drivers/thermal/ti-soc-thermal/omap4-thermal-data.c

   1 /*
   2  * OMAP4 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 "omap4xxx-bandgap.h"
  22
  23 /*
  24  * OMAP4430 has one instance of thermal sensor for MPU
  25  * need to describe the individual bit fields
  26  */
  27 static struct temp_sensor_registers
  28 omap4430_mpu_temp_sensor_registers = {
  29         .temp_sensor_ctrl = OMAP4430_TEMP_SENSOR_CTRL_OFFSET,
  30         .bgap_tempsoff_mask = OMAP4430_BGAP_TEMPSOFF_MASK,
  31         .bgap_soc_mask = OMAP4430_BGAP_TEMP_SENSOR_SOC_MASK,
  32         .bgap_eocz_mask = OMAP4430_BGAP_TEMP_SENSOR_EOCZ_MASK,
  33         .bgap_dtemp_mask = OMAP4430_BGAP_TEMP_SENSOR_DTEMP_MASK,
  34
  35         .bgap_mode_ctrl = OMAP4430_TEMP_SENSOR_CTRL_OFFSET,
  36         .mode_ctrl_mask = OMAP4430_SINGLE_MODE_MASK,
  37
  38         .bgap_efuse = OMAP4430_FUSE_OPP_BGAP,
  39 };
  40
  41 /* Thresholds and limits for OMAP4430 MPU temperature sensor */
  42 static struct temp_sensor_data omap4430_mpu_temp_sensor_data = {
  43         .min_freq = OMAP4430_MIN_FREQ,
  44         .max_freq = OMAP4430_MAX_FREQ,
  45         .max_temp = OMAP4430_MAX_TEMP,
  46         .min_temp = OMAP4430_MIN_TEMP,
  47         .hyst_val = OMAP4430_HYST_VAL,
  48 };
  49
  50 /*
  51  * Temperature values in milli degree celsius
  52  * ADC code values from 13 to 107, see TRM
  53  * "18.4.10.2.3 ADC Codes Versus Temperature".
  54  */
  55 static const int
  56 omap4430_adc_to_temp[OMAP4430_ADC_END_VALUE - OMAP4430_ADC_START_VALUE + 1] = {
  57         -40000, -38000, -35000, -34000, -32000, -30000, -28000, -26000, -24000,
  58         -22000, -20000, -18500, -17000, -15000, -13500, -12000, -10000, -8000,
  59         -6500, -5000, -3500, -1500, 0, 2000, 3500, 5000, 6500, 8500, 10000,
  60         12000, 13500, 15000, 17000, 19000, 21000, 23000, 25000, 27000, 28500,
  61         30000, 32000, 33500, 35000, 37000, 38500, 40000, 42000, 43500, 45000,
  62         47000, 48500, 50000, 52000, 53500, 55000, 57000, 58500, 60000, 62000,
  63         64000, 66000, 68000, 70000, 71500, 73500, 75000, 77000, 78500, 80000,
  64         82000, 83500, 85000, 87000, 88500, 90000, 92000, 93500, 95000, 97000,
  65         98500, 100000, 102000, 103500, 105000, 107000, 109000, 111000, 113000,
  66         115000, 117000, 118500, 120000, 122000, 123500, 125000,
  67 };
  68
  69 /* OMAP4430 data */
  70 const struct ti_bandgap_data omap4430_data = {
  71         .features = TI_BANDGAP_FEATURE_MODE_CONFIG |
  72                         TI_BANDGAP_FEATURE_CLK_CTRL |
  73                         TI_BANDGAP_FEATURE_POWER_SWITCH,
  74         .fclock_name = "bandgap_fclk",
  75         .div_ck_name = "bandgap_fclk",
  76         .conv_table = omap4430_adc_to_temp,
  77         .adc_start_val = OMAP4430_ADC_START_VALUE,
  78         .adc_end_val = OMAP4430_ADC_END_VALUE,
  79         .expose_sensor = ti_thermal_expose_sensor,
  80         .remove_sensor = ti_thermal_remove_sensor,
  81         .sensors = {
  82                 {
  83                 .registers = &omap4430_mpu_temp_sensor_registers,
  84                 .ts_data = &omap4430_mpu_temp_sensor_data,
  85                 .domain = "cpu",
  86                 .slope = OMAP_GRADIENT_SLOPE_4430,
