soc: k64f MPU configured to always allow ENET #17603
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ioannisg
approved these changes
Jul 17, 2019
Because NXP MPU's regions are dynamically enabled/disabled, ENET device's access maybe restricted when switching out of a task. Background DMA transfers from RAM to MAC/PHY may happen during MPU region reconfiguration or core idling. Enabled ENET (Kinetis MPU Master 3) to always have access to RAM address space. Signed-off-by: Andrei Gansari <[email protected]>
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Tested on hardware, locally (sanity check of arm, userspace, net and kernel tests on frdm_k64f) |
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Because NXP MPU's regions are dynamically enabled/disabled, ENET
device's access maybe restricted when switching out of a task.
Background DMA transfers from RAM to MAC/PHY may happen during MPU
region reconfiguration or core idling.
Enabled ENET (Kinetis MPU Master 3) to always have access to RAM address
space.
Fixes #16639
Signed-off-by: Andrei Gansari [email protected]