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192.168.1.100 / T103 / 1f884588077ad3476b9c91cbb0ee9ee0332bbb68 / . / src / kernel / linux / v4.14 / drivers / thermal / ti-soc-thermal / omap4xxx-bandgap.h
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rjw1f884582022-01-06 17:20:42 +0800[diff] [blame^]1/*
2 * OMAP4xxx bandgap registers, bitfields and temperature definitions
3 *
4 * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/
5 * Contact:
6 * Eduardo Valentin <eduardo.valentin@ti.com>
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * version 2 as published by the Free Software Foundation.
11 *
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20 * 02110-1301 USA
21 *
22 */
23#ifndef __OMAP4XXX_BANDGAP_H
24#define __OMAP4XXX_BANDGAP_H
25
26/**
27 * *** OMAP4430 ***
28 *
29 * Below, in sequence, are the Register definitions,
30 * the bitfields and the temperature definitions for OMAP4430.
31 */
32
33/**
34 * OMAP4430 register definitions
35 *
36 * Registers are defined as offsets. The offsets are
37 * relative to FUSE_OPP_BGAP on 4430.
38 */
39
40/* OMAP4430.FUSE_OPP_BGAP */
41#define OMAP4430_FUSE_OPP_BGAP 0x0
42
43/* OMAP4430.TEMP_SENSOR */
44#define OMAP4430_TEMP_SENSOR_CTRL_OFFSET 0xCC
45
46/**
47 * Register and bit definitions for OMAP4430
48 *
49 * All the macros bellow define the required bits for
50 * controlling temperature on OMAP4430. Bit defines are
51 * grouped by register.
52 */
53
54/* OMAP4430.TEMP_SENSOR bits */
55#define OMAP4430_BGAP_TEMPSOFF_MASK BIT(12)
56#define OMAP4430_BGAP_TSHUT_MASK BIT(11)
57#define OMAP4430_SINGLE_MODE_MASK BIT(10)
58#define OMAP4430_BGAP_TEMP_SENSOR_SOC_MASK BIT(9)
59#define OMAP4430_BGAP_TEMP_SENSOR_EOCZ_MASK BIT(8)
60#define OMAP4430_BGAP_TEMP_SENSOR_DTEMP_MASK (0xff << 0)
61
62/**
63 * Temperature limits and thresholds for OMAP4430
64 *
65 * All the macros bellow are definitions for handling the
66 * ADC conversions and representation of temperature limits
67 * and thresholds for OMAP4430.
68 */
69
70/*
71 * ADC conversion table limits. Ignore values outside the TRM listed
72 * range to avoid bogus thermal shutdowns. See omap4430 TRM chapter
73 * "18.4.10.2.3 ADC Codes Versus Temperature".
74 */
75#define OMAP4430_ADC_START_VALUE 13
76#define OMAP4430_ADC_END_VALUE 107
77/* bandgap clock limits (no control on 4430) */
78#define OMAP4430_MAX_FREQ 32768
79#define OMAP4430_MIN_FREQ 32768
80/* sensor limits */
81#define OMAP4430_MIN_TEMP -40000
82#define OMAP4430_MAX_TEMP 125000
83#define OMAP4430_HYST_VAL 5000
84
85/**
86 * *** OMAP4460 *** Applicable for OMAP4470
87 *
88 * Below, in sequence, are the Register definitions,
89 * the bitfields and the temperature definitions for OMAP4460.
90 */
91
92/**
93 * OMAP4460 register definitions
94 *
95 * Registers are defined as offsets. The offsets are
96 * relative to FUSE_OPP_BGAP on 4460.
97 */
98
99/* OMAP4460.FUSE_OPP_BGAP */
100#define OMAP4460_FUSE_OPP_BGAP 0x0
101
102/* OMAP4460.TEMP_SENSOR */
103#define OMAP4460_TEMP_SENSOR_CTRL_OFFSET 0xCC
104
105/* OMAP4460.BANDGAP_CTRL */
106#define OMAP4460_BGAP_CTRL_OFFSET 0x118
107
108/* OMAP4460.BANDGAP_COUNTER */
109#define OMAP4460_BGAP_COUNTER_OFFSET 0x11C
110
111/* OMAP4460.BANDGAP_THRESHOLD */
112#define OMAP4460_BGAP_THRESHOLD_OFFSET 0x120
113
114/* OMAP4460.TSHUT_THRESHOLD */
115#define OMAP4460_BGAP_TSHUT_OFFSET 0x124
116
117/* OMAP4460.BANDGAP_STATUS */
118#define OMAP4460_BGAP_STATUS_OFFSET 0x128
119
120/**
121 * Register bitfields for OMAP4460
122 *
123 * All the macros bellow define the required bits for
124 * controlling temperature on OMAP4460. Bit defines are
125 * grouped by register.
126 */
127/* OMAP4460.TEMP_SENSOR bits */
128#define OMAP4460_BGAP_TEMPSOFF_MASK BIT(13)
129#define OMAP4460_BGAP_TEMP_SENSOR_SOC_MASK BIT(11)
130#define OMAP4460_BGAP_TEMP_SENSOR_EOCZ_MASK BIT(10)
131#define OMAP4460_BGAP_TEMP_SENSOR_DTEMP_MASK (0x3ff << 0)
132
133/* OMAP4460.BANDGAP_CTRL bits */
134#define OMAP4460_SINGLE_MODE_MASK BIT(31)
135#define OMAP4460_MASK_HOT_MASK BIT(1)
136#define OMAP4460_MASK_COLD_MASK BIT(0)
137
138/* OMAP4460.BANDGAP_COUNTER bits */
139#define OMAP4460_COUNTER_MASK (0xffffff << 0)
140
141/* OMAP4460.BANDGAP_THRESHOLD bits */
142#define OMAP4460_T_HOT_MASK (0x3ff << 16)
143#define OMAP4460_T_COLD_MASK (0x3ff << 0)
144
145/* OMAP4460.TSHUT_THRESHOLD bits */
146#define OMAP4460_TSHUT_HOT_MASK (0x3ff << 16)
147#define OMAP4460_TSHUT_COLD_MASK (0x3ff << 0)
148
149/* OMAP4460.BANDGAP_STATUS bits */
150#define OMAP4460_CLEAN_STOP_MASK BIT(3)
151#define OMAP4460_BGAP_ALERT_MASK BIT(2)
152#define OMAP4460_HOT_FLAG_MASK BIT(1)
153#define OMAP4460_COLD_FLAG_MASK BIT(0)
154
155/**
156 * Temperature limits and thresholds for OMAP4460
157 *
158 * All the macros bellow are definitions for handling the
159 * ADC conversions and representation of temperature limits
160 * and thresholds for OMAP4460.
161 */
162
163/* ADC conversion table limits */
164#define OMAP4460_ADC_START_VALUE 530
165#define OMAP4460_ADC_END_VALUE 932
166/* bandgap clock limits */
167#define OMAP4460_MAX_FREQ 1500000
168#define OMAP4460_MIN_FREQ 1000000
169/* sensor limits */
170#define OMAP4460_MIN_TEMP -40000
171#define OMAP4460_MAX_TEMP 123000
172#define OMAP4460_HYST_VAL 5000
173/* interrupts thresholds */
174#define OMAP4460_TSHUT_HOT 900 /* 122 deg C */
175#define OMAP4460_TSHUT_COLD 895 /* 100 deg C */
176#define OMAP4460_T_HOT 800 /* 73 deg C */
177#define OMAP4460_T_COLD 795 /* 71 deg C */
178
179#endif /* __OMAP4XXX_BANDGAP_H */