samus: Add coreboot board

Add the coreboot board files for samus
- Based on Bolt
- GPIO setup based on 0.91 schematic
- Support both memory types
- No HDA verb table for this platform
- Some GPIO interrupts are shared and need to be passed to OS

Change-Id: I8dbd7639456c631a0115b03a493d94b5e2361ab5
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/171694
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
(cherry picked from commit 249a74c628264e3d4ce754803ede31238404b4d5)
Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com>
Reviewed-on: http://review.coreboot.org/6775
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

1 files changed, 172 insertions, 0 deletions

diff --git a/src/mainboard/google/samus/acpi/thermal.asl b/src/mainboard/google/samus/acpi/thermal.asl
new file mode 100644
index 0000000000..b61baeb261
--- /dev/null
+++ b/src/mainboard/google/samus/acpi/thermal.asl
@@ -0,0 +1,172 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2012 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 (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 calibrated
+			If (LEqual (Local0, \_SB.PCI0.LPCB.EC0.TNCA)) {
+				Return (CTOK(0))
+			}
+
+			// 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 })
+		}
+	}
+}