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 <asm/sibyte/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 205