OpenTitan Device Software
Reference Firmware Images
The OpenTitan Reference Firmware Images together make up the Opentitan Reference Firmware Stack. Different images are used for different boot stages.
The Reference Firmware Images are, in boot order:
- The Mask ROM (in
sw/device/mask_rom), executed at chip reset;
- The ROM_EXT (in
sw/device/silicon_creator/rom_ext), the second stage Silicon Creator code, executed from flash; and
There are also some other standalone firmware images in the repository, which are only used for testing.
sw/device/testscontains several categories of chip-level tests, including smoke, IP integration, and system-level (use case) tests.
sw/device/riscv_compliance_supportcontains infrastructure so we can run the RISC-V Compliance tests on the OpenTitan core.
sw/device/scacontains on-device software used for Side-Channel Analysis.
sw/device/prebuiltcontains pre-built Tock images, which may not be up-to-date.
sw/device/examplescontains example images, including a simple Hello World.
There are also prototype versions of some of the boot stages, now only used for testing:
sw/device/lib/testing/test_romis a previous, testing-only version of the Mask ROM.
sw/device/extscontains software for our prototype second boot stage images.
- Example Programs
- Device Libraries
- Silicon Creator Software