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samus: Change thermal behavior to match other haswell platforms 

Change-Id: Ia835f16b156949f1841210c4a469223d5df28a54
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/174087
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
(cherry picked from commit 8e51d1d74cdcadde9cbf10e8321d601b099c46bc)
Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com>
Reviewed-on: http://review.coreboot.org/6825
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
This commit is contained in:
Duncan Laurie 2013-10-12 11:50:05 +08:00 committed by Isaac Christensen
parent 51edd54738
commit 1eca1d4e15
3 changed files with 42 additions and 90 deletions
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104
src/mainboard/google/samus/acpi/thermal.asl
View File

@ -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)
@ -61,7 +75,7 @@ Scope (\_TZ)
Return (\PPKG ())
}
Method (_TMP, 0, Serialized)
Method (TCHK, 0, Serialized)
{
// Get Temperature from TIN# set in NVS
Store (\_SB.PCI0.LPCB.EC0.TINS (TMPS), Local0)
@ -94,79 +108,29 @@ Scope (\_TZ)
Return (Local0)
}
/* CTDP Down */
Method (_AC0) {
If (LLessEqual (\FLVL, 0)) {
Return (CTOK (\F0OF))
} Else {
Return (CTOK (\F0ON))
}
}
/* CTDP Nominal */
Method (_AC1) {
If (LLessEqual (\FLVL, 1)) {
Return (CTOK (\F1OF))
} Else {
Return (CTOK (\F1ON))
}
}
Name (_AL0, Package () { TDP0 })
Name (_AL1, Package () { TDP1 })
PowerResource (TNP0, 0, 0)
Method (_TMP, 0, Serialized)
{
Method (_STA) {
If (LLessEqual (\FLVL, 0)) {
Return (One)
} Else {
Return (Zero)
}
}
Method (_ON) {
Store (0, \FLVL)
\_SB.PCI0.MCHC.STND ()
Notify (\_TZ.THRM, 0x81)
}
Method (_OFF) {
Store (1, \FLVL)
\_SB.PCI0.MCHC.STDN ()
Notify (\_TZ.THRM, 0x81)
}
}
// Get temperature from EC in deci-kelvin
Store (TCHK (), Local0)
PowerResource (TNP1, 0, 0)
{
Method (_STA) {
If (LLessEqual (\FLVL, 1)) {
Return (One)
} Else {
Return (Zero)
}
}
Method (_ON) {
Store (1, \FLVL)
Notify (\_TZ.THRM, 0x81)
}
Method (_OFF) {
Store (1, \FLVL)
Notify (\_TZ.THRM, 0x81)
}
}
// Critical temperature in deci-kelvin
Store (CTOK (\TCRT), Local1)
Device (TDP0)
{
Name (_HID, EISAID ("PNP0C0B"))
Name (_UID, 0)
Name (_PR0, Package () { TNP0 })
}
If (LGreaterEqual (Local0, Local1)) {
Store ("CRITICAL TEMPERATURE", Debug)
Store (Local0, Debug)
Device (TDP1)
{
Name (_HID, EISAID ("PNP0C0B"))
Name (_UID, 1)
Name (_PR0, Package () { TNP1 })
// Wait 1 second for EC to re-poll
Sleep (1000)
// Re-read temperature from EC
Store (TCHK (), Local0)
Store ("RE-READ TEMPERATURE", Debug)
Store (Local0, Debug)
}
Return (Local0)
}
}
}

10
src/mainboard/google/samus/acpi_tables.c
View File

@ -44,17 +44,11 @@ unsigned long acpi_create_slic(unsigned long current);
static void acpi_update_thermal_table(global_nvs_t *gnvs)
{
gnvs->tmps = CTDP_SENSOR_ID;
gnvs->f1of = CTDP_NOMINAL_THRESHOLD_OFF;
gnvs->f1on = CTDP_NOMINAL_THRESHOLD_ON;
gnvs->f0of = CTDP_DOWN_THRESHOLD_OFF;
gnvs->f0on = CTDP_DOWN_THRESHOLD_ON;
gnvs->tmps = TEMPERATURE_SENSOR_ID;
gnvs->tcrt = CRITICAL_TEMPERATURE;
gnvs->tpsv = PASSIVE_TEMPERATURE;
gnvs->tmax = MAX_TEMPERATURE;
gnvs->f0pw = EC_THROTTLE_POWER_LIMIT;
gnvs->flvl = 1;
}

18
src/mainboard/google/samus/thermal.h
View File

@ -20,24 +20,18 @@
#ifndef THERMAL_H
#define THERMAL_H
/* Config TDP Sensor ID */
#define CTDP_SENSOR_ID 0 /* PECI */
#define TEMPERATURE_SENSOR_ID 0 /* PECI */
/* Config TDP Nominal */
#define CTDP_NOMINAL_THRESHOLD_OFF 0
#define CTDP_NOMINAL_THRESHOLD_ON 0
/* Config TDP Down */
#define CTDP_DOWN_THRESHOLD_OFF 80
#define CTDP_DOWN_THRESHOLD_ON 90
/* 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
#define CRITICAL_TEMPERATURE 99
/* Temperature which OS will throttle CPU */
#define PASSIVE_TEMPERATURE 100
#define PASSIVE_TEMPERATURE 95
/* Tj_max value for calculating PECI CPU temperature */
#define MAX_TEMPERATURE 105
#define MAX_TEMPERATURE 100
#endif