omap4xxx-bandgap.h
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/*
* OMAP4xxx bandgap registers, bitfields and temperature definitions
*
* Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/
* Contact:
* Eduardo Valentin <eduardo.valentin@ti.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*
*/
#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 bellow 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_SINGLE_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 bellow are definitions for handling the
* ADC conversions and representation of temperature limits
* and thresholds for OMAP4430.
*/
/* ADC conversion table limits */
#define OMAP4430_ADC_START_VALUE 0
#define OMAP4430_ADC_END_VALUE 127
/* bandgap clock limits (no control on 4430) */
#define OMAP4430_MAX_FREQ 32768
#define OMAP4430_MIN_FREQ 32768
/* sensor limits */
#define OMAP4430_MIN_TEMP -40000
#define OMAP4430_MAX_TEMP 125000
#define OMAP4430_HYST_VAL 5000
/**
* *** 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 bellow 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_SINGLE_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_CLEAN_STOP_MASK BIT(3)
#define OMAP4460_BGAP_ALERT_MASK BIT(2)
#define OMAP4460_HOT_FLAG_MASK BIT(1)
#define OMAP4460_COLD_FLAG_MASK BIT(0)
/**
* Temperature limits and thresholds for OMAP4460
*
* All the macros bellow 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
/* sensor limits */
#define OMAP4460_MIN_TEMP -40000
#define OMAP4460_MAX_TEMP 123000
#define OMAP4460_HYST_VAL 5000
/* 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 */