Use SoC interface to talk to Caliptra #69
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
`caliptra-sw`'s emulator has an "external" SoC interface that can be used to communicate with it via the standard SoC interface. This writes a simple adapter layer so that the MCU emulator can mount that external interface as a peripheral on our root bus. I also added some code to the ROM that reads the flow status from the SoC interface as a basic check that the functionality is working. When running the MCU with a Caliptra ROM and runtime FW, it outputs: ``` Caliptra flow status 40000000 ``` When no Caliptra ROM or firmware are provided, the status is 0, so we can skip straight to Tock in that case (for now).
swenson
requested review from
parvathib,
mlvisaya,
mhatrevi,
vsonims and
helloxiling
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
caliptra-sw's emulator has an "external" SoC interface that can be used to communicate with it via the standard SoC interface.This writes a simple adapter layer so that the MCU emulator can mount that external interface as a peripheral on our root bus.
I also added some code to the ROM that reads the flow status from the SoC interface as a basic check that the functionality is working. When running the MCU with a Caliptra ROM and runtime FW, it outputs:
When no Caliptra ROM or firmware are provided, the status is 0, so we can skip straight to Tock in that case (for now).