mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-19 11:18:28 +00:00
73 lines
1.3 KiB
C
73 lines
1.3 KiB
C
/*
|
|
* (C) Copyright 2001
|
|
* Wave 7 Optics, Inc.
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <config.h>
|
|
#include <command.h>
|
|
#include <elf.h>
|
|
|
|
/*
|
|
* FIXME: Add code to test image and it's header.
|
|
*/
|
|
static int
|
|
image_check(ulong addr)
|
|
{
|
|
return valid_elf_image(addr);
|
|
}
|
|
|
|
void
|
|
init_fsboot(void)
|
|
{
|
|
char *envp;
|
|
ulong loadaddr;
|
|
ulong testaddr;
|
|
ulong alt_loadaddr;
|
|
char buf[9];
|
|
|
|
/*
|
|
* Get test image address
|
|
*/
|
|
if ((envp = getenv("testaddr")) != NULL)
|
|
testaddr = simple_strtoul(envp, NULL, 16);
|
|
else
|
|
testaddr = -1;
|
|
|
|
/*
|
|
* Are we going to test boot and image?
|
|
*/
|
|
if ((testaddr != -1) && image_check(testaddr)) {
|
|
|
|
/* Set alt_loadaddr */
|
|
alt_loadaddr = testaddr;
|
|
sprintf(buf, "%lX", alt_loadaddr);
|
|
setenv("alt_loadaddr", buf);
|
|
|
|
/* Clear test_addr */
|
|
setenv("testaddr", NULL);
|
|
|
|
/*
|
|
* Save current environment with alt_loadaddr,
|
|
* and cleared testaddr.
|
|
*/
|
|
saveenv();
|
|
|
|
/*
|
|
* Setup temporary loadaddr to alt_loadaddr
|
|
* XXX - DO NOT SAVE ENVIRONMENT!
|
|
*/
|
|
loadaddr = alt_loadaddr;
|
|
sprintf(buf, "%lX", loadaddr);
|
|
setenv("loadaddr", buf);
|
|
|
|
} else { /* Normal boot */
|
|
setenv("alt_loadaddr", NULL); /* Clear alt_loadaddr */
|
|
setenv("testaddr", NULL); /* Clear testaddr */
|
|
saveenv();
|
|
}
|
|
|
|
return;
|
|
}
|