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mtd: nand: Add a NAND_CMD_STATUS when using write verification

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To make sure the NAND chip is properly programmed we need a status
command before each page write. When CONFIG_MTD_NAND_VERIFY_WRITE=y this
assumption is broken when writing multiple pages consecutively. This
patch fixes this.

Signed-off-by: Bastian Hecht <hechtb@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
Bastian Hecht
2012-04-27 12:19:31 +02:00
committed by David Woodhouse
parent b6778fd781
commit 09cbe581e3
1 changed files with 3 additions and 0 deletions
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3
drivers/mtd/nand/nand_base.c
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@@ -2118,6 +2118,9 @@ static int nand_write_page(struct mtd_info *mtd, struct nand_chip *chip,
if (chip->verify_buf(mtd, buf, mtd->writesize)) if (chip->verify_buf(mtd, buf, mtd->writesize))
return -EIO; return -EIO;
/* Make sure the next page prog is preceded by a status read */
chip->cmdfunc(mtd, NAND_CMD_STATUS, -1, -1);
#endif #endif
return 0; return 0;
} }