omap4-thermal-data.c 9.4 KB

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  1. // SPDX-License-Identifier: GPL-2.0-only
  2. /*
  3. * OMAP4 thermal driver.
  4. *
  5. * Copyright (C) 2011-2012 Texas Instruments Inc.
  6. * Contact:
  7. * Eduardo Valentin <[email protected]>
  8. */
  9. #include "ti-thermal.h"
  10. #include "ti-bandgap.h"
  11. #include "omap4xxx-bandgap.h"
  12. /*
  13. * OMAP4430 has one instance of thermal sensor for MPU
  14. * need to describe the individual bit fields
  15. */
  16. static struct temp_sensor_registers
  17. omap4430_mpu_temp_sensor_registers = {
  18. .temp_sensor_ctrl = OMAP4430_TEMP_SENSOR_CTRL_OFFSET,
  19. .bgap_tempsoff_mask = OMAP4430_BGAP_TEMPSOFF_MASK,
  20. .bgap_soc_mask = OMAP4430_BGAP_TEMP_SENSOR_SOC_MASK,
  21. .bgap_eocz_mask = OMAP4430_BGAP_TEMP_SENSOR_EOCZ_MASK,
  22. .bgap_dtemp_mask = OMAP4430_BGAP_TEMP_SENSOR_DTEMP_MASK,
  23. .bgap_mode_ctrl = OMAP4430_TEMP_SENSOR_CTRL_OFFSET,
  24. .mode_ctrl_mask = OMAP4430_CONTINUOUS_MODE_MASK,
  25. .bgap_efuse = OMAP4430_FUSE_OPP_BGAP,
  26. };
  27. /* Thresholds and limits for OMAP4430 MPU temperature sensor */
  28. static struct temp_sensor_data omap4430_mpu_temp_sensor_data = {
  29. .min_freq = OMAP4430_MIN_FREQ,
  30. .max_freq = OMAP4430_MAX_FREQ,
  31. };
  32. /*
  33. * Temperature values in milli degree celsius
  34. * ADC code values from 13 to 107, see TRM
  35. * "18.4.10.2.3 ADC Codes Versus Temperature".
  36. */
  37. static const int
  38. omap4430_adc_to_temp[OMAP4430_ADC_END_VALUE - OMAP4430_ADC_START_VALUE + 1] = {
  39. -40000, -38000, -35000, -34000, -32000, -30000, -28000, -26000, -24000,
  40. -22000, -20000, -18500, -17000, -15000, -13500, -12000, -10000, -8000,
  41. -6500, -5000, -3500, -1500, 0, 2000, 3500, 5000, 6500, 8500, 10000,
  42. 12000, 13500, 15000, 17000, 19000, 21000, 23000, 25000, 27000, 28500,
  43. 30000, 32000, 33500, 35000, 37000, 38500, 40000, 42000, 43500, 45000,
  44. 47000, 48500, 50000, 52000, 53500, 55000, 57000, 58500, 60000, 62000,
  45. 64000, 66000, 68000, 70000, 71500, 73500, 75000, 77000, 78500, 80000,
  46. 82000, 83500, 85000, 87000, 88500, 90000, 92000, 93500, 95000, 97000,
  47. 98500, 100000, 102000, 103500, 105000, 107000, 109000, 111000, 113000,
  48. 115000, 117000, 118500, 120000, 122000, 123500, 125000,
  49. };
  50. /* OMAP4430 data */
  51. const struct ti_bandgap_data omap4430_data = {
  52. .features = TI_BANDGAP_FEATURE_MODE_CONFIG |
  53. TI_BANDGAP_FEATURE_CLK_CTRL |
  54. TI_BANDGAP_FEATURE_POWER_SWITCH |
  55. TI_BANDGAP_FEATURE_CONT_MODE_ONLY,
  56. .fclock_name = "bandgap_fclk",
  57. .div_ck_name = "bandgap_fclk",
  58. .conv_table = omap4430_adc_to_temp,
  59. .adc_start_val = OMAP4430_ADC_START_VALUE,
