Device Software

Reference Firmware Images

The reference firmware images in this repo together make up the Reference Firmware Stack. Different images are used for different boot stages.

The reference firmware images are, in boot order:

  1. The ROM (in sw/device/silicon_creator/rom), executed at chip reset.
  2. The ROM_EXT, the second stage Silicon Creator code, executed from flash.

Testing-only Images

There are also some other standalone firmware images in the repository, which are only used for testing.

  • sw/device/tests contains several categories of chip-level tests, including smoke, IP integration, and system-level (use case) tests.

  • sw/vendor/eembc_coremark contains infrastructure for running the CoreMark benchmark suite on the device.

  • sw/device/riscv_compliance_support contains infrastructure so we can run the RISC-V Compliance tests.

  • sw/device/sca contains on-device software used for Side-Channel Analysis.

  • sw/device/prebuilt contains pre-built Tock images, which may not be up-to-date.

  • sw/device/examples contains example images, including a simple Hello World.

There are also prototype versions of some of the boot stages, now only used for testing: