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authorJack Rosenthal <jrosenth@chromium.org>2021-11-04 12:11:58 -0600
committerCommit Bot <commit-bot@chromium.org>2021-11-05 04:22:34 +0000
commit252457d4b21f46889eebad61d4c0a65331919cec (patch)
tree01856c4d31d710b20e85a74c8d7b5836e35c3b98 /board/eldrid/thermal.c
parent08f5a1e6fc2c9467230444ac9b582dcf4d9f0068 (diff)
downloadchrome-ec-stabilize-14526.84.B-ish.tar.gz
In the interest of making long-term branch maintenance incur as little technical debt on us as possible, we should not maintain any files on the branch we are not actually using. This has the added effect of making it extremely clear when merging CLs from the main branch when changes have the possibility to affect us. The follow-on CL adds a convenience script to actually pull updates from the main branch and generate a CL for the update. BUG=b:204206272 BRANCH=ish TEST=make BOARD=arcada_ish && make BOARD=drallion_ish Signed-off-by: Jack Rosenthal <jrosenth@chromium.org> Change-Id: I17e4694c38219b5a0823e0a3e55a28d1348f4b18 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3262038 Reviewed-by: Jett Rink <jettrink@chromium.org> Reviewed-by: Tom Hughes <tomhughes@chromium.org>
Diffstat (limited to 'board/eldrid/thermal.c')
-rw-r--r--board/eldrid/thermal.c210
1 files changed, 0 insertions, 210 deletions
diff --git a/board/eldrid/thermal.c b/board/eldrid/thermal.c
deleted file mode 100644
index 4f9ac8796b..0000000000
--- a/board/eldrid/thermal.c
+++ /dev/null
@@ -1,210 +0,0 @@
-/* Copyright 2020 The Chromium OS Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include "chipset.h"
-#include "common.h"
-#include "console.h"
-#include "fan.h"
-#include "hooks.h"
-#include "host_command.h"
-#include "temp_sensor.h"
-#include "thermal.h"
-#include "util.h"
-
-/* Console output macros */
-#define CPUTS(outstr) cputs(CC_THERMAL, outstr)
-#define CPRINTS(format, args...) cprints(CC_THERMAL, format, ## args)
-
-
-/******************************************************************************/
-/* EC thermal management configuration */
-/*
- * Tiger Lake specifies 100 C as maximum TDP temperature. THRMTRIP# occurs at
- * 130 C. However, sensor is located next to DDR, so we need to use the lower
- * DDR temperature limit (85 C).
- * TODO(b/170143672): Have different sensor placement. The temperature need to
- * be changed.
- */
-const static struct ec_thermal_config thermal_cpu = {
- .temp_host = {
- [EC_TEMP_THRESH_HIGH] = C_TO_K(70),
- [EC_TEMP_THRESH_HALT] = C_TO_K(80),
- },
- .temp_host_release = {
- [EC_TEMP_THRESH_HIGH] = C_TO_K(65),
- },
- .temp_fan_off = C_TO_K(35),
- .temp_fan_max = C_TO_K(50),
-};
-
-/*
- * Inductor limits - used for both charger and PP3300 regulator
- *
- * Need to use the lower of the charger IC, PP3300 regulator, and the inductors
- *
- * Charger max recommended temperature 100C, max absolute temperature 125C
- * PP3300 regulator: operating range -40 C to 145 C
- *
- * Inductors: limit of 125c
- * PCB: limit is 80c
- */
-const static struct ec_thermal_config thermal_inductor = {
- .temp_host = {
- [EC_TEMP_THRESH_HIGH] = C_TO_K(75),
- [EC_TEMP_THRESH_HALT] = C_TO_K(80),
- },
- .temp_host_release = {
- [EC_TEMP_THRESH_HIGH] = C_TO_K(65),
- },
- .temp_fan_off = C_TO_K(40),
- .temp_fan_max = C_TO_K(55),
-};
-
-struct ec_thermal_config thermal_params[] = {
- [TEMP_SENSOR_1_CHARGER] = thermal_inductor,
- [TEMP_SENSOR_2_PP3300_REGULATOR] = thermal_inductor,
- [TEMP_SENSOR_3_DDR_SOC] = thermal_cpu,
- [TEMP_SENSOR_4_FAN] = thermal_cpu,
-};
-BUILD_ASSERT(ARRAY_SIZE(thermal_params) == TEMP_SENSOR_COUNT);
-
-/******************************************************************************/
-struct fan_step {
- /*
- * Sensor 1~4 trigger point, set -1 if we're not using this
- * sensor to determine fan speed.
