mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-11 15:37:23 +00:00
49c3a861d1
Add the ability to break the steps of the bootm command into several subcommands: start, loados, ramdisk, fdt, bdt, cmdline, prep, go. This allows us to do things like manipulate device trees before they are passed to a booting kernel or setup memory for a secondary core in multicore situations. Not all OS types support all subcommands (currently only start, loados, ramdisk, fdt, and go are supported). Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
94 lines
2.4 KiB
C
94 lines
2.4 KiB
C
/*
|
|
* (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*/
|
|
int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
|
|
{
|
|
void *base_ptr;
|
|
ulong os_data, os_len;
|
|
image_header_t *hdr;
|
|
|
|
#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;
|
|
}
|
|
|
|
base_ptr = load_zimage ((void*)os_data, os_len,
|
|
images->rd_start, images->rd_end - images->rd_start, 0);
|
|
|
|
if (NULL == base_ptr) {
|
|
printf ("## Kernel loading 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);
|
|
/* does not return */
|
|
|
|
error:
|
|
return 1;
|
|
}
|