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 <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/2636
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>

8 files changed, 416 insertions, 0 deletions

diff --git a/src/mainboard/google/stout/acpi/chromeos.asl b/src/mainboard/google/stout/acpi/chromeos.asl
new file mode 100644
index 0000000000..b69aff1bf4
--- /dev/null
+++ b/src/mainboard/google/stout/acpi/chromeos.asl
@@ -0,0 +1,27 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2011 The ChromiumOS 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
+ */
+
+Name(OIPG, Package() {
+	// No GPIO for recovery mode, developer mode, or firmware write protect
+	// on stout - note: all virtual pins are active HIGH polarity on stout.
+	Package() { 0x001, 1, 0xFF, "PantherPoint" }, // recovery button
+	Package() { 0x002, 1, 0xFF, "PantherPoint" }, // developer button
+	Package() { 0x003, 0, 7, "PantherPoint" }, // firmware write protect
+})
+
diff --git a/src/mainboard/google/stout/acpi/ec.asl b/src/mainboard/google/stout/acpi/ec.asl
new file mode 100644
index 0000000000..b807894aca
--- /dev/null
+++ b/src/mainboard/google/stout/acpi/ec.asl
@@ -0,0 +1,24 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2012 The ChromiumOS 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
+ */
+
+/* mainboard configuration */
+#include "../ec.h"
+
+/* ACPI code for EC functions */
+#include <ec/quanta/it8518/acpi/ec.asl>
diff --git a/src/mainboard/google/stout/acpi/mainboard.asl b/src/mainboard/google/stout/acpi/mainboard.asl
new file mode 100644
index 0000000000..4ea4a09766
--- /dev/null
+++ b/src/mainboard/google/stout/acpi/mainboard.asl
@@ -0,0 +1,46 @@
+/*
+ * 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
+ */
+
+Scope (\_SB)
+{
+	Device (LID0)
+	{
+		Name (_HID, EisaId("PNP0C0D"))
+		Name (_PRW, Package() {0x18, 4})
+
+		Method (_LID, 0)
+		{
+			Store (\_SB.PCI0.LPCB.EC0.HPLD, \LIDS)
+			Return (\LIDS)
+		}
+
+		Method (_PSW, 1)
+		{
+			// Enable/Disable LID as a wake source
+			Store (Arg0, \_SB.PCI0.LPCB.EC0.HWLO)
+		}
+	}
+
+	Device (PWRB)
+	{
+		Name (_HID, EisaId("PNP0C0C"))
+	}
+}
diff --git a/src/mainboard/google/stout/acpi/platform.asl b/src/mainboard/google/stout/acpi/platform.asl
new file mode 100644
index 0000000000..a90a16eb30
--- /dev/null
+++ b/src/mainboard/google/stout/acpi/platform.asl
@@ -0,0 +1,88 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2012 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
+ */
+
+/* The APM port can be used for generating software SMIs */
+
+OperationRegion (APMP, SystemIO, 0xb2, 2)
+Field (APMP, ByteAcc, NoLock, Preserve)
+{
+	APMC, 8,	// APM command
+	APMS, 8		// APM status
+}
+
+/* Port 80 POST */
+
+OperationRegion (POST, SystemIO, 0x80, 1)
+Field (POST, ByteAcc, Lock, Preserve)
+{
+	DBG0, 8
+}
+
+/* SMI I/O Trap */
+Method(TRAP, 1, Serialized)
+{
+	Store (Arg0, SMIF)	// SMI Function
+	Store (0, TRP0)		// Generate trap
+	Return (SMIF)		// Return value of SMI handler
+}
+
+/* The _PIC method is called by the OS to choose between interrupt
+ * routing via the i8259 interrupt controller or the APIC.
+ *
+ * _PIC is called with a parameter of 0 for i8259 configuration and
+ * with a parameter of 1 for Local Apic/IOAPIC configuration.
+ */
+
+Method(_PIC, 1)
+{
+	// Remember the OS' IRQ routing choice.
