xref: /openbmc/u-boot/arch/microblaze/lib/bootm.c (revision a4145534)
1 /*
2  * (C) Copyright 2007 Michal Simek
3  * (C) Copyright 2004 Atmark Techno, Inc.
4  *
5  * Michal  SIMEK <monstr@monstr.eu>
6  * Yasushi SHOJI <yashi@atmark-techno.com>
7  *
8  * See file CREDITS for list of people who contributed to this
9  * project.
10  *
11  * This program is free software; you can redistribute it and/or
12  * modify it under the terms of the GNU General Public License as
13  * published by the Free Software Foundation; either version 2 of
14  * the License, or (at your option) any later version.
15  *
16  * This program is distributed in the hope that it will be useful,
17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
19  * GNU General Public License for more details.
20  *
21  * You should have received a copy of the GNU General Public License
22  * along with this program; if not, write to the Free Software
23  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
24  * MA 02111-1307 USA
25  */
26 
27 #include <common.h>
28 #include <command.h>
29 #include <image.h>
30 #include <u-boot/zlib.h>
31 #include <asm/byteorder.h>
32 
33 DECLARE_GLOBAL_DATA_PTR;
34 
35 int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
36 {
37 	/* First parameter is mapped to $r5 for kernel boot args */
38 	void	(*theKernel) (char *);
39 	char	*commandline = getenv ("bootargs");
40 
41 	if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
42 		return 1;
43 
44 	theKernel = (void (*)(char *))images->ep;
45 
46 	show_boot_progress (15);
47 
48 #ifdef DEBUG
49 	printf ("## Transferring control to Linux (at address %08lx) ...\n",
50 		(ulong) theKernel);
51 #endif
52 
53 	theKernel (commandline);
54 	/* does not return */
55 
56 	return 1;
57 }
58