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qemu / edk2 / 8c1b1fe634a233ad7570f2243027d6be8a7849a1 / . / MdeModulePkg / Bus / Ufs / UfsBlockIoPei / UfsHci.c
blob: e450f6f49d7c50f464f3283f96c38f9d239287bc [file] [log] [blame]
/** @file
Copyright (c) 2014 - 2018, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include "UfsBlockIoPei.h"
/**
Wait for the value of the specified system memory set to the test value.
@param Address The system memory address to test.
@param MaskValue The mask value of memory.
@param TestValue The test value of memory.
@param Timeout The time out value for wait memory set, uses 100ns as a unit.
@retval EFI_TIMEOUT The system memory setting is time out.
@retval EFI_SUCCESS The system memory is correct set.
**/
EFI_STATUS
EFIAPI
UfsWaitMemSet (
IN UINTN Address,
IN UINT32 MaskValue,
IN UINT32 TestValue,
IN UINT64 Timeout
)
{
UINT32 Value;
UINT64 Delay;
BOOLEAN InfiniteWait;
if (Timeout == 0) {
InfiniteWait = TRUE;
} else {
InfiniteWait = FALSE;
}
Delay = DivU64x32 (Timeout, 10) + 1;
do {
//
// Access PCI MMIO space to see if the value is the tested one.
//
Value = MmioRead32 (Address) & MaskValue;
if (Value == TestValue) {
return EFI_SUCCESS;
}
//
// Stall for 1 microseconds.
//
MicroSecondDelay (1);
Delay--;
} while (InfiniteWait || (Delay > 0));
return EFI_TIMEOUT;
}
/**
Dump UIC command execution result for debugging.
@param[in] UicOpcode The executed UIC opcode.
@param[in] Result The result to be parsed.
**/
VOID
DumpUicCmdExecResult (
IN UINT8 UicOpcode,
IN UINT8 Result
)
{
if (UicOpcode <= UfsUicDmePeerSet) {
switch (Result) {
case 0x00:
break;
case 0x01:
DEBUG ((EFI_D_VERBOSE, "UIC configuration command fails - INVALID_MIB_ATTRIBUTE\n"));
break;
case 0x02:
DEBUG ((EFI_D_VERBOSE, "UIC configuration command fails - INVALID_MIB_ATTRIBUTE_VALUE\n"));
break;
case 0x03:
DEBUG ((EFI_D_VERBOSE, "UIC configuration command fails - READ_ONLY_MIB_ATTRIBUTE\n"));
break;
case 0x04:
DEBUG ((EFI_D_VERBOSE, "UIC configuration command fails - WRITE_ONLY_MIB_ATTRIBUTE\n"));
break;
case 0x05:
DEBUG ((EFI_D_VERBOSE, "UIC configuration command fails - BAD_INDEX\n"));
break;
case 0x06:
DEBUG ((EFI_D_VERBOSE, "UIC configuration command fails - LOCKED_MIB_ATTRIBUTE\n"));
break;
case 0x07:
DEBUG ((EFI_D_VERBOSE, "UIC configuration command fails - BAD_TEST_FEATURE_INDEX\n"));
break;
case 0x08:
DEBUG ((EFI_D_VERBOSE, "UIC configuration command fails - PEER_COMMUNICATION_FAILURE\n"));
break;
case 0x09:
DEBUG ((EFI_D_VERBOSE, "UIC configuration command fails - BUSY\n"));
break;
case 0x0A:
DEBUG ((EFI_D_VERBOSE, "UIC configuration command fails - DME_FAILURE\n"));
break;
default :
ASSERT (FALSE);
break;
}
} else {
switch (Result) {
case 0x00:
break;
case 0x01:
DEBUG ((EFI_D_VERBOSE, "UIC control command fails - FAILURE\n"));
break;
default :
ASSERT (FALSE);
break;
}
}
}
/**
Dump QUERY RESPONSE UPIU result for debugging.
@param[in] Result The result to be parsed.
**/
VOID
DumpQueryResponseResult (
IN UINT8 Result
)
{
switch (Result) {
case 0xF6:
DEBUG ((EFI_D_VERBOSE, "Query Response with Parameter Not Readable\n"));
break;
case 0xF7:
DEBUG ((EFI_D_VERBOSE, "Query Response with Parameter Not Writeable\n"));
break;
case 0xF8:
DEBUG ((EFI_D_VERBOSE, "Query Response with Parameter Already Written\n"));
break;
case 0xF9:
DEBUG ((EFI_D_VERBOSE, "Query Response with Invalid Length\n"));
break;
case 0xFA:
DEBUG ((EFI_D_VERBOSE, "Query Response with Invalid Value\n"));
break;
case 0xFB:
DEBUG ((EFI_D_VERBOSE, "Query Response with Invalid Selector\n"));
break;
case 0xFC:
DEBUG ((EFI_D_VERBOSE, "Query Response with Invalid Index\n"));
break;
case 0xFD:
DEBUG ((EFI_D_VERBOSE, "Query Response with Invalid Idn\n"));
break;
case 0xFE:
DEBUG ((EFI_D_VERBOSE, "Query Response with Invalid Opcode\n"));
break;
case 0xFF:
DEBUG ((EFI_D_VERBOSE, "Query Response with General Failure\n"));
break;
default :
ASSERT (FALSE);
break;
}
}
/**
Swap little endian to big endian.
@param[in, out] Buffer The data buffer. In input, it contains little endian data.
In output, it will become big endian.
@param[in] BufferSize The length of converted data.
**/
VOID
SwapLittleEndianToBigEndian (
IN OUT UINT8 *Buffer,
IN UINT32 BufferSize
)
{
UINT32 Index;
UINT8 Temp;
UINT32 SwapCount;
SwapCount = BufferSize / 2;
for (Index = 0; Index < SwapCount; Index++) {
Temp = Buffer[Index];
Buffer[Index] = Buffer[BufferSize - 1 - Index];
Buffer[BufferSize - 1 - Index] = Temp;
}
}
/**
Fill TSF field of QUERY REQUEST UPIU.
@param[in, out] TsfBase The base address of TSF field of QUERY REQUEST UPIU.
@param[in] Opcode The opcode of request.
@param[in] DescId The descriptor ID of request.
@param[in] Index The index of request.
@param[in] Selector The selector of request.
@param[in] Length The length of transferred data. The maximum is 4.
@param[in] Value The value of transferred data.
**/
VOID
UfsFillTsfOfQueryReqUpiu (
IN OUT UTP_UPIU_TSF *TsfBase,
IN UINT8 Opcode,
IN UINT8 DescId OPTIONAL,
IN UINT8 Index OPTIONAL,
IN UINT8 Selector OPTIONAL,
IN UINT16 Length OPTIONAL,
IN UINT32 Value OPTIONAL
)
{
ASSERT (TsfBase != NULL);
ASSERT (Opcode <= UtpQueryFuncOpcodeTogFlag);
TsfBase->Opcode = Opcode;
if (Opcode != UtpQueryFuncOpcodeNop) {
TsfBase->DescId = DescId;
TsfBase->Index = Index;
TsfBase->Selector = Selector;
if ((Opcode == UtpQueryFuncOpcodeRdDesc) || (Opcode == UtpQueryFuncOpcodeWrDesc)) {
SwapLittleEndianToBigEndian ((UINT8*)&Length, sizeof (Length));
TsfBase->Length = Length;
}
if (Opcode == UtpQueryFuncOpcodeWrAttr) {
SwapLittleEndianToBigEndian ((UINT8*)&Value, sizeof (Value));
TsfBase->Value = Value;
}
}
}
/**
Initialize COMMAND UPIU.
