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
46 extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
49 static void hexdump (unsigned char *buf, int len)
53 for (i = 0; i < len; i++) {
55 printf ("%s%08x: ", i ? "\n" : "", (unsigned int) &buf[i]);
56 printf ("%02x ", buf[i]);
62 void do_bootm_linux (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
63 bootm_headers_t *images)
66 char *bootargs = getenv("bootargs");
68 /* find kernel entry point */
69 if (images->legacy_hdr_valid) {
70 ep = image_get_ep (images->legacy_hdr_os);
71 #if defined(CONFIG_FIT)
72 } else if (images->fit_uname_os) {
73 int ret = fit_image_get_entry (images->fit_hdr_os,
74 images->fit_noffset_os, &ep);
76 puts ("Can't get entry point property!\n");
81 puts ("Could not find kernel entry point!\n");
84 void (*kernel) (void) = (void (*)(void))ep;
86 if (!images->autostart)
89 /* Setup parameters */
90 memset(PARAM, 0, 0x1000); /* Clear zero page */
91 strcpy(COMMAND_LINE, bootargs);
98 if (images->autostart)
99 do_reset (cmdtp, flag, argc, argv);