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1a31270e EV |
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 "omap-thermal.h" | |
20 | #include "omap-bandgap.h" | |
21 | ||
22 | /* | |
23 | * OMAP4430 has one instance of thermal sensor for MPU | |
24 | * need to describe the individual bit fields | |
25 | */ | |
26 | static struct temp_sensor_registers | |
27 | omap4430_mpu_temp_sensor_registers = { | |
28 | .temp_sensor_ctrl = OMAP4430_TEMP_SENSOR_CTRL_OFFSET, | |
29 | .bgap_tempsoff_mask = OMAP4430_BGAP_TEMPSOFF_MASK, | |
30 | .bgap_soc_mask = OMAP4430_BGAP_TEMP_SENSOR_SOC_MASK, | |
31 | .bgap_eocz_mask = OMAP4430_BGAP_TEMP_SENSOR_EOCZ_MASK, | |
32 | .bgap_dtemp_mask = OMAP4430_BGAP_TEMP_SENSOR_DTEMP_MASK, | |
33 | ||
34 | .bgap_mode_ctrl = OMAP4430_TEMP_SENSOR_CTRL_OFFSET, | |
35 | .mode_ctrl_mask = OMAP4430_SINGLE_MODE_MASK, | |
36 | ||
37 | .bgap_efuse = OMAP4430_FUSE_OPP_BGAP, | |
38 | }; | |
39 | ||
40 | /* Thresholds and limits for OMAP4430 MPU temperature sensor */ | |
41 | static struct temp_sensor_data omap4430_mpu_temp_sensor_data = { | |
42 | .min_freq = OMAP4430_MIN_FREQ, | |
43 | .max_freq = OMAP4430_MAX_FREQ, | |
44 | .max_temp = OMAP4430_MAX_TEMP, | |
45 | .min_temp = OMAP4430_MIN_TEMP, | |
46 | .hyst_val = OMAP4430_HYST_VAL, | |
47 | .adc_start_val = OMAP4430_ADC_START_VALUE, | |
48 | .adc_end_val = OMAP4430_ADC_END_VALUE, | |
49 | }; | |
50 | ||
51 | /* | |
52 | * Temperature values in milli degree celsius | |
53 | * ADC code values from 530 to 923 | |
54 | */ | |
55 | static const int | |
56 | omap4430_adc_to_temp[OMAP4430_ADC_END_VALUE - OMAP4430_ADC_START_VALUE + 1] = { | |
57 | -38000, -35000, -34000, -32000, -30000, -28000, -26000, -24000, -22000, | |
58 | -20000, -18000, -17000, -15000, -13000, -12000, -10000, -8000, -6000, | |
59 | -5000, -3000, -1000, 0, 2000, 3000, 5000, 6000, 8000, 10000, 12000, | |
60 | 13000, 15000, 17000, 19000, 21000, 23000, 25000, 27000, 28000, 30000, | |
61 | 32000, 33000, 35000, 37000, 38000, 40000, 42000, 43000, 45000, 47000, | |
62 | 48000, 50000, 52000, 53000, 55000, 57000, 58000, 60000, 62000, 64000, | |
63 | 66000, 68000, 70000, 71000, 73000, 75000, 77000, 78000, 80000, 82000, | |
64 | 83000, 85000, 87000, 88000, 90000, 92000, 93000, 95000, 97000, 98000, | |
65 | 100000, 102000, 103000, 105000, 107000, 109000, 111000, 113000, 115000, | |
66 | 117000, 118000, 120000, 122000, 123000, | |
67 | }; | |
68 | ||
69 | /* OMAP4430 data */ | |
70 | const struct omap_bandgap_data omap4430_data = { | |
71 | .features = OMAP_BANDGAP_FEATURE_MODE_CONFIG | | |
72 | OMAP_BANDGAP_FEATURE_POWER_SWITCH, | |
73 | .fclock_name = "bandgap_fclk", | |
74 | .div_ck_name = "bandgap_fclk", | |
75 | .conv_table = omap4430_adc_to_temp, | |
76 | .expose_sensor = omap_thermal_expose_sensor, | |
77 | .remove_sensor = omap_thermal_remove_sensor, | |
78 | .sensors = { | |
79 | { | |
cff860f5 EV |
80 | .registers = &omap4430_mpu_temp_sensor_registers, |
81 | .ts_data = &omap4430_mpu_temp_sensor_data, | |
