1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
|
/*
* 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; either version 2 of the License, or
* (at your option) any later version.
*
* 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 <console/console.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <device/pci_ops.h>
#include "i82801db.h"
static void pci_init(struct device *dev)
{
uint32_t dword;
uint16_t word;
/* Clear system errors */
word = pci_read_config16(dev, 0x06);
word |= 0xf900; /* Clear possible errors */
pci_write_config16(dev, 0x06, word);
#if 0
/* System error enable */
dword = pci_read_config32(dev, 0x04);
dword |= (1<<8); /* SERR# Enable */
dword |= (1<<6); /* Parity Error Response */
pci_write_config32(dev, 0x04, dword);
#endif
word = pci_read_config16(dev, 0x1e);
word |= 0xf800; /* Clear possible errors */
pci_write_config16(dev, 0x1e, word);
}
static struct device_operations pci_ops = {
.read_resources = pci_bus_read_resources,
.set_resources = pci_dev_set_resources,
.enable_resources = pci_bus_enable_resources,
.init = pci_init,
.scan_bus = pci_scan_bridge,
.ops_pci = 0,
};
static const struct pci_driver pci_driver __pci_driver = {
.ops = &pci_ops,
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_82801DB_PCI,
};
|
