mtd: nand: Remove jz4740 driver

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index 1bca6fa..3f440b1 100644
@@ -372,8 +372,8 @@ next_bank:	;
 #endif
 
 #if defined(CONFIG_CMD_IMLS_NAND)
-static int nand_imls_legacyimage(nand_info_t *nand, int nand_dev, loff_t off,
-		size_t len)
+static int nand_imls_legacyimage(struct mtd_info *mtd, int nand_dev,
+				 loff_t off, size_t len)
 {
 	void *imgdata;
 	int ret;

@@ -386,8 +386,7 @@ static int nand_imls_legacyimage(nand_info_t *nand, int nand_dev, loff_t off,
 		return -ENOMEM;
 	}
 
-	ret = nand_read_skip_bad(nand, off, &len,
-			imgdata);
+	ret = nand_read_skip_bad(mtd, off, &len, imgdata);
 	if (ret < 0 && ret != -EUCLEAN) {
 		free(imgdata);
 		return ret;

@@ -413,8 +412,8 @@ static int nand_imls_legacyimage(nand_info_t *nand, int nand_dev, loff_t off,
 	return 0;
 }
 
-static int nand_imls_fitimage(nand_info_t *nand, int nand_dev, loff_t off,
-		size_t len)
+static int nand_imls_fitimage(struct mtd_info *mtd, int nand_dev, loff_t off,
+			      size_t len)
 {
 	void *imgdata;
 	int ret;

@@ -427,8 +426,7 @@ static int nand_imls_fitimage(nand_info_t *nand, int nand_dev, loff_t off,
 		return -ENOMEM;
 	}
 
-	ret = nand_read_skip_bad(nand, off, &len,
-			imgdata);
+	ret = nand_read_skip_bad(mtd, off, &len, imgdata);
 	if (ret < 0 && ret != -EUCLEAN) {
 		free(imgdata);
 		return ret;

@@ -449,7 +447,7 @@ static int nand_imls_fitimage(nand_info_t *nand, int nand_dev, loff_t off,
 
 static int do_imls_nand(void)
 {
-	nand_info_t *nand;
+	struct mtd_info *mtd;
 	int nand_dev = nand_curr_device;
 	size_t len;
 	loff_t off;

@@ -463,20 +461,20 @@ static int do_imls_nand(void)
 	printf("\n");
 
 	for (nand_dev = 0; nand_dev < CONFIG_SYS_MAX_NAND_DEVICE; nand_dev++) {
-		nand = &nand_info[nand_dev];
-		if (!nand->name || !nand->size)
+		mtd = &nand_info[nand_dev];
+		if (!mtd->name || !mtd->size)
 			continue;
 
-		for (off = 0; off < nand->size; off += nand->erasesize) {
+		for (off = 0; off < mtd->size; off += mtd->erasesize) {
 			const image_header_t *header;
 			int ret;
 
-			if (nand_block_isbad(nand, off))
+			if (nand_block_isbad(mtd, off))
 				continue;
 
 			len = sizeof(buffer);
 
-			ret = nand_read(nand, off, &len, (u8 *)buffer);
+			ret = nand_read(mtd, off, &len, (u8 *)buffer);
 			if (ret < 0 && ret != -EUCLEAN) {
 				printf("NAND read error %d@offset %08llX\n",
 						ret, off);

@@ -489,13 +487,13 @@ static int do_imls_nand(void)
 				header = (const image_header_t *)buffer;
 
 				len = image_get_image_size(header);
-				nand_imls_legacyimage(nand, nand_dev, off, len);
+				nand_imls_legacyimage(mtd, nand_dev, off, len);
 				break;
 #endif
 #if defined(CONFIG_FIT)
 			case IMAGE_FORMAT_FIT:
 				len = fit_get_size(buffer);
-				nand_imls_fitimage(nand, nand_dev, off, len);
+				nand_imls_fitimage(mtd, nand_dev, off, len);
 				break;
 #endif
 			}

index 0b2eefa..e4eaa48 100644
@@ -242,11 +242,11 @@ static int mtd_id_parse(const char *id, const char **ret_id, u8 *dev_type, u8 *d
 static inline u32 get_part_sector_size_nand(struct mtdids *id)
 {
 #if defined(CONFIG_JFFS2_NAND) && defined(CONFIG_CMD_NAND)
-	nand_info_t *nand;
+	struct mtd_info *mtd;
 
-	nand = &nand_info[id->num];
+	mtd = &nand_info[id->num];
 
-	return nand->erasesize;
+	return mtd->erasesize;
 #else
 	BUG();
 	return 0;

429 lines not on this page · raw message

index b32eeac..0debc2c 100644
@@ -276,7 +276,7 @@ static int readenv(size_t offset, u_char *buf)
 #endif /* #if defined(CONFIG_SPL_BUILD) */
 
 #ifdef CONFIG_ENV_OFFSET_OOB
-int get_nand_env_oob(nand_info_t *nand, unsigned long *result)
+int get_nand_env_oob(struct mtd_info *mtd, unsigned long *result)
 {
 	struct mtd_oob_ops ops;
 	uint32_t oob_buf[ENV_OFFSET_SIZE / sizeof(uint32_t)];

@@ -288,14 +288,14 @@ int get_nand_env_oob(nand_info_t *nand, unsigned long *result)
 	ops.ooblen	= ENV_OFFSET_SIZE;
 	ops.oobbuf	= (void *)oob_buf;
 
-	ret = nand->read_oob(nand, ENV_OFFSET_SIZE, &ops);
+	ret = mtd->read_oob(mtd, ENV_OFFSET_SIZE, &ops);
 	if (ret) {
 		printf("error reading OOB block 0\n");
 		return ret;
 	}
 
 	if (oob_buf[0] == ENV_OOB_MARKER) {
-		*result = oob_buf[1] * nand->erasesize;
+		*result = oob_buf[1] * mtd->erasesize;
 	} else if (oob_buf[0] == ENV_OOB_MARKER_OLD) {
 		*result = oob_buf[1];
 	} else {

index 9ca8602..c770eff 100644
@@ -19,7 +19,7 @@
 static char *response_str;
 
 struct fb_nand_sparse {
-	nand_info_t		*nand;
+	struct mtd_info		*nand;
 	struct part_info	*part;
 };
 

@@ -34,7 +34,7 @@ __weak int board_fastboot_write_partition_setup(char *name)
 }
 
 static int fb_nand_lookup(const char *partname, char *response,
-			  nand_info_t **nand,
+			  struct mtd_info **nand,
 			  struct part_info **part)
 {
 	struct mtd_device *dev;

@@ -62,12 +62,12 @@ static int fb_nand_lookup(const char *partname, char *response,
 		return -EINVAL;
 	}
 
-	*nand = &nand_info[dev->id->num];
+	*mtd = &nand_info[dev->id->num];
 
 	return 0;
 }
 
-static int _fb_nand_erase(nand_info_t *nand, struct part_info *part)
+static int _fb_nand_erase(struct mtd_info *mtd, struct part_info *part)
 {
 	nand_erase_options_t opts;
 	int ret;

@@ -80,7 +80,7 @@ static int _fb_nand_erase(nand_info_t *nand, struct part_info *part)
 	printf("Erasing blocks 0x%llx to 0x%llx\n",
 	       part->offset, part->offset + part->size);
 
-	ret = nand_erase_opts(nand, &opts);
+	ret = nand_erase_opts(mtd, &opts);
 	if (ret)
 		return ret;
 

@@ -90,7 +90,7 @@ static int _fb_nand_erase(nand_info_t *nand, struct part_info *part)
 	return 0;
 }
 
-static int _fb_nand_write(nand_info_t *nand, struct part_info *part,
+static int _fb_nand_write(struct mtd_info *mtd, struct part_info *part,
 			  void *buffer, unsigned int offset,
 			  unsigned int length, size_t *written)
 {

@@ -100,7 +100,7 @@ static int _fb_nand_write(nand_info_t *nand, struct part_info *part,
 	flags |= WITH_DROP_FFS;
 #endif
 
-	return nand_write_skip_bad(nand, offset, &length, written,
+	return nand_write_skip_bad(mtd, offset, &length, written,
 				   part->size - (offset - part->offset),
 				   buffer, flags);
 }

@@ -131,13 +131,13 @@ void fb_nand_flash_write(const char *partname, unsigned int session_id,
 			 char *response)
 {
 	struct part_info *part;
-	nand_info_t *nand = NULL;
+	struct mtd_info *mtd = NULL;
 	int ret;
 
 	/* initialize the response buffer */
 	response_str = response;
 
-	ret = fb_nand_lookup(partname, response, &nand, &part);
+	ret = fb_nand_lookup(partname, response, &mtd, &part);
 	if (ret) {
 		error("invalid NAND device");
 		fastboot_fail(response_str, "invalid NAND device");

@@ -152,10 +152,10 @@ void fb_nand_flash_write(const char *partname, unsigned int session_id,
 		struct fb_nand_sparse sparse_priv;
 		sparse_storage_t sparse;
 
-		sparse_priv.nand = nand;
+		sparse_priv.nand = mtd;
 		sparse_priv.part = part;
 
-		sparse.block_sz = nand->writesize;
+		sparse.block_sz = mtd->writesize;
 		sparse.start = part->offset / sparse.block_sz;
 		sparse.size = part->size  / sparse.block_sz;
 		sparse.name = part->name;

@@ -167,7 +167,7 @@ void fb_nand_flash_write(const char *partname, unsigned int session_id,
 		printf("Flashing raw image at offset 0x%llx\n",
 		       part->offset);
 
