/** @file\r
*\r
-* Copyright (c) 2011-2013, ARM Limited. All rights reserved.\r
+* Copyright (c) 2011-2014, ARM Limited. All rights reserved.\r
*\r
* This program and the accompanying materials\r
* are licensed and made available under the terms and conditions of the BSD License\r
\r
#include "Mmc.h"\r
\r
-#define MAX_RETRY_COUNT 1000\r
-#define CMD_RETRY_COUNT 20\r
-\r
EFI_STATUS\r
MmcNotifyState (\r
IN MMC_HOST_INSTANCE *MmcHostInstance,\r
return Status;\r
}\r
\r
-EFI_STATUS\r
-EFIAPI\r
-MmcIdentificationMode (\r
- IN MMC_HOST_INSTANCE *MmcHostInstance\r
- )\r
-{\r
- EFI_STATUS Status;\r
- UINT32 Response[4];\r
- UINTN Timeout;\r
- UINTN CmdArg;\r
- BOOLEAN IsHCS;\r
- EFI_MMC_HOST_PROTOCOL *MmcHost;\r
-\r
- MmcHost = MmcHostInstance->MmcHost;\r
- CmdArg = 0;\r
- IsHCS = FALSE;\r
-\r
- if (MmcHost == NULL) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- // We can get into this function if we restart the identification mode\r
- if (MmcHostInstance->State == MmcHwInitializationState) {\r
- // Initialize the MMC Host HW\r
- Status = MmcNotifyState (MmcHostInstance, MmcHwInitializationState);\r
- if (EFI_ERROR (Status)) {\r
- DEBUG ((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcHwInitializationState\n"));\r
- return Status;\r
- }\r
- }\r
-\r
- Status = MmcHost->SendCommand (MmcHost, MMC_CMD0, 0);\r
- if (EFI_ERROR (Status)) {\r
- DEBUG ((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD0): Error\n"));\r
- return Status;\r
- }\r
-\r
- Status = MmcNotifyState (MmcHostInstance, MmcIdleState);\r
- if (EFI_ERROR (Status)) {\r
- DEBUG ((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcIdleState\n"));\r
- return Status;\r
- }\r
-\r
- // Are we using SDIO ?\r
- Status = MmcHost->SendCommand (MmcHost, MMC_CMD5, 0);\r
- if (Status == EFI_SUCCESS) {\r
- DEBUG ((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD5): Error - SDIO not supported.\n"));\r
- return EFI_UNSUPPORTED;\r
- }\r
-\r
- // Check which kind of card we are using. Ver2.00 or later SD Memory Card (PL180 is SD v1.1)\r
- CmdArg = (0x0UL << 12 | BIT8 | 0xCEUL << 0);\r
- Status = MmcHost->SendCommand (MmcHost, MMC_CMD8, CmdArg);\r
- if (Status == EFI_SUCCESS) {\r
- DEBUG ((EFI_D_ERROR, "Card is SD2.0 => Supports high capacity\n"));\r
- IsHCS = TRUE;\r
- MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_R7, Response);\r
- PrintResponseR1 (Response[0]);\r
- //check if it is valid response\r
- if (Response[0] != CmdArg) {\r
- DEBUG ((EFI_D_ERROR, "The Card is not usable\n"));\r
- return EFI_UNSUPPORTED;\r
- }\r
- } else {\r
- DEBUG ((EFI_D_ERROR, "Not a SD2.0 Card\n"));\r
- }\r
-\r
- // We need to wait for the MMC or SD card is ready => (gCardInfo.OCRData.PowerUp == 1)\r
- Timeout = MAX_RETRY_COUNT;\r
- while (Timeout > 0) {\r
- // SD Card or MMC Card ? CMD55 indicates to the card that the next command is an application specific command\r
- Status = MmcHost->SendCommand (MmcHost, MMC_CMD55, 0);\r
- if (Status == EFI_SUCCESS) {\r
- DEBUG ((EFI_D_INFO, "Card should be SD\n"));\r
- if (IsHCS) {\r
- MmcHostInstance->CardInfo.CardType = SD_CARD_2;\r
- } else {\r
