#include "MmcHostDxe.h"
EMBEDDED_EXTERNAL_DEVICE *gTPS65950;
-UINT8 MaxDataTransferRate = 0;
-UINT32 Rca = 0;
-BOOLEAN BitModeSet = FALSE;
+UINT8 mMaxDataTransferRate = 0;
+UINT32 mRca = 0;
+BOOLEAN mBitModeSet = FALSE;
typedef struct {
UINTN *ClockFrequencySelect
)
{
- DEBUG((EFI_D_ERROR, "CalculateCardCLKD()\n"));
UINTN TransferRateValue = 0;
UINTN TimeValue = 0 ;
UINTN Frequency = 0;
+ DEBUG ((DEBUG_BLKIO, "CalculateCardCLKD()\n"));
+
// For SD Cards we would need to send CMD6 to set
// speeds abouve 25MHz. High Speed mode 50 MHz and up
- //Calculate Transfer rate unit (Bits 2:0 of TRAN_SPEED)
- switch (MaxDataTransferRate & 0x7) { // 2
+ // Calculate Transfer rate unit (Bits 2:0 of TRAN_SPEED)
+ switch (mMaxDataTransferRate & 0x7) { // 2
case 0:
TransferRateValue = 100 * 1000;
break;
break;
default:
- DEBUG((EFI_D_ERROR, "Invalid parameter.\n"));
+ DEBUG ((DEBUG_BLKIO, "Invalid parameter.\n"));
ASSERT(FALSE);
+ return;
}
//Calculate Time value (Bits 6:3 of TRAN_SPEED)
- switch ((MaxDataTransferRate >> 3) & 0xF) { // 6
+ switch ((mMaxDataTransferRate >> 3) & 0xF) { // 6
case 1:
TimeValue = 10;
break;
break;
default:
- DEBUG((EFI_D_ERROR, "Invalid parameter.\n"));
+ DEBUG ((DEBUG_BLKIO, "Invalid parameter.\n"));
ASSERT(FALSE);
+ return;
}
Frequency = TransferRateValue * TimeValue/10;
- //Calculate Clock divider value to program in MMCHS_SYSCTL[CLKD] field.
+ // Calculate Clock divider value to program in MMCHS_SYSCTL[CLKD] field.
*ClockFrequencySelect = ((MMC_REFERENCE_CLK/Frequency) + 1);
- DEBUG ((EFI_D_INFO, "MaxDataTransferRate: 0x%x, Frequency: %d KHz, ClockFrequencySelect: %x\n", MaxDataTransferRate, Frequency/1000, *ClockFrequencySelect));
+ DEBUG ((DEBUG_BLKIO, "mMaxDataTransferRate: 0x%x, Frequency: %d KHz, ClockFrequencySelect: %x\n", mMaxDataTransferRate, Frequency/1000, *ClockFrequencySelect));
}
VOID
UINTN NewCLKD
)
{
- DEBUG((EFI_D_ERROR, "UpdateMMCHSClkFrequency()\n"));
- //Set Clock enable to 0x0 to not provide the clock to the card
+ DEBUG ((DEBUG_BLKIO, "UpdateMMCHSClkFrequency()\n"));
+
+ // Set Clock enable to 0x0 to not provide the clock to the card
MmioAnd32 (MMCHS_SYSCTL, ~CEN);
- //Set new clock frequency.
+ // Set new clock frequency.
MmioAndThenOr32 (MMCHS_SYSCTL, ~CLKD_MASK, NewCLKD << 6);
- //Poll till Internal Clock Stable
+ // Poll till Internal Clock Stable
while ((MmioRead32 (MMCHS_SYSCTL) & ICS_MASK) != ICS);
- //Set Clock enable to 0x1 to provide the clock to the card
+ // Set Clock enable to 0x1 to provide the clock to the card
MmioOr32 (MMCHS_SYSCTL, CEN);
}
VOID
)
{
- DEBUG((EFI_D_ERROR, "InitializeMMCHS()\n"));
- UINT8 Data = 0;
+ UINT8 Data;
EFI_STATUS Status;
- //Select Device group to belong to P1 device group in Power IC.
+ DEBUG ((DEBUG_BLKIO, "InitializeMMCHS()\n"));
+
+ // Select Device group to belong to P1 device group in Power IC.
