From: Pankaj Bansal <pankaj.ban...@nxp.com>
I2c lib contains the i2c controller functionality. this can be used
in I2c DXE driver to communicate with i2c devices.
Signed-off-by: Pankaj Bansal <pankaj.ban...@nxp.com>
---
Silicon/NXP/Drivers/I2cDxe/I2cDxe.c | 526 +-------------------------
Silicon/NXP/Drivers/I2cDxe/I2cDxe.h | 44 +--
Silicon/NXP/Drivers/I2cDxe/I2cDxe.inf | 9 +-
3 files changed, 16 insertions(+), 563 deletions(-)
diff --git a/Silicon/NXP/Drivers/I2cDxe/I2cDxe.c
b/Silicon/NXP/Drivers/I2cDxe/I2cDxe.c
index 853c426fbca2..848e707c1673 100644
--- a/Silicon/NXP/Drivers/I2cDxe/I2cDxe.c
+++ b/Silicon/NXP/Drivers/I2cDxe/I2cDxe.c
@@ -1,7 +1,7 @@
/** I2cDxe.c
I2c driver APIs for read, write, initialize, set speed and reset
- Copyright 2017-2019 NXP
+ Copyright 2017-2020 NXP
SPDX-License-Identifier: BSD-2-Clause-Patent
@@ -10,6 +10,7 @@
#include <Library/BaseMemoryLib.h>
#include <Library/DebugLib.h>
#include <Library/DevicePathLib.h>
+#include <Library/I2cLib.h>
#include <Library/IoLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/TimerLib.h>
@@ -25,444 +26,6 @@ STATIC CONST EFI_I2C_CONTROLLER_CAPABILITIES
mI2cControllerCapabilities = {
0
};
-STATIC CONST CLK_DIV mClkDiv[] = {
- { 20, 0x00 }, { 22, 0x01 }, { 24, 0x02 }, { 26, 0x03 },
- { 28, 0x04 }, { 30, 0x05 }, { 32, 0x09 }, { 34, 0x06 },
- { 36, 0x0A }, { 40, 0x07 }, { 44, 0x0C }, { 48, 0x0D },
- { 52, 0x43 }, { 56, 0x0E }, { 60, 0x45 }, { 64, 0x12 },
- { 68, 0x0F }, { 72, 0x13 }, { 80, 0x14 }, { 88, 0x15 },
- { 96, 0x19 }, { 104, 0x16 }, { 112, 0x1A }, { 128, 0x17 },
- { 136, 0x4F }, { 144, 0x1C }, { 160, 0x1D }, { 176, 0x55 },
- { 192, 0x1E }, { 208, 0x56 }, { 224, 0x22 }, { 228, 0x24 },
- { 240, 0x1F }, { 256, 0x23 }, { 288, 0x5C }, { 320, 0x25 },
- { 384, 0x26 }, { 448, 0x2A }, { 480, 0x27 }, { 512, 0x2B },
- { 576, 0x2C }, { 640, 0x2D }, { 768, 0x31 }, { 896, 0x32 },
- { 960, 0x2F }, { 1024, 0x33 }, { 1152, 0x34 }, { 1280, 0x35 },
- { 1536, 0x36 }, { 1792, 0x3A }, { 1920, 0x37 }, { 2048, 0x3B },
- { 2304, 0x3C }, { 2560, 0x3D }, { 3072, 0x3E }, { 3584, 0x7A },
- { 3840, 0x3F }, { 4096, 0x7B }, { 5120, 0x7D }, { 6144, 0x7E }
-};
-
-/**
- Calculate and return proper clock divider
-
- @param Rate desired clock rate
-
- @retval ClkDiv Index value used to get Bus Clock Rate
-
-**/
-STATIC
-UINT8
-GetClkDivIndex (
- IN UINT32 Rate
- )
-{
- UINTN ClkRate;
- UINT32 Div;
- UINT8 Index;
-
- Index = 0;
- ClkRate = GetBusFrequency ();
-
- Div = (ClkRate + Rate - 1) / Rate;
-
- if (Div < mClkDiv[0].SCLDivider) {
- return 0;
- }
-
- do {
- if (mClkDiv[Index].SCLDivider >= Div ) {
- return Index;
- }
- Index++;
- } while (Index < ARRAY_SIZE (mClkDiv));
-
- return (ARRAY_SIZE (mClkDiv) - 1);
-}
-
-/**
- Function used to check if i2c is in mentioned state or not
-
