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
78
79
80
81
82
83
84
85
86
87
88
89
90
91
|
#include <console/console.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ops.h>
#include <device/pci_ids.h>
#include <pc80/keyboard.h>
#include <pc80/i8259.h>
#include "chip.h"
/*
* Base VT8235.
*/
void hard_reset(void)
{
printk(BIOS_ERR, "NO HARD RESET ON VT8235! FIX ME!\n");
}
static void keyboard_on(struct device *dev)
{
unsigned char regval;
regval = pci_read_config8(dev, 0x51);
regval |= 0x05;
regval &= 0xfd;
pci_write_config8(dev, 0x51, regval);
pc_keyboard_init(0);
}
void dump_south(device_t dev0)
{
int i,j;
for(i = 0; i < 256; i += 16) {
printk(BIOS_DEBUG, "0x%x: ", i);
for(j = 0; j < 16; j++) {
printk(BIOS_DEBUG, "%02x ", pci_read_config8(dev0, i+j));
}
printk(BIOS_DEBUG, "\n");
}
}
void set_led()
{
// set power led to steady now that lxbios has virtually done its job
device_t dev;
dev = dev_find_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, 0);
pci_write_config8(dev, 0x94, 0xb0);
}
static void vt8235_enable(struct device *dev)
{
unsigned char regval;
unsigned short vendor,model;
vendor = pci_read_config16(dev,0);
model = pci_read_config16(dev,0x2);
printk(BIOS_DEBUG, "In vt8235_enable %04x %04x.\n",vendor,model);
/* if this is not the southbridge itself just return */
/* this is necessary because USB devices are slot 10, whereas this device is slot 11
therefore usb devices get called first during the bus scan */
if( (vendor != PCI_VENDOR_ID_VIA) || (model != PCI_DEVICE_ID_VIA_8235))
return;
printk(BIOS_DEBUG, "Initialising Devices\n");
setup_i8259(); // make sure interupt controller is configured before keyboard init
/* enable RTC and ethernet */
regval = pci_read_config8(dev, 0x51);
regval |= 0x18;
pci_write_config8(dev, 0x51, regval);
/* turn on keyboard */
keyboard_on(dev);
/* enable USB 1.1 & USB 2.0 -redundant really since we've already been there - see note above*/
regval = pci_read_config8(dev, 0x50);
regval &= ~(0x36);
pci_write_config8(dev, 0x50, regval);
}
struct chip_operations southbridge_via_vt8235_ops = {
CHIP_NAME("VIA VT8235 Southbridge")
.enable_dev = vt8235_enable,
};
|
