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wdenk2262cfe2002-11-18 00:14:45 +00001/*
2 * (C) Copyright 2002
3 * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
4 * Marius Groeger <mgroeger@sysgo.de>
5 *
6 * Copyright (C) 2001 Erik Mouw (J.A.K.Mouw@its.tudelft.nl)
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 */
23
24#include <common.h>
25#include <command.h>
wdenk2262cfe2002-11-18 00:14:45 +000026#include <image.h>
Jean-Christophe PLAGNIOL-VILLARDa31e0912009-04-04 12:49:11 +020027#include <u-boot/zlib.h>
wdenk2262cfe2002-11-18 00:14:45 +000028#include <asm/byteorder.h>
29#include <asm/zimage.h>
30
wdenk8bde7f72003-06-27 21:31:46 +000031/*cmd_boot.c*/
Kumar Gala40d7e992008-08-15 08:24:45 -050032int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
wdenk2262cfe2002-11-18 00:14:45 +000033{
Marian Balakowiczd5934ad2008-02-04 08:28:09 +010034 void *base_ptr;
35 ulong os_data, os_len;
Marian Balakowiczd5934ad2008-02-04 08:28:09 +010036 image_header_t *hdr;
Graeme Russ3ef96de2008-09-07 07:08:42 +100037
Marian Balakowiczcd7c5962008-03-12 10:33:00 +010038#if defined(CONFIG_FIT)
39 const void *data;
40 size_t len;
41#endif
wdenk8bde7f72003-06-27 21:31:46 +000042
Kumar Gala49c3a862008-10-21 17:25:45 -050043 if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
44 return 1;
45
Marian Balakowiczd5934ad2008-02-04 08:28:09 +010046 if (images->legacy_hdr_valid) {
47 hdr = images->legacy_hdr_os;
48 if (image_check_type (hdr, IH_TYPE_MULTI)) {
49 /* if multi-part image, we need to get first subimage */
50 image_multi_getimg (hdr, 0, &os_data, &os_len);
51 } else {
52 /* otherwise get image data */
53 os_data = image_get_data (hdr);
54 os_len = image_get_data_size (hdr);
55 }
56#if defined(CONFIG_FIT)
57 } else if (images->fit_uname_os) {
Marian Balakowiczcd7c5962008-03-12 10:33:00 +010058 ret = fit_image_get_data (images->fit_hdr_os,
59 images->fit_noffset_os, &data, &len);
60 if (ret) {
61 puts ("Can't get image data/size!\n");
62 goto error;
63 }
64 os_data = (ulong)data;
65 os_len = (ulong)len;
Marian Balakowiczd5934ad2008-02-04 08:28:09 +010066#endif
Marian Balakowiczf13e7b22008-01-08 18:12:17 +010067 } else {
Marian Balakowiczd5934ad2008-02-04 08:28:09 +010068 puts ("Could not find kernel image!\n");
Marian Balakowiczcd7c5962008-03-12 10:33:00 +010069 goto error;
Wolfgang Denke6446702006-07-21 11:30:18 +020070 }
71
Marian Balakowiczf13e7b22008-01-08 18:12:17 +010072 base_ptr = load_zimage ((void*)os_data, os_len,
Kumar Galac4f94192008-08-15 08:24:37 -050073 images->rd_start, images->rd_end - images->rd_start, 0);
wdenk2262cfe2002-11-18 00:14:45 +000074
75 if (NULL == base_ptr) {
76 printf ("## Kernel loading failed ...\n");
Marian Balakowiczcd7c5962008-03-12 10:33:00 +010077 goto error;
wdenk8bde7f72003-06-27 21:31:46 +000078
wdenk2262cfe2002-11-18 00:14:45 +000079 }
wdenk8bde7f72003-06-27 21:31:46 +000080
wdenk2262cfe2002-11-18 00:14:45 +000081#ifdef DEBUG
82 printf ("## Transferring control to Linux (at address %08x) ...\n",
83 (u32)base_ptr);
84#endif
wdenk8bde7f72003-06-27 21:31:46 +000085
wdenk2262cfe2002-11-18 00:14:45 +000086 /* we assume that the kernel is in place */
87 printf("\nStarting kernel ...\n\n");
wdenk8bde7f72003-06-27 21:31:46 +000088
wdenk2262cfe2002-11-18 00:14:45 +000089 boot_zimage(base_ptr);
Marian Balakowiczcd7c5962008-03-12 10:33:00 +010090 /* does not return */
wdenk8bde7f72003-06-27 21:31:46 +000091
Marian Balakowiczcd7c5962008-03-12 10:33:00 +010092error:
Kumar Gala40d7e992008-08-15 08:24:45 -050093 return 1;
wdenk2262cfe2002-11-18 00:14:45 +000094}