607c0b6d63
This change creates an exynos5420 directory with code that will eventually implement support for the exynos5420 cpu from Samsung. Currently it's a copy of the exynos5250 directory with the name changed. There are going to be some problems where headers in src/cpu/samsung/exynos-common include headers in the exynos5250 directory directly. Change-Id: Ia8d7244310d32499238bbc171c0c668ec48178e1 Signed-off-by: Gabe Black <gabeblack@chromium.org> Reviewed-on: http://review.coreboot.org/3644 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
135 lines
3.6 KiB
C
135 lines
3.6 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright (c) 2012 Samsung Electronics Co., Ltd.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/* EXYNOS - Thermal Management Unit */
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#ifndef CPU_SAMSUNG_EXYNOS5420_TMU_H
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#define CPU_SAMSUNG_EXYNOS5420_TMU_H
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struct tmu_reg {
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unsigned triminfo;
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unsigned rsvd1;
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unsigned rsvd2;
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unsigned rsvd3;
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unsigned rsvd4;
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unsigned triminfo_control;
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unsigned rsvd5;
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unsigned rsvd6;
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unsigned tmu_control;
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unsigned rsvd7;
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unsigned tmu_status;
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unsigned sampling_internal;
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unsigned counter_value0;
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unsigned counter_value1;
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unsigned rsvd8;
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unsigned rsvd9;
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unsigned current_temp;
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unsigned rsvd10;
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unsigned rsvd11;
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unsigned rsvd12;
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unsigned threshold_temp_rise;
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unsigned threshold_temp_fall;
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unsigned rsvd13;
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unsigned rsvd14;
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unsigned past_temp3_0;
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unsigned past_temp7_4;
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unsigned past_temp11_8;
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unsigned past_temp15_12;
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unsigned inten;
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unsigned intstat;
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unsigned intclear;
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unsigned rsvd15;
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unsigned emul_con;
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};
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enum tmu_status_t {
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TMU_STATUS_INIT = 0,
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TMU_STATUS_NORMAL,
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TMU_STATUS_WARNING,
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TMU_STATUS_TRIPPED,
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};
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/* Tmeperature threshold values for various thermal events */
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struct temperature_params {
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/* minimum value in temperature code range */
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unsigned int min_val;
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/* maximum value in temperature code range */
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unsigned int max_val;
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/* temperature threshold to start warning */
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unsigned int start_warning;
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/* temperature threshold CPU tripping */
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unsigned int start_tripping;
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/* temperature threshold for HW tripping */
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unsigned int hardware_tripping;
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};
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/* Pre-defined values and thresholds for calibration of current temperature */
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struct tmu_data {
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/* pre-defined temperature thresholds */
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struct temperature_params ts;
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/* pre-defined efuse range minimum value */
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unsigned int efuse_min_value;
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/* pre-defined efuse value for temperature calibration */
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unsigned int efuse_value;
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/* pre-defined efuse range maximum value */
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unsigned int efuse_max_value;
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/* current temperature sensing slope */
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unsigned int slope;
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};
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/* TMU device specific details and status */
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struct tmu_info {
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/* base Address for the TMU */
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unsigned tmu_base;
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/* mux Address for the TMU */
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int tmu_mux;
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/* pre-defined values for calibration and thresholds */
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struct tmu_data data;
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/* value required for triminfo_25 calibration */
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unsigned int te1;
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/* value required for triminfo_85 calibration */
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unsigned int te2;
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/* TMU DC value for threshold calculation */
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int dc_value;
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/* enum value indicating status of the TMU */
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int tmu_state;
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};
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extern struct tmu_info *tmu_info;
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/*
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* Monitors status of the TMU device and exynos temperature
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*
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* @info pointer to TMU info struct
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* @temp pointer to the current temperature value
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* @return enum tmu_status_t value, code indicating event to execute
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* and -1 on error
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*/
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enum tmu_status_t tmu_monitor(struct tmu_info *info, int *temp);
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/*
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* Initialize TMU device
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*
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* @info pointer to TMU info struct
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* @return int value, 0 for success
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*/
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int tmu_init(struct tmu_info *info);
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#endif /* CPU_SAMSUNG_EXYNOS5420_TMU_H */
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