blob: feebbabea0be822abe514340404a1fca9da9d468 [file] [log] [blame]
wdenkfe57bb12002-09-18 13:23:15 +00001/*
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
Mike Frysingerf67066b2009-10-18 20:43:14 -040024#include <errno.h>
wdenkfe57bb12002-09-18 13:23:15 +000025#include <stdio.h>
Mike Frysinger89cdab72008-03-31 11:02:01 -040026#include <stdint.h>
wdenkfe57bb12002-09-18 13:23:15 +000027#include <stdlib.h>
Mike Frysinger837db3d2009-05-06 08:41:45 -040028#include <string.h>
wdenkfe57bb12002-09-18 13:23:15 +000029#include <unistd.h>
30
Wolfgang Denkdc17fb62005-08-03 22:32:02 +020031#ifndef __ASSEMBLY__
32#define __ASSEMBLY__ /* Dirty trick to get only #defines */
33#endif
34#define __ASM_STUB_PROCESSOR_H__ /* don't include asm/processor. */
wdenkfe57bb12002-09-18 13:23:15 +000035#include <config.h>
36#undef __ASSEMBLY__
37
Jean-Christophe PLAGNIOL-VILLARD5a1aceb2008-09-10 22:48:04 +020038#if defined(CONFIG_ENV_IS_IN_FLASH)
Jean-Christophe PLAGNIOL-VILLARD0e8d1582008-09-10 22:48:06 +020039# ifndef CONFIG_ENV_ADDR
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020040# define CONFIG_ENV_ADDR (CONFIG_SYS_FLASH_BASE + CONFIG_ENV_OFFSET)
wdenkfe57bb12002-09-18 13:23:15 +000041# endif
Jean-Christophe PLAGNIOL-VILLARD0e8d1582008-09-10 22:48:06 +020042# ifndef CONFIG_ENV_OFFSET
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020043# define CONFIG_ENV_OFFSET (CONFIG_ENV_ADDR - CONFIG_SYS_FLASH_BASE)
wdenkfe57bb12002-09-18 13:23:15 +000044# endif
Jean-Christophe PLAGNIOL-VILLARD0e8d1582008-09-10 22:48:06 +020045# if !defined(CONFIG_ENV_ADDR_REDUND) && defined(CONFIG_ENV_OFFSET_REDUND)
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020046# define CONFIG_ENV_ADDR_REDUND (CONFIG_SYS_FLASH_BASE + CONFIG_ENV_OFFSET_REDUND)
wdenk43d96162003-03-06 00:02:04 +000047# endif
Jean-Christophe PLAGNIOL-VILLARD0e8d1582008-09-10 22:48:06 +020048# ifndef CONFIG_ENV_SIZE
49# define CONFIG_ENV_SIZE CONFIG_ENV_SECT_SIZE
wdenkfe57bb12002-09-18 13:23:15 +000050# endif
Jean-Christophe PLAGNIOL-VILLARD0e8d1582008-09-10 22:48:06 +020051# if defined(CONFIG_ENV_ADDR_REDUND) && !defined(CONFIG_ENV_SIZE_REDUND)
52# define CONFIG_ENV_SIZE_REDUND CONFIG_ENV_SIZE
wdenk43d96162003-03-06 00:02:04 +000053# endif
Wolfgang Denka747a7f2009-10-27 00:03:32 +010054# if (CONFIG_ENV_ADDR >= CONFIG_SYS_MONITOR_BASE) && \
55 ((CONFIG_ENV_ADDR + CONFIG_ENV_SIZE) <= (CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN))
56# define ENV_IS_EMBEDDED 1
57# endif
Jean-Christophe PLAGNIOL-VILLARD0e8d1582008-09-10 22:48:06 +020058# if defined(CONFIG_ENV_ADDR_REDUND) || defined(CONFIG_ENV_OFFSET_REDUND)
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020059# define CONFIG_SYS_REDUNDAND_ENVIRONMENT 1
wdenkfe57bb12002-09-18 13:23:15 +000060# endif
Jean-Christophe PLAGNIOL-VILLARD5a1aceb2008-09-10 22:48:04 +020061#endif /* CONFIG_ENV_IS_IN_FLASH */
wdenkfe57bb12002-09-18 13:23:15 +000062
Mike Frysingerc3eb3fe2011-07-08 10:44:25 +000063#if defined(ENV_IS_EMBEDDED) && !defined(CONFIG_BUILD_ENVCRC)
64# define CONFIG_BUILD_ENVCRC 1
65#endif
66
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020067#ifdef CONFIG_SYS_REDUNDAND_ENVIRONMENT
