1 files changed, 146 insertions, 0 deletions
diff --git a/src/mainboard/samsung/lumpy/acpi/thermal.asl b/src/mainboard/samsung/lumpy/acpi/thermal.asl
new file mode 100644
index 0000000000..b8fa750396
--- /dev/null
+++ b/src/mainboard/samsung/lumpy/acpi/thermal.asl
@@ -0,0 +1,146 @@
+/*
+ * 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, 0x05)
+
+		// Ignore critical temps for the first few reads
+		// at boot to prevent unexpected shutdown
+		Name (IRDC, 4)
+		Name (CRDC, 0)
+
+		// 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 CPU Temperature from the Embedded Controller
+			Store (\_SB.PCI0.LPCB.EC0.CPUT, Local0)
+
+			// Re-read from EC if the temperature is very high to
+			// avoid OS shutdown if we got a bad reading.
+			If (LGreaterEqual (Local0, \TCRT)) {
+				Store (\_SB.PCI0.LPCB.EC0.CPUT, Local0)
+				If (LGreaterEqual (Local0, \TCRT)) {
+					// Check if this is an early read
+					If (LLess (CRDC, IRDC)) {
+						Store (0, Local0)
+					}
+				}
+			}
+
+			// Keep track of first few reads by the OS
+			If (LLess (CRDC, IRDC)) {
+				Increment (CRDC)
+			}
+
+			// Invalid reading, ensure fan is spinning
+			If (LGreaterEqual (Local0, 0x80)) {
+				Return (CTOK (\F4ON))
+			}
+
+			Return (CTOK (Local0))
+		}
+
+		Method (_AC0) {
+			If (LLessEqual (\FLVL, 0)) {
+				Return (CTOK (\F0OF))
+			} Else {
+				Return (CTOK (\F0ON))
+			}
+		}
+
+		Method (_AC1) {
+			If (LLessEqual (\FLVL, 1)) {
+				Return (CTOK (\F1OF))
+			} Else {
+				Return (CTOK (\F1ON))
+			}
+		}
+
+		Method (_AC2) {
+			If (LLessEqual (\FLVL, 2)) {
+				Return (CTOK (\F2OF))
+			} Else {
+				Return (CTOK (\F2ON))
+			}
+		}
+
+		Method (_AC3) {
+			If (LLessEqual (\FLVL, 3)) {
+				Return (CTOK (\F3OF))
+			} Else {
+				Return (CTOK (\F3ON))
+			}
+		}
+
+		Method (_AC4) {
+			If (LLessEqual (\FLVL, 4)) {
+				Return (CTOK (\F4OF))
+			} Else {
+				Return (CTOK (\F4ON))
+			}
+		}
+
+		Name (_AL0, Package () { \_SB.PCI0.LPCB.EC0.FAN0 })
+		Name (_AL1, Package () { \_SB.PCI0.LPCB.EC0.FAN1 })
+		Name (_AL2, Package () { \_SB.PCI0.LPCB.EC0.FAN2 })
+		Name (_AL3, Package () { \_SB.PCI0.LPCB.EC0.FAN3 })
+		Name (_AL4, Package () { \_SB.PCI0.LPCB.EC0.FAN4 })
+	}
+}
+