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

   1 /*
   2  * OMAP4xxx bandgap registers, bitfields and temperature definitions
   3  *
   4  * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/
   5  * Contact:
   6  *   Eduardo Valentin <eduardo.valentin@ti.com>
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License
  10  * version 2 as published by the Free Software Foundation.
  11  *
  12  * This program is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  20  * 02110-1301 USA
  21  *
  22  */
  23 #ifndef __OMAP4XXX_BANDGAP_H
  24 #define __OMAP4XXX_BANDGAP_H
  25
  26 /**
  27  * *** OMAP4430 ***
  28  *
  29  * Below, in sequence, are the Register definitions,
  30  * the bitfields and the temperature definitions for OMAP4430.
  31  */
  32
  33 /**
  34  * OMAP4430 register definitions
  35  *
  36  * Registers are defined as offsets. The offsets are
  37  * relative to FUSE_OPP_BGAP on 4430.
  38  */
  39
  40 /* OMAP4430.FUSE_OPP_BGAP */
  41 #define OMAP4430_FUSE_OPP_BGAP                          0x0
  42
  43 /* OMAP4430.TEMP_SENSOR  */
  44 #define OMAP4430_TEMP_SENSOR_CTRL_OFFSET                0xCC
  45
  46 /**
  47  * Register and bit definitions for OMAP4430
  48  *
  49  * All the macros bellow define the required bits for
  50  * controlling temperature on OMAP4430. Bit defines are
  51  * grouped by register.
  52  */
  53
  54 /* OMAP4430.TEMP_SENSOR bits */
  55 #define OMAP4430_BGAP_TEMPSOFF_MASK                     BIT(12)
  56 #define OMAP4430_BGAP_TSHUT_MASK                        BIT(11)
  57 #define OMAP4430_SINGLE_MODE_MASK                       BIT(10)
  58 #define OMAP4430_BGAP_TEMP_SENSOR_SOC_MASK              BIT(9)
  59 #define OMAP4430_BGAP_TEMP_SENSOR_EOCZ_MASK             BIT(8)
  60 #define OMAP4430_BGAP_TEMP_SENSOR_DTEMP_MASK            (0xff << 0)
  61
  62 /**
  63  * Temperature limits and thresholds for OMAP4430
  64  *
  65  * All the macros bellow are definitions for handling the
  66  * ADC conversions and representation of temperature limits
  67  * and thresholds for OMAP4430.
  68  */
  69
  70 /* ADC conversion table limits */
  71 #define OMAP4430_ADC_START_VALUE                        0
  72 #define OMAP4430_ADC_END_VALUE                          127
  73 /* bandgap clock limits (no control on 4430) */
  74 #define OMAP4430_MAX_FREQ                               32768
  75 #define OMAP4430_MIN_FREQ                               32768
  76 /* sensor limits */
  77 #define OMAP4430_MIN_TEMP                               -40000
  78 #define OMAP4430_MAX_TEMP                               125000
  79 #define OMAP4430_HYST_VAL                               5000
  80
  81 /**
  82  * *** OMAP4460 *** Applicable for OMAP4470
  83  *
  84  * Below, in sequence, are the Register definitions,
  85  * the bitfields and the temperature definitions for OMAP4460.
  86  */
  87
  88 /**
  89  * OMAP4460 register definitions
  90  *
  91  * Registers are defined as offsets. The offsets are
  92  * relative to FUSE_OPP_BGAP on 4460.
