arch/mips/include/asm/sibyte/sb1250_smbus.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*  *********************************************************************
   3     *  SB1250 Board Support Package
   4     *
   5     *  SMBUS Constants                          File: sb1250_smbus.h
   6     *
   7     *  This module contains constants and macros useful for
   8     *  manipulating the SB1250's SMbus devices.
   9     *
  10     *  SB1250 specification level:  10/21/02
  11     *  BCM1280 specification level:  11/24/03
  12     *
  13     *********************************************************************
  14     *
  15     *  Copyright 2000,2001,2002,2003
  16     *  Broadcom Corporation. All rights reserved.
  17     *
  18     ********************************************************************* */
  19
  20
  21 #ifndef _SB1250_SMBUS_H
  22 #define _SB1250_SMBUS_H
  23
  24 #include <asm/sibyte/sb1250_defs.h>
  25
  26 /*
  27  * SMBus Clock Frequency Register (Table 14-2)
  28  */
  29
  30 #define S_SMB_FREQ_DIV              0
  31 #define M_SMB_FREQ_DIV              _SB_MAKEMASK(13, S_SMB_FREQ_DIV)
  32 #define V_SMB_FREQ_DIV(x)           _SB_MAKEVALUE(x, S_SMB_FREQ_DIV)
  33
  34 #define K_SMB_FREQ_400KHZ           0x1F
  35 #define K_SMB_FREQ_100KHZ           0x7D
  36 #define K_SMB_FREQ_10KHZ            1250
  37
  38 #define S_SMB_CMD                   0
  39 #define M_SMB_CMD                   _SB_MAKEMASK(8, S_SMB_CMD)
  40 #define V_SMB_CMD(x)                _SB_MAKEVALUE(x, S_SMB_CMD)
  41
  42 /*
  43  * SMBus control register (Table 14-4)
  44  */
  45
  46 #define M_SMB_ERR_INTR              _SB_MAKEMASK1(0)
  47 #define M_SMB_FINISH_INTR           _SB_MAKEMASK1(1)
  48
  49 #define S_SMB_DATA_OUT              4
  50 #define M_SMB_DATA_OUT              _SB_MAKEMASK1(S_SMB_DATA_OUT)
  51 #define V_SMB_DATA_OUT(x)           _SB_MAKEVALUE(x, S_SMB_DATA_OUT)
  52
  53 #define M_SMB_DATA_DIR              _SB_MAKEMASK1(5)
  54 #define M_SMB_DATA_DIR_OUTPUT       M_SMB_DATA_DIR
  55 #define M_SMB_CLK_OUT               _SB_MAKEMASK1(6)
  56 #define M_SMB_DIRECT_ENABLE         _SB_MAKEMASK1(7)
  57
  58 /*
  59  * SMBus status registers (Table 14-5)
  60  */
  61
  62 #define M_SMB_BUSY                  _SB_MAKEMASK1(0)
  63 #define M_SMB_ERROR                 _SB_MAKEMASK1(1)
  64 #define M_SMB_ERROR_TYPE            _SB_MAKEMASK1(2)
  65
  66 #if SIBYTE_HDR_FEATURE(1250, PASS3) || SIBYTE_HDR_FEATURE(112x, PASS1) || SIBYTE_HDR_FEATURE_CHIP(1480)
  67 #define S_SMB_SCL_IN                5
  68 #define M_SMB_SCL_IN                _SB_MAKEMASK1(S_SMB_SCL_IN)
  69 #define V_SMB_SCL_IN(x)             _SB_MAKEVALUE(x, S_SMB_SCL_IN)