- MmcHostInstance->CardInfo.CardType = SD_CARD;\r
- }\r
-\r
- // Note: The first time CmdArg will be zero\r
- CmdArg = ((UINTN *) &(MmcHostInstance->CardInfo.OCRData))[0];\r
- if (IsHCS) {\r
- CmdArg |= BIT30;\r
- }\r
- Status = MmcHost->SendCommand (MmcHost, MMC_ACMD41, CmdArg);\r
- if (!EFI_ERROR (Status)) {\r
- MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_OCR, Response);\r
- ((UINT32 *) &(MmcHostInstance->CardInfo.OCRData))[0] = Response[0];\r
- }\r
- } else {\r
- DEBUG ((EFI_D_INFO, "Card should be MMC\n"));\r
- MmcHostInstance->CardInfo.CardType = MMC_CARD;\r
-\r
- Status = MmcHost->SendCommand (MmcHost, MMC_CMD1, 0x800000);\r
- if (!EFI_ERROR (Status)) {\r
- MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_OCR, Response);\r
- ((UINT32 *) &(MmcHostInstance->CardInfo.OCRData))[0] = Response[0];\r
- }\r
- }\r
-\r
- if (!EFI_ERROR (Status)) {\r
- if (!MmcHostInstance->CardInfo.OCRData.PowerUp) {\r
- MicroSecondDelay (1);\r
- Timeout--;\r
- } else {\r
- if ((MmcHostInstance->CardInfo.CardType == SD_CARD_2) && (MmcHostInstance->CardInfo.OCRData.AccessMode & BIT1)) {\r
- MmcHostInstance->CardInfo.CardType = SD_CARD_2_HIGH;\r
- DEBUG ((EFI_D_ERROR, "High capacity card.\n"));\r
- }\r
- break; // The MMC/SD card is ready. Continue the Identification Mode\r
- }\r
- } else {\r
- MicroSecondDelay (1);\r
- Timeout--;\r
- }\r
- }\r
-\r
- if (Timeout == 0) {\r
- DEBUG ((EFI_D_ERROR, "MmcIdentificationMode(): No Card\n"));\r
- return EFI_NO_MEDIA;\r
- } else {\r
- PrintOCR (Response[0]);\r
- }\r
-\r
- Status = MmcNotifyState (MmcHostInstance, MmcReadyState);\r
- if (EFI_ERROR (Status)) {\r
- DEBUG ((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcReadyState\n"));\r
- return Status;\r
- }\r
-\r
- Status = MmcHost->SendCommand (MmcHost, MMC_CMD2, 0);\r
- if (EFI_ERROR (Status)) {\r
- DEBUG ((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD2): Error\n"));\r
- return Status;\r
- }\r
- MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_CID, Response);\r
- PrintCID (Response);\r
-\r
- Status = MmcNotifyState (MmcHostInstance, MmcIdentificationState);\r
- if (EFI_ERROR (Status)) {\r
- DEBUG ((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcIdentificationState\n"));\r
- return Status;\r
- }\r
-\r
- //\r
- // Note, SD specifications say that "if the command execution causes a state change, it\r
- // will be visible to the host in the response to the next command"\r
- // The status returned for this CMD3 will be 2 - identification\r
- //\r
- CmdArg = 1;\r
- Status = MmcHost->SendCommand (MmcHost, MMC_CMD3, CmdArg);\r
- if (EFI_ERROR (Status)) {\r
- DEBUG ((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD3): Error\n"));\r
- return Status;\r
- }\r
-\r
- MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_RCA, Response);\r
- PrintRCA (Response[0]);\r
-\r
- // For MMC card, RCA is assigned by CMD3 while CMD3 dumps the RCA for SD card\r
- if (MmcHostInstance->CardInfo.CardType != MMC_CARD) {\r
- MmcHostInstance->CardInfo.RCA = Response[0] >> 16;\r
- } else {\r
- MmcHostInstance->CardInfo.RCA = CmdArg;\r
- }\r
-\r
