[people/ms/u-boot.git] / tools / envcrc.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 <stdint.h>
#include <stdlib.h>
#include <unistd.h>

#ifndef __ASSEMBLY__
#define	__ASSEMBLY__			/* Dirty trick to get only #defines	*/
#endif
#define	__ASM_STUB_PROCESSOR_H__	/* don't include asm/processor.		*/
#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
# if !defined(CFG_ENV_ADDR_REDUND) && defined(CFG_ENV_OFFSET_REDUND)
#  define CFG_ENV_ADDR_REDUND	(CFG_FLASH_BASE + CFG_ENV_OFFSET_REDUND)
# endif
# ifndef  CFG_ENV_SIZE
#  define CFG_ENV_SIZE	CFG_ENV_SECT_SIZE
# endif
# if defined(CFG_ENV_ADDR_REDUND) && !defined(CFG_ENV_SIZE_REDUND)
#  define CFG_ENV_SIZE_REDUND	CFG_ENV_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	1
# endif
# if defined(CFG_ENV_ADDR_REDUND) || defined(CFG_ENV_OFFSET_REDUND)
#  define CFG_REDUNDAND_ENVIRONMENT	1
# endif
#endif	/* CFG_ENV_IS_IN_FLASH */

#ifdef CFG_REDUNDAND_ENVIRONMENT
# define ENV_HEADER_SIZE	(sizeof(uint32_t) + 1)
#else
# define ENV_HEADER_SIZE	(sizeof(uint32_t))
#endif

#define ENV_SIZE (CFG_ENV_SIZE - ENV_HEADER_SIZE)


extern uint32_t crc32 (uint32_t, 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
	uint32_t crc;
	unsigned char *envptr = &environment,
		*dataptr = envptr + ENV_HEADER_SIZE;
	unsigned int datasize = ENV_SIZE;

	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;
}
Commit	Line	Data
fe57bb19 WD	1	/*
	2	* (C) Copyright 2001
	3	* Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it
	4	*
	5	* See file CREDITS for list of people who contributed to this
	6	* project.
	7	*
	8	* This program is free software; you can redistribute it and/or
	9	* modify it under the terms of the GNU General Public License as
	10	* published by the Free Software Foundation; either version 2 of
	11	* the License, or (at your option) any later version.
	12	*
	13	* This program is distributed in the hope that it will be useful,
	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	* GNU General Public License for more details.
	17	*
	18	* You should have received a copy of the GNU General Public License
	19	* along with this program; if not, write to the Free Software
	20	* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
	21	* MA 02111-1307 USA
	22	*/
	23
	24	#include <stdio.h>
89cdab78	25	#include <stdint.h>
fe57bb19 WD	26	#include <stdlib.h>
	27	#include <unistd.h>
	28
dc17fb6d WD	29	#ifndef __ASSEMBLY__
	30	#define __ASSEMBLY__ /* Dirty trick to get only #defines */
	31	#endif
	32	#define __ASM_STUB_PROCESSOR_H__ /* don't include asm/processor. */
fe57bb19 WD	33	#include <config.h>
	34	#undef __ASSEMBLY__
	35
	36	#if defined(CFG_ENV_IS_IN_FLASH)
	37	# ifndef CFG_ENV_ADDR
	38	# define CFG_ENV_ADDR (CFG_FLASH_BASE + CFG_ENV_OFFSET)
	39	# endif
	40	# ifndef CFG_ENV_OFFSET
	41	# define CFG_ENV_OFFSET (CFG_ENV_ADDR - CFG_FLASH_BASE)
	42	# endif
43d9616c WD	43	# if !defined(CFG_ENV_ADDR_REDUND) && defined(CFG_ENV_OFFSET_REDUND)
	44	# define CFG_ENV_ADDR_REDUND (CFG_FLASH_BASE + CFG_ENV_OFFSET_REDUND)
	45	# endif
fe57bb19 WD	46	# ifndef CFG_ENV_SIZE
	47	# define CFG_ENV_SIZE CFG_ENV_SECT_SIZE
	48	# endif
43d9616c WD	49	# if defined(CFG_ENV_ADDR_REDUND) && !defined(CFG_ENV_SIZE_REDUND)
	50	# define CFG_ENV_SIZE_REDUND CFG_ENV_SIZE
	51	# endif
	52	# if (CFG_ENV_ADDR >= CFG_MONITOR_BASE) && \
	53	((CFG_ENV_ADDR + CFG_ENV_SIZE) <= (CFG_MONITOR_BASE + CFG_MONITOR_LEN))
	54	# define ENV_IS_EMBEDDED 1
	55	# endif
	56	# if defined(CFG_ENV_ADDR_REDUND) \|\| defined(CFG_ENV_OFFSET_REDUND)
	57	# define CFG_REDUNDAND_ENVIRONMENT 1
fe57bb19 WD	58	# endif
	59	#endif /* CFG_ENV_IS_IN_FLASH */
	60
43d9616c	61	#ifdef CFG_REDUNDAND_ENVIRONMENT
89cdab78	62	# define ENV_HEADER_SIZE (sizeof(uint32_t) + 1)
43d9616c	63	#else
89cdab78	64	# define ENV_HEADER_SIZE (sizeof(uint32_t))
43d9616c WD	65	#endif
	66
	67	#define ENV_SIZE (CFG_ENV_SIZE - ENV_HEADER_SIZE)
	68
	69
89cdab78	70	extern uint32_t crc32 (uint32_t, const unsigned char *, unsigned int);
fe57bb19 WD	71
	72	#ifdef ENV_IS_EMBEDDED
	73	extern unsigned int env_size;
	74	extern unsigned char environment;
	75	#endif /* ENV_IS_EMBEDDED */
	76
	77	int main (int argc, char **argv)
	78	{
	79	#ifdef ENV_IS_EMBEDDED
89cdab78	80	uint32_t crc;
dc17fb6d WD	81	unsigned char *envptr = &environment,
	82	*dataptr = envptr + ENV_HEADER_SIZE;
	83	unsigned int datasize = ENV_SIZE;
fe57bb19	84
dc17fb6d	85	crc = crc32 (0, dataptr, datasize);
fe57bb19	86
dc17fb6d WD	87	/* Check if verbose mode is activated passing a parameter to the program */
	88	if (argc > 1) {
	89	printf ("CRC32 from offset %08X to %08X of environment = %08X\n",
	90	(unsigned int) (dataptr - envptr),
	91	(unsigned int) (dataptr - envptr) + datasize,
	92	crc);
	93	} else {
	94	printf ("0x%08X\n", crc);
	95	}
fe57bb19	96	#else
dc17fb6d	97	printf ("0\n");
fe57bb19	98	#endif
dc17fb6d	99	return EXIT_SUCCESS;
fe57bb19	100	}