1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | /* |
3 | * OMAP5 thermal driver. |
4 | * |
5 | * Copyright (C) 2011-2012 Texas Instruments Inc. |
6 | * Contact: |
7 | * Eduardo Valentin <eduardo.valentin@ti.com> |
8 | */ |
9 | |
10 | #include "ti-thermal.h" |
11 | #include "ti-bandgap.h" |
12 | #include "omap5xxx-bandgap.h" |
13 | |
14 | /* |
15 | * OMAP5430 has three instances of thermal sensor for MPU, GPU & CORE, |
16 | * need to describe the individual registers and bit fields. |
17 | */ |
18 | |
19 | /* |
20 | * OMAP5430 MPU thermal sensor register offset and bit-fields |
21 | */ |
22 | static struct temp_sensor_registers |
23 | omap5430_mpu_temp_sensor_registers = { |
24 | .temp_sensor_ctrl = OMAP5430_TEMP_SENSOR_MPU_OFFSET, |
25 | .bgap_tempsoff_mask = OMAP5430_BGAP_TEMPSOFF_MASK, |
26 | .bgap_eocz_mask = OMAP5430_BGAP_TEMP_SENSOR_EOCZ_MASK, |
27 | .bgap_dtemp_mask = OMAP5430_BGAP_TEMP_SENSOR_DTEMP_MASK, |
28 | |
29 | .bgap_mask_ctrl = OMAP5430_BGAP_CTRL_OFFSET, |
30 | .mask_hot_mask = OMAP5430_MASK_HOT_MPU_MASK, |
31 | .mask_cold_mask = OMAP5430_MASK_COLD_MPU_MASK, |
32 | .mask_counter_delay_mask = OMAP5430_MASK_COUNTER_DELAY_MASK, |
33 | .mask_freeze_mask = OMAP5430_MASK_FREEZE_MPU_MASK, |
34 | |
35 | .bgap_counter = OMAP5430_BGAP_CTRL_OFFSET, |
36 | .counter_mask = OMAP5430_COUNTER_MASK, |
37 | |
38 | .bgap_threshold = OMAP5430_BGAP_THRESHOLD_MPU_OFFSET, |
39 | .threshold_thot_mask = OMAP5430_T_HOT_MASK, |
40 | .threshold_tcold_mask = OMAP5430_T_COLD_MASK, |
41 | |
42 | .tshut_threshold = OMAP5430_BGAP_TSHUT_MPU_OFFSET, |
43 | .tshut_hot_mask = OMAP5430_TSHUT_HOT_MASK, |
44 | .tshut_cold_mask = OMAP5430_TSHUT_COLD_MASK, |
45 | |
46 | .bgap_status = OMAP5430_BGAP_STATUS_OFFSET, |
47 | .status_hot_mask = OMAP5430_HOT_MPU_FLAG_MASK, |
48 | .status_cold_mask = OMAP5430_COLD_MPU_FLAG_MASK, |
49 | |
50 | .ctrl_dtemp_1 = OMAP5430_BGAP_DTEMP_MPU_1_OFFSET, |
51 | .ctrl_dtemp_2 = OMAP5430_BGAP_DTEMP_MPU_2_OFFSET, |
52 | .bgap_efuse = OMAP5430_FUSE_OPP_BGAP_MPU, |
53 | }; |
54 | |
55 | /* |
56 | * OMAP5430 GPU thermal sensor register offset and bit-fields |
57 | */ |
58 | static struct temp_sensor_registers |
59 | omap5430_gpu_temp_sensor_registers = { |
60 | .temp_sensor_ctrl = OMAP5430_TEMP_SENSOR_GPU_OFFSET, |
61 | .bgap_tempsoff_mask = OMAP5430_BGAP_TEMPSOFF_MASK, |
62 | .bgap_eocz_mask = OMAP5430_BGAP_TEMP_SENSOR_EOCZ_MASK, |
63 | .bgap_dtemp_mask = OMAP5430_BGAP_TEMP_SENSOR_DTEMP_MASK, |
64 | |
65 | .bgap_mask_ctrl = OMAP5430_BGAP_CTRL_OFFSET, |
66 | .mask_hot_mask = OMAP5430_MASK_HOT_GPU_MASK, |
