include/asm-mips/sibyte/sb1250_smbus.h

   1 /*  *********************************************************************
   2     *  SB1250 Board Support Package
   3     *
   4     *  SMBUS Constants                          File: sb1250_smbus.h
   5     *
   6     *  This module contains constants and macros useful for
   7     *  manipulating the SB1250's SMbus devices.
   8     *
   9     *  SB1250 specification level:  10/21/02
  10     *  BCM1280 specification level:  11/24/03
  11     *
  12     *********************************************************************
  13     *
  14     *  Copyright 2000,2001,2002,2003
  15     *  Broadcom Corporation. All rights reserved.
  16     *
  17     *  This program is free software; you can redistribute it and/or
  18     *  modify it under the terms of the GNU General Public License as
  19     *  published by the Free Software Foundation; either version 2 of
  20     *  the License, or (at your option) any later version.
  21     *
  22     *  This program is distributed in the hope that it will be useful,
  23     *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  24     *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  25     *  GNU General Public License for more details.
  26     *
  27     *  You should have received a copy of the GNU General Public License
  28     *  along with this program; if not, write to the Free Software
  29     *  Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  30     *  MA 02111-1307 USA
  31     ********************************************************************* */
  32
  33
  34 #ifndef _SB1250_SMBUS_H
  35 #define _SB1250_SMBUS_H
  36
  37 #include "sb1250_defs.h"
  38
  39 /*
  40  * SMBus Clock Frequency Register (Table 14-2)
  41  */
  42
  43 #define S_SMB_FREQ_DIV              0
  44 #define M_SMB_FREQ_DIV              _SB_MAKEMASK(13,S_SMB_FREQ_DIV)
  45 #define V_SMB_FREQ_DIV(x)           _SB_MAKEVALUE(x,S_SMB_FREQ_DIV)
  46
  47 #define K_SMB_FREQ_400KHZ           0x1F
  48 #define K_SMB_FREQ_100KHZ           0x7D
  49 #define K_SMB_FREQ_10KHZ            1250
  50
  51 #define S_SMB_CMD                   0
  52 #define M_SMB_CMD                   _SB_MAKEMASK(8,S_SMB_CMD)
  53 #define V_SMB_CMD(x)                _SB_MAKEVALUE(x,S_SMB_CMD)
  54
  55 /*
  56  * SMBus control register (Table 14-4)
  57  */
  58
  59 #define M_SMB_ERR_INTR              _SB_MAKEMASK1(0)
  60 #define M_SMB_FINISH_INTR           _SB_MAKEMASK1(1)
  61
  62 #define S_SMB_DATA_OUT              4
  63 #define M_SMB_DATA_OUT              _SB_MAKEMASK1(S_SMB_DATA_OUT)
  64 #define V_SMB_DATA_OUT(x)           _SB_MAKEVALUE(x,S_SMB_DATA_OUT)
  65
  66 #define M_SMB_DATA_DIR              _SB_MAKEMASK1(5)
  67 #define M_SMB_DATA_DIR_OUTPUT       M_SMB_DATA_DIR
  68 #define M_SMB_CLK_OUT               _SB_MAKEMASK1(6)
  69 #define M_SMB_DIRECT_ENABLE         _SB_MAKEMASK1(7)
  70
  71 /*
  72  * SMBus status registers (Table 14-5)
  73  */
