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
|
/* SPDX-License-Identifier: GPL-2.0-only */
/* This file is part of the coreboot project. */
#include <arch/io.h>
#include <edid.h>
#include <console/console.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <pc80/vga.h>
#include "../common/aspeed_coreboot.h"
#include "../common/ast_drv.h"
static void aspeed_ast2050_set_resources(struct device *dev)
{
/* Reserve VGA regions */
mmio_resource(dev, 3, 0xa0000 >> 10, 0x1ffff >> 10);
/* Run standard resource set routine */
pci_dev_set_resources(dev);
}
static void aspeed_ast2050_init(struct device *dev)
{
struct drm_device drm_dev;
drm_dev.pdev = dev;
printk(BIOS_INFO, "ASpeed AST2050: initializing video device\n");
ast_driver_load(&drm_dev, 0);
/* Unlock extended configuration registers */
outb(0x80, 0x3d4); outb(0xa8, 0x3d5);
/* Set CRT Request Threshold */
outb(0xa6, 0x3d4); outb(0x2f, 0x3d5);
outb(0xa7, 0x3d4); outb(0x3f, 0x3d5);
if (CONFIG(VGA_TEXT_FRAMEBUFFER)) {
/* Initialize standard VGA text mode */
vga_io_init();
vga_textmode_init();
printk(BIOS_INFO, "ASpeed VGA text mode initialized\n");
/* if we don't have console, at least print something... */
vga_line_write(0, "ASpeed VGA text mode initialized");
} else if (CONFIG(GENERIC_LINEAR_FRAMEBUFFER)) {
ast_driver_framebuffer_init(&drm_dev, 0);
printk(BIOS_INFO, "ASpeed high resolution framebuffer initialized\n");
}
}
static struct device_operations aspeed_ast2050_ops = {
.read_resources = pci_dev_read_resources,
.set_resources = aspeed_ast2050_set_resources,
.enable_resources = pci_dev_enable_resources,
.init = aspeed_ast2050_init,
};
static const struct pci_driver aspeed_ast2050_driver __pci_driver = {
.ops = &aspeed_ast2050_ops,
.vendor = PCI_VENDOR_ID_ASPEED,
.device = PCI_DEVICE_ID_ASPEED_AST2050_VGA,
};
|
