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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2008-2009 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
*/
#include <arch/io.h>
#include <console/console.h>
#include <cpu/x86/smm.h>
#include "southbridge/intel/i82801gx/nvs.h"
#include "southbridge/intel/i82801gx/i82801gx.h"
#include <pc80/mc146818rtc.h>
#include <delay.h>
#define GPE_EC_SCI 12
/* The southbridge SMI handler checks whether gnvs has a
* valid pointer before calling the trap handler
*/
extern global_nvs_t *gnvs;
static void mainboard_smm_init(void)
{
printk(BIOS_DEBUG, "initializing SMI\n");
}
int mainboard_io_trap_handler(int smif)
{
static int smm_initialized;
if (!smm_initialized) {
mainboard_smm_init();
smm_initialized = 1;
}
switch (smif) {
default:
return 0;
}
/* On success, the IO Trap Handler returns 1
* On failure, the IO Trap Handler returns a value != 1 */
return 1;
}
int mainboard_smi_apmc(u8 data)
{
switch(data) {
case APM_CNT_ACPI_ENABLE:
/* route H8SCI to SCI */
gpi_route_interrupt(GPE_EC_SCI, GPI_IS_SCI);
break;
case APM_CNT_ACPI_DISABLE:
/* route H8SCI# to SMI */
gpi_route_interrupt(GPE_EC_SCI, GPI_IS_SMI);
break;
default:
break;
}
return 0;
}
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