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MmcDxe: Adding eMMC support 

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Olivier Martin <olivier.martin@arm.com>



git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15074 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Olivier Martin 2014-01-09 19:06:25 +00:00 committed by oliviermartin
parent 4f67c7ffa1
commit b4fdedc254
5 changed files with 476 additions and 263 deletions
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6
EmbeddedPkg/Include/Protocol/MmcHost.h
View File

@ -1,7 +1,7 @@
/** @file
Definition of the MMC Host Protocol
Copyright (c) 2011, ARM Limited. All rights reserved.
Copyright (c) 2011-2014, 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
@ -64,6 +64,10 @@ typedef UINT32 MMC_CMD;
#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)
// 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
typedef enum _MMC_STATE {
MmcInvalidState = 0,
MmcHwInitializationState,

14
EmbeddedPkg/Universal/MmcDxe/Mmc.h
View File

@ -1,7 +1,7 @@
/** @file
Main Header file for the MMC DXE driver
Copyright (c) 2011-2013, ARM Limited. All rights reserved.
Copyright (c) 2011-2014, 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
@ -58,6 +58,7 @@ typedef enum {
UNKNOWN_CARD,
MMC_CARD, //MMC card
MMC_CARD_HIGH, //MMC Card with High capacity
EMMC_CARD, //eMMC 4.41 card
SD_CARD, //SD 1.1 card
SD_CARD_2, //SD 2.0 or above standard card
SD_CARD_2_HIGH //SD 2.0 or above high capacity card
@ -289,8 +290,15 @@ MmcFlushBlocks (
IN EFI_BLOCK_IO_PROTOCOL *This
);
EFI_STATUS InitializeMmcDevice (
IN MMC_HOST_INSTANCE *MmcHost
EFI_STATUS
MmcNotifyState (
IN MMC_HOST_INSTANCE *MmcHostInstance,
IN MMC_STATE State
);
EFI_STATUS
InitializeMmcDevice (
IN MMC_HOST_INSTANCE *MmcHost
);
VOID

