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:  01/02/2002
  10     *
  11     *  Author:  Mitch Lichtenberg
  12     *
  13     *********************************************************************
  14     *
  15     *  Copyright 2000,2001,2002,2003
  16     *  Broadcom Corporation. All rights reserved.
  17     *
  18     *  This program is free software; you can redistribute it and/or
  19     *  modify it under the terms of the GNU General Public License as
  20     *  published by the Free Software Foundation; either version 2 of
  21     *  the License, or (at your option) any later version.
  22     *
  23     *  This program is distributed in the hope that it will be useful,
  24     *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  25     *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  26     *  GNU General Public License for more details.
  27     *
  28     *  You should have received a copy of the GNU General Public License
  29     *  along with this program; if not, write to the Free Software
  30     *  Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  31     *  MA 02111-1307 USA
  32     ********************************************************************* */
  33
  34
  35 #ifndef _SB1250_SMBUS_H
  36 #define _SB1250_SMBUS_H
  37
  38 #include "sb1250_defs.h"
  39
  40 /*
  41  * SMBus Clock Frequency Register (Table 14-2)
  42  */
  43
  44 #define S_SMB_FREQ_DIV              0
  45 #define M_SMB_FREQ_DIV              _SB_MAKEMASK(13,S_SMB_FREQ_DIV)
  46 #define V_SMB_FREQ_DIV(x)           _SB_MAKEVALUE(x,S_SMB_FREQ_DIV)
  47
  48 #define K_SMB_FREQ_400KHZ           0x1F
  49 #define K_SMB_FREQ_100KHZ           0x7D
  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 #define M_SMB_DATA_OUT              _SB_MAKEMASK1(4)
  62 #define M_SMB_DATA_DIR              _SB_MAKEMASK1(5)
  63 #define M_SMB_DATA_DIR_OUTPUT       M_SMB_DATA_DIR
  64 #define M_SMB_CLK_OUT               _SB_MAKEMASK1(6)
  65 #define M_SMB_DIRECT_ENABLE         _SB_MAKEMASK1(7)
  66
  67 /*
  68  * SMBus status registers (Table 14-5)
  69  */
  70
  71 #define M_SMB_BUSY                  _SB_MAKEMASK1(0)
  72 #define M_SMB_ERROR                 _SB_MAKEMASK1(1)
  73 #define M_SMB_ERROR_TYPE            _SB_MAKEMASK1(2)
  74 #define M_SMB_REF                   _SB_MAKEMASK1(6)
  75 #define M_SMB_DATA_IN               _SB_MAKEMASK1(7)
  76
  77 /*
  78  * SMBus Start/Command registers (Table 14-9)
  79  */
  80
  81 #define S_SMB_ADDR                  0
  82 #define M_SMB_ADDR                  _SB_MAKEMASK(7,S_SMB_ADDR)
  83 #define V_SMB_ADDR(x)               _SB_MAKEVALUE(x,S_SMB_ADDR)
  84 #define G_SMB_ADDR(x)               _SB_GETVALUE(x,S_SMB_ADDR,M_SMB_ADDR)
  85
  86 #define M_SMB_QDATA                 _SB_MAKEMASK1(7)
  87
  88 #define S_SMB_TT                    8
  89 #define M_SMB_TT                    _SB_MAKEMASK(3,S_SMB_TT)
  90 #define V_SMB_TT(x)                 _SB_MAKEVALUE(x,S_SMB_TT)
  91 #define G_SMB_TT(x)                 _SB_GETVALUE(x,S_SMB_TT,M_SMB_TT)
  92
  93 #define K_SMB_TT_WR1BYTE            0
  94 #define K_SMB_TT_WR2BYTE            1
  95 #define K_SMB_TT_WR3BYTE            2