67 | .mask_cold_mask = OMAP5430_MASK_COLD_GPU_MASK, |
68 | .mask_counter_delay_mask = OMAP5430_MASK_COUNTER_DELAY_MASK, |
69 | .mask_freeze_mask = OMAP5430_MASK_FREEZE_GPU_MASK, |
70 | |
71 | .bgap_counter = OMAP5430_BGAP_CTRL_OFFSET, |
72 | .counter_mask = OMAP5430_COUNTER_MASK, |
73 | |
74 | .bgap_threshold = OMAP5430_BGAP_THRESHOLD_GPU_OFFSET, |
75 | .threshold_thot_mask = OMAP5430_T_HOT_MASK, |
76 | .threshold_tcold_mask = OMAP5430_T_COLD_MASK, |
77 | |
78 | .tshut_threshold = OMAP5430_BGAP_TSHUT_GPU_OFFSET, |
79 | .tshut_hot_mask = OMAP5430_TSHUT_HOT_MASK, |
80 | .tshut_cold_mask = OMAP5430_TSHUT_COLD_MASK, |
81 | |
82 | .bgap_status = OMAP5430_BGAP_STATUS_OFFSET, |
83 | .status_hot_mask = OMAP5430_HOT_GPU_FLAG_MASK, |
84 | .status_cold_mask = OMAP5430_COLD_GPU_FLAG_MASK, |
85 | |
86 | .ctrl_dtemp_1 = OMAP5430_BGAP_DTEMP_GPU_1_OFFSET, |
87 | .ctrl_dtemp_2 = OMAP5430_BGAP_DTEMP_GPU_2_OFFSET, |
88 | |
89 | .bgap_efuse = OMAP5430_FUSE_OPP_BGAP_GPU, |
90 | }; |
91 | |
92 | /* |
93 | * OMAP5430 CORE thermal sensor register offset and bit-fields |
94 | */ |
95 | static struct temp_sensor_registers |
96 | omap5430_core_temp_sensor_registers = { |
97 | .temp_sensor_ctrl = OMAP5430_TEMP_SENSOR_CORE_OFFSET, |
98 | .bgap_tempsoff_mask = OMAP5430_BGAP_TEMPSOFF_MASK, |
99 | .bgap_eocz_mask = OMAP5430_BGAP_TEMP_SENSOR_EOCZ_MASK, |
100 | .bgap_dtemp_mask = OMAP5430_BGAP_TEMP_SENSOR_DTEMP_MASK, |
101 | |
102 | .bgap_mask_ctrl = OMAP5430_BGAP_CTRL_OFFSET, |
103 | .mask_hot_mask = OMAP5430_MASK_HOT_CORE_MASK, |
104 | .mask_cold_mask = OMAP5430_MASK_COLD_CORE_MASK, |
105 | .mask_counter_delay_mask = OMAP5430_MASK_COUNTER_DELAY_MASK, |
106 | .mask_freeze_mask = OMAP5430_MASK_FREEZE_CORE_MASK, |
107 | |
108 | .bgap_counter = OMAP5430_BGAP_CTRL_OFFSET, |
109 | .counter_mask = OMAP5430_COUNTER_MASK, |
110 | |
111 | .bgap_threshold = OMAP5430_BGAP_THRESHOLD_CORE_OFFSET, |
112 | .threshold_thot_mask = OMAP5430_T_HOT_MASK, |
113 | .threshold_tcold_mask = OMAP5430_T_COLD_MASK, |
114 | |
115 | .tshut_threshold = OMAP5430_BGAP_TSHUT_CORE_OFFSET, |
116 | .tshut_hot_mask = OMAP5430_TSHUT_HOT_MASK, |
117 | .tshut_cold_mask = OMAP5430_TSHUT_COLD_MASK, |
118 | |
119 | .bgap_status = OMAP5430_BGAP_STATUS_OFFSET, |
120 | .status_hot_mask = OMAP5430_HOT_CORE_FLAG_MASK, |
121 | .status_cold_mask = OMAP5430_COLD_CORE_FLAG_MASK, |
122 | |
123 | .ctrl_dtemp_1 = OMAP5430_BGAP_DTEMP_CORE_1_OFFSET, |
124 | .ctrl_dtemp_2 = OMAP5430_BGAP_DTEMP_CORE_2_OFFSET, |
125 | |
126 | .bgap_efuse = OMAP5430_FUSE_OPP_BGAP_CORE, |
127 | }; |
128 | |
129 | /* Thresholds and limits for OMAP5430 MPU temperature sensor */ |
