X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=blobdiff_plain;f=ArmPkg%2FUniversal%2FMmcDxe%2FMmcBlockIo.c;fp=ArmPkg%2FUniversal%2FMmcDxe%2FMmcBlockIo.c;h=d8bd2d18b93916489ecad903c293f01a02ba0ea9;hp=0000000000000000000000000000000000000000;hb=1bfda055dfbc52678655ab2ded721f9f7c0cd496;hpb=7373d15a98fb571bf56688676c8ba950e6f62b8d

diff --git a/ArmPkg/Universal/MmcDxe/MmcBlockIo.c b/ArmPkg/Universal/MmcDxe/MmcBlockIo.c
new file mode 100644
index 0000000000..d8bd2d18b9
--- /dev/null
+++ b/ArmPkg/Universal/MmcDxe/MmcBlockIo.c
@@ -0,0 +1,558 @@
+/** @file
+*
+*  Copyright (c) 2011, ARM Limited. All rights reserved.
+*  
+*  This program and the accompanying materials                          
+*  are licensed and made available under the terms and conditions of the BSD License         
+*  which accompanies this distribution.  The full text of the license may be found at        
+*  http://opensource.org/licenses/bsd-license.php                                            
+*
+*  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+*  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+*
+**/
+
+#include <Protocol/MmcHost.h>
+#include <Library/DebugLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/TimerLib.h>
+
+#include "Mmc.h"
+
+// Untested ...
+//#define USE_STREAM
+
+#define MAX_RETRY_COUNT  200
+
+EFI_STATUS
+MmcNotifyState (
+  MMC_HOST_INSTANCE *MmcHostInstance,
+  MMC_STATE State
+  ) {
+    MmcHostInstance->State = State;
+    return MmcHostInstance->MmcHost->NotifyState(State);
+}
+
+VOID PrintOCR(UINT32 ocr) {
+    float minv, maxv, volts;
+    int loop;
+
+    minv  = 3.6;
+    maxv  = 2.0;
+    volts = 2.0;
+
+    // The MMC register bits [23:8] indicate the working range of the card
+    for (loop = 8; loop < 24; loop++) {
+        if (ocr & (1 << loop)) {
+            if (minv > volts) minv = volts;
+            if (maxv < volts) maxv = volts + 0.1;
+        }
+        volts = volts + 0.1;
+    }
+
+    DEBUG((EFI_D_ERROR, "- PrintOCR ocr (0x%X)\n",ocr));
+    //DEBUG((EFI_D_ERROR, "\t- Card operating voltage: %fV to %fV\n", minv, maxv));
+    if (((ocr >> 29) & 3) == 0)
+        DEBUG((EFI_D_ERROR, "\t- AccessMode: Byte Mode\n"));
+    else
+        DEBUG((EFI_D_ERROR, "\t- AccessMode: Block Mode (0x%X)\n",((ocr >> 29) & 3)));
+
+    if (ocr & MMC_OCR_POWERUP)
+        DEBUG((EFI_D_ERROR, "\t- PowerUp\n"));
+    else
+        DEBUG((EFI_D_ERROR, "\t- Voltage Not Supported\n"));
+}
+
+VOID PrintCID(UINT32* cid) {
+    DEBUG((EFI_D_ERROR, "- PrintCID\n"));
+    DEBUG((EFI_D_ERROR, "\t- Manufacturing date: %d/%d\n",(cid[0] >> 8) & 0xF,(cid[0] >> 12) & 0xFF));
+    DEBUG((EFI_D_ERROR, "\t- Product serial number: 0x%X%X\n",cid[1] & 0xFFFFFF,(cid[0] >> 24) & 0xFF));
+    DEBUG((EFI_D_ERROR, "\t- Product revision: %d\n",cid[1] >> 24));
+    //DEBUG((EFI_D_ERROR, "\t- Product name: %s\n",(char*)(cid + 2)));
+    DEBUG((EFI_D_ERROR, "\t- OEM ID: %c%c\n",(cid[3] >> 8) & 0xFF,(cid[3] >> 16) & 0xFF));
+}
+
+VOID PrintCSD(UINT32* csd) {
+    UINTN val32;
+    CONST CHAR8* str_unit[] = { "100kbit/s","1Mbit/s","10Mbit/s","100MBit/s","Unkbown","Unkbown","Unkbown","Unkbown" };
+    CONST CHAR8* str_value[] = { "1.0","1.2","1.3","1.5","2.0","2.5","3.0","3.5","4.0","4.5","5.0","Unknown","Unknown","Unknown","Unknown" };
+
+    if (((csd[2] >> 30) & 0x3) == 0)
+        DEBUG((EFI_D_ERROR, "- PrintCSD Version 1.01-1.10/Version 2.00/Standard Capacity\n"));
+    else if (((csd[2] >> 30) & 0x3) == 1)
