Beispiel #1
0
STATIC
EFI_STATUS
InitializeEmmcDevice (
  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};

  Host  = MmcHostInstance->MmcHost;
  ECSDData = MmcHostInstance->CardInfo.ECSDData;
  if (ECSDData->DEVICE_TYPE == EMMCBACKWARD)
    return EFI_SUCCESS;

  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));
    return Status;
  }

  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:
      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;
}
Beispiel #2
0
STATIC
EFI_STATUS
InitializeSdMmcDevice (
  IN  MMC_HOST_INSTANCE   *MmcHostInstance
  )
{
  UINT32        CmdArg;
  UINT32        Response[4];
  UINT32        Buffer[128];
  UINTN         BlockSize;
  UINTN         CardSize;
  UINTN         NumBlocks;
  BOOLEAN       CccSwitch;
  SCR           Scr;
  EFI_STATUS    Status;
  EFI_MMC_HOST_PROTOCOL     *MmcHost;

  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((EFI_D_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((EFI_D_ERROR, "InitializeSdMmcDevice(): Failed to receive CSD, Status=%r\n", Status));
    return Status;
  }
  PrintCSD (Response);
  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);
    NumBlocks = ((CardSize + 1) * 1024);
    BlockSize = 1 << MMC_CSD_GET_READBLLEN (Response);
  } else {
    CardSize = MMC_CSD_GET_DEVICESIZE (Response);
    NumBlocks = (CardSize + 1) * (1 << (MMC_CSD_GET_DEVICESIZEMULT (Response) + 2));
    BlockSize = 1 << MMC_CSD_GET_READBLLEN (Response);
  }

  // For >=2G card, BlockSize may be 1K, but the transfer size is 512 bytes.
  if (BlockSize > 512) {
    NumBlocks = MultU64x32 (NumBlocks, BlockSize / 512);
    BlockSize = 512;
  }

  MmcHostInstance->BlockIo.Media->LastBlock    = (NumBlocks - 1);
  MmcHostInstance->BlockIo.Media->BlockSize    = BlockSize;
  MmcHostInstance->BlockIo.Media->ReadOnly     = MmcHost->IsReadOnly (MmcHost);
  MmcHostInstance->BlockIo.Media->MediaPresent = TRUE;
  MmcHostInstance->BlockIo.Media->MediaId++;

  CmdArg = MmcHostInstance->CardInfo.RCA << 16;
  Status = MmcHost->SendCommand (MmcHost, MMC_CMD7, CmdArg);
  if (EFI_ERROR (Status)) {
    DEBUG((EFI_D_ERROR, "InitializeSdMmcDevice(MMC_CMD7): Error and Status = %r\n", Status));
    return Status;
  }

  Status = MmcHost->SendCommand (MmcHost, MMC_CMD55, CmdArg);
  if (EFI_ERROR (Status)) {
    DEBUG ((EFI_D_ERROR, "%a(MMC_CMD55): Error and Status = %r\n", Status));
    return Status;
  }
  Status = MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_R1, Response);
  if (EFI_ERROR (Status)) {
    DEBUG ((EFI_D_ERROR, "%a(MMC_CMD55): Error and Status = %r\n", Status));
    return Status;
  }
  if ((Response[0] & MMC_STATUS_APP_CMD) == 0) {
    return EFI_SUCCESS;
  }

  /* SCR */
  Status = MmcHost->SendCommand (MmcHost, MMC_ACMD51, 0);
  if (EFI_ERROR (Status)) {
    DEBUG ((EFI_D_ERROR, "%a(MMC_ACMD51): Error and Status = %r\n", __func__, Status));
    return Status;
  } else {
    Status = MmcHost->ReadBlockData (MmcHost, 0, 8, Buffer);
    if (EFI_ERROR (Status)) {
      DEBUG ((EFI_D_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) {
          DEBUG ((EFI_D_INFO, "Found SD Card for Spec Version 4.xx\n"));
	} else {
          DEBUG ((EFI_D_INFO, "Found SD Card for Spec Version 3.0x\n"));
	}
      } else {
	if (Scr.SD_SPEC4 == 0) {
          DEBUG ((EFI_D_INFO, "Found SD Card for Spec Version 2.0\n"));
	} else {
	  DEBUG ((EFI_D_ERROR, "Found invalid SD Card\n"));
	}
      }
    } else {
      if ((Scr.SD_SPEC3 == 0) && (Scr.SD_SPEC4 == 0)) {
        if (Scr.SD_SPEC == 1) {
	  DEBUG ((EFI_D_INFO, "Found SD Card for Spec Version 1.10\n"));
	} else {
	  DEBUG ((EFI_D_INFO, "Found SD Card for Spec Version 1.0\n"));
	}
      } else {
        DEBUG ((EFI_D_ERROR, "Found invalid SD Card\n"));
      }
    }
  }
  if (CccSwitch) {
    /* SD Switch, Mode:1, Group:0, Value:1 */
    CmdArg = 1 << 31 | 0x00FFFFFF;
    CmdArg &= ~(0xF << (0 * 4));
    CmdArg |= 1 << (0 * 4);
    Status = MmcHost->SendCommand (MmcHost, MMC_CMD6, CmdArg);
    if (EFI_ERROR (Status)) {
      DEBUG ((EFI_D_ERROR, "%a(MMC_CMD6): Error and Status = %r\n", Status));
       return Status;
    } else {
      Status = MmcHost->ReadBlockData (MmcHost, 0, 64, Buffer);
      if (EFI_ERROR (Status)) {
        DEBUG ((EFI_D_ERROR, "%a(MMC_CMD6): ReadBlockData Error and Status = %r\n", Status));
        return Status;
      }
    }
  }
  if (Scr.SD_BUS_WIDTHS & SD_BUS_WIDTH_4BIT) {
    CmdArg = MmcHostInstance->CardInfo.RCA << 16;
    Status = MmcHost->SendCommand (MmcHost, MMC_CMD55, CmdArg);
    if (EFI_ERROR (Status)) {
      DEBUG ((EFI_D_ERROR, "%a(MMC_CMD55): Error and Status = %r\n", Status));
      return Status;
    }
    /* Width: 4 */
    Status = MmcHost->SendCommand (MmcHost, MMC_CMD6, 2);
    if (EFI_ERROR (Status)) {
      DEBUG ((EFI_D_ERROR, "%a(MMC_CMD6): Error and Status = %r\n", Status));
      return Status;
    }
  }
  if (MMC_HOST_HAS_SETIOS(MmcHost)) {
    Status = MmcHost->SetIos (MmcHost, 26 * 1000 * 1000, 4, EMMCBACKWARD);
    if (EFI_ERROR (Status)) {
      DEBUG ((EFI_D_ERROR, "%a(SetIos): Error and Status = %r\n", Status));
      return Status;
    }
  }
  return EFI_SUCCESS;
}
Beispiel #3
0
STATIC
EFI_STATUS
EFIAPI
EmmcIdentificationMode (
  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;

