3 * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
4 * Marius Groeger <mgroeger@sysgo.de>
6 * Copyright (C) 2001 Erik Mouw (J.A.K.Mouw@its.tudelft.nl)
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.
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.
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
28 #include <asm/byteorder.h>
29 #include <asm/zimage.h>
32 extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
34 void do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
35 image_header_t *hdr, int verify)
39 ulong os_data, os_len;
40 ulong rd_data, rd_len;
41 ulong initrd_start, initrd_end;
42 image_header_t *rd_hdr;
45 * Check if there is an initrd image
48 rd_hdr = (image_header_t *)simple_strtoul (argv[2], NULL, 16);
49 printf ("## Loading Ramdisk Image at %08lx ...\n", rd_hdr);
51 if (!image_check_magic (rd_hdr)) {
52 printf ("Bad Magic Number\n");
53 do_reset (cmdtp, flag, argc, argv);
56 if (!image_check_hcrc (rd_hdr)) {
57 printf ("Bad Header Checksum\n");
58 do_reset (cmdtp, flag, argc, argv);
61 print_image_hdr (rd_hdr);
63 rd_data = image_get_data (rd_hdr);
64 rd_len = image_get_data_size (rd_hdr);
67 printf (" Verifying Checksum ... ");
68 if (!image_check_dcrc (rd_hdr)) {
69 printf ("Bad Data CRC\n");
70 do_reset (cmdtp, flag, argc, argv);
75 if (!image_check_os (rd_hdr, IH_OS_LINUX) ||
76 !image_check_arch (rd_hdr, IH_ARCH_I386) ||
77 !image_check_type (rd_hdr, IH_TYPE_RAMDISK)) {
78 printf ("No Linux i386 Ramdisk Image\n");
79 do_reset (cmdtp, flag, argc, argv);
83 * Now check if we have a multifile image
85 } else if (image_check_type (hdr, IH_TYPE_MULTI)) {
87 * Get second entry data start address and len
89 image_multi_getimg (hdr, 1, &rd_data, &rd_len);
99 printf ("No initrd\n");
104 initrd_start = rd_data;
105 initrd_end = initrd_start + rd_len;
106 printf (" Loading Ramdisk to %08lx, end %08lx ... ",
107 initrd_start, initrd_end);
108 memmove ((void *)initrd_start, (void *)rd_data, rd_len);
115 /* if multi-part image, we need to advance base ptr */
116 if (image_check_type (hdr, IH_TYPE_MULTI)) {
117 image_multi_getimg (hdr, 0, &os_data, &os_len);
119 os_data = image_get_data (hdr);
120 os_len = image_get_data_size (hdr);
123 base_ptr = load_zimage ((void*)os_data, os_len,
124 initrd_start, rd_len, 0);
126 if (NULL == base_ptr) {
127 printf ("## Kernel loading failed ...\n");
128 do_reset(cmdtp, flag, argc, argv);
133 printf ("## Transferring control to Linux (at address %08x) ...\n",
137 /* we assume that the kernel is in place */
138 printf("\nStarting kernel ...\n\n");
140 boot_zimage(base_ptr);