Commit 568d841b authored by Boris Brezillon's avatar Boris Brezillon Committed by Miquel Raynal
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mtd: cmdlinepart: Add an slc option to use SLC mode on a part 



Add a new option to set the MTD_SLC_ON_MLC_EMULATION flag.

Signed-off-by: default avatarBoris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: default avatarMiquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200503155341.16712-8-miquel.raynal@bootlin.com
parent 1998053c

drivers/mtd/parsers/cmdlinepart.c

+10 −2
Original line number Original line Diff line number Diff line
@@ -9,7 +9,7 @@ 
 *

 *

 * mtdparts=<mtddef>[;<mtddef]

 * mtdparts=<mtddef>[;<mtddef]

 * <mtddef>  := <mtd-id>:<partdef>[,<partdef>]

 * <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)

 * <mtd-id>  := unique name used in mapping driver/device (mtd->name)

 * <size>    := standard linux memsize OR "-" to denote all remaining space

 * <size>    := standard linux memsize OR "-" to denote all remaining space

 *              size is automatically truncated at end of device

 *              size is automatically truncated at end of device
@@ -92,7 +92,7 @@ static struct mtd_partition * newpart(char *s, 
	int name_len;

	int name_len;

	unsigned char *extra_mem;

	unsigned char *extra_mem;

	char delim;

	char delim;

	unsigned int mask_flags;

	unsigned int mask_flags, add_flags;





	/* fetch the partition size */

	/* fetch the partition size */

	if (*s == '-') {

	if (*s == '-') {
@@ -109,6 +109,7 @@ static struct mtd_partition * newpart(char *s, 




	/* fetch partition name and flags */

	/* fetch partition name and flags */

	mask_flags = 0; /* this is going to be a regular partition */

	mask_flags = 0; /* this is going to be a regular partition */

	add_flags = 0;

	delim = 0;

	delim = 0;





	/* check for offset */

	/* check for offset */
@@ -152,6 +153,12 @@ static struct mtd_partition * newpart(char *s, 
		s += 2;

		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 */

	/* test if more partitions are following */

	if (*s == ',') {

	if (*s == ',') {

		if (size == SIZE_REMAINING) {

		if (size == SIZE_REMAINING) {
@@ -184,6 +191,7 @@ static struct mtd_partition * newpart(char *s, 
	parts[this_part].size = size;

	parts[this_part].size = size;

	parts[this_part].offset = offset;

	parts[this_part].offset = offset;

	parts[this_part].mask_flags = mask_flags;

	parts[this_part].mask_flags = mask_flags;

	parts[this_part].add_flags = add_flags;

	if (name)

	if (name)

		strlcpy(extra_mem, name, name_len + 1);

		strlcpy(extra_mem, name, name_len + 1);

	else

	else