drivers/thermal/tegra/tegra132-soctherm.c

   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 #include <linux/module.h>
  16 #include <linux/platform_device.h>
  17
  18 #include <dt-bindings/thermal/tegra124-soctherm.h>
  19
  20 #include "soctherm.h"
  21
  22 #define TEGRA132_THERMTRIP_ANY_EN_MASK          (0x1 << 28)
  23 #define TEGRA132_THERMTRIP_MEM_EN_MASK          (0x1 << 27)
  24 #define TEGRA132_THERMTRIP_GPU_EN_MASK          (0x1 << 26)
  25 #define TEGRA132_THERMTRIP_CPU_EN_MASK          (0x1 << 25)
  26 #define TEGRA132_THERMTRIP_TSENSE_EN_MASK       (0x1 << 24)
  27 #define TEGRA132_THERMTRIP_GPUMEM_THRESH_MASK   (0xff << 16)
  28 #define TEGRA132_THERMTRIP_CPU_THRESH_MASK      (0xff << 8)
  29 #define TEGRA132_THERMTRIP_TSENSE_THRESH_MASK   0xff
  30
  31 #define TEGRA132_THRESH_GRAIN                   1000
  32
  33 static const struct tegra_tsensor_configuration tegra132_tsensor_config = {
  34         .tall = 16300,
  35         .tiddq_en = 1,
  36         .ten_count = 1,
  37         .tsample = 120,
  38         .tsample_ate = 480,
  39 };
  40
  41 static const struct tegra_tsensor_group tegra132_tsensor_group_cpu = {
  42         .id = TEGRA124_SOCTHERM_SENSOR_CPU,
  43         .name = "cpu",
  44         .sensor_temp_offset = SENSOR_TEMP1,
  45         .sensor_temp_mask = SENSOR_TEMP1_CPU_TEMP_MASK,
  46         .pdiv = 8,
  47         .pdiv_ate = 8,
  48         .pdiv_mask = SENSOR_PDIV_CPU_MASK,
  49         .pllx_hotspot_diff = 10,
  50         .pllx_hotspot_mask = SENSOR_HOTSPOT_CPU_MASK,
  51         .thermtrip_any_en_mask = TEGRA132_THERMTRIP_ANY_EN_MASK,
  52         .thermtrip_enable_mask = TEGRA132_THERMTRIP_CPU_EN_MASK,
  53         .thermtrip_threshold_mask = TEGRA132_THERMTRIP_CPU_THRESH_MASK,
  54 };
  55
  56 static const struct tegra_tsensor_group tegra132_tsensor_group_gpu = {
  57         .id = TEGRA124_SOCTHERM_SENSOR_GPU,
  58         .name = "gpu",
  59         .sensor_temp_offset = SENSOR_TEMP1,
  60         .sensor_temp_mask = SENSOR_TEMP1_GPU_TEMP_MASK,
  61         .pdiv = 8,
  62         .pdiv_ate = 8,
  63         .pdiv_mask = SENSOR_PDIV_GPU_MASK,
  64         .pllx_hotspot_diff = 5,
  65         .pllx_hotspot_mask = SENSOR_HOTSPOT_GPU_MASK,
  66         .thermtrip_any_en_mask = TEGRA132_THERMTRIP_ANY_EN_MASK,
  67         .thermtrip_enable_mask = TEGRA132_THERMTRIP_GPU_EN_MASK,
  68         .thermtrip_threshold_mask = TEGRA132_THERMTRIP_GPUMEM_THRESH_MASK,
  69 };
  70
  71 static const struct tegra_tsensor_group tegra132_tsensor_group_pll = {
  72         .id = TEGRA124_SOCTHERM_SENSOR_PLLX,
  73         .name = "pll",
  74         .sensor_temp_offset = SENSOR_TEMP2,
  75         .sensor_temp_mask = SENSOR_TEMP2_PLLX_TEMP_MASK,
  76         .pdiv = 8,
  77         .pdiv_ate = 8,
  78         .pdiv_mask = SENSOR_PDIV_PLLX_MASK,
  79         .thermtrip_any_en_mask = TEGRA132_THERMTRIP_ANY_EN_MASK,
  80         .thermtrip_enable_mask = TEGRA132_THERMTRIP_TSENSE_EN_MASK,
  81         .thermtrip_threshold_mask = TEGRA132_THERMTRIP_TSENSE_THRESH_MASK,
  82 };
  83
  84 static const struct tegra_tsensor_group tegra132_tsensor_group_mem = {
  85         .id = TEGRA124_SOCTHERM_SENSOR_MEM,
  86         .name = "mem",
  87         .sensor_temp_offset = SENSOR_TEMP2,
  88         .sensor_temp_mask = SENSOR_TEMP2_MEM_TEMP_MASK,
  89         .pdiv = 8,
  90         .pdiv_ate = 8,
  91         .pdiv_mask = SENSOR_PDIV_MEM_MASK,
  92         .pllx_hotspot_diff = 0,
  93         .pllx_hotspot_mask = SENSOR_HOTSPOT_MEM_MASK,
  94         .thermtrip_any_en_mask = TEGRA132_THERMTRIP_ANY_EN_MASK,
  95         .thermtrip_enable_mask = TEGRA132_THERMTRIP_MEM_EN_MASK,
  96         .thermtrip_threshold_mask = TEGRA132_THERMTRIP_GPUMEM_THRESH_MASK,
  97 };
  98
  99 static const struct tegra_tsensor_group *tegra132_tsensor_groups[] = {
 100         &tegra132_tsensor_group_cpu,
 101         &tegra132_tsensor_group_gpu,