+	Store(Arg0, PICM)
+}
+
+/* The _PTS method (Prepare To Sleep) is called before the OS is
+ * entering a sleep state. The sleep state number is passed in Arg0
+ */
+
+Method(_PTS,1)
+{
+	// Notify EC to enter S3
+	Store(0x01, \_SB.PCI0.LPCB.EC0.S3FG)
+}
+
+/* The _WAK method is called on system wakeup */
+
+Method(_WAK,1)
+{
+	/* Update AC status */
+	Store (\_SB.PCI0.LPCB.EC0.ACPW, Local0)
+	if (LNotEqual (Local0, \PWRS)) {
+		Store (Local0, \PWRS)
+		Notify (\_SB.PCI0.LPCB.EC0.AC, 0x80)
+	}
+
+	/* Update LID status */
+	Store (NOT(\_SB.PCI0.LPCB.EC0.HPLD), Local0)
+	if (LNotEqual (Local0, \LIDS)) {
+		Store (Local0, \LIDS)
+		Notify (\_SB.LID0, 0x80)
+	}
+
+	Return(Package(){0,0})
+}
+
diff --git a/src/mainboard/google/stout/acpi/sandybridge_pci_irqs.asl b/src/mainboard/google/stout/acpi/sandybridge_pci_irqs.asl
new file mode 100644
index 0000000000..7ce8cd85fb
--- /dev/null
+++ b/src/mainboard/google/stout/acpi/sandybridge_pci_irqs.asl
@@ -0,0 +1,73 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2007-2009 coresystems GmbH
+ *
+ * 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
+ */
+
+/* This is board specific information: IRQ routing for Sandybridge */
+
+// PCI Interrupt Routing
+Method(_PRT)
+{
+	If (PICM) {
+		Return (Package() {
+			// Onboard graphics (IGD)	0:2.0
+			Package() { 0x0002ffff, 0, 0, 16 },
+			// XHCI	0:14.0
+			Package() { 0x0014ffff, 0, 0, 19 },
+			// High Definition Audio	0:1b.0
+			Package() { 0x001bffff, 0, 0, 16 },
+			// PCIe Root Ports		0:1c.x
+			Package() { 0x001cffff, 0, 0, 19 },
+			Package() { 0x001cffff, 1, 0, 20 },
+			Package() { 0x001cffff, 2, 0, 17 },
+			Package() { 0x001cffff, 3, 0, 18 },
+			// EHCI	#1			0:1d.0
+			Package() { 0x001dffff, 0, 0, 19 },
+			// EHCI	#2			0:1a.0
+			Package() { 0x001affff, 0, 0, 21 },
+			// LPC devices			0:1f.0
+			Package() { 0x001fffff, 0, 0, 17 },
+			Package() { 0x001fffff, 1, 0, 23 },
+			Package() { 0x001fffff, 2, 0, 16 },
+			Package() { 0x001fffff, 3, 0, 18 },
+		})
+	} Else {
+		Return (Package() {
+			// Onboard graphics (IGD)	0:2.0
+			Package() { 0x0002ffff, 0, \_SB.PCI0.LPCB.LNKA, 0 },
+			// XHCI   0:14.0
+			Package() { 0x0014ffff, 0, \_SB.PCI0.LPCB.LNKD, 0 },
+			// High Definition Audio	0:1b.0
+			Package() { 0x001bffff, 0, \_SB.PCI0.LPCB.LNKA, 0 },
+			// PCIe Root Ports		0:1c.x
+			Package() { 0x001cffff, 0, \_SB.PCI0.LPCB.LNKD, 0 },
+			Package() { 0x001cffff, 1, \_SB.PCI0.LPCB.LNKE, 0 },
+			Package() { 0x001cffff, 2, \_SB.PCI0.LPCB.LNKB, 0 },
+			Package() { 0x001cffff, 3, \_SB.PCI0.LPCB.LNKC, 0 },
+			// EHCI	#1			0:1d.0
+			Package() { 0x001dffff, 0, \_SB.PCI0.LPCB.LNKD, 0 },
+			// EHCI	#2			0:1a.0
+			Package() { 0x001affff, 0, \_SB.PCI0.LPCB.LNKF, 0 },
+			// LPC device			0:1f.0
+			Package() { 0x001fffff, 0, \_SB.PCI0.LPCB.LNKB, 0 },
+			Package() { 0x001fffff, 1, \_SB.PCI0.LPCB.LNKH, 0 },
+			Package() { 0x001fffff, 2, \_SB.PCI0.LPCB.LNKA, 0 },
+			Package() { 0x001fffff, 3, \_SB.PCI0.LPCB.LNKC, 0 },
+		})
+	}
+}
+
diff --git a/src/mainboard/google/stout/acpi/superio.asl b/src/mainboard/google/stout/acpi/superio.asl
new file mode 100644
index 0000000000..feb4210fbc
--- /dev/null
+++ b/src/mainboard/google/stout/acpi/superio.asl
@@ -0,0 +1,27 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2012 The ChromiumOS 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
+ */
+
+/* mainboard configuration */
+#include "../ec.h"
+
+#define SIO_EC_ENABLE_PS2K       // Enable PS/2 Keyboard
+#define SIO_ENABLE_PS2M          // Enable PS/2 Mouse
+
+/* ACPI code for EC SuperIO functions */
+#include <ec/quanta/it8518/acpi/superio.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))
+		}
+	}
+}
diff --git a/src/mainboard/google/stout/acpi/video.asl b/src/mainboard/google/stout/acpi/video.asl
new file mode 100644
index 0000000000..3ececa912b
--- /dev/null
+++ b/src/mainboard/google/stout/acpi/video.asl
@@ -0,0 +1,43 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2007-2009 coresystems GmbH
+ *
+ * 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
+ */
+
+// Brightness write
+Method (BRTW, 1, Serialized)
+{
+	// TODO
+}
+
+// Hot Key Display Switch
+Method (HKDS, 1, Serialized)
+{
+	// TODO
+}
+
+// Lid Switch Display Switch
+Method (LSDS, 1, Serialized)
+{
+	// TODO
+}
+
+// Brightness Notification
+Method(BRTN,1,Serialized)
+{
+	// TODO (no displays defined yet)
+}
+