@param[in, out] Command The base address of COMMAND UPIU.
@param[in] Lun The Lun on which the SCSI command is executed.
@param[in] TaskTag The task tag of request.
@param[in] Cdb The cdb buffer containing SCSI command.
@param[in] CdbLength The cdb length.
@param[in] DataDirection The direction of data transfer.
@param[in] ExpDataTranLen The expected transfer data length.
@retval EFI_SUCCESS The initialization succeed.
**/
EFI_STATUS
UfsInitCommandUpiu (
IN OUT UTP_COMMAND_UPIU *Command,
IN UINT8 Lun,
IN UINT8 TaskTag,
IN UINT8 *Cdb,
IN UINT8 CdbLength,
IN UFS_DATA_DIRECTION DataDirection,
IN UINT32 ExpDataTranLen
)
{
UINT8 Flags;
ASSERT ((Command != NULL) && (Cdb != NULL));
//
// Task attribute is hard-coded to Ordered.
//
if (DataDirection == UfsDataIn) {
Flags = BIT0 | BIT6;
} else if (DataDirection == UfsDataOut) {
Flags = BIT0 | BIT5;
} else {
Flags = BIT0;
}
//
// Fill UTP COMMAND UPIU associated fields.
//
Command->TransCode = 0x01;
Command->Flags = Flags;
Command->Lun = Lun;
Command->TaskTag = TaskTag;
Command->CmdSet = 0x00;
SwapLittleEndianToBigEndian ((UINT8*)&ExpDataTranLen, sizeof (ExpDataTranLen));
Command->ExpDataTranLen = ExpDataTranLen;
CopyMem (Command->Cdb, Cdb, CdbLength);
return EFI_SUCCESS;
}
/**
Initialize UTP PRDT for data transfer.
@param[in] Prdt The base address of PRDT.
@param[in] Buffer The buffer to be read or written.
@param[in] BufferSize The data size to be read or written.
@retval EFI_SUCCESS The initialization succeed.
**/
EFI_STATUS
UfsInitUtpPrdt (
IN UTP_TR_PRD *Prdt,
IN VOID *Buffer,
IN UINT32 BufferSize
)
{
UINT32 PrdtIndex;
UINT32 RemainingLen;
UINT8 *Remaining;
UINTN PrdtNumber;
if ((BufferSize & (BIT0 | BIT1)) != 0) {
BufferSize &= ~(BIT0 | BIT1);
DEBUG ((EFI_D_WARN, "UfsInitUtpPrdt: The BufferSize [%d] is not dword-aligned!\n", BufferSize));
}
if (BufferSize == 0) {
return EFI_SUCCESS;
}
ASSERT (((UINTN)Buffer & (BIT0 | BIT1)) == 0);
RemainingLen = BufferSize;
Remaining = Buffer;
PrdtNumber = (UINTN)DivU64x32 ((UINT64)BufferSize + UFS_MAX_DATA_LEN_PER_PRD - 1, UFS_MAX_DATA_LEN_PER_PRD);
for (PrdtIndex = 0; PrdtIndex < PrdtNumber; PrdtIndex++) {
if (RemainingLen < UFS_MAX_DATA_LEN_PER_PRD) {
Prdt[PrdtIndex].DbCount = (UINT32)RemainingLen - 1;
} else {
Prdt[PrdtIndex].DbCount = UFS_MAX_DATA_LEN_PER_PRD - 1;
}
Prdt[PrdtIndex].DbAddr = (UINT32)RShiftU64 ((UINT64)(UINTN)Remaining, 2);
Prdt[PrdtIndex].DbAddrU = (UINT32)RShiftU64 ((UINT64)(UINTN)Remaining, 32);
RemainingLen -= UFS_MAX_DATA_LEN_PER_PRD;
Remaining += UFS_MAX_DATA_LEN_PER_PRD;
}
return EFI_SUCCESS;
}
/**
Initialize QUERY REQUEST UPIU.
@param[in, out] QueryReq The base address of QUERY REQUEST UPIU.
@param[in] TaskTag The task tag of request.
@param[in] Opcode The opcode of request.
@param[in] DescId The descriptor ID of request.
@param[in] Index The index of request.
@param[in] Selector The selector of request.
@param[in] DataSize The data size to be read or written.
@param[in] Data The buffer to be read or written.
@retval EFI_SUCCESS The initialization succeed.
**/
EFI_STATUS
UfsInitQueryRequestUpiu (
IN OUT UTP_QUERY_REQ_UPIU *QueryReq,
IN UINT8 TaskTag,
IN UINT8 Opcode,
IN UINT8 DescId,
IN UINT8 Index,
IN UINT8 Selector,
IN UINTN DataSize OPTIONAL,
IN UINT8 *Data OPTIONAL
)
{
ASSERT (QueryReq != NULL);
QueryReq->TransCode = 0x16;
QueryReq->TaskTag = TaskTag;
if ((Opcode == UtpQueryFuncOpcodeRdDesc) || (Opcode == UtpQueryFuncOpcodeRdFlag) || (Opcode == UtpQueryFuncOpcodeRdAttr)) {
QueryReq->QueryFunc = QUERY_FUNC_STD_READ_REQ;
} else {
QueryReq->QueryFunc = QUERY_FUNC_STD_WRITE_REQ;
}
if (Opcode == UtpQueryFuncOpcodeWrAttr) {
UfsFillTsfOfQueryReqUpiu (&QueryReq->Tsf, Opcode, DescId, Index, Selector, 0, *(UINT32*)Data);
} else if ((Opcode == UtpQueryFuncOpcodeRdDesc) || (Opcode == UtpQueryFuncOpcodeWrDesc)) {
UfsFillTsfOfQueryReqUpiu (&QueryReq->Tsf, Opcode, DescId, Index, Selector, (UINT16)DataSize, 0);
} else {
UfsFillTsfOfQueryReqUpiu (&QueryReq->Tsf, Opcode, DescId, Index, Selector, 0, 0);
}
if (Opcode == UtpQueryFuncOpcodeWrDesc) {
CopyMem (QueryReq + 1, Data, DataSize);
SwapLittleEndianToBigEndian ((UINT8*)&DataSize, sizeof (UINT16));
QueryReq->DataSegLen = (UINT16)DataSize;
}
return EFI_SUCCESS;
}
/**
Allocate COMMAND/RESPONSE UPIU for filling UTP TRD's command descriptor field.
@param[in] Private The pointer to the UFS_PEIM_HC_PRIVATE_DATA data structure.
@param[in] Lun The Lun on which the SCSI command is executed.
@param[in] Packet The pointer to the UFS_SCSI_REQUEST_PACKET data structure.
@param[in] Trd The pointer to the UTP Transfer Request Descriptor.
@param[out] BufferMap A resulting value, if not NULL, to pass to IoMmuUnmap().
@retval EFI_SUCCESS The creation succeed.
@retval EFI_DEVICE_ERROR The creation failed.
@retval EFI_OUT_OF_RESOURCES The memory resource is insufficient.
