| /* |
| * OMAP5 thermal driver. |
| * |
| * Copyright (C) 2011-2012 Texas Instruments Inc. |
| * Contact: |
| * Eduardo Valentin <eduardo.valentin@ti.com> |
| * |
| * This software is licensed under the terms of the GNU General Public |
| * License version 2, as published by the Free Software Foundation, and |
| * may be copied, distributed, and modified under those terms. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| */ |
| |
| #include "ti-thermal.h" |
| #include "ti-bandgap.h" |
| #include "omap5xxx-bandgap.h" |
| |
| /* |
| * OMAP5430 has three instances of thermal sensor for MPU, GPU & CORE, |
| * need to describe the individual registers and bit fields. |
| */ |
| |
| /* |
| * OMAP5430 MPU thermal sensor register offset and bit-fields |
| */ |
| static struct temp_sensor_registers |
| omap5430_mpu_temp_sensor_registers = { |
| .temp_sensor_ctrl = OMAP5430_TEMP_SENSOR_MPU_OFFSET, |
| .bgap_tempsoff_mask = OMAP5430_BGAP_TEMPSOFF_MASK, |
| .bgap_eocz_mask = OMAP5430_BGAP_TEMP_SENSOR_EOCZ_MASK, |
| .bgap_dtemp_mask = OMAP5430_BGAP_TEMP_SENSOR_DTEMP_MASK, |
| |
| .bgap_mask_ctrl = OMAP5430_BGAP_CTRL_OFFSET, |
| .mask_hot_mask = OMAP5430_MASK_HOT_MPU_MASK, |
| .mask_cold_mask = OMAP5430_MASK_COLD_MPU_MASK, |
| .mask_sidlemode_mask = OMAP5430_MASK_SIDLEMODE_MASK, |
| .mask_counter_delay_mask = OMAP5430_MASK_COUNTER_DELAY_MASK, |
| .mask_freeze_mask = OMAP5430_MASK_FREEZE_MPU_MASK, |
| .mask_clear_mask = OMAP5430_MASK_CLEAR_MPU_MASK, |
| .mask_clear_accum_mask = OMAP5430_MASK_CLEAR_ACCUM_MPU_MASK, |
| |
| |
| .bgap_counter = OMAP5430_BGAP_CTRL_OFFSET, |
| .counter_mask = OMAP5430_COUNTER_MASK, |
| |
| .bgap_threshold = OMAP5430_BGAP_THRESHOLD_MPU_OFFSET, |
| .threshold_thot_mask = OMAP5430_T_HOT_MASK, |
| .threshold_tcold_mask = OMAP5430_T_COLD_MASK, |
| |
| .tshut_threshold = OMAP5430_BGAP_TSHUT_MPU_OFFSET, |
| .tshut_hot_mask = OMAP5430_TSHUT_HOT_MASK, |
| .tshut_cold_mask = OMAP5430_TSHUT_COLD_MASK, |
| |
| .bgap_status = OMAP5430_BGAP_STATUS_OFFSET, |
| .status_clean_stop_mask = 0x0, |
| .status_bgap_alert_mask = OMAP5430_BGAP_ALERT_MASK, |
| .status_hot_mask = OMAP5430_HOT_MPU_FLAG_MASK, |
| .status_cold_mask = OMAP5430_COLD_MPU_FLAG_MASK, |
| |
| .bgap_cumul_dtemp = OMAP5430_BGAP_CUMUL_DTEMP_MPU_OFFSET, |
| .ctrl_dtemp_0 = OMAP5430_BGAP_DTEMP_MPU_0_OFFSET, |
| .ctrl_dtemp_1 = OMAP5430_BGAP_DTEMP_MPU_1_OFFSET, |
| .ctrl_dtemp_2 = OMAP5430_BGAP_DTEMP_MPU_2_OFFSET, |
| .ctrl_dtemp_3 = OMAP5430_BGAP_DTEMP_MPU_3_OFFSET, |
| .ctrl_dtemp_4 = OMAP5430_BGAP_DTEMP_MPU_4_OFFSET, |
| .bgap_efuse = OMAP5430_FUSE_OPP_BGAP_MPU, |
| }; |
| |
| /* |
| * OMAP5430 GPU thermal sensor register offset and bit-fields |
| */ |
| static struct temp_sensor_registers |
| omap5430_gpu_temp_sensor_registers = { |
| .temp_sensor_ctrl = OMAP5430_TEMP_SENSOR_GPU_OFFSET, |
