xref: /openbmc/linux/drivers/thermal/tegra/tegra124-soctherm.c (revision 2a895871)

/*
 * Copyright (c) 2014-2016, NVIDIA CORPORATION.  All rights reserved.
 *
 * 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 <linux/module.h>
#include <linux/platform_device.h>

#include <dt-bindings/thermal/tegra124-soctherm.h>

#include "soctherm.h"

#define TEGRA124_THERMTRIP_ANY_EN_MASK		(0x1 << 28)
#define TEGRA124_THERMTRIP_MEM_EN_MASK		(0x1 << 27)
#define TEGRA124_THERMTRIP_GPU_EN_MASK		(0x1 << 26)
#define TEGRA124_THERMTRIP_CPU_EN_MASK		(0x1 << 25)
#define TEGRA124_THERMTRIP_TSENSE_EN_MASK	(0x1 << 24)
#define TEGRA124_THERMTRIP_GPUMEM_THRESH_MASK	(0xff << 16)
#define TEGRA124_THERMTRIP_CPU_THRESH_MASK	(0xff << 8)
#define TEGRA124_THERMTRIP_TSENSE_THRESH_MASK	0xff

#define TEGRA124_THRESH_GRAIN			1000

static const struct tegra_tsensor_configuration tegra124_tsensor_config = {
	.tall = 16300,
	.tiddq_en = 1,
	.ten_count = 1,
	.tsample = 120,
	.tsample_ate = 480,
};

static const struct tegra_tsensor_group tegra124_tsensor_group_cpu = {
	.id = TEGRA124_SOCTHERM_SENSOR_CPU,
	.name	= "cpu",
	.sensor_temp_offset	= SENSOR_TEMP1,
	.sensor_temp_mask	= SENSOR_TEMP1_CPU_TEMP_MASK,
	.pdiv = 8,
	.pdiv_ate = 8,
	.pdiv_mask = SENSOR_PDIV_CPU_MASK,
	.pllx_hotspot_diff = 10,
	.pllx_hotspot_mask = SENSOR_HOTSPOT_CPU_MASK,
	.thermtrip_any_en_mask = TEGRA124_THERMTRIP_ANY_EN_MASK,
	.thermtrip_enable_mask = TEGRA124_THERMTRIP_CPU_EN_MASK,
	.thermtrip_threshold_mask = TEGRA124_THERMTRIP_CPU_THRESH_MASK,
};

static const struct tegra_tsensor_group tegra124_tsensor_group_gpu = {
	.id = TEGRA124_SOCTHERM_SENSOR_GPU,
	.name = "gpu",
	.sensor_temp_offset = SENSOR_TEMP1,
	.sensor_temp_mask = SENSOR_TEMP1_GPU_TEMP_MASK,
	.pdiv = 8,
	.pdiv_ate = 8,
	.pdiv_mask = SENSOR_PDIV_GPU_MASK,
	.pllx_hotspot_diff = 5,
	.pllx_hotspot_mask = SENSOR_HOTSPOT_GPU_MASK,
	.thermtrip_any_en_mask = TEGRA124_THERMTRIP_ANY_EN_MASK,
	.thermtrip_enable_mask = TEGRA124_THERMTRIP_GPU_EN_MASK,
	.thermtrip_threshold_mask = TEGRA124_THERMTRIP_GPUMEM_THRESH_MASK,
};

static const struct tegra_tsensor_group tegra124_tsensor_group_pll = {
	.id = TEGRA124_SOCTHERM_SENSOR_PLLX,
	.name = "pll",
	.sensor_temp_offset = SENSOR_TEMP2,
	.sensor_temp_mask = SENSOR_TEMP2_PLLX_TEMP_MASK,
	.pdiv = 8,
	.pdiv_ate = 8,
	.pdiv_mask = SENSOR_PDIV_PLLX_MASK,
	.thermtrip_any_en_mask = TEGRA124_THERMTRIP_ANY_EN_MASK,
	.thermtrip_enable_mask = TEGRA124_THERMTRIP_TSENSE_EN_MASK,
	.thermtrip_threshold_mask = TEGRA124_THERMTRIP_TSENSE_THRESH_MASK,
};