Data = DEV_GRP_P1;
Status = gTPS65950->Write (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, VMMC1_DEV_GRP), 1, &Data);
ASSERT_EFI_ERROR(Status);
- //Configure voltage regulator for MMC1 in Power IC to output 3.0 voltage.
+ // Configure voltage regulator for MMC1 in Power IC to output 3.0 voltage.
Data = VSEL_3_00V;
Status = gTPS65950->Write (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, VMMC1_DEDICATED_REG), 1, &Data);
ASSERT_EFI_ERROR(Status);
- //After ramping up voltage, set VDDS stable bit to indicate that voltage level is stable.
+ // After ramping up voltage, set VDDS stable bit to indicate that voltage level is stable.
MmioOr32 (CONTROL_PBIAS_LITE, (PBIASLITEVMODE0 | PBIASLITEPWRDNZ0 | PBIASSPEEDCTRL0 | PBIASLITEVMODE1 | PBIASLITEWRDNZ1));
// Enable WP GPIO
Data = CARD_DETECT_ENABLE;
gTPS65950->Write (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID2, TPS65950_GPIO_CTRL), 1, &Data);
-
return Status;
}
VOID
)
{
- //DEBUG((EFI_D_ERROR, "MMCIsCardPresent()\n"));
EFI_STATUS Status;
UINT8 Data;
IN UINT32 Argument
)
{
+ UINTN MmcStatus;
+ UINTN RetryCount = 0;
+
if (IgnoreCommand(MmcCmd))
return EFI_SUCCESS;
MmcCmd = TranslateCommand(MmcCmd);
- //DEBUG((EFI_D_ERROR, "MMCSendCommand(%d)\n", MmcCmd));
- UINTN MmcStatus;
- UINTN RetryCount = 0;
+ //DEBUG ((EFI_D_ERROR, "MMCSendCommand(%d)\n", MmcCmd));
- //Check if command line is in use or not. Poll till command line is available.
+ // Check if command line is in use or not. Poll till command line is available.
while ((MmioRead32 (MMCHS_PSTATE) & DATI_MASK) == DATI_NOT_ALLOWED);
- //Provide the block size.
+ // Provide the block size.
MmioWrite32 (MMCHS_BLK, BLEN_512BYTES);
- //Setting Data timeout counter value to max value.
+ // Setting Data timeout counter value to max value.
MmioAndThenOr32 (MMCHS_SYSCTL, ~DTO_MASK, DTO_VAL);
- //Clear Status register.
+ // Clear Status register.
MmioWrite32 (MMCHS_STAT, 0xFFFFFFFF);
- //Set command argument register
+ // Set command argument register
MmioWrite32 (MMCHS_ARG, Argument);
//TODO: fix this
//Enable interrupt enable events to occur
//MmioWrite32 (MMCHS_IE, CmdInterruptEnableVal);
- //Send a command
+ // Send a command
MmioWrite32 (MMCHS_CMD, MmcCmd);
- //Check for the command status.
+ // Check for the command status.
while (RetryCount < MAX_RETRY_COUNT) {
do {
MmcStatus = MmioRead32 (MMCHS_STAT);
} while (MmcStatus == 0);
- //Read status of command response
+ // Read status of command response
if ((MmcStatus & ERRI) != 0) {
- //Perform soft-reset for mmci_cmd line.
+ // Perform soft-reset for mmci_cmd line.
MmioOr32 (MMCHS_SYSCTL, SRC);
while ((MmioRead32 (MMCHS_SYSCTL) & SRC));
return EFI_DEVICE_ERROR;
}
- //Check if command is completed.
+ // Check if command is completed.
if ((MmcStatus & CC) == CC) {
MmioWrite32 (MMCHS_STAT, CC);
break;
}
if (RetryCount == MAX_RETRY_COUNT) {
- DEBUG((EFI_D_ERROR, "MMCSendCommand: Timeout\n"));
+ DEBUG ((DEBUG_BLKIO, "MMCSendCommand: Timeout\n"));
return EFI_TIMEOUT;
}
)
{
EFI_STATUS Status;
- UINTN freqSel;
+ UINTN FreqSel;
+
switch(State) {
case MmcInvalidState:
ASSERT(0);
break;
case MmcHwInitializationState:
- BitModeSet = FALSE;
+ mBitModeSet = FALSE;
- DEBUG((EFI_D_ERROR, "MMCHwInitializationState()\n"));
+ DEBUG ((DEBUG_BLKIO, "MMCHwInitializationState()\n"));
Status = InitializeMMCHS ();
if (EFI_ERROR(Status)) {
- DEBUG ((EFI_D_ERROR, "Initialize MMC host controller fails. Status: %x\n", Status));
+ DEBUG ((DEBUG_BLKIO, "Initialize MMC host controller fails. Status: %x\n", Status));
return Status;
}
- //Software reset of the MMCHS host controller.