**/
EFI_STATUS
UfsCreateScsiCommandDesc (
IN UFS_PEIM_HC_PRIVATE_DATA *Private,
IN UINT8 Lun,
IN UFS_SCSI_REQUEST_PACKET *Packet,
IN UTP_TRD *Trd,
OUT VOID **BufferMap
)
{
UINT8 *CommandDesc;
UINTN TotalLen;
UINTN PrdtNumber;
VOID *Buffer;
UINT32 Length;
UTP_COMMAND_UPIU *CommandUpiu;
UTP_TR_PRD *PrdtBase;
UFS_DATA_DIRECTION DataDirection;
EFI_STATUS Status;
EDKII_IOMMU_OPERATION MapOp;
UINTN MapLength;
EFI_PHYSICAL_ADDRESS BufferPhyAddr;
ASSERT ((Private != NULL) && (Packet != NULL) && (Trd != NULL));
BufferPhyAddr = 0;
if (Packet->DataDirection == UfsDataIn) {
Buffer = Packet->InDataBuffer;
Length = Packet->InTransferLength;
DataDirection = UfsDataIn;
MapOp = EdkiiIoMmuOperationBusMasterWrite;
} else {
Buffer = Packet->OutDataBuffer;
Length = Packet->OutTransferLength;
DataDirection = UfsDataOut;
MapOp = EdkiiIoMmuOperationBusMasterRead;
}
if (Length == 0) {
DataDirection = UfsNoData;
} else {
MapLength = Length;
Status = IoMmuMap (MapOp, Buffer, &MapLength, &BufferPhyAddr, BufferMap);
if (EFI_ERROR (Status) || (MapLength != Length)) {
DEBUG ((DEBUG_ERROR, "UfsCreateScsiCommandDesc: Fail to map data buffer.\n"));
return EFI_OUT_OF_RESOURCES;
}
}
PrdtNumber = (UINTN)DivU64x32 ((UINT64)Length + UFS_MAX_DATA_LEN_PER_PRD - 1, UFS_MAX_DATA_LEN_PER_PRD);
TotalLen = ROUNDUP8 (sizeof (UTP_COMMAND_UPIU)) + ROUNDUP8 (sizeof (UTP_RESPONSE_UPIU)) + PrdtNumber * sizeof (UTP_TR_PRD);
CommandDesc = UfsPeimAllocateMem (Private->Pool, TotalLen);
if (CommandDesc == NULL) {
return EFI_OUT_OF_RESOURCES;
}
CommandUpiu = (UTP_COMMAND_UPIU*)CommandDesc;
PrdtBase = (UTP_TR_PRD*)(CommandDesc + ROUNDUP8 (sizeof (UTP_COMMAND_UPIU)) + ROUNDUP8 (sizeof (UTP_RESPONSE_UPIU)));
UfsInitCommandUpiu (CommandUpiu, Lun, Private->TaskTag++, Packet->Cdb, Packet->CdbLength, DataDirection, Length);
UfsInitUtpPrdt (PrdtBase, (VOID*)(UINTN)BufferPhyAddr, Length);
//
// Fill UTP_TRD associated fields
// NOTE: Some UFS host controllers request the Response UPIU and the Physical Region Description Table
// *MUST* be located at a 64-bit aligned boundary.
//
Trd->Int = UFS_INTERRUPT_COMMAND;
Trd->Dd = DataDirection;
Trd->Ct = UFS_STORAGE_COMMAND_TYPE;
Trd->Ocs = UFS_HC_TRD_OCS_INIT_VALUE;
Trd->UcdBa = (UINT32)RShiftU64 ((UINT64)(UINTN)CommandUpiu, 7);
Trd->UcdBaU = (UINT32)RShiftU64 ((UINT64)(UINTN)CommandUpiu, 32);
Trd->RuL = (UINT16)DivU64x32 ((UINT64)ROUNDUP8 (sizeof (UTP_RESPONSE_UPIU)), sizeof (UINT32));
Trd->RuO = (UINT16)DivU64x32 ((UINT64)ROUNDUP8 (sizeof (UTP_COMMAND_UPIU)), sizeof (UINT32));
Trd->PrdtL = (UINT16)PrdtNumber;
Trd->PrdtO = (UINT16)DivU64x32 ((UINT64)(ROUNDUP8 (sizeof (UTP_COMMAND_UPIU)) + ROUNDUP8 (sizeof (UTP_RESPONSE_UPIU))), sizeof (UINT32));
return EFI_SUCCESS;
}
/**
Allocate QUERY REQUEST/QUERY RESPONSE UPIU for filling UTP TRD's command descriptor field.
@param[in] Private The pointer to the UFS_PEIM_HC_PRIVATE_DATA data structure.
@param[in] Packet The pointer to the UFS_DEVICE_MANAGEMENT_REQUEST_PACKET data structure.
@param[in] Trd The pointer to the UTP Transfer Request Descriptor.
@retval EFI_SUCCESS The creation succeed.
@retval EFI_DEVICE_ERROR The creation failed.
@retval EFI_OUT_OF_RESOURCES The memory resource is insufficient.
@retval EFI_INVALID_PARAMETER The parameter passed in is invalid.
**/
EFI_STATUS
UfsCreateDMCommandDesc (
IN UFS_PEIM_HC_PRIVATE_DATA *Private,
IN UFS_DEVICE_MANAGEMENT_REQUEST_PACKET *Packet,
IN UTP_TRD *Trd
)
{
UINT8 *CommandDesc;
UINTN TotalLen;
UTP_QUERY_REQ_UPIU *QueryReqUpiu;
UINT8 Opcode;
UINT32 DataSize;
UINT8 *Data;
UINT8 DataDirection;
ASSERT ((Private != NULL) && (Packet != NULL) && (Trd != NULL));
Opcode = Packet->Opcode;
if ((Opcode > UtpQueryFuncOpcodeTogFlag) || (Opcode == UtpQueryFuncOpcodeNop)) {
return EFI_INVALID_PARAMETER;
}
DataDirection = Packet->DataDirection;
if (DataDirection == UfsDataIn) {
DataSize = Packet->InTransferLength;
Data = Packet->InDataBuffer;
} else if (DataDirection == UfsDataOut) {
DataSize = Packet->OutTransferLength;
Data = Packet->OutDataBuffer;
} else {
DataSize = 0;
Data = NULL;
}
if (((Opcode != UtpQueryFuncOpcodeSetFlag) && (Opcode != UtpQueryFuncOpcodeClrFlag) && (Opcode != UtpQueryFuncOpcodeTogFlag))
&& ((DataSize == 0) || (Data == NULL))) {
return EFI_INVALID_PARAMETER;
}
if (((Opcode == UtpQueryFuncOpcodeSetFlag) || (Opcode == UtpQueryFuncOpcodeClrFlag) || (Opcode == UtpQueryFuncOpcodeTogFlag))
&& ((DataSize != 0) || (Data != NULL))) {
return EFI_INVALID_PARAMETER;
}
if ((Opcode == UtpQueryFuncOpcodeWrAttr) && (DataSize != sizeof (UINT32))) {
return EFI_INVALID_PARAMETER;
}
if ((Opcode == UtpQueryFuncOpcodeWrDesc) || (Opcode == UtpQueryFuncOpcodeRdDesc)) {
TotalLen = ROUNDUP8 (sizeof (UTP_QUERY_REQ_UPIU)) + ROUNDUP8 (sizeof (UTP_QUERY_RESP_UPIU)) + ROUNDUP8 (DataSize);
} else {
TotalLen = ROUNDUP8 (sizeof (UTP_QUERY_REQ_UPIU)) + ROUNDUP8 (sizeof (UTP_QUERY_RESP_UPIU));
}
CommandDesc = UfsPeimAllocateMem (Private->Pool, TotalLen);
if (CommandDesc == NULL) {
return EFI_OUT_OF_RESOURCES;
}
//
// Initialize UTP QUERY REQUEST UPIU
//
QueryReqUpiu = (UTP_QUERY_REQ_UPIU*)CommandDesc;
UfsInitQueryRequestUpiu (
QueryReqUpiu,
Private->TaskTag++,
Opcode,
Packet->DescId,
Packet->Index,
Packet->Selector,
DataSize,
Data
);
//
// Fill UTP_TRD associated fields
// NOTE: Some UFS host controllers request the Query Response UPIU *MUST* be located at a 64-bit aligned boundary.
