diff options
Diffstat (limited to 'EmbeddedPkg/Universal/MmcDxe/MmcIdentification.c')
| -rwxr-xr-x | EmbeddedPkg/Universal/MmcDxe/MmcIdentification.c | 347 |
1 files changed, 194 insertions, 153 deletions
diff --git a/EmbeddedPkg/Universal/MmcDxe/MmcIdentification.c b/EmbeddedPkg/Universal/MmcDxe/MmcIdentification.c index 0df948426f..86eb55800e 100755 --- a/EmbeddedPkg/Universal/MmcDxe/MmcIdentification.c +++ b/EmbeddedPkg/Universal/MmcDxe/MmcIdentification.c @@ -13,38 +13,38 @@ #include "Mmc.h"
typedef union {
- UINT32 Raw;
- OCR Ocr;
+ UINT32 Raw;
+ OCR Ocr;
} OCR_RESPONSE;
-#define MAX_RETRY_COUNT 1000
-#define CMD_RETRY_COUNT 20
-#define RCA_SHIFT_OFFSET 16
-#define EMMC_CARD_SIZE 512
-#define EMMC_ECSD_SIZE_OFFSET 53
+#define MAX_RETRY_COUNT 1000
+#define CMD_RETRY_COUNT 20
+#define RCA_SHIFT_OFFSET 16
+#define EMMC_CARD_SIZE 512
+#define EMMC_ECSD_SIZE_OFFSET 53
-#define EXTCSD_BUS_WIDTH 183
-#define EXTCSD_HS_TIMING 185
+#define EXTCSD_BUS_WIDTH 183
+#define EXTCSD_HS_TIMING 185
-#define EMMC_TIMING_BACKWARD 0
-#define EMMC_TIMING_HS 1
-#define EMMC_TIMING_HS200 2
-#define EMMC_TIMING_HS400 3
+#define EMMC_TIMING_BACKWARD 0
+#define EMMC_TIMING_HS 1
+#define EMMC_TIMING_HS200 2
+#define EMMC_TIMING_HS400 3
-#define EMMC_BUS_WIDTH_1BIT 0
-#define EMMC_BUS_WIDTH_4BIT 1
-#define EMMC_BUS_WIDTH_8BIT 2
-#define EMMC_BUS_WIDTH_DDR_4BIT 5
-#define EMMC_BUS_WIDTH_DDR_8BIT 6
+#define EMMC_BUS_WIDTH_1BIT 0
+#define EMMC_BUS_WIDTH_4BIT 1
+#define EMMC_BUS_WIDTH_8BIT 2
+#define EMMC_BUS_WIDTH_DDR_4BIT 5
+#define EMMC_BUS_WIDTH_DDR_8BIT 6
-#define EMMC_SWITCH_ERROR (1 << 7)
+#define EMMC_SWITCH_ERROR (1 << 7)
-#define SD_BUS_WIDTH_1BIT (1 << 0)
-#define SD_BUS_WIDTH_4BIT (1 << 2)
+#define SD_BUS_WIDTH_1BIT (1 << 0)
+#define SD_BUS_WIDTH_4BIT (1 << 2)
-#define SD_CCC_SWITCH (1 << 10)
+#define SD_CCC_SWITCH (1 << 10)
-#define DEVICE_STATE(x) (((x) >> 9) & 0xf)
+#define DEVICE_STATE(x) (((x) >> 9) & 0xf)
typedef enum _EMMC_DEVICE_STATE {
EMMC_IDLE_STATE = 0,
EMMC_READY_STATE,
@@ -59,41 +59,44 @@ typedef enum _EMMC_DEVICE_STATE { EMMC_SLP_STATE
} EMMC_DEVICE_STATE;
-UINT32 mEmmcRcaCount = 0;
+UINT32 mEmmcRcaCount = 0;
STATIC
EFI_STATUS
EFIAPI
EmmcGetDeviceState (
- IN MMC_HOST_INSTANCE *MmcHostInstance,
- OUT EMMC_DEVICE_STATE *State
+ IN MMC_HOST_INSTANCE *MmcHostInstance,
+ OUT EMMC_DEVICE_STATE *State
)
{
- EFI_MMC_HOST_PROTOCOL *Host;
- EFI_STATUS Status;
- UINT32 Data, RCA;
+ EFI_MMC_HOST_PROTOCOL *Host;
+ EFI_STATUS Status;
+ UINT32 Data, RCA;
if (State == NULL) {
return EFI_INVALID_PARAMETER;
}
- Host = MmcHostInstance->MmcHost;
- RCA = MmcHostInstance->CardInfo.RCA << RCA_SHIFT_OFFSET;
+ Host = MmcHostInstance->MmcHost;
+ RCA = MmcHostInstance->CardInfo.RCA << RCA_SHIFT_OFFSET;
Status = Host->SendCommand (Host, MMC_CMD13, RCA);
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "EmmcGetDeviceState(): Failed to get card status, Status=%r.\n", Status));