-		ret = _fb_nand_write(nand, part, download_buffer, part->offset,
+		ret = _fb_nand_write(mtd, part, download_buffer, part->offset,
 				     download_bytes, NULL);
 
 		printf("........ wrote %u bytes to '%s'\n",

@@ -185,13 +185,13 @@ void fb_nand_flash_write(const char *partname, unsigned int session_id,
 void fb_nand_erase(const char *partname, char *response)
 {
 	struct part_info *part;
-	nand_info_t *nand = NULL;
+	struct mtd_info *mtd = NULL;
 	int ret;
 
 	/* initialize the response buffer */
 	response_str = response;
 
-	ret = fb_nand_lookup(partname, response, &nand, &part);
+	ret = fb_nand_lookup(partname, response, &mtd, &part);
 	if (ret) {
 		error("invalid NAND device");
 		fastboot_fail(response_str, "invalid NAND device");

@@ -202,9 +202,9 @@ void fb_nand_erase(const char *partname, char *response)
 	if (ret)
 		return;
 
-	ret = _fb_nand_erase(nand, part);
+	ret = _fb_nand_erase(mtd, part);
 	if (ret) {
-		error("failed erasing from device %s", nand->name);
+		error("failed erasing from device %s", mtd->name);
 		fastboot_fail(response_str, "failed erasing from device");
 		return;
 	}

index a975492..4652541 100644
@@ -25,7 +25,7 @@ static int nand_block_op(enum dfu_op op, struct dfu_entity *dfu,
 	loff_t start, lim;
 	size_t count, actual;
 	int ret;
-	nand_info_t *nand;
+	struct mtd_info *mtd;
 
 	/* if buf == NULL return total size of the area */
 	if (buf == NULL) {

@@ -44,11 +44,11 @@ static int nand_block_op(enum dfu_op op, struct dfu_entity *dfu,
 		return -1;
 	}
 
-	nand = &nand_info[nand_curr_device];
+	mtd = &nand_info[nand_curr_device];
 
 	if (op == DFU_OP_READ) {
-		ret = nand_read_skip_bad(nand, start, &count, &actual,
-				lim, buf);
+		ret = nand_read_skip_bad(mtd, start, &count, &actual,
+					 lim, buf);
 	} else {
 		nand_erase_options_t opts;
 

@@ -59,12 +59,12 @@ static int nand_block_op(enum dfu_op op, struct dfu_entity *dfu,
 		opts.quiet = 1;
 		opts.lim = lim;
 		/* first erase */
-		ret = nand_erase_opts(nand, &opts);
+		ret = nand_erase_opts(mtd, &opts);
 		if (ret)
 			return ret;
 		/* then write */
-		ret = nand_write_skip_bad(nand, start, &count, &actual,
-				lim, buf, WITH_WR_VERIFY);
+		ret = nand_write_skip_bad(mtd, start, &count, &actual,
+					  lim, buf, WITH_WR_VERIFY);
 	}
 
 	if (ret != 0) {

@@ -142,7 +142,7 @@ static int dfu_flush_medium_nand(struct dfu_entity *dfu)
 
 	/* in case of ubi partition, erase rest of the partition */
 	if (dfu->data.nand.ubi) {
-		nand_info_t *nand;
+		struct mtd_info *mtd;
 		nand_erase_options_t opts;
 
 		if (nand_curr_device < 0 ||

@@ -152,14 +152,14 @@ static int dfu_flush_medium_nand(struct dfu_entity *dfu)
 			return -1;
 		}
 
-		nand = &nand_info[nand_curr_device];
+		mtd = &nand_info[nand_curr_device];
 
 		memset(&opts, 0, sizeof(opts));
 		opts.offset = dfu->data.nand.start + dfu->offset +
 				dfu->bad_skip;
 		opts.length = dfu->data.nand.start +
 				dfu->data.nand.size - opts.offset;
-		ret = nand_erase_opts(nand, &opts);
+		ret = nand_erase_opts(mtd, &opts);
 		if (ret != 0)
 			printf("Failure erase: %d\n", ret);
 	}

index bf8b2ee..2298c5f 100644
@@ -16,7 +16,7 @@
 #include <linux/mtd/nand_ecc.h>
 
 static int nand_ecc_pos[] = CONFIG_SYS_NAND_ECCPOS;
-nand_info_t nand_info[1];
+struct mtd_info nand_info[1];
 static struct nand_chip nand_chip;
 
 #define ECCSTEPS	(CONFIG_SYS_NAND_PAGE_SIZE / \

index 7cc1de0..e6b3fe8 100644
@@ -1238,7 +1238,7 @@ static int at91_nand_ready(struct mtd_info *mtd)
 
 #ifdef CONFIG_SPL_BUILD
 /* The following code is for SPL */
-static nand_info_t mtd;
+static struct mtd_info mtd;
 static struct nand_chip nand_chip;
 
 static int nand_command(int block, int page, uint32_t offs, u8 cmd)

index 0e7c364..4d691d1 100644
@@ -8,7 +8,7 @@
 #include <nand.h>
 #include <malloc.h>
 
-static nand_info_t mtd;
+static struct mtd_info mtd;
 static struct nand_chip nand_chip;
 
 static void mxs_nand_command(struct mtd_info *mtd, unsigned int command,

index 8f0a921..46f2654 100644
@@ -19,7 +19,7 @@ DECLARE_GLOBAL_DATA_PTR;
 int nand_curr_device = -1;
 
 
-nand_info_t nand_info[CONFIG_SYS_MAX_NAND_DEVICE];
+struct mtd_info nand_info[CONFIG_SYS_MAX_NAND_DEVICE];
 
 #ifndef CONFIG_SYS_NAND_SELF_INIT
 static struct nand_chip nand_chip[CONFIG_SYS_MAX_NAND_DEVICE];

index e69f662..b3978e9 100644
@@ -11,7 +11,7 @@
 #include <linux/mtd/nand_ecc.h>
 
 static int nand_ecc_pos[] = CONFIG_SYS_NAND_ECCPOS;
-static nand_info_t mtd;
+static struct mtd_info mtd;
 static struct nand_chip nand_chip;
 
 #define ECCSTEPS	(CONFIG_SYS_NAND_PAGE_SIZE / \

466 lines not on this page · raw message

index 740f787..9b7af09 100644
@@ -23,7 +23,7 @@
 # define DEBUGF(fmt,args...)
 #endif
 
-static nand_info_t *nand;
+static struct mtd_info *mtd;
 
 /* Compression names */
 static char *compr_names[] = {

@@ -304,7 +304,7 @@ jffs2_1pass_read_inode(struct b_lists *pL, u32 ino, char *dest,
 			len = sizeof(struct jffs2_raw_inode);
 			if (dest)
 				len += jNode->csize;
-			nand_read(nand, jNode->offset, &len, inode);
+			nand_read(mtd, jNode->offset, &len, inode);
 			/* ignore data behind latest known EOF */
 			if (inode->offset > totalSize)
 				continue;

@@ -450,7 +450,7 @@ dump_inode(struct b_lists *pL, struct b_dirent *d, struct b_inode *i)
 
 	if(!d || !i) return -1;
 	len = d->nsize;
-	nand_read(nand, d->offset + sizeof(struct jffs2_raw_dirent),
+	nand_read(mtd, d->offset + sizeof(struct jffs2_raw_dirent),
 		  &len, &fname);
 	fname[d->nsize] = '\0';
 

@@ -592,7 +592,9 @@ jffs2_1pass_resolve_inode(struct b_lists * pL, u32 ino)
 	for (jNode = (struct b_inode *)pL->frag.listHead; jNode; jNode = jNode->next) {
 		if (jNode->ino == jDirFoundIno) {
 			size_t len = jNode->csize;
-			nand_read(nand, jNode->offset + sizeof(struct jffs2_raw_inode), &len, &tmp);
+			nand_read(mtd,
+				  jNode->offset + sizeof(struct jffs2_raw_inode),
+				  &len, &tmp);
 			tmp[jNode->csize] = '\0';
 			break;
 		}

@@ -760,14 +762,14 @@ dump_dirents(struct b_lists *pL)
 #endif
 
 static int
-jffs2_fill_scan_buf(nand_info_t *nand, unsigned char *buf,
+jffs2_fill_scan_buf(struct mtd_info *mtd, unsigned char *buf,
 		    unsigned ofs, unsigned len)
 {
 	int ret;
 	unsigned olen;
 
 	olen = len;
-	ret = nand_read(nand, ofs, &olen, buf);
+	ret = nand_read(mtd, ofs, &olen, buf);
 	if (ret) {
 		printf("nand_read(0x%x bytes from 0x%x) returned %d\n", len, ofs, ret);
 		return ret;

@@ -794,7 +796,7 @@ jffs2_1pass_build_lists(struct part_info * part)
 	u32 counterN = 0;
 
 	struct mtdids *id = part->dev->id;
-	nand = nand_info + id->num;
+	mtd = nand_info + id->num;
 
 	/* if we are building a list we need to refresh the cache. */
 	jffs_init_1pass_list(part);

@@ -802,7 +804,7 @@ jffs2_1pass_build_lists(struct part_info * part)
 	pL->partOffset = part->offset;
 	puts ("Scanning JFFS2 FS:   ");
 
-	sectorsize = nand->erasesize;
+	sectorsize = mtd->erasesize;
 	nr_blocks = part->size / sectorsize;
 	buf = malloc(sectorsize);
 	if (!buf)

