omap4-thermal-data.c 10 KB

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  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. #include "ti-thermal.h"
  19. #include "ti-bandgap.h"
  20. #include "omap4xxx-bandgap.h"
  21. /*
  22. * OMAP4430 has one instance of thermal sensor for MPU
  23. * need to describe the individual bit fields
  24. */
  25. static struct temp_sensor_registers
  26. omap4430_mpu_temp_sensor_registers = {
  27. .temp_sensor_ctrl = OMAP4430_TEMP_SENSOR_CTRL_OFFSET,
  28. .bgap_tempsoff_mask = OMAP4430_BGAP_TEMPSOFF_MASK,
  29. .bgap_soc_mask = OMAP4430_BGAP_TEMP_SENSOR_SOC_MASK,
  30. .bgap_eocz_mask = OMAP4430_BGAP_TEMP_SENSOR_EOCZ_MASK,
  31. .bgap_dtemp_mask = OMAP4430_BGAP_TEMP_SENSOR_DTEMP_MASK,
  32. .bgap_mode_ctrl = OMAP4430_TEMP_SENSOR_CTRL_OFFSET,
  33. .mode_ctrl_mask = OMAP4430_SINGLE_MODE_MASK,
  34. .bgap_efuse = OMAP4430_FUSE_OPP_BGAP,
  35. };
  36. /* Thresholds and limits for OMAP4430 MPU temperature sensor */
  37. static struct temp_sensor_data omap4430_mpu_temp_sensor_data = {
  38. .min_freq = OMAP4430_MIN_FREQ,
  39. .max_freq = OMAP4430_MAX_FREQ,
  40. .max_temp = OMAP4430_MAX_TEMP,
  41. .min_temp = OMAP4430_MIN_TEMP,
  42. .hyst_val = OMAP4430_HYST_VAL,
  43. };
  44. /*
  45. * Temperature values in milli degree celsius
  46. * ADC code values from 530 to 923
  47. */
  48. static const int
  49. omap4430_adc_to_temp[OMAP4430_ADC_END_VALUE - OMAP4430_ADC_START_VALUE + 1] = {
  50. -38000, -35000, -34000, -32000, -30000, -28000, -26000, -24000, -22000,
  51. -20000, -18000, -17000, -15000, -13000, -12000, -10000, -8000, -6000,
  52. -5000, -3000, -1000, 0, 2000, 3000, 5000, 6000, 8000, 10000, 12000,
  53. 13000, 15000, 17000, 19000, 21000, 23000, 25000, 27000, 28000, 30000,
  54. 32000, 33000, 35000, 37000, 38000, 40000, 42000, 43000, 45000, 47000,
  55. 48000, 50000, 52000, 53000, 55000, 57000, 58000, 60000, 62000, 64000,
  56. 66000, 68000, 70000, 71000, 73000, 75000, 77000, 78000, 80000, 82000,
  57. 83000, 85000, 87000, 88000, 90000, 92000, 93000, 95000, 97000, 98000,
  58. 100000, 102000, 103000, 105000, 107000, 109000, 111000, 113000, 115000,
  59. 117000, 118000, 120000, 122000, 123000,
  60. };
  61. /* OMAP4430 data */
  62. const struct ti_bandgap_data omap4430_data = {
  63. .features = TI_BANDGAP_FEATURE_MODE_CONFIG |
  64. TI_BANDGAP_FEATURE_CLK_CTRL |
  65. TI_BANDGAP_FEATURE_POWER_SWITCH,
  66. .fclock_name = "bandgap_fclk",
  67. .div_ck_name = "bandgap_fclk",
  68. .conv_table = omap4430_adc_to_temp,
  69. .adc_start_val = OMAP4430_ADC_START_VALUE,
  70. .adc_end_val = OMAP4430_ADC_END_VALUE,
  71. .expose_sensor = ti_thermal_expose_sensor,
  72. .remove_sensor = ti_thermal_remove_sensor,
  73. .sensors = {
  74. {
  75. .registers = &omap4430_mpu_temp_sensor_registers,
  76. .ts_data = &omap4430_mpu_temp_sensor_data,