return Status;
}
+
Status = Host->ReceiveResponse (Host, MMC_RESPONSE_TYPE_R1, &Data);
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "EmmcGetDeviceState(): Failed to get response of CMD13, Status=%r.\n", Status));
return Status;
}
+
if (Data & EMMC_SWITCH_ERROR) {
DEBUG ((DEBUG_ERROR, "EmmcGetDeviceState(): Failed to switch expected mode, Status=%r.\n", Status));
return EFI_DEVICE_ERROR;
}
- *State = DEVICE_STATE(Data);
+
+ *State = DEVICE_STATE (Data);
return EFI_SUCCESS;
}
@@ -101,24 +104,25 @@ STATIC EFI_STATUS
EFIAPI
EmmcSetEXTCSD (
- IN MMC_HOST_INSTANCE *MmcHostInstance,
- UINT32 ExtCmdIndex,
- UINT32 Value
+ IN MMC_HOST_INSTANCE *MmcHostInstance,
+ UINT32 ExtCmdIndex,
+ UINT32 Value
)
{
- EFI_MMC_HOST_PROTOCOL *Host;
- EMMC_DEVICE_STATE State;
- EFI_STATUS Status;
- UINT32 Argument;
-
- Host = MmcHostInstance->MmcHost;
- Argument = EMMC_CMD6_ARG_ACCESS(3) | EMMC_CMD6_ARG_INDEX(ExtCmdIndex) |
- EMMC_CMD6_ARG_VALUE(Value) | EMMC_CMD6_ARG_CMD_SET(1);
+ EFI_MMC_HOST_PROTOCOL *Host;
+ EMMC_DEVICE_STATE State;
+ EFI_STATUS Status;
+ UINT32 Argument;
+
+ Host = MmcHostInstance->MmcHost;
+ Argument = EMMC_CMD6_ARG_ACCESS (3) | EMMC_CMD6_ARG_INDEX (ExtCmdIndex) |
+ EMMC_CMD6_ARG_VALUE (Value) | EMMC_CMD6_ARG_CMD_SET (1);
Status = Host->SendCommand (Host, MMC_CMD6, Argument);
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "EmmcSetEXTCSD(): Failed to send CMD6, Status=%r.\n", Status));
return Status;
}
+
// Make sure device exiting prog mode
do {
Status = EmmcGetDeviceState (MmcHostInstance, &State);
@@ -127,6 +131,7 @@ EmmcSetEXTCSD ( return Status;
}
} while (State == EMMC_PRG_STATE);
+
return EFI_SUCCESS;
}
@@ -134,15 +139,15 @@ STATIC EFI_STATUS
EFIAPI
EmmcIdentificationMode (
- IN MMC_HOST_INSTANCE *MmcHostInstance,
- IN OCR_RESPONSE Response
+ IN MMC_HOST_INSTANCE *MmcHostInstance,
+ IN OCR_RESPONSE Response
)
{
- EFI_MMC_HOST_PROTOCOL *Host;
- EFI_BLOCK_IO_MEDIA *Media;
- EFI_STATUS Status;
- EMMC_DEVICE_STATE State;
- UINT32 RCA;
+ EFI_MMC_HOST_PROTOCOL *Host;
+ EFI_BLOCK_IO_MEDIA *Media;
+ EFI_STATUS Status;
+ EMMC_DEVICE_STATE State;
+ UINT32 RCA;
Host = MmcHostInstance->MmcHost;
Media = MmcHostInstance->BlockIo.Media;
@@ -162,8 +167,8 @@ EmmcIdentificationMode ( // Assign a relative address value to the card
MmcHostInstance->CardInfo.RCA = ++mEmmcRcaCount; // TODO: might need a more sophisticated way of doing this
- RCA = MmcHostInstance->CardInfo.RCA << RCA_SHIFT_OFFSET;
- Status = Host->SendCommand (Host, MMC_CMD3, RCA);
+ RCA = MmcHostInstance->CardInfo.RCA << RCA_SHIFT_OFFSET;
+ Status = Host->SendCommand (Host, MMC_CMD3, RCA);
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "EmmcIdentificationMode(): RCA set error, Status=%r.\n", Status));
return Status;
