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949f5a50 EV |
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 "omap-bandgap.h" | |
20 | #include "omap-thermal.h" | |
21 | ||
22 | /* | |
23 | * omap5430 has one instance of thermal sensor for MPU | |
24 | * need to describe the individual bit fields | |
25 | */ | |
26 | static struct temp_sensor_registers | |
27 | omap5430_mpu_temp_sensor_registers = { | |
28 | .temp_sensor_ctrl = OMAP5430_TEMP_SENSOR_MPU_OFFSET, | |
29 | .bgap_tempsoff_mask = OMAP5430_BGAP_TEMPSOFF_MASK, | |
30 | .bgap_soc_mask = OMAP5430_BGAP_TEMP_SENSOR_SOC_MASK, | |
31 | .bgap_eocz_mask = OMAP5430_BGAP_TEMP_SENSOR_EOCZ_MASK, | |
32 | .bgap_dtemp_mask = OMAP5430_BGAP_TEMP_SENSOR_DTEMP_MASK, | |
33 | ||
34 | .bgap_mask_ctrl = OMAP5430_BGAP_CTRL_OFFSET, | |
35 | .mask_hot_mask = OMAP5430_MASK_HOT_MPU_MASK, | |
36 | .mask_cold_mask = OMAP5430_MASK_COLD_MPU_MASK, | |
37 | ||
38 | .bgap_mode_ctrl = OMAP5430_BGAP_COUNTER_MPU_OFFSET, | |
39 | .mode_ctrl_mask = OMAP5430_REPEAT_MODE_MASK, | |
40 | ||
41 | .bgap_counter = OMAP5430_BGAP_COUNTER_MPU_OFFSET, | |
42 | .counter_mask = OMAP5430_COUNTER_MASK, | |
43 | ||
44 | .bgap_threshold = OMAP5430_BGAP_THRESHOLD_MPU_OFFSET, | |
45 | .threshold_thot_mask = OMAP5430_T_HOT_MASK, | |
46 | .threshold_tcold_mask = OMAP5430_T_COLD_MASK, | |
47 | ||
48 | .tshut_threshold = OMAP5430_BGAP_TSHUT_MPU_OFFSET, | |
49 | .tshut_hot_mask = OMAP5430_TSHUT_HOT_MASK, | |
50 | .tshut_cold_mask = OMAP5430_TSHUT_COLD_MASK, | |
51 | ||
52 | .bgap_status = OMAP5430_BGAP_STATUS_OFFSET, | |
53 | .status_clean_stop_mask = 0x0, | |
54 | .status_bgap_alert_mask = OMAP5430_BGAP_ALERT_MASK, | |
55 | .status_hot_mask = OMAP5430_HOT_MPU_FLAG_MASK, | |
56 | .status_cold_mask = OMAP5430_COLD_MPU_FLAG_MASK, | |
57 | ||
58 | .bgap_efuse = OMAP5430_FUSE_OPP_BGAP_MPU, | |
59 | }; | |
60 | ||
61 | /* | |
62 | * omap5430 has one instance of thermal sensor for GPU | |
63 | * need to describe the individual bit fields | |
64 | */ | |
65 | static struct temp_sensor_registers | |
66 | omap5430_gpu_temp_sensor_registers = { | |
67 | .temp_sensor_ctrl = OMAP5430_TEMP_SENSOR_GPU_OFFSET, | |
68 | .bgap_tempsoff_mask = OMAP5430_BGAP_TEMPSOFF_MASK, | |
69 | .bgap_soc_mask = OMAP5430_BGAP_TEMP_SENSOR_SOC_MASK, | |
70 | .bgap_eocz_mask = OMAP5430_BGAP_TEMP_SENSOR_EOCZ_MASK, | |
71 | .bgap_dtemp_mask = OMAP5430_BGAP_TEMP_SENSOR_DTEMP_MASK, | |
72 | ||
73 | .bgap_mask_ctrl = OMAP5430_BGAP_CTRL_OFFSET, | |
74 | .mask_hot_mask = OMAP5430_MASK_HOT_MM_MASK, | |
75 | .mask_cold_mask = OMAP5430_MASK_COLD_MM_MASK, | |
76 | ||
77 | .bgap_mode_ctrl = OMAP5430_BGAP_COUNTER_GPU_OFFSET, | |