//
Trd->Int = UFS_INTERRUPT_COMMAND;
Trd->Dd = DataDirection;
Trd->Ct = UFS_STORAGE_COMMAND_TYPE;
Trd->Ocs = UFS_HC_TRD_OCS_INIT_VALUE;
Trd->UcdBa = (UINT32)RShiftU64 ((UINT64)(UINTN)QueryReqUpiu, 7);
Trd->UcdBaU = (UINT32)RShiftU64 ((UINT64)(UINTN)QueryReqUpiu, 32);
if (Opcode == UtpQueryFuncOpcodeWrDesc) {
Trd->RuL = (UINT16)DivU64x32 ((UINT64)ROUNDUP8 (sizeof (UTP_QUERY_RESP_UPIU)), sizeof (UINT32));
Trd->RuO = (UINT16)DivU64x32 ((UINT64)ROUNDUP8 (sizeof (UTP_QUERY_REQ_UPIU)) + ROUNDUP8 (DataSize), sizeof (UINT32));
} else {
Trd->RuL = (UINT16)DivU64x32 ((UINT64)ROUNDUP8 (sizeof (UTP_QUERY_RESP_UPIU)) + ROUNDUP8 (DataSize), sizeof (UINT32));
Trd->RuO = (UINT16)DivU64x32 ((UINT64)ROUNDUP8 (sizeof (UTP_QUERY_REQ_UPIU)), sizeof (UINT32));
}
return EFI_SUCCESS;
}
/**
Allocate NOP IN and NOP OUT UPIU for filling UTP TRD's command descriptor field.
@param[in] Private The pointer to the UFS_PEIM_HC_PRIVATE_DATA data structure.
@param[in] Trd The pointer to the UTP Transfer Request Descriptor.
@retval EFI_SUCCESS The creation succeed.
@retval EFI_DEVICE_ERROR The creation failed.
@retval EFI_OUT_OF_RESOURCES The memory resource is insufficient.
**/
EFI_STATUS
UfsCreateNopCommandDesc (
IN UFS_PEIM_HC_PRIVATE_DATA *Private,
IN UTP_TRD *Trd
)
{
UINT8 *CommandDesc;
UINTN TotalLen;
UTP_NOP_OUT_UPIU *NopOutUpiu;
ASSERT ((Private != NULL) && (Trd != NULL));
TotalLen = ROUNDUP8 (sizeof (UTP_NOP_OUT_UPIU)) + ROUNDUP8 (sizeof (UTP_NOP_IN_UPIU));
CommandDesc = UfsPeimAllocateMem (Private->Pool, TotalLen);
if (CommandDesc == NULL) {
return EFI_OUT_OF_RESOURCES;
}
NopOutUpiu = (UTP_NOP_OUT_UPIU*)CommandDesc;
NopOutUpiu->TaskTag = Private->TaskTag++;
//
// Fill UTP_TRD associated fields
// NOTE: Some UFS host controllers request the Nop Out UPIU *MUST* be located at a 64-bit aligned boundary.
//
Trd->Int = UFS_INTERRUPT_COMMAND;
Trd->Dd = 0x00;
Trd->Ct = UFS_STORAGE_COMMAND_TYPE;
Trd->Ocs = UFS_HC_TRD_OCS_INIT_VALUE;
Trd->UcdBa = (UINT32)RShiftU64 ((UINT64)(UINTN)NopOutUpiu, 7);
Trd->UcdBaU = (UINT32)RShiftU64 ((UINT64)(UINTN)NopOutUpiu, 32);
Trd->RuL = (UINT16)DivU64x32 ((UINT64)ROUNDUP8 (sizeof (UTP_NOP_IN_UPIU)), sizeof (UINT32));
Trd->RuO = (UINT16)DivU64x32 ((UINT64)ROUNDUP8 (sizeof (UTP_NOP_OUT_UPIU)), sizeof (UINT32));
return EFI_SUCCESS;
}
/**
Find out available slot in transfer list of a UFS device.
@param[in] Private The pointer to the UFS_PEIM_HC_PRIVATE_DATA data structure.
@param[out] Slot The available slot.
@retval EFI_SUCCESS The available slot was found successfully.
**/
EFI_STATUS
UfsFindAvailableSlotInTrl (
IN UFS_PEIM_HC_PRIVATE_DATA *Private,
OUT UINT8 *Slot
)
{
ASSERT ((Private != NULL) && (Slot != NULL));
//
// The simplest algo to always use slot 0.
// TODO: enhance it to support async transfer with multiple slot.
//
*Slot = 0;
return EFI_SUCCESS;
}
/**
Start specified slot in transfer list of a UFS device.
@param[in] Private The pointer to the UFS_PEIM_HC_PRIVATE_DATA data structure.
@param[in] Slot The slot to be started.
**/
VOID
UfsStartExecCmd (
IN UFS_PEIM_HC_PRIVATE_DATA *Private,
IN UINT8 Slot
)
{
UINTN UfsHcBase;
UINTN Address;
UINT32 Data;
UfsHcBase = Private->UfsHcBase;
Address = UfsHcBase + UFS_HC_UTRLRSR_OFFSET;
Data = MmioRead32 (Address);
if ((Data & UFS_HC_UTRLRSR) != UFS_HC_UTRLRSR) {
MmioWrite32 (Address, UFS_HC_UTRLRSR);
}
Address = UfsHcBase + UFS_HC_UTRLDBR_OFFSET;
MmioWrite32 (Address, BIT0 << Slot);
}
/**
Stop specified slot in transfer list of a UFS device.
@param[in] Private The pointer to the UFS_PEIM_HC_PRIVATE_DATA data structure.
@param[in] Slot The slot to be stop.
**/
VOID
UfsStopExecCmd (
IN UFS_PEIM_HC_PRIVATE_DATA *Private,
IN UINT8 Slot
)
{
UINTN UfsHcBase;
UINTN Address;
UINT32 Data;
UfsHcBase = Private->UfsHcBase;
Address = UfsHcBase + UFS_HC_UTRLDBR_OFFSET;
Data = MmioRead32 (Address);
if ((Data & (BIT0 << Slot)) != 0) {
Address = UfsHcBase + UFS_HC_UTRLCLR_OFFSET;
Data = MmioRead32 (Address);
MmioWrite32 (Address, (Data & ~(BIT0 << Slot)));
}
}
/**
Read or write specified device descriptor of a UFS device.
@param[in] Private The pointer to the UFS_PEIM_HC_PRIVATE_DATA data structure.
@param[in] Read The boolean variable to show r/w direction.
@param[in] DescId The ID of device descriptor.
@param[in] Index The Index of device descriptor.
@param[in] Selector The Selector of device descriptor.
@param[in, out] Descriptor The buffer of device descriptor to be read or written.
@param[in] DescSize The size of device descriptor buffer.
@retval EFI_SUCCESS The device descriptor was read/written successfully.
@retval EFI_DEVICE_ERROR A device error occurred while attempting to r/w the device descriptor.
@retval EFI_TIMEOUT A timeout occurred while waiting for the completion of r/w the device descriptor.