@@ -188,7 +193,7 @@ EmmcIdentificationMode ( DEBUG ((DEBUG_ERROR, "EmmcIdentificationMode(): Card selection error, Status=%r.\n", Status));
}
- if (MMC_HOST_HAS_SETIOS(Host)) {
+ if (MMC_HOST_HAS_SETIOS (Host)) {
// Set 1-bit bus width
Status = Host->SetIos (Host, 0, 1, EMMCBACKWARD);
if (EFI_ERROR (Status)) {
@@ -209,6 +214,7 @@ EmmcIdentificationMode ( if (MmcHostInstance->CardInfo.ECSDData == NULL) {
return EFI_OUT_OF_RESOURCES;
}
+
Status = Host->SendCommand (Host, MMC_CMD8, 0);
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "EmmcIdentificationMode(): ECSD fetch error, Status=%r.\n", Status));
@@ -230,11 +236,11 @@ EmmcIdentificationMode ( } while (State == EMMC_DATA_STATE);
// Set up media
- Media->BlockSize = EMMC_CARD_SIZE; // 512-byte support is mandatory for eMMC cards
- Media->MediaId = MmcHostInstance->CardInfo.CIDData.PSN;
- Media->ReadOnly = MmcHostInstance->CardInfo.CSDData.PERM_WRITE_PROTECT;
+ Media->BlockSize = EMMC_CARD_SIZE; // 512-byte support is mandatory for eMMC cards
+ Media->MediaId = MmcHostInstance->CardInfo.CIDData.PSN;
+ Media->ReadOnly = MmcHostInstance->CardInfo.CSDData.PERM_WRITE_PROTECT;
Media->LogicalBlocksPerPhysicalBlock = 1;
- Media->IoAlign = 4;
+ Media->IoAlign = 4;
// Compute last block using bits [215:212] of the ECSD
Media->LastBlock = MmcHostInstance->CardInfo.ECSDData->SECTOR_COUNT - 1; // eMMC isn't supposed to report this for
// Cards <2GB in size, but the model does.
@@ -251,23 +257,25 @@ FreePageExit: STATIC
EFI_STATUS
InitializeEmmcDevice (
- IN MMC_HOST_INSTANCE *MmcHostInstance
+ IN MMC_HOST_INSTANCE *MmcHostInstance
)
{
- EFI_MMC_HOST_PROTOCOL *Host;
- EFI_STATUS Status = EFI_SUCCESS;
- ECSD *ECSDData;
- UINT32 BusClockFreq, Idx, BusMode;
- UINT32 TimingMode[4] = {EMMCHS52DDR1V2, EMMCHS52DDR1V8, EMMCHS52, EMMCHS26};
+ EFI_MMC_HOST_PROTOCOL *Host;
+ EFI_STATUS Status = EFI_SUCCESS;
+ ECSD *ECSDData;
+ UINT32 BusClockFreq, Idx, BusMode;
+ UINT32 TimingMode[4] = { EMMCHS52DDR1V2, EMMCHS52DDR1V8, EMMCHS52, EMMCHS26 };
- Host = MmcHostInstance->MmcHost;
+ Host = MmcHostInstance->MmcHost;
ECSDData = MmcHostInstance->CardInfo.ECSDData;
- if (ECSDData->DEVICE_TYPE == EMMCBACKWARD)
+ if (ECSDData->DEVICE_TYPE == EMMCBACKWARD) {
return EFI_SUCCESS;
+ }
- if (!MMC_HOST_HAS_SETIOS(Host)) {
+ if (!MMC_HOST_HAS_SETIOS (Host)) {
return EFI_SUCCESS;
}
+
Status = EmmcSetEXTCSD (MmcHostInstance, EXTCSD_HS_TIMING, EMMC_TIMING_HS);
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "InitializeEmmcDevice(): Failed to switch high speed mode, Status:%r.\n", Status));
@@ -276,52 +284,56 @@ InitializeEmmcDevice ( for (Idx = 0; Idx < 4; Idx++) {
switch (TimingMode[Idx]) {
- case EMMCHS52DDR1V2:
- case EMMCHS52DDR1V8:
- case EMMCHS52:
- BusClockFreq = 52000000;
- break;
- case EMMCHS26:
- BusClockFreq = 26000000;
- break;
- default:
- return EFI_UNSUPPORTED;
- }
- Status = Host->SetIos (Host, BusClockFreq, 8, TimingMode[Idx]);
