arch/unicore32/include/mach/regs-i2c.h

   1 /*
   2  * PKUnity Inter-integrated Circuit (I2C) Registers
   3  */
   4
   5 /*
   6  * Control Reg I2C_CON.
   7  */
   8 #define I2C_CON         (PKUNITY_I2C_BASE + 0x0000)
   9 /*
  10  * Target Address Reg I2C_TAR.
  11  */
  12 #define I2C_TAR         (PKUNITY_I2C_BASE + 0x0004)
  13 /*
  14  * Data buffer and command Reg I2C_DATACMD.
  15  */
  16 #define I2C_DATACMD     (PKUNITY_I2C_BASE + 0x0010)
  17 /*
  18  * Enable Reg I2C_ENABLE.
  19  */
  20 #define I2C_ENABLE      (PKUNITY_I2C_BASE + 0x006C)
  21 /*
  22  * Status Reg I2C_STATUS.
  23  */
  24 #define I2C_STATUS      (PKUNITY_I2C_BASE + 0x0070)
  25 /*
  26  * Tx FIFO Length Reg I2C_TXFLR.
  27  */
  28 #define I2C_TXFLR       (PKUNITY_I2C_BASE + 0x0074)
  29 /*
  30  * Rx FIFO Length Reg I2C_RXFLR.
  31  */
  32 #define I2C_RXFLR       (PKUNITY_I2C_BASE + 0x0078)
  33 /*
  34  * Enable Status Reg I2C_ENSTATUS.
  35  */
  36 #define I2C_ENSTATUS    (PKUNITY_I2C_BASE + 0x009C)
  37
  38 #define I2C_CON_MASTER          FIELD(1, 1, 0)
  39 #define I2C_CON_SPEED_STD       FIELD(1, 2, 1)
  40 #define I2C_CON_SPEED_FAST      FIELD(2, 2, 1)
  41 #define I2C_CON_RESTART         FIELD(1, 1, 5)
  42 #define I2C_CON_SLAVEDISABLE    FIELD(1, 1, 6)
  43
  44 #define I2C_DATACMD_READ        FIELD(1, 1, 8)
  45 #define I2C_DATACMD_WRITE       FIELD(0, 1, 8)
  46 #define I2C_DATACMD_DAT_MASK    FMASK(8, 0)
  47 #define I2C_DATACMD_DAT(v)      FIELD((v), 8, 0)
  48
  49 #define I2C_ENABLE_ENABLE       FIELD(1, 1, 0)
  50 #define I2C_ENABLE_DISABLE      FIELD(0, 1, 0)
  51
  52 #define I2C_STATUS_RFF          FIELD(1, 1, 4)
  53 #define I2C_STATUS_RFNE         FIELD(1, 1, 3)
  54 #define I2C_STATUS_TFE          FIELD(1, 1, 2)
  55 #define I2C_STATUS_TFNF         FIELD(1, 1, 1)
  56 #define I2C_STATUS_ACTIVITY     FIELD(1, 1, 0)
  57
  58 #define I2C_ENSTATUS_ENABLE     FIELD(1, 1, 0)
  59
  60 #define I2C_TAR_THERMAL 0x4f
  61 #define I2C_TAR_SPD     0x50
  62 #define I2C_TAR_PWIC    0x55
  63 #define I2C_TAR_EEPROM  0x57