/** @file
Register Definitions for I2C Driver/PEIM.
Copyright (c) 2004 - 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 that 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_REGS_H
#define I2C_REGS_H
//
// FIFO write delay value.
//
#define FIFO_WRITE_DELAY 2
//
// MMIO Register Definitions.
//
#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
#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
#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
#endif