- Status = MmcNotifyState (MmcHostInstance, MmcStandByState);\r
- if (EFI_ERROR (Status)) {\r
- DEBUG ((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcStandByState\n"));\r
- return Status;\r
- }\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
-EFI_STATUS InitializeMmcDevice (\r
- IN MMC_HOST_INSTANCE *MmcHostInstance\r
- )\r
-{\r
- UINT32 Response[4];\r
- EFI_STATUS Status;\r
- UINTN CardSize, NumBlocks, BlockSize, CmdArg;\r
- EFI_MMC_HOST_PROTOCOL *MmcHost;\r
- UINTN BlockCount;\r
-\r
- BlockCount = 1;\r
- MmcHost = MmcHostInstance->MmcHost;\r
-\r
- MmcIdentificationMode (MmcHostInstance);\r
-\r
- //Send a command to get Card specific data\r
- CmdArg = MmcHostInstance->CardInfo.RCA << 16;\r
- Status = MmcHost->SendCommand (MmcHost, MMC_CMD9, CmdArg);\r
- if (EFI_ERROR (Status)) {\r
- DEBUG((EFI_D_ERROR, "InitializeMmcDevice(MMC_CMD9): Error, Status=%r\n", Status));\r
- return Status;\r
- }\r
- //Read Response\r
- MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_CSD, Response);\r
- PrintCSD (Response);\r
-\r
- if (MmcHostInstance->CardInfo.CardType == SD_CARD_2_HIGH) {\r
- CardSize = HC_MMC_CSD_GET_DEVICESIZE (Response);\r
- NumBlocks = ((CardSize + 1) * 1024);\r
- BlockSize = 1 << MMC_CSD_GET_READBLLEN (Response);\r
- } else {\r
- CardSize = MMC_CSD_GET_DEVICESIZE (Response);\r
- NumBlocks = (CardSize + 1) * (1 << (MMC_CSD_GET_DEVICESIZEMULT (Response) + 2));\r
- BlockSize = 1 << MMC_CSD_GET_READBLLEN (Response);\r
- }\r
-\r
- //For >=2G card, BlockSize may be 1K, but the transfer size is 512 bytes.\r
- if (BlockSize > 512) {\r
- NumBlocks = MultU64x32 (NumBlocks, BlockSize/512);\r
- BlockSize = 512;\r
- }\r
-\r
- MmcHostInstance->BlockIo.Media->LastBlock = (NumBlocks - 1);\r
- MmcHostInstance->BlockIo.Media->BlockSize = BlockSize;\r
- MmcHostInstance->BlockIo.Media->ReadOnly = MmcHost->IsReadOnly (MmcHost);\r
- MmcHostInstance->BlockIo.Media->MediaPresent = TRUE;\r
- MmcHostInstance->BlockIo.Media->MediaId++;\r
-\r
- CmdArg = MmcHostInstance->CardInfo.RCA << 16;\r
- Status = MmcHost->SendCommand (MmcHost, MMC_CMD7, CmdArg);\r
- if (EFI_ERROR (Status)) {\r
- DEBUG((EFI_D_ERROR, "InitializeMmcDevice(MMC_CMD7): Error and Status = %r\n", Status));\r
- return Status;\r
- }\r
-\r
- Status = MmcNotifyState (MmcHostInstance, MmcTransferState);\r
- if (EFI_ERROR (Status)) {\r
- DEBUG((EFI_D_ERROR, "InitializeMmcDevice(): Error MmcTransferState\n"));\r
- return Status;\r
- }\r
-\r
- // Set Block Length\r
- Status = MmcHost->SendCommand (MmcHost, MMC_CMD16, MmcHostInstance->BlockIo.Media->BlockSize);\r
- if (EFI_ERROR (Status)) {\r
- DEBUG((EFI_D_ERROR, "InitializeMmcDevice(MMC_CMD16): Error MmcHostInstance->BlockIo.Media->BlockSize: %d and Error = %r\n",\r
- MmcHostInstance->BlockIo.Media->BlockSize, Status));\r
- return Status;\r
- }\r
-\r
- // Block Count (not used). Could return an error for SD card\r
- if (MmcHostInstance->CardInfo.CardType == MMC_CARD) {\r
- MmcHost->SendCommand (MmcHost, MMC_CMD23, BlockCount);\r
- }\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
EFI_STATUS\r
EFIAPI\r
MmcReset (\r
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