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
64
65
66
67
68
69
70
71
72
73
74
75
76
77
|
/*
* Copyright 2004 Tyan Computer
* by yhlu@tyan.com
*/
#include <console/console.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <device/pci_ops.h>
#include "ck804.h"
static void ide_init(struct device *dev)
{
struct southbridge_nvidia_ck804_config *conf;
uint32_t dword;
uint16_t word;
uint8_t byte;
conf = dev->chip_info;
word = pci_read_config16(dev, 0x50);
/* Ensure prefetch is disabled. */
word &= ~((1 << 15) | (1 << 13));
if (conf->ide1_enable) {
/* Enable secondary IDE interface. */
word |= (1 << 0);
printk(BIOS_DEBUG, "IDE1 \t");
}
if (conf->ide0_enable) {
/* Enable primary IDE interface. */
word |= (1 << 1);
printk(BIOS_DEBUG, "IDE0\n");
}
word |= (1 << 12);
word |= (1 << 14);
pci_write_config16(dev, 0x50, word);
byte = 0x20; /* Latency: 64 --> 32 */
pci_write_config8(dev, 0xd, byte);
dword = pci_read_config32(dev, 0xf8);
dword |= 12;
pci_write_config32(dev, 0xf8, dword);
#if CONFIG_PCI_ROM_RUN == 1
pci_dev_init(dev);
#endif
}
static void lpci_set_subsystem(device_t dev, unsigned vendor, unsigned device)
{
pci_write_config32(dev, 0x40,
((device & 0xffff) << 16) | (vendor & 0xffff));
}
static struct pci_operations lops_pci = {
.set_subsystem = lpci_set_subsystem,
};
static struct device_operations ide_ops = {
.read_resources = pci_dev_read_resources,
.set_resources = pci_dev_set_resources,
.enable_resources = pci_dev_enable_resources,
.init = ide_init,
.scan_bus = 0,
// .enable = ck804_enable,
.ops_pci = &lops_pci,
};
static const struct pci_driver ide_driver __pci_driver = {
.ops = &ide_ops,
.vendor = PCI_VENDOR_ID_NVIDIA,
.device = PCI_DEVICE_ID_NVIDIA_CK804_IDE,
};
|