+        DEBUG((EFI_D_ERROR, "- PrintCSD Version 2.00/High Capacity\n"));
+    else
+        DEBUG((EFI_D_ERROR, "- PrintCSD Version Higher than v3.3\n"));
+
+    DEBUG((EFI_D_ERROR, "\t- Supported card command class: 0x%X\n",MMC_CSD_GET_CCC(csd)));
+    DEBUG((EFI_D_ERROR, "\t- Speed: %a %a\n",str_value[(MMC_CSD_GET_TRANSPEED(csd) >> 3) & 0xF],str_unit[MMC_CSD_GET_TRANSPEED(csd) & 7]));
+    DEBUG((EFI_D_ERROR, "\t- Maximum Read Data Block: %d\n",2 << (MMC_CSD_GET_READBLLEN(csd)-1)));
+    DEBUG((EFI_D_ERROR, "\t- Maximum Write Data Block: %d\n",2 << (MMC_CSD_GET_WRITEBLLEN(csd)-1)));
+    
+    if (!MMC_CSD_GET_FILEFORMATGRP(csd)) {
+        val32 = MMC_CSD_GET_FILEFORMAT(csd);
+        if (val32 == 0)         DEBUG((EFI_D_ERROR, "\t- Format(0): Hard disk-like file system with partition table\n"));
+        else if (val32 == 1)    DEBUG((EFI_D_ERROR, "\t- Format(1): DOS FAT (floppy-like) with boot sector only (no partition table)\n"));
+        else if (val32 == 2)    DEBUG((EFI_D_ERROR, "\t- Format(2): Universal File Format\n"));
+        else                    DEBUG((EFI_D_ERROR, "\t- Format(3): Others/Unknown\n"));
+    } else {
+        DEBUG((EFI_D_ERROR, "\t- Format: Reserved\n"));
+    }
+}
+
+VOID PrintRCA(UINT32 rca) {
+    DEBUG((EFI_D_ERROR, "- PrintRCA: 0x%X\n",rca));
+    DEBUG((EFI_D_ERROR, "\t- Status: 0x%X\n",rca & 0xFFFF));
+    DEBUG((EFI_D_ERROR, "\t- RCA: 0x%X\n",(rca >> 16) & 0xFFFF));
+}
+
+VOID PrintResponseR1(UINT32 response) {
+    DEBUG((EFI_D_ERROR, "Response: 0x%X\n",response));
+    if (response & (1 << 8))                 DEBUG((EFI_D_ERROR, "\t- READY_FOR_DATA\n"));
+
+    if (((response >> 9) & 0xF) == 0)         DEBUG((EFI_D_ERROR, "\t- State: Idle\n"));
+    else if (((response >> 9) & 0xF) == 1)    DEBUG((EFI_D_ERROR, "\t- State: Ready\n"));
+    else if (((response >> 9) & 0xF) == 2)    DEBUG((EFI_D_ERROR, "\t- State: Ident\n"));
+    else if (((response >> 9) & 0xF) == 3)    DEBUG((EFI_D_ERROR, "\t- State: StandBy\n"));
+    else if (((response >> 9) & 0xF) == 4)    DEBUG((EFI_D_ERROR, "\t- State: Tran\n"));
+    else if (((response >> 9) & 0xF) == 5)    DEBUG((EFI_D_ERROR, "\t- State: Data\n"));
+    else if (((response >> 9) & 0xF) == 6)    DEBUG((EFI_D_ERROR, "\t- State: Rcv\n"));
+    else if (((response >> 9) & 0xF) == 7)    DEBUG((EFI_D_ERROR, "\t- State: Prg\n"));
+    else if (((response >> 9) & 0xF) == 8)    DEBUG((EFI_D_ERROR, "\t- State: Dis\n"));
+    else                                     DEBUG((EFI_D_ERROR, "\t- State: Reserved\n"));
+}
+
+EFI_STATUS
+EFIAPI
+MmcIdentificationMode (
+  MMC_HOST_INSTANCE     *MmcHostInstance
+  ) {
+    EFI_STATUS              Status;
+    UINT32                  Response[4];
+    UINTN                   timer;
+    UINTN                   CmdArg;
+    BOOLEAN                 bHCS;
+    EFI_MMC_HOST_PROTOCOL   *MmcHost;
+    
+    MmcHost = MmcHostInstance->MmcHost;
+    CmdArg = 0;
+    bHCS = FALSE;
+
+    if (MmcHost == NULL) {
+        return EFI_INVALID_PARAMETER;
+    }
+
+    // We can get into this function if we restart the identification mode
+    if (MmcHostInstance->State == MmcHwInitializationState) {
+        // Initialize the MMC Host HW
+        Status = MmcNotifyState (MmcHostInstance, MmcHwInitializationState);
+        if (EFI_ERROR(Status)) {
+            DEBUG((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcHwInitializationState\n"));
+            return Status;
+        }
+    } else {
