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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2007-2008 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 <device/pci_def.h>
#include <device/pci_ids.h>
#ifndef __ROMCC__
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ops.h>
#define PCI_ID(VENDOR_ID, DEVICE_ID) \
((((DEVICE_ID) & 0xFFFF) << 16) | ((VENDOR_ID) & 0xFFFF))
#define PCI_DEV_INVALID 0
static inline device_t pci_locate_device(unsigned pci_id, device_t from)
{
return dev_find_device(pci_id >> 16, pci_id & 0xffff, from);
}
#endif
void soft_reset(void)
{
outb(0x04, 0xcf9);
}
void hard_reset(void)
{
outb(0x06, 0xcf9);
}
void full_reset(void)
{
device_t dev;
/* Enable power on after power fail... */
dev = pci_locate_device(PCI_ID(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_3100_LPC), 0);
if (dev != PCI_DEV_INVALID) {
unsigned byte;
byte = pci_read_config8(dev, 0xa4);
byte &= 0xfe;
pci_write_config8(dev, 0xa4, byte);
}
outb(0x0e, 0xcf9);
}
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