diff options
Diffstat (limited to 'EmbeddedPkg/Universal/MmcDxe/MmcBlockIo.c')
| -rw-r--r-- | EmbeddedPkg/Universal/MmcDxe/MmcBlockIo.c | 258 |
1 files changed, 1 insertions, 257 deletions
diff --git a/EmbeddedPkg/Universal/MmcDxe/MmcBlockIo.c b/EmbeddedPkg/Universal/MmcDxe/MmcBlockIo.c index 4b9b64e46f..04c82613d5 100644 --- a/EmbeddedPkg/Universal/MmcDxe/MmcBlockIo.c +++ b/EmbeddedPkg/Universal/MmcDxe/MmcBlockIo.c @@ -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,
@@ -67,259 +64,6 @@ MmcGetCardStatus ( 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 (
IN EFI_BLOCK_IO_PROTOCOL *This,
IN BOOLEAN ExtendedVerification
|