| .bgap_tempsoff_mask = OMAP5430_BGAP_TEMPSOFF_MASK, |
| .bgap_eocz_mask = OMAP5430_BGAP_TEMP_SENSOR_EOCZ_MASK, |
| .bgap_dtemp_mask = OMAP5430_BGAP_TEMP_SENSOR_DTEMP_MASK, |
| |
| .bgap_mask_ctrl = OMAP5430_BGAP_CTRL_OFFSET, |
| .mask_hot_mask = OMAP5430_MASK_HOT_GPU_MASK, |
| .mask_cold_mask = OMAP5430_MASK_COLD_GPU_MASK, |
| .mask_sidlemode_mask = OMAP5430_MASK_SIDLEMODE_MASK, |
| .mask_counter_delay_mask = OMAP5430_MASK_COUNTER_DELAY_MASK, |
| .mask_freeze_mask = OMAP5430_MASK_FREEZE_GPU_MASK, |
| .mask_clear_mask = OMAP5430_MASK_CLEAR_GPU_MASK, |
| .mask_clear_accum_mask = OMAP5430_MASK_CLEAR_ACCUM_GPU_MASK, |
| |
| .bgap_counter = OMAP5430_BGAP_CTRL_OFFSET, |
| .counter_mask = OMAP5430_COUNTER_MASK, |
| |
| .bgap_threshold = OMAP5430_BGAP_THRESHOLD_GPU_OFFSET, |
| .threshold_thot_mask = OMAP5430_T_HOT_MASK, |
| .threshold_tcold_mask = OMAP5430_T_COLD_MASK, |
| |
| .tshut_threshold = OMAP5430_BGAP_TSHUT_GPU_OFFSET, |
| .tshut_hot_mask = OMAP5430_TSHUT_HOT_MASK, |
| .tshut_cold_mask = OMAP5430_TSHUT_COLD_MASK, |
| |
| .bgap_status = OMAP5430_BGAP_STATUS_OFFSET, |
| .status_clean_stop_mask = 0x0, |
| .status_bgap_alert_mask = OMAP5430_BGAP_ALERT_MASK, |
| .status_hot_mask = OMAP5430_HOT_GPU_FLAG_MASK, |
| .status_cold_mask = OMAP5430_COLD_GPU_FLAG_MASK, |
| |
| .bgap_cumul_dtemp = OMAP5430_BGAP_CUMUL_DTEMP_GPU_OFFSET, |
| .ctrl_dtemp_0 = OMAP5430_BGAP_DTEMP_GPU_0_OFFSET, |
| .ctrl_dtemp_1 = OMAP5430_BGAP_DTEMP_GPU_1_OFFSET, |
| .ctrl_dtemp_2 = OMAP5430_BGAP_DTEMP_GPU_2_OFFSET, |
| .ctrl_dtemp_3 = OMAP5430_BGAP_DTEMP_GPU_3_OFFSET, |
| .ctrl_dtemp_4 = OMAP5430_BGAP_DTEMP_GPU_4_OFFSET, |
| |
| .bgap_efuse = OMAP5430_FUSE_OPP_BGAP_GPU, |
| }; |
| |
| /* |
| * OMAP5430 CORE thermal sensor register offset and bit-fields |
| */ |
| static struct temp_sensor_registers |
| omap5430_core_temp_sensor_registers = { |
| .temp_sensor_ctrl = OMAP5430_TEMP_SENSOR_CORE_OFFSET, |
| .bgap_tempsoff_mask = OMAP5430_BGAP_TEMPSOFF_MASK, |
| .bgap_eocz_mask = OMAP5430_BGAP_TEMP_SENSOR_EOCZ_MASK, |
| .bgap_dtemp_mask = OMAP5430_BGAP_TEMP_SENSOR_DTEMP_MASK, |
| |
| .bgap_mask_ctrl = OMAP5430_BGAP_CTRL_OFFSET, |
| .mask_hot_mask = OMAP5430_MASK_HOT_CORE_MASK, |
| .mask_cold_mask = OMAP5430_MASK_COLD_CORE_MASK, |
| .mask_sidlemode_mask = OMAP5430_MASK_SIDLEMODE_MASK, |
| .mask_counter_delay_mask = OMAP5430_MASK_COUNTER_DELAY_MASK, |
| .mask_freeze_mask = OMAP5430_MASK_FREEZE_CORE_MASK, |
| .mask_clear_mask = OMAP5430_MASK_CLEAR_CORE_MASK, |
| .mask_clear_accum_mask = OMAP5430_MASK_CLEAR_ACCUM_CORE_MASK, |
| |
| .bgap_counter = OMAP5430_BGAP_CTRL_OFFSET, |
| .counter_mask = OMAP5430_COUNTER_MASK, |
| |
| .bgap_threshold = OMAP5430_BGAP_THRESHOLD_CORE_OFFSET, |
| .threshold_thot_mask = OMAP5430_T_HOT_MASK, |
| .threshold_tcold_mask = OMAP5430_T_COLD_MASK, |
| |
| .tshut_threshold = OMAP5430_BGAP_TSHUT_CORE_OFFSET, |