  74
  75 #define M_SMB_BUSY                  _SB_MAKEMASK1(0)
  76 #define M_SMB_ERROR                 _SB_MAKEMASK1(1)
  77 #define M_SMB_ERROR_TYPE            _SB_MAKEMASK1(2)
  78
  79 #if SIBYTE_HDR_FEATURE(1250, PASS3) || SIBYTE_HDR_FEATURE(112x, PASS1) || SIBYTE_HDR_FEATURE_CHIP(1480)
  80 #define S_SMB_SCL_IN                5
  81 #define M_SMB_SCL_IN                _SB_MAKEMASK1(S_SMB_SCL_IN)
  82 #define V_SMB_SCL_IN(x)             _SB_MAKEVALUE(x,S_SMB_SCL_IN)
  83 #define G_SMB_SCL_IN(x)             _SB_GETVALUE(x,S_SMB_SCL_IN,M_SMB_SCL_IN)
  84 #endif /* 1250 PASS3 || 112x PASS1 || 1480 */
  85
  86 #define S_SMB_REF                   6
  87 #define M_SMB_REF                   _SB_MAKEMASK1(S_SMB_REF)
  88 #define V_SMB_REF(x)                _SB_MAKEVALUE(x,S_SMB_REF)
  89 #define G_SMB_REF(x)                _SB_GETVALUE(x,S_SMB_REF,M_SMB_REF)
  90
  91 #define S_SMB_DATA_IN               7
  92 #define M_SMB_DATA_IN               _SB_MAKEMASK1(S_SMB_DATA_IN)
  93 #define V_SMB_DATA_IN(x)            _SB_MAKEVALUE(x,S_SMB_DATA_IN)
  94 #define G_SMB_DATA_IN(x)            _SB_GETVALUE(x,S_SMB_DATA_IN,M_SMB_DATA_IN)
  95
  96 /*
  97  * SMBus Start/Command registers (Table 14-9)
  98  */
  99
 100 #define S_SMB_ADDR                  0
 101 #define M_SMB_ADDR                  _SB_MAKEMASK(7,S_SMB_ADDR)
 102 #define V_SMB_ADDR(x)               _SB_MAKEVALUE(x,S_SMB_ADDR)
 103 #define G_SMB_ADDR(x)               _SB_GETVALUE(x,S_SMB_ADDR,M_SMB_ADDR)
 104
 105 #define M_SMB_QDATA                 _SB_MAKEMASK1(7)
 106
 107 #define S_SMB_TT                    8
 108 #define M_SMB_TT                    _SB_MAKEMASK(3,S_SMB_TT)
 109 #define V_SMB_TT(x)                 _SB_MAKEVALUE(x,S_SMB_TT)
 110 #define G_SMB_TT(x)                 _SB_GETVALUE(x,S_SMB_TT,M_SMB_TT)
 111
 112 #define K_SMB_TT_WR1BYTE            0
 113 #define K_SMB_TT_WR2BYTE            1
 114 #define K_SMB_TT_WR3BYTE            2
 115 #define K_SMB_TT_CMD_RD1BYTE        3
 116 #define K_SMB_TT_CMD_RD2BYTE        4
 117 #define K_SMB_TT_RD1BYTE            5
 118 #define K_SMB_TT_QUICKCMD           6
 119 #define K_SMB_TT_EEPROMREAD         7
 120
 121 #define V_SMB_TT_WR1BYTE            V_SMB_TT(K_SMB_TT_WR1BYTE)
 122 #define V_SMB_TT_WR2BYTE            V_SMB_TT(K_SMB_TT_WR2BYTE)
 123 #define V_SMB_TT_WR3BYTE            V_SMB_TT(K_SMB_TT_WR3BYTE)
 124 #define V_SMB_TT_CMD_RD1BYTE        V_SMB_TT(K_SMB_TT_CMD_RD1BYTE)
 125 #define V_SMB_TT_CMD_RD2BYTE        V_SMB_TT(K_SMB_TT_CMD_RD2BYTE)
 126 #define V_SMB_TT_RD1BYTE            V_SMB_TT(K_SMB_TT_RD1BYTE)
 127 #define V_SMB_TT_QUICKCMD           V_SMB_TT(K_SMB_TT_QUICKCMD)
 128 #define V_SMB_TT_EEPROMREAD         V_SMB_TT(K_SMB_TT_EEPROMREAD)
 129
 130 #define M_SMB_PEC                   _SB_MAKEMASK1(15)
 131
 132 /*
 133  * SMBus Data Register (Table 14-6) and SMBus Extra Register (Table 14-7)
 134  */
 135
 136 #define S_SMB_LB                    0
 137 #define M_SMB_LB                    _SB_MAKEMASK(8,S_SMB_LB)
