1 files changed, 5 insertions, 0 deletions

diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index 863e22a0ddb5..83f678702dff 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -177,6 +177,7 @@ typedef enum {
 #define NAND_MUST_PAD(chip) (!(chip->options & NAND_NO_PADDING))
 #define NAND_HAS_CACHEPROG(chip) ((chip->options & NAND_CACHEPRG))
 #define NAND_HAS_COPYBACK(chip) ((chip->options & NAND_COPYBACK))
+#define NAND_SUBPAGE_READ(chip) ((chip->ecc.mode == NAND_ECC_SOFT))
 
 /* Mask to zero out the chip options, which come from the id table */
 #define NAND_CHIPOPTIONS_MSK    (0x0000ffff & ~NAND_NO_AUTOINCR)
@@ -274,6 +275,10 @@ struct nand_ecc_ctrl {
         int                     (*read_page)(struct mtd_info *mtd,
                                              struct nand_chip *chip,
                                              uint8_t *buf);
+        int                     (*read_subpage)(struct mtd_info *mtd,
+                                             struct nand_chip *chip,
+                                             uint32_t offs, uint32_t len,
+                                             uint8_t *buf);
         void                    (*write_page)(struct mtd_info *mtd,
                                               struct nand_chip *chip,
                                               const uint8_t *buf);