LXR uboot/lib_sh/bootm.c

   1/*
   2 * (C) Copyright 2003
   3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   4 *
   5 * (c) Copyright 2008 Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
   6 * (c) Copyright 2008 Renesas Solutions Corp.
   7 *
   8 * See file CREDITS for list of people who contributed to this
   9 * project.
  10 *
  11 * This program is free software; you can redistribute it and/or modify
  12 * it under the terms of the GNU General Public License as published by
  13 * the Free Software Foundation; either version 2 of the License, or
  14 * (at your option) any later version.
  15 *
  16 * This program is distributed in the hope that it will be useful,
  17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 * GNU General Public License for more details.
  20 *
  21 * You should have received a copy of the GNU General Public License
  22 * along with this program; if not, write to the Free Software
  23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  24 *
  25 */
  26
  27#include <common.h>
  28#include <command.h>
  29#include <asm/byteorder.h>
  30
  31#ifdef CONFIG_SYS_DEBUG
  32static void hexdump(unsigned char *buf, int len)
  33{
  34        int i;
  35
  36        for (i = 0; i < len; i++) {
  37                if ((i % 16) == 0)
  38                        printf("%s%08x: ", i ? "\n" : "",
  39                                                        (unsigned int)&buf[i]);
  40                printf("%02x ", buf[i]);
  41        }
  42        printf("\n");
  43}
  44#endif
  45
  46int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
  47{
  48        /* Linux kernel load address */
  49        void (*kernel) (void) = (void (*)(void))images->ep;
  50        /* empty_zero_page */
  51        unsigned char *param
  52                = (unsigned char *)image_get_load(images->legacy_hdr_os);
  53        /* Linux kernel command line */
  54        char *cmdline = (char *)param + 0x100;
  55        /* PAGE_SIZE */
  56        unsigned long size = images->ep - (unsigned long)param;
  57        char *bootargs = getenv("bootargs");
  58
  59        if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
  60                return 1;
  61
  62        /* Setup parameters */
  63        memset(param, 0, size); /* Clear zero page */
  64        strcpy(cmdline, bootargs);
  65
  66        kernel();
  67        /* does not return */
  68
  69        return 1;
  70}
  71