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rename CFG_ macros to CONFIG_SYS
[people/ms/u-boot.git] / tools / envcrc.c
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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>
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26#include <stdlib.h>
27#include <unistd.h>
28
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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. */
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33#include <config.h>
34#undef __ASSEMBLY__
35
5a1aceb0 36#if defined(CONFIG_ENV_IS_IN_FLASH)
0e8d1586 37# ifndef CONFIG_ENV_ADDR
6d0f6bcf 38# define CONFIG_ENV_ADDR (CONFIG_SYS_FLASH_BASE + CONFIG_ENV_OFFSET)
fe57bb19 39# endif
0e8d1586 40# ifndef CONFIG_ENV_OFFSET
6d0f6bcf 41# define CONFIG_ENV_OFFSET (CONFIG_ENV_ADDR - CONFIG_SYS_FLASH_BASE)
fe57bb19 42# endif
0e8d1586 43# if !defined(CONFIG_ENV_ADDR_REDUND) && defined(CONFIG_ENV_OFFSET_REDUND)
6d0f6bcf 44# define CONFIG_ENV_ADDR_REDUND (CONFIG_SYS_FLASH_BASE + CONFIG_ENV_OFFSET_REDUND)
43d9616c 45# endif
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46# ifndef CONFIG_ENV_SIZE
47# define CONFIG_ENV_SIZE CONFIG_ENV_SECT_SIZE
fe57bb19 48# endif
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49# if defined(CONFIG_ENV_ADDR_REDUND) && !defined(CONFIG_ENV_SIZE_REDUND)
50# define CONFIG_ENV_SIZE_REDUND CONFIG_ENV_SIZE
43d9616c 51# endif
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JCPV
52# if (CONFIG_ENV_ADDR >= CONFIG_SYS_MONITOR_BASE) && \
53 ((CONFIG_ENV_ADDR + CONFIG_ENV_SIZE) <= (CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN))
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54# define ENV_IS_EMBEDDED 1
55# endif
0e8d1586 56# if defined(CONFIG_ENV_ADDR_REDUND) || defined(CONFIG_ENV_OFFSET_REDUND)
6d0f6bcf 57# define CONFIG_SYS_REDUNDAND_ENVIRONMENT 1
fe57bb19 58# endif
5a1aceb0 59#endif /* CONFIG_ENV_IS_IN_FLASH */
fe57bb19 60
6d0f6bcf 61#ifdef CONFIG_SYS_REDUNDAND_ENVIRONMENT
89cdab78 62# define ENV_HEADER_SIZE (sizeof(uint32_t) + 1)
43d9616c 63#else
89cdab78 64# define ENV_HEADER_SIZE (sizeof(uint32_t))
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65#endif
66
0e8d1586 67#define ENV_SIZE (CONFIG_ENV_SIZE - ENV_HEADER_SIZE)
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68
69
89cdab78 70extern uint32_t crc32 (uint32_t, const unsigned char *, unsigned int);
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71
72#ifdef ENV_IS_EMBEDDED
73extern unsigned int env_size;
74extern unsigned char environment;
75#endif /* ENV_IS_EMBEDDED */
76
77int main (int argc, char **argv)
78{
79#ifdef ENV_IS_EMBEDDED
89cdab78 80 uint32_t crc;
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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
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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}