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 77 /** 78 * *** OMAP4460 *** Applicable for OMAP4470 79 * 80 * Below, in sequence, are the Register definitions, 81 * the bitfields and the temperature definitions for OMAP4460. 82 */ 83 84 /** 85 * OMAP4460 register definitions 86 * 87 * Registers are defined as offsets. The offsets are 88 * relative to FUSE_OPP_BGAP on 4460. 89 */ 90 91 /* OMAP4460.FUSE_OPP_BGAP */ 92 #define OMAP4460_FUSE_OPP_BGAP 0x0 93 94 /* OMAP4460.TEMP_SENSOR */ 95 #define OMAP4460_TEMP_SENSOR_CTRL_OFFSET 0xCC 96 97 /* OMAP4460.BANDGAP_CTRL */ 98 #define OMAP4460_BGAP_CTRL_OFFSET 0x118 99 100 /* OMAP4460.BANDGAP_COUNTER */ 101 #define OMAP4460_BGAP_COUNTER_OFFSET 0x11C 102 103 /* OMAP4460.BANDGAP_THRESHOLD */ 104 #define OMAP4460_BGAP_THRESHOLD_OFFSET 0x120 105 106 /* OMAP4460.TSHUT_THRESHOLD */ 107 #define OMAP4460_BGAP_TSHUT_OFFSET 0x124 108 109 /* OMAP4460.BANDGAP_STATUS */ 110 #define OMAP4460_BGAP_STATUS_OFFSET 0x128 111 112 /** 113 * Register bitfields for OMAP4460 114 * 115 * All the macros bellow define the required bits for 116 * controlling temperature on OMAP4460. Bit defines are 117 * grouped by register. 118 */ 119 /* OMAP4460.TEMP_SENSOR bits */ 120 #define OMAP4460_BGAP_TEMPSOFF_MASK BIT(13) 121 #define OMAP4460_BGAP_TEMP_SENSOR_SOC_MASK BIT(11) 122 #define OMAP4460_BGAP_TEMP_SENSOR_EOCZ_MASK BIT(10) 123 #define OMAP4460_BGAP_TEMP_SENSOR_DTEMP_MASK (0x3ff << 0) 124 125 /* OMAP4460.BANDGAP_CTRL bits */ 126 #define OMAP4460_SINGLE_MODE_MASK BIT(31) 127 #define OMAP4460_MASK_HOT_MASK BIT(1) 128 #define OMAP4460_MASK_COLD_MASK BIT(0) 129 130 /* OMAP4460.BANDGAP_COUNTER bits */ 131 #define OMAP4460_COUNTER_MASK (0xffffff << 0) 132 133 /* OMAP4460.BANDGAP_THRESHOLD bits */ 134 #define OMAP4460_T_HOT_MASK (0x3ff << 16) 135 #define OMAP4460_T_COLD_MASK (0x3ff << 0) 136 137 /* OMAP4460.TSHUT_THRESHOLD bits */ 138 #define OMAP4460_TSHUT_HOT_MASK (0x3ff << 16) 139 #define OMAP4460_TSHUT_COLD_MASK (0x3ff << 0) 140 141 /* OMAP4460.BANDGAP_STATUS bits */ 142 #define OMAP4460_HOT_FLAG_MASK BIT(1) 143 #define OMAP4460_COLD_FLAG_MASK BIT(0) 144 145 /** 146 * Temperature limits and thresholds for OMAP4460 147 * 148 * All the macros bellow are definitions for handling the 149 * ADC conversions and representation of temperature limits 150 * and thresholds for OMAP4460. 151 */ 152 153 /* ADC conversion table limits */ 154 #define OMAP4460_ADC_START_VALUE 530 155 #define OMAP4460_ADC_END_VALUE 932 156 /* bandgap clock limits */ 157 #define OMAP4460_MAX_FREQ 1500000 158 #define OMAP4460_MIN_FREQ 1000000 159 /* interrupts thresholds */ 160 #define OMAP4460_TSHUT_HOT 900 /* 122 deg C */ 161 #define OMAP4460_TSHUT_COLD 895 /* 100 deg C */ 162 #define OMAP4460_T_HOT 800 /* 73 deg C */ 163 #define OMAP4460_T_COLD 795 /* 71 deg C */ 164 165 #endif /* __OMAP4XXX_BANDGAP_H */ 166