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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)
*
* See file CREDITS for list of people who contributed to this
* project.
*
* 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 <u-boot/zlib.h>
#include <asm/bootparam.h>
#include <asm/byteorder.h>
#include <asm/zimage.h>
#define COMMAND_LINE_OFFSET 0x9000
/*cmd_boot.c*/
int do_bootm_linux(int flag, int argc, char * const argv[],
bootm_headers_t *images)
{
struct boot_params *base_ptr = NULL;
ulong os_data, os_len;
image_header_t *hdr;
void *load_address;
#if defined(CONFIG_FIT)
const void *data;
size_t len;
#endif
if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
return 1;
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) {
ret = fit_image_get_data(images->fit_hdr_os,
images->fit_noffset_os, &data, &len);
if (ret) {
puts("Can't get image data/size!\n");
goto error;
}
os_data = (ulong)data;
os_len = (ulong)len;
#endif
} else {
puts("Could not find kernel image!\n");
goto error;
}
#ifdef CONFIG_CMD_ZBOOT
base_ptr = load_zimage((void *)os_data, os_len, &load_address);
#endif
if (NULL == base_ptr) {
printf("## Kernel loading failed ...\n");
goto error;
}
if (setup_zimage(base_ptr, (char *)base_ptr + COMMAND_LINE_OFFSET,
0, images->rd_start,
images->rd_end - images->rd_start)) {
printf("## Setting up boot parameters failed ...\n");
goto error;
}
#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, load_address);
/* does not return */
error:
return 1;
}
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