+        //Note: Could even be used in all cases. But it looks this command could put the state machine into inactive for some cards
+        Status = MmcHost->SendCommand(MMC_CMD0, 0);
+        if (EFI_ERROR(Status)) {
+            DEBUG((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD0): Error\n"));
+            return Status;
+        }
+    }
+
+    Status = MmcNotifyState (MmcHostInstance, MmcIdleState);
+    if (EFI_ERROR(Status)) {
+        DEBUG((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcIdleState\n"));
+        return Status;
+    }
+
+    // Are we using SDIO ?
+    Status = MmcHost->SendCommand(MMC_CMD5, 0);
+    if (Status == EFI_SUCCESS) {
+        DEBUG((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD5): Error - SDIO not supported.\n"));
+        return EFI_UNSUPPORTED;
+    }
+
+    // Check which kind of card we are using. Ver2.00 or later SD Memory Card (PL180 is SD v1.1)
+    CmdArg = (0x0UL << 12 | BIT8 | 0xCEUL << 0);
+    Status = MmcHost->SendCommand(MMC_CMD8, CmdArg);
+    if (Status == EFI_SUCCESS) {
+        DEBUG ((EFI_D_ERROR, "Card is SD2.0 => Supports high capacity\n"));
+        bHCS = TRUE;
+        MmcHost->ReceiveResponse(MMC_RESPONSE_TYPE_R7,Response);
+        PrintResponseR1(Response[0]);
+    } else {
+        DEBUG ((EFI_D_ERROR, "Not a SD2.0 Card\n"));
+    }
+
+    // We need to wait for the MMC or SD card is ready => (gCardInfo.OCRData.Busy == 1)
+    timer = MAX_RETRY_COUNT;
+    while (timer > 0) {
+        // SD Card or MMC Card ? CMD55 indicates to the card that the next command is an application specific command
+        Status = MmcHost->SendCommand(MMC_CMD55, 0);
+        if (Status == EFI_SUCCESS) {
+            DEBUG ((EFI_D_INFO, "Card should be SD\n"));
+            if (bHCS) {
+                MmcHostInstance->CardInfo.CardType = SD_CARD_2;
+            } else {
+                MmcHostInstance->CardInfo.CardType = SD_CARD;
+            }
+
+            // Note: The first time CmdArg will be zero
+            CmdArg = ((UINTN *) &(MmcHostInstance->CardInfo.OCRData))[0];
+            if (bHCS) {
+                CmdArg |= BIT30;
+            }
+            Status = MmcHost->SendCommand(MMC_ACMD41, CmdArg);
+            if (EFI_ERROR(Status)) {
+                DEBUG((EFI_D_ERROR, "MmcIdentificationMode(ACMD41): Error\n"));
+                return Status;
+            }
+            MmcHost->ReceiveResponse(MMC_RESPONSE_TYPE_OCR,Response);
+            ((UINT32 *) &(MmcHostInstance->CardInfo.OCRData))[0] = Response[0];
+        } else {
+            DEBUG ((EFI_D_INFO, "Card should be MMC\n"));
+            MmcHostInstance->CardInfo.CardType = MMC_CARD;
+
+            Status = MmcHost->SendCommand(MMC_CMD1, 0x800000);
+            if (EFI_ERROR(Status)) {
+                DEBUG((EFI_D_ERROR, "MmcIdentificationMode(ACMD41): Error\n"));
+                return Status;
+            }
+            MmcHost->ReceiveResponse(MMC_RESPONSE_TYPE_OCR,Response);
+            ((UINT32 *) &(MmcHostInstance->CardInfo.OCRData))[0] = Response[0];
+        }
+
+        if (MmcHostInstance->CardInfo.OCRData.Busy == 0) {
+            MicroSecondDelay(10*1000);
+            timer--;
+        } else {
+            if ((MmcHostInstance->CardInfo.CardType == SD_CARD_2) && (MmcHostInstance->CardInfo.OCRData.AccessMode & BIT1)) {
+                MmcHostInstance->CardInfo.CardType = SD_CARD_2_HIGH;
+                DEBUG ((EFI_D_ERROR, "High capacity card.\n"));
