drivers/thermal/ti-soc-thermal/omap5-thermal-data.c

   1 /*
   2  * OMAP5 thermal driver.
   3  *
   4  * Copyright (C) 2011-2012 Texas Instruments Inc.
   5  * Contact:
   6  *      Eduardo Valentin <eduardo.valentin@ti.com>
   7  *
   8  * This software is licensed under the terms of the GNU General Public
   9  * License version 2, as published by the Free Software Foundation, and
  10  * may be copied, distributed, and modified under those terms.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  15  * GNU General Public License for more details.
  16  *
  17  */
  18
  19 #include "ti-thermal.h"
  20 #include "ti-bandgap.h"
  21 #include "omap5xxx-bandgap.h"
  22
  23 /*
  24  * OMAP5430 has three instances of thermal sensor for MPU, GPU & CORE,
  25  * need to describe the individual registers and bit fields.
  26  */
  27
  28 /*
  29  * OMAP5430 MPU thermal sensor register offset and bit-fields
  30  */
  31 static struct temp_sensor_registers
  32 omap5430_mpu_temp_sensor_registers = {
  33         .temp_sensor_ctrl = OMAP5430_TEMP_SENSOR_MPU_OFFSET,
  34         .bgap_tempsoff_mask = OMAP5430_BGAP_TEMPSOFF_MASK,
  35         .bgap_eocz_mask = OMAP5430_BGAP_TEMP_SENSOR_EOCZ_MASK,
  36         .bgap_dtemp_mask = OMAP5430_BGAP_TEMP_SENSOR_DTEMP_MASK,
  37
  38         .bgap_mask_ctrl = OMAP5430_BGAP_CTRL_OFFSET,
  39         .mask_hot_mask = OMAP5430_MASK_HOT_MPU_MASK,
  40         .mask_cold_mask = OMAP5430_MASK_COLD_MPU_MASK,
  41         .mask_sidlemode_mask = OMAP5430_MASK_SIDLEMODE_MASK,
  42         .mask_counter_delay_mask = OMAP5430_MASK_COUNTER_DELAY_MASK,
  43         .mask_freeze_mask = OMAP5430_MASK_FREEZE_MPU_MASK,
  44         .mask_clear_mask = OMAP5430_MASK_CLEAR_MPU_MASK,
  45         .mask_clear_accum_mask = OMAP5430_MASK_CLEAR_ACCUM_MPU_MASK,
  46
  47
  48         .bgap_counter = OMAP5430_BGAP_CTRL_OFFSET,
  49         .counter_mask = OMAP5430_COUNTER_MASK,
  50
  51         .bgap_threshold = OMAP5430_BGAP_THRESHOLD_MPU_OFFSET,
  52         .threshold_thot_mask = OMAP5430_T_HOT_MASK,
  53         .threshold_tcold_mask = OMAP5430_T_COLD_MASK,
  54
  55         .tshut_threshold = OMAP5430_BGAP_TSHUT_MPU_OFFSET,
  56         .tshut_hot_mask = OMAP5430_TSHUT_HOT_MASK,
  57         .tshut_cold_mask = OMAP5430_TSHUT_COLD_MASK,
  58
  59         .bgap_status = OMAP5430_BGAP_STATUS_OFFSET,
  60         .status_clean_stop_mask = 0x0,
  61         .status_bgap_alert_mask = OMAP5430_BGAP_ALERT_MASK,
  62         .status_hot_mask = OMAP5430_HOT_MPU_FLAG_MASK,
  63         .status_cold_mask = OMAP5430_COLD_MPU_FLAG_MASK,
  64
  65         .bgap_cumul_dtemp = OMAP5430_BGAP_CUMUL_DTEMP_MPU_OFFSET,
  66         .ctrl_dtemp_0 = OMAP5430_BGAP_DTEMP_MPU_0_OFFSET,
  67         .ctrl_dtemp_1 = OMAP5430_BGAP_DTEMP_MPU_1_OFFSET,
  68         .ctrl_dtemp_2 = OMAP5430_BGAP_DTEMP_MPU_2_OFFSET,