static const struct tegra_tsensor_group tegra124_tsensor_group_mem = {
	.id = TEGRA124_SOCTHERM_SENSOR_MEM,
	.name = "mem",
	.sensor_temp_offset = SENSOR_TEMP2,
	.sensor_temp_mask = SENSOR_TEMP2_MEM_TEMP_MASK,
	.pdiv = 8,
	.pdiv_ate = 8,
	.pdiv_mask = SENSOR_PDIV_MEM_MASK,
	.pllx_hotspot_diff = 0,
	.pllx_hotspot_mask = SENSOR_HOTSPOT_MEM_MASK,
	.thermtrip_any_en_mask = TEGRA124_THERMTRIP_ANY_EN_MASK,
	.thermtrip_enable_mask = TEGRA124_THERMTRIP_MEM_EN_MASK,
	.thermtrip_threshold_mask = TEGRA124_THERMTRIP_GPUMEM_THRESH_MASK,
};

static const struct tegra_tsensor_group *tegra124_tsensor_groups[] = {
	&tegra124_tsensor_group_cpu,
	&tegra124_tsensor_group_gpu,
	&tegra124_tsensor_group_pll,
	&tegra124_tsensor_group_mem,
};

static const struct tegra_tsensor tegra124_tsensors[] = {
	{
		.name = "cpu0",
		.base = 0xc0,
		.config = &tegra124_tsensor_config,
		.calib_fuse_offset = 0x098,
		.fuse_corr_alpha = 1135400,
		.fuse_corr_beta = -6266900,
		.group = &tegra124_tsensor_group_cpu,
	}, {
		.name = "cpu1",
		.base = 0xe0,
		.config = &tegra124_tsensor_config,
		.calib_fuse_offset = 0x084,
		.fuse_corr_alpha = 1122220,
		.fuse_corr_beta = -5700700,
		.group = &tegra124_tsensor_group_cpu,
	}, {
		.name = "cpu2",
		.base = 0x100,
		.config = &tegra124_tsensor_config,
		.calib_fuse_offset = 0x088,
		.fuse_corr_alpha = 1127000,
		.fuse_corr_beta = -6768200,
		.group = &tegra124_tsensor_group_cpu,
	}, {
		.name = "cpu3",
		.base = 0x120,
		.config = &tegra124_tsensor_config,
		.calib_fuse_offset = 0x12c,
		.fuse_corr_alpha = 1110900,
		.fuse_corr_beta = -6232000,
		.group = &tegra124_tsensor_group_cpu,
	}, {
		.name = "mem0",
		.base = 0x140,
		.config = &tegra124_tsensor_config,
		.calib_fuse_offset = 0x158,
		.fuse_corr_alpha = 1122300,
		.fuse_corr_beta = -5936400,
		.group = &tegra124_tsensor_group_mem,
	}, {
		.name = "mem1",
		.base = 0x160,
		.config = &tegra124_tsensor_config,
		.calib_fuse_offset = 0x15c,
		.fuse_corr_alpha = 1145700,
		.fuse_corr_beta = -7124600,
		.group = &tegra124_tsensor_group_mem,
	}, {
		.name = "gpu",
		.base = 0x180,
		.config = &tegra124_tsensor_config,
		.calib_fuse_offset = 0x154,
		.fuse_corr_alpha = 1120100,
		.fuse_corr_beta = -6000500,
		.group = &tegra124_tsensor_group_gpu,
	}, {
		.name = "pllx",
		.base = 0x1a0,
		.config = &tegra124_tsensor_config,
		.calib_fuse_offset = 0x160,
		.fuse_corr_alpha = 1106500,
		.fuse_corr_beta = -6729300,
		.group = &tegra124_tsensor_group_pll,
	},
};

/*
 * Mask/shift bits in FUSE_TSENSOR_COMMON and
 * FUSE_TSENSOR_COMMON, which are described in
 * tegra_soctherm_fuse.c
 */
static const struct tegra_soctherm_fuse tegra124_soctherm_fuse = {
	.fuse_base_cp_mask = 0x3ff,
	.fuse_base_cp_shift = 0,
	.fuse_base_ft_mask = 0x7ff << 10,
	.fuse_base_ft_shift = 10,
	.fuse_shift_ft_mask = 0x1f << 21,
	.fuse_shift_ft_shift = 21,
	.fuse_spare_realignment = 0x1fc,
};

const struct tegra_soctherm_soc tegra124_soctherm = {
	.tsensors = tegra124_tsensors,
	.num_tsensors = ARRAY_SIZE(tegra124_tsensors),
	.ttgs = tegra124_tsensor_groups,
	.num_ttgs = ARRAY_SIZE(tegra124_tsensor_groups),
	.tfuse = &tegra124_soctherm_fuse,
	.thresh_grain = TEGRA124_THRESH_GRAIN,
};