diff options
author | Eduardo Valentin <eduardo.valentin@ti.com> | 2013-05-15 15:46:00 +0000 |
---|---|---|
committer | Zhang Rui <rui.zhang@intel.com> | 2013-05-28 10:40:37 +0800 |
commit | eb982001dbd8546f273f444868a1031cc78b4250 (patch) | |
tree | 08547bb02ed69dec61a69511b66e1ee6ac8e49d1 /drivers/thermal | |
parent | c240a539df4e2d50f86e2f31813ff6b7334cd493 (diff) |
thermal: introduce TI SoC thermal driver
This patch moves the ti-soc-thermal driver out of
the staging tree to the thermal tree.
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Rob Landley <rob@landley.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Eduardo Valentin <eduardo.valentin@ti.com>
Cc: J Keerthy <j-keerthy@ti.com>
Cc: Radhesh Fadnis <radhesh.fadnis@ti.com>
Cc: Cyril Roelandt <tipecaml@gmail.com>
Cc: devicetree-discuss@lists.ozlabs.org
Cc: linux-doc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: devel@driverdev.osuosl.org
Cc: linux-pm@vger.kernel.org
Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Diffstat (limited to 'drivers/thermal')
-rw-r--r-- | drivers/thermal/Kconfig | 3 | ||||
-rw-r--r-- | drivers/thermal/Makefile | 2 | ||||
-rw-r--r-- | drivers/thermal/ti-soc-thermal/Kconfig | 48 | ||||
-rw-r--r-- | drivers/thermal/ti-soc-thermal/Makefile | 5 | ||||
-rw-r--r-- | drivers/thermal/ti-soc-thermal/TODO | 12 | ||||
-rw-r--r-- | drivers/thermal/ti-soc-thermal/omap4-thermal-data.c | 267 | ||||
-rw-r--r-- | drivers/thermal/ti-soc-thermal/omap4xxx-bandgap.h | 175 | ||||
-rw-r--r-- | drivers/thermal/ti-soc-thermal/omap5-thermal-data.c | 359 | ||||
-rw-r--r-- | drivers/thermal/ti-soc-thermal/omap5xxx-bandgap.h | 200 | ||||
-rw-r--r-- | drivers/thermal/ti-soc-thermal/ti-bandgap.c | 1546 | ||||
-rw-r--r-- | drivers/thermal/ti-soc-thermal/ti-bandgap.h | 403 | ||||
-rw-r--r-- | drivers/thermal/ti-soc-thermal/ti-thermal-common.c | 367 | ||||
-rw-r--r-- | drivers/thermal/ti-soc-thermal/ti-thermal.h | 117 |
13 files changed, 3503 insertions, 1 deletions
diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig index 5e3c02554d99..7205c70a46a3 100644 --- a/drivers/thermal/Kconfig +++ b/drivers/thermal/Kconfig @@ -169,4 +169,7 @@ config INTEL_POWERCLAMP enforce idle time which results in more package C-state residency. The user interface is exposed via generic thermal framework. +menu "Texas Instruments thermal drivers" +source "drivers/thermal/ti-soc-thermal/Kconfig" +endmenu endif diff --git a/drivers/thermal/Makefile b/drivers/thermal/Makefile index c054d410ac3f..85693941fda0 100644 --- a/drivers/thermal/Makefile +++ b/drivers/thermal/Makefile @@ -23,4 +23,4 @@ obj-$(CONFIG_DB8500_THERMAL) += db8500_thermal.o obj-$(CONFIG_ARMADA_THERMAL) += armada_thermal.o obj-$(CONFIG_DB8500_CPUFREQ_COOLING) += db8500_cpufreq_cooling.o obj-$(CONFIG_INTEL_POWERCLAMP) += intel_powerclamp.o - +obj-$(CONFIG_TI_SOC_THERMAL) += ti-soc-thermal/ diff --git a/drivers/thermal/ti-soc-thermal/Kconfig b/drivers/thermal/ti-soc-thermal/Kconfig new file mode 100644 index 000000000000..e81375fb2155 --- /dev/null +++ b/drivers/thermal/ti-soc-thermal/Kconfig @@ -0,0 +1,48 @@ +config TI_SOC_THERMAL + tristate "Texas Instruments SoCs temperature sensor driver" + depends on THERMAL + depends on ARCH_HAS_BANDGAP + help + If you say yes here you get support for the Texas Instruments + OMAP4460+ on die bandgap temperature sensor support. The register + set is part of system control module. + + This includes alert interrupts generation and also the TSHUT + support. + +config TI_THERMAL + bool "Texas