- @param I2cRegs Pointer to I2C registers
- @param State i2c state need to be checked
-
- @retval EFI_NOT_READY Arbitration was lost
- @retval EFI_TIMEOUT Timeout occured
- @retval CurrState Value of state register
-
-**/
-STATIC
-EFI_STATUS
-WaitForI2cState (
- IN I2C_REGS *I2cRegs,
- IN UINT32 State
- )
-{
- UINT8 CurrState;
- UINT64 Count;
-
- for (Count = 0; Count < I2C_STATE_RETRIES; Count++) {
- MemoryFence ();
- CurrState = MmioRead8 ((UINTN)&I2cRegs->I2cSr);
- if (CurrState & I2C_SR_IAL) {
- MmioWrite8 ((UINTN)&I2cRegs->I2cSr, CurrState | I2C_SR_IAL);
- return EFI_NOT_READY;
- }
-
- if ((CurrState & (State >> 8)) == (UINT8)State) {
- return CurrState;
- }
- }
-
- return EFI_TIMEOUT;
-}
-
-/**
- Function to transfer byte on i2c
-
- @param I2cRegs Pointer to i2c registers
- @param Byte Byte to be transferred on i2c bus
-
- @retval EFI_NOT_READY Arbitration was lost
- @retval EFI_TIMEOUT Timeout occured
- @retval EFI_NOT_FOUND ACK was not recieved
- @retval EFI_SUCCESS Data transfer was succesful
-
-**/
-STATIC
-EFI_STATUS
-TransferByte (
- IN I2C_REGS *I2cRegs,
- IN UINT8 Byte
- )
-{
- EFI_STATUS RetVal;
-
- MmioWrite8 ((UINTN)&I2cRegs->I2cSr, I2C_SR_IIF_CLEAR);
- MmioWrite8 ((UINTN)&I2cRegs->I2cDr, Byte);
-
- RetVal = WaitForI2cState (I2cRegs, IIF);
- if ((RetVal == EFI_TIMEOUT) || (RetVal == EFI_NOT_READY)) {
- return RetVal;
- }
-
- if (RetVal & I2C_SR_RX_NO_AK) {
- return EFI_NOT_FOUND;
- }
-
- return EFI_SUCCESS;
-}
-
-/**
- Function to stop transaction on i2c bus
-
- @param I2cRegs Pointer to i2c registers
-
- @retval EFI_NOT_READY Arbitration was lost
- @retval EFI_TIMEOUT Timeout occured
- @retval EFI_SUCCESS Stop operation was successful
-
-**/
-STATIC
-EFI_STATUS
-I2cStop (
- IN I2C_REGS *I2cRegs
- )
-{
- EFI_STATUS RetVal;
- UINT32 Temp;
-
- Temp = MmioRead8 ((UINTN)&I2cRegs->I2cCr);
-
- Temp &= ~(I2C_CR_MSTA | I2C_CR_MTX);
- MmioWrite8 ((UINTN)&I2cRegs->I2cCr, Temp);
-
- RetVal = WaitForI2cState (I2cRegs, BUS_IDLE);
-
- if (RetVal < 0) {
- return RetVal;
- } else {
- return EFI_SUCCESS;
- }
-}
-
-/**
- Function to send start signal, Chip Address and
- memory offset
-
- @param I2cRegs Pointer to i2c base registers
- @param Chip Chip Address
- @param Offset Slave memory's offset
- @param AddressLength length of chip address
-
- @retval EFI_NOT_READY Arbitration lost
- @retval EFI_TIMEOUT Failed to initialize data transfer in predefined
time
- @retval EFI_NOT_FOUND ACK was not recieved
- @retval EFI_SUCCESS Read was successful
-
-**/
-STATIC
-EFI_STATUS
-InitTransfer (
- IN I2C_REGS *I2cRegs,
- IN UINT8 Chip,
- IN UINT32 Offset,
- IN INT32 AddressLength
- )
-{
- UINT32 Temp;
- EFI_STATUS RetVal;
-
- // Enable I2C controller
- if (MmioRead8 ((UINTN)&I2cRegs->I2cCr) & I2C_CR_IDIS) {
- MmioWrite8 ((UINTN)&I2cRegs->I2cCr, I2C_CR_IEN);
- }
-
