mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-10 23:24:38 +00:00
81 lines
2.3 KiB
C
81 lines
2.3 KiB
C
|
/*
|
||
|
|
* (C) Copyright 2001
|
||
|
|
* Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it
|
||
|
|
*
|
||
|
|
* 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 <stdio.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <unistd.h>
|
||
|
|
|
||
|
|
#define __ASSEMBLY__ /* Dirty trick to get only #defines */
|
||
|
|
#include <config.h>
|
||
|
|
#undef __ASSEMBLY__
|
||
|
|
|
||
|
|
#if defined(CFG_ENV_IS_IN_FLASH)
|
||
|
|
# ifndef CFG_ENV_ADDR
|
||
|
|
# define CFG_ENV_ADDR (CFG_FLASH_BASE + CFG_ENV_OFFSET)
|
||
|
|
# endif
|
||
|
|
# ifndef CFG_ENV_OFFSET
|
||
|
|
# define CFG_ENV_OFFSET (CFG_ENV_ADDR - CFG_FLASH_BASE)
|
||
|
|
# endif
|
||
|
|
# ifndef CFG_ENV_SIZE
|
||
|
|
# define CFG_ENV_SIZE CFG_ENV_SECT_SIZE
|
||
|
|
# endif
|
||
|
|
# if ((CFG_ENV_ADDR >= CFG_MONITOR_BASE) && \
|
||
|
|
((CFG_ENV_ADDR+CFG_ENV_SIZE) <= (CFG_MONITOR_BASE + CFG_MONITOR_LEN)))
|
||
|
|
# define ENV_IS_EMBEDDED
|
||
|
|
# endif
|
||
|
|
#endif /* CFG_ENV_IS_IN_FLASH */
|
||
|
|
|
||
|
|
extern unsigned long crc32 (unsigned long, const unsigned char *, unsigned int);
|
||
|
|
|
||
|
|
#ifdef ENV_IS_EMBEDDED
|
||
|
|
extern unsigned int env_size;
|
||
|
|
extern unsigned char environment;
|
||
|
|
#endif /* ENV_IS_EMBEDDED */
|
||
|
|
|
||
|
|
int main (int argc, char **argv)
|
||
|
|
{
|
||
|
|
#ifdef ENV_IS_EMBEDDED
|
||
|
|
int crc ;
|
||
|
|
unsigned char *envptr = &environment,
|
||
|
|
*dataptr = envptr + sizeof(unsigned int) + 1;
|
||
|
|
unsigned int datasize = env_size - (dataptr - envptr) ;
|
||
|
|
|
||
|
|
|
||
|
|
crc = crc32(0, dataptr, datasize) ;
|
||
|
|
|
||
|
|
/* Check if verbose mode is activated passing a parameter to the program */
|
||
|
|
if (argc > 1) {
|
||
|
|
printf("CRC32 from offset %08X to %08X of environment = %08X\n",
|
||
|
|
(unsigned int)(dataptr - envptr),
|
||
|
|
(unsigned int)(dataptr - envptr) + datasize,
|
||
|
|
crc);
|
||
|
|
} else {
|
||
|
|
printf("0x%08X\n", crc);
|
||
|
|
}
|
||
|
|
#else
|
||
|
|
printf("0\n");
|
||
|
|
#endif
|
||
|
|
return EXIT_SUCCESS;
|
||
|
|
}
|
||
|
|
|