**/
EFI_STATUS
UfsRwDeviceDesc (
IN UFS_PEIM_HC_PRIVATE_DATA *Private,
IN BOOLEAN Read,
IN UINT8 DescId,
IN UINT8 Index,
IN UINT8 Selector,
IN OUT VOID *Descriptor,
IN UINT32 DescSize
)
{
EFI_STATUS Status;
UFS_DEVICE_MANAGEMENT_REQUEST_PACKET Packet;
UINT8 Slot;
UTP_TRD *Trd;
UINTN Address;
UTP_QUERY_RESP_UPIU *QueryResp;
UINT8 *CmdDescBase;
UINT32 CmdDescSize;
UINT16 ReturnDataSize;
ZeroMem (&Packet, sizeof (UFS_DEVICE_MANAGEMENT_REQUEST_PACKET));
if (Read) {
Packet.DataDirection = UfsDataIn;
Packet.InDataBuffer = Descriptor;
Packet.InTransferLength = DescSize;
Packet.Opcode = UtpQueryFuncOpcodeRdDesc;
} else {
Packet.DataDirection = UfsDataOut;
Packet.OutDataBuffer = Descriptor;
Packet.OutTransferLength = DescSize;
Packet.Opcode = UtpQueryFuncOpcodeWrDesc;
}
Packet.DescId = DescId;
Packet.Index = Index;
Packet.Selector = Selector;
Packet.Timeout = UFS_TIMEOUT;
//
// Find out which slot of transfer request list is available.
//
Status = UfsFindAvailableSlotInTrl (Private, &Slot);
if (EFI_ERROR (Status)) {
return Status;
}
Trd = ((UTP_TRD*)Private->UtpTrlBase) + Slot;
//
// Fill transfer request descriptor to this slot.
//
Status = UfsCreateDMCommandDesc (Private, &Packet, Trd);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Check the transfer request result.
//
CmdDescBase = (UINT8 *)(UINTN)(LShiftU64 ((UINT64)Trd->UcdBaU, 32) | LShiftU64 ((UINT64)Trd->UcdBa, 7));
QueryResp = (UTP_QUERY_RESP_UPIU*)(CmdDescBase + Trd->RuO * sizeof (UINT32));
CmdDescSize = Trd->RuO * sizeof (UINT32) + Trd->RuL * sizeof (UINT32);
//
// Start to execute the transfer request.
//
UfsStartExecCmd (Private, Slot);
//
// Wait for the completion of the transfer request.
//
Address = Private->UfsHcBase + UFS_HC_UTRLDBR_OFFSET;
Status = UfsWaitMemSet (Address, BIT0 << Slot, 0, Packet.Timeout);
if (EFI_ERROR (Status)) {
goto Exit;
}
if (QueryResp->QueryResp != 0) {
DumpQueryResponseResult (QueryResp->QueryResp);
Status = EFI_DEVICE_ERROR;
goto Exit;
}
if (Trd->Ocs == 0) {
ReturnDataSize = QueryResp->Tsf.Length;
SwapLittleEndianToBigEndian ((UINT8*)&ReturnDataSize, sizeof (UINT16));
if (Read) {
//
// Make sure the hardware device does not return more data than expected.
//
if (ReturnDataSize > Packet.InTransferLength) {
Status = EFI_DEVICE_ERROR;
goto Exit;
}
CopyMem (Packet.InDataBuffer, (QueryResp + 1), ReturnDataSize);
Packet.InTransferLength = ReturnDataSize;
} else {
Packet.OutTransferLength = ReturnDataSize;
}
} else {
Status = EFI_DEVICE_ERROR;
}
Exit:
UfsStopExecCmd (Private, Slot);
UfsPeimFreeMem (Private->Pool, CmdDescBase, CmdDescSize);
return Status;
}
/**
Read or write specified flag of a UFS device.
@param[in] Private The pointer to the UFS_PEIM_HC_PRIVATE_DATA data structure.
@param[in] Read The boolean variable to show r/w direction.
@param[in] FlagId The ID of flag to be read or written.
@param[in, out] Value The value to set or clear flag.
@retval EFI_SUCCESS The flag was read/written successfully.
@retval EFI_DEVICE_ERROR A device error occurred while attempting to r/w the flag.
@retval EFI_TIMEOUT A timeout occurred while waiting for the completion of r/w the flag.
**/
EFI_STATUS
UfsRwFlags (
IN UFS_PEIM_HC_PRIVATE_DATA *Private,
IN BOOLEAN Read,
IN UINT8 FlagId,
IN OUT UINT8 *Value
)
{
EFI_STATUS Status;
UFS_DEVICE_MANAGEMENT_REQUEST_PACKET Packet;
UINT8 Slot;
UTP_TRD *Trd;
UINTN Address;
UTP_QUERY_RESP_UPIU *QueryResp;
UINT8 *CmdDescBase;
UINT32 CmdDescSize;
if (Value == NULL) {
return EFI_INVALID_PARAMETER;
}
ZeroMem (&Packet, sizeof (UFS_DEVICE_MANAGEMENT_REQUEST_PACKET));
if (Read) {
ASSERT (Value != NULL);
Packet.DataDirection = UfsDataIn;
Packet.Opcode = UtpQueryFuncOpcodeRdFlag;
} else {
Packet.DataDirection = UfsDataOut;
if (*Value == 1) {
Packet.Opcode = UtpQueryFuncOpcodeSetFlag;
} else if (*Value == 0) {
Packet.Opcode = UtpQueryFuncOpcodeClrFlag;
} else {
return EFI_INVALID_PARAMETER;
}
}
Packet.DescId = FlagId;
Packet.Index = 0;
Packet.Selector = 0;
Packet.Timeout = UFS_TIMEOUT;
//
// Find out which slot of transfer request list is available.
//
Status = UfsFindAvailableSlotInTrl (Private, &Slot);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Fill transfer request descriptor to this slot.
//
Trd = ((UTP_TRD*)Private->UtpTrlBase) + Slot;
Status = UfsCreateDMCommandDesc (Private, &Packet, Trd);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Check the transfer request result.
//
CmdDescBase = (UINT8 *)(UINTN)(LShiftU64 ((UINT64)Trd->UcdBaU, 32) | LShiftU64 ((UINT64)Trd->UcdBa, 7));
QueryResp = (UTP_QUERY_RESP_UPIU*)(CmdDescBase + Trd->RuO * sizeof (UINT32));
CmdDescSize = Trd->RuO * sizeof (UINT32) + Trd->RuL * sizeof (UINT32);
//
// Start to execute the transfer request.
//
UfsStartExecCmd (Private, Slot);
//
// Wait for the completion of the transfer request.
//
Address = Private->UfsHcBase + UFS_HC_UTRLDBR_OFFSET;
Status = UfsWaitMemSet (Address, BIT0 << Slot, 0, Packet.Timeout);
if (EFI_ERROR (Status)) {
goto Exit;
}
if (QueryResp->QueryResp != 0) {
DumpQueryResponseResult (QueryResp->QueryResp);
Status = EFI_DEVICE_ERROR;
goto Exit;
}
if (Trd->Ocs == 0) {
//
// The 'FLAG VALUE' field is at byte offset 3 of QueryResp->Tsf.Value
//
*Value = *((UINT8*)&(QueryResp->Tsf.Value) + 3);
} else {
Status = EFI_DEVICE_ERROR;
}
Exit:
UfsStopExecCmd (Private, Slot);
UfsPeimFreeMem (Private->Pool, CmdDescBase, CmdDescSize);
return Status;
}
/**
Set specified flag to 1 on a UFS device.
@param[in] Private The pointer to the UFS_PEIM_HC_PRIVATE_DATA data structure.
@param[in] FlagId The ID of flag to be set.
@retval EFI_SUCCESS The flag was set successfully.
@retval EFI_DEVICE_ERROR A device error occurred while attempting to set the flag.
@retval EFI_TIMEOUT A timeout occurred while waiting for the completion of setting the flag.
**/
EFI_STATUS
UfsSetFlag (
IN UFS_PEIM_HC_PRIVATE_DATA *Private,
IN UINT8 FlagId
)
{
EFI_STATUS Status;
UINT8 Value;
Value = 1;
Status = UfsRwFlags (Private, FALSE, FlagId, &Value);
return Status;
}
/**
Sends NOP IN cmd to a UFS device for initialization process request.