Mike Frysinger89cdab72008-03-31 11:02:01 -040068# define ENV_HEADER_SIZE (sizeof(uint32_t) + 1)
wdenk43d96162003-03-06 00:02:04 +000069#else
Mike Frysinger89cdab72008-03-31 11:02:01 -040070# define ENV_HEADER_SIZE (sizeof(uint32_t))
wdenk43d96162003-03-06 00:02:04 +000071#endif
72
Jean-Christophe PLAGNIOL-VILLARD0e8d1582008-09-10 22:48:06 +020073#define ENV_SIZE (CONFIG_ENV_SIZE - ENV_HEADER_SIZE)
wdenk43d96162003-03-06 00:02:04 +000074
75
Mike Frysinger89cdab72008-03-31 11:02:01 -040076extern uint32_t crc32 (uint32_t, const unsigned char *, unsigned int);
wdenkfe57bb12002-09-18 13:23:15 +000077
Mike Frysingerc3eb3fe2011-07-08 10:44:25 +000078#ifdef CONFIG_BUILD_ENVCRC
wdenkfe57bb12002-09-18 13:23:15 +000079extern unsigned int env_size;
80extern unsigned char environment;
Mike Frysingerc3eb3fe2011-07-08 10:44:25 +000081#endif /* CONFIG_BUILD_ENVCRC */
wdenkfe57bb12002-09-18 13:23:15 +000082
83int main (int argc, char **argv)
84{
Mike Frysingerc3eb3fe2011-07-08 10:44:25 +000085#ifdef CONFIG_BUILD_ENVCRC
Mike Frysinger837db3d2009-05-06 08:41:45 -040086 unsigned char pad = 0x00;
Mike Frysinger89cdab72008-03-31 11:02:01 -040087 uint32_t crc;
Wolfgang Denkdc17fb62005-08-03 22:32:02 +020088 unsigned char *envptr = &environment,
89 *dataptr = envptr + ENV_HEADER_SIZE;
90 unsigned int datasize = ENV_SIZE;
Mike Frysinger837db3d2009-05-06 08:41:45 -040091 unsigned int eoe;
92
93 if (argv[1] && !strncmp(argv[1], "--binary", 8)) {
94 int ipad = 0xff;
95 if (argv[1][8] == '=')
96 sscanf(argv[1] + 9, "%i", &ipad);
97 pad = ipad;
98 }
99
100 if (pad) {
101 /* find the end of env */
102 for (eoe = 0; eoe < datasize - 1; ++eoe)
103 if (!dataptr[eoe] && !dataptr[eoe+1]) {
104 eoe += 2;
105 break;
106 }
107 if (eoe < datasize - 1)
108 memset(dataptr + eoe, pad, datasize - eoe);
109 }
wdenkfe57bb12002-09-18 13:23:15 +0000110
Wolfgang Denkdc17fb62005-08-03 22:32:02 +0200111 crc = crc32 (0, dataptr, datasize);
wdenkfe57bb12002-09-18 13:23:15 +0000112
Wolfgang Denkdc17fb62005-08-03 22:32:02 +0200113 /* Check if verbose mode is activated passing a parameter to the program */
114 if (argc > 1) {
Mike Frysinger837db3d2009-05-06 08:41:45 -0400115 if (!strncmp(argv[1], "--binary", 8)) {
116 int le = (argc > 2 ? !strcmp(argv[2], "le") : 1);
117 size_t i, start, end, step;
118 if (le) {
119 start = 0;
120 end = ENV_HEADER_SIZE;
121 step = 1;
122 } else {
123 start = ENV_HEADER_SIZE - 1;
124 end = -1;
125 step = -1;
126 }
127 for (i = start; i != end; i += step)
128 printf("%c", (crc & (0xFF << (i * 8))) >> (i * 8));
Mike Frysingerf67066b2009-10-18 20:43:14 -0400129 if (fwrite(dataptr, 1, datasize, stdout) != datasize)
130 fprintf(stderr, "fwrite() failed: %s\n", strerror(errno));
Mike Frysinger837db3d2009-05-06 08:41:45 -0400131 } else {
132 printf("CRC32 from offset %08X to %08X of environment = %08X\n",
133 (unsigned int) (dataptr - envptr),
134 (unsigned int) (dataptr - envptr) + datasize,
135 crc);
136 }
Wolfgang Denkdc17fb62005-08-03 22:32:02 +0200137 } else {
138 printf ("0x%08X\n", crc);
139 }
Wolfgang Denka747a7f2009-10-27 00:03:32 +0100140#else
141 printf ("0\n");
142#endif
Wolfgang Denkdc17fb62005-08-03 22:32:02 +0200143 return EXIT_SUCCESS;
wdenkfe57bb12002-09-18 13:23:15 +0000144}