+ // Software reset of the MMCHS host controller.
MmioWrite32 (MMCHS_SYSCONFIG, SOFTRESET);
gBS->Stall(1000);
while ((MmioRead32 (MMCHS_SYSSTATUS) & RESETDONE_MASK) != RESETDONE);
- //Soft reset for all.
+ // Soft reset for all.
MmioWrite32 (MMCHS_SYSCTL, SRA);
gBS->Stall(1000);
while ((MmioRead32 (MMCHS_SYSCTL) & SRA) != 0x0);
//Voltage capabilities initialization. Activate VS18 and VS30.
MmioOr32 (MMCHS_CAPA, (VS30 | VS18));
- //Wakeup configuration
+ // Wakeup configuration
MmioOr32 (MMCHS_SYSCONFIG, ENAWAKEUP);
MmioOr32 (MMCHS_HCTL, IWE);
- //MMCHS Controller default initialization
+ // MMCHS Controller default initialization
MmioOr32 (MMCHS_CON, (OD | DW8_1_4_BIT | CEATA_OFF));
MmioWrite32 (MMCHS_HCTL, (SDVS_3_0_V | DTW_1_BIT | SDBP_OFF));
- //Enable internal clock
+ // Enable internal clock
MmioOr32 (MMCHS_SYSCTL, ICE);
- //Set the clock frequency to 80KHz.
+ // Set the clock frequency to 80KHz.
UpdateMMCHSClkFrequency (CLKD_80KHZ);
- //Enable SD bus power.
+ // Enable SD bus power.
MmioOr32 (MMCHS_HCTL, (SDBP_ON));
- //Poll till SD bus power bit is set.
+ // Poll till SD bus power bit is set.
while ((MmioRead32 (MMCHS_HCTL) & SDBP_MASK) != SDBP_ON);
- //Enable interrupts.
+ // Enable interrupts.
MmioWrite32 (MMCHS_IE, (BADA_EN | CERR_EN | DEB_EN | DCRC_EN | DTO_EN | CIE_EN |
CEB_EN | CCRC_EN | CTO_EN | BRR_EN | BWR_EN | TC_EN | CC_EN));
- //Controller INIT procedure start.
+ // Controller INIT procedure start.
MmioOr32 (MMCHS_CON, INIT);
MmioWrite32 (MMCHS_CMD, 0x00000000);
while (!(MmioRead32 (MMCHS_STAT) & CC));
- //Wait for 1 ms
- gBS->Stall(1000);
+ // Wait for 1 ms
+ gBS->Stall (1000);
- //Set CC bit to 0x1 to clear the flag
+ // Set CC bit to 0x1 to clear the flag
MmioOr32 (MMCHS_STAT, CC);
- //Retry INIT procedure.
+ // Retry INIT procedure.
