Configure devicetree overlay for mcuboot

RE: Configure devicetree overlay for mcuboot

davidvanrijn — Fri, 08 Mar 2024 10:03:16 GMT

I added that line, because i didn't know how add an overlay file to the mcuboot child image build.

RE: Configure devicetree overlay for mcuboot

Achim Kraus — Fri, 08 Mar 2024 10:02:40 GMT

[quote userid="131938" url="~/f/nordic-q-a/109029/configure-devicetree-overlay-for-mcuboot/472887"]It is worth noting that ncs changes my board from `actinius_icarus_ns` to `actinius_icarus`.[/quote]

Yes, I forgot that. McuBoot is part of the "secure build", while the application is part of the "none secure build".

RE: Configure devicetree overlay for mcuboot

davidvanrijn — Fri, 08 Mar 2024 10:00:15 GMT

Thank Achim,

This worked perfectly. I no have this tree structure in my project:

child_image
└── mcuboot
    ├── boards
    │   └── actinius_icarus.overlay
    └── prj.conf

It is worth noting that ncs changes my board from `actinius_icarus_ns` to `actinius_icarus`.

RE: Configure devicetree overlay for mcuboot

Achim Kraus — Fri, 08 Mar 2024 06:49:03 GMT

At least when you use the current NCS (2.5.2), McuBoot is a "child image". The build of such child images are defined in the project's "child_image" folder (you may need to create one). For McuBoot this is "child_image/mcuboot.conf" and the overlays are in "child_image/mcuboot/boards".

RE: Configure devicetree overlay for mcuboot

frax84 — Thu, 07 Mar 2024 18:45:18 GMT

Maybe there is something I didn't understand...but why you should not use a *.overlay file in your project to add that line you need in the dts without modyfing the ".dtsi?

Example:

https://github.com/nrfconnect/sdk-nrf/blob/main/samples/peripheral/lpuart/debug.overlay

Is there anything I'm missing?