  69         .ctrl_dtemp_3 = OMAP5430_BGAP_DTEMP_MPU_3_OFFSET,
  70         .ctrl_dtemp_4 = OMAP5430_BGAP_DTEMP_MPU_4_OFFSET,
  71         .bgap_efuse = OMAP5430_FUSE_OPP_BGAP_MPU,
  72 };
  73
  74 /*
  75  * OMAP5430 GPU thermal sensor register offset and bit-fields
  76  */
  77 static struct temp_sensor_registers
  78 omap5430_gpu_temp_sensor_registers = {
  79         .temp_sensor_ctrl = OMAP5430_TEMP_SENSOR_GPU_OFFSET,
  80         .bgap_tempsoff_mask = OMAP5430_BGAP_TEMPSOFF_MASK,
  81         .bgap_eocz_mask = OMAP5430_BGAP_TEMP_SENSOR_EOCZ_MASK,
  82         .bgap_dtemp_mask = OMAP5430_BGAP_TEMP_SENSOR_DTEMP_MASK,
  83
  84         .bgap_mask_ctrl = OMAP5430_BGAP_CTRL_OFFSET,
  85         .mask_hot_mask = OMAP5430_MASK_HOT_GPU_MASK,
  86         .mask_cold_mask = OMAP5430_MASK_COLD_GPU_MASK,
  87         .mask_sidlemode_mask = OMAP5430_MASK_SIDLEMODE_MASK,
  88         .mask_counter_delay_mask = OMAP5430_MASK_COUNTER_DELAY_MASK,
  89         .mask_freeze_mask = OMAP5430_MASK_FREEZE_GPU_MASK,
  90         .mask_clear_mask = OMAP5430_MASK_CLEAR_GPU_MASK,
  91         .mask_clear_accum_mask = OMAP5430_MASK_CLEAR_ACCUM_GPU_MASK,
  92
  93         .bgap_counter = OMAP5430_BGAP_CTRL_OFFSET,
  94         .counter_mask = OMAP5430_COUNTER_MASK,
  95
  96         .bgap_threshold = OMAP5430_BGAP_THRESHOLD_GPU_OFFSET,
  97         .threshold_thot_mask = OMAP5430_T_HOT_MASK,
  98         .threshold_tcold_mask = OMAP5430_T_COLD_MASK,
  99
 100         .tshut_threshold = OMAP5430_BGAP_TSHUT_GPU_OFFSET,
 101         .tshut_hot_mask = OMAP5430_TSHUT_HOT_MASK,
 102         .tshut_cold_mask = OMAP5430_TSHUT_COLD_MASK,
 103
 104         .bgap_status = OMAP5430_BGAP_STATUS_OFFSET,
 105         .status_clean_stop_mask = 0x0,
 106         .status_bgap_alert_mask = OMAP5430_BGAP_ALERT_MASK,
 107         .status_hot_mask = OMAP5430_HOT_GPU_FLAG_MASK,
 108         .status_cold_mask = OMAP5430_COLD_GPU_FLAG_MASK,
 109
 110         .bgap_cumul_dtemp = OMAP5430_BGAP_CUMUL_DTEMP_GPU_OFFSET,
 111         .ctrl_dtemp_0 = OMAP5430_BGAP_DTEMP_GPU_0_OFFSET,
 112         .ctrl_dtemp_1 = OMAP5430_BGAP_DTEMP_GPU_1_OFFSET,
 113         .ctrl_dtemp_2 = OMAP5430_BGAP_DTEMP_GPU_2_OFFSET,
 114         .ctrl_dtemp_3 = OMAP5430_BGAP_DTEMP_GPU_3_OFFSET,
 115         .ctrl_dtemp_4 = OMAP5430_BGAP_DTEMP_GPU_4_OFFSET,
 116
 117         .bgap_efuse = OMAP5430_FUSE_OPP_BGAP_GPU,
 118 };
 119
 120 /*
 121  * OMAP5430 CORE thermal sensor register offset and bit-fields
 122  */
 123 static struct temp_sensor_registers
 124 omap5430_core_temp_sensor_registers = {
 125         .temp_sensor_ctrl = OMAP5430_TEMP_SENSOR_CORE_OFFSET,
 126         .bgap_tempsoff_mask = OMAP5430_BGAP_TEMPSOFF_MASK,
 127         .bgap_eocz_mask = OMAP5430_BGAP_TEMP_SENSOR_EOCZ_MASK,
 128         .bgap_dtemp_mask = OMAP5430_BGAP_TEMP_SENSOR_DTEMP_MASK,
