| commit | 93cf362a4d6b9dfcb004b549149414ce9d04707d | [log] [tgz] |
|---|---|---|
| author | Michael Schaffner <msf@opentitan.org> | Thu Jul 08 13:22:19 2021 -0700 |
| committer | Michael Schaffner <msf@google.com> | Thu Jul 08 17:16:44 2021 -0700 |
| tree | f5da3df9e8fae18011a0bb39722201c9d2cea344 | |
| parent | 6f3c54f832626aab7ac4d8e6a2c45df532fff3e0 [diff] |
[otp_ctrl] Remove invalid command error This changes the behavior of the MacroError (code 0x1). In particular, it is not asserted anymore when an invalid command is issues to the wrapper. Such a condition would be a HW bug, and should not exist in the final design. Hence, the behavior of that error is changed such that it is only returned upon macro malfunction. The open source OTP wrapper does not model this condition, hence the corresponding test is removed. I.e., this condition will have to be checked as part of the closed source wrapper DV. In order to catch illegal HW behavior, this change adds assertions that check whether the otp controller issues legal commands to the OTP wrapper. Signed-off-by: Michael Schaffner <msf@opentitan.org>
OpenTitan is an open source silicon Root of Trust (RoT) project. OpenTitan will make the silicon RoT design and implementation more transparent, trustworthy, and secure for enterprises, platform providers, and chip manufacturers. OpenTitan is administered by lowRISC CIC as a collaborative project to produce high quality, open IP for instantiation as a full-featured product. See the OpenTitan site and OpenTitan docs for more information about the project.
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