Backround: We are planning to use TF-M with a two-stage bootloader (NSIB & MCUBoot) using dual-slots for secure and non-secure images. We need to support configurable fixed flash partitions (i.e. for event or configuration storage) and would like to retain the option to use an external flash in the future.
I have read through the nRF Connect SDK documentation, however it is not clear to me how the Partition Managed is used to configure fixed flash partitions for targets using TF-M. Could you please provide an example partition configuration on the nRF9160 (using internal flash) with: dual-slots for secure / non-secure images, secure storage (i.e. certificates), event storage (for telemetry) and configuration?