MmioWrite32 (MMCHS_CMD, 0x00000000);
while (!(MmioRead32 (MMCHS_STAT) & CC));
- //End initialization sequence
+ // End initialization sequence
MmioAnd32 (MMCHS_CON, ~INIT);
MmioOr32 (MMCHS_HCTL, (SDVS_3_0_V | DTW_1_BIT | SDBP_ON));
- //Change clock frequency to 400KHz to fit protocol
+ // Change clock frequency to 400KHz to fit protocol
UpdateMMCHSClkFrequency(CLKD_400KHZ);
MmioOr32 (MMCHS_CON, OD);
case MmcIdentificationState:
break;
case MmcStandByState:
- CalculateCardCLKD(&freqSel);
- UpdateMMCHSClkFrequency(freqSel);
+ CalculateCardCLKD (&FreqSel);
+ UpdateMMCHSClkFrequency (FreqSel);
break;
case MmcTransferState:
- if (!BitModeSet) {
- Status = MMCSendCommand (CMD55, Rca << 16);
+ if (!mBitModeSet) {
+ Status = MMCSendCommand (This, CMD55, mRca << 16);
if (!EFI_ERROR (Status)) {
- // set device into 4-bit data bus mode
- Status = MMCSendCommand (ACMD6, 0x2);
+ // Set device into 4-bit data bus mode
+ Status = MMCSendCommand (This, ACMD6, 0x2);
if (!EFI_ERROR (Status)) {
- // Set host controler into 4-bit mode
+ // Set host controler into 4-bit mode
MmioOr32 (MMCHS_HCTL, DTW_4_BIT);
- DEBUG ((EFI_D_INFO, "SD Memory Card set to 4-bit mode\n"));
- BitModeSet = TRUE;
+ DEBUG ((DEBUG_BLKIO, "SD Memory Card set to 4-bit mode\n"));
+ mBitModeSet = TRUE;
}
}
}
IN UINT32* Buffer
)
{
- //DEBUG((EFI_D_ERROR, "MMCReceiveResponse()\n"));
if (Buffer == NULL) {
- DEBUG((EFI_D_ERROR, "Buffer was NULL\n"));
return EFI_INVALID_PARAMETER;
}
}
if (Type == MMC_RESPONSE_TYPE_CSD) {
- MaxDataTransferRate = Buffer[3] & 0xFF;
+ mMaxDataTransferRate = Buffer[3] & 0xFF;
} else if (Type == MMC_RESPONSE_TYPE_RCA) {
- Rca = Buffer[0] >> 16;
+ mRca = Buffer[0] >> 16;
}
return EFI_SUCCESS;
IN UINT32* Buffer
)
{
- //DEBUG((EFI_D_ERROR, "MMCReadBlockData(LBA: 0x%x, ", Lba));
- //DEBUG((EFI_D_ERROR, "Length: 0x%x, ", Length));
- //DEBUG((EFI_D_ERROR, "Buffer: 0x%x)\n", Buffer));
UINTN MmcStatus;
UINTN Count;
UINTN RetryCount = 0;
- //Check controller status to make sure there is no error.
+ DEBUG ((DEBUG_BLKIO, "MMCReadBlockData(LBA: 0x%x, Length: 0x%x, Buffer: 0x%x)\n", Lba, Length, Buffer));
+
+ // Check controller status to make sure there is no error.
while (RetryCount < MAX_RETRY_COUNT) {
do {
- //Read Status.
+ // Read Status.
MmcStatus = MmioRead32 (MMCHS_STAT);
} while(MmcStatus == 0);
- //Check if Buffer read ready (BRR) bit is set?
+ // Check if Buffer read ready (BRR) bit is set?
if (MmcStatus & BRR) {
- //Clear BRR bit
+ // Clear BRR bit
MmioOr32 (MMCHS_STAT, BRR);
for (Count = 0; Count < Length / 4; Count++) {
UINTN Count;
UINTN RetryCount = 0;
- //Check controller status to make sure there is no error.
+ // Check controller status to make sure there is no error.
while (RetryCount < MAX_RETRY_COUNT) {
do {
- //Read Status.
+ // Read Status.
MmcStatus = MmioRead32 (MMCHS_STAT);
} while(MmcStatus == 0);
- //Check if Buffer write ready (BWR) bit is set?
+ // Check if Buffer write ready (BWR) bit is set?
if (MmcStatus & BWR) {
- //Clear BWR bit
+ // Clear BWR bit
MmioOr32 (MMCHS_STAT, BWR);
- //Write block worth of data.
+ // Write block worth of data.
for (Count = 0; Count < Length / 4; Count++) {
MmioWrite32 (MMCHS_DATA, *Buffer++);
}
IN EFI_SYSTEM_TABLE *SystemTable
)
{
- DEBUG((EFI_D_ERROR, "MMCInitialize()\n"));
EFI_STATUS Status;
EFI_HANDLE Handle = NULL;
+ DEBUG ((DEBUG_BLKIO, "MMCInitialize()\n"));
+
Status = gBS->LocateProtocol (&gEmbeddedExternalDeviceProtocolGuid, NULL, (VOID **)&gTPS65950);
ASSERT_EFI_ERROR(Status);
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