  60. .adc_end_val = OMAP4430_ADC_END_VALUE,
  61. .expose_sensor = ti_thermal_expose_sensor,
  62. .remove_sensor = ti_thermal_remove_sensor,
  63. .sensors = {
  64. {
  65. .registers = &omap4430_mpu_temp_sensor_registers,
  66. .ts_data = &omap4430_mpu_temp_sensor_data,
  67. .domain = "cpu",
  68. .slope_pcb = OMAP_GRADIENT_SLOPE_W_PCB_4430,
  69. .constant_pcb = OMAP_GRADIENT_CONST_W_PCB_4430,
  70. .register_cooling = ti_thermal_register_cpu_cooling,
  71. .unregister_cooling = ti_thermal_unregister_cpu_cooling,
  72. },
  73. },
  74. .sensor_count = 1,
  75. };
  76. /*
  77. * OMAP4460 has one instance of thermal sensor for MPU
  78. * need to describe the individual bit fields
  79. */
  80. static struct temp_sensor_registers
  81. omap4460_mpu_temp_sensor_registers = {
  82. .temp_sensor_ctrl = OMAP4460_TEMP_SENSOR_CTRL_OFFSET,
  83. .bgap_tempsoff_mask = OMAP4460_BGAP_TEMPSOFF_MASK,
  84. .bgap_soc_mask = OMAP4460_BGAP_TEMP_SENSOR_SOC_MASK,
  85. .bgap_eocz_mask = OMAP4460_BGAP_TEMP_SENSOR_EOCZ_MASK,
  86. .bgap_dtemp_mask = OMAP4460_BGAP_TEMP_SENSOR_DTEMP_MASK,
  87. .bgap_mask_ctrl = OMAP4460_BGAP_CTRL_OFFSET,
  88. .mask_hot_mask = OMAP4460_MASK_HOT_MASK,
  89. .mask_cold_mask = OMAP4460_MASK_COLD_MASK,
  90. .bgap_mode_ctrl = OMAP4460_BGAP_CTRL_OFFSET,
  91. .mode_ctrl_mask = OMAP4460_CONTINUOUS_MODE_MASK,
  92. .bgap_counter = OMAP4460_BGAP_COUNTER_OFFSET,
  93. .counter_mask = OMAP4460_COUNTER_MASK,
  94. .bgap_threshold = OMAP4460_BGAP_THRESHOLD_OFFSET,
  95. .threshold_thot_mask = OMAP4460_T_HOT_MASK,
  96. .threshold_tcold_mask = OMAP4460_T_COLD_MASK,
  97. .tshut_threshold = OMAP4460_BGAP_TSHUT_OFFSET,
  98. .tshut_hot_mask = OMAP4460_TSHUT_HOT_MASK,
  99. .tshut_cold_mask = OMAP4460_TSHUT_COLD_MASK,
  100. .bgap_status = OMAP4460_BGAP_STATUS_OFFSET,
  101. .status_hot_mask = OMAP4460_HOT_FLAG_MASK,
  102. .status_cold_mask = OMAP4460_COLD_FLAG_MASK,
  103. .bgap_efuse = OMAP4460_FUSE_OPP_BGAP,
  104. };
  105. /* Thresholds and limits for OMAP4460 MPU temperature sensor */
  106. static struct temp_sensor_data omap4460_mpu_temp_sensor_data = {
  107. .tshut_hot = OMAP4460_TSHUT_HOT,
  108. .tshut_cold = OMAP4460_TSHUT_COLD,
  109. .t_hot = OMAP4460_T_HOT,
  110. .t_cold = OMAP4460_T_COLD,
  111. .min_freq = OMAP4460_MIN_FREQ,
  112. .max_freq = OMAP4460_MAX_FREQ,
  113. };
  114. /*
  115. * Temperature values in milli degree celsius
  116. * ADC code values from 530 to 923
  117. */
  118. static const int
  119. omap4460_adc_to_temp[OMAP4460_ADC_END_VALUE - OMAP4460_ADC_START_VALUE + 1] = {
  120. -40000, -40000, -40000, -40000, -39800, -39400, -39000, -38600, -38200,
  121. -37800, -37300, -36800, -36400, -36000, -35600, -35200, -34800,