@@ -813,10 +815,10 @@ jffs2_1pass_build_lists(struct part_info * part)
 
 		offset = part->offset + i * sectorsize;
 
-		if (nand_block_isbad(nand, offset))
+		if (nand_block_isbad(mtd, offset))
 			continue;
 
-		if (jffs2_fill_scan_buf(nand, buf, offset, EMPTY_SCAN_SIZE))
+		if (jffs2_fill_scan_buf(mtd, buf, offset, EMPTY_SCAN_SIZE))
 			return 0;
 
 		ofs = 0;

@@ -826,7 +828,7 @@ jffs2_1pass_build_lists(struct part_info * part)
 		if (ofs == EMPTY_SCAN_SIZE)
 			continue;
 
-		if (jffs2_fill_scan_buf(nand, buf + EMPTY_SCAN_SIZE, offset + EMPTY_SCAN_SIZE, sectorsize - EMPTY_SCAN_SIZE))
+		if (jffs2_fill_scan_buf(mtd, buf + EMPTY_SCAN_SIZE, offset + EMPTY_SCAN_SIZE, sectorsize - EMPTY_SCAN_SIZE))
 			return 0;
 		offset += ofs;
 

index 50000a1..5e99025 100644
@@ -141,7 +141,7 @@ static const char *yaffs_error_str(void)
 	}
 }
 
-extern nand_info_t nand_info[];
+extern struct mtd_info nand_info[];
 
 void cmd_yaffs_tracemask(unsigned set, unsigned mask)
 {

index 7cbbbd3..eb2d76d 100644
@@ -40,27 +40,27 @@ int nand_register(int devnum);
 extern int board_nand_init(struct nand_chip *nand);
 #endif
 
-typedef struct mtd_info nand_info_t;
-
 extern int nand_curr_device;
-extern nand_info_t nand_info[];
+extern struct mtd_info nand_info[];
 
-static inline int nand_read(nand_info_t *info, loff_t ofs, size_t *len, u_char *buf)
+static inline int nand_read(struct mtd_info *info, loff_t ofs, size_t *len,
+			    u_char *buf)
 {
 	return mtd_read(info, ofs, *len, (size_t *)len, buf);
 }
 
-static inline int nand_write(nand_info_t *info, loff_t ofs, size_t *len, u_char *buf)
+static inline int nand_write(struct mtd_info *info, loff_t ofs, size_t *len,
+			     u_char *buf)
 {
 	return mtd_write(info, ofs, *len, (size_t *)len, buf);
 }
 
-static inline int nand_block_isbad(nand_info_t *info, loff_t ofs)
+static inline int nand_block_isbad(struct mtd_info *info, loff_t ofs)
 {
 	return mtd_block_isbad(info, ofs);
 }
 
-static inline int nand_erase(nand_info_t *info, loff_t off, size_t size)
+static inline int nand_erase(struct mtd_info *info, loff_t off, size_t size)
 {
 	struct erase_info instr;
 

@@ -96,27 +96,28 @@ struct nand_erase_options {
 
 typedef struct nand_erase_options nand_erase_options_t;
 
-int nand_read_skip_bad(nand_info_t *nand, loff_t offset, size_t *length,
+int nand_read_skip_bad(struct mtd_info *mtd, loff_t offset, size_t *length,
 		       size_t *actual, loff_t lim, u_char *buffer);
 
 #define WITH_DROP_FFS	(1 << 0) /* drop trailing all-0xff pages */
 #define WITH_WR_VERIFY	(1 << 1) /* verify data was written correctly */
 
-int nand_write_skip_bad(nand_info_t *nand, loff_t offset, size_t *length,
+int nand_write_skip_bad(struct mtd_info *mtd, loff_t offset, size_t *length,
 			size_t *actual, loff_t lim, u_char *buffer, int flags);
-int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts);
-int nand_torture(nand_info_t *nand, loff_t offset);
-int nand_verify_page_oob(nand_info_t *nand, struct mtd_oob_ops *ops,
-			loff_t ofs);
-int nand_verify(nand_info_t *nand, loff_t ofs, size_t len, u_char *buf);
+int nand_erase_opts(struct mtd_info *mtd,
+		    const nand_erase_options_t *opts);
+int nand_torture(struct mtd_info *mtd, loff_t offset);
+int nand_verify_page_oob(struct mtd_info *mtd, struct mtd_oob_ops *ops,
+			 loff_t ofs);
+int nand_verify(struct mtd_info *mtd, loff_t ofs, size_t len, u_char *buf);
 
 #define NAND_LOCK_STATUS_TIGHT	0x01
 #define NAND_LOCK_STATUS_UNLOCK 0x04
 
-int nand_lock(nand_info_t *meminfo, int tight);
-int nand_unlock(nand_info_t *meminfo, loff_t start, size_t length,
-	int allexcept);
-int nand_get_lock_status(nand_info_t *meminfo, loff_t offset);
+int nand_lock(struct mtd_info *mtd, int tight);
+int nand_unlock(struct mtd_info *mtd, loff_t start, size_t length,
+		int allexcept);
+int nand_get_lock_status(struct mtd_info *mtd, loff_t offset);
 
 int nand_spl_load_image(uint32_t offs, unsigned int size, void *dst);
 void nand_deselect(void);

@@ -135,6 +136,6 @@ __attribute__((noreturn)) void nand_boot(void);
 #define ENV_OOB_MARKER_OLD 0x30564e45 /*"ENV0" in little-endian -- offset is
 					stored as byte number */
 #define ENV_OFFSET_SIZE 8
-int get_nand_env_oob(nand_info_t *nand, unsigned long *result);
+int get_nand_env_oob(struct mtd_info *mtd, unsigned long *result);
 #endif
 int spl_nand_erase_one(int block, int page);

index ce4acc1..e947e54 100644
@@ -259,7 +259,7 @@ static int load_devicetree(void)
 	}
 #ifdef CONFIG_NAND
 	dtbsize = 0x20000;
-	rc = nand_read_skip_bad(&nand_info[0], 0x40000, (size_t *)&dtbsize,
+	rc = nand_read_skip_bad(nand_info[0], 0x40000, (size_t *)&dtbsize,
 				NULL, 0x20000, (u_char *)dtbaddr);
 #else
 	char *dtbname = getenv("dtb");

index 7b7cd2c..6398bcb 100644
@@ -212,7 +212,7 @@ void lcd_show_board_info(void)
 		dram_size += gd->bd->bi_dram[i].size;
 	nand_size = 0;
 	for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; i++)
-		nand_size += nand_info[i].size;
+		nand_size += nand_info[i]->size;
 	lcd_printf ("  %ld MB SDRAM, %ld MB NAND\n",
 		dram_size >> 20,
 		nand_size >> 20 );

index af68e10..04e5812 100644
@@ -191,7 +191,7 @@ void lcd_show_board_info(void)
 		dram_size += gd->bd->bi_dram[i].size;
 	nand_size = 0;
 	for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; i++)
-		nand_size += nand_info[i].size;
+		nand_size += nand_info[i]->size;
 #ifndef CONFIG_SYS_NO_FLASH
 	flash_size = 0;
 	for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; i++)

index 4c64312..6871916 100644
@@ -272,7 +272,7 @@ void lcd_show_board_info(void)
 		dram_size += gd->bd->bi_dram[i].size;
 	nand_size = 0;
 	for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; i++)
-		nand_size += nand_info[i].size;
+		nand_size += nand_info[i]->size;
 	lcd_printf ("  %ld MB SDRAM, %ld MB NAND\n",
 		dram_size >> 20,
 		nand_size >> 20 );

index d3555bb..fc4f50d 100644
@@ -124,7 +124,7 @@ void lcd_show_board_info(void)
 		dram_size += gd->bd->bi_dram[i].size;
 	nand_size = 0;
 	for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; i++)
-		nand_size += nand_info[i].size;
+		nand_size += nand_info[i]->size;
 	lcd_printf("  %ld MB SDRAM, %ld MB NAND\n",
 		dram_size >> 20,
 		nand_size >> 20);

index 9ef2864..994f246 100644
@@ -151,7 +151,7 @@ void lcd_show_board_info(void)
 		dram_size += gd->bd->bi_dram[i].size;
 	nand_size = 0;
 	for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; i++)
-		nand_size += nand_info[i].size;
+		nand_size += nand_info[i]->size;
 	lcd_printf ("  %ld MB SDRAM, %ld MB NAND\n",
 		dram_size >> 20,
 		nand_size >> 20 );

index c14df30..b0d440d 100644
@@ -196,7 +196,7 @@ void lcd_show_board_info(void)
 			dram_size += gd->bd->bi_dram[i].size;
 		nand_size = 0;
 		for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; i++)
-			nand_size += nand_info[i].size;
+			nand_size += nand_info[i]->size;
 		lcd_printf("  %ld MB SDRAM, %ld MB NAND\n",
 			dram_size >> 20,
 			nand_size >> 20);

index e8ee612..fa90270b 100644
@@ -207,7 +207,7 @@ void lcd_show_board_info(void)
 	nand_size = 0;
 #ifdef CONFIG_NAND_ATMEL
 	for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; i++)
-		nand_size += nand_info[i].size;
+		nand_size += nand_info[i]->size;
 #endif
 	lcd_printf("%ld MB SDRAM, %lld MB NAND\n",
 		   dram_size >> 20, nand_size >> 20);

index f4eef96..23ec274 100644
@@ -191,7 +191,7 @@ void lcd_show_board_info(void)
 	nand_size = 0;
 #ifdef CONFIG_NAND_ATMEL
 	for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; i++)
-		nand_size += nand_info[i].size;
+		nand_size += nand_info[i]->size;
 #endif
 	lcd_printf("%ld MB SDRAM, %ld MB NAND\n",
 		   dram_size >> 20, nand_size >> 20);