78 | .mode_ctrl_mask = OMAP5430_REPEAT_MODE_MASK, | |
79 | ||
80 | .bgap_counter = OMAP5430_BGAP_COUNTER_GPU_OFFSET, | |
81 | .counter_mask = OMAP5430_COUNTER_MASK, | |
82 | ||
83 | .bgap_threshold = OMAP5430_BGAP_THRESHOLD_GPU_OFFSET, | |
84 | .threshold_thot_mask = OMAP5430_T_HOT_MASK, | |
85 | .threshold_tcold_mask = OMAP5430_T_COLD_MASK, | |
86 | ||
87 | .tshut_threshold = OMAP5430_BGAP_TSHUT_GPU_OFFSET, | |
88 | .tshut_hot_mask = OMAP5430_TSHUT_HOT_MASK, | |
89 | .tshut_cold_mask = OMAP5430_TSHUT_COLD_MASK, | |
90 | ||
91 | .bgap_status = OMAP5430_BGAP_STATUS_OFFSET, | |
92 | .status_clean_stop_mask = 0x0, | |
93 | .status_bgap_alert_mask = OMAP5430_BGAP_ALERT_MASK, | |
94 | .status_hot_mask = OMAP5430_HOT_MM_FLAG_MASK, | |
95 | .status_cold_mask = OMAP5430_COLD_MM_FLAG_MASK, | |
96 | ||
97 | .bgap_efuse = OMAP5430_FUSE_OPP_BGAP_GPU, | |
98 | }; | |
99 | ||
100 | /* | |
101 | * omap5430 has one instance of thermal sensor for CORE | |
102 | * need to describe the individual bit fields | |
103 | */ | |
104 | static struct temp_sensor_registers | |
105 | omap5430_core_temp_sensor_registers = { | |
106 | .temp_sensor_ctrl = OMAP5430_TEMP_SENSOR_CORE_OFFSET, | |
107 | .bgap_tempsoff_mask = OMAP5430_BGAP_TEMPSOFF_MASK, | |
108 | .bgap_soc_mask = OMAP5430_BGAP_TEMP_SENSOR_SOC_MASK, | |
109 | .bgap_eocz_mask = OMAP5430_BGAP_TEMP_SENSOR_EOCZ_MASK, | |
110 | .bgap_dtemp_mask = OMAP5430_BGAP_TEMP_SENSOR_DTEMP_MASK, | |
111 | ||
112 | .bgap_mask_ctrl = OMAP5430_BGAP_CTRL_OFFSET, | |
113 | .mask_hot_mask = OMAP5430_MASK_HOT_CORE_MASK, | |
114 | .mask_cold_mask = OMAP5430_MASK_COLD_CORE_MASK, | |
115 | ||
116 | .bgap_mode_ctrl = OMAP5430_BGAP_COUNTER_CORE_OFFSET, | |
117 | .mode_ctrl_mask = OMAP5430_REPEAT_MODE_MASK, | |
118 | ||
119 | .bgap_counter = OMAP5430_BGAP_COUNTER_CORE_OFFSET, | |
120 | .counter_mask = OMAP5430_COUNTER_MASK, | |
121 | ||
122 | .bgap_threshold = OMAP5430_BGAP_THRESHOLD_CORE_OFFSET, | |
123 | .threshold_thot_mask = OMAP5430_T_HOT_MASK, | |
124 | .threshold_tcold_mask = OMAP5430_T_COLD_MASK, | |
125 | ||
126 | .tshut_threshold = OMAP5430_BGAP_TSHUT_CORE_OFFSET, | |
127 | .tshut_hot_mask = OMAP5430_TSHUT_HOT_MASK, | |
128 | .tshut_cold_mask = OMAP5430_TSHUT_COLD_MASK, | |
129 | ||
130 | .bgap_status = OMAP5430_BGAP_STATUS_OFFSET, | |
131 | .status_clean_stop_mask = 0x0, | |
132 | .status_bgap_alert_mask = OMAP5430_BGAP_ALERT_MASK, | |
133 | .status_hot_mask = OMAP5430_HOT_CORE_FLAG_MASK, | |
134 | .status_cold_mask = OMAP5430_COLD_CORE_FLAG_MASK, | |
135 | ||
136 | .bgap_efuse = OMAP5430_FUSE_OPP_BGAP_CORE, | |
137 | }; | |
138 | ||