82 | .domain = "cpu", | |
83 | .slope = 0, | |
84 | .constant = 20000, | |
85 | .slope_pcb = 0, | |
86 | .constant_pcb = 20000, | |
87 | .register_cooling = omap_thermal_register_cpu_cooling, | |
88 | .unregister_cooling = omap_thermal_unregister_cpu_cooling, | |
1a31270e EV |
89 | }, |
90 | }, | |
91 | .sensor_count = 1, | |
92 | }; | |
93 | /* | |
94 | * OMAP4460 has one instance of thermal sensor for MPU | |
95 | * need to describe the individual bit fields | |
96 | */ | |
97 | static struct temp_sensor_registers | |
98 | omap4460_mpu_temp_sensor_registers = { | |
99 | .temp_sensor_ctrl = OMAP4460_TEMP_SENSOR_CTRL_OFFSET, | |
100 | .bgap_tempsoff_mask = OMAP4460_BGAP_TEMPSOFF_MASK, | |
101 | .bgap_soc_mask = OMAP4460_BGAP_TEMP_SENSOR_SOC_MASK, | |
102 | .bgap_eocz_mask = OMAP4460_BGAP_TEMP_SENSOR_EOCZ_MASK, | |
103 | .bgap_dtemp_mask = OMAP4460_BGAP_TEMP_SENSOR_DTEMP_MASK, | |
104 | ||
105 | .bgap_mask_ctrl = OMAP4460_BGAP_CTRL_OFFSET, | |
106 | .mask_hot_mask = OMAP4460_MASK_HOT_MASK, | |
107 | .mask_cold_mask = OMAP4460_MASK_COLD_MASK, | |
108 | ||
109 | .bgap_mode_ctrl = OMAP4460_BGAP_CTRL_OFFSET, | |
110 | .mode_ctrl_mask = OMAP4460_SINGLE_MODE_MASK, | |
111 | ||
112 | .bgap_counter = OMAP4460_BGAP_COUNTER_OFFSET, | |
113 | .counter_mask = OMAP4460_COUNTER_MASK, | |
114 | ||
115 | .bgap_threshold = OMAP4460_BGAP_THRESHOLD_OFFSET, | |
116 | .threshold_thot_mask = OMAP4460_T_HOT_MASK, | |
117 | .threshold_tcold_mask = OMAP4460_T_COLD_MASK, | |
118 | ||
119 | .tshut_threshold = OMAP4460_BGAP_TSHUT_OFFSET, | |
120 | .tshut_hot_mask = OMAP4460_TSHUT_HOT_MASK, | |
121 | .tshut_cold_mask = OMAP4460_TSHUT_COLD_MASK, | |
122 | ||
123 | .bgap_status = OMAP4460_BGAP_STATUS_OFFSET, | |
124 | .status_clean_stop_mask = OMAP4460_CLEAN_STOP_MASK, | |
125 | .status_bgap_alert_mask = OMAP4460_BGAP_ALERT_MASK, | |
126 | .status_hot_mask = OMAP4460_HOT_FLAG_MASK, | |
127 | .status_cold_mask = OMAP4460_COLD_FLAG_MASK, | |
128 | ||
129 | .bgap_efuse = OMAP4460_FUSE_OPP_BGAP, | |
130 | }; | |
131 | ||
132 | /* Thresholds and limits for OMAP4460 MPU temperature sensor */ | |
133 | static struct temp_sensor_data omap4460_mpu_temp_sensor_data = { | |
134 | .tshut_hot = OMAP4460_TSHUT_HOT, | |
135 | .tshut_cold = OMAP4460_TSHUT_COLD, | |
136 | .t_hot = OMAP4460_T_HOT, | |
137 | .t_cold = OMAP4460_T_COLD, | |
138 | .min_freq = OMAP4460_MIN_FREQ, | |
139 | .max_freq = OMAP4460_MAX_FREQ, | |
140 | .max_temp = OMAP4460_MAX_TEMP, | |
141 | .min_temp = OMAP4460_MIN_TEMP, | |
142 | .hyst_val = OMAP4460_HYST_VAL, | |
143 | .adc_start_val = OMAP4460_ADC_START_VALUE, | |
144 | .adc_end_val = OMAP4460_ADC_END_VALUE, | |
145 | .update_int1 = 1000, | |
146 | .update_int2 = 2000, | |
147 | }; | |
148 | ||
149 | /* | |
150 | * Temperature values in milli degree celsius | |
151 | * ADC code values from 530 to 923 | |
152 | */ | |
153 | static const int | |
154 | omap4460_adc_to_temp[OMAP4460_ADC_END_VALUE - OMAP4460_ADC_START_VALUE + 1] = { | |