For more details, please refer to UFS 2.0 spec Figure 13.3.
@param[in] Private The pointer to the UFS_PEIM_HC_PRIVATE_DATA data structure.
@retval EFI_SUCCESS The NOP IN command was sent by the host. The NOP OUT response was
received successfully.
@retval EFI_DEVICE_ERROR A device error occurred while attempting to execute NOP IN command.
@retval EFI_OUT_OF_RESOURCES The resource for transfer is not available.
@retval EFI_TIMEOUT A timeout occurred while waiting for the NOP IN command to execute.
**/
EFI_STATUS
UfsExecNopCmds (
IN UFS_PEIM_HC_PRIVATE_DATA *Private
)
{
EFI_STATUS Status;
UINT8 Slot;
UTP_TRD *Trd;
UTP_NOP_IN_UPIU *NopInUpiu;
UINT8 *CmdDescBase;
UINT32 CmdDescSize;
UINTN Address;
//
// Find out which slot of transfer request list is available.
//
Status = UfsFindAvailableSlotInTrl (Private, &Slot);
if (EFI_ERROR (Status)) {
return Status;
}
Trd = ((UTP_TRD*)Private->UtpTrlBase) + Slot;
Status = UfsCreateNopCommandDesc (Private, Trd);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Check the transfer request result.
//
CmdDescBase = (UINT8 *)(UINTN)(LShiftU64 ((UINT64)Trd->UcdBaU, 32) | LShiftU64 ((UINT64)Trd->UcdBa, 7));
NopInUpiu = (UTP_NOP_IN_UPIU*)(CmdDescBase + Trd->RuO * sizeof (UINT32));
CmdDescSize = Trd->RuO * sizeof (UINT32) + Trd->RuL * sizeof (UINT32);
//
// Start to execute the transfer request.
//
UfsStartExecCmd (Private, Slot);
//
// Wait for the completion of the transfer request.
//
Address = Private->UfsHcBase + UFS_HC_UTRLDBR_OFFSET;
Status = UfsWaitMemSet (Address, BIT0 << Slot, 0, UFS_TIMEOUT);
if (EFI_ERROR (Status)) {
goto Exit;
}
if (NopInUpiu->Resp != 0) {
Status = EFI_DEVICE_ERROR;
} else {
Status = EFI_SUCCESS;
}
Exit:
UfsStopExecCmd (Private, Slot);
UfsPeimFreeMem (Private->Pool, CmdDescBase, CmdDescSize);
return Status;
}
/**
Sends a UFS-supported SCSI Request Packet to a UFS device that is attached to the UFS host controller.
@param[in] Private The pointer to the UFS_PEIM_HC_PRIVATE_DATA data structure.
@param[in] Lun The LUN of the UFS device to send the SCSI Request Packet.
@param[in, out] Packet A pointer to the SCSI Request Packet to send to a specified Lun of the
UFS device.
@retval EFI_SUCCESS The SCSI Request Packet was sent by the host. For bi-directional
commands, InTransferLength bytes were transferred from
InDataBuffer. For write and bi-directional commands,
OutTransferLength bytes were transferred by
OutDataBuffer.
@retval EFI_DEVICE_ERROR A device error occurred while attempting to send the SCSI Request
Packet.
@retval EFI_OUT_OF_RESOURCES The resource for transfer is not available.
@retval EFI_TIMEOUT A timeout occurred while waiting for the SCSI Request Packet to execute.
**/
EFI_STATUS
UfsExecScsiCmds (
IN UFS_PEIM_HC_PRIVATE_DATA *Private,
IN UINT8 Lun,
IN OUT UFS_SCSI_REQUEST_PACKET *Packet
)
{
EFI_STATUS Status;
UINT8 Slot;
UTP_TRD *Trd;
UINTN Address;
UINT8 *CmdDescBase;
UINT32 CmdDescSize;
UTP_RESPONSE_UPIU *Response;
UINT16 SenseDataLen;
UINT32 ResTranCount;
VOID *PacketBufferMap;
//
// Find out which slot of transfer request list is available.
//
Status = UfsFindAvailableSlotInTrl (Private, &Slot);
if (EFI_ERROR (Status)) {
return Status;
}
Trd = ((UTP_TRD*)Private->UtpTrlBase) + Slot;
PacketBufferMap = NULL;
//
// Fill transfer request descriptor to this slot.
//
Status = UfsCreateScsiCommandDesc (Private, Lun, Packet, Trd, &PacketBufferMap);
if (EFI_ERROR (Status)) {
return Status;
}
CmdDescBase = (UINT8*)(UINTN)(LShiftU64 ((UINT64)Trd->UcdBaU, 32) | LShiftU64 ((UINT64)Trd->UcdBa, 7));
CmdDescSize = Trd->PrdtO * sizeof (UINT32) + Trd->PrdtL * sizeof (UTP_TR_PRD);
//
// Start to execute the transfer request.
//
UfsStartExecCmd (Private, Slot);
//
// Wait for the completion of the transfer request.
//
Address = Private->UfsHcBase + UFS_HC_UTRLDBR_OFFSET;
Status = UfsWaitMemSet (Address, BIT0 << Slot, 0, Packet->Timeout);
if (EFI_ERROR (Status)) {
goto Exit;
}
//
// Get sense data if exists
//
Response = (UTP_RESPONSE_UPIU*)(CmdDescBase + Trd->RuO * sizeof (UINT32));
SenseDataLen = Response->SenseDataLen;
SwapLittleEndianToBigEndian ((UINT8*)&SenseDataLen, sizeof (UINT16));
if ((Packet->SenseDataLength != 0) && (Packet->SenseData != NULL)) {
//
// Make sure the hardware device does not return more data than expected.
//
if (SenseDataLen <= Packet->SenseDataLength) {
CopyMem (Packet->SenseData, Response->SenseData, SenseDataLen);
Packet->SenseDataLength = (UINT8)SenseDataLen;
} else {
Packet->SenseDataLength = 0;
}
}
//
// Check the transfer request result.
//
if (Response->Response != 0) {
DEBUG ((EFI_D_ERROR, "UfsExecScsiCmds() fails with Target Failure\n"));
Status = EFI_DEVICE_ERROR;
goto Exit;
}
if (Trd->Ocs == 0) {
if (Packet->DataDirection == UfsDataIn) {
if ((Response->Flags & BIT5) == BIT5) {
ResTranCount = Response->ResTranCount;
SwapLittleEndianToBigEndian ((UINT8*)&ResTranCount, sizeof (UINT32));
Packet->InTransferLength -= ResTranCount;
}
} else if (Packet->DataDirection == UfsDataOut) {
if ((Response->Flags & BIT5) == BIT5) {
ResTranCount = Response->ResTranCount;
SwapLittleEndianToBigEndian ((UINT8*)&ResTranCount, sizeof (UINT32));
Packet->OutTransferLength -= ResTranCount;
}
}
} else {
Status = EFI_DEVICE_ERROR;
}
Exit:
if (PacketBufferMap != NULL) {
IoMmuUnmap (PacketBufferMap);
}
UfsStopExecCmd (Private, Slot);
UfsPeimFreeMem (Private->Pool, CmdDescBase, CmdDescSize);
return Status;
}
/**
Sent UIC DME_LINKSTARTUP command to start the link startup procedure.
@param[in] Private The pointer to the UFS_PEIM_HC_PRIVATE_DATA data structure.
@param[in] UicOpcode The opcode of the UIC command.
@param[in] Arg1 The value for 1st argument of the UIC command.