index aee6217..72bad23 100644
@@ -187,7 +187,7 @@ void lcd_show_board_info(void)
 	nand_size = 0;
 #ifdef CONFIG_NAND_ATMEL
 	for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; i++)
-		nand_size += nand_info[i].size;
+		nand_size += nand_info[i]->size;
 #endif
 	lcd_printf("%ld MB SDRAM, %ld MB NAND\n",
 		   dram_size >> 20, nand_size >> 20);

index 3cc01cb..e2cb94e 100644
@@ -194,7 +194,7 @@ void lcd_show_board_info(void)
 
 	nand_size = 0;
 	for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; i++)
-		nand_size += nand_info[i].size;
+		nand_size += nand_info[i]->size;
 
 	flash_size = 0;
 	for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; i++)

index 276ff80..e9f9b67 100644
@@ -293,7 +293,7 @@ void lcd_show_board_info(void)
 
 	nand_size = 0;
 	for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; i++)
-		nand_size += nand_info[i].size;
+		nand_size += nand_info[i]->size;
 
 	flash_size = 0;
 	for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; i++)

index 3f440b1..57e952e 100644
@@ -461,7 +461,7 @@ static int do_imls_nand(void)
 	printf("\n");
 
 	for (nand_dev = 0; nand_dev < CONFIG_SYS_MAX_NAND_DEVICE; nand_dev++) {
-		mtd = &nand_info[nand_dev];
+		mtd = nand_info[nand_dev];
 		if (!mtd->name || !mtd->size)
 			continue;
 

index e4eaa48..f00d53a 100644
@@ -167,7 +167,7 @@ static int mtd_device_validate(u8 type, u8 num, u32 *size)
 	} else if (type == MTD_DEV_TYPE_NAND) {
 #if defined(CONFIG_JFFS2_NAND) && defined(CONFIG_CMD_NAND)
 		if (num < CONFIG_SYS_MAX_NAND_DEVICE) {
-			*size = nand_info[num].size;
+			*size = nand_info[num]->size;
 			return 0;
 		}
 

@@ -244,7 +244,7 @@ static inline u32 get_part_sector_size_nand(struct mtdids *id)
 #if defined(CONFIG_JFFS2_NAND) && defined(CONFIG_CMD_NAND)
 	struct mtd_info *mtd;
 
-	mtd = &nand_info[id->num];
+	mtd = nand_info[id->num];
 
 	return mtd->erasesize;
 #else

160 lines not on this page · raw message

index 0debc2c..fc99a5e 100644
@@ -132,15 +132,15 @@ static int writeenv(size_t offset, u_char *buf)
 	size_t blocksize, len;
 	u_char *char_ptr;
 
-	blocksize = nand_info[0].erasesize;
+	blocksize = nand_info[0]->erasesize;
 	len = min(blocksize, (size_t)CONFIG_ENV_SIZE);
 
 	while (amount_saved < CONFIG_ENV_SIZE && offset < end) {
-		if (nand_block_isbad(&nand_info[0], offset)) {
+		if (nand_block_isbad(nand_info[0], offset)) {
 			offset += blocksize;
 		} else {
 			char_ptr = &buf[amount_saved];
-			if (nand_write(&nand_info[0], offset, &len, char_ptr))
+			if (nand_write(nand_info[0], offset, &len, char_ptr))
 				return 1;
 
 			offset += blocksize;

@@ -164,7 +164,7 @@ static int erase_and_write_env(const struct env_location *location,
 	int ret = 0;
 
 	printf("Erasing %s...\n", location->name);
-	if (nand_erase_opts(&nand_info[0], &location->erase_opts))
+	if (nand_erase_opts(nand_info[0], &location->erase_opts))
 		return 1;
 
 	printf("Writing to %s... ", location->name);

@@ -247,20 +247,20 @@ static int readenv(size_t offset, u_char *buf)
 	size_t blocksize, len;
 	u_char *char_ptr;
 
-	blocksize = nand_info[0].erasesize;
+	blocksize = nand_info[0]->erasesize;
 	if (!blocksize)
 		return 1;
 
 	len = min(blocksize, (size_t)CONFIG_ENV_SIZE);
 
 	while (amount_loaded < CONFIG_ENV_SIZE && offset < end) {
-		if (nand_block_isbad(&nand_info[0], offset)) {
+		if (nand_block_isbad(nand_info[0], offset)) {
 			offset += blocksize;
 		} else {
 			char_ptr = &buf[amount_loaded];
-			if (nand_read_skip_bad(&nand_info[0], offset,
+			if (nand_read_skip_bad(nand_info[0], offset,
 					       &len, NULL,
-					       nand_info[0].size, char_ptr))
+					       nand_info[0]->size, char_ptr))
 				return 1;
 
 			offset += blocksize;

@@ -387,7 +387,7 @@ void env_relocate_spec(void)
 	ALLOC_CACHE_ALIGN_BUFFER(char, buf, CONFIG_ENV_SIZE);
 
 #if defined(CONFIG_ENV_OFFSET_OOB)
-	ret = get_nand_env_oob(&nand_info[0], &nand_env_oob_offset);
+	ret = get_nand_env_oob(nand_info[0], &nand_env_oob_offset);
 	/*
 	 * If unable to read environment offset from NAND OOB then fall through
 	 * to the normal environment reading code below

index c770eff..e55ea38 100644
@@ -62,7 +62,7 @@ static int fb_nand_lookup(const char *partname, char *response,
 		return -EINVAL;
 	}
 
-	*mtd = &nand_info[dev->id->num];
+	*mtd = nand_info[dev->id->num];
 
 	return 0;
 }

index a09dd4b..f86a78a 100644
@@ -45,9 +45,9 @@ static int splash_sf_read_raw(u32 bmp_load_addr, int offset, size_t read_size)
 #ifdef CONFIG_CMD_NAND
 static int splash_nand_read_raw(u32 bmp_load_addr, int offset, size_t read_size)
 {
-	return nand_read_skip_bad(&nand_info[nand_curr_device], offset,
+	return nand_read_skip_bad(nand_info[nand_curr_device], offset,
 				  &read_size, NULL,
-				  nand_info[nand_curr_device].size,
+				  nand_info[nand_curr_device]->size,
 				  (u_char *)bmp_load_addr);
 }
 #else

index 4652541..ab782be 100644
@@ -39,12 +39,12 @@ static int nand_block_op(enum dfu_op op, struct dfu_entity *dfu,
 
 	if (nand_curr_device < 0 ||
 	    nand_curr_device >= CONFIG_SYS_MAX_NAND_DEVICE ||
-	    !nand_info[nand_curr_device].name) {
+	    !nand_info[nand_curr_device]->name) {
 		printf("%s: invalid nand device\n", __func__);
 		return -1;
 	}
 
-	mtd = &nand_info[nand_curr_device];
+	mtd = nand_info[nand_curr_device];
 
 	if (op == DFU_OP_READ) {
 		ret = nand_read_skip_bad(mtd, start, &count, &actual,

@@ -147,12 +147,12 @@ static int dfu_flush_medium_nand(struct dfu_entity *dfu)
 
 		if (nand_curr_device < 0 ||
 		    nand_curr_device >= CONFIG_SYS_MAX_NAND_DEVICE ||
-		    !nand_info[nand_curr_device].name) {
+		    !nand_info[nand_curr_device]->name) {
 			printf("%s: invalid nand device\n", __func__);
 			return -1;
 		}
 
-		mtd = &nand_info[nand_curr_device];
+		mtd = nand_info[nand_curr_device];
 
 		memset(&opts, 0, sizeof(opts));
 		opts.offset = dfu->data.nand.start + dfu->offset +

150 lines not on this page · raw message

index 2d73a05..4015399 100644
@@ -1101,7 +1101,7 @@ static int arasan_nand_init(struct nand_chip *nand_chip, int devnum)
 	}
 
 	nand->nand_base = arasan_nand_base;
-	mtd = &nand_info[0];
+	mtd = &nand_chip->mtd;
 	nand_chip->priv = nand;
 	mtd->priv = nand_chip;
 

@@ -1134,7 +1134,7 @@ static int arasan_nand_init(struct nand_chip *nand_chip, int devnum)
 		goto fail;
 	}
 
-	if (nand_register(devnum)) {
+	if (nand_register(devnum, mtd)) {
 		printf("Nand Register Fail\n");
 		goto fail;
 	}

194 lines not on this page · raw message

index 5894fcc4..13d10ae 100644
@@ -1263,7 +1263,7 @@ static int denali_init(struct denali_nand_info *denali)
 		goto fail;
 	}
 
-	ret = nand_register(0);
+	ret = nand_register(0, denali->mtd);
 
 fail:
 	return ret;

@@ -1282,7 +1282,7 @@ static int __board_nand_init(void)
 	 * for instantiating struct nand_chip, while drivers/mtd/nand/nand.c
 	 * still provides a "struct mtd_info nand_info" instance.
 	 */
-	denali->mtd = &nand_info[0];
+	denali->mtd = &denali->nand.mtd;
 
 	/*
 	 * In the future, these base addresses should be taken from

index d457d53..523aee3 100644
@@ -656,7 +656,7 @@ static void fsl_elbc_ctrl_init(void)
 
 static int fsl_elbc_chip_init(int devnum, u8 *addr)
 {
-	struct mtd_info *mtd = &nand_info[devnum];
+	struct mtd_info *mtd;
 	struct nand_chip *nand;
 	struct fsl_elbc_mtd *priv;
 	uint32_t br = 0, or = 0;

