drivers/thermal/ti-soc-thermal/omap4xxx-bandgap.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * OMAP4xxx bandgap registers, bitfields and temperature definitions
   4  *
   5  * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/
   6  * Contact:
   7  *   Eduardo Valentin <eduardo.valentin@ti.com>
   8  */
   9 #ifndef __OMAP4XXX_BANDGAP_H
  10 #define __OMAP4XXX_BANDGAP_H
  11
  12 /**
  13  * *** OMAP4430 ***
  14  *
  15  * Below, in sequence, are the Register definitions,
  16  * the bitfields and the temperature definitions for OMAP4430.
  17  */
  18
  19 /**
  20  * OMAP4430 register definitions
  21  *
  22  * Registers are defined as offsets. The offsets are
  23  * relative to FUSE_OPP_BGAP on 4430.
  24  */
  25
  26 /* OMAP4430.FUSE_OPP_BGAP */
  27 #define OMAP4430_FUSE_OPP_BGAP                          0x0
  28
  29 /* OMAP4430.TEMP_SENSOR  */
  30 #define OMAP4430_TEMP_SENSOR_CTRL_OFFSET                0xCC
  31
  32 /**
  33  * Register and bit definitions for OMAP4430
  34  *
  35  * All the macros bellow define the required bits for
  36  * controlling temperature on OMAP4430. Bit defines are
  37  * grouped by register.
  38  */
  39
  40 /* OMAP4430.TEMP_SENSOR bits */
  41 #define OMAP4430_BGAP_TEMPSOFF_MASK                     BIT(12)
  42 #define OMAP4430_BGAP_TSHUT_MASK                        BIT(11)
  43 #define OMAP4430_SINGLE_MODE_MASK                       BIT(10)
  44 #define OMAP4430_BGAP_TEMP_SENSOR_SOC_MASK              BIT(9)
  45 #define OMAP4430_BGAP_TEMP_SENSOR_EOCZ_MASK             BIT(8)
  46 #define OMAP4430_BGAP_TEMP_SENSOR_DTEMP_MASK            (0xff << 0)
  47
  48 /**
  49  * Temperature limits and thresholds for OMAP4430
  50  *
  51  * All the macros bellow are definitions for handling the
  52  * ADC conversions and representation of temperature limits
  53  * and thresholds for OMAP4430.
  54  */
  55
  56 /*
  57  * ADC conversion table limits. Ignore values outside the TRM listed
  58  * range to avoid bogus thermal shutdowns. See omap4430 TRM chapter
  59  * "18.4.10.2.3 ADC Codes Versus Temperature".
  60  */
  61 #define OMAP4430_ADC_START_VALUE                        13
  62 #define OMAP4430_ADC_END_VALUE                          107
  63 /* bandgap clock limits (no control on 4430) */
  64 #define OMAP4430_MAX_FREQ                               32768
  65 #define OMAP4430_MIN_FREQ                               32768
  66
  67 /**
  68  * *** OMAP4460 *** Applicable for OMAP4470
  69  *
  70  * Below, in sequence, are the Register definitions,
  71  * the bitfields and the temperature definitions for OMAP4460.
  72  */
  73
  74 /**
  75  * OMAP4460 register definitions
  76  *
  77  * Registers are defined as offsets. The offsets are
  78  * relative to FUSE_OPP_BGAP on 4460.
  79  */
  80
  81 /* OMAP4460.FUSE_OPP_BGAP */
  82 #define OMAP4460_FUSE_OPP_BGAP                          0x0
  83
  84 /* OMAP4460.TEMP_SENSOR */
  85 #define OMAP4460_TEMP_SENSOR_CTRL_OFFSET                0xCC
  86
  87 /* OMAP4460.BANDGAP_CTRL */
  88 #define OMAP4460_BGAP_CTRL_OFFSET                       0x118
  89
  90 /* OMAP4460.BANDGAP_COUNTER */
  91 #define OMAP4460_BGAP_COUNTER_OFFSET                    0x11C
  92
  93 /* OMAP4460.BANDGAP_THRESHOLD */
  94 #define OMAP4460_BGAP_THRESHOLD_OFFSET                  0x120
  95
  96 /* OMAP4460.TSHUT_THRESHOLD */
  97 #define OMAP4460_BGAP_TSHUT_OFFSET                      0x124
  98
  99 /* OMAP4460.BANDGAP_STATUS */
 100 #define OMAP4460_BGAP_STATUS_OFFSET                     0x128
 101
 102 /**
 103  * Register bitfields for OMAP4460
 104  *
 105  * All the macros bellow define the required bits for
 106  * controlling temperature on OMAP4460. Bit defines are
 107  * grouped by register.
 108  */
 109 /* OMAP4460.TEMP_SENSOR bits */
 110 #define OMAP4460_BGAP_TEMPSOFF_MASK                     BIT(13)
 111 #define OMAP4460_BGAP_TEMP_SENSOR_SOC_MASK              BIT(11)
 112 #define OMAP4460_BGAP_TEMP_SENSOR_EOCZ_MASK             BIT(10)
 113 #define OMAP4460_BGAP_TEMP_SENSOR_DTEMP_MASK            (0x3ff << 0)
 114
 115 /* OMAP4460.BANDGAP_CTRL bits */
 116 #define OMAP4460_SINGLE_MODE_MASK                       BIT(31)
 117 #define OMAP4460_MASK_HOT_MASK                          BIT(1)
 118 #define OMAP4460_MASK_COLD_MASK                         BIT(0)
 119
 120 /* OMAP4460.BANDGAP_COUNTER bits */
 121 #define OMAP4460_COUNTER_MASK                           (0xffffff << 0)
 122
 123 /* OMAP4460.BANDGAP_THRESHOLD bits */
 124 #define OMAP4460_T_HOT_MASK                             (0x3ff << 16)
 125 #define OMAP4460_T_COLD_MASK                            (0x3ff << 0)
 126
 127 /* OMAP4460.TSHUT_THRESHOLD bits */
 128 #define OMAP4460_TSHUT_HOT_MASK                         (0x3ff << 16)
 129 #define OMAP4460_TSHUT_COLD_MASK                        (0x3ff << 0)
 130
 131 /* OMAP4460.BANDGAP_STATUS bits */
 132 #define OMAP4460_HOT_FLAG_MASK                          BIT(1)
 133 #define OMAP4460_COLD_FLAG_MASK                         BIT(0)
 134
 135 /**
 136  * Temperature limits and thresholds for OMAP4460
 137  *
 138  * All the macros bellow are definitions for handling the
 139  * ADC conversions and representation of temperature limits
 140  * and thresholds for OMAP4460.
 141  */
 142
 143 /* ADC conversion table limits */
 144 #define OMAP4460_ADC_START_VALUE                        530
 145 #define OMAP4460_ADC_END_VALUE                          932
 146 /* bandgap clock limits */
 147 #define OMAP4460_MAX_FREQ                               1500000
 148 #define OMAP4460_MIN_FREQ                               1000000
 149 /* interrupts thresholds */
 150 #define OMAP4460_TSHUT_HOT                              900     /* 122 deg C */
 151 #define OMAP4460_TSHUT_COLD                             895     /* 100 deg C */
 152 #define OMAP4460_T_HOT                                  800     /* 73 deg C */
 153 #define OMAP4460_T_COLD                                 795     /* 71 deg C */
 154
 155 #endif /* __OMAP4XXX_BANDGAP_H */