drivers/mtd: transfer NAND notions to MTD core

Change NAND_WRITE into MTD_WRITE.
Change "page_shift" references in the core, which are purely
NAND, into mtd->writesize which is MTD generic.
Rename all "info" (struct mtd_info) into "mtd".

Also provide a parameter to add_mtd_device() so that legacy
nand devices still appear as nand<N>.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

14 files changed, 25 insertions, 30 deletions

diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
index 1cc29a8eca..b6e38ffea1 100644
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -8,11 +8,6 @@ menuconfig NAND
 
 if NAND
 
-config NAND_WRITE
-	bool
-	default y
-	prompt "Support writing to Nand"
-
 config NAND_ECC_SOFT
 	bool
 	default y
diff --git a/drivers/mtd/nand/Makefile b/drivers/mtd/nand/Makefile
index 26b65a7dc5..00b7b2731c 100644
--- a/drivers/mtd/nand/Makefile
+++ b/drivers/mtd/nand/Makefile
@@ -1,7 +1,7 @@
 
 # Generic NAND options
 obj-$(CONFIG_NAND)			+= nand_ecc.o
-obj-$(CONFIG_NAND_WRITE)		+= nand_write.o
+obj-$(CONFIG_MTD_WRITE)			+= nand_write.o
 obj-$(CONFIG_NAND_ECC_SOFT)		+= nand_ecc.o nand_swecc.o
 obj-$(CONFIG_NAND_ECC_HW)		+= nand_hwecc.o
 obj-$(CONFIG_NAND_ECC_HW_SYNDROME)	+= nand_hwecc_syndrome.o
diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c
index 8cc1b51f7f..534a065783 100644
--- a/drivers/mtd/nand/atmel_nand.c
+++ b/drivers/mtd/nand/atmel_nand.c
@@ -485,7 +485,7 @@ static int __init atmel_nand_probe(struct device_d *dev)
 		goto err_scan_tail;
 	}
 
-	add_mtd_device(mtd);
+	add_mtd_device(mtd, "nand");
 
 	if (!res)
 		return res;
diff --git a/drivers/mtd/nand/diskonchip.c b/drivers/mtd/nand/diskonchip.c
index 2433945571..83235759e1 100644
--- a/drivers/mtd/nand/diskonchip.c
+++ b/drivers/mtd/nand/diskonchip.c
@@ -1358,7 +1358,7 @@ static int __init nftl_scan_bbt(struct mtd_info *mtd)
 	   At least as nand_bbt.c is currently written. */
 	if ((ret = nand_scan_bbt(mtd, NULL)))
 		return ret;
-	add_mtd_device(mtd);
+	add_mtd_device(mtd, "nand");
 #ifdef CONFIG_MTD_PARTITIONS
 	if (!no_autopart)
 		add_mtd_partitions(mtd, parts, numparts);
diff --git a/drivers/mtd/nand/nand-bb.c b/drivers/mtd/nand/nand-bb.c
index 73ccab38dd..bd30438958 100644
--- a/drivers/mtd/nand/nand-bb.c
+++ b/drivers/mtd/nand/nand-bb.c
@@ -90,7 +90,7 @@ static ssize_t nand_bb_read(struct cdev *cdev, void *buf, size_t count,
 /* Must be a multiple of the largest NAND page size */
 #define BB_WRITEBUF_SIZE	4096
 
-#ifdef CONFIG_NAND_WRITE
+#ifdef CONFIG_MTD_WRITE
 static int nand_bb_write_buf(struct nand_bb *bb, size_t count)
 {
 	int ret, now;
@@ -185,7 +185,7 @@ static int nand_bb_close(struct cdev *cdev)
 {
 	struct nand_bb *bb = cdev->priv;
 
-#ifdef CONFIG_NAND_WRITE
+#ifdef CONFIG_MTD_WRITE
 	if (bb->needs_write)
 		nand_bb_write_buf(bb, bb->offset % BB_WRITEBUF_SIZE);
 #endif
@@ -250,7 +250,7 @@ static struct file_operations nand_bb_ops = {
 	.close  = nand_bb_close,
 	.read  	= nand_bb_read,
 	.lseek	= nand_bb_lseek,
-#ifdef CONFIG_NAND_WRITE
+#ifdef CONFIG_MTD_WRITE
 	.write 	= nand_bb_write,
 	.erase	= nand_bb_erase,
 #endif
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index ec0f4a3e11..c4eca0d2a3 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -1006,7 +1006,7 @@ static void nand_set_defaults(struct nand_chip *chip, int busw)
 		chip->read_word = nand_read_word;
 	if (!chip->block_bad)
 		chip->block_bad = nand_block_bad;
-#ifdef CONFIG_NAND_WRITE
+#ifdef CONFIG_MTD_WRITE
 	if (!chip->block_markbad)
 		chip->block_markbad = nand_default_block_markbad;
 	if (!chip->write_buf)
@@ -1168,7 +1168,7 @@ static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
 	if (*maf_id != NAND_MFR_SAMSUNG && !type->pagesize)
 		chip->options &= ~NAND_SAMSUNG_LP_OPTIONS;
 