 129
 130         .bgap_mask_ctrl = OMAP5430_BGAP_CTRL_OFFSET,
 131         .mask_hot_mask = OMAP5430_MASK_HOT_CORE_MASK,
 132         .mask_cold_mask = OMAP5430_MASK_COLD_CORE_MASK,
 133         .mask_sidlemode_mask = OMAP5430_MASK_SIDLEMODE_MASK,
 134         .mask_counter_delay_mask = OMAP5430_MASK_COUNTER_DELAY_MASK,
 135         .mask_freeze_mask = OMAP5430_MASK_FREEZE_CORE_MASK,
 136         .mask_clear_mask = OMAP5430_MASK_CLEAR_CORE_MASK,
 137         .mask_clear_accum_mask = OMAP5430_MASK_CLEAR_ACCUM_CORE_MASK,
 138
 139         .bgap_counter = OMAP5430_BGAP_CTRL_OFFSET,
 140         .counter_mask = OMAP5430_COUNTER_MASK,
 141
 142         .bgap_threshold = OMAP5430_BGAP_THRESHOLD_CORE_OFFSET,
 143         .threshold_thot_mask = OMAP5430_T_HOT_MASK,
 144         .threshold_tcold_mask = OMAP5430_T_COLD_MASK,
 145
 146         .tshut_threshold = OMAP5430_BGAP_TSHUT_CORE_OFFSET,
 147         .tshut_hot_mask = OMAP5430_TSHUT_HOT_MASK,
 148         .tshut_cold_mask = OMAP5430_TSHUT_COLD_MASK,
 149
 150         .bgap_status = OMAP5430_BGAP_STATUS_OFFSET,
 151         .status_clean_stop_mask = 0x0,
 152         .status_bgap_alert_mask = OMAP5430_BGAP_ALERT_MASK,
 153         .status_hot_mask = OMAP5430_HOT_CORE_FLAG_MASK,
 154         .status_cold_mask = OMAP5430_COLD_CORE_FLAG_MASK,
 155
 156         .bgap_cumul_dtemp = OMAP5430_BGAP_CUMUL_DTEMP_CORE_OFFSET,
 157         .ctrl_dtemp_0 = OMAP5430_BGAP_DTEMP_CORE_0_OFFSET,
 158         .ctrl_dtemp_1 = OMAP5430_BGAP_DTEMP_CORE_1_OFFSET,
 159         .ctrl_dtemp_2 = OMAP5430_BGAP_DTEMP_CORE_2_OFFSET,
 160         .ctrl_dtemp_3 = OMAP5430_BGAP_DTEMP_CORE_3_OFFSET,
 161         .ctrl_dtemp_4 = OMAP5430_BGAP_DTEMP_CORE_4_OFFSET,
 162
 163         .bgap_efuse = OMAP5430_FUSE_OPP_BGAP_CORE,
 164 };
 165
 166 /* Thresholds and limits for OMAP5430 MPU temperature sensor */
 167 static struct temp_sensor_data omap5430_mpu_temp_sensor_data = {
 168         .tshut_hot = OMAP5430_MPU_TSHUT_HOT,
 169         .tshut_cold = OMAP5430_MPU_TSHUT_COLD,
 170         .t_hot = OMAP5430_MPU_T_HOT,
 171         .t_cold = OMAP5430_MPU_T_COLD,
 172         .min_freq = OMAP5430_MPU_MIN_FREQ,
 173         .max_freq = OMAP5430_MPU_MAX_FREQ,
 174         .max_temp = OMAP5430_MPU_MAX_TEMP,
 175         .min_temp = OMAP5430_MPU_MIN_TEMP,
 176         .hyst_val = OMAP5430_MPU_HYST_VAL,
 177         .update_int1 = 1000,
 178         .update_int2 = 2000,
 179 };
 180
 181 /* Thresholds and limits for OMAP5430 GPU temperature sensor */
 182 static struct temp_sensor_data omap5430_gpu_temp_sensor_data = {
 183         .tshut_hot = OMAP5430_GPU_TSHUT_HOT,
 184         .tshut_cold = OMAP5430_GPU_TSHUT_COLD,
 185         .t_hot = OMAP5430_GPU_T_HOT,
 186         .t_cold = OMAP5430_GPU_T_COLD,
 187         .min_freq = OMAP5430_GPU_MIN_FREQ,
 188         .max_freq = OMAP5430_GPU_MAX_FREQ,
