mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-19 03:08:31 +00:00
18304f7675
The only environment type that uses this variable is spi flash, and that is only because it is reimplementing the common set_default_env() function. So fix the spi flash code and kill off the default_environment_size in the process. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
91 lines
2 KiB
C
91 lines
2 KiB
C
/*
|
|
* (C) Copyright 2009 mGine co.
|
|
* unsik Kim <donari75@gmail.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 <environment.h>
|
|
#include <linux/stddef.h>
|
|
#include <mg_disk.h>
|
|
|
|
/* references to names in env_common.c */
|
|
extern uchar default_environment[];
|
|
|
|
char * env_name_spec = "MG_DISK";
|
|
|
|
env_t *env_ptr = 0;
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
uchar env_get_char_spec(int index)
|
|
{
|
|
return (*((uchar *) (gd->env_addr + index)));
|
|
}
|
|
|
|
void env_relocate_spec(void)
|
|
{
|
|
unsigned int err;
|
|
|
|
err = mg_disk_init();
|
|
if (err) {
|
|
puts ("*** Warning - mg_disk_init error");
|
|
goto OUT;
|
|
}
|
|
err = mg_disk_read(CONFIG_ENV_ADDR, (u_char *)env_ptr, CONFIG_ENV_SIZE);
|
|
if (err) {
|
|
puts ("*** Warning - mg_disk_read error");
|
|
goto OUT;
|
|
}
|
|
|
|
if (crc32(0, env_ptr->data, ENV_SIZE) != env_ptr->crc) {
|
|
puts ("*** Warning - CRC error");
|
|
goto OUT;
|
|
}
|
|
|
|
return;
|
|
|
|
OUT:
|
|
printf (", using default environment\n\n");
|
|
set_default_env();
|
|
}
|
|
|
|
int saveenv(void)
|
|
{
|
|
unsigned int err;
|
|
|
|
env_ptr->crc = crc32(0, env_ptr->data, ENV_SIZE);
|
|
err = mg_disk_write(CONFIG_ENV_ADDR, (u_char *)env_ptr,
|
|
CONFIG_ENV_SIZE);
|
|
if (err)
|
|
puts ("*** Warning - mg_disk_write error\n\n");
|
|
|
|
return err;
|
|
}
|
|
|
|
int env_init(void)
|
|
{
|
|
/* use default */
|
|
gd->env_addr = (ulong) & default_environment[0];
|
|
gd->env_valid = 1;
|
|
|
|
return 0;
|
|
}
|