drivers: Add flash driver for RRAM #1501
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Upstream PR: zephyrproject-rtos/zephyr#68309 Added a simple driver for RRAM. It is implemented as a flash driver, because the "RRAM eFlash" macro obeys flash-like constraints. Although users are not required to erase before write. Signed-off-by: Jakub Zymelka <[email protected]>
Upstream PR: zephyrproject-rtos/zephyr#68309 Added synchronization with BLE radio operation to the RRAM flash driver. The implementation is using framework which is already provided for nrf52's flash driver. Additional added resource locking mechanism while driver does writing which solves mutual exclusion write access problem. Signed-off-by: Andrzej Puzdrowski <[email protected]> Signed-off-by: Jakub Zymelka <[email protected]>
…PSL in use Upstream PR: zephyrproject-rtos/zephyr#68309 When radio-synchronization was on (CONFIG_SOC_FLASH_NRF_RADIO_SYNC_NONE=n) context of writing was shifted by 4 instead of write-length (this caused redundant, self-shortening writes to the same block.) write-len was unset when requested write len was less than RRAM_MAX_WRITE_BUFFER. Signed-off-by: Andrzej Puzdrowski <[email protected]> Signed-off-by: Jakub Zymelka <[email protected]>
…s by default Upstream PR: zephyrproject-rtos/zephyr#68309 Now RRAMC is set to use up to 512 B burst writes by default as most time effective. Requested slot time was changed to 8000 us for that case, as this is required in order to hold the longest write operation. Drivers differs slot duration depending on configured RRAMC buffers count (CONFIG_NRF_RRAM_WRITE_BUFFER_SIZE). Signed-off-by: Andrzej Puzdrowski <[email protected]>
…er user selectable Upstream PR: zephyrproject-rtos/zephyr#68309 Make flash timeout multiplier user selectable for rram flash driver Signed-off-by: Pierce Lowe <[email protected]>
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Upstream PR: zephyrproject-rtos/zephyr#68309 Minor changes to standardize the driver code. Signed-off-by: Jakub Zymelka <[email protected]> Signed-off-by: Andrzej Puzdrowski <[email protected]>
Upstream PR: zephyrproject-rtos/zephyr#68309 Adds conditional usage of locking mechanisms to allow building without multithreading. Signed-off-by: Mateusz Michalek <[email protected]>
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FYI: the mpsl flash sync for 54L is picked here: nrfconnect/sdk-nrf#13966 |
de-nordic
approved these changes
Feb 19, 2024
michalek-no
approved these changes
Feb 20, 2024
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cherry-pick of: zephyrproject-rtos/zephyr#68309
The PR is already approved upstream.