1 files changed, 8 insertions, 0 deletions

diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index eeb4a9e67b51..9c3c55254a4e 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -437,6 +437,12 @@ struct nand_buffers {
  *                      bad block marker position; i.e., BBM == 11110111b is
  *                      not bad when badblockbits == 7
  * @cellinfo:           [INTERN] MLC/multichip data from chip ident
+ * @ecc_strength_ds:    [INTERN] ECC correctability from the datasheet.
+ *                      Minimum amount of bit errors per @ecc_step_ds guaranteed
+ *                      to be correctable. If unknown, set to zero.
+ * @ecc_step_ds:        [INTERN] ECC step required by the @ecc_strength_ds,
+ *                      also from the datasheet. It is the recommended ECC step
+ *                      size, if known; if unknown, set to zero.
  * @numchips:           [INTERN] number of physical chips
  * @chipsize:           [INTERN] the size of one chip for multichip arrays
  * @pagemask:           [INTERN] page number mask = number of (pages / chip) - 1
@@ -513,6 +519,8 @@ struct nand_chip {
         unsigned int pagebuf_bitflips;
         int subpagesize;
         uint8_t cellinfo;
+        uint16_t ecc_strength_ds;
+        uint16_t ecc_step_ds;
         int badblockpos;
         int badblockbits;