  Host  = MmcHostInstance->MmcHost;
  Media = MmcHostInstance->BlockIo.Media;

  // Fetch card identity register
  Status = Host->SendCommand (Host, MMC_CMD2, 0);
  if (EFI_ERROR (Status)) {
    DEBUG ((EFI_D_ERROR, "EmmcIdentificationMode(): Failed to send CMD2, Status=%r.\n", Status));
    return Status;
  }

  Status = Host->ReceiveResponse (Host, MMC_RESPONSE_TYPE_R2, (UINT32 *)&(MmcHostInstance->CardInfo.CIDData));
  if (EFI_ERROR (Status)) {
    DEBUG ((EFI_D_ERROR, "EmmcIdentificationMode(): CID retrieval error, Status=%r.\n", Status));
    return Status;
  }

  // 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);
  if (EFI_ERROR (Status)) {
    DEBUG ((EFI_D_ERROR, "EmmcIdentificationMode(): RCA set error, Status=%r.\n", Status));
    return Status;
  }

  // Fetch card specific data
  Status = Host->SendCommand (Host, MMC_CMD9, RCA);
  if (EFI_ERROR (Status)) {
    DEBUG ((EFI_D_ERROR, "EmmcIdentificationMode(): Failed to send CMD9, Status=%r.\n", Status));
    return Status;
  }

  Status = Host->ReceiveResponse (Host, MMC_RESPONSE_TYPE_R2, (UINT32 *)&(MmcHostInstance->CardInfo.CSDData));
  if (EFI_ERROR (Status)) {
    DEBUG ((EFI_D_ERROR, "EmmcIdentificationMode(): CSD retrieval error, Status=%r.\n", Status));
    return Status;
  }

  // Select the card
  Status = Host->SendCommand (Host, MMC_CMD7, RCA);
  if (EFI_ERROR (Status)) {
    DEBUG ((EFI_D_ERROR, "EmmcIdentificationMode(): Card selection error, Status=%r.\n", Status));
  }

  if (MMC_HOST_HAS_SETIOS(Host)) {
    // Set 1-bit bus width
    Status = Host->SetIos (Host, 0, 1, EMMCBACKWARD);
    if (EFI_ERROR (Status)) {
      DEBUG ((EFI_D_ERROR, "EmmcIdentificationMode(): Set 1-bit bus width error, Status=%r.\n", Status));
      return Status;
    }

    // Set 1-bit bus width for EXTCSD
    Status = EmmcSetEXTCSD (MmcHostInstance, EXTCSD_BUS_WIDTH, EMMC_BUS_WIDTH_1BIT);
    if (EFI_ERROR (Status)) {
      DEBUG ((EFI_D_ERROR, "EmmcIdentificationMode(): Set extcsd bus width error, Status=%r.\n", Status));
      return Status;
    }
  }

  // Fetch ECSD
  MmcHostInstance->CardInfo.ECSDData = AllocatePages (EFI_SIZE_TO_PAGES (sizeof (ECSD)));
  if (MmcHostInstance->CardInfo.ECSDData == NULL) {
    return EFI_OUT_OF_RESOURCES;
  }
  Status = Host->SendCommand (Host, MMC_CMD8, 0);
  if (EFI_ERROR (Status)) {
    DEBUG ((EFI_D_ERROR, "EmmcIdentificationMode(): ECSD fetch error, Status=%r.\n", Status));
  }

  Status = Host->ReadBlockData (Host, 0, 512, (UINT32 *)MmcHostInstance->CardInfo.ECSDData);
  if (EFI_ERROR (Status)) {
    DEBUG ((EFI_D_ERROR, "EmmcIdentificationMode(): ECSD read error, Status=%r.\n", Status));
    goto FreePageExit;
  }

  // Make sure device exiting data mode
  do {
    Status = EmmcGetDeviceState (MmcHostInstance, &State);
    if (EFI_ERROR (Status)) {
      DEBUG ((EFI_D_ERROR, "EmmcIdentificationMode(): Failed to get device state, Status=%r.\n", Status));
      goto FreePageExit;
    }
  } 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->LogicalBlocksPerPhysicalBlock = 1;
  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.

  // Setup card type
  MmcHostInstance->CardInfo.CardType = EMMC_CARD;
  return EFI_SUCCESS;

FreePageExit:
  FreePages (MmcHostInstance->CardInfo.ECSDData, EFI_SIZE_TO_PAGES (sizeof (ECSD)));
  return Status;
}