mirror of
https://xff.cz/git/u-boot/
synced 2025-10-31 10:26:10 +01:00
40d7e99d37
There is no need for each OS specific function to call do_reset() we can just do it once in bootm. This means its feasible on an error for the OS boot function to return. Also, remove passing in cmd_tbl_t as its not needed by the OS boot functions. flag isn't currently used but might be in the future so we left it alone. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
76 lines
2.2 KiB
C
76 lines
2.2 KiB
C
/*
|
|
* (C) Copyright 2003
|
|
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
|
*
|
|
* 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>
|
|
|
|
/* The SH kernel reads arguments from the empty zero page at location
|
|
* 0 at the start of SDRAM. The following are copied from
|
|
* arch/sh/kernel/setup.c and may require tweaking if the kernel sources
|
|
* change.
|
|
*/
|
|
#define PARAM ((unsigned char *)CFG_SDRAM_BASE + 0x1000)
|
|
|
|
#define MOUNT_ROOT_RDONLY (*(unsigned long *) (PARAM+0x000))
|
|
#define RAMDISK_FLAGS (*(unsigned long *) (PARAM+0x004))
|
|
#define ORIG_ROOT_DEV (*(unsigned long *) (PARAM+0x008))
|
|
#define LOADER_TYPE (*(unsigned long *) (PARAM+0x00c))
|
|
#define INITRD_START (*(unsigned long *) (PARAM+0x010))
|
|
#define INITRD_SIZE (*(unsigned long *) (PARAM+0x014))
|
|
/* ... */
|
|
#define COMMAND_LINE ((char *) (PARAM+0x100))
|
|
|
|
#define RAMDISK_IMAGE_START_MASK 0x07FF
|
|
|
|
#ifdef CFG_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)
|
|
{
|
|
char *bootargs = getenv("bootargs");
|
|
|
|
void (*kernel) (void) = (void (*)(void))images->ep;
|
|
|
|
/* Setup parameters */
|
|
memset(PARAM, 0, 0x1000); /* Clear zero page */
|
|
strcpy(COMMAND_LINE, bootargs);
|
|
|
|
kernel();
|
|
/* does not return */
|
|
|
|
error:
|
|
return 1;
|
|
}
|