/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * OMAP4xxx bandgap registers, bitfields and temperature definitions
 *
 * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/
 * Contact:
 *   Eduardo Valentin <eduardo.valentin@ti.com>
 */
#ifndef __OMAP4XXX_BANDGAP_H
#define __OMAP4XXX_BANDGAP_H

/**
 * *** OMAP4430 ***
 *
 * Below, in sequence, are the Register definitions,
 * the bitfields and the temperature definitions for OMAP4430.
 */

/**
 * OMAP4430 register definitions
 *
 * Registers are defined as offsets. The offsets are
 * relative to FUSE_OPP_BGAP on 4430.
 */

/* OMAP4430.FUSE_OPP_BGAP */
#define OMAP4430_FUSE_OPP_BGAP                          0x0

/* OMAP4430.TEMP_SENSOR  */
#define OMAP4430_TEMP_SENSOR_CTRL_OFFSET                0xCC

/**
 * Register and bit definitions for OMAP4430
 *
 * All the macros below define the required bits for
 * controlling temperature on OMAP4430. Bit defines are
 * grouped by register.
 */

/* OMAP4430.TEMP_SENSOR bits */
#define OMAP4430_BGAP_TEMPSOFF_MASK                     BIT(12)
#define OMAP4430_BGAP_TSHUT_MASK                        BIT(11)
#define OMAP4430_CONTINUOUS_MODE_MASK                   BIT(10)
#define OMAP4430_BGAP_TEMP_SENSOR_SOC_MASK              BIT(9)
#define OMAP4430_BGAP_TEMP_SENSOR_EOCZ_MASK             BIT(8)
#define OMAP4430_BGAP_TEMP_SENSOR_DTEMP_MASK            (0xff << 0)

/**
 * Temperature limits and thresholds for OMAP4430
 *
 * All the macros below are definitions for handling the
 * ADC conversions and representation of temperature limits
 * and thresholds for OMAP4430.
 */

/*
 * ADC conversion table limits. Ignore values outside the TRM listed
 * range to avoid bogus thermal shutdowns. See omap4430 TRM chapter
 * "18.4.10.2.3 ADC Codes Versus Temperature".
 */
#define OMAP4430_ADC_START_VALUE                        13
#define OMAP4430_ADC_END_VALUE                          107
/* bandgap clock limits (no control on 4430) */
#define OMAP4430_MAX_FREQ                               32768
#define OMAP4430_MIN_FREQ                               32768

/**
 * *** OMAP4460 *** Applicable for OMAP4470
 *
 * Below, in sequence, are the Register definitions,
 * the bitfields and the temperature definitions for OMAP4460.
 */

/**
 * OMAP4460 register definitions
 *
 * Registers are defined as offsets. The offsets are
 * relative to FUSE_OPP_BGAP on 4460.
 */

/* OMAP4460.FUSE_OPP_BGAP */
#define OMAP4460_FUSE_OPP_BGAP                          0x0

/* OMAP4460.TEMP_SENSOR */
#define OMAP4460_TEMP_SENSOR_CTRL_OFFSET                0xCC

/* OMAP4460.BANDGAP_CTRL */
#define OMAP4460_BGAP_CTRL_OFFSET                       0x118

/* OMAP4460.BANDGAP_COUNTER */
#define OMAP4460_BGAP_COUNTER_OFFSET                    0x11C

/* OMAP4460.BANDGAP_THRESHOLD */
#define OMAP4460_BGAP_THRESHOLD_OFFSET                  0x120

/* OMAP4460.TSHUT_THRESHOLD */
#define OMAP4460_BGAP_TSHUT_OFFSET                      0x124

/* OMAP4460.BANDGAP_STATUS */
#define OMAP4460_BGAP_STATUS_OFFSET                     0x128

/**
 * Register bitfields for OMAP4460
 *
 * All the macros below define the required bits for
 * controlling temperature on OMAP4460. Bit defines are
 * grouped by register.
 */
/* OMAP4460.TEMP_SENSOR bits */
#define OMAP4460_BGAP_TEMPSOFF_MASK                     BIT(13)
#define OMAP4460_BGAP_TEMP_SENSOR_SOC_MASK              BIT(11)
#define OMAP4460_BGAP_TEMP_SENSOR_EOCZ_MASK             BIT(10)
#define OMAP4460_BGAP_TEMP_SENSOR_DTEMP_MASK            (0x3ff << 0)

/* OMAP4460.BANDGAP_CTRL bits */
#define OMAP4460_CONTINUOUS_MODE_MASK                   BIT(31)
#define OMAP4460_MASK_HOT_MASK                          BIT(1)
#define OMAP4460_MASK_COLD_MASK                         BIT(0)

/* OMAP4460.BANDGAP_COUNTER bits */
#define OMAP4460_COUNTER_MASK                           (0xffffff << 0)

/* OMAP4460.BANDGAP_THRESHOLD bits */
#define OMAP4460_T_HOT_MASK                             (0x3ff << 16)
#define OMAP4460_T_COLD_MASK                            (0x3ff << 0)

/* OMAP4460.TSHUT_THRESHOLD bits */
#define OMAP4460_TSHUT_HOT_MASK                         (0x3ff << 16)
#define OMAP4460_TSHUT_COLD_MASK                        (0x3ff << 0)

/* OMAP4460.BANDGAP_STATUS bits */
#define OMAP4460_HOT_FLAG_MASK                          BIT(1)
#define OMAP4460_COLD_FLAG_MASK                         BIT(0)

/**
 * Temperature limits and thresholds for OMAP4460
 *
 * All the macros below are definitions for handling the
 * ADC conversions and representation of temperature limits
 * and thresholds for OMAP4460.
 */

/* ADC conversion table limits */
#define OMAP4460_ADC_START_VALUE                        530
#define OMAP4460_ADC_END_VALUE                          932
/* bandgap clock limits */
#define OMAP4460_MAX_FREQ                               1500000
#define OMAP4460_MIN_FREQ                               1000000
/* interrupts thresholds */
#define OMAP4460_TSHUT_HOT                              900     /* 122 deg C */
#define OMAP4460_TSHUT_COLD                             895     /* 100 deg C */
#define OMAP4460_T_HOT                                  800     /* 73 deg C */
#define OMAP4460_T_COLD                                 795     /* 71 deg C */

#endif /* __OMAP4XXX_BANDGAP_H */