- if (!EFI_ERROR (Status)) {
- switch (TimingMode[Idx]) {
case EMMCHS52DDR1V2:
case EMMCHS52DDR1V8:
- BusMode = EMMC_BUS_WIDTH_DDR_8BIT;
- break;
case EMMCHS52:
+ BusClockFreq = 52000000;
+ break;
case EMMCHS26:
- BusMode = EMMC_BUS_WIDTH_8BIT;
+ BusClockFreq = 26000000;
break;
default:
return EFI_UNSUPPORTED;
+ }
+
+ Status = Host->SetIos (Host, BusClockFreq, 8, TimingMode[Idx]);
+ if (!EFI_ERROR (Status)) {
+ switch (TimingMode[Idx]) {
+ case EMMCHS52DDR1V2:
+ case EMMCHS52DDR1V8:
+ BusMode = EMMC_BUS_WIDTH_DDR_8BIT;
+ break;
+ case EMMCHS52:
+ case EMMCHS26:
+ BusMode = EMMC_BUS_WIDTH_8BIT;
+ break;
+ default:
+ return EFI_UNSUPPORTED;
}
+
Status = EmmcSetEXTCSD (MmcHostInstance, EXTCSD_BUS_WIDTH, BusMode);
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "InitializeEmmcDevice(): Failed to set EXTCSD bus width, Status:%r\n", Status));
}
+
return Status;
}
}
+
return Status;
}
STATIC
UINT32
CreateSwitchCmdArgument (
- IN UINT32 Mode,
- IN UINT8 Group,
- IN UINT8 Value
+ IN UINT32 Mode,
+ IN UINT8 Group,
+ IN UINT8 Value
)
{
- UINT32 Argument;
+ UINT32 Argument;
- Argument = Mode << 31 | 0x00FFFFFF;
+ Argument = Mode << 31 | 0x00FFFFFF;
Argument &= ~(0xF << (Group * 4));
Argument |= Value << (Group * 4);
@@ -331,51 +343,52 @@ CreateSwitchCmdArgument ( STATIC
EFI_STATUS
InitializeSdMmcDevice (
- IN MMC_HOST_INSTANCE *MmcHostInstance
+ IN MMC_HOST_INSTANCE *MmcHostInstance
)
{
- UINT32 CmdArg;
- UINT32 Response[4];
- UINT32 Buffer[128];
- UINT32 Speed;
- UINTN BlockSize;
- UINTN CardSize;
- UINTN NumBlocks;
- BOOLEAN CccSwitch;
- SCR Scr;
- EFI_STATUS Status;
- EFI_MMC_HOST_PROTOCOL *MmcHost;
-
- Speed = SD_DEFAULT_SPEED;
+ UINT32 CmdArg;
+ UINT32 Response[4];
+ UINT32 Buffer[128];
+ UINT32 Speed;
+ UINTN BlockSize;
+ UINTN CardSize;
+ UINTN NumBlocks;
+ BOOLEAN CccSwitch;
+ SCR Scr;
+ EFI_STATUS Status;
+ EFI_MMC_HOST_PROTOCOL *MmcHost;
+
+ Speed = SD_DEFAULT_SPEED;
MmcHost = MmcHostInstance->MmcHost;
// Send a command to get Card specific data
CmdArg = MmcHostInstance->CardInfo.RCA << 16;
Status = MmcHost->SendCommand (MmcHost, MMC_CMD9, CmdArg);
if (EFI_ERROR (Status)) {
- DEBUG((DEBUG_ERROR, "InitializeSdMmcDevice(MMC_CMD9): Error, Status=%r\n", Status));
+ DEBUG ((DEBUG_ERROR, "InitializeSdMmcDevice(MMC_CMD9): Error, Status=%r\n", Status));
return Status;
}
// Read Response
Status = MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_CSD, Response);
if (EFI_ERROR (Status)) {
- DEBUG((DEBUG_ERROR, "InitializeSdMmcDevice(): Failed to receive CSD, Status=%r\n", Status));
+ DEBUG ((DEBUG_ERROR, "InitializeSdMmcDevice(): Failed to receive CSD, Status=%r\n", Status));
return Status;
}
+
PrintCSD (Response);
- if (MMC_CSD_GET_CCC(Response) & SD_CCC_SWITCH) {
+ if (MMC_CSD_GET_CCC (Response) & SD_CCC_SWITCH) {
CccSwitch = TRUE;
} else {
CccSwitch = FALSE;
}
if (MmcHostInstance->CardInfo.CardType == SD_CARD_2_HIGH) {
