v18.6.0
We are pleased to announce the release of TT Zephyr Platforms firmware version 18.6.0 🥳🎉.
Major enhancements with this release include:
Zephyr-4.2.0-rc1
This release of tt-zephyr-platforms
migrates our application to run on v4.2.0-rc1 of the Zephyr
Real-time Operating System. While the final v4.2.0 release of Zephyr is not yet available, we are
committed to ensuring that our platform will run on it when it is available.
Tenstorrent’s usage of Zephyr API usage has remained fairly consistent over the last release cycle. Of course, Zephyr’s APIs have been very stable for some time and the upstream continuous test environment is quite thorough.
Upstream (draft) release notes for the up-coming v4.2.0 release of Zephyr are available here.
More information about the Zephyr Release Process is available here.
New and Experimental Features
Enabled PCIe event counters
Performance Improvements
Enabled Quad DDR SPI mode to speed up loading cmfw
Stability Improvements
Aligned ASIC location definition in the SPI table with that of the telemetry table
Update Blackhole ERISC FW to v1.4.2
Updated ASIC location definition to align with SPI table changes
Implemented SDIF timeout for PVT sensor read
Update Blackhole MRISC FW to v2.8
Added Tuning setting for P300B cards
dram_ocd_pulldown_offset = 3 (MR2[2:0]) (increase pull down driver strength)
dram_data_termination_offset = 1 (MR3[2:0]) (decrease DRAM termination)
Wormhole FW blob updated
CMFW 2.34.0.0
Update voltage regulator settings for n300
Additional verification of voltage regulator programming
ERISC FW 6.7.0.0
Add multi-mesh support for T3K
Fix intermittent static training synchronization failures
Drivers
add
tenstorrent,bh-gpio
driver in place ofbh_arc
GPIO libraryadd
maxim,max6639
driver + testsadd
tenstorrent,bh-fwtable
driver + testsadd Zephyr PLL driver + tests
Migration guide
An overview of required and recommended changes to make when migrating from the previous v18.5.0 release can be found in v18.6.0 Migration Guide.
Full ChangeLog
The full ChangeLog from the previous v18.5.0 release can be found at the link below.
https://github.com/tenstorrent/tt-zephyr-platforms/compare/v18.5.0…v18.6.0