mirror of https://github.com/ARMmbed/mbed-os.git
ea044e0695
* STM32F7: Unconditionally enable QSPI workarounds On the STM32769NI at least this patch is required for stable QSPI use. Enable it uncondtionally in case other boards need it too. Further discussions: https://github.com/ARMmbed/mbed-os/issues/10049 https://github.com/ARMmbed/mbed-os/issues/15108 https://github.com/STMicroelectronics/STM32CubeF7/issues/52 https://github.com/STMicroelectronics/STM32CubeF7/issues/82 * QSPIF: Attempt 4-byte addressing on Macronix chips mbed-os PR 11531 introduced 4-byte addressing in the QSPIF block device: https://github.com/ARMmbed/mbed-os/pull/11531 During testing it was found that this code broke on the NRF52840_DK and DISCO_F769NI. The NRF52840_DK controller seems unable to handle 4-byte addressing at all and has been disabled entirely in another code section. The DISCO_F769NI breakage was attributed to the flash chip but after more research I believe this is related to the QSPI controller, not the 4-byte addressing itself. Now that the QSPI controller has a workaround, enable 4-byte addressing again and hope it works fine this time. |
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