@@ -697,6 +697,7 @@ static int fsl_elbc_chip_init(int devnum, u8 *addr)
 	}
 
 	nand = &priv->chip;
+	mtd = &nand->mtd;
 	mtd->priv = nand;
 
 	elbc_ctrl->chips[priv->bank] = priv;

@@ -787,7 +788,7 @@ static int fsl_elbc_chip_init(int devnum, u8 *addr)
 	if (ret)
 		return ret;
 
-	ret = nand_register(devnum);
+	ret = nand_register(devnum, mtd);
 	if (ret)
 		return ret;
 

index 975b0d4..d5fd3ee 100644
@@ -880,7 +880,7 @@ static int fsl_ifc_sram_init(uint32_t ver)
 
 static int fsl_ifc_chip_init(int devnum, u8 *addr)
 {
-	struct mtd_info *mtd = &nand_info[devnum];
+	struct mtd_info *mtd;
 	struct nand_chip *nand;
 	struct fsl_ifc_mtd *priv;
 	struct nand_ecclayout *layout;

@@ -925,6 +925,7 @@ static int fsl_ifc_chip_init(int devnum, u8 *addr)
 	}
 
 	nand = &priv->chip;
+	mtd = &nand->mtd;
 	mtd->priv = nand;
 
 	ifc_ctrl->chips[priv->bank] = priv;

@@ -1044,7 +1045,7 @@ static int fsl_ifc_chip_init(int devnum, u8 *addr)
 	if (ret)
 		return ret;
 
-	ret = nand_register(devnum);
+	ret = nand_register(devnum, mtd);
 	if (ret)
 		return ret;
 	return 0;

index e0e9e1e..0b8b56f 100644
@@ -409,7 +409,7 @@ int fsmc_nand_switch_ecc(uint32_t eccstrength)
 	 * Nomadik SoC is currently supporting this fsmc_nand_switch_ecc()
 	 * function, as it doesn't need to switch to a different ECC layout.
 	 */
-	mtd = &nand_info[nand_curr_device];
+	mtd = nand_info[nand_curr_device];
 	nand = mtd->priv;
 
 	/* Setup the ecc configurations again */

@@ -443,7 +443,6 @@ int fsmc_nand_init(struct nand_chip *nand)
 {
 	static int chip_nr;
 	struct mtd_info *mtd;
-	int i;
 	u32 peripid2 = readl(&fsmc_regs_p->peripid2);
 
 	fsmc_version = (peripid2 >> FSMC_REVISION_SHFT) &

@@ -480,7 +479,7 @@ int fsmc_nand_init(struct nand_chip *nand)
 		(void  __iomem *)CONFIG_SYS_NAND_BASE;
 	nand->badblockbits = 7;
 
-	mtd = &nand_info[chip_nr++];
+	mtd = &nand->mtd;
 	mtd->priv = nand;
 
 	switch (fsmc_version) {

@@ -514,9 +513,8 @@ int fsmc_nand_init(struct nand_chip *nand)
 	if (nand_scan_tail(mtd))
 		return -ENXIO;
 
-	for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; i++)
-		if (nand_register(i))
-			return -ENXIO;
+	if (nand_register(chip_nr++, mtd))
+		return -ENXIO;
 
 	return 0;
 }

index 8156fe9..236b0be 100644
@@ -539,13 +539,11 @@ static struct nand_chip lpc32xx_chip;
 
 void board_nand_init(void)
 {
-	/* we have only one device anyway */
-	struct mtd_info *mtd = &nand_info[0];
-	/* chip is struct nand_chip, and is now provided by the driver. */
-	mtd->priv = &lpc32xx_chip;
-	/* to store return status in case we need to print it */
+	struct mtd_info *mtd = &lpc32xx_chip.mtd;
 	int ret;
 
+	mtd->priv = &lpc32xx_chip;
+
 	/* Set all BOARDSPECIFIC (actually core-specific) fields  */
 
 	lpc32xx_chip.IO_ADDR_R = &lpc32xx_nand_mlc_registers->buff;

@@ -597,7 +595,7 @@ void board_nand_init(void)
 	}
 
 	/* chip is good, register it */
-	ret = nand_register(0);
+	ret = nand_register(0, mtd);
 	if (ret)
 		error("nand_register returned %i", ret);
 }

index e621c36..d836130 100644
@@ -549,7 +549,6 @@ int board_nand_init(struct nand_chip *chip)
 	int resettime = 0;
 	int retval = 0;
 	int rev;
-	static int chip_nr = 0;
 
 	/*
 	 * Check SoC revision. This driver supports only NFC

@@ -568,7 +567,7 @@ int board_nand_init(struct nand_chip *chip)
 		return -ENOMEM;
 	}
 
-	mtd = &nand_info[chip_nr++];
+	mtd = &chip->mtd;
 	mtd->priv = chip;
 	chip->priv = prv;
 

index f12b07e..5e7b9cf 100644
@@ -1164,7 +1164,7 @@ int board_nand_init(struct nand_chip *this)
 #endif
 
 	/* structures must be linked */
-	mtd = &host->mtd;
+	mtd = &this->mtd;
 	mtd->priv = this;
 	host->nand = this;
 

index 4d691d1..0b3a604 100644
@@ -8,7 +8,7 @@
 #include <nand.h>
 #include <malloc.h>
 
-static struct mtd_info mtd;
+static struct mtd_info *mtd;
 static struct nand_chip nand_chip;
 
 static void mxs_nand_command(struct mtd_info *mtd, unsigned int command,

@@ -147,14 +147,15 @@ static int mxs_nand_init(void)
 
 	/* init mxs nand driver */
 	board_nand_init(&nand_chip);
-	mtd.priv = &nand_chip;
+	mtd = &nand_chip.mtd;
+	mtd->priv = &nand_chip;
 	/* set mtd functions */
 	nand_chip.cmdfunc = mxs_nand_command;
 	nand_chip.numchips = 1;
 
 	/* identify flash device */
 	puts("NAND : ");
-	if (mxs_flash_ident(&mtd)) {
+	if (mxs_flash_ident(mtd)) {
 		printf("Failed to identify\n");
 		return -1;
 	}

@@ -162,12 +163,12 @@ static int mxs_nand_init(void)
 	/* allocate and initialize buffers */
 	nand_chip.buffers = memalign(ARCH_DMA_MINALIGN,
 				     sizeof(*nand_chip.buffers));
-	nand_chip.oob_poi = nand_chip.buffers->databuf + mtd.writesize;
+	nand_chip.oob_poi = nand_chip.buffers->databuf + mtd->writesize;
 	/* setup flash layout (does not scan as we override that) */
-	mtd.size = nand_chip.chipsize;
-	nand_chip.scan_bbt(&mtd);
+	mtd->size = nand_chip.chipsize;
+	nand_chip.scan_bbt(mtd);
 
-	printf("%llu MiB\n", (mtd.size / (1024 * 1024)));
+	printf("%llu MiB\n", (mtd->size / (1024 * 1024)));
 	return 0;
 }
 

@@ -180,20 +181,20 @@ int nand_spl_load_image(uint32_t offs, unsigned int size, void *buf)
 
 	if (mxs_nand_init())
 		return -ENODEV;
-	chip = mtd.priv;
+	chip = mtd->priv;
 	page = offs >> chip->page_shift;
-	nand_page_per_block = mtd.erasesize / mtd.writesize;
+	nand_page_per_block = mtd->erasesize / mtd->writesize;
 
 	debug("%s offset:0x%08x len:%d page:%d\n", __func__, offs, size, page);
 
-	size = roundup(size, mtd.writesize);
+	size = roundup(size, mtd->writesize);
 	while (sz < size) {
-		if (mxs_read_page_ecc(&mtd, buf, page) < 0)
+		if (mxs_read_page_ecc(mtd, buf, page) < 0)
 			return -1;
-		sz += mtd.writesize;
-		offs += mtd.writesize;
+		sz += mtd->writesize;
+		offs += mtd->writesize;
 		page++;
-		buf += mtd.writesize;
+		buf += mtd->writesize;
 
 		/*
 		 * Check if we have crossed a block boundary, and if so

@@ -204,10 +205,10 @@ int nand_spl_load_image(uint32_t offs, unsigned int size, void *buf)
 			 * Yes, new block. See if this block is good. If not,
 			 * loop until we find a good block.
 			 */
-			while (is_badblock(&mtd, offs, 1)) {
+			while (is_badblock(mtd, offs, 1)) {
 				page = page + nand_page_per_block;
 				/* Check i we've reached the end of flash. */
-				if (page >= mtd.size >> chip->page_shift)
+				if (page >= mtd->size >> chip->page_shift)
 					return -ENOMEM;
 			}
 		}

index 46f2654..ddd8249 100644
@@ -19,7 +19,7 @@ DECLARE_GLOBAL_DATA_PTR;
 int nand_curr_device = -1;
 
 
-struct mtd_info nand_info[CONFIG_SYS_MAX_NAND_DEVICE];
+struct mtd_info *nand_info[CONFIG_SYS_MAX_NAND_DEVICE];
 
 #ifndef CONFIG_SYS_NAND_SELF_INIT
 static struct nand_chip nand_chip[CONFIG_SYS_MAX_NAND_DEVICE];