139 | /* Thresholds and limits for OMAP5430 MPU temperature sensor */ | |
140 | static struct temp_sensor_data omap5430_mpu_temp_sensor_data = { | |
141 | .tshut_hot = OMAP5430_MPU_TSHUT_HOT, | |
142 | .tshut_cold = OMAP5430_MPU_TSHUT_COLD, | |
143 | .t_hot = OMAP5430_MPU_T_HOT, | |
144 | .t_cold = OMAP5430_MPU_T_COLD, | |
145 | .min_freq = OMAP5430_MPU_MIN_FREQ, | |
146 | .max_freq = OMAP5430_MPU_MAX_FREQ, | |
147 | .max_temp = OMAP5430_MPU_MAX_TEMP, | |
148 | .min_temp = OMAP5430_MPU_MIN_TEMP, | |
149 | .hyst_val = OMAP5430_MPU_HYST_VAL, | |
150 | .adc_start_val = OMAP5430_ADC_START_VALUE, | |
151 | .adc_end_val = OMAP5430_ADC_END_VALUE, | |
152 | .update_int1 = 1000, | |
153 | .update_int2 = 2000, | |
154 | }; | |
155 | ||
156 | /* Thresholds and limits for OMAP5430 GPU temperature sensor */ | |
157 | static struct temp_sensor_data omap5430_gpu_temp_sensor_data = { | |
158 | .tshut_hot = OMAP5430_GPU_TSHUT_HOT, | |
159 | .tshut_cold = OMAP5430_GPU_TSHUT_COLD, | |
160 | .t_hot = OMAP5430_GPU_T_HOT, | |
161 | .t_cold = OMAP5430_GPU_T_COLD, | |
162 | .min_freq = OMAP5430_GPU_MIN_FREQ, | |
163 | .max_freq = OMAP5430_GPU_MAX_FREQ, | |
164 | .max_temp = OMAP5430_GPU_MAX_TEMP, | |
165 | .min_temp = OMAP5430_GPU_MIN_TEMP, | |
166 | .hyst_val = OMAP5430_GPU_HYST_VAL, | |
167 | .adc_start_val = OMAP5430_ADC_START_VALUE, | |
168 | .adc_end_val = OMAP5430_ADC_END_VALUE, | |
169 | .update_int1 = 1000, | |
170 | .update_int2 = 2000, | |
171 | }; | |
172 | ||
173 | /* Thresholds and limits for OMAP5430 CORE temperature sensor */ | |
174 | static struct temp_sensor_data omap5430_core_temp_sensor_data = { | |
175 | .tshut_hot = OMAP5430_CORE_TSHUT_HOT, | |
176 | .tshut_cold = OMAP5430_CORE_TSHUT_COLD, | |
177 | .t_hot = OMAP5430_CORE_T_HOT, | |
178 | .t_cold = OMAP5430_CORE_T_COLD, | |
179 | .min_freq = OMAP5430_CORE_MIN_FREQ, | |
180 | .max_freq = OMAP5430_CORE_MAX_FREQ, | |
181 | .max_temp = OMAP5430_CORE_MAX_TEMP, | |
182 | .min_temp = OMAP5430_CORE_MIN_TEMP, | |
183 | .hyst_val = OMAP5430_CORE_HYST_VAL, | |
184 | .adc_start_val = OMAP5430_ADC_START_VALUE, | |
185 | .adc_end_val = OMAP5430_ADC_END_VALUE, | |
186 | .update_int1 = 1000, | |
187 | .update_int2 = 2000, | |
188 | }; | |
189 | ||
190 | static const int | |
191 | omap5430_adc_to_temp[OMAP5430_ADC_END_VALUE - OMAP5430_ADC_START_VALUE + 1] = { | |
192 | -40000, -40000, -40000, -40000, -39800, -39400, -39000, -38600, | |
193 | -38200, -37800, -37300, -36800, | |
194 | -36400, -36000, -35600, -35200, -34800, -34300, -33800, -33400, -33000, | |
195 | -32600, | |
196 | -32200, -31800, -31300, -30800, -30400, -30000, -29600, -29200, -28700, | |
