hal: renesas: smartbond: Store MPU config during sleep #168
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
When Zephyr was configured with MPU, MPU registers were lost during deep sleep. Now if CONFIG_ARM_MPU is enabled registers are stored before sleep and restored on wakeup. Signed-off-by: Jerzy Kasenberg <[email protected]>
ydamigos
approved these changes
Nov 12, 2025
ioannis-karachalios
approved these changes
Nov 12, 2025
KhiemNguyenT
approved these changes
Nov 13, 2025
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
4 participants
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Outdated suggestions cannot be applied.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.
When Zephyr was configured with MPU, MPU registers were lost during deep sleep.
Now if CONFIG_ARM_MPU is enabled registers are stored before sleep and restored on wakeup.
Without this change a lot of test that uses MPU fails.
In most other cases MPU is just disabled after first sleep and does not help to detect other errors.