  70 #define G_SMB_SCL_IN(x)             _SB_GETVALUE(x, S_SMB_SCL_IN, M_SMB_SCL_IN)
  71 #endif /* 1250 PASS3 || 112x PASS1 || 1480 */
  72
  73 #define S_SMB_REF                   6
  74 #define M_SMB_REF                   _SB_MAKEMASK1(S_SMB_REF)
  75 #define V_SMB_REF(x)                _SB_MAKEVALUE(x, S_SMB_REF)
  76 #define G_SMB_REF(x)                _SB_GETVALUE(x, S_SMB_REF, M_SMB_REF)
  77
  78 #define S_SMB_DATA_IN               7
  79 #define M_SMB_DATA_IN               _SB_MAKEMASK1(S_SMB_DATA_IN)
  80 #define V_SMB_DATA_IN(x)            _SB_MAKEVALUE(x, S_SMB_DATA_IN)
  81 #define G_SMB_DATA_IN(x)            _SB_GETVALUE(x, S_SMB_DATA_IN, M_SMB_DATA_IN)
  82
  83 /*
  84  * SMBus Start/Command registers (Table 14-9)
  85  */
  86
  87 #define S_SMB_ADDR                  0
  88 #define M_SMB_ADDR                  _SB_MAKEMASK(7, S_SMB_ADDR)
  89 #define V_SMB_ADDR(x)               _SB_MAKEVALUE(x, S_SMB_ADDR)
  90 #define G_SMB_ADDR(x)               _SB_GETVALUE(x, S_SMB_ADDR, M_SMB_ADDR)
  91
  92 #define M_SMB_QDATA                 _SB_MAKEMASK1(7)
  93
  94 #define S_SMB_TT                    8
  95 #define M_SMB_TT                    _SB_MAKEMASK(3, S_SMB_TT)
  96 #define V_SMB_TT(x)                 _SB_MAKEVALUE(x, S_SMB_TT)
  97 #define G_SMB_TT(x)                 _SB_GETVALUE(x, S_SMB_TT, M_SMB_TT)
  98
  99 #define K_SMB_TT_WR1BYTE            0
 100 #define K_SMB_TT_WR2BYTE            1
 101 #define K_SMB_TT_WR3BYTE            2
 102 #define K_SMB_TT_CMD_RD1BYTE        3
 103 #define K_SMB_TT_CMD_RD2BYTE        4
 104 #define K_SMB_TT_RD1BYTE            5
 105 #define K_SMB_TT_QUICKCMD           6
 106 #define K_SMB_TT_EEPROMREAD         7
 107
 108 #define V_SMB_TT_WR1BYTE            V_SMB_TT(K_SMB_TT_WR1BYTE)
 109 #define V_SMB_TT_WR2BYTE            V_SMB_TT(K_SMB_TT_WR2BYTE)
 110 #define V_SMB_TT_WR3BYTE            V_SMB_TT(K_SMB_TT_WR3BYTE)
 111 #define V_SMB_TT_CMD_RD1BYTE        V_SMB_TT(K_SMB_TT_CMD_RD1BYTE)
 112 #define V_SMB_TT_CMD_RD2BYTE        V_SMB_TT(K_SMB_TT_CMD_RD2BYTE)
 113 #define V_SMB_TT_RD1BYTE            V_SMB_TT(K_SMB_TT_RD1BYTE)
 114 #define V_SMB_TT_QUICKCMD           V_SMB_TT(K_SMB_TT_QUICKCMD)
 115 #define V_SMB_TT_EEPROMREAD         V_SMB_TT(K_SMB_TT_EEPROMREAD)
 116
 117 #define M_SMB_PEC                   _SB_MAKEMASK1(15)
 118
 119 /*
 120  * SMBus Data Register (Table 14-6) and SMBus Extra Register (Table 14-7)
 121  */
 122
 123 #define S_SMB_LB                    0
 124 #define M_SMB_LB                    _SB_MAKEMASK(8, S_SMB_LB)
 125 #define V_SMB_LB(x)                 _SB_MAKEVALUE(x, S_SMB_LB)
 126
 127 #define S_SMB_MB                    8
 128 #define M_SMB_MB                    _SB_MAKEMASK(8, S_SMB_MB)
 129 #define V_SMB_MB(x)                 _SB_MAKEVALUE(x, S_SMB_MB)
