[nrf noup] drivers: spi_dw: add custom EXMIF peripheral handling #1673
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
The Synopsys Designware SPI peripheral core is wrapped in hardware that manages interrupts, power and clock. The SPI core registers are shifted by 0x500 bytes. Before the SPI core is used, the power and clock must be enabled by writing to EXMIF.TASKS_START register. Interrupts must be enabled by writing to EXMIF.INTENSET/INTENCLR registers. The SER register must be configured unconditionally during peripheral setup. Otherwise, the serial transaction does not complete. Signed-off-by: Rafał Kuźnia <[email protected]>
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Outdated suggestions cannot be applied.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.
The Synopsys Designware SPI peripheral core is wrapped in hardware that manages interrupts, power and clock. The SPI core registers are shifted by 0x500 bytes.
Before the SPI core is used, the power and clock must be enabled by writing to EXMIF.TASKS_START register.
Interrupts must be enabled by writing to EXMIF.INTENSET/INTENCLR registers.
The SER register must be configured unconditionally during peripheral setup. Otherwise, the serial transaction does not complete.