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/*
* (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[],
image_header_t *hdr, int verify)
{
void *base_ptr;
ulong os_data, os_len;
ulong rd_data, rd_len;
ulong initrd_start, initrd_end;
image_header_t *rd_hdr;
/*
* Check if there is an initrd image
*/
if (argc >= 3) {
rd_hdr = (image_header_t *)simple_strtoul (argv[2], NULL, 16);
printf ("## Loading Ramdisk Image at %08lx ...\n", rd_hdr);
if (!image_check_magic (rd_hdr)) {
printf ("Bad Magic Number\n");
do_reset (cmdtp, flag, argc, argv);
}
if (!image_check_hcrc (rd_hdr)) {
printf ("Bad Header Checksum\n");
do_reset (cmdtp, flag, argc, argv);
}
print_image_hdr (rd_hdr);
rd_data = image_get_data (rd_hdr);
rd_len = image_get_data_size (rd_hdr);
if (verify) {
printf (" Verifying Checksum ... ");
if (!image_check_dcrc (rd_hdr)) {
printf ("Bad Data CRC\n");
do_reset (cmdtp, flag, argc, argv);
}
printf ("OK\n");
}
if (!image_check_os (rd_hdr, IH_OS_LINUX) ||
!image_check_arch (rd_hdr, IH_ARCH_I386) ||
!image_check_type (rd_hdr, IH_TYPE_RAMDISK)) {
printf ("No Linux i386 Ramdisk Image\n");
do_reset (cmdtp, flag, argc, argv);
}
/*
* Now check if we have a multifile image
*/
} else if (image_check_type (hdr, IH_TYPE_MULTI)) {
/*
* Get second entry data start address and len
*/
image_multi_getimg (hdr, 1, &rd_data, &rd_len);
} else {
/*
* no initrd image
*/
rd_data = rd_len = 0;
}
#ifdef DEBUG
if (!rd_data) {
printf ("No initrd\n");
}
#endif
if (rd_data) {
initrd_start = rd_data;
initrd_end = initrd_start + rd_len;
printf (" Loading Ramdisk to %08lx, end %08lx ... ",
initrd_start, initrd_end);
memmove ((void *)initrd_start, (void *)rd_data, rd_len);
printf ("OK\n");
} else {
initrd_start = 0;
initrd_end = 0;
}
/* if multi-part image, we need to advance base ptr */
if (image_check_type (hdr, IH_TYPE_MULTI)) {
image_multi_getimg (hdr, 0, &os_data, &os_len);
} else {
os_data = image_get_data (hdr);
os_len = image_get_data_size (hdr);
}
base_ptr = load_zimage ((void*)os_data, os_len,
initrd_start, rd_len, 0);
if (NULL == base_ptr) {
printf ("## Kernel loading failed ...\n");
do_reset(cmdtp, flag, argc, argv);
}
#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);
}
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