- if (MmioRead8 ((UINTN)&I2cRegs->I2cAdr) == (Chip << 1)) {
- MmioWrite8 ((UINTN)&I2cRegs->I2cAdr, (Chip << 1) ^ 2);
- }
-
- MmioWrite8 ((UINTN)&I2cRegs->I2cSr, I2C_SR_IIF_CLEAR);
- RetVal = WaitForI2cState (I2cRegs, BUS_IDLE);
- if ((RetVal == EFI_TIMEOUT) || (RetVal == EFI_NOT_READY)) {
- return RetVal;
- }
-
- // Start I2C transaction
- Temp = MmioRead8 ((UINTN)&I2cRegs->I2cCr);
- // set to master mode
- Temp |= I2C_CR_MSTA;
- MmioWrite8 ((UINTN)&I2cRegs->I2cCr, Temp);
-
- RetVal = WaitForI2cState (I2cRegs, BUS_BUSY);
- if ((RetVal == EFI_TIMEOUT) || (RetVal == EFI_NOT_READY)) {
- return RetVal;
- }
-
- Temp |= I2C_CR_MTX | I2C_CR_TX_NO_AK;
- MmioWrite8 ((UINTN)&I2cRegs->I2cCr, Temp);
-
- // write slave Address
- RetVal = TransferByte (I2cRegs, Chip << 1);
- if (RetVal != EFI_SUCCESS) {
- return RetVal;
- }
-
- if (AddressLength >= 0) {
- while (AddressLength--) {
- RetVal = TransferByte (I2cRegs, (Offset >> (AddressLength * 8)) & 0xff);
- if (RetVal != EFI_SUCCESS)
- return RetVal;
- }
- }
- return EFI_SUCCESS;
-}
-
-/**
- Function to check if i2c bus is idle
-
- @param Base Pointer to base address of I2c controller
-
- @retval EFI_SUCCESS
-
-**/
-STATIC
-INT32
-I2cBusIdle (
- IN VOID *Base
- )
-{
- return EFI_SUCCESS;
-}
-
-/**
- Function to initiate data transfer on i2c bus
-
- @param I2cRegs Pointer to i2c base registers
- @param Chip Chip Address
- @param Offset Slave memory's offset
- @param AddressLength length of chip address
-
- @retval EFI_NOT_READY Arbitration lost
- @retval EFI_TIMEOUT Failed to initialize data transfer in predefined
time
- @retval EFI_NOT_FOUND ACK was not recieved
- @retval EFI_SUCCESS Read was successful
-
-**/
-STATIC
-EFI_STATUS
-InitDataTransfer (
- IN I2C_REGS *I2cRegs,
- IN UINT8 Chip,
- IN UINT32 Offset,
- IN INT32 AddressLength
- )
-{
- EFI_STATUS RetVal;
- INT32 Retry;
-
- for (Retry = 0; Retry < RETRY_COUNT; Retry++) {
- RetVal = InitTransfer (I2cRegs, Chip, Offset, AddressLength);
- if (RetVal == EFI_SUCCESS) {
- return EFI_SUCCESS;
- }
-
- I2cStop (I2cRegs);
-
- if (EFI_NOT_FOUND == RetVal) {
- return RetVal;
- }
-
- // Disable controller
- if (RetVal != EFI_NOT_READY) {
- MmioWrite8 ((UINTN)&I2cRegs->I2cCr, I2C_CR_IDIS);
- }
-
- if (I2cBusIdle (I2cRegs) < 0) {
- break;
- }
- }
- return RetVal;
-}
-
-/**
- Function to read data using i2c bus
-
- @param BaseAddr I2c Controller Base Address
- @param Chip Address of slave device from where data to be read
- @param Offset Offset of slave memory
- @param AddressLength Address length of slave
- @param Buffer A pointer to the destination buffer for the data
- @param Len Length of data to be read
-
- @retval EFI_NOT_READY Arbitration lost
- @retval EFI_TIMEOUT Failed to initialize data transfer in predefined
time
- @retval EFI_NOT_FOUND ACK was not recieved