  93  */
  94
  95 /* OMAP4460.FUSE_OPP_BGAP */
  96 #define OMAP4460_FUSE_OPP_BGAP                          0x0
  97
  98 /* OMAP4460.TEMP_SENSOR */
  99 #define OMAP4460_TEMP_SENSOR_CTRL_OFFSET                0xCC
 100
 101 /* OMAP4460.BANDGAP_CTRL */
 102 #define OMAP4460_BGAP_CTRL_OFFSET                       0x118
 103
 104 /* OMAP4460.BANDGAP_COUNTER */
 105 #define OMAP4460_BGAP_COUNTER_OFFSET                    0x11C
 106
 107 /* OMAP4460.BANDGAP_THRESHOLD */
 108 #define OMAP4460_BGAP_THRESHOLD_OFFSET                  0x120
 109
 110 /* OMAP4460.TSHUT_THRESHOLD */
 111 #define OMAP4460_BGAP_TSHUT_OFFSET                      0x124
 112
 113 /* OMAP4460.BANDGAP_STATUS */
 114 #define OMAP4460_BGAP_STATUS_OFFSET                     0x128
 115
 116 /**
 117  * Register bitfields for OMAP4460
 118  *
 119  * All the macros bellow define the required bits for
 120  * controlling temperature on OMAP4460. Bit defines are
 121  * grouped by register.
 122  */
 123 /* OMAP4460.TEMP_SENSOR bits */
 124 #define OMAP4460_BGAP_TEMPSOFF_MASK                     BIT(13)
 125 #define OMAP4460_BGAP_TEMP_SENSOR_SOC_MASK              BIT(11)
 126 #define OMAP4460_BGAP_TEMP_SENSOR_EOCZ_MASK             BIT(10)
 127 #define OMAP4460_BGAP_TEMP_SENSOR_DTEMP_MASK            (0x3ff << 0)
 128
 129 /* OMAP4460.BANDGAP_CTRL bits */
 130 #define OMAP4460_SINGLE_MODE_MASK                       BIT(31)
 131 #define OMAP4460_MASK_HOT_MASK                          BIT(1)
 132 #define OMAP4460_MASK_COLD_MASK                         BIT(0)
 133
 134 /* OMAP4460.BANDGAP_COUNTER bits */
 135 #define OMAP4460_COUNTER_MASK                           (0xffffff << 0)
 136
 137 /* OMAP4460.BANDGAP_THRESHOLD bits */
 138 #define OMAP4460_T_HOT_MASK                             (0x3ff << 16)
 139 #define OMAP4460_T_COLD_MASK                            (0x3ff << 0)
 140
 141 /* OMAP4460.TSHUT_THRESHOLD bits */
 142 #define OMAP4460_TSHUT_HOT_MASK                         (0x3ff << 16)
 143 #define OMAP4460_TSHUT_COLD_MASK                        (0x3ff << 0)
 144
 145 /* OMAP4460.BANDGAP_STATUS bits */
 146 #define OMAP4460_CLEAN_STOP_MASK                        BIT(3)
 147 #define OMAP4460_BGAP_ALERT_MASK                        BIT(2)
 148 #define OMAP4460_HOT_FLAG_MASK                          BIT(1)
 149 #define OMAP4460_COLD_FLAG_MASK                         BIT(0)
 150
 151 /**
 152  * Temperature limits and thresholds for OMAP4460
 153  *
 154  * All the macros bellow are definitions for handling the
 155  * ADC conversions and representation of temperature limits
 156  * and thresholds for OMAP4460.
 157  */
 158
 159 /* ADC conversion table limits */
 160 #define OMAP4460_ADC_START_VALUE                        530
 161 #define OMAP4460_ADC_END_VALUE                          932
 162 /* bandgap clock limits */
 163 #define OMAP4460_MAX_FREQ                               1500000
 164 #define OMAP4460_MIN_FREQ                               1000000
 165 /* sensor limits */
 166 #define OMAP4460_MIN_TEMP                               -40000
 167 #define OMAP4460_MAX_TEMP                               123000
 168 #define OMAP4460_HYST_VAL                               5000
 169 /* interrupts thresholds */
 170 #define OMAP4460_TSHUT_HOT                              900     /* 122 deg C */
 171 #define OMAP4460_TSHUT_COLD                             895     /* 100 deg C */
 172 #define OMAP4460_T_HOT                                  800     /* 73 deg C */
 173 #define OMAP4460_T_COLD                                 795     /* 71 deg C */
 174
 175 #endif /* __OMAP4XXX_BANDGAP_H */