drivers/i2c/v0/i2c_reg_v0.h

   1 /******************************************************************************
   2  ** File Name:      I2C_reg_v0.h                                                 *
   3  ** Author:         liuhao                                                   *
   4  ** DATE:           06/28/2010                                                *
   5  ** Copyright:      2010 Spreatrum, Incoporated. All Rights Reserved.         *
   6  ** Description:    This file define the basic hw interfaces of I2C device.      *
   7  ******************************************************************************
   8
   9  ******************************************************************************
  10  **                        Edit History                                       *
  11  ** ------------------------------------------------------------------------- *
  12  ** DATE           NAME             DESCRIPTION                               *
  13  ** 06/28/2010     liuhao     Create.                                   *
  14  ******************************************************************************/
  15 #ifndef _I2C_REG_V0_H_
  16 #define _I2C_REG_V0_H_
  17 /*----------------------------------------------------------------------------*
  18  **                         Dependencies                                      *
  19  **------------------------------------------------------------------------- */
  20
  21 /**---------------------------------------------------------------------------*
  22  **                             Compiler Flag                                 *
  23  **--------------------------------------------------------------------------*/
  24 #ifdef   __cplusplus
  25 extern   "C"
  26 {
  27 #endif
  28 #include "asm/arch/sci_types.h"
  29
  30 /**---------------------------------------------------------------------------*
  31 **                               Micro Define                                **
  32 **---------------------------------------------------------------------------*/
  33 /*----------I2C Register----------
  34 #define I2C_BASE      0x86000000
  35 #define I2C_CTL                         (I2C_BASE + 0x0000)
  36 #define I2C_CMD                         (I2C_BASE + 0x0004)
  37 #define I2C_CLKD0                       (I2C_BASE + 0x0008)
  38 #define I2C_CLKD1                       (I2C_BASE + 0x000C)
  39 #define I2C_RST                         (I2C_BASE + 0x0010)
  40 #define I2C_CMD_BUF                     (I2C_BASE + 0x0014)
  41 */
  42 //GREG_BASE     0x8B000000
  43 #define GR_GEN0                         (0x71300000 + 0x0000)
  44 #define AON_APB_EB0                     (0X402E0000 + 0X0000)
  45 #define GEN0_I2C0_EN                     BIT_8
  46 #define GEN0_I2C1_EN                     BIT_9
  47 #define GEN0_I2C2_EN                     BIT_10
  48 #define GEN0_I2C3_EN                     BIT_11
  49 #define GEN0_I2C4_EN                     BIT_12
  50 #define AON_I2C_EN                       BIT_31
  51 //The corresponding bit of I2C_CTL register.
  52 #define I2CCTL_INT                      (1 << 0)        //I2c interrupt
  53 #define I2CCTL_ACK                      (1 << 1)        //I2c received ack value
  54 #define I2CCTL_BUSY                     (1 << 2)        //I2c data line value
  55 #define I2CCTL_IE                       (1 << 3)        //I2c interrupt enable
  56 #define I2CCTL_EN                       (1 << 4)        //I2c module enable
  57 #define I2CCTL_CMDBUF_EN                (1 << 5)        //Enable the cmd buffer mode
  58 #define I2CCTL_CMDBUF_EXEC              (1 << 6)        //Start to exec the cmd in the cmd buffer
  59 #define I2CCTL_ST_CMDBUF                (7 << 7)        //The state of  I2c cmd buffer state machine.
  60 #define I2CCTL_CMDBUF_WPTR              (7 << 7)        //I2c command buffer write pointer
  61
  62 //The corresponding bit of I2C_CMD register.
  63 #define I2CCMD_INT_ACK                  (1 << 0)        //I2c interrupt clear bit
  64 #define I2CCMD_TX_ACK                   (1 << 1)        //I2c transmit ack that need to be send
  65 #define I2CCMD_WRITE                    (1 << 2)        //I2c write command
  66 #define I2CCMD_READ                     (1 << 3)        //I2c read command
  67 #define I2CCMD_STOP                     (1 << 4)        //I2c stop command
  68 #define I2CCMD_START                    (1 << 5)        //I2c start command
  69 #define I2CCMD_ACK                      (1 << 6)        //I2c received ack  value
  70 #define I2CCMD_BUS                      (1 << 7)        //I2c busy in exec commands
  71 #define I2CCMD_DATA                     0xFF00          //I2c data received or data need to be transmitted
  72
  73 /**----------------------------------------------------------------------------*
  74 **                         Local Function Prototype                           **
  75 **----------------------------------------------------------------------------*/
  76 //I2C control register
  77 typedef struct i2c_tag
  78 {
  79     VOLATILE uint32 ctl;
  80     VOLATILE uint32 cmd;
  81     VOLATILE uint32 div0;
  82     VOLATILE uint32 div1;
  83     VOLATILE uint32 rst;
  84     VOLATILE uint32 cmd_buf;
  85 } I2C_CTL_REG_T;
  86
  87 /**----------------------------------------------------------------------------*
  88 **                         Compiler Flag                                      **
  89 **----------------------------------------------------------------------------*/
  90 #ifdef   __cplusplus
  91 }
  92 #endif
  93 /**---------------------------------------------------------------------------*/
  94 #endif
  95 // End