diff options
Diffstat (limited to 'board/eldrid/thermal.c')
| -rw-r--r-- | board/eldrid/thermal.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/board/eldrid/thermal.c b/board/eldrid/thermal.c index ce36ce3860..2f4210c36c 100644 --- a/board/eldrid/thermal.c +++ b/board/eldrid/thermal.c @@ -17,6 +17,60 @@ #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 |