diff options
| -rw-r--r-- | flash_erase.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/flash_erase.c b/flash_erase.c index 1a7b52e..3ce701b 100644 --- a/flash_erase.c +++ b/flash_erase.c @@ -60,7 +60,7 @@ static void show_progress(struct mtd_dev_info *mtd, uint64_t start, int eb, static void display_help (void) { - printf("Usage: %s [options] MTD_DEVICE <start block> <block count>\n" + printf("Usage: %s [options] MTD_DEVICE <start offset> <block count>\n" "Erase blocks of the specified MTD device.\n" "Specify a count of 0 to erase to end of device.\n" "\n" @@ -94,6 +94,7 @@ int main(int argc, char *argv[]) libmtd_t mtd_desc; struct mtd_dev_info mtd; int fd, clmpos = 0, clmlen = 8; + unsigned long long start; unsigned int eb, eb_start, eb_cnt; int isNAND; int error = 0; @@ -153,7 +154,7 @@ int main(int argc, char *argv[]) switch (argc - optind) { case 3: mtd_device = argv[optind]; - eb_start = simple_strtoul(argv[optind + 1], &error); + start = simple_strtoull(argv[optind + 1], &error); eb_cnt = simple_strtoul(argv[optind + 2], &error); break; default: @@ -182,6 +183,8 @@ int main(int argc, char *argv[]) if (mtd_get_dev_info(mtd_desc, mtd_device, &mtd) < 0) return errmsg("mtd_get_dev_info failed"); + eb_start = start / mtd.eb_size; + isNAND = mtd.type == MTD_NANDFLASH ? 1 : 0; if (jffs2) { |