v18.9.0

We are pleased to announce the release of TT Zephyr Platforms firmware version 18.9.0 🥳🎉.

Major enhancements with this release include:

Performance Improvements

• Load spi flash images using temporary buffer rather than large statically allocated SRAM buffer

Stability Improvements

• Update Blackhole ERISC FW to v1.5.0

  • Updated some eth training sequencing to help with Galaxy UBB products

  • Added CALL_ACK postcode in eth msg mailboxes to show message has been read and is being processed

  • Added fence instructions in eth msg mailboxes to invalidate L1 cache when polling

  • Changed default training mode to AUTO mode from ANLT, will result in manual eq on Galaxy QSFP ports

  • ETH msg FEATURE_ENABLE: allows for enable/disablement of eth fw features

Drivers

• Added Tenstorrent Blackhole PVT driver based on Zephyr’s sensor API.

Migration guide

An overview of required and recommended changes to make when migrating from the previous v18.8.0 release can be found in v18.9 Migration Guide.

Full ChangeLog

The full ChangeLog from the previous v18.8.0 release can be found at the link below.

https://github.com/tenstorrent/tt-zephyr-platforms/compare/v18.8.0…v18.9.0