diff options
Diffstat (limited to 'drivers/mtd/parsers/cmdlinepart.c')
| -rw-r--r-- | drivers/mtd/parsers/cmdlinepart.c | 35 |
1 files changed, 30 insertions, 5 deletions
diff --git a/drivers/mtd/parsers/cmdlinepart.c b/drivers/mtd/parsers/cmdlinepart.c index c86f2db8c882..a79e4d866b08 100644 --- a/drivers/mtd/parsers/cmdlinepart.c +++ b/drivers/mtd/parsers/cmdlinepart.c @@ -9,7 +9,7 @@ * * mtdparts=<mtddef>[;<mtddef] * <mtddef> := <mtd-id>:<partdef>[,<partdef>] - * <partdef> := <size>[@<offset>][<name>][ro][lk] + * <partdef> := <size>[@<offset>][<name>][ro][lk][slc] * <mtd-id> := unique name used in mapping driver/device (mtd->name) * <size> := standard linux memsize OR "-" to denote all remaining space * size is automatically truncated at end of device @@ -92,7 +92,7 @@ static struct mtd_partition * newpart(char *s, int name_len; unsigned char *extra_mem; char delim; - unsigned int mask_flags; + unsigned int mask_flags, add_flags; /* fetch the partition size */ if (*s == '-') { @@ -109,6 +109,7 @@ static struct mtd_partition * newpart(char *s, /* fetch partition name and flags */ mask_flags = 0; /* this is going to be a regular partition */ + add_flags = 0; delim = 0; /* check for offset */ @@ -152,6 +153,12 @@ static struct mtd_partition * newpart(char *s, s += 2; } + /* if slc is found use emulated SLC mode on this partition*/ + if (!strncmp(s, "slc", 3)) { + add_flags |= MTD_SLC_ON_MLC_EMULATION; + s += 3; + } + /* test if more partitions are following */ if (*s == ',') { if (size == SIZE_REMAINING) { @@ -184,6 +191,7 @@ static struct mtd_partition * newpart(char *s, parts[this_part].size = size; parts[this_part].offset = offset; parts[this_part].mask_flags = mask_flags; + parts[this_part].add_flags = add_flags; if (name) strlcpy(extra_mem, name, name_len + 1); else @@ -218,12 +226,29 @@ static int mtdpart_setup_real(char *s) struct cmdline_mtd_partition *this_mtd; struct mtd_partition *parts; int mtd_id_len, num_parts; - char *p, *mtd_id; + char *p, *mtd_id, *semicol; + + /* + * Replace the first ';' by a NULL char so strrchr can work + * properly. + */ + semicol = strchr(s, ';'); + if (semicol) + *semicol = '\0'; mtd_id = s; - /* fetch <mtd-id> */ - p = strchr(s, ':'); + /* + * fetch <mtd-id>. We use strrchr to ignore all ':' that could + * be present in the MTD name, only the last one is interpreted + * as an <mtd-id>/<part-definition> separator. + */ + p = strrchr(s, ':'); + + /* Restore the ';' now. */ + if (semicol) + *semicol = ';'; + if (!p) { pr_err("no mtd-id\n"); return -EINVAL; |