blob: 41d9880f59c67092d306622f4f0c3e6be0cf59fc [file] [log] [blame]
/*
* This file is part of the coreboot project.
*
* 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.
*/
#define __SIMPLE_DEVICE__
#include <arch/io.h>
#include <reset.h>
#include <device/pci_ids.h>
#define PCI_DEV_INVALID (0xffffffffU)
static pci_devfn_t pci_io_locate_device_on_bus(unsigned pci_id, unsigned bus)
{
pci_devfn_t dev, last;
dev = PCI_DEV(bus, 0, 0);
last = PCI_DEV(bus, 31, 7);
for (; dev <= last; dev += PCI_DEV(0,0,1)) {
unsigned int id;
id = pci_io_read_config32(dev, 0);
if (id == pci_id) {
return dev;
}
}
return PCI_DEV_INVALID;
}
#include "../../../northbridge/amd/amdk8/reset_test.c"
void do_board_reset(void)
{
pci_devfn_t dev;
unsigned bus;
unsigned node = 0;
unsigned link = get_sblk();
/* Find the device.
* There can only be one 8111 on a hypertransport chain/bus.
*/
bus = node_link_to_bus(node, link);
dev = pci_io_locate_device_on_bus(
PCI_ID(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_ISA),
bus);
/* Reset */
set_bios_reset();
pci_io_write_config8(dev, 0x47, 1);
}