| .tshut_hot_mask = OMAP5430_TSHUT_HOT_MASK, |
| .tshut_cold_mask = OMAP5430_TSHUT_COLD_MASK, |
| |
| .bgap_status = OMAP5430_BGAP_STATUS_OFFSET, |
| .status_clean_stop_mask = 0x0, |
| .status_bgap_alert_mask = OMAP5430_BGAP_ALERT_MASK, |
| .status_hot_mask = OMAP5430_HOT_CORE_FLAG_MASK, |
| .status_cold_mask = OMAP5430_COLD_CORE_FLAG_MASK, |
| |
| .bgap_cumul_dtemp = OMAP5430_BGAP_CUMUL_DTEMP_CORE_OFFSET, |
| .ctrl_dtemp_0 = OMAP5430_BGAP_DTEMP_CORE_0_OFFSET, |
| .ctrl_dtemp_1 = OMAP5430_BGAP_DTEMP_CORE_1_OFFSET, |
| .ctrl_dtemp_2 = OMAP5430_BGAP_DTEMP_CORE_2_OFFSET, |
| .ctrl_dtemp_3 = OMAP5430_BGAP_DTEMP_CORE_3_OFFSET, |
| .ctrl_dtemp_4 = OMAP5430_BGAP_DTEMP_CORE_4_OFFSET, |
| |
| .bgap_efuse = OMAP5430_FUSE_OPP_BGAP_CORE, |
| }; |
| |
| /* Thresholds and limits for OMAP5430 MPU temperature sensor */ |
| static struct temp_sensor_data omap5430_mpu_temp_sensor_data = { |
| .tshut_hot = OMAP5430_MPU_TSHUT_HOT, |
| .tshut_cold = OMAP5430_MPU_TSHUT_COLD, |
| .t_hot = OMAP5430_MPU_T_HOT, |
| .t_cold = OMAP5430_MPU_T_COLD, |
| .min_freq = OMAP5430_MPU_MIN_FREQ, |
| .max_freq = OMAP5430_MPU_MAX_FREQ, |
| .max_temp = OMAP5430_MPU_MAX_TEMP, |
| .min_temp = OMAP5430_MPU_MIN_TEMP, |
| .hyst_val = OMAP5430_MPU_HYST_VAL, |
| .update_int1 = 1000, |
| .update_int2 = 2000, |
| }; |
| |
| /* Thresholds and limits for OMAP5430 GPU temperature sensor */ |
| static struct temp_sensor_data omap5430_gpu_temp_sensor_data = { |
| .tshut_hot = OMAP5430_GPU_TSHUT_HOT, |
| .tshut_cold = OMAP5430_GPU_TSHUT_COLD, |
| .t_hot = OMAP5430_GPU_T_HOT, |
| .t_cold = OMAP5430_GPU_T_COLD, |
| .min_freq = OMAP5430_GPU_MIN_FREQ, |
| .max_freq = OMAP5430_GPU_MAX_FREQ, |
| .max_temp = OMAP5430_GPU_MAX_TEMP, |
| .min_temp = OMAP5430_GPU_MIN_TEMP, |
| .hyst_val = OMAP5430_GPU_HYST_VAL, |
| .update_int1 = 1000, |
| .update_int2 = 2000, |
| }; |
| |
| /* Thresholds and limits for OMAP5430 CORE temperature sensor */ |
| static struct temp_sensor_data omap5430_core_temp_sensor_data = { |
| .tshut_hot = OMAP5430_CORE_TSHUT_HOT, |
| .tshut_cold = OMAP5430_CORE_TSHUT_COLD, |
| .t_hot = OMAP5430_CORE_T_HOT, |
| .t_cold = OMAP5430_CORE_T_COLD, |
| .min_freq = OMAP5430_CORE_MIN_FREQ, |
| .max_freq = OMAP5430_CORE_MAX_FREQ, |
| .max_temp = OMAP5430_CORE_MAX_TEMP, |
| .min_temp = OMAP5430_CORE_MIN_TEMP, |
| .hyst_val = OMAP5430_CORE_HYST_VAL, |
| .update_int1 = 1000, |
| .update_int2 = 2000, |
| }; |
| |
| /* |
| * OMAP54xx ES2.0 : Temperature values in milli degree celsius |
| * ADC code values from 540 to 945 |
| */ |
| static int |
| omap5430_adc_to_temp[ |
| OMAP5430_ADC_END_VALUE - OMAP5430_ADC_START_VALUE + 1] = { |
| /* Index 540 - 549 */ |
| -40000, -40000, -40000, -40000, -39800, -39400, -39000, -38600, -38200, |
| -37800, |
| /* Index 550 - 559 */ |
| -37400, -37000, -36600, -36200, -35800, -35300, -34700, -34200, -33800, |
