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authorStefan Agner <stefan.agner@toradex.com>2018-12-06 14:57:09 +0100
committerTom Rini <trini@konsulko.com>2019-01-16 16:14:45 -0500
commita38c3af868ad2a7a7c04667e559570d5f81b1d51 (patch)
tree264995e66034673b57767d226fe491cda6219a1c /drivers/mtd/nand/raw/nand_base.c
parentaac0c29d4b8418c5c78b552070ffeda022b16949 (diff)
mtd: nand: raw: allow to disable unneeded ECC layouts
Each ECC layout consumes about 2984 bytes in the .data section. Allow to disable the default ECC layouts if a driver is known to provide its own ECC layout. Signed-off-by: Stefan Agner <stefan.agner@toradex.com> Reviewed-by: Lukasz Majewski <lukma@denx.de> Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Diffstat (limited to 'drivers/mtd/nand/raw/nand_base.c')
-rw-r--r--drivers/mtd/nand/raw/nand_base.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
index 92daebe120..6d2ff58d86 100644
--- a/drivers/mtd/nand/raw/nand_base.c
+++ b/drivers/mtd/nand/raw/nand_base.c
@@ -47,6 +47,7 @@
#include <linux/errno.h>
/* Define default oob placement schemes for large and small page devices */
+#ifdef CONFIG_SYS_NAND_DRIVER_ECC_LAYOUT
static struct nand_ecclayout nand_oob_8 = {
.eccbytes = 3,
.eccpos = {0, 1, 2},
@@ -89,6 +90,7 @@ static struct nand_ecclayout nand_oob_128 = {
{.offset = 2,
.length = 78} }
};
+#endif
static int nand_get_device(struct mtd_info *mtd, int new_state);
@@ -4339,6 +4341,7 @@ int nand_scan_tail(struct mtd_info *mtd)
*/
if (!ecc->layout && (ecc->mode != NAND_ECC_SOFT_BCH)) {
switch (mtd->oobsize) {
+#ifdef CONFIG_SYS_NAND_DRIVER_ECC_LAYOUT
case 8:
ecc->layout = &nand_oob_8;
break;
@@ -4351,6 +4354,7 @@ int nand_scan_tail(struct mtd_info *mtd)
case 128:
ecc->layout = &nand_oob_128;
break;
+#endif
default:
pr_warn("No oob scheme defined for oobsize %d\n",
mtd->oobsize);