diff options
Diffstat (limited to 'drivers/mtd/cfi_flash.c')
| -rw-r--r-- | drivers/mtd/cfi_flash.c | 51 |
1 files changed, 27 insertions, 24 deletions
diff --git a/drivers/mtd/cfi_flash.c b/drivers/mtd/cfi_flash.c index 2157c02..1191ef0 100644 --- a/drivers/mtd/cfi_flash.c +++ b/drivers/mtd/cfi_flash.c @@ -1096,8 +1096,30 @@ int flash_erase (flash_info_t * info, int s_first, int s_last) return rcode; } -/*----------------------------------------------------------------------- - */ +#ifdef CONFIG_SYS_FLASH_EMPTY_INFO +static int sector_erased(flash_info_t *info, int i) +{ + int k; + int size; + volatile unsigned long *flash; + + /* + * Check if whole sector is erased + */ + size = flash_sector_size(info, i); + flash = (volatile unsigned long *) info->start[i]; + /* divide by 4 for longword access */ + size = size >> 2; + + for (k = 0; k < size; k++) { + if (*flash++ != 0xffffffff) + return 0; /* not erased */ + } + + return 1; /* erased */ +} +#endif /* CONFIG_SYS_FLASH_EMPTY_INFO */ + void flash_print_info (flash_info_t * info) { int i; @@ -1162,33 +1184,14 @@ void flash_print_info (flash_info_t * info) puts ("\n Sector Start Addresses:"); for (i = 0; i < info->sector_count; ++i) { if (ctrlc()) - return; + break; if ((i % 5) == 0) - printf ("\n"); + putc('\n'); #ifdef CONFIG_SYS_FLASH_EMPTY_INFO - int k; - int size; - int erased; - volatile unsigned long *flash; - - /* - * Check if whole sector is erased - */ - size = flash_sector_size(info, i); - erased = 1; - flash = (volatile unsigned long *) info->start[i]; - size = size >> 2; /* divide by 4 for longword access */ - for (k = 0; k < size; k++) { - if (*flash++ != 0xffffffff) { - erased = 0; - break; - } - } - /* print empty and read-only info */ printf (" %08lX %c %s ", info->start[i], - erased ? 'E' : ' ', + sector_erased(info, i) ? 'E' : ' ', info->protect[i] ? "RO" : " "); #else /* ! CONFIG_SYS_FLASH_EMPTY_INFO */ printf (" %08lX %s ", |