 138 #define V_SMB_LB(x)                 _SB_MAKEVALUE(x,S_SMB_LB)
 139
 140 #define S_SMB_MB                    8
 141 #define M_SMB_MB                    _SB_MAKEMASK(8,S_SMB_MB)
 142 #define V_SMB_MB(x)                 _SB_MAKEVALUE(x,S_SMB_MB)
 143
 144
 145 /*
 146  * SMBus Packet Error Check register (Table 14-8)
 147  */
 148
 149 #define S_SPEC_PEC                  0
 150 #define M_SPEC_PEC                  _SB_MAKEMASK(8,S_SPEC_PEC)
 151 #define V_SPEC_MB(x)                _SB_MAKEVALUE(x,S_SPEC_PEC)
 152
 153
 154 #if SIBYTE_HDR_FEATURE(1250, PASS2) || SIBYTE_HDR_FEATURE(112x, PASS1) || SIBYTE_HDR_FEATURE_CHIP(1480)
 155
 156 #define S_SMB_CMDH                  8
 157 #define M_SMB_CMDH                  _SB_MAKEMASK(8,S_SMB_CMDH)
 158 #define V_SMB_CMDH(x)               _SB_MAKEVALUE(x,S_SMB_CMDH)
 159
 160 #define M_SMB_EXTEND                _SB_MAKEMASK1(14)
 161
 162 #define S_SMB_DFMT                  8
 163 #define M_SMB_DFMT                  _SB_MAKEMASK(3,S_SMB_DFMT)
 164 #define V_SMB_DFMT(x)               _SB_MAKEVALUE(x,S_SMB_DFMT)
 165 #define G_SMB_DFMT(x)               _SB_GETVALUE(x,S_SMB_DFMT,M_SMB_DFMT)
 166
 167 #define K_SMB_DFMT_1BYTE            0
 168 #define K_SMB_DFMT_2BYTE            1
 169 #define K_SMB_DFMT_3BYTE            2
 170 #define K_SMB_DFMT_4BYTE            3
 171 #define K_SMB_DFMT_NODATA           4
 172 #define K_SMB_DFMT_CMD4BYTE         5
 173 #define K_SMB_DFMT_CMD5BYTE         6
 174 #define K_SMB_DFMT_RESERVED         7
 175
 176 #define V_SMB_DFMT_1BYTE            V_SMB_DFMT(K_SMB_DFMT_1BYTE)
 177 #define V_SMB_DFMT_2BYTE            V_SMB_DFMT(K_SMB_DFMT_2BYTE)
 178 #define V_SMB_DFMT_3BYTE            V_SMB_DFMT(K_SMB_DFMT_3BYTE)
 179 #define V_SMB_DFMT_4BYTE            V_SMB_DFMT(K_SMB_DFMT_4BYTE)
 180 #define V_SMB_DFMT_NODATA           V_SMB_DFMT(K_SMB_DFMT_NODATA)
 181 #define V_SMB_DFMT_CMD4BYTE         V_SMB_DFMT(K_SMB_DFMT_CMD4BYTE)
 182 #define V_SMB_DFMT_CMD5BYTE         V_SMB_DFMT(K_SMB_DFMT_CMD5BYTE)
 183 #define V_SMB_DFMT_RESERVED         V_SMB_DFMT(K_SMB_DFMT_RESERVED)
 184
 185 #define S_SMB_AFMT                  11
 186 #define M_SMB_AFMT                  _SB_MAKEMASK(2,S_SMB_AFMT)
 187 #define V_SMB_AFMT(x)               _SB_MAKEVALUE(x,S_SMB_AFMT)
 188 #define G_SMB_AFMT(x)               _SB_GETVALUE(x,S_SMB_AFMT,M_SMB_AFMT)
 189
 190 #define K_SMB_AFMT_NONE             0
 191 #define K_SMB_AFMT_ADDR             1
 192 #define K_SMB_AFMT_ADDR_CMD1BYTE    2
 193 #define K_SMB_AFMT_ADDR_CMD2BYTE    3
 194
 195 #define V_SMB_AFMT_NONE             V_SMB_AFMT(K_SMB_AFMT_NONE)
 196 #define V_SMB_AFMT_ADDR             V_SMB_AFMT(K_SMB_AFMT_ADDR)
 197 #define V_SMB_AFMT_ADDR_CMD1BYTE    V_SMB_AFMT(K_SMB_AFMT_ADDR_CMD1BYTE)
 198 #define V_SMB_AFMT_ADDR_CMD2BYTE    V_SMB_AFMT(K_SMB_AFMT_ADDR_CMD2BYTE)
 199
 200 #define M_SMB_DIR                   _SB_MAKEMASK1(13)
 201
 202 #endif /* 1250 PASS2 || 112x PASS1 || 1480 */
 203
 204 #endif