projects / people / ms / u-boot.git / blame
| 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> | |
| 25 | #include <stdlib.h> | |
| 26 | #include <unistd.h> | |
| 27 | ||
| 28 | #define __ASSEMBLY__ /* Dirty trick to get only #defines */ | |
| 29 | #include <config.h> | |
| 30 | #undef __ASSEMBLY__ | |
| 31 | ||
| 32 | #if defined(CFG_ENV_IS_IN_FLASH) | |
| 33 | # ifndef CFG_ENV_ADDR | |
| 34 | # define CFG_ENV_ADDR (CFG_FLASH_BASE + CFG_ENV_OFFSET) | |
| 35 | # endif | |
| 36 | # ifndef CFG_ENV_OFFSET | |
| 37 | # define CFG_ENV_OFFSET (CFG_ENV_ADDR - CFG_FLASH_BASE) | |
| 38 | # endif | |
| 39 | # ifndef CFG_ENV_SIZE | |
| 40 | # define CFG_ENV_SIZE CFG_ENV_SECT_SIZE | |
| 41 | # endif | |
| 42 | # if ((CFG_ENV_ADDR >= CFG_MONITOR_BASE) && \ | |
| 43 | ((CFG_ENV_ADDR+CFG_ENV_SIZE) <= (CFG_MONITOR_BASE + CFG_MONITOR_LEN))) | |
| 44 | # define ENV_IS_EMBEDDED | |
| 45 | # endif | |
| 46 | #endif /* CFG_ENV_IS_IN_FLASH */ | |
| 47 | ||
| 48 | extern unsigned long crc32 (unsigned long, const unsigned char *, unsigned int); | |
| 49 | ||
| 50 | #ifdef ENV_IS_EMBEDDED | |
| 51 | extern unsigned int env_size; | |
| 52 | extern unsigned char environment; | |
| 53 | #endif /* ENV_IS_EMBEDDED */ | |
| 54 | ||
| 55 | int main (int argc, char **argv) | |
| 56 | { | |
| 57 | #ifdef ENV_IS_EMBEDDED | |
| 58 | int crc ; | |
| 59 | unsigned char *envptr = &environment, | |
| 60 | *dataptr = envptr + sizeof(unsigned int) + 1; | |
| 61 | unsigned int datasize = env_size - (dataptr - envptr) ; | |
| 62 | ||
| 63 | ||
| 64 | crc = crc32(0, dataptr, datasize) ; | |
| 65 | ||
| 66 | /* Check if verbose mode is activated passing a parameter to the program */ | |
| 67 | if (argc > 1) { | |
| 68 | printf("CRC32 from offset %08X to %08X of environment = %08X\n", | |
| 69 | (unsigned int)(dataptr - envptr), | |
| 70 | (unsigned int)(dataptr - envptr) + datasize, | |
| 71 | crc); | |
| 72 | } else { | |
| 73 | printf("0x%08X\n", crc); | |
| 74 | } | |
| 75 | #else | |
| 76 | printf("0\n"); | |
| 77 | #endif | |
| 78 | return EXIT_SUCCESS; | |
| 79 | } | |
| 80 |