soc: nrf54l: Change logic for KMU reserved area

[Vge0rge]

nrf-squash! [nrf noup] soc: nrf54l: Add custom section for KMU

Change how the KMU reserved area is included in the linker file. Now there is a separate Kconfig which shows it the there is a dts entry for the KMU
reserved area.

[nordicjm]

this is referencing a Kconfig that does not exist in this repo, it exists in the sdk-nrf repo, would be better if it was defined in this repo but not a blocker issue since Kconfig checks are not performed here

[Vge0rge]

It is true but at the moment that is not possible. This already referenced an out of tree Kconfig (namely CONFIG_PSA_NEED_CRACEN_KMU_DRIVER). But to be honest that is not a big issue anyway, I will create a task to remove this linker integration all together and handle everything in dts.

[tomi-font]

Not possible to check the DT node directly rather than making a Kconfig option for it in sdk-nrf?

[Vge0rge]

Not possible to check the DT node directly rather than making a Kconfig option for it in sdk-nrf?

I am not aware of any way to do that no. I searched a bit on the net and asked the AI gods but they cannot figure out this riddle either.

[nordicjm]

Not possible to check the DT node directly rather than making a Kconfig option for it in sdk-nrf?

I am not aware of any way to do that no. I searched a bit on the net and asked the AI gods but they cannot figure out this riddle either.

what are you trying to do?

[Vge0rge]

Not possible to check the DT node directly rather than making a Kconfig option for it in sdk-nrf?

I am not aware of any way to do that no. I searched a bit on the net and asked the AI gods but they cannot figure out this riddle either.

what are you trying to do?

In essence I am trying to access DTS information in cmake.

[nordicjm]

Not possible to check the DT node directly rather than making a Kconfig option for it in sdk-nrf?

I am not aware of any way to do that no. I searched a bit on the net and asked the AI gods but they cannot figure out this riddle either.

what are you trying to do?

In essence I am trying to access DTS information in cmake.

yes that works fine, was more meaning show a dts snippet of what information you are trying to get

[Vge0rge]

Not possible to check the DT node directly rather than making a Kconfig option for it in sdk-nrf?

I am not aware of any way to do that no. I searched a bit on the net and asked the AI gods but they cannot figure out this riddle either.

what are you trying to do?

In essence I am trying to access DTS information in cmake.

yes that works fine, was more meaning show a dts snippet of what information you are trying to get

	soc {
		reserved-memory {
			#address-cells = <1>;
			#size-cells = <1>;
			ranges;

			 nrf_kmu_reserved_push_area: memory@20000000 {
				reg = <0x20000000 0x80>;
				compatible = "zephyr,memory-region", "mmio-sram";
				zephyr,memory-region = "nrf_kmu_reserved_push_area";
				status = "okay";
			 };

		};
	};

Here, what the Kconfig does is that it checks if there is a node with the name nrf_kmu_reserved_push_area enabled. Are you aware of any methodology to do that in cmake directly?