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author | Bartlomiej Sieka <tur@semihalf.com> | 2008-03-26 09:38:06 +0100 |
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committer | Bartlomiej Sieka <tur@semihalf.com> | 2008-03-26 09:38:06 +0100 |
commit | 27f33e9f45ef7f9685cbdc65066a1828e85dde4f (patch) | |
tree | 5828044d71e5caa3bec4d05c6c48793df0cd17a3 /lib_sh/bootm.c | |
parent | 18e69a35efbb078403db0c0063986470dad7d082 (diff) | |
parent | 388b82fddc7c05596f3f615f190da0448227dc82 (diff) | |
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Merge branch 'new-image' of git://www.denx.de/git/u-boot-testing
Conflicts:
common/cmd_bootm.c
cpu/mpc8xx/cpu.c
Signed-off-by: Bartlomiej Sieka <tur@semihalf.com>
Diffstat (limited to 'lib_sh/bootm.c')
-rw-r--r-- | lib_sh/bootm.c | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/lib_sh/bootm.c b/lib_sh/bootm.c new file mode 100644 index 0000000..49462c8 --- /dev/null +++ b/lib_sh/bootm.c @@ -0,0 +1,101 @@ +/* + * (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 + +extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]); + +#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 + +void do_bootm_linux (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[], + bootm_headers_t *images) +{ + ulong ep = 0; + char *bootargs = getenv("bootargs"); + + /* find kernel entry point */ + if (images->legacy_hdr_valid) { + ep = image_get_ep (images->legacy_hdr_os); +#if defined(CONFIG_FIT) + } else if (images->fit_uname_os) { + int ret = fit_image_get_entry (images->fit_hdr_os, + images->fit_noffset_os, &ep); + if (ret) { + puts ("Can't get entry point property!\n"); + goto error; + } +#endif + } else { + puts ("Could not find kernel entry point!\n"); + goto error; + } + void (*kernel) (void) = (void (*)(void))ep; + + if (!images->autostart) + return ; + + /* Setup parameters */ + memset(PARAM, 0, 0x1000); /* Clear zero page */ + strcpy(COMMAND_LINE, bootargs); + + kernel(); + /* does not return */ + return; + +error: + if (images->autostart) + do_reset (cmdtp, flag, argc, argv); + return; +} |