| commit | d481eae7870ded78d1d455d387a3f7f75d5b9f35 | [log] [tgz] |
|---|---|---|
| author | Eunchan Kim <eunchan@opentitan.org> | Fri Nov 05 16:40:27 2021 +0000 |
| committer | Eunchan Kim <eunchan@opentitan.org> | Tue Nov 09 18:10:48 2021 +0000 |
| tree | 3ee5904555347ee4693874b45a39d77edd560d5d | |
| parent | 3b3bf9f0e2175dfee608a2263516e53d6601a03a [diff] |
[spi_device] Data Manipulation logic This commit implements the data manipulation feature in the passthrough mode. The data manipulation in the passthrough let SW change any bit of the first 4 bytes of the write data to the downstream flash device. To enable, SW may configure: - PAYLOAD_SWAP CSRs: set mask, data to change certain bits of the payload. - CMD_INFO.payload_swap_en: set to 1 to enable the feature (command specific) Note that enabling the feature depends on the command basis and the SWAP data is shared across all the commands. Signed-off-by: Eunchan Kim <eunchan@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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