- @retval EFI_SUCCESS Read was successful
-
-**/
-STATIC
-EFI_STATUS
-I2cDataRead (
- IN UINTN BaseAddr,
- IN UINT8 Chip,
- IN UINT32 Offset,
- IN UINT32 AddressLength,
- IN UINT8 *Buffer,
- IN UINT32 Len
- )
-{
- EFI_STATUS RetVal;
- UINT32 Temp;
- INT32 I;
- I2C_REGS *I2cRegs;
-
- I2cRegs = (I2C_REGS *)(BaseAddr);
-
- RetVal = InitDataTransfer (I2cRegs, Chip, Offset, AddressLength);
- if (RetVal != EFI_SUCCESS) {
- return RetVal;
- }
-
- Temp = MmioRead8 ((UINTN)&I2cRegs->I2cCr);
- Temp |= I2C_CR_RSTA;
- MmioWrite8 ((UINTN)&I2cRegs->I2cCr, Temp);
-
- RetVal = TransferByte (I2cRegs, (Chip << 1) | 1);
- if (RetVal != EFI_SUCCESS) {
- I2cStop (I2cRegs);
- return RetVal;
- }
-
- // setup bus to read data
- Temp = MmioRead8 ((UINTN)&I2cRegs->I2cCr);
- Temp &= ~(I2C_CR_MTX | I2C_CR_TX_NO_AK);
- if (Len == 1) {
- Temp |= I2C_CR_TX_NO_AK;
- }
-
- MmioWrite8 ((UINTN)&I2cRegs->I2cCr, Temp);
- MmioWrite8 ((UINTN)&I2cRegs->I2cSr, I2C_SR_IIF_CLEAR);
-
- // Dummy Read to initiate recieve operation
- MmioRead8 ((UINTN)&I2cRegs->I2cDr);
-
- for (I = 0; I < Len; I++) {
- RetVal = WaitForI2cState (I2cRegs, IIF);
- if ((RetVal == EFI_TIMEOUT) || (RetVal == EFI_NOT_READY)) {
- I2cStop (I2cRegs);
- return RetVal;
- }
- //
- // It must generate STOP before read I2DR to prevent
- // controller from generating another clock cycle
- //
- if (I == (Len - 1)) {
- I2cStop (I2cRegs);
- } else if (I == (Len - 2)) {
- Temp = MmioRead8 ((UINTN)&I2cRegs->I2cCr);
- Temp |= I2C_CR_TX_NO_AK;
- MmioWrite8 ((UINTN)&I2cRegs->I2cCr, Temp);
- }
- MmioWrite8 ((UINTN)&I2cRegs->I2cSr, I2C_SR_IIF_CLEAR);
- Buffer[I] = MmioRead8 ((UINTN)&I2cRegs->I2cDr);
- }
-
- I2cStop (I2cRegs);
-
- return EFI_SUCCESS;
-}
-
-/**
- Function to write data using i2c bus
-
- @param BaseAddr I2c Controller Base Address
- @param Chip Address of slave device where data to be written
- @param Offset Offset of slave memory
- @param AddressLength Address length of slave
- @param Buffer A pointer to the source buffer for the data
- @param Len Length of data to be write
-
- @retval EFI_NOT_READY Arbitration lost
- @retval EFI_TIMEOUT Failed to initialize data transfer in predefined
time
- @retval EFI_NOT_FOUND ACK was not recieved
- @retval EFI_SUCCESS Read was successful
-
-**/
-STATIC
-EFI_STATUS
-I2cDataWrite (
- IN UINTN BaseAddr,
- IN UINT8 Chip,
- IN UINT32 Offset,
- IN INT32 AddressLength,
- OUT UINT8 *Buffer,
- IN INT32 Len
- )
-{
- EFI_STATUS RetVal;
- I2C_REGS *I2cRegs;
- INT32 I;
-
- I2cRegs = (I2C_REGS *)BaseAddr;
-
- RetVal = InitDataTransfer (I2cRegs, Chip, Offset, AddressLength);
- if (RetVal != EFI_SUCCESS) {
- return RetVal;
- }
-
- // Write operation
- for (I = 0; I < Len; I++) {
- RetVal = TransferByte (I2cRegs, Buffer[I]);
- if (RetVal != EFI_SUCCESS) {
- break;
- }
- }
