diff options
Diffstat (limited to 'ubi-utils/ubiattach.c')
| -rw-r--r-- | ubi-utils/ubiattach.c | 40 |
1 files changed, 32 insertions, 8 deletions
diff --git a/ubi-utils/ubiattach.c b/ubi-utils/ubiattach.c index 27e7c09..8dd0bf6 100644 --- a/ubi-utils/ubiattach.c +++ b/ubi-utils/ubiattach.c @@ -42,6 +42,7 @@ struct args { int vidoffs; const char *node; const char *dev; + int max_beb_per1024; }; static struct args args = { @@ -50,6 +51,7 @@ static struct args args = { .vidoffs = 0, .node = NULL, .dev = NULL, + .max_beb_per1024 = 0, }; static const char doc[] = PROGRAM_NAME " version " VERSION @@ -63,6 +65,9 @@ static const char optionsstr[] = " if the character device node does not exist)\n" "-O, --vid-hdr-offset VID header offset (do not specify this unless you really\n" " know what you are doing, the default should be optimal)\n" +"-b, --max-beb-per1024 maximum expected bad block number per 1024 eraseblock.\n" +" The default value is correct for most NAND devices.\n" +" Allowed range is 0-768, 0 means the default kernel value.\n" "-h, --help print help message\n" "-V, --version print program version"; @@ -71,19 +76,26 @@ static const char usage[] = "\t[-m <MTD device number>] [-d <UBI device number>] [-p <path to device>]\n" "\t[--mtdn=<MTD device number>] [--devn=<UBI device number>]\n" "\t[--dev-path=<path to device>]\n" +"\t[--max-beb-per1024=<maximum bad block number per 1024 blocks>]\n" "UBI control device defaults to " DEFAULT_CTRL_DEV " if not supplied.\n" "Example 1: " PROGRAM_NAME " -p /dev/mtd0 - attach /dev/mtd0 to UBI\n" "Example 2: " PROGRAM_NAME " -m 0 - attach MTD device 0 (mtd0) to UBI\n" "Example 3: " PROGRAM_NAME " -m 0 -d 3 - attach MTD device 0 (mtd0) to UBI\n" -" and create UBI device number 3 (ubi3)"; +" and create UBI device number 3 (ubi3)\n" +"Example 4: " PROGRAM_NAME " -m 1 -b 25 - attach /dev/mtd1 to UBI and reserve\n" +" 25*C/1024 eraseblocks for bad block handling, where C is the flash\n" +" is total flash chip eraseblocks count, that is flash chip size in\n" +" eraseblocks (including bad eraseblocks). E.g., if the flash chip\n" +" has 4096 PEBs, 100 will be reserved."; static const struct option long_options[] = { - { .name = "devn", .has_arg = 1, .flag = NULL, .val = 'd' }, - { .name = "dev-path", .has_arg = 1, .flag = NULL, .val = 'p' }, - { .name = "mtdn", .has_arg = 1, .flag = NULL, .val = 'm' }, - { .name = "vid-hdr-offset", .has_arg = 1, .flag = NULL, .val = 'O' }, - { .name = "help", .has_arg = 0, .flag = NULL, .val = 'h' }, - { .name = "version", .has_arg = 0, .flag = NULL, .val = 'V' }, + { .name = "devn", .has_arg = 1, .flag = NULL, .val = 'd' }, + { .name = "dev-path", .has_arg = 1, .flag = NULL, .val = 'p' }, + { .name = "mtdn", .has_arg = 1, .flag = NULL, .val = 'm' }, + { .name = "vid-hdr-offset", .has_arg = 1, .flag = NULL, .val = 'O' }, + { .name = "max-beb-per1024", .has_arg = 1, .flag = NULL, .val = 'b' }, + { .name = "help", .has_arg = 0, .flag = NULL, .val = 'h' }, + { .name = "version", .has_arg = 0, .flag = NULL, .val = 'V' }, { NULL, 0, NULL, 0}, }; @@ -92,7 +104,7 @@ static int parse_opt(int argc, char * const argv[]) while (1) { int key, error = 0; - key = getopt_long(argc, argv, "p:m:d:O:hV", long_options, NULL); + key = getopt_long(argc, argv, "p:m:d:O:b:hV", long_options, NULL); if (key == -1) break; @@ -121,6 +133,17 @@ static int parse_opt(int argc, char * const argv[]) break; + case 'b': + args.max_beb_per1024 = simple_strtoul(optarg, &error); + if (error || args.max_beb_per1024 < 0 || + args.max_beb_per1024 > 768) + return errmsg("bad maximum of expected bad blocks (0-768): \"%s\"", optarg); + + if (args.max_beb_per1024 == 0) + warnmsg("the default kernel value will be used for maximum expected bad blocks"); + + break; + case 'h': printf("%s\n\n", doc); printf("%s\n\n", usage); @@ -190,6 +213,7 @@ int main(int argc, char * const argv[]) req.mtd_num = args.mtdn; req.vid_hdr_offset = args.vidoffs; req.mtd_dev_node = args.dev; + req.max_beb_per1024 = args.max_beb_per1024; err = ubi_attach(libubi, args.node, &req); if (err) { |