- CardSize = HC_MMC_CSD_GET_DEVICESIZE (Response);
+ CardSize = HC_MMC_CSD_GET_DEVICESIZE (Response);
NumBlocks = ((CardSize + 1) * 1024);
BlockSize = 1 << MMC_CSD_GET_READBLLEN (Response);
} else {
- CardSize = MMC_CSD_GET_DEVICESIZE (Response);
+ CardSize = MMC_CSD_GET_DEVICESIZE (Response);
NumBlocks = (CardSize + 1) * (1 << (MMC_CSD_GET_DEVICESIZEMULT (Response) + 2));
BlockSize = 1 << MMC_CSD_GET_READBLLEN (Response);
}
@@ -395,7 +408,7 @@ InitializeSdMmcDevice ( CmdArg = MmcHostInstance->CardInfo.RCA << 16;
Status = MmcHost->SendCommand (MmcHost, MMC_CMD7, CmdArg);
if (EFI_ERROR (Status)) {
- DEBUG((DEBUG_ERROR, "InitializeSdMmcDevice(MMC_CMD7): Error and Status = %r\n", Status));
+ DEBUG ((DEBUG_ERROR, "InitializeSdMmcDevice(MMC_CMD7): Error and Status = %r\n", Status));
return Status;
}
@@ -404,11 +417,13 @@ InitializeSdMmcDevice ( DEBUG ((DEBUG_ERROR, "%a (MMC_CMD55): Error and Status = %r\n", __FUNCTION__, Status));
return Status;
}
+
Status = MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_R1, Response);
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "%a (MMC_CMD55): Error and Status = %r\n", __FUNCTION__, Status));
return Status;
}
+
if ((Response[0] & MMC_STATUS_APP_CMD) == 0) {
return EFI_SUCCESS;
}
@@ -424,40 +439,42 @@ InitializeSdMmcDevice ( DEBUG ((DEBUG_ERROR, "%a(MMC_ACMD51): ReadBlockData Error and Status = %r\n", __func__, Status));
return Status;
}
+
CopyMem (&Scr, Buffer, 8);
if (Scr.SD_SPEC == 2) {
if (Scr.SD_SPEC3 == 1) {
- if (Scr.SD_SPEC4 == 1) {
+ if (Scr.SD_SPEC4 == 1) {
DEBUG ((DEBUG_INFO, "Found SD Card for Spec Version 4.xx\n"));
- } else {
+ } else {
DEBUG ((DEBUG_INFO, "Found SD Card for Spec Version 3.0x\n"));
- }
+ }
} else {
- if (Scr.SD_SPEC4 == 0) {
+ if (Scr.SD_SPEC4 == 0) {
DEBUG ((DEBUG_INFO, "Found SD Card for Spec Version 2.0\n"));
- } else {
- DEBUG ((DEBUG_ERROR, "Found invalid SD Card\n"));
- }
+ } else {
+ DEBUG ((DEBUG_ERROR, "Found invalid SD Card\n"));
+ }
}
} else {
if ((Scr.SD_SPEC3 == 0) && (Scr.SD_SPEC4 == 0)) {
if (Scr.SD_SPEC == 1) {
- DEBUG ((DEBUG_INFO, "Found SD Card for Spec Version 1.10\n"));
- } else {
- DEBUG ((DEBUG_INFO, "Found SD Card for Spec Version 1.0\n"));
- }
+ DEBUG ((DEBUG_INFO, "Found SD Card for Spec Version 1.10\n"));
+ } else {
+ DEBUG ((DEBUG_INFO, "Found SD Card for Spec Version 1.0\n"));
+ }
} else {
DEBUG ((DEBUG_ERROR, "Found invalid SD Card\n"));
}
}
}
+
if (CccSwitch) {
/* SD Switch, Mode:0, Group:0, Value:0 */
- CmdArg = CreateSwitchCmdArgument(0, 0, 0);
+ CmdArg = CreateSwitchCmdArgument (0, 0, 0);
Status = MmcHost->SendCommand (MmcHost, MMC_CMD6, CmdArg);
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "%a (MMC_CMD6): Error and Status = %r\n", __FUNCTION__, Status));
- return Status;
+ return Status;
} else {
Status = MmcHost->ReadBlockData (MmcHost, 0, SWITCH_CMD_DATA_LENGTH, Buffer);