| -33400, |
| /* Index 560 - 569 */ |
| -33000, -32600, -32200, -31800, -31400, -31000, -30600, -30200, -29800, |
| -29400, |
| /* Index 570 - 579 */ |
| -29000, -28600, -28200, -27700, -27100, -26600, -26200, -25800, -25400, |
| -25000, |
| /* Index 580 - 589 */ |
| -24600, -24200, -23800, -23400, -23000, -22600, -22200, -21600, -21400, |
| -21000, |
| /* Index 590 - 599 */ |
| -20500, -19900, -19400, -19000, -18600, -18200, -17800, -17400, -17000, |
| -16600, |
| /* Index 600 - 609 */ |
| -16200, -15800, -15400, -15000, -14600, -14200, -13800, -13400, -13000, |
| -12500, |
| /* Index 610 - 619 */ |
| -11900, -11400, -11000, -10600, -10200, -9800, -9400, -9000, -8600, |
| -8200, |
| /* Index 620 - 629 */ |
| -7800, -7400, -7000, -6600, -6200, -5800, -5400, -5000, -4500, -3900, |
| /* Index 630 - 639 */ |
| -3400, -3000, -2600, -2200, -1800, -1400, -1000, -600, -200, 200, |
| /* Index 640 - 649 */ |
| 600, 1000, 1400, 1800, 2200, 2600, 3000, 3400, 3900, 4500, |
| /* Index 650 - 659 */ |
| 5000, 5400, 5800, 6200, 6600, 7000, 7400, 7800, 8200, 8600, |
| /* Index 660 - 669 */ |
| 9000, 9400, 9800, 10200, 10600, 11000, 11400, 11800, 12200, 12700, |
| /* Index 670 - 679 */ |
| 13300, 13800, 14200, 14600, 15000, 15400, 15800, 16200, 16600, 17000, |
| /* Index 680 - 689 */ |
| 17400, 17800, 18200, 18600, 19000, 19400, 19800, 20200, 20600, 21100, |
| /* Index 690 - 699 */ |
| 21400, 21900, 22500, 23000, 23400, 23800, 24200, 24600, 25000, 25400, |
| /* Index 700 - 709 */ |
| 25800, 26200, 26600, 27000, 27400, 27800, 28200, 28600, 29000, 29400, |
| /* Index 710 - 719 */ |
| 29800, 30200, 30600, 31000, 31400, 31900, 32500, 33000, 33400, 33800, |
| /* Index 720 - 729 */ |
| 34200, 34600, 35000, 35400, 35800, 36200, 36600, 37000, 37400, 37800, |
| /* Index 730 - 739 */ |
| 38200, 38600, 39000, 39400, 39800, 40200, 40600, 41000, 41400, 41800, |
| /* Index 740 - 749 */ |
| 42200, 42600, 43100, 43700, 44200, 44600, 45000, 45400, 45800, 46200, |
| /* Index 750 - 759 */ |
| 46600, 47000, 47400, 47800, 48200, 48600, 49000, 49400, 49800, 50200, |
| /* Index 760 - 769 */ |
| 50600, 51000, 51400, 51800, 52200, 52600, 53000, 53400, 53800, 54200, |
| /* Index 770 - 779 */ |
| 54600, 55000, 55400, 55900, 56500, 57000, 57400, 57800, 58200, 58600, |
| /* Index 780 - 789 */ |
| 59000, 59400, 59800, 60200, 60600, 61000, 61400, 61800, 62200, 62600, |
| /* Index 790 - 799 */ |
| 63000, 63400, 63800, 64200, 64600, 65000, 65400, 65800, 66200, 66600, |
| /* Index 800 - 809 */ |
| 67000, 67400, 67800, 68200, 68600, 69000, 69400, 69800, 70200, 70600, |
| /* Index 810 - 819 */ |
| 71000, 71500, 72100, 72600, 73000, 73400, 73800, 74200, 74600, 75000, |
| /* Index 820 - 829 */ |
| 75400, 75800, 76200, 76600, 77000, 77400, 77800, 78200, 78600, 79000, |
| /* Index 830 - 839 */ |
| 79400, 79800, 80200, 80600, 81000, 81400, 81800, 82200, 82600, 83000, |
