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authorDuncan Laurie <dlaurie@chromium.org>2014-08-22 11:04:45 -0700
committerMarc Jones <marc.jones@se-eng.com>2015-03-27 06:03:52 +0100
commit3215dfb6efb7d6b8efca63f3bf0c309dd36c69f5 (patch)
treecaae858509a88ce3de21f9f6575645f981c86e35 /src
parent472d0cb4490dacf19a05b6d1f484f1876e34bd4c (diff)
downloadcoreboot-3215dfb6efb7d6b8efca63f3bf0c309dd36c69f5.tar.xz
broadwell: Add broadwell specific platform ASL
This can be shared between mainboards, they are still free to override if needed. BUG=chrome-os-partner:28234 BRANCH=none TEST=build and boot on samus Change-Id: I85fae6e254adcbda1c52410d5ba046f3f05b54c0 Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/213792 Reviewed-by: Aaron Durbin <adurbin@chromium.org> (cherry picked from commit 3e40cb804e7a95ce2183ebb3ef5d86820aef61b5) Signed-off-by: Marc Jones <marc.jones@se-eng.com> Reviewed-on: http://review.coreboot.org/8961 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@google.com>
Diffstat (limited to 'src')
-rw-r--r--src/soc/intel/broadwell/acpi/platform.asl78
1 files changed, 78 insertions, 0 deletions
diff --git a/src/soc/intel/broadwell/acpi/platform.asl b/src/soc/intel/broadwell/acpi/platform.asl
new file mode 100644
index 0000000000..2361fe8b3e
--- /dev/null
+++ b/src/soc/intel/broadwell/acpi/platform.asl
@@ -0,0 +1,78 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2007-2009 coresystems GmbH
+ * Copyright (C) 2014 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
+ */
+
+/* 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)
+{
+}
+
+/* The _WAK method is called on system wakeup */
+
+Method(_WAK,1)
+{
+ Return(Package(){0,0})
+}
+
+Method (_SWS)
+{
+ /* Index into PM1 for device that caused wake */
+ Return (\PM1I)
+}