if (EFI_ERROR (Status)) {
@@ -472,7 +489,7 @@ InitializeSdMmcDevice ( Speed = SD_HIGH_SPEED;
/* SD Switch, Mode:1, Group:0, Value:1 */
- CmdArg = CreateSwitchCmdArgument(1, 0, 1);
+ CmdArg = CreateSwitchCmdArgument (1, 0, 1);
Status = MmcHost->SendCommand (MmcHost, MMC_CMD6, CmdArg);
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "%a (MMC_CMD6): Error and Status = %r\n", __FUNCTION__, Status));
@@ -485,12 +502,13 @@ InitializeSdMmcDevice ( }
if ((Buffer[4] & SWITCH_CMD_SUCCESS_MASK) != 0x01000000) {
- DEBUG((DEBUG_ERROR, "Problem switching SD card into high-speed mode\n"));
+ DEBUG ((DEBUG_ERROR, "Problem switching SD card into high-speed mode\n"));
return Status;
}
}
}
}
+
if (Scr.SD_BUS_WIDTHS & SD_BUS_WIDTH_4BIT) {
CmdArg = MmcHostInstance->CardInfo.RCA << 16;
Status = MmcHost->SendCommand (MmcHost, MMC_CMD55, CmdArg);
@@ -498,6 +516,7 @@ InitializeSdMmcDevice ( DEBUG ((DEBUG_ERROR, "%a (MMC_CMD55): Error and Status = %r\n", __FUNCTION__, Status));
return Status;
}
+
/* Width: 4 */
Status = MmcHost->SendCommand (MmcHost, MMC_CMD6, 2);
if (EFI_ERROR (Status)) {
@@ -505,13 +524,15 @@ InitializeSdMmcDevice ( return Status;
}
}
- if (MMC_HOST_HAS_SETIOS(MmcHost)) {
+
+ if (MMC_HOST_HAS_SETIOS (MmcHost)) {
Status = MmcHost->SetIos (MmcHost, Speed, BUSWIDTH_4, EMMCBACKWARD);
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "%a (SetIos): Error and Status = %r\n", __FUNCTION__, Status));
return Status;
}
}
+
return EFI_SUCCESS;
}
@@ -519,20 +540,20 @@ STATIC EFI_STATUS
EFIAPI
MmcIdentificationMode (
- IN MMC_HOST_INSTANCE *MmcHostInstance
+ IN MMC_HOST_INSTANCE *MmcHostInstance
)
{
- EFI_STATUS Status;
- UINT32 Response[4];
- UINTN Timeout;
- UINTN CmdArg;
- BOOLEAN IsHCS;
- EFI_MMC_HOST_PROTOCOL *MmcHost;
- OCR_RESPONSE OcrResponse;
+ EFI_STATUS Status;
+ UINT32 Response[4];
+ UINTN Timeout;
+ UINTN CmdArg;
+ BOOLEAN IsHCS;
+ EFI_MMC_HOST_PROTOCOL *MmcHost;
+ OCR_RESPONSE OcrResponse;
MmcHost = MmcHostInstance->MmcHost;
- CmdArg = 0;
- IsHCS = FALSE;
+ CmdArg = 0;
+ IsHCS = FALSE;
if (MmcHost == NULL) {
return EFI_INVALID_PARAMETER;
@@ -553,6 +574,7 @@ MmcIdentificationMode ( DEBUG ((DEBUG_ERROR, "MmcIdentificationMode(MMC_CMD0): Error, Status=%r.\n", Status));
return Status;
}
+
Status = MmcNotifyState (MmcHostInstance, MmcIdleState);
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "MmcIdentificationMode() : Error MmcIdleState, Status=%r.\n", Status));
@@ -564,30 +586,36 @@ MmcIdentificationMode ( Timeout = MAX_RETRY_COUNT;
do {
Status = MmcHost->SendCommand (MmcHost, MMC_CMD1, EMMC_CMD1_CAPACITY_GREATER_THAN_2GB);
- if (EFI_ERROR (Status))
+ if (EFI_ERROR (Status)) {
break;
+ }
+
Status = MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_OCR, (UINT32 *)&OcrResponse);
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "MmcIdentificationMode() : Failed to receive OCR, Status=%r.\n", Status));