258
EmbeddedPkg/Universal/MmcDxe/MmcBlockIo.c
View File

@ -1,6 +1,6 @@
/** @file
*
* Copyright (c) 2011-2013, ARM Limited. All rights reserved.
* Copyright (c) 2011-2014, 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
@ -17,9 +17,6 @@
#include "Mmc.h"
#define MAX_RETRY_COUNT 1000
#define CMD_RETRY_COUNT 20
EFI_STATUS
MmcNotifyState (
IN MMC_HOST_INSTANCE *MmcHostInstance,
@ -65,259 +62,6 @@ MmcGetCardStatus (
return Status;
}
EFI_STATUS
EFIAPI
MmcIdentificationMode (
IN MMC_HOST_INSTANCE *MmcHostInstance
)
{
EFI_STATUS Status;
UINT32 Response[4];
UINTN Timeout;
UINTN CmdArg;
BOOLEAN IsHCS;
EFI_MMC_HOST_PROTOCOL *MmcHost;
MmcHost = MmcHostInstance->MmcHost;
CmdArg = 0;
IsHCS = 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;
}
}
Status = MmcHost->SendCommand (MmcHost, 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 (MmcHost, 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 (MmcHost, MMC_CMD8, CmdArg);
if (Status == EFI_SUCCESS) {
DEBUG ((EFI_D_ERROR, "Card is SD2.0 => Supports high capacity\n"));
IsHCS = TRUE;
MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_R7, Response);
PrintResponseR1 (Response[0]);
//check if it is valid response
if (Response[0] != CmdArg) {
DEBUG ((EFI_D_ERROR, "The Card is not usable\n"));
return EFI_UNSUPPORTED;
}
} 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.PowerUp == 1)
Timeout = MAX_RETRY_COUNT;
while (Timeout > 0) {
// SD Card or MMC Card ? CMD55 indicates to the card that the next command is an application specific command
Status = MmcHost->SendCommand (MmcHost, MMC_CMD55, 0);
if (Status == EFI_SUCCESS) {
DEBUG ((EFI_D_INFO, "Card should be SD\n"));
if (IsHCS) {
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 (IsHCS) {
CmdArg |= BIT30;
}
Status = MmcHost->SendCommand (MmcHost, MMC_ACMD41, CmdArg);
if (!EFI_ERROR (Status)) {
MmcHost->ReceiveResponse (MmcHost, 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 (MmcHost, MMC_CMD1, 0x800000);
if (!EFI_ERROR (Status)) {
MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_OCR, Response);
((UINT32 *) &(MmcHostInstance->CardInfo.OCRData))[0] = Response[0];
}
}
if (!EFI_ERROR (Status)) {
if (!MmcHostInstance->CardInfo.OCRData.PowerUp) {
MicroSecondDelay (1);
Timeout--;
} 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
}
} else {
MicroSecondDelay (1);
Timeout--;
}
}
if (Timeout == 0) {
DEBUG ((EFI_D_ERROR, "MmcIdentificationMode(): No Card\n"));
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 (MmcHost, MMC_CMD2, 0);
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD2): Error\n"));
return Status;
}
MmcHost->ReceiveResponse (MmcHost, 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;
}
//
// Note, SD specifications say that "if the command execution causes a state change, it
// will be visible to the host in the response to the next command"
// The status returned for this CMD3 will be 2 - identification
//
CmdArg = 1;
Status = MmcHost->SendCommand (MmcHost, MMC_CMD3, CmdArg);
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD3): Error\n"));
return Status;
}
MmcHost->ReceiveResponse (MmcHost, 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 InitializeMmcDevice (
IN MMC_HOST_INSTANCE *MmcHostInstance
)
{
UINT32 Response[4];
EFI_STATUS Status;
UINTN CardSize, NumBlocks, BlockSize, CmdArg;
EFI_MMC_HOST_PROTOCOL *MmcHost;
UINTN BlockCount;
BlockCount = 1;
MmcHost = MmcHostInstance->MmcHost;
MmcIdentificationMode (MmcHostInstance);
//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, "InitializeMmcDevice(MMC_CMD9): Error, Status=%r\n", Status));
return Status;
}
//Read Response
MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_CSD, Response);
PrintCSD (Response);
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, "InitializeMmcDevice(MMC_CMD7): Error and Status = %r\n", Status));
return Status;
}
Status = MmcNotifyState (MmcHostInstance, MmcTransferState);
if (EFI_ERROR (Status)) {
DEBUG((EFI_D_ERROR, "InitializeMmcDevice(): Error MmcTransferState\n"));
return Status;
}
// Set Block Length
Status = MmcHost->SendCommand (MmcHost, MMC_CMD16, MmcHostInstance->BlockIo.Media->BlockSize);
if (EFI_ERROR (Status)) {
DEBUG((EFI_D_ERROR, "InitializeMmcDevice(MMC_CMD16): Error MmcHostInstance->BlockIo.Media->BlockSize: %d and Error = %r\n",
MmcHostInstance->BlockIo.Media->BlockSize, Status));
return Status;
}
// Block Count (not used). Could return an error for SD card
if (MmcHostInstance->CardInfo.CardType == MMC_CARD) {
MmcHost->SendCommand (MmcHost, MMC_CMD23, BlockCount);
}
return EFI_SUCCESS;
}
EFI_STATUS
EFIAPI
MmcReset (

5
EmbeddedPkg/Universal/MmcDxe/MmcDxe.inf
View File

@ -1,7 +1,7 @@
#/** @file
# Build file for the MMC DXE driver
#
# Copyright (c) 2011-2013, ARM Limited. All rights reserved.
# Copyright (c) 2011-2014, 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
@ -26,6 +26,7 @@
ComponentName.c
Mmc.c
MmcBlockIo.c
MmcIdentification.c
MmcDebug.c
Diagnostics.c
@ -48,4 +49,4 @@
gEfiDriverDiagnostics2ProtocolGuid
[Depex]
TRUE
TRUE

