From 3215dfb6efb7d6b8efca63f3bf0c309dd36c69f5 Mon Sep 17 00:00:00 2001 From: Duncan Laurie Date: Fri, 22 Aug 2014 11:04:45 -0700 Subject: 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 Reviewed-on: https://chromium-review.googlesource.com/213792 Reviewed-by: Aaron Durbin (cherry picked from commit 3e40cb804e7a95ce2183ebb3ef5d86820aef61b5) Signed-off-by: Marc Jones Reviewed-on: http://review.coreboot.org/8961 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin --- src/soc/intel/broadwell/acpi/platform.asl | 78 +++++++++++++++++++++++++++++++ 1 file changed, 78 insertions(+) create mode 100644 src/soc/intel/broadwell/acpi/platform.asl (limited to 'src/soc/intel/broadwell/acpi') 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) +} -- cgit v1.2.3