  77. .domain = "cpu",
  78. .slope = OMAP_GRADIENT_SLOPE_4430,
  79. .constant = OMAP_GRADIENT_CONST_4430,
  80. .slope_pcb = OMAP_GRADIENT_SLOPE_W_PCB_4430,
  81. .constant_pcb = OMAP_GRADIENT_CONST_W_PCB_4430,
  82. .register_cooling = ti_thermal_register_cpu_cooling,
  83. .unregister_cooling = ti_thermal_unregister_cpu_cooling,
  84. },
  85. },
  86. .sensor_count = 1,
  87. };
  88. /*
  89. * OMAP4460 has one instance of thermal sensor for MPU
  90. * need to describe the individual bit fields
  91. */
  92. static struct temp_sensor_registers
  93. omap4460_mpu_temp_sensor_registers = {
  94. .temp_sensor_ctrl = OMAP4460_TEMP_SENSOR_CTRL_OFFSET,
  95. .bgap_tempsoff_mask = OMAP4460_BGAP_TEMPSOFF_MASK,
  96. .bgap_soc_mask = OMAP4460_BGAP_TEMP_SENSOR_SOC_MASK,
  97. .bgap_eocz_mask = OMAP4460_BGAP_TEMP_SENSOR_EOCZ_MASK,
  98. .bgap_dtemp_mask = OMAP4460_BGAP_TEMP_SENSOR_DTEMP_MASK,
  99. .bgap_mask_ctrl = OMAP4460_BGAP_CTRL_OFFSET,
  100. .mask_hot_mask = OMAP4460_MASK_HOT_MASK,
  101. .mask_cold_mask = OMAP4460_MASK_COLD_MASK,
  102. .bgap_mode_ctrl = OMAP4460_BGAP_CTRL_OFFSET,
  103. .mode_ctrl_mask = OMAP4460_SINGLE_MODE_MASK,
  104. .bgap_counter = OMAP4460_BGAP_COUNTER_OFFSET,
  105. .counter_mask = OMAP4460_COUNTER_MASK,
  106. .bgap_threshold = OMAP4460_BGAP_THRESHOLD_OFFSET,
  107. .threshold_thot_mask = OMAP4460_T_HOT_MASK,
  108. .threshold_tcold_mask = OMAP4460_T_COLD_MASK,
  109. .tshut_threshold = OMAP4460_BGAP_TSHUT_OFFSET,
  110. .tshut_hot_mask = OMAP4460_TSHUT_HOT_MASK,
  111. .tshut_cold_mask = OMAP4460_TSHUT_COLD_MASK,
  112. .bgap_status = OMAP4460_BGAP_STATUS_OFFSET,
  113. .status_clean_stop_mask = OMAP4460_CLEAN_STOP_MASK,
  114. .status_bgap_alert_mask = OMAP4460_BGAP_ALERT_MASK,
  115. .status_hot_mask = OMAP4460_HOT_FLAG_MASK,
  116. .status_cold_mask = OMAP4460_COLD_FLAG_MASK,
  117. .bgap_efuse = OMAP4460_FUSE_OPP_BGAP,
  118. };
  119. /* Thresholds and limits for OMAP4460 MPU temperature sensor */
  120. static struct temp_sensor_data omap4460_mpu_temp_sensor_data = {
  121. .tshut_hot = OMAP4460_TSHUT_HOT,
  122. .tshut_cold = OMAP4460_TSHUT_COLD,
  123. .t_hot = OMAP4460_T_HOT,
  124. .t_cold = OMAP4460_T_COLD,
  125. .min_freq = OMAP4460_MIN_FREQ,
  126. .max_freq = OMAP4460_MAX_FREQ,
  127. .max_temp = OMAP4460_MAX_TEMP,
  128. .min_temp = OMAP4460_MIN_TEMP,
  129. .hyst_val = OMAP4460_HYST_VAL,
  130. .update_int1 = 1000,
  131. .update_int2 = 2000,
  132. };
  133. /*
  134. * Temperature values in milli degree celsius
  135. * ADC code values from 530 to 923
  136. */
  137. static const int
  138. omap4460_adc_to_temp[OMAP4460_ADC_END_VALUE - OMAP4460_ADC_START_VALUE + 1] = {
  139. -40000, -40000, -40000, -40000, -39800, -39400, -39000, -38600, -38200,
  140. -37800, -37300, -36800, -36400, -36000, -35600, -35200, -34800,
