mirror of
https://github.com/AsahiLinux/u-boot
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75 lines
2.3 KiB
C
75 lines
2.3 KiB
C
/*
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* (C) Copyright 2003
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include <common.h>
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#include <command.h>
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#include <asm/byteorder.h>
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extern image_header_t header; /* common/cmd_bootm.c */
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/* The SH kernel reads arguments from the empty zero page at location
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* 0 at the start of SDRAM. The following are copied from
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* arch/sh/kernel/setup.c and may require tweaking if the kernel sources
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* change.
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*/
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#define PARAM ((unsigned char *)CFG_SDRAM_BASE + 0x1000)
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#define MOUNT_ROOT_RDONLY (*(unsigned long *) (PARAM+0x000))
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#define RAMDISK_FLAGS (*(unsigned long *) (PARAM+0x004))
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#define ORIG_ROOT_DEV (*(unsigned long *) (PARAM+0x008))
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#define LOADER_TYPE (*(unsigned long *) (PARAM+0x00c))
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#define INITRD_START (*(unsigned long *) (PARAM+0x010))
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#define INITRD_SIZE (*(unsigned long *) (PARAM+0x014))
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/* ... */
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#define COMMAND_LINE ((char *) (PARAM+0x100))
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#define RAMDISK_IMAGE_START_MASK 0x07FF
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#ifdef CFG_DEBUG
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static void hexdump (unsigned char *buf, int len)
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{
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int i;
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for (i = 0; i < len; i++) {
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if ((i % 16) == 0)
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printf ("%s%08x: ", i ? "\n" : "", (unsigned int) &buf[i]);
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printf ("%02x ", buf[i]);
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}
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printf ("\n");
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}
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#endif
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void do_bootm_linux (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
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ulong addr, ulong *len_ptr, int verify)
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{
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image_header_t *hdr = &header;
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char *bootargs = getenv("bootargs");
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void (*kernel) (void) = (void (*)(void)) ntohl (hdr->ih_ep);
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/* Setup parameters */
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memset(PARAM, 0, 0x1000); /* Clear zero page */
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strcpy(COMMAND_LINE, bootargs);
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kernel();
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}
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