2 * OMAP4 thermal driver.
4 * Copyright (C) 2011-2012 Texas Instruments Inc.
6 * Eduardo Valentin <eduardo.valentin@ti.com>
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.
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.
19 #include "ti-thermal.h"
20 #include "ti-bandgap.h"
21 #include "omap4xxx-bandgap.h"
24 * OMAP4430 has one instance of thermal sensor for MPU
25 * need to describe the individual bit fields
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,
35 .bgap_mode_ctrl = OMAP4430_TEMP_SENSOR_CTRL_OFFSET,
36 .mode_ctrl_mask = OMAP4430_SINGLE_MODE_MASK,
38 .bgap_efuse = OMAP4430_FUSE_OPP_BGAP,
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,
48 * Temperature values in milli degree celsius
49 * ADC code values from 13 to 107, see TRM
50 * "18.4.10.2.3 ADC Codes Versus Temperature".
53 omap4430_adc_to_temp[OMAP4430_ADC_END_VALUE - OMAP4430_ADC_START_VALUE + 1] = {
54 -40000, -38000, -35000, -34000, -32000, -30000, -28000, -26000, -24000,
55 -22000, -20000, -18500, -17000, -15000, -13500, -12000, -10000, -8000,
56 -6500, -5000, -3500, -1500, 0, 2000, 3500, 5000, 6500, 8500, 10000,
57 12000, 13500, 15000, 17000, 19000, 21000, 23000, 25000, 27000, 28500,
58 30000, 32000, 33500, 35000, 37000, 38500, 40000, 42000, 43500, 45000,
59 47000, 48500, 50000, 52000, 53500, 55000, 57000, 58500, 60000, 62000,
60 64000, 66000, 68000, 70000, 71500, 73500, 75000, 77000, 78500, 80000,
61 82000, 83500, 85000, 87000, 88500, 90000, 92000, 93500, 95000, 97000,
62 98500, 100000, 102000, 103500, 105000, 107000, 109000, 111000, 113000,
63 115000, 117000, 118500, 120000, 122000, 123500, 125000,
67 const struct ti_bandgap_data omap4430_data = {
68 .features = TI_BANDGAP_FEATURE_MODE_CONFIG |
69 TI_BANDGAP_FEATURE_CLK_CTRL |
70 TI_BANDGAP_FEATURE_POWER_SWITCH,
71 .fclock_name = "bandgap_fclk",
72 .div_ck_name = "bandgap_fclk",
73 .conv_table = omap4430_adc_to_temp,
74 .adc_start_val = OMAP4430_ADC_START_VALUE,
75 .adc_end_val = OMAP4430_ADC_END_VALUE,
76 .expose_sensor = ti_thermal_expose_sensor,
77 .remove_sensor = ti_thermal_remove_sensor,
80 .registers = &omap4430_mpu_temp_sensor_registers,
81 .ts_data = &omap4430_mpu_temp_sensor_data,
83 .slope_pcb = OMAP_GRADIENT_SLOPE_W_PCB_4430,
84 .constant_pcb = OMAP_GRADIENT_CONST_W_PCB_4430,
85 .register_cooling = ti_thermal_register_cpu_cooling,
86 .unregister_cooling = ti_thermal_unregister_cpu_cooling,
92 * OMAP4460 has one instance of thermal sensor for MPU
93 * need to describe the individual bit fields
95 static struct temp_sensor_registers
96 omap4460_mpu_temp_sensor_registers = {
97 .temp_sensor_ctrl = OMAP4460_TEMP_SENSOR_CTRL_OFFSET,
98 .bgap_tempsoff_mask = OMAP4460_BGAP_TEMPSOFF_MASK,
99 .bgap_soc_mask = OMAP4460_BGAP_TEMP_SENSOR_SOC_MASK,
100 .bgap_eocz_mask = OMAP4460_BGAP_TEMP_SENSOR_EOCZ_MASK,
101 .bgap_dtemp_mask = OMAP4460_BGAP_TEMP_SENSOR_DTEMP_MASK,
103 .bgap_mask_ctrl = OMAP4460_BGAP_CTRL_OFFSET,
104 .mask_hot_mask = OMAP4460_MASK_HOT_MASK,
105 .mask_cold_mask = OMAP4460_MASK_COLD_MASK,
107 .bgap_mode_ctrl = OMAP4460_BGAP_CTRL_OFFSET,
108 .mode_ctrl_mask = OMAP4460_SINGLE_MODE_MASK,