456
EmbeddedPkg/Universal/MmcDxe/MmcIdentification.c Normal file
View File

@ -0,0 +1,456 @@
/** @file
*
* Copyright (c) 2011-2014, 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 <Library/TimerLib.h>
#include "Mmc.h"
typedef union {
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
UINT32 mEmmcRcaCount = 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;
UINT32 RCA;
UINT32 ECSD[128];
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));
}
// Fetch ECSD
Status = Host->SendCommand (Host, MMC_CMD8, RCA);
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_ERROR, "EmmcIdentificationMode(): ECSD fetch error, Status=%r.\n", Status));
}
Status = Host->ReadBlockData (Host, 0, 512, ECSD);
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_ERROR, "EmmcIdentificationMode(): ECSD read error, Status=%r.\n", Status));
return Status;
}
// 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 = ECSD[EMMC_ECSD_SIZE_OFFSET] - 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;
}
STATIC
EFI_STATUS
InitializeSdMmcDevice (
IN MMC_HOST_INSTANCE *MmcHostInstance
)
{
UINT32 CmdArg;
UINT32 Response[4];
UINTN BlockSize;
UINTN CardSize;
UINTN NumBlocks;
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 (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;
}
return EFI_SUCCESS;
}
STATIC
EFI_STATUS
EFIAPI
MmcIdentificationMode (
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;
MmcHost = MmcHostInstance->MmcHost;
CmdArg = 0;
IsHCS = 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, Status=%r.\n", Status));
return Status;
}
}
Status = MmcHost->SendCommand (MmcHost, MMC_CMD0, 0);
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD0): Error, Status=%r.\n", Status));
return Status;
}
Status = MmcNotifyState (MmcHostInstance, MmcIdleState);
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcIdleState, Status=%r.\n", Status));
return Status;
}
// Send CMD1 to get OCR (SD / MMC)
Status = MmcHost->SendCommand (MmcHost, MMC_CMD1, EMMC_CMD1_CAPACITY_GREATER_THAN_2GB);
if (Status == EFI_SUCCESS) {
Status = MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_OCR, (UINT32 *)&OcrResponse);
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_ERROR, "MmcIdentificationMode() : Failed to receive OCR, Status=%r.\n", Status));
return Status;
}
if (!OcrResponse.Ocr.PowerUp) {
DEBUG ((EFI_D_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 {
MmcHostInstance->CardInfo.OCRData.AccessMode = 0x0;
}
if (OcrResponse.Raw == EMMC_CMD1_CAPACITY_GREATER_THAN_2GB ||
OcrResponse.Raw == EMMC_CMD1_CAPACITY_LESS_THAN_2GB) {
return EmmcIdentificationMode (MmcHostInstance, OcrResponse);
}
} else {
DEBUG ((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD1) : Failed to send command, Status=%r.\n", Status));
return Status;
}
// Are we using SDIO ?
Status = MmcHost->SendCommand (MmcHost, MMC_CMD5, 0);
if (Status == EFI_SUCCESS) {
DEBUG ((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD5): Error - SDIO not supported, Status=%r.\n", Status));
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 (MmcHost, MMC_CMD8, CmdArg);
if (Status == EFI_SUCCESS) {
DEBUG ((EFI_D_ERROR, "Card is SD2.0 => Supports high capacity\n"));
IsHCS = TRUE;
Status = MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_R7, Response);
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_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) {
DEBUG ((EFI_D_ERROR, "The Card is not usable\n"));
return EFI_UNSUPPORTED;
}
} 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.PowerUp == 1)
Timeout = MAX_RETRY_COUNT;
while (Timeout > 0) {
// SD Card or MMC Card ? CMD55 indicates to the card that the next command is an application specific command
Status = MmcHost->SendCommand (MmcHost, MMC_CMD55, 0);
if (Status == EFI_SUCCESS) {
