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/** @file
I2C PEI Lib Instance.
Copyright (c) 1999- 2015, Intel Corporation. All rights reserved.<BR>
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.
**/
#ifndef I2C_PEI_REGS_H
#define I2C_PEI_REGS_H
#include "PiPei.h"
#define R_PCH_LPC_PMC_BASE 0x44
#define B_PCH_LPC_PMC_BASE_BAR 0xFFFFFE00
#define R_PCH_PMC_FUNC_DIS 0x34 // Function Disable Register
#define PCIEX_BASE_ADDRESS 0xE0000000
#define PciD31F0RegBase PCIEX_BASE_ADDRESS + (UINT32) (31 << 15)
#define B_PCH_PMC_FUNC_DIS_LPSS_FUNC7 BIT7 // LPSS SPI Disable
#define B_PCH_PMC_FUNC_DIS_LPSS_FUNC6 BIT6 // LPSS HSUART #2 Disable
#define B_PCH_PMC_FUNC_DIS_LPSS_FUNC5 BIT5 // LPSS HSUART #1 Disable
#define B_PCH_PMC_FUNC_DIS_LPSS_FUNC4 BIT4 // LPSS I2S Disable
#define B_PCH_PMC_FUNC_DIS_LPSS_FUNC3 BIT3 // LPSS PCM Disable
#define B_PCH_PMC_FUNC_DIS_LPSS_FUNC2 BIT2 // LPSS I2C #2 Disable
#define B_PCH_PMC_FUNC_DIS_LPSS_FUNC1 BIT1 // LPSS I2C #1 Disable
#define B_PCH_PMC_FUNC_DIS_LPSS_FUNC0 BIT0 // LPSS DMA Disable
#define DEFAULT_PCI_BUS_NUMBER_PCH 0
#define R_PCH_LPSS_I2C_STSCMD 0x04 // Status & Command
#define B_PCH_LPSS_I2C_STSCMD_RMA BIT29 // RMA
#define B_PCH_LPSS_I2C_STSCMD_RCA BIT28 // RCA
#define B_PCH_LPSS_I2C_STSCMD_CAPLIST BIT20 // Capability List
#define B_PCH_LPSS_I2C_STSCMD_INTRSTS BIT19 // Interrupt Status
#define B_PCH_LPSS_I2C_STSCMD_INTRDIS BIT10 // Interrupt Disable
#define B_PCH_LPSS_I2C_STSCMD_SERREN BIT8 // SERR# Enable
#define B_PCH_LPSS_I2C_STSCMD_BME BIT2 // Bus Master Enable
#define B_PCH_LPSS_I2C_STSCMD_MSE BIT1 // Memory Space Enable
#define R_PCH_LPSS_I2C_BAR 0x10 // BAR
#define B_PCH_LPSS_I2C_BAR_BA 0xFFFFF000 // Base Address
#define B_PCH_LPSS_I2C_BAR_SI 0x00000FF0 // Size Indicator
#define B_PCH_LPSS_I2C_BAR_PF BIT3 // Prefetchable
#define B_PCH_LPSS_I2C_BAR_TYPE (BIT2 | BIT1) // Type
#define B_PCH_LPSS_I2C_BAR_MS BIT0 // Message Space
#define R_PCH_LPSS_I2C_BAR1 0x14 // BAR 1
#define B_PCH_LPSS_I2C_BAR1_BA 0xFFFFF000 // Base Address
#define B_PCH_LPSS_I2C_BAR1_SI 0x00000FF0 // Size Indicator
#define B_PCH_LPSS_I2C_BAR1_PF BIT3 // Prefetchable
#define B_PCH_LPSS_I2C_BAR1_TYPE (BIT2 | BIT1) // Type
#define B_PCH_LPSS_I2C_BAR1_MS BIT0 // Message Space
#define NUM_RETRIES 0xFFFF
//
// LPIO I2C Module Memory Space Registers
//
#define R_PCH_LPIO_I2C_MEM_RESETS 0x804 // Software Reset
#define B_PCH_LPIO_I2C_MEM_RESETS_FUNC BIT1 // Function Clock Domain Reset
#define B_PCH_LPIO_I2C_MEM_RESETS_APB BIT0 // APB Domain Reset
#define R_PCH_LPSS_I2C_MEM_PCP 0x800 // Private Clock Parameters
#define bit(a) 1 << (a)
//
// MMIO Register Definitions
//
#define I2C0_REG_SPACE_ADDR_BASE 0xFF138000 //01K
#define R_IC_CON ( 0x00) // I2C Control
#define B_IC_RESTART_EN BIT5
#define B_IC_SLAVE_DISABLE BIT6
#define V_SPEED_STANDARD 0x02
#define V_SPEED_FAST 0x04
#define V_SPEED_HIGH 0x06
#define B_MASTER_MODE BIT0
#define R_IC_TAR ( 0x04) // I2C Target Address
#define IC_TAR_10BITADDR_MASTER BIT12
#define R_IC_SAR ( 0x08) // I2C Slave Address
#define R_IC_HS_MADDR ( 0x0C) // I2C HS MasterMode Code Address
#define R_IC_DATA_CMD ( 0x10) // I2C Rx/Tx Data Buffer and Command
#define B_READ_CMD BIT8 // 1 = read, 0 = write
#define B_CMD_STOP BIT9 // 1 = STOP
#define B_CMD_RESTART BIT10 // 1 = IC_RESTART_EN
