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