110 .bgap_counter = OMAP4460_BGAP_COUNTER_OFFSET,
111 .counter_mask = OMAP4460_COUNTER_MASK,
113 .bgap_threshold = OMAP4460_BGAP_THRESHOLD_OFFSET,
114 .threshold_thot_mask = OMAP4460_T_HOT_MASK,
115 .threshold_tcold_mask = OMAP4460_T_COLD_MASK,
117 .tshut_threshold = OMAP4460_BGAP_TSHUT_OFFSET,
118 .tshut_hot_mask = OMAP4460_TSHUT_HOT_MASK,
119 .tshut_cold_mask = OMAP4460_TSHUT_COLD_MASK,
121 .bgap_status = OMAP4460_BGAP_STATUS_OFFSET,
122 .status_hot_mask = OMAP4460_HOT_FLAG_MASK,
123 .status_cold_mask = OMAP4460_COLD_FLAG_MASK,
125 .bgap_efuse = OMAP4460_FUSE_OPP_BGAP,
128 /* Thresholds and limits for OMAP4460 MPU temperature sensor */
129 static struct temp_sensor_data omap4460_mpu_temp_sensor_data = {
130 .tshut_hot = OMAP4460_TSHUT_HOT,
131 .tshut_cold = OMAP4460_TSHUT_COLD,
132 .t_hot = OMAP4460_T_HOT,
133 .t_cold = OMAP4460_T_COLD,
134 .min_freq = OMAP4460_MIN_FREQ,
135 .max_freq = OMAP4460_MAX_FREQ,
139 * Temperature values in milli degree celsius
140 * ADC code values from 530 to 923
143 omap4460_adc_to_temp[OMAP4460_ADC_END_VALUE - OMAP4460_ADC_START_VALUE + 1] = {
144 -40000, -40000, -40000, -40000, -39800, -39400, -39000, -38600, -38200,
145 -37800, -37300, -36800, -36400, -36000, -35600, -35200, -34800,
146 -34300, -33800, -33400, -33000, -32600, -32200, -31800, -31300,
147 -30800, -30400, -30000, -29600, -29200, -28700, -28200, -27800,
148 -27400, -27000, -26600, -26200, -25700, -25200, -24800, -24400,
149 -24000, -23600, -23200, -22700, -22200, -21800, -21400, -21000,
150 -20600, -20200, -19700, -19200, -18800, -18400, -18000, -17600,
151 -17200, -16700, -16200, -15800, -15400, -15000, -14600, -14200,
152 -13700, -13200, -12800, -12400, -12000, -11600, -11200, -10700,
153 -10200, -9800, -9400, -9000, -8600, -8200, -7700, -7200, -6800,
154 -6400, -6000, -5600, -5200, -4800, -4300, -3800, -3400, -3000,
155 -2600, -2200, -1800, -1300, -800, -400, 0, 400, 800, 1200, 1600,
156 2100, 2600, 3000, 3400, 3800, 4200, 4600, 5100, 5600, 6000, 6400,
157 6800, 7200, 7600, 8000, 8500, 9000, 9400, 9800, 10200, 10600, 11000,
158 11400, 11900, 12400, 12800, 13200, 13600, 14000, 14400, 14800,
159 15300, 15800, 16200, 16600, 17000, 17400, 17800, 18200, 18700,
160 19200, 19600, 20000, 20400, 20800, 21200, 21600, 22100, 22600,
161 23000, 23400, 23800, 24200, 24600, 25000, 25400, 25900, 26400,
162 26800, 27200, 27600, 28000, 28400, 28800, 29300, 29800, 30200,
163 30600, 31000, 31400, 31800, 32200, 32600, 33100, 33600, 34000,
164 34400, 34800, 35200, 35600, 36000, 36400, 36800, 37300, 37800,
165 38200, 38600, 39000, 39400, 39800, 40200, 40600, 41100, 41600,
166 42000, 42400, 42800, 43200, 43600, 44000, 44400, 44800, 45300,
167 45800, 46200, 46600, 47000, 47400, 47800, 48200, 48600, 49000,
168 49500, 50000, 50400, 50800, 51200, 51600, 52000, 52400, 52800,
169 53200, 53700, 54200, 54600, 55000, 55400, 55800, 56200, 56600,
170 57000, 57400, 57800, 58200, 58700, 59200, 59600, 60000, 60400,
171 60800, 61200, 61600, 62000, 62400, 62800, 63300, 63800, 64200,
172 64600, 65000, 65400, 65800, 66200, 66600, 67000, 67400, 67800,
