summaryrefslogtreecommitdiff
path: root/lib_i386/bootm.c
blob: 76bcf6cd85e3999d818ee060abce57f6ff46eb2e (plain)
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
/*
 * (C) Copyright 2002
 * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
 * Marius Groeger <mgroeger@sysgo.de>
 *
 * Copyright (C) 2001  Erik Mouw (J.A.K.Mouw@its.tudelft.nl)
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

#include <common.h>
#include <command.h>
#include <image.h>
#include <zlib.h>
#include <asm/byteorder.h>
#include <asm/zimage.h>

/*cmd_boot.c*/
extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);

void do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
		bootm_headers_t *images)
{
	void		*base_ptr;
	ulong		os_data, os_len;
	ulong		initrd_start, initrd_end;
	ulong		ep;
	image_header_t	*hdr;

	boot_get_ramdisk (cmdtp, flag, argc, argv, images,
			IH_ARCH_I386, &initrd_start, &initrd_end);

	if (images->legacy_hdr_valid) {
		hdr = images->legacy_hdr_os;
		if (image_check_type (hdr, IH_TYPE_MULTI)) {
			/* if multi-part image, we need to get first subimage */
			image_multi_getimg (hdr, 0, &os_data, &os_len);
		} else {
			/* otherwise get image data */
			os_data = image_get_data (hdr);
			os_len = image_get_data_size (hdr);
		}
#if defined(CONFIG_FIT)
	} else if (images->fit_uname_os) {
		fit_unsupported_reset ("I386 linux bootm");
		do_reset (cmdtp, flag, argc, argv);
#endif
	} else {
		puts ("Could not find kernel image!\n");
		do_reset (cmdtp, flag, argc, argv);
	}

	base_ptr = load_zimage ((void*)os_data, os_len,
			initrd_start, initrd_end - initrd_start, 0);

	if (NULL == base_ptr) {
		printf ("## Kernel loading failed ...\n");
		do_reset(cmdtp, flag, argc, argv);

	}

	if (!images->autostart)
		return ;

#ifdef DEBUG
	printf ("## Transferring control to Linux (at address %08x) ...\n",
		(u32)base_ptr);
#endif

	/* we assume that the kernel is in place */
	printf("\nStarting kernel ...\n\n");

	boot_zimage(base_ptr);

}