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authorVladimir Serbinenko <phcoder@gmail.com>2014-10-16 10:39:06 +0200
committerVladimir Serbinenko <phcoder@gmail.com>2014-12-03 21:02:50 +0100
commit24813c1490b016a10d91acbb9cc26c5b030f7314 (patch)
tree521261a36080555757335c196bdf8b1d40983430 /src/southbridge/intel/i82801gx
parent4aad743434516d6c96f1afe21dd00b631e2c3692 (diff)
i945: Consolidate acpi/platform.asl
Change-Id: Iccb2dda8a427e483c04693e46b00e0bc2452a26b Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com> Reviewed-on: http://review.coreboot.org/7086 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Diffstat (limited to 'src/southbridge/intel/i82801gx')
-rw-r--r--src/southbridge/intel/i82801gx/acpi/platform.asl105
1 files changed, 105 insertions, 0 deletions
diff --git a/src/southbridge/intel/i82801gx/acpi/platform.asl b/src/southbridge/intel/i82801gx/acpi/platform.asl
new file mode 100644
index 0000000000..2b8a59ea4f
--- /dev/null
+++ b/src/southbridge/intel/i82801gx/acpi/platform.asl
@@ -0,0 +1,105 @@
+/*
+ * 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
+ */
+
+/* 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)
+}
+
+Method(GOS, 0)
+{
+ /* Determine the Operating System and save the value in OSYS.
+ * We have to do this in order to be able to work around
+ * certain windows bugs.
+ *
+ * OSYS value | Operating System
+ * -----------+------------------
+ * 2000 | Windows 2000
+ * 2001 | Windows XP(+SP1)
+ * 2002 | Windows XP SP2
+ * 2006 | Windows Vista
+ * ???? | Windows 7
+ */
+
+ /* Let's assume we're running at least Windows 2000 */
+ Store (2000, OSYS)
+
+ If (CondRefOf(_OSI, Local0)) {
+ /* Linux answers _OSI with "True" for a couple of
+ * Windows version queries. But unlike Windows it
+ * needs a Video repost, so let's determine whether
+ * we're running Linux.
+ */
+
+ If (_OSI("Linux")) {
+ Store (1, LINX)
+ }
+
+ If (_OSI("Windows 2001")) {
+ Store (2001, OSYS)
+ }
+
+ If (_OSI("Windows 2001 SP1")) {
+ Store (2001, OSYS)
+ }
+
+ If (_OSI("Windows 2001 SP2")) {
+ Store (2002, OSYS)
+ }
+
+ If (_OSI("Windows 2006")) {
+ Store (2006, OSYS)
+ }
+ }
+}