[nrf noup] dts: choose a psa-rng for entropy for 54lm20a #3272
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aescolar
approved these changes
Sep 12, 2025
hermabe
approved these changes
Sep 12, 2025
|
Do we need the same change for nrf54LV10? |
As of now there is not nRF54LV10 board in sdk-zephyr. It is available here: https://github.com/nrfconnect/sdk-nrf/blob/fe3d5953976bb1272df2178e15280c64025c3912/dts/arm/nordic/nrf54lv10a_enga_cpuapp.dtsi#L21. I hope when the nRF54LV10 is moved to sdk-zephyr a team responsible for that makes all changes correctly including entropy source configuration. |
Set PSA as the entropy source for nRF54lm20a target. PSA is the only NCS-supported interface to CRACEN. There is no other entropy source in 54lm20a than CRACEN. The commit also disables `rng` compatible with `nrf-cracen-ctrdrbg`, the nrfx based interface to CRACEN that is used in upstream Zephyr. Only one CRACEN interface may be enabled. Signed-off-by: Piotr Pryga <piotr.pryga@nordicsemi.no>
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Set PSA as the entropy source for nRF54lm20a target. PSA is the only NCS-supported interface to CRACEN. There is no other entropy source in 54lm20a than CRACEN.
The commit also disables
rngcompatible withnrf-cracen-ctrdrbg, the nrfx based interface to CRACEN that is used in upstream Zephyr. Only one CRACEN interface may be enabled.