@param[in] Arg2 The value for 2nd argument of the UIC command.
@param[in] Arg3 The value for 3rd argument of the UIC command.
@return EFI_SUCCESS Successfully execute this UIC command and detect attached UFS device.
@return EFI_DEVICE_ERROR Fail to execute this UIC command and detect attached UFS device.
@return EFI_NOT_FOUND The presence of the UFS device isn't detected.
**/
EFI_STATUS
UfsExecUicCommands (
IN UFS_PEIM_HC_PRIVATE_DATA *Private,
IN UINT8 UicOpcode,
IN UINT32 Arg1,
IN UINT32 Arg2,
IN UINT32 Arg3
)
{
EFI_STATUS Status;
UINTN Address;
UINT32 Data;
UINTN UfsHcBase;
UfsHcBase = Private->UfsHcBase;
Address = UfsHcBase + UFS_HC_IS_OFFSET;
Data = MmioRead32 (Address);
if ((Data & UFS_HC_IS_UCCS) == UFS_HC_IS_UCCS) {
//
// Clear IS.BIT10 UIC Command Completion Status (UCCS) at first.
//
MmioWrite32 (Address, Data);
}
//
// When programming UIC command registers, host software shall set the register UICCMD
// only after all the UIC command argument registers (UICCMDARG1, UICCMDARG2 and UICCMDARG3)
// are set.
//
Address = UfsHcBase + UFS_HC_UCMD_ARG1_OFFSET;
MmioWrite32 (Address, Arg1);
Address = UfsHcBase + UFS_HC_UCMD_ARG2_OFFSET;
MmioWrite32 (Address, Arg2);
Address = UfsHcBase + UFS_HC_UCMD_ARG3_OFFSET;
MmioWrite32 (Address, Arg3);
//
// Host software shall only set the UICCMD if HCS.UCRDY is set to 1.
//
Address = Private->UfsHcBase + UFS_HC_STATUS_OFFSET;
Status = UfsWaitMemSet (Address, UFS_HC_HCS_UCRDY, UFS_HC_HCS_UCRDY, UFS_TIMEOUT);
if (EFI_ERROR (Status)) {
return Status;
}
Address = UfsHcBase + UFS_HC_UIC_CMD_OFFSET;
MmioWrite32 (Address, (UINT32)UicOpcode);
//
// UFS 2.0 spec section 5.3.1 Offset:0x20 IS.Bit10 UIC Command Completion Status (UCCS)
// This bit is set to '1' by the host controller upon completion of a UIC command.
//
Address = UfsHcBase + UFS_HC_IS_OFFSET;
Data = MmioRead32 (Address);
Status = UfsWaitMemSet (Address, UFS_HC_IS_UCCS, UFS_HC_IS_UCCS, UFS_TIMEOUT);
if (EFI_ERROR (Status)) {
return Status;
}
if (UicOpcode != UfsUicDmeReset) {
Address = UfsHcBase + UFS_HC_UCMD_ARG2_OFFSET;
Data = MmioRead32 (Address);
if ((Data & 0xFF) != 0) {
DEBUG_CODE_BEGIN();
DumpUicCmdExecResult (UicOpcode, (UINT8)(Data & 0xFF));
DEBUG_CODE_END();
return EFI_DEVICE_ERROR;
}
}
//
// Check value of HCS.DP and make sure that there is a device attached to the Link.
//
Address = UfsHcBase + UFS_HC_STATUS_OFFSET;
Data = MmioRead32 (Address);
if ((Data & UFS_HC_HCS_DP) == 0) {
Address = UfsHcBase + UFS_HC_IS_OFFSET;
Status = UfsWaitMemSet (Address, UFS_HC_IS_ULSS, UFS_HC_IS_ULSS, UFS_TIMEOUT);
if (EFI_ERROR (Status)) {
return EFI_DEVICE_ERROR;
}
return EFI_NOT_FOUND;
}
DEBUG ((EFI_D_INFO, "UfsblockioPei: found a attached UFS device\n"));
return EFI_SUCCESS;
}
/**
Enable the UFS host controller for accessing.
@param[in] Private The pointer to the UFS_PEIM_HC_PRIVATE_DATA data structure.
@retval EFI_SUCCESS The UFS host controller enabling was executed successfully.
@retval EFI_DEVICE_ERROR A device error occurred while enabling the UFS host controller.
**/
EFI_STATUS
UfsEnableHostController (
IN UFS_PEIM_HC_PRIVATE_DATA *Private
)
{
EFI_STATUS Status;
UINTN Address;
UINT32 Data;
//
// UFS 2.0 spec section 7.1.1 - Host Controller Initialization
//
// Reinitialize the UFS host controller if HCE bit of HC register is set.
//
Address = Private->UfsHcBase + UFS_HC_ENABLE_OFFSET;
Data = MmioRead32 (Address);
if ((Data & UFS_HC_HCE_EN) == UFS_HC_HCE_EN) {
//
// Write a 0 to the HCE register at first to disable the host controller.
//
MmioWrite32 (Address, 0);
//
// Wait until HCE is read as '0' before continuing.
//
Status = UfsWaitMemSet (Address, UFS_HC_HCE_EN, 0, UFS_TIMEOUT);
if (EFI_ERROR (Status)) {
return EFI_DEVICE_ERROR;
}
}
//
// Write a 1 to the HCE register to enable the UFS host controller.
//
MmioWrite32 (Address, UFS_HC_HCE_EN);
//
// Wait until HCE is read as '1' before continuing.
//
Status = UfsWaitMemSet (Address, UFS_HC_HCE_EN, UFS_HC_HCE_EN, UFS_TIMEOUT);
if (EFI_ERROR (Status)) {
return EFI_DEVICE_ERROR;
}
return EFI_SUCCESS;
}
/**
Detect if a UFS device attached.
@param[in] Private The pointer to the UFS_PEIM_HC_PRIVATE_DATA data structure.
@retval EFI_SUCCESS The UFS device detection was executed successfully.
@retval EFI_NOT_FOUND Not found a UFS device attached.
@retval EFI_DEVICE_ERROR A device error occurred while detecting the UFS device.
**/
EFI_STATUS
UfsDeviceDetection (
IN UFS_PEIM_HC_PRIVATE_DATA *Private
)
{
UINTN Retry;
EFI_STATUS Status;
//
// Start UFS device detection.
// Try up to 3 times for establishing data link with device.
//
for (Retry = 0; Retry < 3; Retry++) {
Status = UfsExecUicCommands (Private, UfsUicDmeLinkStartup, 0, 0, 0);
if (!EFI_ERROR (Status)) {
break;
}
if (Status == EFI_NOT_FOUND) {
continue;
}
return EFI_DEVICE_ERROR;
}
if (Retry == 3) {
return EFI_NOT_FOUND;
}
return EFI_SUCCESS;
}
/**
Initialize UFS task management request list related h/w context.
@param[in] Private The pointer to the UFS_PEIM_HC_PRIVATE_DATA data structure.
@retval EFI_SUCCESS The UFS task management list was initialzed successfully.
@retval EFI_DEVICE_ERROR The initialization fails.
**/
EFI_STATUS
UfsInitTaskManagementRequestList (
IN UFS_PEIM_HC_PRIVATE_DATA *Private
)
{
UINTN Address;
UINT32 Data;
UINT8 Nutmrs;
VOID *CmdDescHost;
EFI_PHYSICAL_ADDRESS CmdDescPhyAddr;
VOID *CmdDescMapping;
EFI_STATUS Status;
//
// Initial h/w and s/w context for future operations.
//
Address = Private->UfsHcBase + UFS_HC_CAP_OFFSET;
Data = MmioRead32 (Address);
Private->Capabilities = Data;
//
// Allocate and initialize UTP Task Management Request List.