-#ifdef CONFIG_NAND_WRITE
+#ifdef CONFIG_MTD_WRITE
 	/* Check for AND chips with 4 page planes */
 	if (chip->options & NAND_4PAGE_ARRAY)
 		chip->erase_cmd = multi_erase_cmd;
@@ -1297,7 +1297,7 @@ int nand_scan_tail(struct mtd_info *mtd)
 		}
 	}
 
-#ifdef CONFIG_NAND_WRITE
+#ifdef CONFIG_MTD_WRITE
 	if (!chip->write_page)
 		chip->write_page = nand_write_page;
 #endif
@@ -1308,7 +1308,7 @@ int nand_scan_tail(struct mtd_info *mtd)
 	 */
 	if (!chip->ecc.read_page_raw)
 		chip->ecc.read_page_raw = nand_read_page_raw;
-#ifdef CONFIG_NAND_WRITE
+#ifdef CONFIG_MTD_WRITE
 	if (!chip->ecc.write_page_raw)
 		chip->ecc.write_page_raw = nand_write_page_raw;
 #endif
@@ -1335,7 +1335,7 @@ int nand_scan_tail(struct mtd_info *mtd)
 		printk(KERN_WARNING "NAND_ECC_NONE selected by board driver. "
 		       "This is not recommended !!\n");
 		chip->ecc.read_page = nand_read_page_raw;
-#ifdef CONFIG_NAND_WRITE
+#ifdef CONFIG_MTD_WRITE
 		chip->ecc.write_page = nand_write_page_raw;
 		chip->ecc.write_oob = nand_write_oob_std;
 #endif
@@ -1401,7 +1401,7 @@ int nand_scan_tail(struct mtd_info *mtd)
 	/* Fill in remaining MTD driver data */
 	mtd->type = MTD_NANDFLASH;
 	mtd->flags = MTD_CAP_NANDFLASH;
-#ifdef CONFIG_NAND_WRITE
+#ifdef CONFIG_MTD_WRITE
 	mtd->erase = nand_erase;
 	mtd->write = nand_write;
 	mtd->write_oob = nand_write_oob;
@@ -1413,7 +1413,7 @@ int nand_scan_tail(struct mtd_info *mtd)
 	mtd->lock = NULL;
 	mtd->unlock = NULL;
 	mtd->block_isbad = nand_block_isbad;
-#ifdef CONFIG_NAND_WRITE
+#ifdef CONFIG_MTD_WRITE
 	mtd->block_markbad = nand_block_markbad;
 #endif
 	/* propagate ecc.layout to mtd_info */
diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c
index bf3a7dbc74..c1696eead0 100644
--- a/drivers/mtd/nand/nand_bbt.c
+++ b/drivers/mtd/nand/nand_bbt.c
@@ -557,7 +557,7 @@ static int search_read_bbts(struct mtd_info *mtd, uint8_t * buf, struct nand_bbt
  * (Re)write the bad block table
  *
 */
-#ifdef CONFIG_NAND_WRITE
+#ifdef CONFIG_MTD_WRITE
 static int write_bbt(struct mtd_info *mtd, uint8_t *buf,
 		     struct nand_bbt_descr *td, struct nand_bbt_descr *md,
 		     int chipsel)
diff --git a/drivers/mtd/nand/nand_hwecc.c b/drivers/mtd/nand/nand_hwecc.c
index 5ead49c60c..a48efa1074 100644
--- a/drivers/mtd/nand/nand_hwecc.c
+++ b/drivers/mtd/nand/nand_hwecc.c
@@ -61,7 +61,7 @@ static int nand_read_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip,
  * @chip:	nand chip info structure
  * @buf:	data buffer
  */
-#ifdef CONFIG_NAND_WRITE
+#ifdef CONFIG_MTD_WRITE
 static void nand_write_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip,
 				  const uint8_t *buf)
 {
@@ -94,7 +94,7 @@ void nand_init_ecc_hw(struct nand_chip *chip)
 	if (!chip->ecc.read_oob)
 		chip->ecc.read_oob = nand_read_oob_std;
 #endif
-#ifdef CONFIG_NAND_WRITE
+#ifdef CONFIG_MTD_WRITE
 	if (!chip->ecc.write_oob)
 		chip->ecc.write_oob = nand_write_oob_std;
 	if (!chip->ecc.write_page)
diff --git a/drivers/mtd/nand/nand_hwecc_syndrome.c b/drivers/mtd/nand/nand_hwecc_syndrome.c
index dd067c9970..1493b88439 100644
--- a/drivers/mtd/nand/nand_hwecc_syndrome.c
+++ b/drivers/mtd/nand/nand_hwecc_syndrome.c
@@ -72,7 +72,7 @@ static int nand_read_page_syndrome(struct mtd_info *mtd, struct nand_chip *chip,
  * The hw generator calculates the error syndrome automatically. Therefor
  * we need a special oob layout and handling.
  */
-#ifdef CONFIG_NAND_WRITE
+#ifdef CONFIG_MTD_WRITE
 static void nand_write_page_syndrome(struct mtd_info *mtd,
 				    struct nand_chip *chip, const uint8_t *buf)
 {
@@ -155,7 +155,7 @@ static int nand_read_oob_syndrome(struct mtd_info *mtd, struct nand_chip *chip,
  * @chip:	nand chip info structure
  * @page:	page number to write
  */
-#ifdef CONFIG_NAND_WRITE
+#ifdef CONFIG_MTD_WRITE
 static int nand_write_oob_syndrome(struct mtd_info *mtd,
 				   struct nand_chip *chip, int page)
 {
@@ -216,7 +216,7 @@ void nand_init_ecc_hw_syndrome(struct nand_chip *chip)
 		chip->ecc.read_page = nand_read_page_syndrome;
 	if (!chip->ecc.read_oob)
 		chip->ecc.read_oob = nand_read_oob_syndrome;
-#ifdef CONFIG_NAND_WRITE
+#ifdef CONFIG_MTD_WRITE
 	if (!chip->ecc.write_page)
 		chip->ecc.write_page = nand_write_page_syndrome;
 	if (!chip->ecc.write_oob)
diff --git a/drivers/mtd/nand/nand_imx.c b/drivers/mtd/nand/nand_imx.c
index c8c69d602e..85cfbeda95 100644
--- a/drivers/mtd/nand/nand_imx.c
+++ b/drivers/mtd/nand/nand_imx.c
@@ -1176,7 +1176,7 @@ static int __init imxnd_probe(struct device_d *dev)
 		goto escan;
 	}
 
