summaryrefslogtreecommitdiff
path: root/drivers/staging/ti-soc-thermal/omap4xxx-bandgap.h
blob: 6f2de3a3356d4bd803cf944364f6d43de9729a69 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
/*
 * OMAP4xxx bandgap registers, bitfields and temperature definitions
 *
 * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/
 * Contact:
 *   Eduardo Valentin <eduardo.valentin@ti.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA
 *
 */
#ifndef __OMAP4XXX_BANDGAP_H
#define __OMAP4XXX_BANDGAP_H

/**
 * *** OMAP4430 ***
 *
 * Below, in sequence, are the Register definitions,
 * the bitfields and the temperature definitions for OMAP4430.
 */

/**
 * OMAP4430 register definitions
 *
 * Registers are defined as offsets. The offsets are
 * relative to FUSE_OPP_BGAP on 4430.
 */

/* OMAP4430.FUSE_OPP_BGAP */
#define OMAP4430_FUSE_OPP_BGAP				0x0

/* OMAP4430.TEMP_SENSOR  */
#define OMAP4430_TEMP_SENSOR_CTRL_OFFSET		0xCC

/**
 * Register and bit definitions for OMAP4430
 *
 * All the macros bellow define the required bits for
 * controlling temperature on OMAP4430. Bit defines are
 * grouped by register.
 */

/* OMAP4430.TEMP_SENSOR bits */
#define OMAP4430_BGAP_TEMPSOFF_MASK			BIT(12)
#define OMAP4430_BGAP_TSHUT_MASK			BIT(11)
#define OMAP4430_SINGLE_MODE_MASK			BIT(10)
#define OMAP4430_BGAP_TEMP_SENSOR_SOC_MASK		BIT(9)
#define OMAP4430_BGAP_TEMP_SENSOR_EOCZ_MASK		BIT(8)
#define OMAP4430_BGAP_TEMP_SENSOR_DTEMP_MASK		(0xff << 0)

/**
 * Temperature limits and thresholds for OMAP4430
 *
 * All the macros bellow are definitions for handling the
 * ADC conversions and representation of temperature limits
 * and thresholds for OMAP4430.
 */

/* ADC conversion table limits */
#define OMAP4430_ADC_START_VALUE			0
#define OMAP4430_ADC_END_VALUE				127
/* bandgap clock limits (no control on 4430) */
#define OMAP4430_MAX_FREQ				32768
#define OMAP4430_MIN_FREQ				32768
/* sensor limits */
#define OMAP4430_MIN_TEMP				-40000
#define OMAP4430_MAX_TEMP				125000
#define OMAP4430_HYST_VAL				5000

/**
 * *** OMAP4460 *** Applicable for OMAP4470
 *
 * Below, in sequence, are the Register definitions,
 * the bitfields and the temperature definitions for OMAP4460.
 */

/**
 * OMAP4460 register definitions
 *
 * Registers are defined as offsets. The offsets are
 * relative to FUSE_OPP_BGAP on 4460.
 */

/* OMAP4460.FUSE_OPP_BGAP */
#define OMAP4460_FUSE_OPP_BGAP				0x0

/* OMAP4460.TEMP_SENSOR */
#define OMAP4460_TEMP_SENSOR_CTRL_OFFSET		0xCC

/* OMAP4460.BANDGAP_CTRL */
#define OMAP4460_BGAP_CTRL_OFFSET			0x118

/* OMAP4460.BANDGAP_COUNTER */
#define OMAP4460_BGAP_COUNTER_OFFSET			0x11C

/* OMAP4460.BANDGAP_THRESHOLD */
#define OMAP4460_BGAP_THRESHOLD_OFFSET			0x120

/* OMAP4460.TSHUT_THRESHOLD */
#define OMAP4460_BGAP_TSHUT_OFFSET			0x124

/* OMAP4460.BANDGAP_STATUS */
#define OMAP4460_BGAP_STATUS_OFFSET			0x128

/**
 * Register bitfields for OMAP4460
 *
 * All the macros bellow define the required bits for
 * controlling temperature on OMAP4460. Bit defines are
 * grouped by register.
 */
/* OMAP4460.TEMP_SENSOR bits */
#define OMAP4460_BGAP_TEMPSOFF_MASK			BIT(13)
#define OMAP4460_BGAP_TEMP_SENSOR_SOC_MASK		BIT(11)
#define OMAP4460_BGAP_TEMP_SENSOR_EOCZ_MASK		BIT(10)
#define OMAP4460_BGAP_TEMP_SENSOR_DTEMP_MASK		(0x3ff << 0)

/* OMAP4460.BANDGAP_CTRL bits */
#define OMAP4460_SINGLE_MODE_MASK			BIT(31)
#define OMAP4460_MASK_HOT_MASK				BIT(1)
#define OMAP4460_MASK_COLD_MASK				BIT(0)

/* OMAP4460.BANDGAP_COUNTER bits */
#define OMAP4460_COUNTER_MASK				(0xffffff << 0)

/* OMAP4460.BANDGAP_THRESHOLD bits */
#define OMAP4460_T_HOT_MASK				(0x3ff << 16)
#define OMAP4460_T_COLD_MASK				(0x3ff << 0)

/* OMAP4460.TSHUT_THRESHOLD bits */
#define OMAP4460_TSHUT_HOT_MASK				(0x3ff << 16)
#define OMAP4460_TSHUT_COLD_MASK			(0x3ff << 0)

/* OMAP4460.BANDGAP_STATUS bits */
#define OMAP4460_CLEAN_STOP_MASK			BIT(3)
#define OMAP4460_BGAP_ALERT_MASK			BIT(2)
#define OMAP4460_HOT_FLAG_MASK				BIT(1)
#define OMAP4460_COLD_FLAG_MASK				BIT(0)

/**
 * Temperature limits and thresholds for OMAP4460
 *
 * All the macros bellow are definitions for handling the
 * ADC conversions and representation of temperature limits
 * and thresholds for OMAP4460.
 */

/* ADC conversion table limits */
#define OMAP4460_ADC_START_VALUE			530
#define OMAP4460_ADC_END_VALUE				932
/* bandgap clock limits */
#define OMAP4460_MAX_FREQ				1500000
#define OMAP4460_MIN_FREQ				1000000
/* sensor limits */
#define OMAP4460_MIN_TEMP				-40000
#define OMAP4460_MAX_TEMP				123000
#define OMAP4460_HYST_VAL				5000
/* interrupts thresholds */
#define OMAP4460_TSHUT_HOT				900	/* 122 deg C */
#define OMAP4460_TSHUT_COLD				895	/* 100 deg C */
#define OMAP4460_T_HOT					800	/* 73 deg C */
#define OMAP4460_T_COLD					795	/* 71 deg C */

#endif /* __OMAP4XXX_BANDGAP_H */