//
Nutmrs = (UINT8) (RShiftU64 ((Private->Capabilities & UFS_HC_CAP_NUTMRS), 16) + 1);
Status = IoMmuAllocateBuffer (
EFI_SIZE_TO_PAGES (Nutmrs * sizeof (UTP_TMRD)),
&CmdDescHost,
&CmdDescPhyAddr,
&CmdDescMapping
);
if (EFI_ERROR (Status)) {
return EFI_DEVICE_ERROR;
}
ZeroMem (CmdDescHost, EFI_PAGES_TO_SIZE (EFI_SIZE_TO_PAGES (Nutmrs * sizeof (UTP_TMRD))));
//
// Program the UTP Task Management Request List Base Address and UTP Task Management
// Request List Base Address with a 64-bit address allocated at step 6.
//
Address = Private->UfsHcBase + UFS_HC_UTMRLBA_OFFSET;
MmioWrite32 (Address, (UINT32)(UINTN)CmdDescPhyAddr);
Address = Private->UfsHcBase + UFS_HC_UTMRLBAU_OFFSET;
MmioWrite32 (Address, (UINT32)RShiftU64 ((UINT64)CmdDescPhyAddr, 32));
Private->UtpTmrlBase = (VOID*)(UINTN)CmdDescHost;
Private->Nutmrs = Nutmrs;
Private->TmrlMapping = CmdDescMapping;
//
// Enable the UTP Task Management Request List by setting the UTP Task Management
// Request List RunStop Register (UTMRLRSR) to '1'.
//
Address = Private->UfsHcBase + UFS_HC_UTMRLRSR_OFFSET;
MmioWrite32 (Address, UFS_HC_UTMRLRSR);
return EFI_SUCCESS;
}
/**
Initialize UFS transfer request list related h/w context.
@param[in] Private The pointer to the UFS_PEIM_HC_PRIVATE_DATA data structure.
@retval EFI_SUCCESS The UFS transfer list was initialzed successfully.
@retval EFI_DEVICE_ERROR The initialization fails.
**/
EFI_STATUS
UfsInitTransferRequestList (
IN UFS_PEIM_HC_PRIVATE_DATA *Private
)
{
UINTN Address;
UINT32 Data;
UINT8 Nutrs;
VOID *CmdDescHost;
EFI_PHYSICAL_ADDRESS CmdDescPhyAddr;
VOID *CmdDescMapping;
EFI_STATUS Status;
//
// Initial h/w and s/w context for future operations.
//
Address = Private->UfsHcBase + UFS_HC_CAP_OFFSET;
Data = MmioRead32 (Address);
Private->Capabilities = Data;
//
// Allocate and initialize UTP Transfer Request List.
//
Nutrs = (UINT8)((Private->Capabilities & UFS_HC_CAP_NUTRS) + 1);
Status = IoMmuAllocateBuffer (
EFI_SIZE_TO_PAGES (Nutrs * sizeof (UTP_TRD)),
&CmdDescHost,
&CmdDescPhyAddr,
&CmdDescMapping
);
if (EFI_ERROR (Status)) {
return EFI_DEVICE_ERROR;
}
ZeroMem (CmdDescHost, EFI_PAGES_TO_SIZE (EFI_SIZE_TO_PAGES (Nutrs * sizeof (UTP_TRD))));
//
// Program the UTP Transfer Request List Base Address and UTP Transfer Request List
// Base Address with a 64-bit address allocated at step 8.
//
Address = Private->UfsHcBase + UFS_HC_UTRLBA_OFFSET;
MmioWrite32 (Address, (UINT32)(UINTN)CmdDescPhyAddr);
Address = Private->UfsHcBase + UFS_HC_UTRLBAU_OFFSET;
MmioWrite32 (Address, (UINT32)RShiftU64 ((UINT64)CmdDescPhyAddr, 32));
Private->UtpTrlBase = (VOID*)(UINTN)CmdDescHost;
Private->Nutrs = Nutrs;
Private->TrlMapping = CmdDescMapping;
//
// Enable the UTP Transfer Request List by setting the UTP Transfer Request List
// RunStop Register (UTRLRSR) to '1'.
//
Address = Private->UfsHcBase + UFS_HC_UTRLRSR_OFFSET;
MmioWrite32 (Address, UFS_HC_UTRLRSR);
return EFI_SUCCESS;
}
/**
Initialize the UFS host controller.
@param[in] Private The pointer to the UFS_PEIM_HC_PRIVATE_DATA data structure.
@retval EFI_SUCCESS The Ufs Host Controller is initialized successfully.
@retval Others A device error occurred while initializing the controller.
**/
EFI_STATUS
UfsControllerInit (
IN UFS_PEIM_HC_PRIVATE_DATA *Private
)
{
EFI_STATUS Status;
Status = UfsEnableHostController (Private);
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_ERROR, "UfsDevicePei: Enable Host Controller Fails, Status = %r\n", Status));
return Status;
}
Status = UfsDeviceDetection (Private);
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_ERROR, "UfsDevicePei: Device Detection Fails, Status = %r\n", Status));
return Status;
}
Status = UfsInitTaskManagementRequestList (Private);
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_ERROR, "UfsDevicePei: Task management list initialization Fails, Status = %r\n", Status));
return Status;
}
Status = UfsInitTransferRequestList (Private);
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_ERROR, "UfsDevicePei: Transfer list initialization Fails, Status = %r\n", Status));
if (Private->TmrlMapping != NULL) {
IoMmuFreeBuffer (
EFI_SIZE_TO_PAGES (Private->Nutmrs * sizeof (UTP_TMRD)),
Private->UtpTmrlBase,
Private->TmrlMapping
);
Private->TmrlMapping = NULL;
}
return Status;
}
DEBUG ((EFI_D_INFO, "UfsDevicePei Finished\n"));
return EFI_SUCCESS;
}
/**
Stop the UFS host controller.
@param[in] Private The pointer to the UFS_PEIM_HC_PRIVATE_DATA data structure.
@retval EFI_SUCCESS The Ufs Host Controller is stopped successfully.
@retval Others A device error occurred while stopping the controller.
**/
EFI_STATUS
UfsControllerStop (
IN UFS_PEIM_HC_PRIVATE_DATA *Private
)
{
EFI_STATUS Status;
UINTN Address;
UINT32 Data;
//
// Enable the UTP Task Management Request List by setting the UTP Task Management
// Request List RunStop Register (UTMRLRSR) to '1'.
//
Address = Private->UfsHcBase + UFS_HC_UTMRLRSR_OFFSET;
MmioWrite32 (Address, 0);
//
// Enable the UTP Transfer Request List by setting the UTP Transfer Request List
// RunStop Register (UTRLRSR) to '1'.
//
Address = Private->UfsHcBase + UFS_HC_UTRLRSR_OFFSET;
MmioWrite32 (Address, 0);
//
// Write a 0 to the HCE register in order to disable the host controller.
//
Address = Private->UfsHcBase + UFS_HC_ENABLE_OFFSET;
Data = MmioRead32 (Address);
ASSERT ((Data & UFS_HC_HCE_EN) == UFS_HC_HCE_EN);
MmioWrite32 (Address, 0);
//
// Wait until HCE is read as '0' before continuing.
//
Status = UfsWaitMemSet (Address, UFS_HC_HCE_EN, 0, UFS_TIMEOUT);
if (EFI_ERROR (Status)) {
return EFI_DEVICE_ERROR;
}
DEBUG ((EFI_D_INFO, "UfsDevicePei: Stop the UFS Host Controller\n"));
return EFI_SUCCESS;
}