15Z

 Networking samples
 ------------------

+* :ref:`mqtt_sample` sample:


Maybe something like:

Removed Partition Manager for all Wi-Fi targets from the following samples:

:ref:mqtt_sample

...

And at the end of the list: Flash and SRAM partitions are supplied using the device tree overlays.

nordicjm

apply comments throughout whole PR (they have been pointed out once only)

nordicjm · 2026-05-14T11:52:48Z

+# CONFIG_SRAM_BASE_ADDRESS / CONFIG_SRAM_SIZE override the Zephyr defaults so the
+# NS application linker map matches this sample's board *.overlay (chosen zephyr,sram
+# resolves to &sram0_ns_app). TF-M occupies the low 48 KiB (0xc000) of cpuapp SRAM; the NS
+# image therefore starts at 0x20000000 + 0xc000 == 0x2000c000. CONFIG_SRAM_SIZE is in kB
+# (see arch/Kconfig): 400 = 0x64000 bytes, the reg size of sram0_ns_app in the overlay.
+# The NS window (&sram0_ns) spans 0x74000; the top 0x10000 (64 KiB) is sram0_shared for
+# application/network-core IPC (nrf5340_shared_sram_partition.dtsi), so 0x64000 + 0x10000 == 0x74000.
+CONFIG_SRAM_BASE_ADDRESS=0x2000c000
+CONFIG_SRAM_SIZE=400


these Kconfigs should absolutely not be used, change the dts node

nordicjm · 2026-05-14T11:53:26Z

+		#address-cells = <1>;
+		#size-cells = <1>;
+


Suggested change

#address-cells = <1>;

#size-cells = <1>;

If I understand your comment correctly, this is added by pm_to_dts.py script. This should be fixed this in the script first:

sdk-nrf/scripts/pm_to_dts.py

Lines 297 to 298 in b6b0de2

write_and_print(f, f'{indent}\t#address-cells = <1>;\n')

write_and_print(f, f'{indent}\t#size-cells = <1>;\n\n')

Same for #28547 (comment)

nordicjm · 2026-05-14T11:53:49Z

 	reg = <0x0 DT_SIZE_K(1524)>;
+


Suggested change

reg = <0x0 DT_SIZE_K(1524)>;

This is needed because FLPR memory is dropped.

what flpr memory?

https://github.com/PavelVPV/sdk-nrf/blob/424f81e2d5c95fd73e6c98e7d21e768daefd3470/samples/net/coap_client/boards/nrf54l15dk_nrf54l15_cpuapp.overlay#L12-L15

why are you deleting nodes that do not exist? I suggest you configure hello world for nrf54l15dk/nrf54l15/cpuapp and look at the generated zephyr.dts file to compare against

I'm not deleting them, they were before my PR, please look at main branch:

sdk-nrf/samples/net/coap_client/boards/nrf54l15dk_nrf54l15_cpuapp.overlay

Lines 7 to 21 in 5db9316

&rram_controller {

/delete-node/ cpuflpr_sram;

/delete-node/ cpuflpr_rram;

};

/* Adjust the cpuapp_sram to include the freed up cpuflpr_sram */

&cpuapp_sram {

reg = <0x20000000 DT_SIZE_K(256)>;

ranges = <0x0 0x20000000 0x20040000>;

};

/* Adjust the cpuapp_rram to include the freed up cpuflpr_rram */

&cpuapp_rram {

reg = <0x0 DT_SIZE_K(1524)>;

};

Since this change was here before, I will not address this comment in this PR.

this should have been removed as part of the upmerge, so it was wrong then, why was it not addressed at the time and why has it still not been addressed now? Deleting a node that does not exist is invalid, @kylebonnici

Removed just to move this forward

nordicjm · 2026-05-19T07:10:03Z

+
+	partitions {
+		compatible = "fixed-partitions";
+		ranges;


Suggested change

ranges;

nordicjm · 2026-05-19T07:10:19Z

+
+	partitions {
+		compatible = "fixed-partitions";
+		ranges;


Suggested change

ranges;

nordicjm · 2026-05-19T07:10:39Z

+
+	partitions {
+		compatible = "fixed-partitions";
+		ranges;


Suggested change

ranges;

fix in whole PR, fixed-partitions does not use ranges, mapped partitions do

Set PARTITION_MANAGER default to n in Kconfig.sysbuild. Add board overlays with mapped partitions and SRAM sizing for nrf5340dk/nrf7002 NS, nRF54L15, nRF54LM20 A/B (cpuapp), and nrf7002dk NS so builds match the former PM layout without generated partitions.yml. Remove CONFIG_PM_PARTITION_SIZE_TFM* from NS board .conf files and set CONFIG_SRAM_BASE_ADDRESS / CONFIG_SRAM_SIZE from the overlay. Document in the NCS release changelog. Co-authored-by: Cursor <cursoragent@cursor.com> Signed-off-by: Pavel Vasilyev <pavel.vasilyev@nordicsemi.no>

Default PARTITION_MANAGER off in sysbuild; nrf5340dk + nrf7002 NS overlays, nRF54L15 and nRF54LM20 A/B cpuapp overlays, nrf7002dk NS overlay and .conf cleanup (drop PM TF-M size Kconfigs, SRAM from DTS). Changelog entry. Co-authored-by: Cursor <cursoragent@cursor.com> Signed-off-by: Pavel Vasilyev <pavel.vasilyev@nordicsemi.no>