130 | static struct temp_sensor_data omap5430_mpu_temp_sensor_data = { |
131 | .tshut_hot = OMAP5430_MPU_TSHUT_HOT, |
132 | .tshut_cold = OMAP5430_MPU_TSHUT_COLD, |
133 | .t_hot = OMAP5430_MPU_T_HOT, |
134 | .t_cold = OMAP5430_MPU_T_COLD, |
135 | .min_freq = OMAP5430_MPU_MIN_FREQ, |
136 | .max_freq = OMAP5430_MPU_MAX_FREQ, |
137 | }; |
138 | |
139 | /* Thresholds and limits for OMAP5430 GPU temperature sensor */ |
140 | static struct temp_sensor_data omap5430_gpu_temp_sensor_data = { |
141 | .tshut_hot = OMAP5430_GPU_TSHUT_HOT, |
142 | .tshut_cold = OMAP5430_GPU_TSHUT_COLD, |
143 | .t_hot = OMAP5430_GPU_T_HOT, |
144 | .t_cold = OMAP5430_GPU_T_COLD, |
145 | .min_freq = OMAP5430_GPU_MIN_FREQ, |
146 | .max_freq = OMAP5430_GPU_MAX_FREQ, |
147 | }; |
148 | |
149 | /* Thresholds and limits for OMAP5430 CORE temperature sensor */ |
150 | static struct temp_sensor_data omap5430_core_temp_sensor_data = { |
151 | .tshut_hot = OMAP5430_CORE_TSHUT_HOT, |
152 | .tshut_cold = OMAP5430_CORE_TSHUT_COLD, |
153 | .t_hot = OMAP5430_CORE_T_HOT, |
154 | .t_cold = OMAP5430_CORE_T_COLD, |
155 | .min_freq = OMAP5430_CORE_MIN_FREQ, |
156 | .max_freq = OMAP5430_CORE_MAX_FREQ, |
157 | }; |
158 | |
159 | /* |
160 | * OMAP54xx ES2.0 : Temperature values in milli degree celsius |
161 | * ADC code values from 540 to 945 |
162 | */ |
163 | static int |
164 | omap5430_adc_to_temp[ |
165 | OMAP5430_ADC_END_VALUE - OMAP5430_ADC_START_VALUE + 1] = { |
166 | /* Index 540 - 549 */ |
167 | -40000, -40000, -40000, -40000, -39800, -39400, -39000, -38600, -38200, |
168 | -37800, |
169 | /* Index 550 - 559 */ |
170 | -37400, -37000, -36600, -36200, -35800, -35300, -34700, -34200, -33800, |
171 | -33400, |
172 | /* Index 560 - 569 */ |
173 | -33000, -32600, -32200, -31800, -31400, -31000, -30600, -30200, -29800, |
174 | -29400, |
175 | /* Index 570 - 579 */ |
176 | -29000, -28600, -28200, -27700, -27100, -26600, -26200, -25800, -25400, |
177 | -25000, |
178 | /* Index 580 - 589 */ |
179 | -24600, -24200, -23800, -23400, -23000, -22600, -22200, -21600, -21400, |
180 | -21000, |
181 | /* Index 590 - 599 */ |
182 | -20500, -19900, -19400, -19000, -18600, -18200, -17800, -17400, -17000, |
183 | -16600, |
184 | /* Index 600 - 609 */ |
185 | -16200, -15800, -15400, -15000, -14600, -14200, -13800, -13400, -13000, |
186 | -12500, |
187 | /* Index 610 - 619 */ |
188 | -11900, -11400, -11000, -10600, -10200, -9800, -9400, -9000, -8600, |
189 | -8200, |
190 | /* Index 620 - 629 */ |
191 | -7800, -7400, -7000, -6600, -6200, -5800, -5400, -5000, -4500, -3900, |