155 | -40000, -40000, -40000, -40000, -39800, -39400, -39000, -38600, -38200, | |
156 | -37800, -37300, -36800, -36400, -36000, -35600, -35200, -34800, | |
157 | -34300, -33800, -33400, -33000, -32600, -32200, -31800, -31300, | |
158 | -30800, -30400, -30000, -29600, -29200, -28700, -28200, -27800, | |
159 | -27400, -27000, -26600, -26200, -25700, -25200, -24800, -24400, | |
160 | -24000, -23600, -23200, -22700, -22200, -21800, -21400, -21000, | |
161 | -20600, -20200, -19700, -19200, -18800, -18400, -18000, -17600, | |
162 | -17200, -16700, -16200, -15800, -15400, -15000, -14600, -14200, | |
163 | -13700, -13200, -12800, -12400, -12000, -11600, -11200, -10700, | |
164 | -10200, -9800, -9400, -9000, -8600, -8200, -7700, -7200, -6800, | |
165 | -6400, -6000, -5600, -5200, -4800, -4300, -3800, -3400, -3000, | |
166 | -2600, -2200, -1800, -1300, -800, -400, 0, 400, 800, 1200, 1600, | |
167 | 2100, 2600, 3000, 3400, 3800, 4200, 4600, 5100, 5600, 6000, 6400, | |
168 | 6800, 7200, 7600, 8000, 8500, 9000, 9400, 9800, 10200, 10600, 11000, | |
169 | 11400, 11900, 12400, 12800, 13200, 13600, 14000, 14400, 14800, | |
170 | 15300, 15800, 16200, 16600, 17000, 17400, 17800, 18200, 18700, | |
171 | 19200, 19600, 20000, 20400, 20800, 21200, 21600, 22100, 22600, | |
172 | 23000, 23400, 23800, 24200, 24600, 25000, 25400, 25900, 26400, | |
173 | 26800, 27200, 27600, 28000, 28400, 28800, 29300, 29800, 30200, | |
174 | 30600, 31000, 31400, 31800, 32200, 32600, 33100, 33600, 34000, | |
175 | 34400, 34800, 35200, 35600, 36000, 36400, 36800, 37300, 37800, | |
176 | 38200, 38600, 39000, 39400, 39800, 40200, 40600, 41100, 41600, | |
177 | 42000, 42400, 42800, 43200, 43600, 44000, 44400, 44800, 45300, | |
178 | 45800, 46200, 46600, 47000, 47400, 47800, 48200, 48600, 49000, | |
179 | 49500, 50000, 50400, 50800, 51200, 51600, 52000, 52400, 52800, | |
180 | 53200, 53700, 54200, 54600, 55000, 55400, 55800, 56200, 56600, | |
181 | 57000, 57400, 57800, 58200, 58700, 59200, 59600, 60000, 60400, | |
182 | 60800, 61200, 61600, 62000, 62400, 62800, 63300, 63800, 64200, | |
183 | 64600, 65000, 65400, 65800, 66200, 66600, 67000, 67400, 67800, | |
184 | 68200, 68700, 69200, 69600, 70000, 70400, 70800, 71200, 71600, | |
185 | 72000, 72400, 72800, 73200, 73600, 74100, 74600, 75000, 75400, | |
186 | 75800, 76200, 76600, 77000, 77400, 77800, 78200, 78600, 79000, | |
187 | 79400, 79800, 80300, 80800, 81200, 81600, 82000, 82400, 82800, | |
188 | 83200, 83600, 84000, 84400, 84800, 85200, 85600, 86000, 86400, | |
189 | 86800, 87300, 87800, 88200, 88600, 89000, 89400, 89800, 90200, | |
190 | 90600, 91000, 91400, 91800, 92200, 92600, 93000, 93400, 93800, | |
191 | 94200, 94600, 95000, 95500, 96000, 96400, 96800, 97200, 97600, | |
192 | 98000, 98400, 98800, 99200, 99600, 100000, 100400, 100800, 101200, | |
193 | 101600, 102000, 102400, 102800, 103200, 103600, 104000, 104400, | |
194 | 104800, 105200, 105600, 106100, 106600, 107000, 107400, 107800, | |
