3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
26 #include <asm/byteorder.h>
28 /* The SH kernel reads arguments from the empty zero page at location
29 * 0 at the start of SDRAM. The following are copied from
30 * arch/sh/kernel/setup.c and may require tweaking if the kernel sources
33 #define PARAM ((unsigned char *)CFG_SDRAM_BASE + 0x1000)
35 #define MOUNT_ROOT_RDONLY (*(unsigned long *) (PARAM+0x000))
36 #define RAMDISK_FLAGS (*(unsigned long *) (PARAM+0x004))
37 #define ORIG_ROOT_DEV (*(unsigned long *) (PARAM+0x008))
38 #define LOADER_TYPE (*(unsigned long *) (PARAM+0x00c))
39 #define INITRD_START (*(unsigned long *) (PARAM+0x010))
40 #define INITRD_SIZE (*(unsigned long *) (PARAM+0x014))
42 #define COMMAND_LINE ((char *) (PARAM+0x100))
44 #define RAMDISK_IMAGE_START_MASK 0x07FF
47 static void hexdump (unsigned char *buf, int len)
51 for (i = 0; i < len; i++) {
53 printf ("%s%08x: ", i ? "\n" : "", (unsigned int) &buf[i]);
54 printf ("%02x ", buf[i]);
60 int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
62 char *bootargs = getenv("bootargs");
64 void (*kernel) (void) = (void (*)(void))images->ep;
66 /* Setup parameters */
67 memset(PARAM, 0, 0x1000); /* Clear zero page */
68 strcpy(COMMAND_LINE, bootargs);