192 | /* Index 630 - 639 */ |
193 | -3400, -3000, -2600, -2200, -1800, -1400, -1000, -600, -200, 200, |
194 | /* Index 640 - 649 */ |
195 | 600, 1000, 1400, 1800, 2200, 2600, 3000, 3400, 3900, 4500, |
196 | /* Index 650 - 659 */ |
197 | 5000, 5400, 5800, 6200, 6600, 7000, 7400, 7800, 8200, 8600, |
198 | /* Index 660 - 669 */ |
199 | 9000, 9400, 9800, 10200, 10600, 11000, 11400, 11800, 12200, 12700, |
200 | /* Index 670 - 679 */ |
201 | 13300, 13800, 14200, 14600, 15000, 15400, 15800, 16200, 16600, 17000, |
202 | /* Index 680 - 689 */ |
203 | 17400, 17800, 18200, 18600, 19000, 19400, 19800, 20200, 20600, 21100, |
204 | /* Index 690 - 699 */ |
205 | 21400, 21900, 22500, 23000, 23400, 23800, 24200, 24600, 25000, 25400, |
206 | /* Index 700 - 709 */ |
207 | 25800, 26200, 26600, 27000, 27400, 27800, 28200, 28600, 29000, 29400, |
208 | /* Index 710 - 719 */ |
209 | 29800, 30200, 30600, 31000, 31400, 31900, 32500, 33000, 33400, 33800, |
210 | /* Index 720 - 729 */ |
211 | 34200, 34600, 35000, 35400, 35800, 36200, 36600, 37000, 37400, 37800, |
212 | /* Index 730 - 739 */ |
213 | 38200, 38600, 39000, 39400, 39800, 40200, 40600, 41000, 41400, 41800, |
214 | /* Index 740 - 749 */ |
215 | 42200, 42600, 43100, 43700, 44200, 44600, 45000, 45400, 45800, 46200, |
216 | /* Index 750 - 759 */ |
217 | 46600, 47000, 47400, 47800, 48200, 48600, 49000, 49400, 49800, 50200, |
218 | /* Index 760 - 769 */ |
219 | 50600, 51000, 51400, 51800, 52200, 52600, 53000, 53400, 53800, 54200, |
220 | /* Index 770 - 779 */ |
221 | 54600, 55000, 55400, 55900, 56500, 57000, 57400, 57800, 58200, 58600, |
222 | /* Index 780 - 789 */ |
223 | 59000, 59400, 59800, 60200, 60600, 61000, 61400, 61800, 62200, 62600, |
224 | /* Index 790 - 799 */ |
225 | 63000, 63400, 63800, 64200, 64600, 65000, 65400, 65800, 66200, 66600, |
226 | /* Index 800 - 809 */ |
227 | 67000, 67400, 67800, 68200, 68600, 69000, 69400, 69800, 70200, 70600, |
228 | /* Index 810 - 819 */ |
229 | 71000, 71500, 72100, 72600, 73000, 73400, 73800, 74200, 74600, 75000, |
230 | /* Index 820 - 829 */ |
231 | 75400, 75800, 76200, 76600, 77000, 77400, 77800, 78200, 78600, 79000, |
232 | /* Index 830 - 839 */ |
233 | 79400, 79800, 80200, 80600, 81000, 81400, 81800, 82200, 82600, 83000, |
234 | /* Index 840 - 849 */ |
235 | 83400, 83800, 84200, 84600, 85000, 85400, 85800, 86200, 86600, 87000, |
236 | /* Index 850 - 859 */ |
237 | 87400, 87800, 88200, 88600, 89000, 89400, 89800, 90200, 90600, 91000, |
238 | /* Index 860 - 869 */ |
239 | 91400, 91800, 92200, 92600, 93000, 93400, 93800, 94200, 94600, 95000, |