  122. -34300, -33800, -33400, -33000, -32600, -32200, -31800, -31300,
  123. -30800, -30400, -30000, -29600, -29200, -28700, -28200, -27800,
  124. -27400, -27000, -26600, -26200, -25700, -25200, -24800, -24400,
  125. -24000, -23600, -23200, -22700, -22200, -21800, -21400, -21000,
  126. -20600, -20200, -19700, -19200, -18800, -18400, -18000, -17600,
  127. -17200, -16700, -16200, -15800, -15400, -15000, -14600, -14200,
  128. -13700, -13200, -12800, -12400, -12000, -11600, -11200, -10700,
  129. -10200, -9800, -9400, -9000, -8600, -8200, -7700, -7200, -6800,
  130. -6400, -6000, -5600, -5200, -4800, -4300, -3800, -3400, -3000,
  131. -2600, -2200, -1800, -1300, -800, -400, 0, 400, 800, 1200, 1600,
  132. 2100, 2600, 3000, 3400, 3800, 4200, 4600, 5100, 5600, 6000, 6400,
  133. 6800, 7200, 7600, 8000, 8500, 9000, 9400, 9800, 10200, 10600, 11000,
  134. 11400, 11900, 12400, 12800, 13200, 13600, 14000, 14400, 14800,
  135. 15300, 15800, 16200, 16600, 17000, 17400, 17800, 18200, 18700,
  136. 19200, 19600, 20000, 20400, 20800, 21200, 21600, 22100, 22600,
  137. 23000, 23400, 23800, 24200, 24600, 25000, 25400, 25900, 26400,
  138. 26800, 27200, 27600, 28000, 28400, 28800, 29300, 29800, 30200,
  139. 30600, 31000, 31400, 31800, 32200, 32600, 33100, 33600, 34000,
  140. 34400, 34800, 35200, 35600, 36000, 36400, 36800, 37300, 37800,
  141. 38200, 38600, 39000, 39400, 39800, 40200, 40600, 41100, 41600,
  142. 42000, 42400, 42800, 43200, 43600, 44000, 44400, 44800, 45300,
  143. 45800, 46200, 46600, 47000, 47400, 47800, 48200, 48600, 49000,
  144. 49500, 50000, 50400, 50800, 51200, 51600, 52000, 52400, 52800,
  145. 53200, 53700, 54200, 54600, 55000, 55400, 55800, 56200, 56600,
  146. 57000, 57400, 57800, 58200, 58700, 59200, 59600, 60000, 60400,
  147. 60800, 61200, 61600, 62000, 62400, 62800, 63300, 63800, 64200,
  148. 64600, 65000, 65400, 65800, 66200, 66600, 67000, 67400, 67800,
  149. 68200, 68700, 69200, 69600, 70000, 70400, 70800, 71200, 71600,
  150. 72000, 72400, 72800, 73200, 73600, 74100, 74600, 75000, 75400,
  151. 75800, 76200, 76600, 77000, 77400, 77800, 78200, 78600, 79000,
  152. 79400, 79800, 80300, 80800, 81200, 81600, 82000, 82400, 82800,
  153. 83200, 83600, 84000, 84400, 84800, 85200, 85600, 86000, 86400,
  154. 86800, 87300, 87800, 88200, 88600, 89000, 89400, 89800, 90200,
  155. 90600, 91000, 91400, 91800, 92200, 92600, 93000, 93400, 93800,
  156. 94200, 94600, 95000, 95500, 96000, 96400, 96800, 97200, 97600,
  157. 98000, 98400, 98800, 99200, 99600, 100000, 100400, 100800, 101200,
  158. 101600, 102000, 102400, 102800, 103200, 103600, 104000, 104400,
  159. 104800, 105200, 105600, 106100, 106600, 107000, 107400, 107800,
  160. 108200, 108600, 109000, 109400, 109800, 110200, 110600, 111000,
