mirror of
https://github.com/u-boot/u-boot.git
synced 2024-12-04 01:53:27 +08:00
77 lines
2.1 KiB
C
77 lines
2.1 KiB
C
/*
|
|
* (C) Copyright 2008
|
|
* Jean-Christophe PLAGNIOL-VILLARD <jcplagniol@jcrosoft.com>
|
|
*
|
|
* 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 <image.h>
|
|
#include <asm/byteorder.h>
|
|
#include <asm/addrspace.h>
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
|
|
{
|
|
void (*theKernel) (int, char **, char **, int *);
|
|
char *bootargs = getenv ("bootargs");
|
|
char *start;
|
|
uint len;
|
|
|
|
/* find kernel entry point */
|
|
theKernel = (void (*)(int, char **, char **, int *))images->ep;
|
|
|
|
show_boot_progress (15);
|
|
|
|
debug ("## Transferring control to Linux (at address %08lx) ...\n",
|
|
(ulong) theKernel);
|
|
|
|
gd->bd->bi_boot_params = gd->bd->bi_memstart + (16 << 20) - 256;
|
|
debug ("%-12s= 0x%08lX\n", "boot_params", (ulong)gd->bd->bi_boot_params);
|
|
|
|
/* set Magic */
|
|
*(int32_t *)(gd->bd->bi_boot_params - 4) = 0x12345678;
|
|
/* set ram_size */
|
|
*(int32_t *)(gd->bd->bi_boot_params - 8) = gd->ram_size;
|
|
|
|
start = (char*)gd->bd->bi_boot_params;
|
|
|
|
len = strlen(bootargs);
|
|
|
|
strncpy(start, bootargs, len + 1);
|
|
|
|
start += len;
|
|
|
|
len = images->rd_end - images->rd_start;
|
|
if (len > 0) {
|
|
start += sprintf(start," rd_start=0x%08X rd_size=0x%0X",
|
|
(uint) UNCACHED_SDRAM (images->rd_start),
|
|
(uint) len);
|
|
}
|
|
|
|
/* we assume that the kernel is in place */
|
|
printf ("\nStarting kernel ...\n\n");
|
|
|
|
theKernel (0, NULL, NULL, 0);
|
|
/* does not return */
|
|
return 1;
|
|
}
|