-
- I2cStop (I2cRegs);
- return RetVal;
-}
-
/**
Function to set i2c bus frequency
@@ -479,22 +42,17 @@ SetBusFrequency (
IN OUT UINTN *BusClockHertz
)
{
- I2C_REGS *I2cRegs;
- UINT8 ClkId;
- UINT8 SpeedId;
+ UINTN I2cBase;
+ UINT64 I2cClock;
NXP_I2C_MASTER *I2c;
I2c = NXP_I2C_FROM_THIS (This);
- I2cRegs = (I2C_REGS *)(I2c->Dev->Resources[0].AddrRangeMin);
+ I2cBase = (UINTN)(I2c->Dev->Resources[0].AddrRangeMin);
- ClkId = GetClkDivIndex (*BusClockHertz);
- SpeedId = mClkDiv[ClkId].BusClockRate;
+ I2cClock = GetBusFrequency ();
- // Store divider value
- MmioWrite8 ((UINTN)&I2cRegs->I2cFdr, SpeedId);
-
- MemoryFence ();
+ I2cInitialize (I2cBase, I2cClock, *BusClockHertz);
return EFI_SUCCESS;
}
@@ -513,19 +71,6 @@ Reset (
IN CONST EFI_I2C_MASTER_PROTOCOL *This
)
{
- I2C_REGS *I2cRegs;
- NXP_I2C_MASTER *I2c;
-
- I2c = NXP_I2C_FROM_THIS (This);
-
- I2cRegs = (I2C_REGS *)(I2c->Dev->Resources[0].AddrRangeMin);
-
- // Reset module
- MmioWrite8 ((UINTN)&I2cRegs->I2cCr, I2C_CR_IDIS);
- MmioWrite8 ((UINTN)&I2cRegs->I2cSr, 0);
-
- MemoryFence ();
-
return EFI_SUCCESS;
}
@@ -540,62 +85,17 @@ StartRequest (
OUT EFI_STATUS *I2cStatus OPTIONAL
)
{
- NXP_I2C_MASTER *I2c;
- UINT32 Count;
- INT32 RetVal;
- UINT32 Length;
- UINT8 *Buffer;
- UINT32 Flag;
- UINT32 RegAddress;
- UINT32 OffsetLength;
-
- RegAddress = 0;
+ NXP_I2C_MASTER *I2c;
+ UINTN I2cBase;
+ EFI_STATUS Status;
I2c = NXP_I2C_FROM_THIS (This);
- if (RequestPacket->OperationCount <= 0) {
- DEBUG ((DEBUG_ERROR,"%a: Operation count is not valid %d\n",
- __FUNCTION__, RequestPacket->OperationCount));
- return EFI_INVALID_PARAMETER;
- }
+ I2cBase = (UINTN)(I2c->Dev->Resources[0].AddrRangeMin);
- OffsetLength = RequestPacket->Operation[0].LengthInBytes;
- RegAddress = *RequestPacket->Operation[0].Buffer;
+ Status = I2cBusXfer (I2cBase, SlaveAddress, RequestPacket);
- for (Count = 1; Count < RequestPacket->OperationCount; Count++) {
- Flag = RequestPacket->Operation[Count].Flags;
- Length = RequestPacket->Operation[Count].LengthInBytes;
- Buffer = RequestPacket->Operation[Count].Buffer;
-
- if (Length <= 0) {
- DEBUG ((DEBUG_ERROR,"%a: Invalid length of buffer %d\n",
- __FUNCTION__, Length));
- return EFI_INVALID_PARAMETER;
- }
-
- if (Flag == I2C_FLAG_READ) {
- RetVal = I2cDataRead (I2c->Dev->Resources[0].AddrRangeMin, SlaveAddress,
- RegAddress, OffsetLength, Buffer, Length);
- if (RetVal != EFI_SUCCESS) {
- DEBUG ((DEBUG_ERROR,"%a: I2c read operation failed (error %d)\n",
- __FUNCTION__, RetVal));
- return RetVal;
- }
- } else if (Flag == I2C_FLAG_WRITE) {
- RetVal = I2cDataWrite (I2c->Dev->Resources[0].AddrRangeMin, SlaveAddress,
- RegAddress, OffsetLength, Buffer, Length);
- if (RetVal != EFI_SUCCESS) {
- DEBUG ((DEBUG_ERROR,"%a: I2c write operation failed (error %d)\n",
- __FUNCTION__, RetVal));
