[PATCH 0/4] MdeModulePkg/SdMmcPciHcDxe: Refactor command processing


Albecki, Mateusz
 

This patch series aims to refactor command processing to achieve following

1. Trace the failing TRB packets to see what commands are failing and for what reasons
2. Get the response data even if data transfer timed out to allow easier debugging
3. Fix the PIO mode which is currently completely broken.

Tests performed:
1. Each patch in the series has passed boot from eMMC with ADMAv3 data transfer mode
2. SDMA based boot has been tested with the full patch series
3. PIO based boot has been tested with the full patch series
4. PIO based data transfer has been additionally tested by creating and modyfing a file in EFI shell

All tests were performed with eMMC in HS400 @200MHz clock frequency.

For easier review & integration patch has been pushed here:
Whole series: https://github.com/malbecki/edk2/tree/emmc_transfer_refactor
Whole series + SDMA force code(test 3): https://github.com/malbecki/edk2/tree/emmc_transfer_refactor_force_sdma
Whole series + PIO force code(test 4): https://github.com/malbecki/edk2/tree/emmc_transfer_refactor_force_pio

Cc: Hao A Wu <hao.a.wu@...>
Cc: Marcin Wojtas <mw@...>
Cc: Zhichao Gao <zhichao.gao@...>
Cc: Liming Gao <liming.gao@...>


Mateusz Albecki (4):
MdeModulePkg/SdMmcPciHcDxe: Enhance driver traces
MdeModulePkg/SdMmcPciHcDxe: Read response on command completion
MdeModulePkg/SdMmcPciHcDxe: Refactor data transfer completion
MdeModulePkg/SdMmcPciHcDxe: Fix PIO transfer mode

MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHcDxe.h | 4 +
MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHci.c | 502 ++++++++++++++++-----
2 files changed, 398 insertions(+), 108 deletions(-)

--
2.14.1.windows.1

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