return Status;
}
+
Timeout--;
} while (!OcrResponse.Ocr.PowerUp && (Timeout > 0));
+
if (Status == EFI_SUCCESS) {
if (!OcrResponse.Ocr.PowerUp) {
DEBUG ((DEBUG_ERROR, "MmcIdentificationMode(MMC_CMD1): Card initialisation failure, Status=%r.\n", Status));
return EFI_DEVICE_ERROR;
}
+
OcrResponse.Ocr.PowerUp = 0;
if (OcrResponse.Raw == EMMC_CMD1_CAPACITY_GREATER_THAN_2GB) {
MmcHostInstance->CardInfo.OCRData.AccessMode = BIT1;
- }
- else {
+ } else {
MmcHostInstance->CardInfo.OCRData.AccessMode = 0x0;
}
+
// Check whether MMC or eMMC
- if (OcrResponse.Raw == EMMC_CMD1_CAPACITY_GREATER_THAN_2GB ||
- OcrResponse.Raw == EMMC_CMD1_CAPACITY_LESS_THAN_2GB) {
+ if ((OcrResponse.Raw == EMMC_CMD1_CAPACITY_GREATER_THAN_2GB) ||
+ (OcrResponse.Raw == EMMC_CMD1_CAPACITY_LESS_THAN_2GB))
+ {
return EmmcIdentificationMode (MmcHostInstance, OcrResponse);
}
}
@@ -604,12 +632,13 @@ MmcIdentificationMode ( Status = MmcHost->SendCommand (MmcHost, MMC_CMD8, CmdArg);
if (Status == EFI_SUCCESS) {
DEBUG ((DEBUG_ERROR, "Card is SD2.0 => Supports high capacity\n"));
- IsHCS = TRUE;
+ IsHCS = TRUE;
Status = MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_R7, Response);
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "MmcIdentificationMode() : Failed to receive response to CMD8, Status=%r.\n", Status));
return Status;
}
+
PrintResponseR1 (Response[0]);
// Check if it is valid response
if (Response[0] != CmdArg) {
@@ -634,10 +663,11 @@ MmcIdentificationMode ( }
// Note: The first time CmdArg will be zero
- CmdArg = ((UINTN *) &(MmcHostInstance->CardInfo.OCRData))[0];
+ CmdArg = ((UINTN *)&(MmcHostInstance->CardInfo.OCRData))[0];
if (IsHCS) {
CmdArg |= BIT30;
}
+
Status = MmcHost->SendCommand (MmcHost, MMC_ACMD41, CmdArg);
if (!EFI_ERROR (Status)) {
Status = MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_OCR, Response);
@@ -645,7 +675,8 @@ MmcIdentificationMode ( DEBUG ((DEBUG_ERROR, "MmcIdentificationMode() : Failed to receive OCR, Status=%r.\n", Status));
return Status;
}
- ((UINT32 *) &(MmcHostInstance->CardInfo.OCRData))[0] = Response[0];
+
+ ((UINT32 *)&(MmcHostInstance->CardInfo.OCRData))[0] = Response[0];
}
} else {
DEBUG ((DEBUG_INFO, "Card should be MMC\n"));
@@ -658,7 +689,8 @@ MmcIdentificationMode ( DEBUG ((DEBUG_ERROR, "MmcIdentificationMode() : Failed to receive OCR, Status=%r.\n", Status));
return Status;
}
- ((UINT32 *) &(MmcHostInstance->CardInfo.OCRData))[0] = Response[0];
+
+ ((UINT32 *)&(MmcHostInstance->CardInfo.OCRData))[0] = Response[0];
}
}
@@ -671,6 +703,7 @@ MmcIdentificationMode ( MmcHostInstance->CardInfo.CardType = SD_CARD_2_HIGH;
DEBUG ((DEBUG_ERROR, "High capacity card.\n"));
}
+
break; // The MMC/SD card is ready. Continue the Identification Mode
}
} else {
@@ -697,6 +730,7 @@ MmcIdentificationMode ( DEBUG ((DEBUG_ERROR, "MmcIdentificationMode(MMC_CMD2): Error\n"));