  96 #define K_SMB_TT_CMD_RD1BYTE        3
  97 #define K_SMB_TT_CMD_RD2BYTE        4
  98 #define K_SMB_TT_RD1BYTE            5
  99 #define K_SMB_TT_QUICKCMD           6
 100 #define K_SMB_TT_EEPROMREAD         7
 101
 102 #define V_SMB_TT_WR1BYTE            V_SMB_TT(K_SMB_TT_WR1BYTE)
 103 #define V_SMB_TT_WR2BYTE            V_SMB_TT(K_SMB_TT_WR2BYTE)
 104 #define V_SMB_TT_WR3BYTE            V_SMB_TT(K_SMB_TT_WR3BYTE)
 105 #define V_SMB_TT_CMD_RD1BYTE        V_SMB_TT(K_SMB_TT_CMD_RD1BYTE)
 106 #define V_SMB_TT_CMD_RD2BYTE        V_SMB_TT(K_SMB_TT_CMD_RD2BYTE)
 107 #define V_SMB_TT_RD1BYTE            V_SMB_TT(K_SMB_TT_RD1BYTE)
 108 #define V_SMB_TT_QUICKCMD           V_SMB_TT(K_SMB_TT_QUICKCMD)
 109 #define V_SMB_TT_EEPROMREAD         V_SMB_TT(K_SMB_TT_EEPROMREAD)
 110
 111 #define M_SMB_PEC                   _SB_MAKEMASK1(15)
 112
 113 /*
 114  * SMBus Data Register (Table 14-6) and SMBus Extra Register (Table 14-7)
 115  */
 116
 117 #define S_SMB_LB                    0
 118 #define M_SMB_LB                    _SB_MAKEMASK(8,S_SMB_LB)
 119 #define V_SMB_LB(x)                 _SB_MAKEVALUE(x,S_SMB_LB)
 120
 121 #define S_SMB_MB                    8
 122 #define M_SMB_MB                    _SB_MAKEMASK(8,S_SMB_MB)
 123 #define V_SMB_MB(x)                 _SB_MAKEVALUE(x,S_SMB_MB)
 124
 125
 126 /*
 127  * SMBus Packet Error Check register (Table 14-8)
 128  */
 129
 130 #define S_SPEC_PEC                  0
 131 #define M_SPEC_PEC                  _SB_MAKEMASK(8,S_SPEC_PEC)
 132 #define V_SPEC_MB(x)                _SB_MAKEVALUE(x,S_SPEC_PEC)
 133
 134
 135 #if SIBYTE_HDR_FEATURE(1250, PASS2) || SIBYTE_HDR_FEATURE(112x, PASS1)
 136
 137 #define S_SMB_CMDH                  8
 138 #define M_SMB_CMDH                  _SB_MAKEMASK(8,S_SMBH_CMD)
 139 #define V_SMB_CMDH(x)               _SB_MAKEVALUE(x,S_SMBH_CMD)
 140
 141 #define M_SMB_EXTEND                _SB_MAKEMASK1(14)
 142
 143 #define M_SMB_DIR                   _SB_MAKEMASK1(13)
 144
 145 #define S_SMB_DFMT                  8
 146 #define M_SMB_DFMT                  _SB_MAKEMASK(3,S_SMB_DFMT)
 147 #define V_SMB_DFMT(x)               _SB_MAKEVALUE(x,S_SMB_DFMT)
 148 #define G_SMB_DFMT(x)               _SB_GETVALUE(x,S_SMB_DFMT,M_SMB_DFMT)
 149
 150 #define K_SMB_DFMT_1BYTE            0
 151 #define K_SMB_DFMT_2BYTE            1
 152 #define K_SMB_DFMT_3BYTE            2
 153 #define K_SMB_DFMT_4BYTE            3
 154 #define K_SMB_DFMT_NODATA           4
 155 #define K_SMB_DFMT_CMD4BYTE         5
 156 #define K_SMB_DFMT_CMD5BYTE         6
 157 #define K_SMB_DFMT_RESERVED         7
 158
 159 #define V_SMB_DFMT_1BYTE            V_SMB_DFMT(K_SMB_DFMT_1BYTE)
 160 #define V_SMB_DFMT_2BYTE            V_SMB_DFMT(K_SMB_DFMT_2BYTE)
 161 #define V_SMB_DFMT_3BYTE            V_SMB_DFMT(K_SMB_DFMT_3BYTE)
 162 #define V_SMB_DFMT_4BYTE            V_SMB_DFMT(K_SMB_DFMT_4BYTE)
 163 #define V_SMB_DFMT_NODATA           V_SMB_DFMT(K_SMB_DFMT_NODATA)
 164 #define V_SMB_DFMT_CMD4BYTE         V_SMB_DFMT(K_SMB_DFMT_CMD4BYTE)
 165 #define V_SMB_DFMT_CMD5BYTE         V_SMB_DFMT(K_SMB_DFMT_CMD5BYTE)
 166 #define V_SMB_DFMT_RESERVED         V_SMB_DFMT(K_SMB_DFMT_RESERVED)
 167
 168 #endif /* 1250 PASS2 || 112x PASS1 */
 169
 170 #endif