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Diffstat (limited to 'drivers/thermal/ti-soc-thermal/omap4xxx-bandgap.h')
| -rw-r--r-- | drivers/thermal/ti-soc-thermal/omap4xxx-bandgap.h | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/drivers/thermal/ti-soc-thermal/omap4xxx-bandgap.h b/drivers/thermal/ti-soc-thermal/omap4xxx-bandgap.h new file mode 100644 index 000000000..8a081abce --- /dev/null +++ b/drivers/thermal/ti-soc-thermal/omap4xxx-bandgap.h @@ -0,0 +1,169 @@ +/* + * 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. 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 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_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 +/* 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 */ |