197 | -28200, -27800, -27400, -27000, -26600, -26200, -25700, -25200, -24800, | |
198 | -24400, -24000, -23600, -23200, -22700, -22200, -21800, -21400, -21000, | |
199 | -20600, -20200, -19700, -19200, -9300, -18400, -18000, -17600, -17200, | |
200 | -16700, -16200, -15800, -15400, -15000, -14600, -14200, -13700, -13200, | |
201 | -12800, -12400, -12000, -11600, -11200, -10700, -10200, -9800, -9400, | |
202 | -9000, | |
203 | -8600, -8200, -7700, -7200, -6800, -6400, -6000, -5600, -5200, -4800, | |
204 | -4300, | |
205 | -3800, -3400, -3000, -2600, -2200, -1800, -1300, -800, -400, 0, 400, | |
206 | 800, | |
207 | 1200, 1600, 2100, 2600, 3000, 3400, 3800, 4200, 4600, 5100, 5600, 6000, | |
208 | 6400, 6800, 7200, 7600, 8000, 8500, 9000, 9400, 9800, 10200, 10800, | |
209 | 11100, | |
210 | 11400, 11900, 12400, 12800, 13200, 13600, 14000, 14400, 14800, 15300, | |
211 | 15800, | |
212 | 16200, 16600, 17000, 17400, 17800, 18200, 18700, 19200, 19600, 20000, | |
213 | 20400, | |
214 | 20800, 21200, 21600, 22100, 22600, 23000, 23400, 23800, 24200, 24600, | |
215 | 25000, | |
216 | 25400, 25900, 26400, 26800, 27200, 27600, 28000, 28400, 28800, 29300, | |
217 | 29800, | |
218 | 30200, 30600, 31000, 31400, 31800, 32200, 32600, 33100, 33600, 34000, | |
219 | 34400, | |
220 | 34800, 35200, 35600, 36000, 36400, 36800, 37300, 37800, 38200, 38600, | |
221 | 39000, | |
222 | 39400, 39800, 40200, 40600, 41100, 41600, 42000, 42400, 42800, 43200, | |
223 | 43600, | |
224 | 44000, 44400, 44800, 45300, 45800, 46200, 46600, 47000, 47400, 47800, | |
225 | 48200, | |
226 | 48600, 49000, 49500, 50000, 50400, 50800, 51200, 51600, 52000, 52400, | |
227 | 52800, | |
228 | 53200, 53700, 54200, 54600, 55000, 55400, 55800, 56200, 56600, 57000, | |
229 | 57400, | |
230 | 57800, 58200, 58700, 59200, 59600, 60000, 60400, 60800, 61200, 61600, | |
231 | 62000, | |
232 | 62400, 62800, 63300, 63800, 64200, 64600, 65000, 65400, 65800, 66200, | |
233 | 66600, | |
234 | 67000, 67400, 67800, 68200, 68700, 69200, 69600, 70000, 70400, 70800, | |
235 | 71200, | |
236 | 71600, 72000, 72400, 72800, 73200, 73600, 74100, 74600, 75000, 75400, | |
237 | 75800, | |
238 | 76200, 76600, 77000, 77400, 77800, 78200, 78600, 79000, 79400, 79800, | |
239 | 80300, | |
240 | 80800, 81200, 81600, 82000, 82400, 82800, 83200, 83600, 84000, 84400, | |
241 | 84800, | |
242 | 85200, 85600, 86000, 86400, 86800, 87300, 87800, 88200, 88600, 89000, | |
243 | 89400, | |
244 | 89800, 90200, 90600, 91000, 91400, 91800, 92200, 92600, 93000, 93400, | |
245 | 93800, | |
246 | 94200, 94600, 95000, 95500, 96000, 96400, 96800, 97200, 97600, 98000, | |