 189         .max_temp = OMAP5430_GPU_MAX_TEMP,
 190         .min_temp = OMAP5430_GPU_MIN_TEMP,
 191         .hyst_val = OMAP5430_GPU_HYST_VAL,
 192         .update_int1 = 1000,
 193         .update_int2 = 2000,
 194 };
 195
 196 /* Thresholds and limits for OMAP5430 CORE temperature sensor */
 197 static struct temp_sensor_data omap5430_core_temp_sensor_data = {
 198         .tshut_hot = OMAP5430_CORE_TSHUT_HOT,
 199         .tshut_cold = OMAP5430_CORE_TSHUT_COLD,
 200         .t_hot = OMAP5430_CORE_T_HOT,
 201         .t_cold = OMAP5430_CORE_T_COLD,
 202         .min_freq = OMAP5430_CORE_MIN_FREQ,
 203         .max_freq = OMAP5430_CORE_MAX_FREQ,
 204         .max_temp = OMAP5430_CORE_MAX_TEMP,
 205         .min_temp = OMAP5430_CORE_MIN_TEMP,
 206         .hyst_val = OMAP5430_CORE_HYST_VAL,
 207         .update_int1 = 1000,
 208         .update_int2 = 2000,
 209 };
 210
 211 /*
 212  * OMAP54xx ES2.0 : Temperature values in milli degree celsius
 213  * ADC code values from 540 to 945
 214  */
 215 static int
 216 omap5430_adc_to_temp[
 217         OMAP5430_ADC_END_VALUE - OMAP5430_ADC_START_VALUE + 1] = {
 218         /* Index 540 - 549 */
 219         -40000, -40000, -40000, -40000, -39800, -39400, -39000, -38600, -38200,
 220         -37800,
 221         /* Index 550 - 559 */
 222         -37400, -37000, -36600, -36200, -35800, -35300, -34700, -34200, -33800,
 223         -33400,
 224         /* Index 560 - 569 */
 225         -33000, -32600, -32200, -31800, -31400, -31000, -30600, -30200, -29800,
 226         -29400,
 227         /* Index 570 - 579 */
 228         -29000, -28600, -28200, -27700, -27100, -26600, -26200, -25800, -25400,
 229         -25000,
 230         /* Index 580 - 589 */
 231         -24600, -24200, -23800, -23400, -23000, -22600, -22200, -21600, -21400,
 232         -21000,
 233         /* Index 590 - 599 */
 234         -20500, -19900, -19400, -19000, -18600, -18200, -17800, -17400, -17000,
 235         -16600,
 236         /* Index 600 - 609 */
 237         -16200, -15800, -15400, -15000, -14600, -14200, -13800, -13400, -13000,
 238         -12500,
 239         /* Index 610 - 619 */
 240         -11900, -11400, -11000, -10600, -10200, -9800, -9400, -9000, -8600,
 241         -8200,
 242         /* Index 620 - 629 */
 243         -7800, -7400, -7000, -6600, -6200, -5800, -5400, -5000, -4500, -3900,
 244         /* Index 630 - 639 */
 245         -3400, -3000, -2600, -2200, -1800, -1400, -1000, -600, -200, 200,
 246         /* Index 640 - 649 */
 247         600, 1000, 1400, 1800, 2200, 2600, 3000, 3400, 3900, 4500,
 248         /* Index 650 - 659 */
 249         5000, 5400, 5800, 6200, 6600, 7000, 7400, 7800, 8200, 8600,
 250         /* Index 660 - 669 */
 251         9000, 9400, 9800, 10200, 10600, 11000, 11400, 11800, 12200, 12700,
