src/soc/intel/braswell/acpi/platform.asl

/*
 * This file is part of the coreboot project.
 *
 * Copyright (C) 2007-2009 coresystems GmbH
 * Copyright (C) 2012 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.
 */

/* Enable ACPI _SWS methods */
#include <soc/intel/common/acpi/acpi_wake_source.asl>

/* 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})
}