Disable sysbuild PM by default; add static partition and SRAM overlays for nrf5340dk/nrf7002 NS, nRF54L15, nRF54LM20 A/B, and nrf7002dk NS; align NS .conf with overlay-based TF-M SRAM. Changelog entry. Co-authored-by: Cursor <cursoragent@cursor.com> Signed-off-by: Pavel Vasilyev <pavel.vasilyev@nordicsemi.no>

Kconfig.sysbuild PM default n; board overlays for nrf5340dk/nrf7002 NS, nRF54L15, nRF54LM20 A/B, nrf7002dk NS; remove redundant CONFIG_PM_* TF-M partition lines from NS .conf and set SRAM layout from DTS. Changelog entry. Co-authored-by: Cursor <cursoragent@cursor.com> Signed-off-by: Pavel Vasilyev <pavel.vasilyev@nordicsemi.no>

Kconfig.sysbuild PM default n; static flash/SRAM overlays for nrf5340dk/nrf7002 NS, nRF54L15, nRF54LM20 A/B, nrf7002dk NS; NS .conf aligned with overlays. Changelog entry. Co-authored-by: Cursor <cursoragent@cursor.com> Signed-off-by: Pavel Vasilyev <pavel.vasilyev@nordicsemi.no>

Kconfig.sysbuild PM default n; overlays for nrf5340dk/nrf7002 NS, nRF54L15, nRF54LM20 A/B, nrf7002dk NS; drop PM TF-M size Kconfigs from NS .conf in favour of DTS. Changelog entry. Co-authored-by: Cursor <cursoragent@cursor.com> Signed-off-by: Pavel Vasilyev <pavel.vasilyev@nordicsemi.no>

Kconfig.sysbuild PM default n; nrf7002dk NS overlay and .conf for DTS-based TF-M partitions and SRAM; nRF54L15 and nRF54LM20 A/B cpuapp overlays; adjust sysbuild MCUboot image Kconfig and add nrf7002dk MCUboot overlay for the PM-disabled flash map. Changelog entry. Co-authored-by: Cursor <cursoragent@cursor.com> Signed-off-by: Pavel Vasilyev <pavel.vasilyev@nordicsemi.no>

Kconfig.sysbuild PM default n. nrf7002dk NS overlay and .conf for static partitions and SRAM; nrf54lm20dk A/B NS overlays (image-1 on external flash, image-0 on RRAM) and drop redundant NS .conf lines; nrf7002dk and nrf54lm20dk MCUboot board snippets for external flash / partition alignment. Changelog entry. Co-authored-by: Cursor <cursoragent@cursor.com> Signed-off-by: Pavel Vasilyev <pavel.vasilyev@nordicsemi.no>

Add a note about Partition Manager removal in networking samples for Wi-Fi targets. Signed-off-by: Pavel Vasilyev <pavel.vasilyev@nordicsemi.no>

This commit removes the unnecessary FLPR core memory removal from nRF54L15DK overlays since FLPR core is not included. Signed-off-by: Pavel Vasilyev <pavel.vasilyev@nordicsemi.no>

PavelVPV · 2026-05-19T07:30:08Z

@nrfconnect/ncs-cia please have a look

NordicBuilder added doc-required PR must not be merged without tech writer approval. changelog labels May 5, 2026

nordicjm requested changes May 6, 2026

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Comment thread samples/net/aws_iot/boards/nrf7002dk_nrf5340_cpuapp_ns.overlay

PavelVPV force-pushed the remove_pm_from_networking_samples branch 8 times, most recently from 7b27054 to 49decd8 Compare May 11, 2026 14:26

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PavelVPV marked this pull request as ready for review May 13, 2026 12:49

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PavelVPV force-pushed the remove_pm_from_networking_samples branch 2 times, most recently from c4b4cab to 17d2865 Compare May 13, 2026 13:11

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Comment thread doc/nrf/releases_and_maturity/releases/release-notes-changelog.rst Outdated

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PavelVPV and others added 10 commits May 19, 2026 09:18

release-notes: Add note about PM removal for Wi-Fi net samples

7d59d19

Add a note about Partition Manager removal in networking samples for Wi-Fi targets. Signed-off-by: Pavel Vasilyev <pavel.vasilyev@nordicsemi.no>

samples: net: Remove unneeded FLPR memory removal from nRF54L15 target

ca01b41

This commit removes the unnecessary FLPR core memory removal from nRF54L15DK overlays since FLPR core is not included. Signed-off-by: Pavel Vasilyev <pavel.vasilyev@nordicsemi.no>

PavelVPV force-pushed the remove_pm_from_networking_samples branch from 36f5d9e to ca01b41 Compare May 19, 2026 07:18

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ioannisg approved these changes May 19, 2026

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rlubos merged commit c63ff01 into nrfconnect:main May 19, 2026
21 checks passed

	write_and_print(f, f'{indent}\t#address-cells = <1>;\n')
	write_and_print(f, f'{indent}\t#size-cells = <1>;\n\n')

	&rram_controller {
	/delete-node/ cpuflpr_sram;
	/delete-node/ cpuflpr_rram;
	};

	/* Adjust the cpuapp_sram to include the freed up cpuflpr_sram */
	&cpuapp_sram {
	reg = <0x20000000 DT_SIZE_K(256)>;
	ranges = <0x0 0x20000000 0x20040000>;
	};

	/* Adjust the cpuapp_rram to include the freed up cpuflpr_rram */
	&cpuapp_rram {
	reg = <0x0 DT_SIZE_K(1524)>;
	};

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Toolchain

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

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