Tianocore/edk2-platforms.git/Platform/RaspberryPi/Drivers/MmcDxe, branch CodeCleanup

Platform/RaspberryPi: fix MmcTransferBlock (writes) regression for eMMC

2020-04-30T09:33:23+00:00

Way back when I added write block validation [0], I had screwed the logic up, breaking eMMC. This starts to matter on the CM3, which has eMMC. [0] https://github.com/andreiw/RaspberryPiPkg/commit/bdea35dc3f1652bf Signed-off-by: Andrei Warkentin Reviewed-by: Ard Biesheuvel

Platform/RPi/MmcDxe: Improve MMC driver stability

2019-12-02T17:35:52+00:00

For reasons that aren't entirely understood, SCR reads can randomly fail on the Raspberry Pi 4. It can be on the first boot or during subsequent reboots. To alleviate this, and improve the overall behavior of the code, we modify CheckCardsCallback () to retry InitializeMmcDevice () in case of failure. Signed-off-by: Pete Batard Reviewed-by: Ard Biesheuvel

Platform/RPi/MmcDxe: Factorize SCR call and clean up MMC init

2019-12-02T17:34:45+00:00

This is mostly a maintainability improvement for the InitializeSdMmcDevice () call achieved by factorizing the code related to SCR execution into a new SdExecuteScr () call. Signed-off-by: Pete Batard Reviewed-by: Ard Biesheuvel

Platforms/RPi3: Restructure platform in preparation for Pi 4

2019-10-21T14:32:32+00:00

In preparation for adding Raspberry Pi 4 support, the Pi 3 platform is restructured by factorizing all the drivers and libraries that are going to be commonly used by the two platforms. Because much of the Pi 4 SoC is an extension of the Pi 3 one this means that almost everything, except the ACPI tables, is moved up into a new common RaspberryPi/ subdirectory that will serve both platforms. The .dec is also moved to this directory, under a new RaspberryPi.dec name, and existing references to it are updated. This commit requires the edk2-non-osi in use to contain commit 243e55f622ea in order to build. Signed-off-by: Pete Batard Reviewed-by: Philippe Mathieu-Daude Reviewed-by: Leif Lindholm