| /* Index 840 - 849 */ |
| 83400, 83800, 84200, 84600, 85000, 85400, 85800, 86200, 86600, 87000, |
| /* Index 850 - 859 */ |
| 87400, 87800, 88200, 88600, 89000, 89400, 89800, 90200, 90600, 91000, |
| /* Index 860 - 869 */ |
| 91400, 91800, 92200, 92600, 93000, 93400, 93800, 94200, 94600, 95000, |
| /* Index 870 - 879 */ |
| 95400, 95800, 96200, 96600, 97000, 97500, 98100, 98600, 99000, 99400, |
| /* Index 880 - 889 */ |
| 99800, 100200, 100600, 101000, 101400, 101800, 102200, 102600, 103000, |
| 103400, |
| /* Index 890 - 899 */ |
| 103800, 104200, 104600, 105000, 105400, 105800, 106200, 106600, 107000, |
| 107400, |
| /* Index 900 - 909 */ |
| 107800, 108200, 108600, 109000, 109400, 109800, 110200, 110600, 111000, |
| 111400, |
| /* Index 910 - 919 */ |
| 111800, 112200, 112600, 113000, 113400, 113800, 114200, 114600, 115000, |
| 115400, |
| /* Index 920 - 929 */ |
| 115800, 116200, 116600, 117000, 117400, 117800, 118200, 118600, 119000, |
| 119400, |
| /* Index 930 - 939 */ |
| 119800, 120200, 120600, 121000, 121400, 121800, 122400, 122600, 123000, |
| 123400, |
| /* Index 940 - 945 */ |
| 123800, 1242000, 124600, 124900, 125000, 125000, |
| }; |
| |
| /* OMAP54xx ES2.0 data */ |
| const struct ti_bandgap_data omap5430_data = { |
| .features = TI_BANDGAP_FEATURE_TSHUT_CONFIG | |
| TI_BANDGAP_FEATURE_FREEZE_BIT | |
| TI_BANDGAP_FEATURE_TALERT | |
| TI_BANDGAP_FEATURE_COUNTER_DELAY | |
| TI_BANDGAP_FEATURE_HISTORY_BUFFER, |
| .fclock_name = "l3instr_ts_gclk_div", |
| .div_ck_name = "l3instr_ts_gclk_div", |
| .conv_table = omap5430_adc_to_temp, |
| .adc_start_val = OMAP5430_ADC_START_VALUE, |
| .adc_end_val = OMAP5430_ADC_END_VALUE, |
| .expose_sensor = ti_thermal_expose_sensor, |
| .remove_sensor = ti_thermal_remove_sensor, |
| .report_temperature = ti_thermal_report_sensor_temperature, |
| .sensors = { |
| { |
| .registers = &omap5430_mpu_temp_sensor_registers, |
| .ts_data = &omap5430_mpu_temp_sensor_data, |
| .domain = "cpu", |
| .register_cooling = ti_thermal_register_cpu_cooling, |
| .unregister_cooling = ti_thermal_unregister_cpu_cooling, |
| .slope = OMAP_GRADIENT_SLOPE_5430_CPU, |
| .constant = OMAP_GRADIENT_CONST_5430_CPU, |
| .slope_pcb = OMAP_GRADIENT_SLOPE_W_PCB_5430_CPU, |
| .constant_pcb = OMAP_GRADIENT_CONST_W_PCB_5430_CPU, |
| }, |
| { |
| .registers = &omap5430_gpu_temp_sensor_registers, |
| .ts_data = &omap5430_gpu_temp_sensor_data, |
| .domain = "gpu", |
| .slope = OMAP_GRADIENT_SLOPE_5430_GPU, |
| .constant = OMAP_GRADIENT_CONST_5430_GPU, |
| .slope_pcb = OMAP_GRADIENT_SLOPE_W_PCB_5430_GPU, |
| .constant_pcb = OMAP_GRADIENT_CONST_W_PCB_5430_GPU, |
| }, |
| { |
| .registers = &omap5430_core_temp_sensor_registers, |
| .ts_data = &omap5430_core_temp_sensor_data, |
| .domain = "core", |
| }, |
| }, |
| .sensor_count = 3, |
| }; |