- */
- int8_t on[TEMP_SENSOR_COUNT];
-
- /*
- * Sensor 1~4 trigger point, set -1 if we're not using this
- * sensor to determine fan speed.
- */
- int8_t off[TEMP_SENSOR_COUNT];
-
- /* Fan rpm */
- uint16_t rpm[FAN_CH_COUNT];
-};
-
-/*
- * TODO(b/167931578) Only monitor sensor3 for now.
- * Will add more sensors support if needed.
- */
-static const struct fan_step fan_table[] = {
- {
- /* level 0 */
- .on = {-1, -1, 44, -1},
- .off = {-1, -1, 0, -1},
- .rpm = {0},
- },
- {
- /* level 1 */
- .on = {-1, -1, 46, -1},
- .off = {-1, -1, 44, -1},
- .rpm = {3200},
- },
- {
- /* level 2 */
- .on = {-1, -1, 50, -1},
- .off = {-1, -1, 45, -1},
- .rpm = {3600},
- },
- {
- /* level 3 */
- .on = {-1, -1, 54, -1},
- .off = {-1, -1, 49, -1},
- .rpm = {4100},
- },
- {
- /* level 4 */
- .on = {-1, -1, 58, -1},
- .off = {-1, -1, 53, -1},
- .rpm = {4900},
- },
- {
- /* level 5 */
- .on = {-1, -1, 60, -1},
- .off = {-1, -1, 57, -1},
- .rpm = {5200},
- },
-};
-
-int fan_table_to_rpm(int fan, int *temp)
-{
- /* current fan level */
- static int current_level;
- /* previous fan level */
- static int prev_current_level;
-
- /* previous sensor temperature */
- static int prev_temp[TEMP_SENSOR_COUNT];
- const int num_fan_levels = ARRAY_SIZE(fan_table);
- int i;
- int new_rpm = 0;
-
- /*
- * Compare the current and previous temperature, we have
- * the three paths :
- * 1. decreasing path. (check the release point)
- * 2. increasing path. (check the trigger point)
- * 3. invariant path. (return the current RPM)
- */
-
- if (temp[TEMP_SENSOR_3_DDR_SOC] < prev_temp[TEMP_SENSOR_3_DDR_SOC]) {
- for (i = current_level; i > 0; i--) {
- if (temp[TEMP_SENSOR_3_DDR_SOC] <
- fan_table[i].off[TEMP_SENSOR_3_DDR_SOC])
- current_level = i - 1;
- else
- break;
- }
- } else if (temp[TEMP_SENSOR_3_DDR_SOC] >
- prev_temp[TEMP_SENSOR_3_DDR_SOC]) {
- for (i = current_level; i < num_fan_levels; i++) {
- if (temp[TEMP_SENSOR_3_DDR_SOC] >
- fan_table[i].on[TEMP_SENSOR_3_DDR_SOC])
- current_level = i;
- else
- break;
- }
- }
-
- if (current_level < 0)
- current_level = 0;
-
- if (current_level != prev_current_level) {
- CPRINTS("temp: %d, prev_temp: %d", temp[TEMP_SENSOR_3_DDR_SOC],
- prev_temp[TEMP_SENSOR_3_DDR_SOC]);
- CPRINTS("current_level: %d", current_level);
- }
-
- for (i = 0; i < TEMP_SENSOR_COUNT; ++i)
- prev_temp[i] = temp[i];
-
- prev_current_level = current_level;
-
- switch (fan) {
- case FAN_CH_0:
- new_rpm = fan_table[current_level].rpm[FAN_CH_0];
- break;
- default:
- break;
- }
-
- return new_rpm;
-}
-
-void board_override_fan_control(int fan, int *temp)
-{
- if (chipset_in_state(CHIPSET_STATE_ON)) {
- fan_set_rpm_mode(FAN_CH(fan), 1);
- fan_set_rpm_target(FAN_CH(fan),
- fan_table_to_rpm(fan, temp));
- } else if (chipset_in_state(CHIPSET_STATE_ANY_SUSPEND)) {
- /* Stop fan when enter S0ix */
- fan_set_rpm_mode(FAN_CH(fan), 1);
- fan_set_rpm_target(FAN_CH(fan), 0);
- }
-}