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EmbeddedPkg/Protocol/MmcHost: add new methods for I/O width and multiblock 

Add new protocol methods to change the bus width, speed and check
for multiblock support.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>

Split off protocol changes from implementation changes.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
This commit is contained in:
Haojian Zhuang 2016-11-23 21:36:21 +08:00 committed by Ard Biesheuvel
parent 6052a15f4a
commit a28b9aef67
1 changed files with 34 additions and 1 deletions
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35
EmbeddedPkg/Include/Protocol/MmcHost.h
View File

@ -49,6 +49,7 @@ typedef UINT32 MMC_CMD;
#define MMC_CMD2 (MMC_INDX(2) | MMC_CMD_WAIT_RESPONSE | MMC_CMD_LONG_RESPONSE)
#define MMC_CMD3 (MMC_INDX(3) | MMC_CMD_WAIT_RESPONSE)
#define MMC_CMD5 (MMC_INDX(5) | MMC_CMD_WAIT_RESPONSE | MMC_CMD_NO_CRC_RESPONSE)
#define MMC_CMD6 (MMC_INDX(6) | MMC_CMD_WAIT_RESPONSE)
#define MMC_CMD7 (MMC_INDX(7) | MMC_CMD_WAIT_RESPONSE)
#define MMC_CMD8 (MMC_INDX(8) | MMC_CMD_WAIT_RESPONSE)
#define MMC_CMD9 (MMC_INDX(9) | MMC_CMD_WAIT_RESPONSE | MMC_CMD_LONG_RESPONSE)
@ -61,13 +62,17 @@ typedef UINT32 MMC_CMD;
#define MMC_CMD20 (MMC_INDX(20) | MMC_CMD_WAIT_RESPONSE)
#define MMC_CMD23 (MMC_INDX(23) | MMC_CMD_WAIT_RESPONSE)
#define MMC_CMD24 (MMC_INDX(24) | MMC_CMD_WAIT_RESPONSE)
#define MMC_CMD25 (MMC_INDX(25) | MMC_CMD_WAIT_RESPONSE)
#define MMC_CMD55 (MMC_INDX(55) | MMC_CMD_WAIT_RESPONSE)
#define MMC_ACMD41 (MMC_INDX(41) | MMC_CMD_WAIT_RESPONSE | MMC_CMD_NO_CRC_RESPONSE)
#define MMC_ACMD51 (MMC_INDX(51) | MMC_CMD_WAIT_RESPONSE)
// Valid responses for CMD1 in eMMC
#define EMMC_CMD1_CAPACITY_LESS_THAN_2GB 0x00FF8080 // Capacity <= 2GB, byte addressing used
#define EMMC_CMD1_CAPACITY_GREATER_THAN_2GB 0x40FF8080 // Capacity > 2GB, 512-byte sector addressing used
#define MMC_STATUS_APP_CMD (1 << 5)
typedef enum _MMC_STATE {
MmcInvalidState = 0,
MmcHwInitializationState,
@ -82,6 +87,16 @@ typedef enum _MMC_STATE {
MmcDisconnectState,
} MMC_STATE;
#define EMMCBACKWARD (0)
#define EMMCHS26 (1 << 0) // High-Speed @26MHz at rated device voltages
#define EMMCHS52 (1 << 1) // High-Speed @52MHz at rated device voltages
#define EMMCHS52DDR1V8 (1 << 2) // High-Speed Dual Data Rate @52MHz 1.8V or 3V I/O
#define EMMCHS52DDR1V2 (1 << 3) // High-Speed Dual Data Rate @52MHz 1.2V I/O
#define EMMCHS200SDR1V8 (1 << 4) // HS200 Single Data Rate @200MHz 1.8V I/O
#define EMMCHS200SDR1V2 (1 << 5) // HS200 Single Data Rate @200MHz 1.2V I/O
#define EMMCHS400DDR1V8 (1 << 6) // HS400 Dual Data Rate @400MHz 1.8V I/O
#define EMMCHS400DDR1V2 (1 << 7) // HS400 Dual Data Rate @400MHz 1.2V I/O
///
/// Forward declaration for EFI_MMC_HOST_PROTOCOL
///
@ -131,6 +146,16 @@ typedef EFI_STATUS (EFIAPI *MMC_WRITEBLOCKDATA) (
IN UINT32 *Buffer
);
typedef EFI_STATUS (EFIAPI *MMC_SETIOS) (
IN EFI_MMC_HOST_PROTOCOL *This,
IN UINT32 BusClockFreq,
IN UINT32 BusWidth,
IN UINT32 TimingMode
);
typedef BOOLEAN (EFIAPI *MMC_ISMULTIBLOCK) (
IN EFI_MMC_HOST_PROTOCOL *This
);
struct _EFI_MMC_HOST_PROTOCOL {
@ -147,9 +172,17 @@ struct _EFI_MMC_HOST_PROTOCOL {
MMC_READBLOCKDATA ReadBlockData;
MMC_WRITEBLOCKDATA WriteBlockData;
MMC_SETIOS SetIos;
MMC_ISMULTIBLOCK IsMultiBlock;
};
#define MMC_HOST_PROTOCOL_REVISION 0x00010001 // 1.1
#define MMC_HOST_PROTOCOL_REVISION 0x00010002 // 1.2
#define MMC_HOST_HAS_SETIOS(Host) (Host->Revision >= MMC_HOST_PROTOCOL_REVISION && \
Host->SetIos != NULL)
#define MMC_HOST_HAS_ISMULTIBLOCK(Host) (Host->Revision >= MMC_HOST_PROTOCOL_REVISION && \
Host->IsMultiBlock != NULL)
extern EFI_GUID gEfiMmcHostProtocolGuid;