  87                 .constant = OMAP_GRADIENT_CONST_4430,
  88                 .slope_pcb = OMAP_GRADIENT_SLOPE_W_PCB_4430,
  89                 .constant_pcb = OMAP_GRADIENT_CONST_W_PCB_4430,
  90                 .register_cooling = ti_thermal_register_cpu_cooling,
  91                 .unregister_cooling = ti_thermal_unregister_cpu_cooling,
  92                 },
  93         },
  94         .sensor_count = 1,
  95 };
  96 /*
  97  * OMAP4460 has one instance of thermal sensor for MPU
  98  * need to describe the individual bit fields
  99  */
 100 static struct temp_sensor_registers
 101 omap4460_mpu_temp_sensor_registers = {
 102         .temp_sensor_ctrl = OMAP4460_TEMP_SENSOR_CTRL_OFFSET,
 103         .bgap_tempsoff_mask = OMAP4460_BGAP_TEMPSOFF_MASK,
 104         .bgap_soc_mask = OMAP4460_BGAP_TEMP_SENSOR_SOC_MASK,
 105         .bgap_eocz_mask = OMAP4460_BGAP_TEMP_SENSOR_EOCZ_MASK,
 106         .bgap_dtemp_mask = OMAP4460_BGAP_TEMP_SENSOR_DTEMP_MASK,
 107
 108         .bgap_mask_ctrl = OMAP4460_BGAP_CTRL_OFFSET,
 109         .mask_hot_mask = OMAP4460_MASK_HOT_MASK,
 110         .mask_cold_mask = OMAP4460_MASK_COLD_MASK,
 111
 112         .bgap_mode_ctrl = OMAP4460_BGAP_CTRL_OFFSET,
 113         .mode_ctrl_mask = OMAP4460_SINGLE_MODE_MASK,
 114
 115         .bgap_counter = OMAP4460_BGAP_COUNTER_OFFSET,
 116         .counter_mask = OMAP4460_COUNTER_MASK,
 117
 118         .bgap_threshold = OMAP4460_BGAP_THRESHOLD_OFFSET,
 119         .threshold_thot_mask = OMAP4460_T_HOT_MASK,
 120         .threshold_tcold_mask = OMAP4460_T_COLD_MASK,
 121
 122         .tshut_threshold = OMAP4460_BGAP_TSHUT_OFFSET,
 123         .tshut_hot_mask = OMAP4460_TSHUT_HOT_MASK,
 124         .tshut_cold_mask = OMAP4460_TSHUT_COLD_MASK,
 125
 126         .bgap_status = OMAP4460_BGAP_STATUS_OFFSET,
 127         .status_clean_stop_mask = OMAP4460_CLEAN_STOP_MASK,
 128         .status_bgap_alert_mask = OMAP4460_BGAP_ALERT_MASK,
 129         .status_hot_mask = OMAP4460_HOT_FLAG_MASK,
 130         .status_cold_mask = OMAP4460_COLD_FLAG_MASK,
 131
 132         .bgap_efuse = OMAP4460_FUSE_OPP_BGAP,
 133 };
 134
 135 /* Thresholds and limits for OMAP4460 MPU temperature sensor */
 136 static struct temp_sensor_data omap4460_mpu_temp_sensor_data = {
 137         .tshut_hot = OMAP4460_TSHUT_HOT,
 138         .tshut_cold = OMAP4460_TSHUT_COLD,
 139         .t_hot = OMAP4460_T_HOT,
 140         .t_cold = OMAP4460_T_COLD,
 141         .min_freq = OMAP4460_MIN_FREQ,
 142         .max_freq = OMAP4460_MAX_FREQ,
 143         .max_temp = OMAP4460_MAX_TEMP,
 144         .min_temp = OMAP4460_MIN_TEMP,
 145         .hyst_val = OMAP4460_HYST_VAL,
 146         .update_int1 = 1000,
 147         .update_int2 = 2000,
 148 };
 149
 150 /*
 151  * Temperature values in milli degree celsius
 152  * ADC code values from 530 to 923
 153  */
 154 static const int
 155 omap4460_adc_to_temp[OMAP4460_ADC_END_VALUE - OMAP4460_ADC_START_VALUE + 1] = {
 156         -40000, -40000, -40000, -40000, -39800, -39400, -39000, -38600, -38200,
 157         -37800, -37300, -36800, -36400, -36000, -35600, -35200, -34800,
 158         -34300, -33800, -33400, -33000, -32600, -32200, -31800, -31300,
 159         -30800, -30400, -30000, -29600, -29200, -28700, -28200, -27800,
