diff options
Diffstat (limited to 'src/mainboard/google/link/acpi/thermal.asl')
| -rw-r--r-- | src/mainboard/google/link/acpi/thermal.asl | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/src/mainboard/google/link/acpi/thermal.asl b/src/mainboard/google/link/acpi/thermal.asl new file mode 100644 index 0000000000..357c096a17 --- /dev/null +++ b/src/mainboard/google/link/acpi/thermal.asl @@ -0,0 +1,219 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2011 Google Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +// Thermal Zone + +Scope (\_TZ) +{ + ThermalZone (CRIT) + { + // Thermal zone polling frequency: 5 seconds + Name (_TZP, 50) + + // Convert from Degrees C to 1/10 Kelvin for ACPI + Method (CTOK, 1) { + // 10th of Degrees C + Multiply (Arg0, 10, Local0) + + // Convert to Kelvin + Add (Local0, 2732, Local0) + + Return (Local0) + } + + // Threshold for OS to shutdown + Method (_CRT, 0, Serialized) + { + Return (CTOK (\TCRT)) + } + + Method (_TMP, 0, Serialized) + { + // Get CPU Temperature from TIN9/PECI via EC + Store (\_SB.PCI0.LPCB.EC0.TIN9, Local0) + + // Check for sensor not present + If (LEqual (Local0, \_SB.PCI0.LPCB.EC0.TNPR)) { + Return (CTOK(0)) + } + + // Check for sensor not powered + If (LEqual (Local0, \_SB.PCI0.LPCB.EC0.TNOP)) { + Return (CTOK(0)) + } + + // Check for sensor bad reading + If (LEqual (Local0, \_SB.PCI0.LPCB.EC0.TBAD)) { + Return (CTOK(0)) + } + + // Adjust by offset to get Kelvin + Add (\_SB.PCI0.LPCB.EC0.TOFS, Local0, Local0) + + // Convert to 1/10 Kelvin + Multiply (Local0, 10, Local0) + Return (Local0) + } + } + + ThermalZone (THRM) + { + Name (_TC1, 0x02) + Name (_TC2, 0x05) + + // Thermal zone polling frequency: 10 seconds + Name (_TZP, 100) + + // Thermal sampling period for passive cooling: 2 seconds + Name (_TSP, 20) + + // Convert from Degrees C to 1/10 Kelvin for ACPI + Method (CTOK, 1) { + // 10th of Degrees C + Multiply (Arg0, 10, Local0) + + // Convert to Kelvin + Add (Local0, 2732, Local0) + + Return (Local0) + } + + // Threshold for OS to shutdown + Method (_CRT, 0, Serialized) + { + Return (CTOK (\TCRT)) + } + + // Threshold for passive cooling + Method (_PSV, 0, Serialized) + { + Return (CTOK (\TPSV)) + } + + // Processors used for passive cooling + Method (_PSL, 0, Serialized) + { + Return (\PPKG ()) + } + + Method (_TMP, 0, Serialized) + { + // Get Temperature from TIN# set in NVS + Store (\_SB.PCI0.LPCB.EC0.TINS (TMPS), Local0) + + // Check for sensor not present + If (LEqual (Local0, \_SB.PCI0.LPCB.EC0.TNPR)) { + Return (CTOK(0)) + } + + // Check for sensor not powered + If (LEqual (Local0, \_SB.PCI0.LPCB.EC0.TNOP)) { + Return (CTOK(0)) + } + + // Check for sensor bad reading + If (LEqual (Local0, \_SB.PCI0.LPCB.EC0.TBAD)) { + Return (CTOK(0)) + } + + // Adjust by offset to get Kelvin + Add (\_SB.PCI0.LPCB.EC0.TOFS, Local0, Local0) + + // Convert to 1/10 Kelvin + Multiply (Local0, 10, Local0) + 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 (_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) + } + } + + 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) + } + } + + Device (TDP0) + { + Name (_HID, EISAID ("PNP0C0B")) + Name (_UID, 0) + Name (_PR0, Package () { TNP0 }) + } + + Device (TDP1) + { + Name (_HID, EISAID ("PNP0C0B")) + Name (_UID, 1) + Name (_PR0, Package () { TNP1 }) + } + } +} + |