diff options
| author | Joe Hershberger | 2012-11-05 06:46:31 +0000 |
|---|---|---|
| committer | Scott Wood | 2012-11-26 15:41:28 -0600 |
| commit | c788ecfdc3eb577757ffc1bfb8416added07ef33 (patch) | |
| tree | 0e7c20915cd081937f0b504b102e744d48c2bd5c /include/linux | |
| parent | 79da5e3d5d6be28d1c82265bbeb0ff4633fc5535 (diff) | |
nand: Move the sub-page read support enable to a flag
Use a flag instead of a hard-coded macro so that sub-page reads can be
enabled in other cases (such as on-die ecc).
This is the same as a5ff4f102937a3492bca4a9ff0c341d78813414c in Linux
Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/mtd/nand.h | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index f63e04b634d..e9e904523a5 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -194,6 +194,9 @@ typedef enum { /* Device behaves just like nand, but is readonly */ #define NAND_ROM 0x00000800 +/* Device supports subpage reads */ +#define NAND_SUBPAGE_READ 0x00001000 + /* Options valid for Samsung large page devices */ #define NAND_SAMSUNG_LP_OPTIONS \ (NAND_NO_PADDING | NAND_CACHEPRG | NAND_COPYBACK) @@ -203,9 +206,7 @@ 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)) -/* Large page NAND with SOFT_ECC should support subpage reads */ -#define NAND_SUBPAGE_READ(chip) ((chip->ecc.mode == NAND_ECC_SOFT) \ - && (chip->page_shift > 9)) +#define NAND_HAS_SUBPAGE_READ(chip) ((chip->options & NAND_SUBPAGE_READ)) /* Non chip related options */ /* |