173 68200, 68700, 69200, 69600, 70000, 70400, 70800, 71200, 71600,
174 72000, 72400, 72800, 73200, 73600, 74100, 74600, 75000, 75400,
175 75800, 76200, 76600, 77000, 77400, 77800, 78200, 78600, 79000,
176 79400, 79800, 80300, 80800, 81200, 81600, 82000, 82400, 82800,
177 83200, 83600, 84000, 84400, 84800, 85200, 85600, 86000, 86400,
178 86800, 87300, 87800, 88200, 88600, 89000, 89400, 89800, 90200,
179 90600, 91000, 91400, 91800, 92200, 92600, 93000, 93400, 93800,
180 94200, 94600, 95000, 95500, 96000, 96400, 96800, 97200, 97600,
181 98000, 98400, 98800, 99200, 99600, 100000, 100400, 100800, 101200,
182 101600, 102000, 102400, 102800, 103200, 103600, 104000, 104400,
183 104800, 105200, 105600, 106100, 106600, 107000, 107400, 107800,
184 108200, 108600, 109000, 109400, 109800, 110200, 110600, 111000,
185 111400, 111800, 112200, 112600, 113000, 113400, 113800, 114200,
186 114600, 115000, 115400, 115800, 116200, 116600, 117000, 117400,
187 117800, 118200, 118600, 119000, 119400, 119800, 120200, 120600,
188 121000, 121400, 121800, 122200, 122600, 123000, 123400, 123800, 124200,
189 124600, 124900, 125000, 125000, 125000, 125000
193 const struct ti_bandgap_data omap4460_data = {
194 .features = TI_BANDGAP_FEATURE_TSHUT |
195 TI_BANDGAP_FEATURE_TSHUT_CONFIG |
196 TI_BANDGAP_FEATURE_TALERT |
197 TI_BANDGAP_FEATURE_MODE_CONFIG |
198 TI_BANDGAP_FEATURE_POWER_SWITCH |
199 TI_BANDGAP_FEATURE_CLK_CTRL |
200 TI_BANDGAP_FEATURE_COUNTER,
201 .fclock_name = "bandgap_ts_fclk",
202 .div_ck_name = "div_ts_ck",
203 .conv_table = omap4460_adc_to_temp,
204 .adc_start_val = OMAP4460_ADC_START_VALUE,
205 .adc_end_val = OMAP4460_ADC_END_VALUE,
206 .expose_sensor = ti_thermal_expose_sensor,
207 .remove_sensor = ti_thermal_remove_sensor,
208 .report_temperature = ti_thermal_report_sensor_temperature,
211 .registers = &omap4460_mpu_temp_sensor_registers,
212 .ts_data = &omap4460_mpu_temp_sensor_data,
214 .slope_pcb = OMAP_GRADIENT_SLOPE_W_PCB_4460,
215 .constant_pcb = OMAP_GRADIENT_CONST_W_PCB_4460,
216 .register_cooling = ti_thermal_register_cpu_cooling,
217 .unregister_cooling = ti_thermal_unregister_cpu_cooling,
224 const struct ti_bandgap_data omap4470_data = {
225 .features = TI_BANDGAP_FEATURE_TSHUT |
226 TI_BANDGAP_FEATURE_TSHUT_CONFIG |
227 TI_BANDGAP_FEATURE_TALERT |
228 TI_BANDGAP_FEATURE_MODE_CONFIG |
229 TI_BANDGAP_FEATURE_POWER_SWITCH |
230 TI_BANDGAP_FEATURE_CLK_CTRL |
231 TI_BANDGAP_FEATURE_COUNTER,
232 .fclock_name = "bandgap_ts_fclk",
233 .div_ck_name = "div_ts_ck",
234 .conv_table = omap4460_adc_to_temp,
235 .adc_start_val = OMAP4460_ADC_START_VALUE,
236 .adc_end_val = OMAP4460_ADC_END_VALUE,
237 .expose_sensor = ti_thermal_expose_sensor,
238 .remove_sensor = ti_thermal_remove_sensor,
239 .report_temperature = ti_thermal_report_sensor_temperature,
242 .registers = &omap4460_mpu_temp_sensor_registers,
243 .ts_data = &omap4460_mpu_temp_sensor_data,
245 .slope_pcb = OMAP_GRADIENT_SLOPE_W_PCB_4470,
246 .constant_pcb = OMAP_GRADIENT_CONST_W_PCB_4470,
247 .register_cooling = ti_thermal_register_cpu_cooling,
248 .unregister_cooling = ti_thermal_unregister_cpu_cooling,