+            }
+            break;  // The MMC/SD card is ready. Continue the Identification Mode
+        }
+    }
+
+    if (timer == 0) {
+        DEBUG((EFI_D_ERROR, "MmcIdentificationMode(): No Card\n"));
+        ASSERT(0);
+        return EFI_NO_MEDIA;
+    } else {
+        PrintOCR(Response[0]);
+    }
+
+    Status = MmcNotifyState (MmcHostInstance, MmcReadyState);
+    if (EFI_ERROR(Status)) {
+        DEBUG((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcReadyState\n"));
+        return Status;
+    }
+
+    Status = MmcHost->SendCommand(MMC_CMD2, 0);
+    if (EFI_ERROR(Status)) {
+        DEBUG((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD2): Error\n"));
+        ASSERT(0);
+        return Status;
+    }
+    MmcHost->ReceiveResponse(MMC_RESPONSE_TYPE_CID,Response);
+    PrintCID(Response);
+
+    Status = MmcNotifyState (MmcHostInstance, MmcIdentificationState);
+    if (EFI_ERROR(Status)) {
+        DEBUG((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcIdentificationState\n"));
+        return Status;
+    }
+
+    CmdArg = 0;
+    Status = MmcHost->SendCommand(MMC_CMD3, CmdArg);
+    if (EFI_ERROR(Status)) {
+        DEBUG((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD3): Error\n"));
+        return Status;
+    }
+    MmcHost->ReceiveResponse(MMC_RESPONSE_TYPE_RCA,Response);
+    PrintRCA(Response[0]);
+
+    // For MMC card, RCA is assigned by CMD3 while CMD3 dumps the RCA for SD card
+    if (MmcHostInstance->CardInfo.CardType != MMC_CARD) {
+        MmcHostInstance->CardInfo.RCA = Response[0] >> 16;
+    } else {
+        MmcHostInstance->CardInfo.RCA = CmdArg;
+    }
+
+    Status = MmcNotifyState (MmcHostInstance, MmcStandByState);
+    if (EFI_ERROR(Status)) {
+        DEBUG((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcStandByState\n"));
+        return Status;
+    }
+
+    return EFI_SUCCESS;
+}
+
+EFI_STATUS
+EFIAPI
+MmcReset (
+  IN EFI_BLOCK_IO_PROTOCOL    *This,
+  IN BOOLEAN                  ExtendedVerification
+  ) {
+    // Implement me. Either send a CMD0 (could not work for some MMC host) or just turn off/turn
+    //      on power and restart Identification mode
+    return EFI_SUCCESS;
+}
+
+EFI_STATUS
+MmcDetectCard (
+  EFI_MMC_HOST_PROTOCOL     *MmcHost
+  )
+{
+    if (!MmcHost->IsCardPresent()) {
+        return EFI_NO_MEDIA;
+    } else {
+        return EFI_SUCCESS;
+    }
+}
+
+#define MMCI0_BLOCKLEN 512
+#define MMCI0_TIMEOUT  10000
+
+EFI_STATUS MmcIoBlocks (
+  IN EFI_BLOCK_IO_PROTOCOL    *This,
+  IN UINTN                    Transfer,
+  IN UINT32                   MediaId,
+  IN EFI_LBA                  Lba,
+  IN UINTN                    BufferSize,
+  OUT VOID                    *Buffer
+  ) {
+    UINT32                  Response[4];
+    EFI_STATUS              Status;
+    UINTN                   CardSize, NumBlocks, BlockSize, CmdArg;
+    UINTN                   timer;
+    UINTN                   Cmd;
+    MMC_HOST_INSTANCE       *MmcHostInstance;
+    EFI_MMC_HOST_PROTOCOL   *MmcHost;
+    UINTN                   BytesRemainingToBeTransfered;
+    UINTN                   BlockCount = 1;
+
+    MmcHostInstance = MMC_HOST_INSTANCE_FROM_BLOCK_IO_THIS(This);
+    ASSERT(MmcHostInstance != 0);
+    MmcHost = MmcHostInstance->MmcHost;
+    ASSERT(MmcHost);
+
+    if (MmcHost == 0) {
+        return EFI_INVALID_PARAMETER;
+    }
+
+    // Check if a Card is Present
+    if (!MmcHost->IsCardPresent()) {
