diff options
Diffstat (limited to 'tools/envcrc.c')
| -rw-r--r-- | tools/envcrc.c | 29 |
1 files changed, 23 insertions, 6 deletions
diff --git a/tools/envcrc.c b/tools/envcrc.c index c59f7d5..19fe17c 100644 --- a/tools/envcrc.c +++ b/tools/envcrc.c @@ -36,15 +36,33 @@ # 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 ((CFG_ENV_ADDR >= CFG_MONITOR_BASE) && \ - ((CFG_ENV_ADDR+CFG_ENV_SIZE) <= (CFG_MONITOR_BASE + CFG_MONITOR_LEN))) -# define ENV_IS_EMBEDDED +# 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(unsigned long) + 1) +#else +# define ENV_HEADER_SIZE (sizeof(unsigned long)) +#endif + +#define ENV_SIZE (CFG_ENV_SIZE - ENV_HEADER_SIZE) + + extern unsigned long crc32 (unsigned long, const unsigned char *, unsigned int); #ifdef ENV_IS_EMBEDDED @@ -57,9 +75,8 @@ int main (int argc, char **argv) #ifdef ENV_IS_EMBEDDED int crc ; unsigned char *envptr = &environment, - *dataptr = envptr + sizeof(unsigned int) + 1; - unsigned int datasize = env_size - (dataptr - envptr) ; - + *dataptr = envptr + ENV_HEADER_SIZE; + unsigned int datasize = ENV_SIZE; crc = crc32(0, dataptr, datasize) ; |