  141. -34300, -33800, -33400, -33000, -32600, -32200, -31800, -31300,
  142. -30800, -30400, -30000, -29600, -29200, -28700, -28200, -27800,
  143. -27400, -27000, -26600, -26200, -25700, -25200, -24800, -24400,
  144. -24000, -23600, -23200, -22700, -22200, -21800, -21400, -21000,
  145. -20600, -20200, -19700, -19200, -18800, -18400, -18000, -17600,
  146. -17200, -16700, -16200, -15800, -15400, -15000, -14600, -14200,
  147. -13700, -13200, -12800, -12400, -12000, -11600, -11200, -10700,
  148. -10200, -9800, -9400, -9000, -8600, -8200, -7700, -7200, -6800,
  149. -6400, -6000, -5600, -5200, -4800, -4300, -3800, -3400, -3000,
  150. -2600, -2200, -1800, -1300, -800, -400, 0, 400, 800, 1200, 1600,
  151. 2100, 2600, 3000, 3400, 3800, 4200, 4600, 5100, 5600, 6000, 6400,
  152. 6800, 7200, 7600, 8000, 8500, 9000, 9400, 9800, 10200, 10600, 11000,
  153. 11400, 11900, 12400, 12800, 13200, 13600, 14000, 14400, 14800,
  154. 15300, 15800, 16200, 16600, 17000, 17400, 17800, 18200, 18700,
  155. 19200, 19600, 20000, 20400, 20800, 21200, 21600, 22100, 22600,
  156. 23000, 23400, 23800, 24200, 24600, 25000, 25400, 25900, 26400,
  157. 26800, 27200, 27600, 28000, 28400, 28800, 29300, 29800, 30200,
  158. 30600, 31000, 31400, 31800, 32200, 32600, 33100, 33600, 34000,
  159. 34400, 34800, 35200, 35600, 36000, 36400, 36800, 37300, 37800,
  160. 38200, 38600, 39000, 39400, 39800, 40200, 40600, 41100, 41600,
  161. 42000, 42400, 42800, 43200, 43600, 44000, 44400, 44800, 45300,
  162. 45800, 46200, 46600, 47000, 47400, 47800, 48200, 48600, 49000,
  163. 49500, 50000, 50400, 50800, 51200, 51600, 52000, 52400, 52800,
  164. 53200, 53700, 54200, 54600, 55000, 55400, 55800, 56200, 56600,
  165. 57000, 57400, 57800, 58200, 58700, 59200, 59600, 60000, 60400,
  166. 60800, 61200, 61600, 62000, 62400, 62800, 63300, 63800, 64200,
  167. 64600, 65000, 65400, 65800, 66200, 66600, 67000, 67400, 67800,
  168. 68200, 68700, 69200, 69600, 70000, 70400, 70800, 71200, 71600,
  169. 72000, 72400, 72800, 73200, 73600, 74100, 74600, 75000, 75400,
  170. 75800, 76200, 76600, 77000, 77400, 77800, 78200, 78600, 79000,
  171. 79400, 79800, 80300, 80800, 81200, 81600, 82000, 82400, 82800,
  172. 83200, 83600, 84000, 84400, 84800, 85200, 85600, 86000, 86400,
  173. 86800, 87300, 87800, 88200, 88600, 89000, 89400, 89800, 90200,
  174. 90600, 91000, 91400, 91800, 92200, 92600, 93000, 93400, 93800,
  175. 94200, 94600, 95000, 95500, 96000, 96400, 96800, 97200, 97600,
  176. 98000, 98400, 98800, 99200, 99600, 100000, 100400, 100800, 101200,
  177. 101600, 102000, 102400, 102800, 103200, 103600, 104000, 104400,
  178. 104800, 105200, 105600, 106100, 106600, 107000, 107400, 107800,
  179. 108200, 108600, 109000, 109400, 109800, 110200, 110600, 111000,
  180. 111400, 111800, 112200, 112600, 113000, 113400, 113800, 114200,