  161. 111400, 111800, 112200, 112600, 113000, 113400, 113800, 114200,
  162. 114600, 115000, 115400, 115800, 116200, 116600, 117000, 117400,
  163. 117800, 118200, 118600, 119000, 119400, 119800, 120200, 120600,
  164. 121000, 121400, 121800, 122200, 122600, 123000, 123400, 123800, 124200,
  165. 124600, 124900, 125000, 125000, 125000, 125000
  166. };
  167. /* OMAP4460 data */
  168. const struct ti_bandgap_data omap4460_data = {
  169. .features = TI_BANDGAP_FEATURE_TSHUT |
  170. TI_BANDGAP_FEATURE_TSHUT_CONFIG |
  171. TI_BANDGAP_FEATURE_TALERT |
  172. TI_BANDGAP_FEATURE_MODE_CONFIG |
  173. TI_BANDGAP_FEATURE_POWER_SWITCH |
  174. TI_BANDGAP_FEATURE_CLK_CTRL |
  175. TI_BANDGAP_FEATURE_COUNTER,
  176. .fclock_name = "bandgap_ts_fclk",
  177. .div_ck_name = "div_ts_ck",
  178. .conv_table = omap4460_adc_to_temp,
  179. .adc_start_val = OMAP4460_ADC_START_VALUE,
  180. .adc_end_val = OMAP4460_ADC_END_VALUE,
  181. .expose_sensor = ti_thermal_expose_sensor,
  182. .remove_sensor = ti_thermal_remove_sensor,
  183. .report_temperature = ti_thermal_report_sensor_temperature,
  184. .sensors = {
  185. {
  186. .registers = &omap4460_mpu_temp_sensor_registers,
  187. .ts_data = &omap4460_mpu_temp_sensor_data,
  188. .domain = "cpu",
  189. .slope_pcb = OMAP_GRADIENT_SLOPE_W_PCB_4460,
  190. .constant_pcb = OMAP_GRADIENT_CONST_W_PCB_4460,
  191. .register_cooling = ti_thermal_register_cpu_cooling,
  192. .unregister_cooling = ti_thermal_unregister_cpu_cooling,
  193. },
  194. },
  195. .sensor_count = 1,
  196. };
  197. /* OMAP4470 data */
  198. const struct ti_bandgap_data omap4470_data = {
  199. .features = TI_BANDGAP_FEATURE_TSHUT |
  200. TI_BANDGAP_FEATURE_TSHUT_CONFIG |
  201. TI_BANDGAP_FEATURE_TALERT |
  202. TI_BANDGAP_FEATURE_MODE_CONFIG |
  203. TI_BANDGAP_FEATURE_POWER_SWITCH |
  204. TI_BANDGAP_FEATURE_CLK_CTRL |
  205. TI_BANDGAP_FEATURE_COUNTER,
  206. .fclock_name = "bandgap_ts_fclk",
  207. .div_ck_name = "div_ts_ck",
  208. .conv_table = omap4460_adc_to_temp,
  209. .adc_start_val = OMAP4460_ADC_START_VALUE,
  210. .adc_end_val = OMAP4460_ADC_END_VALUE,
  211. .expose_sensor = ti_thermal_expose_sensor,
  212. .remove_sensor = ti_thermal_remove_sensor,
  213. .report_temperature = ti_thermal_report_sensor_temperature,
  214. .sensors = {
  215. {
  216. .registers = &omap4460_mpu_temp_sensor_registers,
  217. .ts_data = &omap4460_mpu_temp_sensor_data,
  218. .domain = "cpu",
  219. .slope_pcb = OMAP_GRADIENT_SLOPE_W_PCB_4470,
  220. .constant_pcb = OMAP_GRADIENT_CONST_W_PCB_4470,
  221. .register_cooling = ti_thermal_register_cpu_cooling,
  222. .unregister_cooling = ti_thermal_unregister_cpu_cooling,
  223. },
  224. },
  225. .sensor_count = 1,
  226. };