mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-10 23:24:38 +00:00
cb1c489690
Before new uImage code was merged, bootm code allowed for the kernel image to get overwritten during decompresion. new uImage introduced a check for image overwrites and refused to boot the image that got overwritten. This patch restores the old behavior. It also adds a warning when the image overwriten is a multi-image file, because in such case accessing componentes other than the first one will fail. Signed-off-by: Marian Balakowicz <m8@semihalf.com>
79 lines
1.6 KiB
C
79 lines
1.6 KiB
C
/*
|
|
* U-boot - bootm.c - misc boot helper functions
|
|
*
|
|
* Copyright (c) 2005-2008 Analog Devices Inc.
|
|
*
|
|
* (C) Copyright 2000-2004
|
|
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
|
*
|
|
* Licensed under the GPL-2 or later.
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <command.h>
|
|
#include <image.h>
|
|
#include <asm/blackfin.h>
|
|
|
|
extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
|
|
|
|
#ifdef SHARED_RESOURCES
|
|
extern void swap_to(int device_id);
|
|
#endif
|
|
|
|
static char *make_command_line(void)
|
|
{
|
|
char *dest = (char *)CMD_LINE_ADDR;
|
|
char *bootargs = getenv("bootargs");
|
|
|
|
if (bootargs == NULL)
|
|
return NULL;
|
|
|
|
strncpy(dest, bootargs, 0x1000);
|
|
dest[0xfff] = 0;
|
|
return dest;
|
|
}
|
|
|
|
void do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
|
|
bootm_headers_t *images)
|
|
{
|
|
int (*appl) (char *cmdline);
|
|
char *cmdline;
|
|
ulong ep = 0;
|
|
|
|
if (!images->autostart)
|
|
return;
|
|
|
|
#ifdef SHARED_RESOURCES
|
|
swap_to(FLASH);
|
|
#endif
|
|
|
|
/* find kernel entry point */
|
|
if (images->legacy_hdr_valid) {
|
|
ep = image_get_ep (&images->legacy_hdr_os_copy);
|
|
#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;
|
|
}
|
|
appl = (int (*)(char *))ep;
|
|
|
|
printf("Starting Kernel at = %x\n", appl);
|
|
cmdline = make_command_line();
|
|
icache_disable();
|
|
dcache_disable();
|
|
(*appl) (cmdline);
|
|
/* does not return */
|
|
return;
|
|
|
|
error:
|
|
if (images->autostart)
|
|
do_reset (cmdtp, flag, argc, argv);
|
|
}
|