3 * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it
5 * See file CREDITS for list of people who contributed to this
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.
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.
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,
29 #define __ASSEMBLY__ /* Dirty trick to get only #defines */
31 #define __ASM_STUB_PROCESSOR_H__ /* don't include asm/processor. */
35 #if defined(CFG_ENV_IS_IN_FLASH)
37 # define CFG_ENV_ADDR (CFG_FLASH_BASE + CFG_ENV_OFFSET)
39 # ifndef CFG_ENV_OFFSET
40 # define CFG_ENV_OFFSET (CFG_ENV_ADDR - CFG_FLASH_BASE)
42 # if !defined(CFG_ENV_ADDR_REDUND) && defined(CFG_ENV_OFFSET_REDUND)
43 # define CFG_ENV_ADDR_REDUND (CFG_FLASH_BASE + CFG_ENV_OFFSET_REDUND)
46 # define CFG_ENV_SIZE CFG_ENV_SECT_SIZE
48 # if defined(CFG_ENV_ADDR_REDUND) && !defined(CFG_ENV_SIZE_REDUND)
49 # define CFG_ENV_SIZE_REDUND CFG_ENV_SIZE
51 # if (CFG_ENV_ADDR >= CFG_MONITOR_BASE) && \
52 ((CFG_ENV_ADDR + CFG_ENV_SIZE) <= (CFG_MONITOR_BASE + CFG_MONITOR_LEN))
53 # define ENV_IS_EMBEDDED 1
55 # if defined(CFG_ENV_ADDR_REDUND) || defined(CFG_ENV_OFFSET_REDUND)
56 # define CFG_REDUNDAND_ENVIRONMENT 1
58 #endif /* CFG_ENV_IS_IN_FLASH */
60 #ifdef CFG_REDUNDAND_ENVIRONMENT
61 # define ENV_HEADER_SIZE (sizeof(unsigned long) + 1)
63 # define ENV_HEADER_SIZE (sizeof(unsigned long))
66 #define ENV_SIZE (CFG_ENV_SIZE - ENV_HEADER_SIZE)
69 extern unsigned long crc32 (unsigned long, const unsigned char *, unsigned int);
71 #ifdef ENV_IS_EMBEDDED
72 extern unsigned int env_size;
73 extern unsigned char environment;
74 #endif /* ENV_IS_EMBEDDED */
76 int main (int argc, char **argv)
78 #ifdef ENV_IS_EMBEDDED
80 unsigned char *envptr = &environment,
81 *dataptr = envptr + ENV_HEADER_SIZE;
82 unsigned int datasize = ENV_SIZE;
84 crc = crc32 (0, dataptr, datasize);
86 /* Check if verbose mode is activated passing a parameter to the program */
88 printf ("CRC32 from offset %08X to %08X of environment = %08X\n",
89 (unsigned int) (dataptr - envptr),
90 (unsigned int) (dataptr - envptr) + datasize,
93 printf ("0x%08X\n", crc);