soc: k64f MPU configured to always allow USB #17834
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Because NXP MPU's regions are dynamically enabled/disabled, USB device's access maybe restricted when switching out of a task. Background DMA transfers to/from RAM may happen during MPU region reconfiguration or core idling. Enabled USB (Kinetis MPU Master 4) to always have access to RAM address space. Signed-off-by: Andrei Gansari <andrei.gansari@nxp.com>
agansari
added
area: Memory Protection
area: USB
ioannisg
approved these changes
Jul 29, 2019
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@agansari one last question - this needs to be back-ported, right? Did we back-port your other similar fix ? |
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@ioannisg yes, the last patch was backported to v1.14 |
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Yes, that's it i was looking for #17603 |
Ok, then we just back-port the current patch as well |
26 tasks
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The backport to To backport manually, run these commands in your terminal: # Fetch latest updates from GitHub.
git fetch
# Create new working tree.
git worktree add .worktrees/backport v1.14-branch
# Navigate to the new directory.
cd .worktrees/backport
# Cherry-pick all the commits of this pull request and resolve the likely conflicts.
git cherry-pick 65fd912ac2624e41ab5868d91d0fef81cd86955d
# Create a new branch with these backported commits.
git checkout -b backport-17834-to-v1.14-branch
# Push it to GitHub.
git push --set-upstream origin backport-17834-to-v1.14-branch
# Go back to the original working tree.
cd ../..
# Delete the working tree.
git worktree remove .worktrees/backportThen, create a pull request where the |
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@agansari the automatic backport failed, will you please create a manual backport PR to the 1.14-branch? |
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I think he can't because the patch is based on the earlier similar fix, whose back-port PR has not been merged to 1.14 yet |
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Because NXP MPU's regions are dynamically enabled/disabled, USB
device's access maybe restricted when switching out of a task.
Background DMA transfers to/from RAM may happen during MPU region
reconfiguration or core idling.
Enabled USB (Kinetis MPU Master 4) to always have access to RAM address
space.
Signed-off-by: Andrei Gansari andrei.gansari@nxp.com
Fixes #17007