 160         -27400, -27000, -26600, -26200, -25700, -25200, -24800, -24400,
 161         -24000, -23600, -23200, -22700, -22200, -21800, -21400, -21000,
 162         -20600, -20200, -19700, -19200, -18800, -18400, -18000, -17600,
 163         -17200, -16700, -16200, -15800, -15400, -15000, -14600, -14200,
 164         -13700, -13200, -12800, -12400, -12000, -11600, -11200, -10700,
 165         -10200, -9800, -9400, -9000, -8600, -8200, -7700, -7200, -6800,
 166         -6400, -6000, -5600, -5200, -4800, -4300, -3800, -3400, -3000,
 167         -2600, -2200, -1800, -1300, -800, -400, 0, 400, 800, 1200, 1600,
 168         2100, 2600, 3000, 3400, 3800, 4200, 4600, 5100, 5600, 6000, 6400,
 169         6800, 7200, 7600, 8000, 8500, 9000, 9400, 9800, 10200, 10600, 11000,
 170         11400, 11900, 12400, 12800, 13200, 13600, 14000, 14400, 14800,
 171         15300, 15800, 16200, 16600, 17000, 17400, 17800, 18200, 18700,
 172         19200, 19600, 20000, 20400, 20800, 21200, 21600, 22100, 22600,
 173         23000, 23400, 23800, 24200, 24600, 25000, 25400, 25900, 26400,
 174         26800, 27200, 27600, 28000, 28400, 28800, 29300, 29800, 30200,
 175         30600, 31000, 31400, 31800, 32200, 32600, 33100, 33600, 34000,
 176         34400, 34800, 35200, 35600, 36000, 36400, 36800, 37300, 37800,
 177         38200, 38600, 39000, 39400, 39800, 40200, 40600, 41100, 41600,
 178         42000, 42400, 42800, 43200, 43600, 44000, 44400, 44800, 45300,
 179         45800, 46200, 46600, 47000, 47400, 47800, 48200, 48600, 49000,
 180         49500, 50000, 50400, 50800, 51200, 51600, 52000, 52400, 52800,
 181         53200, 53700, 54200, 54600, 55000, 55400, 55800, 56200, 56600,
 182         57000, 57400, 57800, 58200, 58700, 59200, 59600, 60000, 60400,
 183         60800, 61200, 61600, 62000, 62400, 62800, 63300, 63800, 64200,
 184         64600, 65000, 65400, 65800, 66200, 66600, 67000, 67400, 67800,
 185         68200, 68700, 69200, 69600, 70000, 70400, 70800, 71200, 71600,
 186         72000, 72400, 72800, 73200, 73600, 74100, 74600, 75000, 75400,
 187         75800, 76200, 76600, 77000, 77400, 77800, 78200, 78600, 79000,
 188         79400, 79800, 80300, 80800, 81200, 81600, 82000, 82400, 82800,
 189         83200, 83600, 84000, 84400, 84800, 85200, 85600, 86000, 86400,
 190         86800, 87300, 87800, 88200, 88600, 89000, 89400, 89800, 90200,
 191         90600, 91000, 91400, 91800, 92200, 92600, 93000, 93400, 93800,
 192         94200, 94600, 95000, 95500, 96000, 96400, 96800, 97200, 97600,
 193         98000, 98400, 98800, 99200, 99600, 100000, 100400, 100800, 101200,
 194         101600, 102000, 102400, 102800, 103200, 103600, 104000, 104400,
 195         104800, 105200, 105600, 106100, 106600, 107000, 107400, 107800,
 196         108200, 108600, 109000, 109400, 109800, 110200, 110600, 111000,
 197         111400, 111800, 112200, 112600, 113000, 113400, 113800, 114200,
 198         114600, 115000, 115400, 115800, 116200, 116600, 117000, 117400,
 199         117800, 118200, 118600, 119000, 119400, 119800, 120200, 120600,
 200         121000, 121400, 121800, 122200, 122600, 123000, 123400, 123800, 124200,
 201         124600, 124900, 125000, 125000, 125000, 125000
 202 };
 203