195 | 108200, 108600, 109000, 109400, 109800, 110200, 110600, 111000, | |
196 | 111400, 111800, 112200, 112600, 113000, 113400, 113800, 114200, | |
197 | 114600, 115000, 115400, 115800, 116200, 116600, 117000, 117400, | |
198 | 117800, 118200, 118600, 119000, 119400, 119800, 120200, 120600, | |
199 | 121000, 121400, 121800, 122200, 122600, 123000, 123400, 123800, 124200, | |
200 | 124600, 124900, 125000, 125000, 125000, 125000 | |
201 | }; | |
202 | ||
203 | /* OMAP4460 data */ | |
204 | const struct omap_bandgap_data omap4460_data = { | |
205 | .features = OMAP_BANDGAP_FEATURE_TSHUT | | |
206 | OMAP_BANDGAP_FEATURE_TSHUT_CONFIG | | |
207 | OMAP_BANDGAP_FEATURE_TALERT | | |
208 | OMAP_BANDGAP_FEATURE_MODE_CONFIG | | |
209 | OMAP_BANDGAP_FEATURE_POWER_SWITCH | | |
210 | OMAP_BANDGAP_FEATURE_COUNTER, | |
211 | .fclock_name = "bandgap_ts_fclk", | |
212 | .div_ck_name = "div_ts_ck", | |
213 | .conv_table = omap4460_adc_to_temp, | |
214 | .expose_sensor = omap_thermal_expose_sensor, | |
215 | .remove_sensor = omap_thermal_remove_sensor, | |
216 | .sensors = { | |
217 | { | |
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218 | .registers = &omap4460_mpu_temp_sensor_registers, |
219 | .ts_data = &omap4460_mpu_temp_sensor_data, | |
220 | .domain = "cpu", | |
221 | .slope = OMAP_GRADIENT_SLOPE_4460, | |
222 | .constant = OMAP_GRADIENT_CONST_4460, | |
223 | .slope_pcb = OMAP_GRADIENT_SLOPE_W_PCB_4460, | |
224 | .constant_pcb = OMAP_GRADIENT_CONST_W_PCB_4460, | |
225 | .register_cooling = omap_thermal_register_cpu_cooling, | |
226 | .unregister_cooling = omap_thermal_unregister_cpu_cooling, | |
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227 | }, |
228 | }, | |
229 | .sensor_count = 1, | |
230 | }; | |
231 | ||
232 | /* OMAP4470 data */ | |
233 | const struct omap_bandgap_data omap4470_data = { | |
234 | .features = OMAP_BANDGAP_FEATURE_TSHUT | | |
235 | OMAP_BANDGAP_FEATURE_TSHUT_CONFIG | | |
236 | OMAP_BANDGAP_FEATURE_TALERT | | |
237 | OMAP_BANDGAP_FEATURE_MODE_CONFIG | | |
238 | OMAP_BANDGAP_FEATURE_POWER_SWITCH | | |
239 | OMAP_BANDGAP_FEATURE_COUNTER, | |
240 | .fclock_name = "bandgap_ts_fclk", | |
241 | .div_ck_name = "div_ts_ck", | |
242 | .conv_table = omap4460_adc_to_temp, | |
243 | .expose_sensor = omap_thermal_expose_sensor, | |
244 | .remove_sensor = omap_thermal_remove_sensor, | |
245 | .sensors = { | |
246 | { | |
cff860f5 EV |
247 | .registers = &omap4460_mpu_temp_sensor_registers, |
248 | .ts_data = &omap4460_mpu_temp_sensor_data, | |
249 | .domain = "cpu", | |
250 | .slope = OMAP_GRADIENT_SLOPE_4470, | |
251 | .constant = OMAP_GRADIENT_CONST_4470, | |
252 | .slope_pcb = OMAP_GRADIENT_SLOPE_W_PCB_4470, | |
253 | .constant_pcb = OMAP_GRADIENT_CONST_W_PCB_4470, | |
254 | .register_cooling = omap_thermal_register_cpu_cooling, | |
255 | .unregister_cooling = omap_thermal_unregister_cpu_cooling, | |
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256 | }, |
257 | }, | |
258 | .sensor_count = 1, | |
259 | }; |