/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