#define V_WRITE_CMD_MASK ( 0xFF)
#define R_IC_SS_SCL_HCNT ( 0x14) // Standard Speed I2C Clock SCL High Count
#define R_IC_SS_SCL_LCNT ( 0x18) // Standard Speed I2C Clock SCL Low Count
#define R_IC_FS_SCL_HCNT ( 0x1C) // Full Speed I2C Clock SCL High Count
#define R_IC_FS_SCL_LCNT ( 0x20) // Full Speed I2C Clock SCL Low Count
#define R_IC_HS_SCL_HCNT ( 0x24) // High Speed I2C Clock SCL High Count
#define R_IC_HS_SCL_LCNT ( 0x28) // High Speed I2C Clock SCL Low Count
#define R_IC_INTR_STAT ( 0x2C) // I2C Inetrrupt Status
#define R_IC_INTR_MASK ( 0x30) // I2C Interrupt Mask
#define I2C_INTR_GEN_CALL BIT11 // General call received
#define I2C_INTR_START_DET BIT10
#define I2C_INTR_STOP_DET BIT9
#define I2C_INTR_ACTIVITY BIT8
#define I2C_INTR_TX_ABRT BIT6 // Set on NACK
#define I2C_INTR_TX_EMPTY BIT4
#define I2C_INTR_TX_OVER BIT3
#define I2C_INTR_RX_FULL BIT2 // Data bytes in RX FIFO over threshold
#define I2C_INTR_RX_OVER BIT1
#define I2C_INTR_RX_UNDER BIT0
#define R_IC_RawIntrStat ( 0x34) // I2C Raw Interrupt Status
#define R_IC_RX_TL ( 0x38) // I2C Receive FIFO Threshold
#define R_IC_TX_TL ( 0x3C) // I2C Transmit FIFO Threshold
#define R_IC_CLR_INTR ( 0x40) // Clear Combined and Individual Interrupts
#define R_IC_CLR_RX_UNDER ( 0x44) // Clear RX_UNDER Interrupt
#define R_IC_CLR_RX_OVER ( 0x48) // Clear RX_OVERinterrupt
#define R_IC_CLR_TX_OVER ( 0x4C) // Clear TX_OVER interrupt
#define R_IC_CLR_RD_REQ ( 0x50) // Clear RD_REQ interrupt
#define R_IC_CLR_TX_ABRT ( 0x54) // Clear TX_ABRT interrupt
#define R_IC_CLR_RX_DONE ( 0x58) // Clear RX_DONE interrupt
#define R_IC_CLR_ACTIVITY ( 0x5C) // Clear ACTIVITY interrupt
#define R_IC_CLR_STOP_DET ( 0x60) // Clear STOP_DET interrupt
#define R_IC_CLR_START_DET ( 0x64) // Clear START_DET interrupt
#define R_IC_CLR_GEN_CALL ( 0x68) // Clear GEN_CALL interrupt
#define R_IC_ENABLE ( 0x6C) // I2C Enable
#define R_IC_STATUS ( 0x70) // I2C Status
#define R_IC_SDA_HOLD ( 0x7C) // I2C IC_DEFAULT_SDA_HOLD//16bits
#define STAT_MST_ACTIVITY BIT5 // Master FSM Activity Status.
#define STAT_RFF BIT4 // RX FIFO is completely full
#define STAT_RFNE BIT3 // RX FIFO is not empty
#define STAT_TFE BIT2 // TX FIFO is completely empty
#define STAT_TFNF BIT1 // TX FIFO is not full
#define R_IC_TXFLR ( 0x74) // Transmit FIFO Level Register
#define R_IC_RXFLR ( 0x78) // Receive FIFO Level Register
#define R_IC_TX_ABRT_SOURCE ( 0x80) // I2C Transmit Abort Status Register
#define R_IC_SLV_DATA_NACK_ONLY ( 0x84) // Generate SLV_DATA_NACK Register
#define R_IC_DMA_CR ( 0x88) // DMA Control Register
#define R_IC_DMA_TDLR ( 0x8C) // DMA Transmit Data Level
#define R_IC_DMA_RDLR ( 0x90) // DMA Receive Data Level
#define R_IC_SDA_SETUP ( 0x94) // I2C SDA Setup Register
#define R_IC_ACK_GENERAL_CALL ( 0x98) // I2C ACK General Call Register
#define R_IC_ENABLE_STATUS ( 0x9C) // I2C Enable Status Register
#define R_IC_COMP_PARAM ( 0xF4) // Component Parameter Register
#define R_IC_COMP_VERSION ( 0xF8) // Component Version ID
#define R_IC_COMP_TYPE ( 0xFC) // Component Type
#define I2C_SS_SCL_HCNT_VALUE_100M 0x1DD
#define I2C_SS_SCL_LCNT_VALUE_100M 0x1E4
#define I2C_FS_SCL_HCNT_VALUE_100M 0x54
#define I2C_FS_SCL_LCNT_VALUE_100M 0x9a
#define I2C_HS_SCL_HCNT_VALUE_100M 0x7
#define I2C_HS_SCL_LCNT_VALUE_100M 0xE
//
// FIFO write workaround value.