  181. 114600, 115000, 115400, 115800, 116200, 116600, 117000, 117400,
  182. 117800, 118200, 118600, 119000, 119400, 119800, 120200, 120600,
  183. 121000, 121400, 121800, 122200, 122600, 123000, 123400, 123800, 124200,
  184. 124600, 124900, 125000, 125000, 125000, 125000
  185. };
  186. /* OMAP4460 data */
  187. const struct ti_bandgap_data omap4460_data = {
  188. .features = TI_BANDGAP_FEATURE_TSHUT |
  189. TI_BANDGAP_FEATURE_TSHUT_CONFIG |
  190. TI_BANDGAP_FEATURE_TALERT |
  191. TI_BANDGAP_FEATURE_MODE_CONFIG |
  192. TI_BANDGAP_FEATURE_POWER_SWITCH |
  193. TI_BANDGAP_FEATURE_CLK_CTRL |
  194. TI_BANDGAP_FEATURE_COUNTER,
  195. .fclock_name = "bandgap_ts_fclk",
  196. .div_ck_name = "div_ts_ck",
  197. .conv_table = omap4460_adc_to_temp,
  198. .adc_start_val = OMAP4460_ADC_START_VALUE,
  199. .adc_end_val = OMAP4460_ADC_END_VALUE,
  200. .expose_sensor = ti_thermal_expose_sensor,
  201. .remove_sensor = ti_thermal_remove_sensor,
  202. .report_temperature = ti_thermal_report_sensor_temperature,
  203. .sensors = {
  204. {
  205. .registers = &omap4460_mpu_temp_sensor_registers,
  206. .ts_data = &omap4460_mpu_temp_sensor_data,
  207. .domain = "cpu",
  208. .slope = OMAP_GRADIENT_SLOPE_4460,
  209. .constant = OMAP_GRADIENT_CONST_4460,
  210. .slope_pcb = OMAP_GRADIENT_SLOPE_W_PCB_4460,
  211. .constant_pcb = OMAP_GRADIENT_CONST_W_PCB_4460,
  212. .register_cooling = ti_thermal_register_cpu_cooling,
  213. .unregister_cooling = ti_thermal_unregister_cpu_cooling,
  214. },
  215. },
  216. .sensor_count = 1,
  217. };
  218. /* OMAP4470 data */
  219. const struct ti_bandgap_data omap4470_data = {
  220. .features = TI_BANDGAP_FEATURE_TSHUT |
  221. TI_BANDGAP_FEATURE_TSHUT_CONFIG |
  222. TI_BANDGAP_FEATURE_TALERT |
  223. TI_BANDGAP_FEATURE_MODE_CONFIG |
  224. TI_BANDGAP_FEATURE_POWER_SWITCH |
  225. TI_BANDGAP_FEATURE_CLK_CTRL |
  226. TI_BANDGAP_FEATURE_COUNTER,
  227. .fclock_name = "bandgap_ts_fclk",
  228. .div_ck_name = "div_ts_ck",
  229. .conv_table = omap4460_adc_to_temp,
  230. .adc_start_val = OMAP4460_ADC_START_VALUE,
  231. .adc_end_val = OMAP4460_ADC_END_VALUE,
  232. .expose_sensor = ti_thermal_expose_sensor,
  233. .remove_sensor = ti_thermal_remove_sensor,
  234. .report_temperature = ti_thermal_report_sensor_temperature,
  235. .sensors = {
  236. {
  237. .registers = &omap4460_mpu_temp_sensor_registers,
  238. .ts_data = &omap4460_mpu_temp_sensor_data,
  239. .domain = "cpu",
  240. .slope = OMAP_GRADIENT_SLOPE_4470,
  241. .constant = OMAP_GRADIENT_CONST_4470,
  242. .slope_pcb = OMAP_GRADIENT_SLOPE_W_PCB_4470,
  243. .constant_pcb = OMAP_GRADIENT_CONST_W_PCB_4470,
  244. .register_cooling = ti_thermal_register_cpu_cooling,
  245. .unregister_cooling = ti_thermal_unregister_cpu_cooling,
  246. },
  247. },
  248. .sensor_count = 1,
  249. };