 102         &tegra132_tsensor_group_pll,
 103         &tegra132_tsensor_group_mem,
 104 };
 105
 106 static struct tegra_tsensor tegra132_tsensors[] = {
 107         {
 108                 .name = "cpu0",
 109                 .base = 0xc0,
 110                 .config = &tegra132_tsensor_config,
 111                 .calib_fuse_offset = 0x098,
 112                 .fuse_corr_alpha = 1126600,
 113                 .fuse_corr_beta = -9433500,
 114                 .group = &tegra132_tsensor_group_cpu,
 115         }, {
 116                 .name = "cpu1",
 117                 .base = 0xe0,
 118                 .config = &tegra132_tsensor_config,
 119                 .calib_fuse_offset = 0x084,
 120                 .fuse_corr_alpha = 1110800,
 121                 .fuse_corr_beta = -7383000,
 122                 .group = &tegra132_tsensor_group_cpu,
 123         }, {
 124                 .name = "cpu2",
 125                 .base = 0x100,
 126                 .config = &tegra132_tsensor_config,
 127                 .calib_fuse_offset = 0x088,
 128                 .fuse_corr_alpha = 1113800,
 129                 .fuse_corr_beta = -6215200,
 130                 .group = &tegra132_tsensor_group_cpu,
 131         }, {
 132                 .name = "cpu3",
 133                 .base = 0x120,
 134                 .config = &tegra132_tsensor_config,
 135                 .calib_fuse_offset = 0x12c,
 136                 .fuse_corr_alpha = 1129600,
 137                 .fuse_corr_beta = -8196100,
 138                 .group = &tegra132_tsensor_group_cpu,
 139         }, {
 140                 .name = "mem0",
 141                 .base = 0x140,
 142                 .config = &tegra132_tsensor_config,
 143                 .calib_fuse_offset = 0x158,
 144                 .fuse_corr_alpha = 1132900,
 145                 .fuse_corr_beta = -6755300,
 146                 .group = &tegra132_tsensor_group_mem,
 147         }, {
 148                 .name = "mem1",
 149                 .base = 0x160,
 150                 .config = &tegra132_tsensor_config,
 151                 .calib_fuse_offset = 0x15c,
 152                 .fuse_corr_alpha = 1142300,
 153                 .fuse_corr_beta = -7374200,
 154                 .group = &tegra132_tsensor_group_mem,
 155         }, {
 156                 .name = "gpu",
 157                 .base = 0x180,
 158                 .config = &tegra132_tsensor_config,
 159                 .calib_fuse_offset = 0x154,
 160                 .fuse_corr_alpha = 1125100,
 161                 .fuse_corr_beta = -6350400,
 162                 .group = &tegra132_tsensor_group_gpu,
 163         }, {
 164                 .name = "pllx",
 165                 .base = 0x1a0,
 166                 .config = &tegra132_tsensor_config,
 167                 .calib_fuse_offset = 0x160,
 168                 .fuse_corr_alpha = 1118100,
 169                 .fuse_corr_beta = -8208800,
 170                 .group = &tegra132_tsensor_group_pll,
 171         },
 172 };
 173
 174 /*
 175  * Mask/shift bits in FUSE_TSENSOR_COMMON and
 176  * FUSE_TSENSOR_COMMON, which are described in
 177  * tegra_soctherm_fuse.c
 178  */
 179 static const struct tegra_soctherm_fuse tegra132_soctherm_fuse = {
 180         .fuse_base_cp_mask = 0x3ff,
 181         .fuse_base_cp_shift = 0,
 182         .fuse_base_ft_mask = 0x7ff << 10,
 183         .fuse_base_ft_shift = 10,
 184         .fuse_shift_ft_mask = 0x1f << 21,
 185         .fuse_shift_ft_shift = 21,
 186         .fuse_spare_realignment = 0x1fc,
 187 };
 188
 189 const struct tegra_soctherm_soc tegra132_soctherm = {
 190         .tsensors = tegra132_tsensors,
 191         .num_tsensors = ARRAY_SIZE(tegra132_tsensors),
 192         .ttgs = tegra132_tsensor_groups,
 193         .num_ttgs = ARRAY_SIZE(tegra132_tsensor_groups),
 194         .tfuse = &tegra132_soctherm_fuse,
 195         .thresh_grain = TEGRA132_THRESH_GRAIN,
 196 };