- return RetVal;
- }
- } else {
- DEBUG ((DEBUG_ERROR,"%a: Invalid Flag %d\n", __FUNCTION__, Flag));
- return EFI_INVALID_PARAMETER;
- }
- }
-
- return EFI_SUCCESS;
+ return Status;
}
EFI_STATUS
diff --git a/Silicon/NXP/Drivers/I2cDxe/I2cDxe.h
b/Silicon/NXP/Drivers/I2cDxe/I2cDxe.h
index 02a29a5cf2b9..88316f313380 100644
--- a/Silicon/NXP/Drivers/I2cDxe/I2cDxe.h
+++ b/Silicon/NXP/Drivers/I2cDxe/I2cDxe.h
@@ -1,7 +1,7 @@
/** I2cDxe.h
Header defining the constant, base address amd function for I2C controller
- Copyright 2017-2019 NXP
+ Copyright 2017-2020 NXP
SPDX-License-Identifier: BSD-2-Clause-Patent
@@ -16,32 +16,6 @@
#include <Protocol/I2cMaster.h>
#include <Protocol/NonDiscoverableDevice.h>
-#define I2C_CR_IIEN (1 << 6)
-#define I2C_CR_MSTA (1 << 5)
-#define I2C_CR_MTX (1 << 4)
-#define I2C_CR_TX_NO_AK (1 << 3)
-#define I2C_CR_RSTA (1 << 2)
-
-#define I2C_SR_ICF (1 << 7)
-#define I2C_SR_IBB (1 << 5)
-#define I2C_SR_IAL (1 << 4)
-#define I2C_SR_IIF (1 << 1)
-#define I2C_SR_RX_NO_AK (1 << 0)
-
-#define I2C_CR_IEN (0 << 7)
-#define I2C_CR_IDIS (1 << 7)
-#define I2C_SR_IIF_CLEAR (1 << 1)
-
-#define BUS_IDLE (0 | (I2C_SR_IBB << 8))
-#define BUS_BUSY (I2C_SR_IBB | (I2C_SR_IBB << 8))
-#define IIF (I2C_SR_IIF | (I2C_SR_IIF << 8))
-
-#define I2C_FLAG_WRITE 0x0
-
-#define I2C_STATE_RETRIES 50000
-
-#define RETRY_COUNT 3
-
#define NXP_I2C_SIGNATURE SIGNATURE_32 ('N', 'I', '2', 'C')
#define NXP_I2C_FROM_THIS(a) CR ((a), NXP_I2C_MASTER, \
I2cMaster, NXP_I2C_SIGNATURE)
@@ -63,22 +37,6 @@ typedef struct {
NON_DISCOVERABLE_DEVICE *Dev;
} NXP_I2C_MASTER;
-/**
- Record defining i2c registers
-**/
-typedef struct {
- UINT8 I2cAdr;
- UINT8 I2cFdr;
- UINT8 I2cCr;
- UINT8 I2cSr;
- UINT8 I2cDr;
-} I2C_REGS;
-
-typedef struct {
- UINT16 SCLDivider;
- UINT16 BusClockRate;
-} CLK_DIV;
-
extern
UINT64
GetBusFrequency (
diff --git a/Silicon/NXP/Drivers/I2cDxe/I2cDxe.inf
b/Silicon/NXP/Drivers/I2cDxe/I2cDxe.inf
index 0c0bf63bb2e2..84adb837c249 100644
--- a/Silicon/NXP/Drivers/I2cDxe/I2cDxe.inf
+++ b/Silicon/NXP/Drivers/I2cDxe/I2cDxe.inf
@@ -3,7 +3,7 @@
# Component description file for I2c driver
#
# Copyright (c) 2015, Freescale Semiconductor, Inc. All rights reserved.
-# Copyright 2017-2019 NXP
+# Copyright 2017-2020 NXP
#
# SPDX-License-Identifier: BSD-2-Clause-Patent
#
@@ -27,6 +27,7 @@ [LibraryClasses]
ArmLib
BaseMemoryLib
DevicePathLib
+ I2cLib
IoLib
MemoryAllocationLib
PcdLib
@@ -48,11 +49,5 @@ [Protocols]
gEdkiiNonDiscoverableDeviceProtocolGuid ## TO_START
gEfiI2cMasterProtocolGuid ## BY_START
-[Pcd]
- gNxpQoriqLsTokenSpaceGuid.PcdI2cSpeed
- gNxpQoriqLsTokenSpaceGuid.PcdI2c0BaseAddr
- gNxpQoriqLsTokenSpaceGuid.PcdI2cSize
- gNxpQoriqLsTokenSpaceGuid.PcdNumI2cController
-
[Depex]
TRUE
--
2.17.1
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