[PATCH v4 07/12] mtd: nand: add more comment for MTD_NANDFLASH/MTD_MLCNANDFLASH

Huang Shijie b32955 at freescale.com
Wed Sep 25 02:58:16 EDT 2013


In current code, the MTD_NANDFLASH is used to represent both the SLC and
MLC. It is confusing to us.

By adding an explicit comment about these two macros, this patch makes it
clear that:
	MTD_NANDFLASH    : stands for SLC nand,
	MTD_MLCNANDFLASH : stands for MLC nand(including TLC).

Signed-off-by: Huang Shijie <b32955 at freescale.com>
---
 include/uapi/mtd/mtd-abi.h |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/uapi/mtd/mtd-abi.h b/include/uapi/mtd/mtd-abi.h
index 36eace0..16a9406 100644
--- a/include/uapi/mtd/mtd-abi.h
+++ b/include/uapi/mtd/mtd-abi.h
@@ -94,10 +94,10 @@ struct mtd_write_req {
 #define MTD_RAM			1
 #define MTD_ROM			2
 #define MTD_NORFLASH		3
-#define MTD_NANDFLASH		4
+#define MTD_NANDFLASH		4	/* stand for SLC nand */
 #define MTD_DATAFLASH		6
 #define MTD_UBIVOLUME		7
-#define MTD_MLCNANDFLASH	8
+#define MTD_MLCNANDFLASH	8	/* stand for MLC nand(including TLC) */
 
 #define MTD_WRITEABLE		0x400	/* Device is writeable */
 #define MTD_BIT_WRITEABLE	0x800	/* Single bits can be flipped */
-- 
1.7.1





More information about the linux-mtd mailing list