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MdeModulePkg/SdMmcPciHcDxe: allow HC capabilities to be overridden

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Invoke the newly introduced SD/MMC override protocol to override
the capabilities register after reading it from the device registers,
and to call the pre/post host init and reset hooks at the appropriate
times.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
This commit is contained in:
Ard Biesheuvel
2017-12-07 22:43:22 +00:00
parent c7be0dd5b9
commit b23fc39cd3
5 changed files with 157 additions and 47 deletions
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36
MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHcDxe.h
View File

@@ -35,6 +35,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#include <Protocol/DriverBinding.h>
#include <Protocol/ComponentName.h>
#include <Protocol/ComponentName2.h>
#include <Protocol/SdMmcOverride.h>
#include <Protocol/SdMmcPassThru.h>
#include "SdMmcPciHci.h"
@@ -43,6 +44,8 @@ extern EFI_COMPONENT_NAME_PROTOCOL gSdMmcPciHcComponentName;
extern EFI_COMPONENT_NAME2_PROTOCOL gSdMmcPciHcComponentName2;
extern EFI_DRIVER_BINDING_PROTOCOL gSdMmcPciHcDriverBinding;
extern EDKII_SD_MMC_OVERRIDE *mOverride;
#define SD_MMC_HC_PRIVATE_SIGNATURE SIGNATURE_32 ('s', 'd', 't', 'f')
#define SD_MMC_HC_PRIVATE_FROM_THIS(a) \
@@ -782,4 +785,37 @@ SdCardIdentification (
IN UINT8 Slot
);
/**
Software reset the specified SD/MMC host controller.
@param[in] Private A pointer to the SD_MMC_HC_PRIVATE_DATA instance.
@param[in] Slot The slot number of the SD card to send the command to.
@retval EFI_SUCCESS The software reset executes successfully.
@retval Others The software reset fails.
**/
EFI_STATUS
SdMmcHcReset (
IN SD_MMC_HC_PRIVATE_DATA *Private,
IN UINT8 Slot
);
/**
Initial SD/MMC host controller with lowest clock frequency, max power and max timeout value
at initialization.
@param[in] Private A pointer to the SD_MMC_HC_PRIVATE_DATA instance.
@param[in] Slot The slot number of the SD card to send the command to.
@retval EFI_SUCCESS The host controller is initialized successfully.
@retval Others The host controller isn't initialized successfully.
**/
EFI_STATUS
SdMmcHcInitHost (
IN SD_MMC_HC_PRIVATE_DATA *Private,
IN UINT8 Slot
);
#endif