return Status;
}
+
Status = MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_CID, Response);
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "MmcIdentificationMode() : Failed to receive CID, Status=%r.\n", Status));
@@ -728,6 +762,7 @@ MmcIdentificationMode ( DEBUG ((DEBUG_ERROR, "MmcIdentificationMode() : Failed to receive RCA, Status=%r.\n", Status));
return Status;
}
+
PrintRCA (Response[0]);
// For MMC card, RCA is assigned by CMD3 while CMD3 dumps the RCA for SD card
@@ -736,6 +771,7 @@ MmcIdentificationMode ( } else {
MmcHostInstance->CardInfo.RCA = CmdArg;
}
+
Status = MmcNotifyState (MmcHostInstance, MmcStandByState);
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "MmcIdentificationMode() : Error MmcStandByState\n"));
@@ -747,25 +783,25 @@ MmcIdentificationMode ( EFI_STATUS
InitializeMmcDevice (
- IN MMC_HOST_INSTANCE *MmcHostInstance
+ IN MMC_HOST_INSTANCE *MmcHostInstance
)
{
- EFI_STATUS Status;
- EFI_MMC_HOST_PROTOCOL *MmcHost;
- UINTN BlockCount;
+ EFI_STATUS Status;
+ EFI_MMC_HOST_PROTOCOL *MmcHost;
+ UINTN BlockCount;
BlockCount = 1;
- MmcHost = MmcHostInstance->MmcHost;
+ MmcHost = MmcHostInstance->MmcHost;
Status = MmcIdentificationMode (MmcHostInstance);
if (EFI_ERROR (Status)) {
- DEBUG((DEBUG_ERROR, "InitializeMmcDevice(): Error in Identification Mode, Status=%r\n", Status));
+ DEBUG ((DEBUG_ERROR, "InitializeMmcDevice(): Error in Identification Mode, Status=%r\n", Status));
return Status;
}
Status = MmcNotifyState (MmcHostInstance, MmcTransferState);
if (EFI_ERROR (Status)) {
- DEBUG((DEBUG_ERROR, "InitializeMmcDevice(): Error MmcTransferState, Status=%r\n", Status));
+ DEBUG ((DEBUG_ERROR, "InitializeMmcDevice(): Error MmcTransferState, Status=%r\n", Status));
return Status;
}
@@ -774,6 +810,7 @@ InitializeMmcDevice ( } else {
Status = InitializeEmmcDevice (MmcHostInstance);
}
+
if (EFI_ERROR (Status)) {
return Status;
}
@@ -781,8 +818,12 @@ InitializeMmcDevice ( // Set Block Length
Status = MmcHost->SendCommand (MmcHost, MMC_CMD16, MmcHostInstance->BlockIo.Media->BlockSize);
if (EFI_ERROR (Status)) {
- DEBUG((DEBUG_ERROR, "InitializeMmcDevice(MMC_CMD16): Error MmcHostInstance->BlockIo.Media->BlockSize: %d and Error = %r\n",
- MmcHostInstance->BlockIo.Media->BlockSize, Status));
+ DEBUG ((
+ DEBUG_ERROR,
+ "InitializeMmcDevice(MMC_CMD16): Error MmcHostInstance->BlockIo.Media->BlockSize: %d and Error = %r\n",
+ MmcHostInstance->BlockIo.Media->BlockSize,
+ Status
+ ));
return Status;
}
@@ -790,7 +831,7 @@ InitializeMmcDevice ( if (MmcHostInstance->CardInfo.CardType == MMC_CARD) {
Status = MmcHost->SendCommand (MmcHost, MMC_CMD23, BlockCount);
if (EFI_ERROR (Status)) {
- DEBUG((DEBUG_ERROR, "InitializeMmcDevice(MMC_CMD23): Error, Status=%r\n", Status));
+ DEBUG ((DEBUG_ERROR, "InitializeMmcDevice(MMC_CMD23): Error, Status=%r\n", Status));
return Status;
}
}
|