@@ -30,15 +30,25 @@ static char dev_name[CONFIG_SYS_MAX_NAND_DEVICE][8];
 
 static unsigned long total_nand_size; /* in kiB */
 
-/* Register an initialized NAND mtd device with the U-Boot NAND command. */
-int nand_register(int devnum)
+int nand_mtd_to_devnum(struct mtd_info *mtd)
 {
-	struct mtd_info *mtd;
+	int i;
 
+	for (i = 0; i < ARRAY_SIZE(nand_info); i++) {
+		if (mtd && nand_info[i] == mtd)
+			return i;
+	}
+
+	return -ENODEV;
+}
+
+/* Register an initialized NAND mtd device with the U-Boot NAND command. */
+int nand_register(int devnum, struct mtd_info *mtd)
+{
 	if (devnum >= CONFIG_SYS_MAX_NAND_DEVICE)
 		return -EINVAL;
 
-	mtd = &nand_info[devnum];
+	nand_info[devnum] = mtd;
 
 	sprintf(dev_name[devnum], "nand%d", devnum);
 	mtd->name = dev_name[devnum];

@@ -62,8 +72,8 @@ int nand_register(int devnum)
 #ifndef CONFIG_SYS_NAND_SELF_INIT
 static void nand_init_chip(int i)
 {
-	struct mtd_info *mtd = &nand_info[i];
 	struct nand_chip *nand = &nand_chip[i];
+	struct mtd_info *mtd = &nand->mtd;
 	ulong base_addr = base_address[i];
 	int maxchips = CONFIG_SYS_NAND_MAX_CHIPS;
 

@@ -79,7 +89,7 @@ static void nand_init_chip(int i)
 	if (nand_scan(mtd, maxchips))
 		return;
 
-	nand_register(i);
+	nand_register(i, mtd);
 }
 #endif
 

@@ -100,6 +110,7 @@ void nand_init(void)
 	/*
 	 * Select the chip in the board/cpu specific driver
 	 */
-	board_nand_select_device(nand_info[nand_curr_device].priv, nand_curr_device);
+	board_nand_select_device(nand_info[nand_curr_device]->priv,
+				 nand_curr_device);
 #endif
 }

210 lines not on this page · raw message

index 6a45d28..f2ee90e 100644
@@ -898,12 +898,12 @@ int __maybe_unused omap_nand_switch_ecc(uint32_t hardware, uint32_t eccstrength)
 
 	if (nand_curr_device < 0 ||
 	    nand_curr_device >= CONFIG_SYS_MAX_NAND_DEVICE ||
-	    !nand_info[nand_curr_device].name) {
+	    !nand_info[nand_curr_device]->name) {
 		printf("nand: error: no NAND devices found\n");
 		return -ENODEV;
 	}
 
-	mtd = &nand_info[nand_curr_device];
+	mtd = nand_info[nand_curr_device];
 	nand = mtd->priv;
 	nand->options |= NAND_OWN_BUFFERS;
 	nand->options &= ~NAND_SUBPAGE_READ;

index d529467..125dbe7 100644
@@ -1477,9 +1477,9 @@ static int alloc_nand_resource(struct pxa3xx_nand_info *info)
 
 	info->variant = pxa3xx_nand_get_variant();
 	for (cs = 0; cs < pdata->num_cs; cs++) {
-		mtd = &nand_info[cs];
 		chip = (struct nand_chip *)
 			((u8 *)&info[1] + sizeof(*host) * cs);
+		mtd = &chip->mtd;
 		host = (struct pxa3xx_nand_host *)chip;
 		info->host[cs] = host;
 		host->mtd = mtd;

@@ -1573,8 +1573,10 @@ static int pxa3xx_nand_probe(struct pxa3xx_nand_info *info)
 			continue;
 		}
 
-		if (!ret)
-			probe_success = 1;
+		if (nand_register(cs, mtd))
+			continue;
+
+		probe_success = 1;
 	}
 
 	if (!probe_success)

@@ -1601,6 +1603,4 @@ void board_nand_init(void)
 	ret = pxa3xx_nand_probe(info);
 	if (ret)
 		return;
-
-	nand_register(0);
 }

index a77db7b..b20fb1e 100644
@@ -976,7 +976,7 @@ int tegra_nand_init(struct nand_chip *nand, int devnum)
 
 	dm_gpio_set_value(&config->wp_gpio, 1);
 
-	our_mtd = &nand_info[devnum];
+	our_mtd = &nand->mtd;
 	our_mtd->priv = nand;
 	ret = nand_scan_ident(our_mtd, CONFIG_SYS_NAND_MAX_CHIPS, NULL);
 	if (ret)

@@ -989,7 +989,7 @@ int tegra_nand_init(struct nand_chip *nand, int devnum)
 	if (ret)
 		return ret;
 
-	ret = nand_register(devnum);
+	ret = nand_register(devnum, our_mtd);
 	if (ret)
 		return ret;
 

index 1faec5e..3be8b02 100644
@@ -630,7 +630,7 @@ struct vf610_nfc_config {
 
 static int vf610_nfc_nand_init(int devnum, void __iomem *addr)
 {
-	struct mtd_info *mtd = &nand_info[devnum];
+	struct mtd_info *mtd;
 	struct nand_chip *chip;
 	struct vf610_nfc *nfc;
 	int err = 0;

@@ -653,6 +653,7 @@ static int vf610_nfc_nand_init(int devnum, void __iomem *addr)
 	chip = &nfc->chip;
 	nfc->regs = addr;
 
+	mtd = &chip->mtd;
 	mtd->priv = chip;
 	chip->priv = nfc;
 

@@ -753,7 +754,7 @@ static int vf610_nfc_nand_init(int devnum, void __iomem *addr)
 	if (err)
 		return err;
 
-	err = nand_register(devnum);
+	err = nand_register(devnum, mtd);
 	if (err)
 		return err;
 

index e2a8ed3..00cdfd4 100644
@@ -360,7 +360,7 @@ int fm_init_common(int index, struct ccsr_fman *reg)
 	size_t fw_length = CONFIG_SYS_QE_FMAN_FW_LENGTH;
 	void *addr = malloc(CONFIG_SYS_QE_FMAN_FW_LENGTH);
 
-	rc = nand_read(&nand_info[0], (loff_t)CONFIG_SYS_FMAN_FW_ADDR,
+	rc = nand_read(nand_info[0], (loff_t)CONFIG_SYS_FMAN_FW_ADDR,
 		       &fw_length, (u_char *)addr);
 	if (rc == -EUCLEAN) {
 		printf("NAND read of FMAN firmware at offset 0x%x failed %d\n",

index f975fd8..fd130d5 100644
@@ -139,8 +139,8 @@ void cs4340_upload_firmware(struct phy_device *phydev)
 	size_t fw_length = CONFIG_CORTINA_FW_LENGTH;
 
 	addr = malloc(CONFIG_CORTINA_FW_LENGTH);
-	ret = nand_read(&nand_info[0], (loff_t)CONFIG_CORTINA_FW_ADDR,
-		       &fw_length, (u_char *)addr);
+	ret = nand_read(nand_info[0], (loff_t)CONFIG_CORTINA_FW_ADDR,
+			&fw_length, (u_char *)addr);
 	if (ret == -EUCLEAN) {
 		printf("NAND read of Cortina firmware at 0x%x failed %d\n",
 		       CONFIG_CORTINA_FW_ADDR, ret);

index ba038b1..f771e94 100644
@@ -195,7 +195,7 @@ static int read_nand_cached(u32 off, u32 size, u_char *buf)
 			}
 
 			retlen = NAND_CACHE_SIZE;
-			if (nand_read(&nand_info[id->num], nand_cache_off,
+			if (nand_read(nand_info[id->num], nand_cache_off,
 						&retlen, nand_cache) != 0 ||
 					retlen != NAND_CACHE_SIZE) {
 				printf("read_nand_cached: error reading nand off %#x size %d bytes\n",

index 9b7af09..d94c48f 100644
@@ -796,7 +796,7 @@ jffs2_1pass_build_lists(struct part_info * part)
 	u32 counterN = 0;
 
 	struct mtdids *id = part->dev->id;
-	mtd = nand_info + id->num;
+	mtd = nand_info[id->num];
 
 	/* if we are building a list we need to refresh the cache. */
 	jffs_init_1pass_list(part);

index 5e99025..6d86871 100644
@@ -141,8 +141,6 @@ static const char *yaffs_error_str(void)
 	}
 }
 
-extern struct mtd_info nand_info[];
-
 void cmd_yaffs_tracemask(unsigned set, unsigned mask)
 {
 	if (set)

@@ -171,7 +169,7 @@ void cmd_yaffs_devconfig(char *_mp, int flash_dev,
 	dev = calloc(1, sizeof(*dev));
 	mp = strdup(_mp);
 
-	mtd = &nand_info[flash_dev];
+	mtd = nand_info[flash_dev];
 
 	if (!dev || !mp) {
 		/* Alloc error */

@@ -260,9 +258,7 @@ void cmd_yaffs_dev_ls(void)
 		dev = yaffs_next_dev();
 		if (!dev)
 			return;
-		flash_dev =
-			((unsigned) dev->driver_context - (unsigned) nand_info)/
-				sizeof(nand_info[0]);
+		flash_dev = nand_mtd_to_devnum(dev->driver_context);
 		printf("%-10s %5d 0x%05x 0x%05x %s",
 			dev->param.name, flash_dev,
 			dev->param.start_block, dev->param.end_block,

index 23072fd..fe8ac9d 100644
@@ -659,6 +659,7 @@ struct nand_buffers {
  */
 
 struct nand_chip {
+	struct mtd_info mtd;
 	void __iomem *IO_ADDR_R;
 	void __iomem *IO_ADDR_W;
 

index eb2d76d..a4f0f92 100644
@@ -33,15 +33,17 @@ extern void nand_init(void);
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/nand.h>
 