DEBUG ((EFI_D_INFO, "Card should be SD\n"));
if (IsHCS) {
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 (IsHCS) {
CmdArg |= BIT30;
}
Status = MmcHost->SendCommand (MmcHost, MMC_ACMD41, CmdArg);
if (!EFI_ERROR (Status)) {
Status = MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_OCR, Response);
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_ERROR, "MmcIdentificationMode() : Failed to receive OCR, Status=%r.\n", Status));
return Status;
}
((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 (MmcHost, MMC_CMD1, 0x800000);
if (!EFI_ERROR (Status)) {
Status = MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_OCR, Response);
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_ERROR, "MmcIdentificationMode() : Failed to receive OCR, Status=%r.\n", Status));
return Status;
}
((UINT32 *) &(MmcHostInstance->CardInfo.OCRData))[0] = Response[0];
}
}
if (!EFI_ERROR (Status)) {
if (!MmcHostInstance->CardInfo.OCRData.PowerUp) {
MicroSecondDelay (1);
Timeout--;
} 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
}
} else {
MicroSecondDelay (1);
Timeout--;
}
}
if (Timeout == 0) {
DEBUG ((EFI_D_ERROR, "MmcIdentificationMode(): No Card\n"));
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 (MmcHost, MMC_CMD2, 0);
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD2): Error\n"));
return Status;
}
Status = MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_CID, Response);
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_ERROR, "MmcIdentificationMode() : Failed to receive CID, Status=%r.\n", Status));
return Status;
}
PrintCID (Response);
Status = MmcHost->NotifyState (MmcHost, MmcIdentificationState);
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcIdentificationState\n"));
return Status;
}
//
// Note, SD specifications say that "if the command execution causes a state change, it
// will be visible to the host in the response to the next command"
// The status returned for this CMD3 will be 2 - identification
//
CmdArg = 1;
Status = MmcHost->SendCommand (MmcHost, MMC_CMD3, CmdArg);
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD3): Error\n"));
return Status;
}
Status = MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_RCA, Response);
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_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
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
InitializeMmcDevice (
IN MMC_HOST_INSTANCE *MmcHostInstance
)
{
EFI_STATUS Status;
EFI_MMC_HOST_PROTOCOL *MmcHost;
UINTN BlockCount;
BlockCount = 1;
MmcHost = MmcHostInstance->MmcHost;
Status = MmcIdentificationMode (MmcHostInstance);
if (EFI_ERROR (Status)) {
DEBUG((EFI_D_ERROR, "InitializeMmcDevice(): Error in Identification Mode, Status=%r\n", Status));
return Status;
}
Status = MmcNotifyState (MmcHostInstance, MmcTransferState);
if (EFI_ERROR (Status)) {
DEBUG((EFI_D_ERROR, "InitializeMmcDevice(): Error MmcTransferState, Status=%r\n", Status));
return Status;
}
if (MmcHostInstance->CardInfo.CardType != EMMC_CARD) {
Status = InitializeSdMmcDevice (MmcHostInstance);
if (EFI_ERROR (Status)) {
return Status;
}
}
// Set Block Length
Status = MmcHost->SendCommand (MmcHost, MMC_CMD16, MmcHostInstance->BlockIo.Media->BlockSize);
if (EFI_ERROR (Status)) {
DEBUG((EFI_D_ERROR, "InitializeMmcDevice(MMC_CMD16): Error MmcHostInstance->BlockIo.Media->BlockSize: %d and Error = %r\n",
MmcHostInstance->BlockIo.Media->BlockSize, Status));
return Status;
}
// Block Count (not used). Could return an error for SD card
if (MmcHostInstance->CardInfo.CardType == MMC_CARD) {
Status = MmcHost->SendCommand (MmcHost, MMC_CMD23, BlockCount);
if (EFI_ERROR (Status)) {
DEBUG((EFI_D_ERROR, "InitializeMmcDevice(MMC_CMD23): Error, Status=%r\n", Status));
return Status;
}
}
return EFI_SUCCESS;
}