---

yaml
---
r: 274934
b: refs/heads/master
c: 9ce244b
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 10a2bcae99267b28e058b089fda30de7397b69f5
+refs/heads/master: 9ce244b3fb416ce6600e05612ac46b9692dcc638

trunk/drivers/mtd/mtdchar.c

@@ -391,6 +391,7 @@ static int mtd_do_writeoob(struct file *file, struct mtd_info *mtd,
 	uint64_t start, uint32_t length, void __user *ptr,
 	uint32_t __user *retp)
 {
+	struct mtd_file_info *mfi = file->private_data;
 	struct mtd_oob_ops ops;
 	uint32_t retlen;
 	int ret = 0;
@@ -412,7 +413,7 @@ static int mtd_do_writeoob(struct file *file, struct mtd_info *mtd,
 	ops.ooblen = length;
 	ops.ooboffs = start & (mtd->writesize - 1);
 	ops.datbuf = NULL;
-	ops.mode = MTD_OOB_PLACE;
+	ops.mode = (mfi->mode == MTD_MODE_RAW) ? MTD_OOB_RAW : MTD_OOB_PLACE;
 
 	if (ops.ooboffs && ops.ooblen > (mtd->oobsize - ops.ooboffs))
 		return -EINVAL;

trunk/drivers/mtd/nand/nand_base.c

@@ -2404,7 +2404,11 @@ static int nand_do_write_oob(struct mtd_info *mtd, loff_t to,
 		chip->pagebuf = -1;
 
 	nand_fill_oob(mtd, ops->oobbuf, ops->ooblen, ops);
-	status = chip->ecc.write_oob(mtd, chip, page & chip->pagemask);
+
+	if (ops->mode == MTD_OOB_RAW)
+		status = chip->ecc.write_oob_raw(mtd, chip, page & chip->pagemask);
+	else
+		status = chip->ecc.write_oob(mtd, chip, page & chip->pagemask);
 
 	if (status)
 		return status;
@@ -3380,6 +3384,10 @@ int nand_scan_tail(struct mtd_info *mtd)
 		BUG();
 	}
 
+	/* For many systems, the standard OOB write also works for raw */
+	if (!chip->ecc.write_oob_raw)
+		chip->ecc.write_oob_raw = chip->ecc.write_oob;
+
 	/*
 	 * The number of bytes available for a client to place data into
 	 * the out of band area.

trunk/include/linux/mtd/nand.h

@@ -340,6 +340,7 @@ struct nand_hw_control {
  * @read_subpage:	function to read parts of the page covered by ECC.
  * @write_page:	function to write a page according to the ECC generator
  *		requirements.
+ * @write_oob_raw:	function to write chip OOB data without ECC
  * @read_oob:	function to read chip OOB data
  * @write_oob:	function to write chip OOB data
  */
@@ -368,6 +369,8 @@ struct nand_ecc_ctrl {
 			uint32_t offs, uint32_t len, uint8_t *buf);
 	void (*write_page)(struct mtd_info *mtd, struct nand_chip *chip,
 			const uint8_t *buf);
+	int (*write_oob_raw)(struct mtd_info *mtd, struct nand_chip *chip,
+			int page);
 	int (*read_oob)(struct mtd_info *mtd, struct nand_chip *chip, int page,
 			int sndcmd);
 	int (*write_oob)(struct mtd_info *mtd, struct nand_chip *chip,