 204 /* OMAP4460 data */
 205 const struct ti_bandgap_data omap4460_data = {
 206         .features = TI_BANDGAP_FEATURE_TSHUT |
 207                         TI_BANDGAP_FEATURE_TSHUT_CONFIG |
 208                         TI_BANDGAP_FEATURE_TALERT |
 209                         TI_BANDGAP_FEATURE_MODE_CONFIG |
 210                         TI_BANDGAP_FEATURE_POWER_SWITCH |
 211                         TI_BANDGAP_FEATURE_CLK_CTRL |
 212                         TI_BANDGAP_FEATURE_COUNTER,
 213         .fclock_name = "bandgap_ts_fclk",
 214         .div_ck_name = "div_ts_ck",
 215         .conv_table = omap4460_adc_to_temp,
 216         .adc_start_val = OMAP4460_ADC_START_VALUE,
 217         .adc_end_val = OMAP4460_ADC_END_VALUE,
 218         .expose_sensor = ti_thermal_expose_sensor,
 219         .remove_sensor = ti_thermal_remove_sensor,
 220         .report_temperature = ti_thermal_report_sensor_temperature,
 221         .sensors = {
 222                 {
 223                 .registers = &omap4460_mpu_temp_sensor_registers,
 224                 .ts_data = &omap4460_mpu_temp_sensor_data,
 225                 .domain = "cpu",
 226                 .slope = OMAP_GRADIENT_SLOPE_4460,
 227                 .constant = OMAP_GRADIENT_CONST_4460,
 228                 .slope_pcb = OMAP_GRADIENT_SLOPE_W_PCB_4460,
 229                 .constant_pcb = OMAP_GRADIENT_CONST_W_PCB_4460,
 230                 .register_cooling = ti_thermal_register_cpu_cooling,
 231                 .unregister_cooling = ti_thermal_unregister_cpu_cooling,
 232                 },
 233         },
 234         .sensor_count = 1,
 235 };
 236
 237 /* OMAP4470 data */
 238 const struct ti_bandgap_data omap4470_data = {
 239         .features = TI_BANDGAP_FEATURE_TSHUT |
 240                         TI_BANDGAP_FEATURE_TSHUT_CONFIG |
 241                         TI_BANDGAP_FEATURE_TALERT |
 242                         TI_BANDGAP_FEATURE_MODE_CONFIG |
 243                         TI_BANDGAP_FEATURE_POWER_SWITCH |
 244                         TI_BANDGAP_FEATURE_CLK_CTRL |
 245                         TI_BANDGAP_FEATURE_COUNTER,
 246         .fclock_name = "bandgap_ts_fclk",
 247         .div_ck_name = "div_ts_ck",
 248         .conv_table = omap4460_adc_to_temp,
 249         .adc_start_val = OMAP4460_ADC_START_VALUE,
 250         .adc_end_val = OMAP4460_ADC_END_VALUE,
 251         .expose_sensor = ti_thermal_expose_sensor,
 252         .remove_sensor = ti_thermal_remove_sensor,
 253         .report_temperature = ti_thermal_report_sensor_temperature,
 254         .sensors = {
 255                 {
 256                 .registers = &omap4460_mpu_temp_sensor_registers,
 257                 .ts_data = &omap4460_mpu_temp_sensor_data,
 258                 .domain = "cpu",
 259                 .slope = OMAP_GRADIENT_SLOPE_4470,
 260                 .constant = OMAP_GRADIENT_CONST_4470,
 261                 .slope_pcb = OMAP_GRADIENT_SLOPE_W_PCB_4470,
 262                 .constant_pcb = OMAP_GRADIENT_CONST_W_PCB_4470,
 263                 .register_cooling = ti_thermal_register_cpu_cooling,
 264                 .unregister_cooling = ti_thermal_unregister_cpu_cooling,
 265                 },
 266         },
 267         .sensor_count = 1,
 268 };