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 below 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_CONTINUOUS_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 below 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 below 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_CONTINUOUS_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 below 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 */