-	add_mtd_device(mtd);
+	add_mtd_device(mtd, "nand");
 
 	dev->priv = host;
 
diff --git a/drivers/mtd/nand/nand_omap_gpmc.c b/drivers/mtd/nand/nand_omap_gpmc.c
index d5e642aefe..9fb11323f7 100644
--- a/drivers/mtd/nand/nand_omap_gpmc.c
+++ b/drivers/mtd/nand/nand_omap_gpmc.c
@@ -956,7 +956,7 @@ static int gpmc_nand_probe(struct device_d *pdev)
 	dev_set_param(pdev, "eccmode", ecc_mode_strings[pdata->ecc_mode]);
 
 	/* We are all set to register with the system now! */
-	err = add_mtd_device(minfo);
+	err = add_mtd_device(minfo, "nand");
 	if (err) {
 		dev_dbg(pdev, "device registration failed\n");
 		goto out_release_mem;
diff --git a/drivers/mtd/nand/nand_s3c2410.c b/drivers/mtd/nand/nand_s3c2410.c
index c5f5d97db3..ed45788622 100644
--- a/drivers/mtd/nand/nand_s3c2410.c
+++ b/drivers/mtd/nand/nand_s3c2410.c
@@ -485,7 +485,7 @@ static int s3c24x0_nand_probe(struct device_d *dev)
 		goto on_error;
 	}
 
-	return add_mtd_device(mtd);
+	return add_mtd_device(mtd, "nand");
 	
 on_error:
 	free(host);
diff --git a/drivers/mtd/nand/nand_swecc.c b/drivers/mtd/nand/nand_swecc.c
index a5edffaece..95dfbd8083 100644
--- a/drivers/mtd/nand/nand_swecc.c
+++ b/drivers/mtd/nand/nand_swecc.c
@@ -57,7 +57,7 @@ static int nand_read_page_swecc(struct mtd_info *mtd, struct nand_chip *chip,
  * @chip:	nand chip info structure
  * @buf:	data buffer
  */
-#ifdef CONFIG_NAND_WRITE
+#ifdef CONFIG_MTD_WRITE
 static void nand_write_page_swecc(struct mtd_info *mtd, struct nand_chip *chip,
 				  const uint8_t *buf)
 {
@@ -85,7 +85,7 @@ void nand_init_ecc_soft(struct nand_chip *chip)
 	chip->ecc.correct = nand_correct_data;
 	chip->ecc.read_page = nand_read_page_swecc;
 	chip->ecc.read_oob = nand_read_oob_std;
-#ifdef CONFIG_NAND_WRITE
+#ifdef CONFIG_MTD_WRITE
 	chip->ecc.write_page = nand_write_page_swecc;
 	chip->ecc.write_oob = nand_write_oob_std;
 #endif
diff --git a/drivers/mtd/nand/nomadik_nand.c b/drivers/mtd/nand/nomadik_nand.c
index c1e93ad076..05d61c2bf4 100644
--- a/drivers/mtd/nand/nomadik_nand.c
+++ b/drivers/mtd/nand/nomadik_nand.c
@@ -220,7 +220,7 @@ static int nomadik_nand_probe(struct device_d *dev)
 	}
 
 	pr_info("Registering %s as whole device\n", mtd->name);
-	add_mtd_device(mtd);
+	add_mtd_device(mtd, "nand");
 
 	return 0;