drivers/thermal/tegra/tegra210-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 #include <soc/tegra/fuse.h>
  18
  19 #include <dt-bindings/thermal/tegra124-soctherm.h>
  20
  21 #include "soctherm.h"
  22
  23 #define TEGRA210_THERMTRIP_ANY_EN_MASK          (0x1 << 31)
  24 #define TEGRA210_THERMTRIP_MEM_EN_MASK          (0x1 << 30)
  25 #define TEGRA210_THERMTRIP_GPU_EN_MASK          (0x1 << 29)
  26 #define TEGRA210_THERMTRIP_CPU_EN_MASK          (0x1 << 28)
  27 #define TEGRA210_THERMTRIP_TSENSE_EN_MASK       (0x1 << 27)
  28 #define TEGRA210_THERMTRIP_GPUMEM_THRESH_MASK   (0x1ff << 18)
  29 #define TEGRA210_THERMTRIP_CPU_THRESH_MASK      (0x1ff << 9)
  30 #define TEGRA210_THERMTRIP_TSENSE_THRESH_MASK   0x1ff
  31
  32 #define TEGRA210_THRESH_GRAIN                   500
  33
  34 static const struct tegra_tsensor_configuration tegra210_tsensor_config = {
  35         .tall = 16300,
  36         .tiddq_en = 1,
  37         .ten_count = 1,
  38         .tsample = 120,
  39         .tsample_ate = 480,
  40 };
  41
  42 static const struct tegra_tsensor_group tegra210_tsensor_group_cpu = {
  43         .id = TEGRA124_SOCTHERM_SENSOR_CPU,
  44         .name = "cpu",
  45         .sensor_temp_offset = SENSOR_TEMP1,
  46         .sensor_temp_mask = SENSOR_TEMP1_CPU_TEMP_MASK,
  47         .pdiv = 8,
  48         .pdiv_ate = 8,
  49         .pdiv_mask = SENSOR_PDIV_CPU_MASK,
  50         .pllx_hotspot_diff = 10,
  51         .pllx_hotspot_mask = SENSOR_HOTSPOT_CPU_MASK,
  52         .thermtrip_any_en_mask = TEGRA210_THERMTRIP_ANY_EN_MASK,
  53         .thermtrip_enable_mask = TEGRA210_THERMTRIP_CPU_EN_MASK,
  54         .thermtrip_threshold_mask = TEGRA210_THERMTRIP_CPU_THRESH_MASK,
  55 };
  56
  57 static const struct tegra_tsensor_group tegra210_tsensor_group_gpu = {
  58         .id = TEGRA124_SOCTHERM_SENSOR_GPU,
  59         .name = "gpu",
  60         .sensor_temp_offset = SENSOR_TEMP1,
  61         .sensor_temp_mask = SENSOR_TEMP1_GPU_TEMP_MASK,
  62         .pdiv = 8,
  63         .pdiv_ate = 8,
  64         .pdiv_mask = SENSOR_PDIV_GPU_MASK,
  65         .pllx_hotspot_diff = 5,
  66         .pllx_hotspot_mask = SENSOR_HOTSPOT_GPU_MASK,
  67         .thermtrip_any_en_mask = TEGRA210_THERMTRIP_ANY_EN_MASK,
  68         .thermtrip_enable_mask = TEGRA210_THERMTRIP_GPU_EN_MASK,
  69         .thermtrip_threshold_mask = TEGRA210_THERMTRIP_GPUMEM_THRESH_MASK,
  70 };
  71
  72 static const struct tegra_tsensor_group tegra210_tsensor_group_pll = {
  73         .id = TEGRA124_SOCTHERM_SENSOR_PLLX,
  74         .name = "pll",
  75         .sensor_temp_offset = SENSOR_TEMP2,
  76         .sensor_temp_mask = SENSOR_TEMP2_PLLX_TEMP_MASK,
  77         .pdiv = 8,
  78         .pdiv_ate = 8,
  79         .pdiv_mask = SENSOR_PDIV_PLLX_MASK,
  80         .thermtrip_any_en_mask = TEGRA210_THERMTRIP_ANY_EN_MASK,
  81         .thermtrip_enable_mask = TEGRA210_THERMTRIP_TSENSE_EN_MASK,
  82         .thermtrip_threshold_mask = TEGRA210_THERMTRIP_TSENSE_THRESH_MASK,
  83 };
  84
  85 static const struct tegra_tsensor_group tegra210_tsensor_group_mem = {
  86         .id = TEGRA124_SOCTHERM_SENSOR_MEM,
  87         .name = "mem",
  88         .sensor_temp_offset = SENSOR_TEMP2,
  89         .sensor_temp_mask = SENSOR_TEMP2_MEM_TEMP_MASK,
  90         .pdiv = 8,
  91         .pdiv_ate = 8,
  92         .pdiv_mask = SENSOR_PDIV_MEM_MASK,
  93         .pllx_hotspot_diff = 0,
  94         .pllx_hotspot_mask = SENSOR_HOTSPOT_MEM_MASK,
  95         .thermtrip_any_en_mask = TEGRA210_THERMTRIP_ANY_EN_MASK,
  96         .thermtrip_enable_mask = TEGRA210_THERMTRIP_MEM_EN_MASK,
  97         .thermtrip_threshold_mask = TEGRA210_THERMTRIP_GPUMEM_THRESH_MASK,
  98 };
  99
 100 static const struct tegra_tsensor_group *tegra210_tsensor_groups[] = {
 101         &tegra210_tsensor_group_cpu,
 102         &tegra210_tsensor_group_gpu,
 103         &tegra210_tsensor_group_pll,