+int nand_mtd_to_devnum(struct mtd_info *mtd);
+
 #ifdef CONFIG_SYS_NAND_SELF_INIT
 void board_nand_init(void);
-int nand_register(int devnum);
+int nand_register(int devnum, struct mtd_info *mtd);
 #else
 extern int board_nand_init(struct nand_chip *nand);
 #endif
 
 extern int nand_curr_device;
-extern struct mtd_info nand_info[];
+extern struct mtd_info *nand_info[];
 
 static inline int nand_read(struct mtd_info *info, loff_t ofs, size_t *len,
 			    u_char *buf)

index f46936c..51ac10c 100644
@@ -16,7 +16,7 @@
  */
 static void esd405ep_nand_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	if (ctrl & NAND_CTRL_CHANGE) {
 		if ( ctrl & NAND_CLE )
 			out_be32((void *)GPIO0_OR, in_be32((void *)GPIO0_OR) | CONFIG_SYS_NAND_CLE);

index 8d88bc0..8849681 100644
@@ -24,7 +24,7 @@ DECLARE_GLOBAL_DATA_PTR;
 
 static void nand_hwcontrol(struct mtd_info *mtdinfo, int cmd, unsigned int ctrl)
 {
-	struct nand_chip *this = mtdinfo->priv;
+	struct nand_chip *this = mtd_to_nand(mtdinfo);
 	volatile u16 *nCE = (u16 *) CONFIG_SYS_LATCH_ADDR;
 
 	if (ctrl & NAND_CTRL_CHANGE) {

index 92cef2a..a96a599 100644
@@ -24,7 +24,7 @@ DECLARE_GLOBAL_DATA_PTR;
 
 static void nand_hwcontrol(struct mtd_info *mtdinfo, int cmd, unsigned int ctrl)
 {
-	struct nand_chip *this = mtdinfo->priv;
+	struct nand_chip *this = mtd_to_nand(mtdinfo);
 	volatile u16 *nCE = (u16 *) CONFIG_SYS_LATCH_ADDR;
 
 	if (ctrl & NAND_CTRL_CHANGE) {

index 15e6ea6..a67d812 100644
@@ -48,7 +48,7 @@ static void sc_nand_write_byte(struct mtd_info *mtd, u_char byte)
 static void sc_nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
 {
 	int i;
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 
 	for (i = 0; i < len; i++) {
 		out_be32(this->IO_ADDR_W,

@@ -88,7 +88,7 @@ static u16 sc_nand_read_word(struct mtd_info *mtd)
 static void sc_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
 {
 	int i;
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	int val;
 
 	val = (state & FPGA_NAND_ENABLE) | FPGA_NAND_CMD_READ;

@@ -105,7 +105,7 @@ static void sc_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
  */
 static int sc_nand_device_ready(struct mtd_info *mtdinfo)
 {
-	struct nand_chip *this = mtdinfo->priv;
+	struct nand_chip *this = mtd_to_nand(mtdinfo);
 
 	if (in_be32(this->IO_ADDR_W) & FPGA_NAND_BUSY)
 		return 0; /* busy */

index bf896fe..d1f3668 100644
@@ -16,7 +16,7 @@
  */
 static void nand_addr_hwcontrol(struct mtd_info *mtd, int cmd, uint ctrl)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	ulong IO_ADDR_W;
 
 	if (ctrl & NAND_CTRL_CHANGE) {

index f1d5a11..583a18f 100644
@@ -159,7 +159,7 @@ static void do_nand_status(struct mtd_info *mtd)
 	ulong off;
 	int last_status = -1;
 
-	struct nand_chip *nand_chip = mtd->priv;
+	struct nand_chip *nand_chip = mtd_to_nand(mtd);
 	/* check the WP bit */
 	nand_chip->cmdfunc(mtd, NAND_CMD_STATUS, -1, -1);
 	printf("device is %swrite protected\n",

@@ -285,7 +285,7 @@ usage:
 static void nand_print_and_set_info(int idx)
 {
 	struct mtd_info *mtd = nand_info[idx];
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 
 	printf("Device %d: ", idx);
 	if (chip->numchips > 1)

index 2b6fcda..04d5a80 100644
@@ -30,7 +30,7 @@ static struct nand_chip nand_chip;
 static int nand_command(int block, int page, uint32_t offs,
 	u8 cmd)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	int page_addr = page + block * CONFIG_SYS_NAND_PAGE_COUNT;
 	void (*hwctrl)(struct mtd_info *mtd, int cmd,
 			unsigned int ctrl) = this->cmd_ctrl;

@@ -100,7 +100,7 @@ static int nand_command(int block, int page, uint32_t offs,
 
 static int nand_is_bad_block(int block)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 
 	nand_command(block, 0, CONFIG_SYS_NAND_BAD_BLOCK_POS,
 		NAND_CMD_READOOB);

@@ -121,7 +121,7 @@ static int nand_is_bad_block(int block)
 
 static int nand_read_page(int block, int page, void *dst)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	u_char ecc_calc[ECCTOTAL];
 	u_char ecc_code[ECCTOTAL];
 	u_char oob_data[CONFIG_SYS_NAND_OOBSIZE];

index 4015399..ef8ae04 100644
@@ -230,7 +230,7 @@ static void arasan_nand_enable_ecc(void)
 static u8 arasan_nand_get_addrcycle(struct mtd_info *mtd)
 {
 	u8 addrcycles;
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 
 	switch (curr_cmd->addr_cycles) {
 	case NAND_ADDR_CYCL_NONE:

@@ -264,7 +264,7 @@ static u8 arasan_nand_get_addrcycle(struct mtd_info *mtd)
 
 static int arasan_nand_read_page(struct mtd_info *mtd, u8 *buf, u32 size)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	u32 reg_val, i, pktsize, pktnum;
 	u32 *bufptr = (u32 *)buf;
 	u32 timeout;

@@ -441,7 +441,7 @@ static int arasan_nand_write_page_hwecc(struct mtd_info *mtd,
 	u32 size = mtd->writesize;
 	u32 rdcount = 0;
 	u8 column_addr_cycles;
-	struct arasan_nand_info *nand = chip->priv;
+	struct arasan_nand_info *nand = nand_get_controller_data(chip);
 
 	if (chip->ecc_step_ds >= ARASAN_NAND_PKTSIZE_1K)
 		pktsize = ARASAN_NAND_PKTSIZE_1K;

@@ -944,7 +944,7 @@ static void arasan_nand_read_buf(struct mtd_info *mtd, u8 *buf, int size)
 
 static u8 arasan_nand_read_byte(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	u32 size;
 	u8 val;
 	struct nand_onfi_params *p;

@@ -976,8 +976,8 @@ static void arasan_nand_cmd_function(struct mtd_info *mtd, unsigned int command,
 				     int column, int page_addr)
 {
 	u32 i, ret = 0;
-	struct nand_chip *chip = mtd->priv;
-	struct arasan_nand_info *nand = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct arasan_nand_info *nand = nand_get_controller_data(chip);
 
 	curr_cmd = NULL;
 	writel(ARASAN_NAND_INT_STS_XFR_CMPLT_MASK,

@@ -1033,7 +1033,7 @@ static int arasan_nand_ecc_init(struct mtd_info *mtd)
 {
 	int found = -1;
 	u32 regval, eccpos_start, i;
-	struct nand_chip *nand_chip = mtd->priv;
+	struct nand_chip *nand_chip = mtd_to_nand(mtd);
 
 	nand_chip->ecc.mode = NAND_ECC_HW;
 	nand_chip->ecc.hwctl = NULL;

@@ -1101,9 +1101,8 @@ static int arasan_nand_init(struct nand_chip *nand_chip, int devnum)
 	}
 
 	nand->nand_base = arasan_nand_base;
-	mtd = &nand_chip->mtd;
-	nand_chip->priv = nand;
-	mtd->priv = nand_chip;
+	mtd = nand_to_mtd(nand_chip);
+	nand_set_controller_data(nand_chip, nand);
 
 	/* Set the driver entry points for MTD */
 	nand_chip->cmdfunc = arasan_nand_cmd_function;

176 lines not on this page · raw message

index a397074..5e0c7bf 100644
@@ -54,7 +54,7 @@
  */
 static void nand_davinci_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	const u32 *nand = chip->IO_ADDR_R;
 
 	/* Make sure that buf is 32 bit aligned */

@@ -99,7 +99,7 @@ static void nand_davinci_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 static void nand_davinci_write_buf(struct mtd_info *mtd, const uint8_t *buf,
 				   int len)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	const u32 *nand = chip->IO_ADDR_W;
 