Instruments SoCs thermal framework support" + depends on TI_SOC_THERMAL + depends on CPU_THERMAL + help + If you say yes here you want to get support for generic thermal + framework for the Texas Instruments on die bandgap temperature sensor. + + This includes trip points definitions, extrapolation rules and + CPU cooling device bindings. + +config OMAP4_THERMAL + bool "Texas Instruments OMAP4 thermal support" + depends on TI_SOC_THERMAL + depends on ARCH_OMAP4 + help + If you say yes here you get thermal support for the Texas Instruments + OMAP4 SoC family. The current chip supported are: + - OMAP4430 + - OMAP4460 + - OMAP4470 + + This includes alert interrupts generation and also the TSHUT + support. + +config OMAP5_THERMAL + bool "Texas Instruments OMAP5 thermal support" + depends on TI_SOC_THERMAL + depends on SOC_OMAP5 + help + If you say yes here you get thermal support for the Texas Instruments + OMAP5 SoC family. The current chip supported are: + - OMAP5430 + + This includes alert interrupts generation and also the TSHUT + support. diff --git a/drivers/thermal/ti-soc-thermal/Makefile b/drivers/thermal/ti-soc-thermal/Makefile new file mode 100644 index 000000000000..0ca034fb419d --- /dev/null +++ b/drivers/thermal/ti-soc-thermal/Makefile @@ -0,0 +1,5 @@ +obj-$(CONFIG_TI_SOC_THERMAL) += ti-soc-thermal.o +ti-soc-thermal-y := ti-bandgap.o +ti-soc-thermal-$(CONFIG_TI_THERMAL) += ti-thermal-common.o +ti-soc-thermal-$(CONFIG_OMAP4_THERMAL) += omap4-thermal-data.o +ti-soc-thermal-$(CONFIG_OMAP5_THERMAL) += omap5-thermal-data.o diff --git a/drivers/thermal/ti-soc-thermal/TODO b/drivers/thermal/ti-soc-thermal/TODO new file mode 100644 index 000000000000..7da787d19241 --- /dev/null +++ b/drivers/thermal/ti-soc-thermal/TODO @@ -0,0 +1,12 @@ +List of TODOs (by Eduardo Valentin) + +on ti-bandgap.c: +- Revisit PM support + +on ti-thermal-common.c/ti-thermal.h: +- Revisit need for locking + +generally: +- make sure this code works on OMAP4430, OMAP4460 and OMAP5430 + +Copy patches to Eduardo Valentin <eduardo.valentin@ti.com> diff --git a/drivers/thermal/ti-soc-thermal/omap4-thermal-data.c b/drivers/thermal/ti-soc-thermal/omap4-thermal-data.c new file mode 100644 index 000000000000..d255d33da9eb --- /dev/null +++ b/drivers/thermal/ti-soc-thermal/omap4-thermal-data.c @@ -0,0 +1,267 @@ +/* + * OMAP4 thermal driver. + * + * Copyright (C) 2011-2012 Texas Instruments Inc. + * Contact: + * Eduardo Valentin <eduardo.valentin@ti.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * 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. + * + */ + +#include "ti-thermal.h" +#include "ti-bandgap.h" +#include "omap4xxx-bandgap.h" + +/* + * OMAP4430 has one instance of thermal sensor for MPU + * need to describe the individual bit fields + */ +static struct temp_sensor_registers +omap4430_mpu_temp_sensor_registers = { + .temp_sensor_ctrl = OMAP4430_TEMP_SENSOR_CTRL_OFFSET, + .bgap_tempsoff_mask = OMAP4430_BGAP_TEMPSOFF_MASK, + .bgap_soc_mask = OMAP4430_BGAP_TEMP_SENSOR_SOC_MASK, + .bgap_eocz_mask = OMAP4430_BGAP_TEMP_SENSOR_EOCZ_MASK, + .bgap_dtemp_mask = OMAP4430_BGAP_TEMP_SENSOR_DTEMP_MASK, + + .bgap_mode_ctrl = OMAP4430_TEMP_SENSOR_CTRL_OFFSET, + .mode_ctrl_mask = OMAP4430_SINGLE_MODE_MASK, + + .bgap_efuse = OMAP4430_FUSE_OPP_BGAP, +}; + +/* Thresholds and limits for OMAP4430 MPU temperature sensor */ +static struct temp_sensor_data omap4430_mpu_temp_sensor_data = { + .min_freq = OMAP4430_MIN_FREQ, + .max_freq = OMAP4430_MAX_FREQ, + .max_temp = OMAP4430_MAX_TEMP, + .min_temp = OMAP4430_MIN_TEMP, + .hyst_val = OMAP4430_HYST_VAL, +}; + +/* + * Temperature values in milli degree celsius + * ADC code values from 530 to 923 + */ +static const int +omap4430_adc_to_temp[OMAP4430_ADC_END_VALUE - OMAP4430_ADC_START_VALUE + 1] = { + -38000, -35000, -34000, -32000, -30000, -28000, -26000, -24000, -22000, + -20000, -18000, -17000, -15000, -13000, -12000, -10000, -8000, -6000, + -5000, -3000, -1000, 0, 2000, 3000, 5000, 6000, 8000, 10000, 12000, + 13000, 15000, 17000, 19000, 21000, 23000, 25000, 27000, 28000, 30000, + 32000, 33000, 35000, 37000, 38000, 40000, 42000, 43000, 45000, 47000, + 48000, 50000, 52000, 53000, 55000, 57000, 58000, 60000, 62000, 64000, + 66000, 68000, 70000, 71000, 73000, 75000, 77000, 78000, 80000, 82000, + 83000, 85000, 87000, 88000, 90000, 92000, 93000, 95000, 97000, 98000, + 100000, 102000, 103000, 105000, 107000, 109000, 111000, 113000, 115000, + 117000, 118000, 120000, 122000, 123000, +}; + +/* OMAP4430 data */ +const struct ti_bandgap_data omap4430_data = { + .features = TI_BANDGAP_FEATURE_MODE_CONFIG | + TI_BANDGAP_FEATURE_CLK_CTRL | + TI_BANDGAP_FEATURE_POWER_SWITCH, + .fclock_name = "bandgap_fclk", + .div_ck_name = "bandgap_fclk", + .conv_table = omap4430_adc_to_temp, + .adc_start_val = OMAP4430_ADC_START_VALUE, + .adc_end_val = OMAP4430_ADC_END_VALUE, + .expose_sensor = ti_thermal_expose_sensor, + .remove_sensor = ti_thermal_remove_sensor, + .sensors = { + { + .registers = &omap4430_mpu_temp_sensor_registers, + .ts_data = &omap4430_mpu_temp_sensor_data, + .domain = "cpu", + .slope = OMAP_GRADIENT_SLOPE_4430, + .constant = OMAP_GRADIENT_CONST_4430, + .slope_pcb = OMAP_GRADIENT_SLOPE_W_PCB_4430, + .constant_pcb = OMAP_GRADIENT_CONST_W_PCB_4430, + .register_cooling = ti_thermal_register_cpu_cooling, + .unregister_cooling = ti_thermal_unregister_cpu_cooling, + }, + }, + .sensor_count = 1, +}; +/* + * OMAP4460 has one instance of thermal sensor for MPU + * need to describe the individual bit fields + */ +static struct temp_sensor_registers +omap4460_mpu_temp_sensor_registers = { + .temp_sensor_ctrl = OMAP4460_TEMP_SENSOR_CTRL_OFFSET, + .bgap_tempsoff_mask = OMAP4460_BGAP_TEMPSOFF_MASK, + .bgap_soc_mask = OMAP4460_BGAP_TEMP_SENSOR_SOC_MASK, + .bgap_eocz_mask = OMAP4460_BGAP_TEMP_SENSOR_EOCZ_MASK, + .bgap_dtemp_mask = OMAP4460_BGAP_TEMP_SENSOR_DTEMP_MASK, + + .bgap_mask_ctrl = OMAP4460_BGAP_CTRL_OFFSET, + .mask_hot_mask = OMAP4460_MASK_HOT_MASK, + .mask_cold_mask = OMAP4460_MASK_COLD_MASK, + + .bgap_mode_ctrl = OMAP4460_BGAP_CTRL_OFFSET, + .mode_ctrl_mask = OMAP4460_SINGLE_MODE_MASK, + + .bgap_counter = OMAP4460_BGAP_COUNTER_OFFSET, + .counter_mask = OMAP4460_COUNTER_MASK, + + .bgap_threshold = OMAP4460_BGAP_THRESHOLD_OFFSET, + .threshold_thot_mask = OMAP4460_T_HOT_MASK, + .threshold_tcold_mask = OMAP4460_T_COLD_MASK, + + .tshut_threshold = OMAP4460_BGAP_TSHUT_OFFSET, + .tshut_hot_mask = OMAP4460_TSHUT_HOT_MASK, + .tshut_cold_mask = OMAP4460_TSHUT_COLD_MASK, + + .bgap_status = OMAP4460_BGAP_STATUS_OFFSET, + .status_clean_stop_mask = OMAP4460_CLEAN_STOP_MASK, + .status_bgap_alert_mask = OMAP4460_BGAP_ALERT_MASK, + .status_hot_mask = OMAP4460_HOT_FLAG_MASK, + .status_cold_mask = OMAP4460_COLD_FLAG_MASK, + + .bgap_efuse = OMAP4460_FUSE_OPP_BGAP, +}; + +/* Thresholds and limits for OMAP4460 MPU temperature sensor */ +static struct temp_sensor_data omap4460_mpu_temp_sensor_data = { + .tshut_hot = OMAP4460_TSHUT_HOT, + .tshut_cold = OMAP4460_TSHUT_COLD, + .t_hot = OMAP4460_T_HOT, + .t_cold = OMAP4460_T_COLD, + .min_freq = OMAP4460_MIN_FREQ, + .max_freq = OMAP4460_MAX_FREQ, + .max_temp = OMAP4460_MAX_TEMP, + .min_temp = OMAP4460_MIN_TEMP, + .hyst_val = OMAP4460_HYST_VAL, + .update_int1 = 1000, + .update_int2 = 2000, +}; + +/* + * Temperature values in milli degree celsius + * ADC code values from 530 to 923 + */ +static const int +omap4460_adc_to_temp[OMAP4460_ADC_END_VALUE - OMAP4460_ADC_START_VALUE + 1] = { + -40000, -40000, -40000, -40000, -39800, -39400, -39000, -38600, -38200, + -37800, -37300, -36800, -36400, -36000, -35600, -35200, -34800, + -34300, -33800, -33400, -33000, -32600, -32200, -31800, -31300, + -30800, -30400, -30000, -29600, -29200, -28700, -28200, -27800, + -27400, -27000, -26600, -26200, -25700, -25200, -24800, -24400, + -24000, -23600, -23200, -22700, -22200, -21800, -21400, -21000, + -20600, -20200, -19700, -19200, -18800, -18400, -18000, -17600, + -17200, -16700, -16200, -15800, -15400, -15000, -14600, -14200, + -13700, -13200, -12800, -12400, -12000, -11600, -11200, -10700, + -10200, -9800, -9400, -9000, -8600, -8200, -7700, -7200, -6800, + -6400, -6000, -5600, -5200, -4800, -4300, -3800, -3400, -3000, + -2600, -2200, -1800, -1300, -800, -400, 0, 400, 800, 1200, 1600, + 2100, 2600, 3000, 3400, 3800, 4200, 4600, 5100, 5600, 6000, 6400, + 6800, 7200, 7600, 8000, 8500, 9000, 9400, 9800, 10200, 10600, 11000, + 11400, 11900, 12400, 12800, 13200, 13600, 14000, 14400, 14800, + 15300, 15800, 16200, 16600, 17000, 17400, 17800, 18200, 18700, + 19200, 19600, 20000, 20400, 20800, 21200, 21600, 22100, 22600, + 23000, 23400, 23800, 24200, 24600, 25000, 25400, 25900, 26400, + 26800, 27200, 27600, 28000, 28400, 28800, 29300, 29800, 30200, + 30600, 31000, 31400, 31800, 32200, 32600, 33100, 33600, 34000, + 34400, 34800, 35200, 35600, 36000, 36400, 36800, 37300, 37800, + 38200, 38600, 39000, 39400, 39800, 40200, 40600, 41100, 41600, + 42000, 42400, 42800, 43200, 43600, 44000, 44400, 44800, 45300, + 45800, 46200, 46600, 47000, 47400, 47800, 48200, 48600, 49000, + 49500, 50000, 50400, 50800, 51200, 51600, 52000, 52400, 52800, + 53200, 53700, 54200, 54600, 55000, 55400, 55800, 56200, 56600, + 57000, 57400, 57800, 58200, 58700, 59200, 59600, 60000, 60400, + 60800, 61200, 61600, 62000, 62400, 62800, 63300, 63800, 64200, + 64600, 65000, 65400, 65800, 66200, 66600, 67000, 67400, 67800, + 68200, 68700, 69200, 69600, 70000, 70400, 70800, 71200, 71600, + 72000, 72400, 72800, 73200, 73600, 74100, 74600, 75000, 75400, + 75800, 76200, 76600, 77000, 77400, 77800, 78200, 78600, 79000, + 79400, 79800, 80300, 80800, 81200, 81600, 82000, 82400, 82800, + 83200, 83600, 84000, 84400, 84800, 85200, 85600, 86000, 86400, + 86800, 87300, 87800, 88200, 88600, 89000, 89400, 89800, 90200, + 90600, 91000, 91400, 91800, 92200, 92600, 93000, 93400, 93800, + 94200, 94600, 95000, 95500, 96000, 96400, 96800, 97200, 97600, + 98000, 98400, 98800, 99200, 99600, 100000, 100400, 100800, 101200, + 101600, 102000, 102400, 102800, 103200, 103600, 104000, 104400, + 104800, 105200, 105600, 106100, 106600, 107000, 107400, 107800, + 108200, 108600, 109000, 109400, 109800, 110200, 110600, 111000, + 111400, 111800, 112200, 112600, 113000, 113400, 113800, 114200, + 114600, 115000, 115400, 115800, 116200, 116600, 117000, 117400, + 117800, 118200, 118600, 119000, 119400, 119800, 120200, 120600, + 121000, 121400, 121800, 122200, 122600, 123000, 123400, 123800, 124200, + 124600, 124900, 125000, 125000, 125000, 125000 +}; + +/* OMAP4460 data */ +const struct ti_bandgap_data omap4460_data = { + .features = TI_BANDGAP_FEATURE_TSHUT | + TI_BANDGAP_FEATURE_TSHUT_CONFIG | + TI_BANDGAP_FEATURE_TALERT | + TI_BANDGAP_FEATURE_MODE_CONFIG | + TI_BANDGAP_FEATURE_POWER_SWITCH | + TI_BANDGAP_FEATURE_CLK_CTRL | + TI_BANDGAP_FEATURE_COUNTER, + .fclock_name = "bandgap_ts_fclk", + .div_ck_name = "div_ts_ck", + .conv_table = omap4460_adc_to_temp, + .adc_start_val = OMAP4460_ADC_START_VALUE, + .adc_end_val = OMAP4460_ADC_END_VALUE, + .expose_sensor = ti_thermal_expose_sensor, + .remove_sensor = ti_thermal_remove_sensor, + .report_temperature = ti_thermal_report_sensor_temperature, + .sensors = { + { + .registers = &omap4460_mpu_temp_sensor_registers, + .ts_data = &omap4460_mpu_temp_sensor_data, + .domain = "cpu", + .slope = OMAP_GRADIENT_SLOPE_4460, + .constant = OMAP_GRADIENT_CONST_4460, + .slope_pcb = OMAP_GRADIENT_SLOPE_W_PCB_4460, + .constant_pcb = OMAP_GRADIENT_CONST_W_PCB_4460, + .register_cooling = ti_thermal_register_cpu_cooling, + .unregister_cooling = ti_thermal_unregister_cpu_cooling, + }, + }, + .sensor_count = 1, +}; + +/* OMAP4470 data */ +const struct ti_bandgap_data omap4470_data = { + .features = TI_BANDGAP_FEATURE_TSHUT | + TI_BANDGAP_FEATURE_TSHUT_CONFIG | + TI_BANDGAP_FEATURE_TALERT | + TI_BANDGAP_FEATURE_MODE_CONFIG | + TI_BANDGAP_FEATURE_POWER_SWITCH | + TI_BANDGAP_FEATURE_CLK_CTRL | + TI_BANDGAP_FEATURE_COUNTER, + .fclock_name = "bandgap_ts_fclk", + .div_ck_name = "div_ts_ck", + .conv_table = omap4460_adc_to_temp, + .adc_start_val = OMAP4460_ADC_START_VALUE, + .adc_end_val = OMAP4460_ADC_END_VALUE, + .expose_sensor = ti_thermal_expose_sensor, + .remove_sensor = ti_thermal_remove_sensor, + .report_temperature = ti_thermal_report_sensor_temperature, + .sensors = { + { + .registers = &omap4460_mpu_temp_sensor_registers, + .ts_data = &omap4460_mpu_temp_sensor_data, + .domain = "cpu", + .slope = OMAP_GRADIENT_SLOPE_4470, + .constant = OMAP_GRADIENT_CONST_4470, + .slope_pcb = OMAP_GRADIENT_SLOPE_W_PCB_4470, + .constant_pcb = OMAP_GRADIENT_CONST_W_PCB_4470, + .register_cooling = ti_thermal_register_cpu_cooling, + .unregister_cooling = ti_thermal_unregister_cpu_cooling, + }, + }, + .sensor_count = 1, +}; 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 000000000000..6f2de3a3356d --- /dev/null +++ b/drivers/thermal/ti-soc-thermal/omap4xxx-bandgap.h @@ -0,0 +1,175 @@ +/* + * 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 */ diff --git a/drivers/thermal/ti-soc-thermal/omap5-thermal-data.c b/drivers/thermal/ti-soc-thermal/omap5-thermal-data.c new file mode 100644 index 000000000000..eff0c80fd4af --- /dev/null +++ b/drivers/thermal/ti-soc-thermal/omap5-thermal-data.c @@ -0,0 +1,359 @@ +/* + * OMAP5 thermal driver. + * + * Copyright (C) 2011-2012 Texas Instruments Inc. + * Contact: + * Eduardo Valentin <eduardo.valentin@ti.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * 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. + * + */ + +#include "ti-thermal.h" +#include "ti-bandgap.h" +#include "omap5xxx-bandgap.h" + +/* + * OMAP5430 has three instances of thermal sensor for MPU, GPU & CORE, + * need to describe the individual registers and bit fields. + */ + +/* + * OMAP5430 MPU thermal sensor register offset and bit-fields + */ +static struct temp_sensor_registers +omap5430_mpu_temp_sensor_registers = { + .temp_sensor_ctrl = OMAP5430_TEMP_SENSOR_MPU_OFFSET, + .bgap_tempsoff_mask = OMAP5430_BGAP_TEMPSOFF_MASK, + .bgap_eocz_mask = OMAP5430_BGAP_TEMP_SENSOR_EOCZ_MASK, + .bgap_dtemp_mask = OMAP5430_BGAP_TEMP_SENSOR_DTEMP_MASK, + + .bgap_mask_ctrl = OMAP5430_BGAP_CTRL_OFFSET, + .mask_hot_mask = OMAP5430_MASK_HOT_MPU_MASK, + .mask_cold_mask = OMAP5430_MASK_COLD_MPU_MASK, + .mask_sidlemode_mask = OMAP5430_MASK_SIDLEMODE_MASK, + .mask_counter_delay_mask = OMAP5430_MASK_COUNTER_DELAY_MASK, + .mask_freeze_mask = OMAP5430_MASK_FREEZE_MPU_MASK, + .mask_clear_mask = OMAP5430_MASK_CLEAR_MPU_MASK, + .mask_clear_accum_mask = OMAP5430_MASK_CLEAR_ACCUM_MPU_MASK, + + + .bgap_counter = OMAP5430_BGAP_CTRL_OFFSET, + .counter_mask = OMAP5430_COUNTER_MASK, + + .bgap_threshold = OMAP5430_BGAP_THRESHOLD_MPU_OFFSET, + .threshold_thot_mask = OMAP5430_T_HOT_MASK, + .threshold_tcold_mask = OMAP5430_T_COLD_MASK, + + .tshut_threshold = OMAP5430_BGAP_TSHUT_MPU_OFFSET, + .tshut_hot_mask = OMAP5430_TSHUT_HOT_MASK, + .tshut_cold_mask = OMAP5430_TSHUT_COLD_MASK, + + .bgap_status = OMAP5430_BGAP_STATUS_OFFSET, + .status_clean_stop_mask = 0x0, + .status_bgap_alert_mask = OMAP5430_BGAP_ALERT_MASK, + .status_hot_mask = OMAP5430_HOT_MPU_FLAG_MASK, + .status_cold_mask = OMAP5430_COLD_MPU_FLAG_MASK, + + .bgap_cumul_dtemp = OMAP5430_BGAP_CUMUL_DTEMP_MPU_OFFSET, + .ctrl_dtemp_0 = OMAP5430_BGAP_DTEMP_MPU_0_OFFSET, + .ctrl_dtemp_1 = OMAP5430_BGAP_DTEMP_MPU_1_OFFSET, + .ctrl_dtemp_2 = OMAP5430_BGAP_DTEMP_MPU_2_OFFSET, + .ctrl_dtemp_3 = OMAP5430_BGAP_DTEMP_MPU_3_OFFSET, + .ctrl_dtemp_4 = OMAP5430_BGAP_DTEMP_MPU_4_OFFSET, + .bgap_efuse = OMAP5430_FUSE_OPP_BGAP_MPU, +}; + +/* + * OMAP5430 GPU thermal sensor register offset and bit-fields + */ +static struct temp_sensor_registers +omap5430_gpu_temp_sensor_registers = { + .temp_sensor_ctrl = OMAP5430_TEMP_SENSOR_GPU_OFFSET, + .bgap_tempsoff_mask = OMAP5430_BGAP_TEMPSOFF_MASK, + .bgap_eocz_mask = OMAP5430_BGAP_TEMP_SENSOR_EOCZ_MASK, + .bgap_dtemp_mask = OMAP5430_BGAP_TEMP_SENSOR_DTEMP_MASK, + + .bgap_mask_ctrl = OMAP5430_BGAP_CTRL_OFFSET, + .mask_hot_mask = OMAP5430_MASK_HOT_GPU_MASK, + .mask_cold_mask = OMAP5430_MASK_COLD_GPU_MASK, + .mask_sidlemode_mask = OMAP5430_MASK_SIDLEMODE_MASK, + .mask_counter_delay_mask = OMAP5430_MASK_COUNTER_DELAY_MASK, + .mask_freeze_mask = OMAP5430_MASK_FREEZE_GPU_MASK, + .mask_clear_mask = OMAP5430_MASK_CLEAR_GPU_MASK, + .mask_clear_accum_mask = OMAP5430_MASK_CLEAR_ACCUM_GPU_MASK, + + .bgap_counter = OMAP5430_BGAP_CTRL_OFFSET, + .counter_mask = OMAP5430_COUNTER_MASK, + + .bgap_threshold = OMAP5430_BGAP_THRESHOLD_GPU_OFFSET, + .threshold_thot_mask = OMAP5430_T_HOT_MASK, + .threshold_tcold_mask = OMAP5430_T_COLD_MASK, + + .tshut_threshold = OMAP5430_BGAP_TSHUT_GPU_OFFSET, + .tshut_hot_mask = OMAP5430_TSHUT_HOT_MASK, + .tshut_cold_mask = OMAP5430_TSHUT_COLD_MASK, + + .bgap_status = OMAP5430_BGAP_STATUS_OFFSET, + .status_clean_stop_mask = 0x0, + .status_bgap_alert_mask = OMAP5430_BGAP_ALERT_MASK, + .status_hot_mask = OMAP5430_HOT_GPU_FLAG_MASK, + .status_cold_mask = OMAP5430_COLD_GPU_FLAG_MASK, + + .bgap_cumul_dtemp = OMAP5430_BGAP_CUMUL_DTEMP_GPU_OFFSET, + .ctrl_dtemp_0 = OMAP5430_BGAP_DTEMP_GPU_0_OFFSET, + .ctrl_dtemp_1 = OMAP5430_BGAP_DTEMP_GPU_1_OFFSET, + .ctrl_dtemp_2 = OMAP5430_BGAP_DTEMP_GPU_2_OFFSET, + .ctrl_dtemp_3 = OMAP5430_BGAP_DTEMP_GPU_3_OFFSET, + .ctrl_dtemp_4 = OMAP5430_BGAP_DTEMP_GPU_4_OFFSET, + + .bgap_efuse = OMAP5430_FUSE_OPP_BGAP_GPU, +}; + +/* + * OMAP5430 CORE thermal sensor register offset and bit-fields + */ +static struct temp_sensor_registers +omap5430_core_temp_sensor_registers = { + .temp_sensor_ctrl = OMAP5430_TEMP_SENSOR_CORE_OFFSET, + .bgap_tempsoff_mask = OMAP5430_BGAP_TEMPSOFF_MASK, + .bgap_eocz_mask = OMAP5430_BGAP_TEMP_SENSOR_EOCZ_MASK, + .bgap_dtemp_mask = OMAP5430_BGAP_TEMP_SENSOR_DTEMP_MASK, + + .bgap_mask_ctrl = OMAP5430_BGAP_CTRL_OFFSET, + .mask_hot_mask = OMAP5430_MASK_HOT_CORE_MASK, + .mask_cold_mask = OMAP5430_MASK_COLD_CORE_MASK, + .mask_sidlemode_mask = OMAP5430_MASK_SIDLEMODE_MASK, + .mask_counter_delay_mask = OMAP5430_MASK_COUNTER_DELAY_MASK, + .mask_freeze_mask = OMAP5430_MASK_FREEZE_CORE_MASK, + .mask_clear_mask = OMAP5430_MASK_CLEAR_CORE_MASK, + .mask_clear_accum_mask = OMAP5430_MASK_CLEAR_ACCUM_CORE_MASK, + + .bgap_counter = OMAP5430_BGAP_CTRL_OFFSET, + .counter_mask = OMAP5430_COUNTER_MASK, + + .bgap_threshold = OMAP5430_BGAP_THRESHOLD_CORE_OFFSET, + .threshold_thot_mask = OMAP5430_T_HOT_MASK, + .threshold_tcold_mask = OMAP5430_T_COLD_MASK, + + .tshut_threshold = OMAP5430_BGAP_TSHUT_CORE_OFFSET, + .tshut_hot_mask = OMAP5430_TSHUT_HOT_MASK, + .tshut_cold_mask = OMAP5430_TSHUT_COLD_MASK, + + .bgap_status = OMAP5430_BGAP_STATUS_OFFSET, + .status_clean_stop_mask = 0x0, + .status_bgap_alert_mask = OMAP5430_BGAP_ALERT_MASK, + .status_hot_mask = OMAP5430_HOT_CORE_FLAG_MASK, + .status_cold_mask = OMAP5430_COLD_CORE_FLAG_MASK, + + .bgap_cumul_dtemp = OMAP5430_BGAP_CUMUL_DTEMP_CORE_OFFSET, + .ctrl_dtemp_0 = OMAP5430_BGAP_DTEMP_CORE_0_OFFSET, + .ctrl_dtemp_1 = OMAP5430_BGAP_DTEMP_CORE_1_OFFSET, + .ctrl_dtemp_2 = OMAP5430_BGAP_DTEMP_CORE_2_OFFSET, + .ctrl_dtemp_3 = OMAP5430_BGAP_DTEMP_CORE_3_OFFSET, + .ctrl_dtemp_4 = OMAP5430_BGAP_DTEMP_CORE_4_OFFSET, + + .bgap_efuse = OMAP5430_FUSE_OPP_BGAP_CORE, +}; + +/* Thresholds and limits for OMAP5430 MPU temperature sensor */ +static struct temp_sensor_data omap5430_mpu_temp_sensor_data = { + .tshut_hot = OMAP5430_MPU_TSHUT_HOT, + .tshut_cold = OMAP5430_MPU_TSHUT_COLD, + .t_hot = OMAP5430_MPU_T_HOT, + .t_cold = OMAP5430_MPU_T_COLD, + .min_freq = OMAP5430_MPU_MIN_FREQ, + .max_freq = OMAP5430_MPU_MAX_FREQ, + .max_temp = OMAP5430_MPU_MAX_TEMP, + .min_temp = OMAP5430_MPU_MIN_TEMP, + .hyst_val = OMAP5430_MPU_HYST_VAL, + .update_int1 = 1000, + .update_int2 = 2000, +}; + +/* Thresholds and limits for OMAP5430 GPU temperature sensor */ +static struct temp_sensor_data omap5430_gpu_temp_sensor_data = { + .tshut_hot = OMAP5430_GPU_TSHUT_HOT, + .tshut_cold = OMAP5430_GPU_TSHUT_COLD, + .t_hot = OMAP5430_GPU_T_HOT, + .t_cold = OMAP5430_GPU_T_COLD, + .min_freq = OMAP5430_GPU_MIN_FREQ, + .max_freq = OMAP5430_GPU_MAX_FREQ, + .max_temp = OMAP5430_GPU_MAX_TEMP, + .min_temp = OMAP5430_GPU_MIN_TEMP, + .hyst_val = OMAP5430_GPU_HYST_VAL, + .update_int1 = 1000, + .update_int2 = 2000, +}; + +/* Thresholds and limits for OMAP5430 CORE temperature sensor */ +static struct temp_sensor_data omap5430_core_temp_sensor_data = { + .tshut_hot = OMAP5430_CORE_TSHUT_HOT, + .tshut_cold = OMAP5430_CORE_TSHUT_COLD, + .t_hot = OMAP5430_CORE_T_HOT, + .t_cold = OMAP5430_CORE_T_COLD, + .min_freq = OMAP5430_CORE_MIN_FREQ, + .max_freq = OMAP5430_CORE_MAX_FREQ, + .max_temp = OMAP5430_CORE_MAX_TEMP, + .min_temp = OMAP5430_CORE_MIN_TEMP, + .hyst_val = OMAP5430_CORE_HYST_VAL, + .update_int1 = 1000, + .update_int2 = 2000, +}; + +/* + * OMAP54xx ES2.0 : Temperature values in milli degree celsius + * ADC code values from 540 to 945 + */ +static int +omap5430_adc_to_temp[ + OMAP5430_ADC_END_VALUE - OMAP5430_ADC_START_VALUE + 1] = { + /* Index 540 - 549 */ + -40000, -40000, -40000, -40000, -39800, -39400, -39000, -38600, -38200, + -37800, + /* Index 550 - 559 */ + -37400, -37000, -36600, -36200, -35800, -35300, -34700, -34200, -33800, + -33400, + /* Index 