 252         /* Index 670 - 679 */
 253         13300, 13800, 14200, 14600, 15000, 15400, 15800, 16200, 16600, 17000,
 254         /* Index 680 - 689 */
 255         17400, 17800, 18200, 18600, 19000, 19400, 19800, 20200, 20600, 21100,
 256         /* Index 690 - 699 */
 257         21400, 21900, 22500, 23000, 23400, 23800, 24200, 24600, 25000, 25400,
 258         /* Index 700 - 709 */
 259         25800, 26200, 26600, 27000, 27400, 27800, 28200, 28600, 29000, 29400,
 260         /* Index 710 - 719 */
 261         29800, 30200, 30600, 31000, 31400, 31900, 32500, 33000, 33400, 33800,
 262         /* Index 720 - 729 */
 263         34200, 34600, 35000, 35400, 35800, 36200, 36600, 37000, 37400, 37800,
 264         /* Index 730 - 739 */
 265         38200, 38600, 39000, 39400, 39800, 40200, 40600, 41000, 41400, 41800,
 266         /* Index 740 - 749 */
 267         42200, 42600, 43100, 43700, 44200, 44600, 45000, 45400, 45800, 46200,
 268         /* Index 750 - 759 */
 269         46600, 47000, 47400, 47800, 48200, 48600, 49000, 49400, 49800, 50200,
 270         /* Index 760 - 769 */
 271         50600, 51000, 51400, 51800, 52200, 52600, 53000, 53400, 53800, 54200,
 272         /* Index 770 - 779 */
 273         54600, 55000, 55400, 55900, 56500, 57000, 57400, 57800, 58200, 58600,
 274         /* Index 780 - 789 */
 275         59000, 59400, 59800, 60200, 60600, 61000, 61400, 61800, 62200, 62600,
 276         /* Index 790 - 799 */
 277         63000, 63400, 63800, 64200, 64600, 65000, 65400, 65800, 66200, 66600,
 278         /* Index 800 - 809 */
 279         67000, 67400, 67800, 68200, 68600, 69000, 69400, 69800, 70200, 70600,
 280         /* Index 810 - 819 */
 281         71000, 71500, 72100, 72600, 73000, 73400, 73800, 74200, 74600, 75000,
 282         /* Index 820 - 829 */
 283         75400, 75800, 76200, 76600, 77000, 77400, 77800, 78200, 78600, 79000,
 284         /* Index 830 - 839 */
 285         79400, 79800, 80200, 80600, 81000, 81400, 81800, 82200, 82600, 83000,
 286         /* Index 840 - 849 */
 287         83400, 83800, 84200, 84600, 85000, 85400, 85800, 86200, 86600, 87000,
 288         /* Index 850 - 859 */
 289         87400, 87800, 88200, 88600, 89000, 89400, 89800, 90200, 90600, 91000,
 290         /* Index 860 - 869 */
 291         91400, 91800, 92200, 92600, 93000, 93400, 93800, 94200, 94600, 95000,
 292         /* Index 870 - 879 */
 293         95400, 95800, 96200, 96600, 97000, 97500, 98100, 98600, 99000, 99400,
 294         /* Index 880 - 889 */
 295         99800, 100200, 100600, 101000, 101400, 101800, 102200, 102600, 103000,
 296         103400,
 297         /* Index 890 - 899 */
 298         103800, 104200, 104600, 105000, 105400, 105800, 106200, 106600, 107000,
 299         107400,
 300         /* Index 900 - 909 */
 301         107800, 108200, 108600, 109000, 109400, 109800, 110200, 110600, 111000,
