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>
71 lines
2.0 KiB
C
71 lines
2.0 KiB
C
/*
|
|
* (C) Copyright 2003
|
|
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
|
*
|
|
* (c) Copyright 2008 Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
|
|
* (c) Copyright 2008 Renesas Solutions Corp.
|
|
*
|
|
* 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 <asm/byteorder.h>
|
|
|
|
#ifdef CONFIG_SYS_DEBUG
|
|
static void hexdump(unsigned char *buf, int len)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < len; i++) {
|
|
if ((i % 16) == 0)
|
|
printf("%s%08x: ", i ? "\n" : "",
|
|
(unsigned int)&buf[i]);
|
|
printf("%02x ", buf[i]);
|
|
}
|
|
printf("\n");
|
|
}
|
|
#endif
|
|
|
|
int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
|
|
{
|
|
/* Linux kernel load address */
|
|
void (*kernel) (void) = (void (*)(void))images->ep;
|
|
/* empty_zero_page */
|
|
unsigned char *param
|
|
= (unsigned char *)image_get_load(images->legacy_hdr_os);
|
|
/* Linux kernel command line */
|
|
char *cmdline = (char *)param + 0x100;
|
|
/* PAGE_SIZE */
|
|
unsigned long size = images->ep - (unsigned long)param;
|
|
char *bootargs = getenv("bootargs");
|
|
|
|
if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
|
|
return 1;
|
|
|
|
/* Setup parameters */
|
|
memset(param, 0, size); /* Clear zero page */
|
|
strcpy(cmdline, bootargs);
|
|
|
|
kernel();
|
|
/* does not return */
|
|
|
|
return 1;
|
|
}
|