sb/intel/lynxpoint: Add a common platform.asl file

The platform.asl file is copied from sb/intel/bd82x6x, and also matches
the contents deleted from each mainboard's platform.asl.

Tested on an ASRock H81M-HDS and a Google Peppy board (variant of
Slippy). No issues arose from this patch.

Change-Id: I539e401ce9af83070f69147526ca3b1c122f042c
Signed-off-by: Tristan Corrick <tristan@corrick.kiwi>
Reviewed-on: https://review.coreboot.org/29386
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>

1 files changed, 53 insertions, 0 deletions

diff --git a/src/southbridge/intel/lynxpoint/acpi/platform.asl b/src/southbridge/intel/lynxpoint/acpi/platform.asl
new file mode 100644
index 0000000000..e37066887b
--- /dev/null
+++ b/src/southbridge/intel/lynxpoint/acpi/platform.asl
@@ -0,0 +1,53 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2011-2012 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.
+ */
+
+/* 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)
+}