upsilon/copying/README.md

Upsilon is a copyleft hardware project, which brings its own difficulties. Upsilon is dual-licensed in many locations.

The files under firmware/ are disjunctive dual-licensed under the CERN-OHL-S v2.0 (or any later version), or the GNU GPL v3.0 (or any later version).

The files under buildroot/ and opensbi/ are licensed under a BSD 2-clause license.

The files under doc/ are disjunctively dual-licensed under the CC BY-SA 4.0, or the GNU GPL v3.0 (or any later version).

The files under software/ are disjunctively dual-licensed under the CERN-OHL-S v2.0 (or any later version), or the GNU GPL v3.0 (or any later version).

All files under build/ are licensed under the Apache 2.0 license.

All license files under copying/ (except this one) are licensed according to the text of the license.

Any other file is licensed under the GNU GPL v3.0 (or any later version).

Some files contain additional licenses. You must comply with the terms of both the license in a file and the licenses specified here.