//
#define FIFO_WRITE_DELAY 2
#define IC_TAR_10BITADDR_MASTER BIT12
#define FIFO_SIZE 32
#define R_IC_INTR_STAT ( 0x2C) // I2c Inetrrupt Status
#define R_IC_INTR_MASK ( 0x30) // I2c Interrupt Mask
#define I2C_INTR_GEN_CALL BIT11 // General call received
#define I2C_INTR_START_DET BIT10
#define I2C_INTR_STOP_DET BIT9
#define I2C_INTR_ACTIVITY BIT8
#define I2C_INTR_TX_ABRT BIT6 // Set on NACK
#define I2C_INTR_TX_EMPTY BIT4
#define I2C_INTR_TX_OVER BIT3
#define I2C_INTR_RX_FULL BIT2 // Data bytes in RX FIFO over threshold
#define I2C_INTR_RX_OVER BIT1
#define I2C_INTR_RX_UNDER BIT0
/**
Programe all I2C controllers on LPSS.
I2C0 is function 1 of LPSS. I2C1 is function 2 of LPSS, etc..
@param VOID
@return EFI_SUCCESS
**/
EFI_STATUS
ProgramPciLpssI2C (
VOID
);
/**
Reads a Byte from I2C Device.
@param I2cControllerIndex I2C Bus no to which the I2C device has been connected
@param SlaveAddress Device Address from which the byte value has to be read
@param Offset Offset from which the data has to be read
@param *Byte Address to which the value read has to be stored
@param Start Whether a RESTART is issued before the byte is sent or received
@param End Whether STOP is generated after a data byte is sent or received
@return EFI_SUCCESS If the byte value has been successfully read
@return EFI_DEVICE_ERROR Operation Failed, Device Error
**/
EFI_STATUS
ByteReadI2CBasic(
IN UINT8 I2cControllerIndex,
IN UINT8 SlaveAddress,
IN UINTN ReadBytes,
OUT UINT8 *ReadBuffer,
IN UINT8 Start,
IN UINT8 End
);
/**
Writes a Byte to I2C Device.
@param I2cControllerIndex I2C Bus no to which the I2C device has been connected
@param SlaveAddress Device Address from which the byte value has to be written
@param Offset Offset from which the data has to be read
@param *Byte Address to which the value written is stored
@param Start Whether a RESTART is issued before the byte is sent or received
@param End Whether STOP is generated after a data byte is sent or received
@return EFI_SUCCESS IF the byte value has been successfully written
@return EFI_DEVICE_ERROR Operation Failed, Device Error
**/
EFI_STATUS
ByteWriteI2CBasic(
IN UINT8 I2cControllerIndex,
IN UINT8 SlaveAddress,
IN UINTN WriteBytes,
IN UINT8 *WriteBuffer,
IN UINT8 Start,
IN UINT8 End
);
/**
Reads a Byte from I2C Device.
@param I2cControllerIndex I2C Bus no to which the I2C device has been connected
@param SlaveAddress Device Address from which the byte value has to be read
@param Offset Offset from which the data has to be read
@param ReadBytes Number of bytes to be read
@param *ReadBuffer Address to which the value read has to be stored
@return EFI_SUCCESS IF the byte value has been successfully read
@return EFI_DEVICE_ERROR Operation Failed, Device Error
**/
EFI_STATUS
ByteReadI2C(
IN UINT8 I2cControllerIndex,
IN UINT8 SlaveAddress,
IN UINT8 Offset,
IN UINTN ReadBytes,
OUT UINT8 *ReadBuffer
);
/**
Writes a Byte to I2C Device.
@param I2cControllerIndex I2C Bus no to which the I2C device has been connected
@param SlaveAddress Device Address from which the byte value has to be written
@param Offset Offset from which the data has to be written
@param WriteBytes Number of bytes to be written
@param *Byte Address to which the value written is stored
@return EFI_SUCCESS IF the byte value has been successfully read
@return EFI_DEVICE_ERROR Operation Failed, Device Error
**/
EFI_STATUS
ByteWriteI2C(
IN UINT8 I2cControllerIndex,
IN UINT8 SlaveAddress,
IN UINT8 Offset,
IN UINTN WriteBytes,
IN UINT8 *WriteBuffer
);
#endif
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