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mtd: cmdlinepart: Add an slc option to use SLC mode on a part

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Add a new option to set the MTD_SLC_ON_MLC_EMULATION flag.

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200503155341.16712-8-miquel.raynal@bootlin.com
This commit is contained in:
Boris Brezillon 2020-05-03 17:53:40 +02:00 committed by Miquel Raynal
parent 1998053c8e
commit 568d841b68
1 changed files with 10 additions and 2 deletions
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12
drivers/mtd/parsers/cmdlinepart.c
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@ -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