 104         &tegra210_tsensor_group_mem,
 105 };
 106
 107 static const struct tegra_tsensor tegra210_tsensors[] = {
 108         {
 109                 .name = "cpu0",
 110                 .base = 0xc0,
 111                 .config = &tegra210_tsensor_config,
 112                 .calib_fuse_offset = 0x098,
 113                 .fuse_corr_alpha = 1085000,
 114                 .fuse_corr_beta = 3244200,
 115                 .group = &tegra210_tsensor_group_cpu,
 116         }, {
 117                 .name = "cpu1",
 118                 .base = 0xe0,
 119                 .config = &tegra210_tsensor_config,
 120                 .calib_fuse_offset = 0x084,
 121                 .fuse_corr_alpha = 1126200,
 122                 .fuse_corr_beta = -67500,
 123                 .group = &tegra210_tsensor_group_cpu,
 124         }, {
 125                 .name = "cpu2",
 126                 .base = 0x100,
 127                 .config = &tegra210_tsensor_config,
 128                 .calib_fuse_offset = 0x088,
 129                 .fuse_corr_alpha = 1098400,
 130                 .fuse_corr_beta = 2251100,
 131                 .group = &tegra210_tsensor_group_cpu,
 132         }, {
 133                 .name = "cpu3",
 134                 .base = 0x120,
 135                 .config = &tegra210_tsensor_config,
 136                 .calib_fuse_offset = 0x12c,
 137                 .fuse_corr_alpha = 1108000,
 138                 .fuse_corr_beta = 602700,
 139                 .group = &tegra210_tsensor_group_cpu,
 140         }, {
 141                 .name = "mem0",
 142                 .base = 0x140,
 143                 .config = &tegra210_tsensor_config,
 144                 .calib_fuse_offset = 0x158,
 145                 .fuse_corr_alpha = 1069200,
 146                 .fuse_corr_beta = 3549900,
 147                 .group = &tegra210_tsensor_group_mem,
 148         }, {
 149                 .name = "mem1",
 150                 .base = 0x160,
 151                 .config = &tegra210_tsensor_config,
 152                 .calib_fuse_offset = 0x15c,
 153                 .fuse_corr_alpha = 1173700,
 154                 .fuse_corr_beta = -6263600,
 155                 .group = &tegra210_tsensor_group_mem,
 156         }, {
 157                 .name = "gpu",
 158                 .base = 0x180,
 159                 .config = &tegra210_tsensor_config,
 160                 .calib_fuse_offset = 0x154,
 161                 .fuse_corr_alpha = 1074300,
 162                 .fuse_corr_beta = 2734900,
 163                 .group = &tegra210_tsensor_group_gpu,
 164         }, {
 165                 .name = "pllx",
 166                 .base = 0x1a0,
 167                 .config = &tegra210_tsensor_config,
 168                 .calib_fuse_offset = 0x160,
 169                 .fuse_corr_alpha = 1039700,
 170                 .fuse_corr_beta = 6829100,
 171                 .group = &tegra210_tsensor_group_pll,
 172         },
 173 };
 174
 175 /*
 176  * Mask/shift bits in FUSE_TSENSOR_COMMON and
 177  * FUSE_TSENSOR_COMMON, which are described in
 178  * tegra_soctherm_fuse.c
 179  */
 180 static const struct tegra_soctherm_fuse tegra210_soctherm_fuse = {
 181         .fuse_base_cp_mask = 0x3ff << 11,
 182         .fuse_base_cp_shift = 11,
 183         .fuse_base_ft_mask = 0x7ff << 21,
 184         .fuse_base_ft_shift = 21,
 185         .fuse_shift_ft_mask = 0x1f << 6,
 186         .fuse_shift_ft_shift = 6,
 187         .fuse_spare_realignment = 0,
 188 };
 189
 190 const struct tegra_soctherm_soc tegra210_soctherm = {
 191         .tsensors = tegra210_tsensors,
 192         .num_tsensors = ARRAY_SIZE(tegra210_tsensors),
 193         .ttgs = tegra210_tsensor_groups,
 194         .num_ttgs = ARRAY_SIZE(tegra210_tsensor_groups),
 195         .tfuse = &tegra210_soctherm_fuse,
 196         .thresh_grain = TEGRA210_THRESH_GRAIN,
 197 };