Hello,

Following the earlier deprecation announcement and a review period during which no objections were raised, we have now removed the following platforms from TF-M codebase and documentation:

* Musca-S1 (Arm) * BL5340 (Laird Connectivity) These platforms were deprecated due to inactivity and lack of maintenance. All related code, build configurations, and documentation have been removed.

Thanks, Anton

From: Anton Komlev via TF-M <tf-m@lists.trustedfirmware.orgmailto:tf-m@lists.trustedfirmware.org> Sent: Tuesday, May 20, 2025 1:59 PM To: tf-m@lists.trustedfirmware.orgmailto:tf-m@lists.trustedfirmware.org Cc: nd <nd@arm.commailto:nd@arm.com> Subject: [TF-M] Proposal to deprecate Musca-S1 and BL5340_dvk_cpuapp platforms

Hi everyone,

We would like to propose the deprecation of the following two TF-M platforms:

1. Musca-S1 (Arm) Musca-S1 was one of the earliest platforms featuring an Armv8-M silicon implementation, providing a valuable real hardware target for initial development. However, with the availability of many modern hardware platforms, Musca-S1 is no longer essential and can be deprecated. 2. BL5340_dvk_cpuapp (Laird Connectivity) This platform was initially proposed for deprecation at the end of 2023. Support activity has been minimal, and it closely mirrors the already-supported nRF5340 platform from Nordic Semiconductor. Please share any comments or objections regarding this proposal. If no major concerns are raised by the end of June 2025, we plan to mark these platforms as deprecated and proceed with their removal from the codebase.

Thank you, Anton