From b7ecf6d83047e70ed5846ac35833a04983318b9c Mon Sep 17 00:00:00 2001 From: Stefan Reinauer Date: Wed, 13 Mar 2013 17:13:32 -0700 Subject: Add support for "Stout" Chromebook We're happy to announce coreboot support for the "Stout" Chromebook, a.k.a Lenovo X131e Chromebook. Change-Id: I9b995f8d0dd48e41c788b7c3d35b4fac5840e425 Signed-off-by: Stefan Reinauer Reviewed-on: http://review.coreboot.org/2636 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich --- src/mainboard/google/stout/acpi/thermal.asl | 88 +++++++++++++++++++++++++++++ 1 file changed, 88 insertions(+) create mode 100644 src/mainboard/google/stout/acpi/thermal.asl (limited to 'src/mainboard/google/stout/acpi/thermal.asl') diff --git a/src/mainboard/google/stout/acpi/thermal.asl b/src/mainboard/google/stout/acpi/thermal.asl new file mode 100644 index 0000000000..0db4d133ec --- /dev/null +++ b/src/mainboard/google/stout/acpi/thermal.asl @@ -0,0 +1,88 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2011 The Chromium OS Authors. All rights reserved. + * + * 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 (THRM) + { + Name (_TC1, 0x02) + Name (_TC2, 0x03) + + // Thermal zone polling frequency: 10 seconds + Name (_TZP, 100) + + // Thermal sampling period for passive cooling: 10 seconds + Name (_TSP, 100) + + // 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) + { + // Returns Higher of the two readings for CPU & VGA Temperature + If (LGreater (\_SB.PCI0.LPCB.EC0.TMP2, \_SB.PCI0.LPCB.EC0.TMP1)) + { + // CPU high temperature + Store (\_SB.PCI0.LPCB.EC0.TMP2, Local0) + } + Else + { + // VGA high temperature + Store (\_SB.PCI0.LPCB.EC0.TMP1, Local0) + } + + // If temp less 35 or great then 115, set default 35 + If (Or (LLess (Local0, 35), LGreater (Local0, 115))) + { + Store (35, Local0) + } + + Return (CTOK (Local0)) + } + } +} -- cgit v1.2.3