 130
 131
 132 /*
 133  * SMBus Packet Error Check register (Table 14-8)
 134  */
 135
 136 #define S_SPEC_PEC                  0
 137 #define M_SPEC_PEC                  _SB_MAKEMASK(8, S_SPEC_PEC)
 138 #define V_SPEC_MB(x)                _SB_MAKEVALUE(x, S_SPEC_PEC)
 139
 140
 141 #if SIBYTE_HDR_FEATURE(1250, PASS2) || SIBYTE_HDR_FEATURE(112x, PASS1) || SIBYTE_HDR_FEATURE_CHIP(1480)
 142
 143 #define S_SMB_CMDH                  8
 144 #define M_SMB_CMDH                  _SB_MAKEMASK(8, S_SMB_CMDH)
 145 #define V_SMB_CMDH(x)               _SB_MAKEVALUE(x, S_SMB_CMDH)
 146
 147 #define M_SMB_EXTEND                _SB_MAKEMASK1(14)
 148
 149 #define S_SMB_DFMT                  8
 150 #define M_SMB_DFMT                  _SB_MAKEMASK(3, S_SMB_DFMT)
 151 #define V_SMB_DFMT(x)               _SB_MAKEVALUE(x, S_SMB_DFMT)
 152 #define G_SMB_DFMT(x)               _SB_GETVALUE(x, S_SMB_DFMT, M_SMB_DFMT)
 153
 154 #define K_SMB_DFMT_1BYTE            0
 155 #define K_SMB_DFMT_2BYTE            1
 156 #define K_SMB_DFMT_3BYTE            2
 157 #define K_SMB_DFMT_4BYTE            3
 158 #define K_SMB_DFMT_NODATA           4
 159 #define K_SMB_DFMT_CMD4BYTE         5
 160 #define K_SMB_DFMT_CMD5BYTE         6
 161 #define K_SMB_DFMT_RESERVED         7
 162
 163 #define V_SMB_DFMT_1BYTE            V_SMB_DFMT(K_SMB_DFMT_1BYTE)
 164 #define V_SMB_DFMT_2BYTE            V_SMB_DFMT(K_SMB_DFMT_2BYTE)
 165 #define V_SMB_DFMT_3BYTE            V_SMB_DFMT(K_SMB_DFMT_3BYTE)
 166 #define V_SMB_DFMT_4BYTE            V_SMB_DFMT(K_SMB_DFMT_4BYTE)
 167 #define V_SMB_DFMT_NODATA           V_SMB_DFMT(K_SMB_DFMT_NODATA)
 168 #define V_SMB_DFMT_CMD4BYTE         V_SMB_DFMT(K_SMB_DFMT_CMD4BYTE)
 169 #define V_SMB_DFMT_CMD5BYTE         V_SMB_DFMT(K_SMB_DFMT_CMD5BYTE)
 170 #define V_SMB_DFMT_RESERVED         V_SMB_DFMT(K_SMB_DFMT_RESERVED)
 171
 172 #define S_SMB_AFMT                  11
 173 #define M_SMB_AFMT                  _SB_MAKEMASK(2, S_SMB_AFMT)
 174 #define V_SMB_AFMT(x)               _SB_MAKEVALUE(x, S_SMB_AFMT)
 175 #define G_SMB_AFMT(x)               _SB_GETVALUE(x, S_SMB_AFMT, M_SMB_AFMT)
 176
 177 #define K_SMB_AFMT_NONE             0
 178 #define K_SMB_AFMT_ADDR             1
 179 #define K_SMB_AFMT_ADDR_CMD1BYTE    2
 180 #define K_SMB_AFMT_ADDR_CMD2BYTE    3
 181
 182 #define V_SMB_AFMT_NONE             V_SMB_AFMT(K_SMB_AFMT_NONE)
 183 #define V_SMB_AFMT_ADDR             V_SMB_AFMT(K_SMB_AFMT_ADDR)
 184 #define V_SMB_AFMT_ADDR_CMD1BYTE    V_SMB_AFMT(K_SMB_AFMT_ADDR_CMD1BYTE)
 185 #define V_SMB_AFMT_ADDR_CMD2BYTE    V_SMB_AFMT(K_SMB_AFMT_ADDR_CMD2BYTE)
 186
 187 #define M_SMB_DIR                   _SB_MAKEMASK1(13)
 188
 189 #endif /* 1250 PASS2 || 112x PASS1 || 1480 */
 190
 191 #endif