diff options
| -rw-r--r-- | src/mainboard/google/falco/acpi/thermal.asl | 14 | ||||
| -rw-r--r-- | src/mainboard/google/falco/acpi_tables.c | 1 | ||||
| -rw-r--r-- | src/mainboard/google/falco/ec.h | 2 | ||||
| -rw-r--r-- | src/mainboard/google/falco/thermal.h | 3 |
4 files changed, 20 insertions, 0 deletions
diff --git a/src/mainboard/google/falco/acpi/thermal.asl b/src/mainboard/google/falco/acpi/thermal.asl index adbc9ec4fb..f9173b78c0 100644 --- a/src/mainboard/google/falco/acpi/thermal.asl +++ b/src/mainboard/google/falco/acpi/thermal.asl @@ -21,6 +21,20 @@ Scope (\_TZ) { + // Handler for throttle requests on this platform + // 0 = Stop throttling + // 1 = Start throttling + Method (THRT, 1, Serialized) + { + If (LEqual (Arg0, 0)) { + /* Disable Power Limit */ + \_SB.PCI0.MCHC.CTLD () + } Else { + /* Enable Power Limit */ + \_SB.PCI0.MCHC.CTLE (\F0PW) + } + } + ThermalZone (THRM) { Name (_TC1, 0x02) diff --git a/src/mainboard/google/falco/acpi_tables.c b/src/mainboard/google/falco/acpi_tables.c index 34c4407628..ba084a11d9 100644 --- a/src/mainboard/google/falco/acpi_tables.c +++ b/src/mainboard/google/falco/acpi_tables.c @@ -48,6 +48,7 @@ static void acpi_update_thermal_table(global_nvs_t *gnvs) gnvs->tcrt = CRITICAL_TEMPERATURE; gnvs->tpsv = PASSIVE_TEMPERATURE; gnvs->tmax = MAX_TEMPERATURE; + gnvs->f0pw = EC_THROTTLE_POWER_LIMIT; gnvs->flvl = 1; } diff --git a/src/mainboard/google/falco/ec.h b/src/mainboard/google/falco/ec.h index 11d2453837..c61d3da233 100644 --- a/src/mainboard/google/falco/ec.h +++ b/src/mainboard/google/falco/ec.h @@ -35,6 +35,8 @@ EC_HOST_EVENT_MASK(EC_HOST_EVENT_BATTERY) |\ EC_HOST_EVENT_MASK(EC_HOST_EVENT_THERMAL_THRESHOLD) |\ EC_HOST_EVENT_MASK(EC_HOST_EVENT_THERMAL_OVERLOAD) |\ + EC_HOST_EVENT_MASK(EC_HOST_EVENT_THROTTLE_START) |\ + EC_HOST_EVENT_MASK(EC_HOST_EVENT_THROTTLE_STOP) |\ EC_HOST_EVENT_MASK(EC_HOST_EVENT_USB_CHARGER)) #define MAINBOARD_EC_SMI_EVENTS \ diff --git a/src/mainboard/google/falco/thermal.h b/src/mainboard/google/falco/thermal.h index cfda67d66c..9bd6ee64ce 100644 --- a/src/mainboard/google/falco/thermal.h +++ b/src/mainboard/google/falco/thermal.h @@ -22,6 +22,9 @@ #define TEMPERATURE_SENSOR_ID 0 /* PECI */ +/* Power level to set when EC requests throttle */ +#define EC_THROTTLE_POWER_LIMIT 12 /* 12W */ + /* Temperature which OS will shutdown at */ #define CRITICAL_TEMPERATURE 104 |