v18.4.0

We are pleased to announce the release of TT Zephyr Platforms firmware version 18.4.0 đŸ„łđŸŽ‰.

Major enhancements with this release include:

New Features

  • DMC now increments a counter for thermal trips and reports the count to SMC

    • SMC now reports this value in the telemetry table

    • This counter is reset on PERST

  • Add an SMC message to toggle Tensix resets for testing purposes

Performance Improvements

  • Wormhole FW blob updated

    • SPI bootrom 3.13.0.0

      • Remove PCIe MPS limit (Note: tt-kmd >= 1.33 is required)

    • CMFW 2.33.0.0

      • Fix to decrease variation across TMONs at idle

      • Make therm trip limit a SPI parameter

      • Backport BH-style telemetry tables

    • ERISC FW 6.6.15.0

      • Training improvements for 6U UBB Galaxy

Migration guide

An overview of required and recommended changes to make when migrating from the previous v18.3.0 release can be found in v18.4.0 Migration Guide.

Full ChangeLog

The full ChangeLog from the previous v18.3.0 release can be found at the link below.

https://github.com/tenstorrent/tt-zephyr-platforms/compare/v18.3.0
v18.4.0