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
|
/* SPDX-License-Identifier: GPL-2.0-only */
#include <device/device.h>
#include <device/path.h>
#include <device/smbus.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <device/pci_ops.h>
#include <device/smbus_host.h>
#include <southbridge/intel/common/smbus_ops.h>
#include "pch.h"
static void pch_smbus_init(struct device *dev)
{
struct resource *res;
/* Enable clock gating */
pci_and_config16(dev, 0x80, ~((1 << 8) | (1 << 10) | (1 << 12) | (1 << 14)));
/* Set Receive Slave Address */
res = probe_resource(dev, PCI_BASE_ADDRESS_4);
if (res)
smbus_set_slave_addr(res->base, SMBUS_SLAVE_ADDR);
}
static struct device_operations smbus_ops = {
.read_resources = smbus_read_resources,
.set_resources = pci_dev_set_resources,
.enable_resources = pci_dev_enable_resources,
.scan_bus = scan_smbus,
.init = pch_smbus_init,
.ops_smbus_bus = &lops_smbus_bus,
.ops_pci = &pci_dev_ops_pci,
};
static const unsigned short pci_device_ids[] = {
PCI_DID_INTEL_LPT_H_SMBUS,
PCI_DID_INTEL_LPT_H_SMBUS_9,
PCI_DID_INTEL_LPT_LP_SMBUS,
PCI_DID_INTEL_WPT_LP_SMBUS,
0
};
static const struct pci_driver pch_smbus __pci_driver = {
.ops = &smbus_ops,
.vendor = PCI_VID_INTEL,
.devices = pci_device_ids,
};
|