 302         111400,
 303         /* Index 910 - 919 */
 304         111800, 112200, 112600, 113000, 113400, 113800, 114200, 114600, 115000,
 305         115400,
 306         /* Index 920 - 929 */
 307         115800, 116200, 116600, 117000, 117400, 117800, 118200, 118600, 119000,
 308         119400,
 309         /* Index 930 - 939 */
 310         119800, 120200, 120600, 121000, 121400, 121800, 122400, 122600, 123000,
 311         123400,
 312         /* Index 940 - 945 */
 313         123800, 1242000, 124600, 124900, 125000, 125000,
 314 };
 315
 316 /* OMAP54xx ES2.0 data */
 317 const struct ti_bandgap_data omap5430_data = {
 318         .features = TI_BANDGAP_FEATURE_TSHUT_CONFIG |
 319                         TI_BANDGAP_FEATURE_FREEZE_BIT |
 320                         TI_BANDGAP_FEATURE_TALERT |
 321                         TI_BANDGAP_FEATURE_COUNTER_DELAY |
 322                         TI_BANDGAP_FEATURE_HISTORY_BUFFER,
 323         .fclock_name = "l3instr_ts_gclk_div",
 324         .div_ck_name = "l3instr_ts_gclk_div",
 325         .conv_table = omap5430_adc_to_temp,
 326         .adc_start_val = OMAP5430_ADC_START_VALUE,
 327         .adc_end_val = OMAP5430_ADC_END_VALUE,
 328         .expose_sensor = ti_thermal_expose_sensor,
 329         .remove_sensor = ti_thermal_remove_sensor,
 330         .report_temperature = ti_thermal_report_sensor_temperature,
 331         .sensors = {
 332                 {
 333                 .registers = &omap5430_mpu_temp_sensor_registers,
 334                 .ts_data = &omap5430_mpu_temp_sensor_data,
 335                 .domain = "cpu",
 336                 .register_cooling = ti_thermal_register_cpu_cooling,
 337                 .unregister_cooling = ti_thermal_unregister_cpu_cooling,
 338                 .slope = OMAP_GRADIENT_SLOPE_5430_CPU,
 339                 .constant = OMAP_GRADIENT_CONST_5430_CPU,
 340                 .slope_pcb = OMAP_GRADIENT_SLOPE_W_PCB_5430_CPU,
 341                 .constant_pcb = OMAP_GRADIENT_CONST_W_PCB_5430_CPU,
 342                 },
 343                 {
 344                 .registers = &omap5430_gpu_temp_sensor_registers,
 345                 .ts_data = &omap5430_gpu_temp_sensor_data,
 346                 .domain = "gpu",
 347                 .slope = OMAP_GRADIENT_SLOPE_5430_GPU,
 348                 .constant = OMAP_GRADIENT_CONST_5430_GPU,
 349                 .slope_pcb = OMAP_GRADIENT_SLOPE_W_PCB_5430_GPU,
 350                 .constant_pcb = OMAP_GRADIENT_CONST_W_PCB_5430_GPU,
 351                 },
 352                 {
 353                 .registers = &omap5430_core_temp_sensor_registers,
 354                 .ts_data = &omap5430_core_temp_sensor_data,
 355                 .domain = "core",
 356                 },
 357         },
 358         .sensor_count = 3,
 359 };