+        MmcHostInstance->BlockIo.Media->MediaPresent = FALSE;
+        MmcHostInstance->BlockIo.Media->LastBlock    = 0;
+        MmcHostInstance->BlockIo.Media->BlockSize    = 512;  // Should be zero but there is a bug in DiskIo
+        MmcHostInstance->BlockIo.Media->ReadOnly     = FALSE; 
+        return EFI_NO_MEDIA;
+    }
+
+    // If the driver has not been initialized yet then go into Iddentification Mode
+    if (MmcHostInstance->State == MmcHwInitializationState) {
+        MmcIdentificationMode (MmcHostInstance);
+
+        CmdArg = MmcHostInstance->CardInfo.RCA << 16;
+        Status = MmcHost->SendCommand(MMC_CMD9, CmdArg);
+        if (EFI_ERROR(Status)) {
+            DEBUG((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD9): Error\n"));
+            ASSERT(0);
+            return Status;
+        }
+        MmcHost->ReceiveResponse(MMC_RESPONSE_TYPE_CSD,Response);
+        PrintCSD(Response);
+
+
+        if (MmcHostInstance->CardInfo.CardType == SD_CARD_2_HIGH) {
+            ASSERT(0);  //TODO: Implementation needed
+            CardSize = 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();
+        MmcHostInstance->BlockIo.Media->MediaPresent = TRUE; 
+        MmcHostInstance->BlockIo.Media->MediaId++; 
+
+        CmdArg = MmcHostInstance->CardInfo.RCA << 16;
+        Status = MmcHost->SendCommand(MMC_CMD7, CmdArg);
+        if (EFI_ERROR(Status)) {
+            DEBUG((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD7): Error\n"));
+            ASSERT(0);
+            return Status;
+        }
+        
+        Status = MmcNotifyState (MmcHostInstance, MmcTransferState);
+        if (EFI_ERROR(Status)) {
+            DEBUG((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcTransferState\n"));
+            return Status;
+        }
+    } else {
+        // Maybe test if the card has changed to update gMmcMedia information
+        if (MmcHostInstance->State == MmcTransferState) {
+            //DEBUG((EFI_D_ERROR, "MmcIdentificationMode() : MmcTransferState\n"));
+        } else if (MmcHostInstance->State == MmcStandByState) {
+            DEBUG((EFI_D_ERROR, "MmcIdentificationMode() : MmcStandByState\n"));
+        } else {
+            ASSERT(0);
+        }
+    }
+
+    if (Lba > This->Media->LastBlock) {
+        ASSERT(0);
+        return EFI_INVALID_PARAMETER;
+    }
+  
+    if ((BufferSize % This->Media->BlockSize) != 0) {
+        ASSERT(0);
+        return EFI_BAD_BUFFER_SIZE;
+    }
+
+    BytesRemainingToBeTransfered = BufferSize;
+    while (BytesRemainingToBeTransfered > 0) {
+        // Set Block Length
+        Status = MmcHost->SendCommand(MMC_CMD16, This->Media->BlockSize);
+        if (EFI_ERROR(Status)) {
+            DEBUG((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD16): Error This->Media->BlockSize:%d\n",This->Media->BlockSize));
+            ASSERT(0);
+            return Status;
+        }
+
+        // Block Count (not used). Could return an error for SD card
+        MmcHost->SendCommand(MMC_CMD23, BlockCount);
+
+        //Set command argument based on the card access mode (Byte mode or Block mode)
+        if (MmcHostInstance->CardInfo.OCRData.AccessMode & BIT1) {
+            CmdArg = Lba;
+        } else {
+            CmdArg = Lba * This->Media->BlockSize;
+        }
+
+        if (Transfer == MMC_IOBLOCKS_READ) {
+#ifndef USE_STREAM
+            // Read a single block
+            Cmd = MMC_CMD17;
+#else