240 | /* Index 870 - 879 */ |
241 | 95400, 95800, 96200, 96600, 97000, 97500, 98100, 98600, 99000, 99400, |
242 | /* Index 880 - 889 */ |
243 | 99800, 100200, 100600, 101000, 101400, 101800, 102200, 102600, 103000, |
244 | 103400, |
245 | /* Index 890 - 899 */ |
246 | 103800, 104200, 104600, 105000, 105400, 105800, 106200, 106600, 107000, |
247 | 107400, |
248 | /* Index 900 - 909 */ |
249 | 107800, 108200, 108600, 109000, 109400, 109800, 110200, 110600, 111000, |
250 | 111400, |
251 | /* Index 910 - 919 */ |
252 | 111800, 112200, 112600, 113000, 113400, 113800, 114200, 114600, 115000, |
253 | 115400, |
254 | /* Index 920 - 929 */ |
255 | 115800, 116200, 116600, 117000, 117400, 117800, 118200, 118600, 119000, |
256 | 119400, |
257 | /* Index 930 - 939 */ |
258 | 119800, 120200, 120600, 121000, 121400, 121800, 122400, 122600, 123000, |
259 | 123400, |
260 | /* Index 940 - 945 */ |
261 | 123800, 124200, 124600, 124900, 125000, 125000, |
262 | }; |
263 | |
264 | /* OMAP54xx ES2.0 data */ |
265 | const struct ti_bandgap_data omap5430_data = { |
266 | .features = TI_BANDGAP_FEATURE_TSHUT_CONFIG | |
267 | TI_BANDGAP_FEATURE_FREEZE_BIT | |
268 | TI_BANDGAP_FEATURE_TALERT | |
269 | TI_BANDGAP_FEATURE_COUNTER_DELAY | |
270 | TI_BANDGAP_FEATURE_HISTORY_BUFFER, |
271 | .fclock_name = "l3instr_ts_gclk_div" , |
272 | .div_ck_name = "l3instr_ts_gclk_div" , |
273 | .conv_table = omap5430_adc_to_temp, |
274 | .adc_start_val = OMAP5430_ADC_START_VALUE, |
275 | .adc_end_val = OMAP5430_ADC_END_VALUE, |
276 | .expose_sensor = ti_thermal_expose_sensor, |
277 | .remove_sensor = ti_thermal_remove_sensor, |
278 | .report_temperature = ti_thermal_report_sensor_temperature, |
279 | .sensors = { |
280 | { |
281 | .registers = &omap5430_mpu_temp_sensor_registers, |
282 | .ts_data = &omap5430_mpu_temp_sensor_data, |
283 | .domain = "cpu" , |
284 | .register_cooling = ti_thermal_register_cpu_cooling, |
285 | .unregister_cooling = ti_thermal_unregister_cpu_cooling, |
286 | .slope_pcb = OMAP_GRADIENT_SLOPE_W_PCB_5430_CPU, |
287 | .constant_pcb = OMAP_GRADIENT_CONST_W_PCB_5430_CPU, |
288 | }, |
289 | { |
290 | .registers = &omap5430_gpu_temp_sensor_registers, |
291 | .ts_data = &omap5430_gpu_temp_sensor_data, |
292 | .domain = "gpu" , |
293 | .slope_pcb = OMAP_GRADIENT_SLOPE_W_PCB_5430_GPU, |
294 | .constant_pcb = OMAP_GRADIENT_CONST_W_PCB_5430_GPU, |
295 | }, |
296 | { |
297 | .registers = &omap5430_core_temp_sensor_registers, |
298 | .ts_data = &omap5430_core_temp_sensor_data, |
299 | .domain = "core" , |
300 | }, |
301 | }, |
302 | .sensor_count = 3, |
303 | }; |
304 | |