xref: /openbmc/linux/drivers/thermal/tegra/soctherm.h (revision 171fa692)
1 /*
2  * Copyright (c) 2014-2016, NVIDIA CORPORATION.  All rights reserved.
3  *
4  * This software is licensed under the terms of the GNU General Public
5  * License version 2, as published by the Free Software Foundation, and
6  * may be copied, distributed, and modified under those terms.
7  *
8  * This program is distributed in the hope that it will be useful,
9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11  * GNU General Public License for more details.
12  *
13  */
14 
15 #ifndef __DRIVERS_THERMAL_TEGRA_SOCTHERM_H
16 #define __DRIVERS_THERMAL_TEGRA_SOCTHERM_H
17 
18 #define THERMCTL_LEVEL0_GROUP_CPU               0x0
19 #define THERMCTL_LEVEL0_GROUP_GPU		0x4
20 #define THERMCTL_LEVEL0_GROUP_MEM		0x8
21 #define THERMCTL_LEVEL0_GROUP_TSENSE		0xc
22 
23 #define SENSOR_CONFIG2                          8
24 #define SENSOR_CONFIG2_THERMA_MASK		(0xffff << 16)
25 #define SENSOR_CONFIG2_THERMA_SHIFT		16
26 #define SENSOR_CONFIG2_THERMB_MASK		0xffff
27 #define SENSOR_CONFIG2_THERMB_SHIFT		0
28 
29 #define THERMCTL_THERMTRIP_CTL			0x80
30 /* BITs are defined in device file */
31 
32 #define SENSOR_PDIV				0x1c0
33 #define SENSOR_PDIV_CPU_MASK			(0xf << 12)
34 #define SENSOR_PDIV_GPU_MASK			(0xf << 8)
35 #define SENSOR_PDIV_MEM_MASK			(0xf << 4)
36 #define SENSOR_PDIV_PLLX_MASK			(0xf << 0)
37 
38 #define SENSOR_HOTSPOT_OFF			0x1c4
39 #define SENSOR_HOTSPOT_CPU_MASK			(0xff << 16)
40 #define SENSOR_HOTSPOT_GPU_MASK			(0xff << 8)
41 #define SENSOR_HOTSPOT_MEM_MASK			(0xff << 0)
42 
43 #define SENSOR_TEMP1				0x1c8
44 #define SENSOR_TEMP1_CPU_TEMP_MASK		(0xffff << 16)
45 #define SENSOR_TEMP1_GPU_TEMP_MASK		0xffff
46 #define SENSOR_TEMP2				0x1cc
47 #define SENSOR_TEMP2_MEM_TEMP_MASK		(0xffff << 16)
48 #define SENSOR_TEMP2_PLLX_TEMP_MASK		0xffff
49 
50 /**
51  * struct tegra_tsensor_group - SOC_THERM sensor group data
52  * @name: short name of the temperature sensor group
53  * @id: numeric ID of the temperature sensor group
54  * @sensor_temp_offset: offset of the SENSOR_TEMP* register
55  * @sensor_temp_mask: bit mask for this sensor group in SENSOR_TEMP* register
56  * @pdiv: the sensor count post-divider to use during runtime
57  * @pdiv_ate: the sensor count post-divider used during automated test
58  * @pdiv_mask: register bitfield mask for the PDIV field for this sensor
59  * @pllx_hotspot_diff: hotspot offset from the PLLX sensor, must be 0 for
60     PLLX sensor group
61  * @pllx_hotspot_mask: register bitfield mask for the HOTSPOT field
62  */
63 struct tegra_tsensor_group {
64 	const char *name;
65 	u8 id;
66 	u16 sensor_temp_offset;
67 	u32 sensor_temp_mask;
68 	u32 pdiv, pdiv_ate, pdiv_mask;
69 	u32 pllx_hotspot_diff, pllx_hotspot_mask;
70 	u32 thermtrip_enable_mask;
71 	u32 thermtrip_any_en_mask;
72 	u32 thermtrip_threshold_mask;
73 	u16 thermctl_lvl0_offset;
74 	u32 thermctl_lvl0_up_thresh_mask;
75 	u32 thermctl_lvl0_dn_thresh_mask;
76 };
77 
78 struct tegra_tsensor_configuration {
79 	u32 tall, tiddq_en, ten_count, pdiv, pdiv_ate, tsample, tsample_ate;
80 };
81 
82 struct tegra_tsensor {
83 	const char *name;
84 	const u32 base;
85 	const struct tegra_tsensor_configuration *config;
86 	const u32 calib_fuse_offset;
87 	/*
88 	 * Correction values used to modify values read from
89 	 * calibration fuses
90 	 */
91 	const s32 fuse_corr_alpha, fuse_corr_beta;
92 	const struct tegra_tsensor_group *group;
93 };
94 
95 struct tegra_soctherm_fuse {
96 	u32 fuse_base_cp_mask, fuse_base_cp_shift;
97 	u32 fuse_base_ft_mask, fuse_base_ft_shift;
98 	u32 fuse_shift_ft_mask, fuse_shift_ft_shift;
99 	u32 fuse_spare_realignment;
100 };
101 
102 struct tsensor_shared_calib {
103 	u32 base_cp, base_ft;
104 	u32 actual_temp_cp, actual_temp_ft;
105 };
106 
107 struct tegra_soctherm_soc {
108 	const struct tegra_tsensor *tsensors;
109 	const unsigned int num_tsensors;
110 	const struct tegra_tsensor_group **ttgs;
111 	const unsigned int num_ttgs;
112 	const struct tegra_soctherm_fuse *tfuse;
113 	const int thresh_grain;
114 	const unsigned int bptt;
115 	const bool use_ccroc;
116 };
117 
118 int tegra_calc_shared_calib(const struct tegra_soctherm_fuse *tfuse,
119 			    struct tsensor_shared_calib *shared);
120 int tegra_calc_tsensor_calib(const struct tegra_tsensor *sensor,
121 			     const struct tsensor_shared_calib *shared,
122 			     u32 *calib);
123 
124 #ifdef CONFIG_ARCH_TEGRA_124_SOC
125 extern const struct tegra_soctherm_soc tegra124_soctherm;
126 #endif
127 
128 #ifdef CONFIG_ARCH_TEGRA_132_SOC
129 extern const struct tegra_soctherm_soc tegra132_soctherm;
130 #endif
131 
132 #ifdef CONFIG_ARCH_TEGRA_210_SOC
133 extern const struct tegra_soctherm_soc tegra210_soctherm;
134 #endif
135 
136 #endif
137 
138