[dpi, verilator]: Upgrade SPI DPI implementation #28803
Draft
+105
−166
Conversation
This file contains hidden or 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
* use a new protocol, incompatible with the legacy implementation * the new protocol is much simpler and exposes existing SPI DPI device signals: * host-to-device: SCK, SDI, CS * device-to-host: SDO, SDO_EN * there is no longer a limitation (32 bits) on transaction size * use an ASCII protocol to ease debugging (no overhead) * use environment variable to select whether to generate log files, and their kind: * `M` for "monitor" file, which are very verbose * `P` for "protocol" file, more compact to trace communication with SPI host * tested with JEDEC_ID, SFDP, PAGE_PROGRAM, READ, and HW config commands. Signed-off-by: Emmanuel Blot <[email protected]>
rivos-eblot
force-pushed
the
dev/ebl/spidev_dpi_new
branch
from
23b6075 to
8af5ee0
Compare
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
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Outdated suggestions cannot be applied.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.
Mfor "monitor" file, which are very verbosePfor "protocol" file, more compact to trace communication with SPI host