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

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * PKUnity Inter-integrated Circuit (I2C) Registers
   4  */
   5
   6 /*
   7  * Control Reg I2C_CON.
   8  */
   9 #define I2C_CON         (PKUNITY_I2C_BASE + 0x0000)
  10 /*
  11  * Target Address Reg I2C_TAR.
  12  */
  13 #define I2C_TAR         (PKUNITY_I2C_BASE + 0x0004)
  14 /*
  15  * Data buffer and command Reg I2C_DATACMD.
  16  */
  17 #define I2C_DATACMD     (PKUNITY_I2C_BASE + 0x0010)
  18 /*
  19  * Enable Reg I2C_ENABLE.
  20  */
  21 #define I2C_ENABLE      (PKUNITY_I2C_BASE + 0x006C)
  22 /*
  23  * Status Reg I2C_STATUS.
  24  */
  25 #define I2C_STATUS      (PKUNITY_I2C_BASE + 0x0070)
  26 /*
  27  * Tx FIFO Length Reg I2C_TXFLR.
  28  */
  29 #define I2C_TXFLR       (PKUNITY_I2C_BASE + 0x0074)
  30 /*
  31  * Rx FIFO Length Reg I2C_RXFLR.
  32  */
  33 #define I2C_RXFLR       (PKUNITY_I2C_BASE + 0x0078)
  34 /*
  35  * Enable Status Reg I2C_ENSTATUS.
  36  */
  37 #define I2C_ENSTATUS    (PKUNITY_I2C_BASE + 0x009C)
  38
  39 #define I2C_CON_MASTER          FIELD(1, 1, 0)
  40 #define I2C_CON_SPEED_STD       FIELD(1, 2, 1)
  41 #define I2C_CON_SPEED_FAST      FIELD(2, 2, 1)
  42 #define I2C_CON_RESTART         FIELD(1, 1, 5)
  43 #define I2C_CON_SLAVEDISABLE    FIELD(1, 1, 6)
  44
  45 #define I2C_DATACMD_READ        FIELD(1, 1, 8)
  46 #define I2C_DATACMD_WRITE       FIELD(0, 1, 8)
  47 #define I2C_DATACMD_DAT_MASK    FMASK(8, 0)
  48 #define I2C_DATACMD_DAT(v)      FIELD((v), 8, 0)
  49
  50 #define I2C_ENABLE_ENABLE       FIELD(1, 1, 0)
  51 #define I2C_ENABLE_DISABLE      FIELD(0, 1, 0)
  52
  53 #define I2C_STATUS_RFF          FIELD(1, 1, 4)
  54 #define I2C_STATUS_RFNE         FIELD(1, 1, 3)
  55 #define I2C_STATUS_TFE          FIELD(1, 1, 2)
  56 #define I2C_STATUS_TFNF         FIELD(1, 1, 1)
  57 #define I2C_STATUS_ACTIVITY     FIELD(1, 1, 0)
  58
  59 #define I2C_ENSTATUS_ENABLE     FIELD(1, 1, 0)
  60
  61 #define I2C_TAR_THERMAL 0x4f
  62 #define I2C_TAR_SPD     0x50
  63 #define I2C_TAR_PWIC    0x55
  64 #define I2C_TAR_EEPROM  0x57