Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 732b63bd authored by Robert Jarzmik's avatar Robert Jarzmik Committed by David Woodhouse
Browse files

mtd: docg3: add OOB layout to mtdinfo 



Add OOB layout description for docg3, so that userspace can
use this information to setup the data for write_oob().

Signed-off-by: default avatarRobert Jarzmik <robert.jarzmik@free.fr>
Reviewed-by: default avatarIvan Djelic <ivan.djelic@parrot.com>
Reviewed-by: default avatarMike Dunn <mikedunn@newsguy.com>
Signed-off-by: default avatarDavid Woodhouse <David.Woodhouse@intel.com>
parent ae9d4934

drivers/mtd/devices/docg3.c

+15 −0
Original line number Diff line number Diff line
@@ -63,6 +63,20 @@ 
 *

 */



/**

 * struct docg3_oobinfo - DiskOnChip G3 OOB layout

 * @eccbytes: 8 bytes are used (1 for Hamming ECC, 7 for BCH ECC)

 * @eccpos: ecc positions (byte 7 is Hamming ECC, byte 8-14 are BCH ECC)

 * @oobfree: free pageinfo bytes (byte 0 until byte 6, byte 15

 * @oobavail: 8 available bytes remaining after ECC toll

 */

static struct nand_ecclayout docg3_oobinfo = {

	.eccbytes = 8,

	.eccpos = {7, 8, 9, 10, 11, 12, 13, 14},

	.oobfree = {{0, 7}, {15, 1} },

	.oobavail = 8,

};



static inline u8 doc_readb(struct docg3 *docg3, u16 reg)

{

	u8 val = readb(docg3->base + reg);
@@ -973,6 +987,7 @@ static void __init doc_set_driver_info(int chip_id, struct mtd_info *mtd) 
	mtd->write_oob = NULL;

	mtd->sync = NULL;

	mtd->block_isbad = doc_block_isbad;

	mtd->ecclayout = &docg3_oobinfo;

}



/**