247 | 98400, | |
248 | 98800, 99200, 99600, 100000, 100400, 100800, 101200, 101600, 102000, | |
249 | 102400, | |
250 | 102800, 103200, 103600, 104000, 104400, 104800, 105200, 105600, 106100, | |
251 | 106600, 107000, 107400, 107800, 108200, 108600, 109000, 109400, 109800, | |
252 | 110200, 110600, 111000, 111400, 111800, 112200, 112600, 113000, 113400, | |
253 | 113800, 114200, 114600, 115000, 115400, 115800, 116200, 116600, 117000, | |
254 | 117400, 117800, 118200, 118600, 119000, 119400, 119800, 120200, 120600, | |
255 | 121000, 121400, 121800, 122200, 122600, 123000, 123400, 123800, 124200, | |
256 | 124600, 124900, 125000, 125000, 125000, 125000, | |
257 | }; | |
258 | ||
259 | const struct omap_bandgap_data omap5430_data = { | |
260 | .features = OMAP_BANDGAP_FEATURE_TSHUT_CONFIG | | |
261 | OMAP_BANDGAP_FEATURE_TALERT | | |
262 | OMAP_BANDGAP_FEATURE_MODE_CONFIG | | |
263 | OMAP_BANDGAP_FEATURE_COUNTER, | |
264 | .fclock_name = "ts_clk_div_ck", | |
265 | .div_ck_name = "ts_clk_div_ck", | |
266 | .conv_table = omap5430_adc_to_temp, | |
267 | .expose_sensor = omap_thermal_expose_sensor, | |
268 | .remove_sensor = omap_thermal_remove_sensor, | |
269 | .sensors = { | |
270 | { | |
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271 | .registers = &omap5430_mpu_temp_sensor_registers, |
272 | .ts_data = &omap5430_mpu_temp_sensor_data, | |
273 | .domain = "cpu", | |
274 | .register_cooling = omap_thermal_register_cpu_cooling, | |
275 | .unregister_cooling = omap_thermal_unregister_cpu_cooling, | |
276 | .slope = OMAP_GRADIENT_SLOPE_5430_CPU, | |
277 | .constant = OMAP_GRADIENT_CONST_5430_CPU, | |
278 | .slope_pcb = OMAP_GRADIENT_SLOPE_W_PCB_5430_CPU, | |
279 | .constant_pcb = OMAP_GRADIENT_CONST_W_PCB_5430_CPU, | |
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280 | }, |
281 | { | |
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282 | .registers = &omap5430_gpu_temp_sensor_registers, |
283 | .ts_data = &omap5430_gpu_temp_sensor_data, | |
284 | .domain = "gpu", | |
285 | .slope = OMAP_GRADIENT_SLOPE_5430_GPU, | |
286 | .constant = OMAP_GRADIENT_CONST_5430_GPU, | |
287 | .slope_pcb = OMAP_GRADIENT_SLOPE_W_PCB_5430_GPU, | |
288 | .constant_pcb = OMAP_GRADIENT_CONST_W_PCB_5430_GPU, | |
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289 | }, |
290 | { | |
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291 | .registers = &omap5430_core_temp_sensor_registers, |
292 | .ts_data = &omap5430_core_temp_sensor_data, | |
293 | .domain = "core", | |
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294 | }, |
295 | }, | |
296 | .sensor_count = 3, | |
297 | }; |