560 - 569 */ + -33000, -32600, -32200, -31800, -31400, -31000, -30600, -30200, -29800, + -29400, + /* Index 570 - 579 */ + -29000, -28600, -28200, -27700, -27100, -26600, -26200, -25800, -25400, + -25000, + /* Index 580 - 589 */ + -24600, -24200, -23800, -23400, -23000, -22600, -22200, -21600, -21400, + -21000, + /* Index 590 - 599 */ + -20500, -19900, -19400, -19000, -18600, -18200, -17800, -17400, -17000, + -16600, + /* Index 600 - 609 */ + -16200, -15800, -15400, -15000, -14600, -14200, -13800, -13400, -13000, + -12500, + /* Index 610 - 619 */ + -11900, -11400, -11000, -10600, -10200, -9800, -9400, -9000, -8600, + -8200, + /* Index 620 - 629 */ + -7800, -7400, -7000, -6600, -6200, -5800, -5400, -5000, -4500, -3900, + /* Index 630 - 639 */ + -3400, -3000, -2600, -2200, -1800, -1400, -1000, -600, -200, 200, + /* Index 640 - 649 */ + 600, 1000, 1400, 1800, 2200, 2600, 3000, 3400, 3900, 4500, + /* Index 650 - 659 */ + 5000, 5400, 5800, 6200, 6600, 7000, 7400, 7800, 8200, 8600, + /* Index 660 - 669 */ + 9000, 9400, 9800, 10200, 10600, 11000, 11400, 11800, 12200, 12700, + /* Index 670 - 679 */ + 13300, 13800, 14200, 14600, 15000, 15400, 15800, 16200, 16600, 17000, + /* Index 680 - 689 */ + 17400, 17800, 18200, 18600, 19000, 19400, 19800, 20200, 20600, 21100, + /* Index 690 - 699 */ + 21400, 21900, 22500, 23000, 23400, 23800, 24200, 24600, 25000, 25400, + /* Index 700 - 709 */ + 25800, 26200, 26600, 27000, 27400, 27800, 28200, 28600, 29000, 29400, + /* Index 710 - 719 */ + 29800, 30200, 30600, 31000, 31400, 31900, 32500, 33000, 33400, 33800, + /* Index 720 - 729 */ + 34200, 34600, 35000, 35400, 35800, 36200, 36600, 37000, 37400, 37800, + /* Index 730 - 739 */ + 38200, 38600, 39000, 39400, 39800, 40200, 40600, 41000, 41400, 41800, + /* Index 740 - 749 */ + 42200, 42600, 43100, 43700, 44200, 44600, 45000, 45400, 45800, 46200, + /* Index 750 - 759 */ + 46600, 47000, 47400, 47800, 48200, 48600, 49000, 49400, 49800, 50200, + /* Index 760 - 769 */ + 50600, 51000, 51400, 51800, 52200, 52600, 53000, 53400, 53800, 54200, + /* Index 770 - 779 */ + 54600, 55000, 55400, 55900, 56500, 57000, 57400, 57800, 58200, 58600, + /* Index 780 - 789 */ + 59000, 59400, 59800, 60200, 60600, 61000, 61400, 61800, 62200, 62600, + /* Index 790 - 799 */ + 63000, 63400, 63800, 64200, 64600, 65000, 65400, 65800, 66200, 66600, + /* Index 800 - 809 */ + 67000, 67400, 67800, 68200, 68600, 69000, 69400, 69800, 70200, 70600, + /* Index 810 - 819 */ + 71000, 71500, 72100, 72600, 73000, 73400, 73800, 74200, 74600, 75000, + /* Index 820 - 829 */ + 75400, 75800, 76200, 76600, 77000, 77400, 77800, 78200, 78600, 79000, + /* Index 830 - 839 */ + 79400, 79800, 80200, 80600, 81000, 81400, 81800, 82200, 82600, 83000, + /* Index 840 - 849 */ + 83400, 83800, 84200, 84600, 85000, 85400, 85800, 86200, 86600, 87000, + /* Index 850 - 859 */ + 87400, 87800, 88200, 88600, 89000, 89400, 89800, 90200, 90600, 91000, + /* Index 860 - 869 */ + 91400, 91800, 92200, 92600, 93000, 93400, 93800, 94200, 94600, 95000, + /* Index 870 - 879 */ + 95400, 95800, 96200, 96600, 97000, 97500, 98100, 98600, 99000, 99400, + /* Index 880 - 889 */ + 99800, 100200, 100600, 101000, 101400, 101800, 102200, 102600, 103000, + 103400, + /* Index 890 - 899 */ + 103800, 104200, 104600, 105000, 105400, 105800, 106200, 106600, 107000, + 107400, + /* Index 900 - 909 */ + 107800, 108200, 108600, 109000, 109400, 109800, 110200, 110600, 111000, + 111400, + /* Index 910 - 919 */ + 111800, 112200, 112600, 113000, 113400, 113800 |