Linux Audio

Check our new training course

Embedded Linux Audio

Check our new training course
with Creative Commons CC-BY-SA
lecture materials

Bootlin logo

Elixir Cross Referencer

Open Menu / arch / ia64 / dig / setup.c
Loading...
 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
92
93
/*
 * Platform dependent support for Intel SoftSDV simulator.
 *
 * Copyright (C) 1999 Intel Corp.
 * Copyright (C) 1999 Hewlett-Packard Co
 * Copyright (C) 1999 David Mosberger-Tang <davidm@hpl.hp.com>
 * Copyright (C) 1999 VA Linux Systems
 * Copyright (C) 1999 Walt Drummond <drummond@valinux.com>
 * Copyright (C) 1999 Vijay Chander <vijay@engr.sgi.com>
 */
#include <linux/config.h>

#include <linux/init.h>
#include <linux/delay.h>
#include <linux/kernel.h>
#include <linux/kdev_t.h>
#include <linux/string.h>
#include <linux/tty.h>
#include <linux/console.h>
#include <linux/timex.h>
#include <linux/sched.h>
#include <linux/mc146818rtc.h>

#include <asm/io.h>
#include <asm/machvec.h>
#include <asm/system.h>

#ifdef CONFIG_IA64_FW_EMU
# include "../../kernel/fw-emu.c"
#endif

/*
 * This is here so we can use the CMOS detection in ide-probe.c to
 * determine what drives are present.  In theory, we don't need this
 * as the auto-detection could be done via ide-probe.c:do_probe() but
 * in practice that would be much slower, which is painful when
 * running in the simulator.  Note that passing zeroes in DRIVE_INFO
 * is sufficient (the IDE driver will autodetect the drive geometry).
 */
char drive_info[4*16];

unsigned char aux_device_present = 0xaa;	/* XXX remove this when legacy I/O is gone */

void __init
dig_setup (char **cmdline_p)
{
	unsigned int orig_x, orig_y, num_cols, num_rows, font_height;

	/*
	 * This assumes that the EFI partition is physical disk 1
	 * partition 1 and the Linux root disk is physical disk 1
	 * partition 2.
	 */
#ifdef CONFIG_IA64_LION_HACKS
	/* default to /dev/sda2 on Lion... */
	ROOT_DEV = to_kdev_t(0x0802);		/* default to second partition on first drive */
#else
	/* default to /dev/dha2 on BigSur... */
	ROOT_DEV = to_kdev_t(0x0302);		/* default to second partition on first drive */
#endif

#ifdef CONFIG_SMP
	init_smp_config();
#endif

	memset(&screen_info, 0, sizeof(screen_info));

	if (!ia64_boot_param.console_info.num_rows
	    || !ia64_boot_param.console_info.num_cols)
	{
		printk("dig_setup: warning: invalid screen-info, guessing 80x25\n");
		orig_x = 0;
		orig_y = 0;
		num_cols = 80;
		num_rows = 25;
		font_height = 16;
	} else {
		orig_x = ia64_boot_param.console_info.orig_x;
		orig_y = ia64_boot_param.console_info.orig_y;
		num_cols = ia64_boot_param.console_info.num_cols;
		num_rows = ia64_boot_param.console_info.num_rows;
		font_height = 400 / num_rows;
	}

	screen_info.orig_x = orig_x;
	screen_info.orig_y = orig_y;
	screen_info.orig_video_cols  = num_cols;
	screen_info.orig_video_lines = num_rows;
	screen_info.orig_video_points = font_height;
	screen_info.orig_video_mode = 3;	/* XXX fake */
	screen_info.orig_video_isVGA = 1;	/* XXX fake */
	screen_info.orig_video_ega_bx = 3;	/* XXX fake */
}