[TF-M] Re: Increasing the flash partition for the Secure Firmware in TF-M for MPS2-AN521 board emulated using Qemu

Hello.

We identified the issue in our configuration. We had not adjusted the Zephyr's DTS file for the board (zephyrproject/zephyr/boards/arm/mps2_an521/mps2_an521_ns.dts). Specifically, the path to "/reserved-memory/code: memory@100000" had to be changed such that it is code: memory@12F000 { reg = <0x0012F000 DT_SIZE_K(300)>; };

from the original: code: memory@100000 { reg = <0x00100000 DT_SIZE_K(512)>; };

Hope this helps anyone else encountering this.