+            //TODO: Should we support read stream (MMC_CMD11)
+#endif
+        } else {
+#ifndef USE_STREAM
+            // Write a single block
+            Cmd = MMC_CMD24;
+#else
+            //TODO: Should we support write stream (MMC_CMD20)
+#endif
+        }
+        Status = MmcHost->SendCommand(Cmd, CmdArg);
+        if (EFI_ERROR(Status)) {
+            DEBUG((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD%d): Error\n",Cmd));
+            ASSERT(0);
+            return Status;
+        }
+
+        if (Transfer == MMC_IOBLOCKS_READ) {
+#ifndef USE_STREAM
+            // Read one block of Data
+            Status = MmcHost->ReadBlockData(Lba,This->Media->BlockSize,Buffer);
+            if (EFI_ERROR(Status)) {
+                DEBUG((EFI_D_BLKIO, "MmcIdentificationMode(): Error Read Block Data"));
+                ASSERT(0);
+                return Status;
+            }
+#else
+            //TODO: Read a steam
+            ASSERT(0);
+#endif
+            Status = MmcNotifyState (MmcHostInstance, MmcProgrammingState);
+            if (EFI_ERROR(Status)) {
+                DEBUG((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcProgrammingState\n"));
+                return Status;
+            }
+        } else {
+#ifndef USE_STREAM
+            // Write one block of Data
+            Status = MmcHost->WriteBlockData(Lba,This->Media->BlockSize,Buffer);
+            if (EFI_ERROR(Status)) {
+                DEBUG((EFI_D_BLKIO, "MmcIdentificationMode(): Error Write Block Data"));
+                ASSERT(0);
+                return Status;
+            }
+#else
+            //TODO: Write a steam
+            ASSERT(0);
+#endif
+        }
+
+        // Command 12 - Stop transmission (ends read)
+        Status = MmcHost->SendCommand(MMC_CMD12, 0);
+        MmcHost->ReceiveResponse(MMC_RESPONSE_TYPE_R1b,Response);
+
+        // Command 13 - Read status and wait for programming to complete (return to tran)
+        timer = MMCI0_TIMEOUT;
+        while ((MMC_R0_CURRENTSTATE(Response) != MMC_R0_STATE_TRAN) && timer) {
+            MmcHost->SendCommand(MMC_CMD13, 0);
+            MmcHost->ReceiveResponse(MMC_RESPONSE_TYPE_R1,Response);
+            NanoSecondDelay(100);
+            timer--;
+        }
+
+        Status = MmcNotifyState (MmcHostInstance, MmcTransferState);
+        if (EFI_ERROR(Status)) {
+            DEBUG((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcTransferState\n"));
+            return Status;
+        }
+
+        BytesRemainingToBeTransfered -= This->Media->BlockSize;
+        Lba    += BlockCount;
+        Buffer = (UINT8 *)Buffer + This->Media->BlockSize;
+    }
+
+    return EFI_SUCCESS;
+}
+
+EFI_STATUS
+EFIAPI
+MmcReadBlocks (
+  IN EFI_BLOCK_IO_PROTOCOL    *This,
+  IN UINT32                   MediaId,
+  IN EFI_LBA                  Lba,
+  IN UINTN                    BufferSize,
+  OUT VOID                    *Buffer
+  ) {
+    return MmcIoBlocks (This, MMC_IOBLOCKS_READ, MediaId, Lba, BufferSize, Buffer);
+}
+
+EFI_STATUS
+EFIAPI
+MmcWriteBlocks (
+  IN EFI_BLOCK_IO_PROTOCOL    *This,
+  IN UINT32                   MediaId,
+  IN EFI_LBA                  Lba,
+  IN UINTN                    BufferSize,
+  IN VOID                     *Buffer
+  ) {
+    return MmcIoBlocks (This, MMC_IOBLOCKS_WRITE, MediaId, Lba, BufferSize, Buffer);
+}
+
+EFI_STATUS
+EFIAPI
+MmcFlushBlocks (
+  IN EFI_BLOCK_IO_PROTOCOL  *This
+  ) {
+    return EFI_SUCCESS;
+}
+