 	/* Make sure that buf is 32 bit aligned */

@@ -144,7 +144,7 @@ static void nand_davinci_write_buf(struct mtd_info *mtd, const uint8_t *buf,
 static void nand_davinci_hwcontrol(struct mtd_info *mtd, int cmd,
 		unsigned int ctrl)
 {
-	struct		nand_chip *this = mtd->priv;
+	struct		nand_chip *this = mtd_to_nand(mtd);
 	u_int32_t	IO_ADDR_W = (u_int32_t)this->IO_ADDR_W;
 
 	if (ctrl & NAND_CTRL_CHANGE) {

@@ -223,7 +223,7 @@ static int nand_davinci_calculate_ecc(struct mtd_info *mtd, const u_char *dat,
 static int nand_davinci_correct_data(struct mtd_info *mtd, u_char *dat,
 		u_char *read_ecc, u_char *calc_ecc)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	u_int32_t ecc_nand = read_ecc[0] | (read_ecc[1] << 8) |
 					  (read_ecc[2] << 16);
 	u_int32_t ecc_calc = calc_ecc[0] | (calc_ecc[1] << 8) |

index 13d10ae..d9bcd72 100644
@@ -48,7 +48,8 @@ static int onfi_timing_mode = NAND_DEFAULT_TIMINGS;
  * this macro allows us to convert from an MTD structure to our own
  * device context (denali) structure.
  */
-#define mtd_to_denali(m) container_of(m->priv, struct denali_nand_info, nand)
+#define mtd_to_denali(m) \
+	container_of(mtd_to_nand(m), struct denali_nand_info, nand)
 
 /*
  * These constants are defined by the driver to enable common driver

@@ -1179,7 +1180,6 @@ static int denali_init(struct denali_nand_info *denali)
 
 	denali->mtd->name = "denali-nand";
 	denali->mtd->owner = THIS_MODULE;
-	denali->mtd->priv = &denali->nand;
 
 	/* register the driver with the NAND core subsystem */
 	denali->nand.select_chip = denali_select_chip;

index 523aee3..aafff67 100644
@@ -154,8 +154,8 @@ static struct nand_bbt_descr bbt_mirror_descr = {
  */
 static void set_addr(struct mtd_info *mtd, int column, int page_addr, int oob)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct fsl_elbc_mtd *priv = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct fsl_elbc_mtd *priv = nand_get_controller_data(chip);
 	struct fsl_elbc_ctrl *ctrl = priv->ctrl;
 	fsl_lbc_t *lbc = ctrl->regs;
 	int buf_num;

@@ -194,8 +194,8 @@ static void set_addr(struct mtd_info *mtd, int column, int page_addr, int oob)
  */
 static int fsl_elbc_run_command(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct fsl_elbc_mtd *priv = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct fsl_elbc_mtd *priv = nand_get_controller_data(chip);
 	struct fsl_elbc_ctrl *ctrl = priv->ctrl;
 	fsl_lbc_t *lbc = ctrl->regs;
 	u32 timeo = (CONFIG_SYS_HZ * 10) / 1000;

@@ -246,7 +246,7 @@ static int fsl_elbc_run_command(struct mtd_info *mtd)
 
 static void fsl_elbc_do_read(struct nand_chip *chip, int oob)
 {
-	struct fsl_elbc_mtd *priv = chip->priv;
+	struct fsl_elbc_mtd *priv = nand_get_controller_data(chip);
 	struct fsl_elbc_ctrl *ctrl = priv->ctrl;
 	fsl_lbc_t *lbc = ctrl->regs;
 

@@ -279,8 +279,8 @@ static void fsl_elbc_do_read(struct nand_chip *chip, int oob)
 static void fsl_elbc_cmdfunc(struct mtd_info *mtd, unsigned int command,
 			     int column, int page_addr)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct fsl_elbc_mtd *priv = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct fsl_elbc_mtd *priv = nand_get_controller_data(chip);
 	struct fsl_elbc_ctrl *ctrl = priv->ctrl;
 	fsl_lbc_t *lbc = ctrl->regs;
 

@@ -489,8 +489,8 @@ static void fsl_elbc_select_chip(struct mtd_info *mtd, int chip)
  */
 static void fsl_elbc_write_buf(struct mtd_info *mtd, const u8 *buf, int len)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct fsl_elbc_mtd *priv = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct fsl_elbc_mtd *priv = nand_get_controller_data(chip);
 	struct fsl_elbc_ctrl *ctrl = priv->ctrl;
 	unsigned int bufsize = mtd->writesize + mtd->oobsize;
 

@@ -526,8 +526,8 @@ static void fsl_elbc_write_buf(struct mtd_info *mtd, const u8 *buf, int len)
  */
 static u8 fsl_elbc_read_byte(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct fsl_elbc_mtd *priv = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct fsl_elbc_mtd *priv = nand_get_controller_data(chip);
 	struct fsl_elbc_ctrl *ctrl = priv->ctrl;
 
 	/* If there are still bytes in the FCM, then use the next byte. */

@@ -543,8 +543,8 @@ static u8 fsl_elbc_read_byte(struct mtd_info *mtd)
  */
 static void fsl_elbc_read_buf(struct mtd_info *mtd, u8 *buf, int len)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct fsl_elbc_mtd *priv = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct fsl_elbc_mtd *priv = nand_get_controller_data(chip);
 	struct fsl_elbc_ctrl *ctrl = priv->ctrl;
 	int avail;
 

@@ -566,7 +566,7 @@ static void fsl_elbc_read_buf(struct mtd_info *mtd, u8 *buf, int len)
  */
 static int fsl_elbc_wait(struct mtd_info *mtd, struct nand_chip *chip)
 {
-	struct fsl_elbc_mtd *priv = chip->priv;
+	struct fsl_elbc_mtd *priv = nand_get_controller_data(chip);
 	struct fsl_elbc_ctrl *ctrl = priv->ctrl;
 	fsl_lbc_t *lbc = ctrl->regs;
 

@@ -697,8 +697,7 @@ static int fsl_elbc_chip_init(int devnum, u8 *addr)
 	}
 
 	nand = &priv->chip;
-	mtd = &nand->mtd;
-	mtd->priv = nand;
+	mtd = nand_to_mtd(nand);
 
 	elbc_ctrl->chips[priv->bank] = priv;
 

@@ -720,7 +719,7 @@ static int fsl_elbc_chip_init(int devnum, u8 *addr)
 	nand->bbt_options = NAND_BBT_USE_FLASH;
 
 	nand->controller = &elbc_ctrl->controller;
-	nand->priv = priv;
+	nand_set_controller_data(nand, priv);
 
 	nand->ecc.read_page = fsl_elbc_read_page;
 	nand->ecc.write_page = fsl_elbc_write_page;

121 lines not on this page · raw message

index 5426c32..d2b3881 100644
@@ -64,8 +64,8 @@ static void fun_wait(struct fsl_upm_nand *fun)
 #if CONFIG_SYS_NAND_MAX_CHIPS > 1
 static void fun_select_chip(struct mtd_info *mtd, int chip_nr)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct fsl_upm_nand *fun = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct fsl_upm_nand *fun = nand_get_controller_data(chip);
 
 	if (chip_nr >= 0) {
 		fun->chip_nr = chip_nr;

@@ -79,8 +79,8 @@ static void fun_select_chip(struct mtd_info *mtd, int chip_nr)
 
 static void fun_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct fsl_upm_nand *fun = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct fsl_upm_nand *fun = nand_get_controller_data(chip);
 	void __iomem *io_addr;
 	u32 mar;
 

@@ -123,7 +123,7 @@ static void fun_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
 
 static u8 upm_nand_read_byte(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 
 	return in_8(chip->IO_ADDR_R);
 }

@@ -131,8 +131,8 @@ static u8 upm_nand_read_byte(struct mtd_info *mtd)
 static void upm_nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
 {
 	int i;
-	struct nand_chip *chip = mtd->priv;
-	struct fsl_upm_nand *fun = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct fsl_upm_nand *fun = nand_get_controller_data(chip);
 
 	for (i = 0; i < len; i++) {
 		out_8(chip->IO_ADDR_W, buf[i]);

@@ -147,7 +147,7 @@ static void upm_nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
 static void upm_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
 {
 	int i;
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 
 	for (i = 0; i < len; i++)
 		buf[i] = in_8(chip->IO_ADDR_R);

@@ -155,8 +155,8 @@ static void upm_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
 
 static int nand_dev_ready(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct fsl_upm_nand *fun = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct fsl_upm_nand *fun = nand_get_controller_data(chip);
 
 	return fun->dev_ready(fun->chip_nr);
 }

@@ -168,7 +168,7 @@ int fsl_upm_nand_init(struct nand_chip *chip, struct fsl_upm_nand *fun)
 
 	fun->last_ctrl = NAND_CLE;
 
-	chip->priv = fun;
+	nand_set_controller_data(chip, fun);
 	chip->chip_delay = fun->chip_delay;
 	chip->ecc.mode = NAND_ECC_SOFT;
 	chip->cmd_ctrl = fun_cmd_ctrl;

index 0b8b56f..a1f2cba 100644
@@ -165,7 +165,7 @@ static int count_written_bits(uint8_t *buff, int size, int max_bits)
 
 static void fsmc_nand_hwcontrol(struct mtd_info *mtd, int cmd, uint ctrl)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	ulong IO_ADDR_W;
 
 	if (ctrl & NAND_CTRL_CHANGE) {

@@ -410,7 +410,7 @@ int fsmc_nand_switch_ecc(uint32_t eccstrength)
 	 * function, as it doesn't need to switch to a different ECC layout.
 	 */
 	mtd = nand_info[nand_curr_device];
-	nand = mtd->priv;
+	nand = mtd_to_nand(mtd);
 
 	/* Setup the ecc configurations again */
 	if (eccstrength == 1) {

@@ -479,8 +479,7 @@ int fsmc_nand_init(struct nand_chip *nand)
 		(void  __iomem *)CONFIG_SYS_NAND_BASE;
 	nand->badblockbits = 7;
 
-	mtd = &nand->mtd;
-	mtd->priv = nand;
+	mtd = nand_to_mtd(nand);
 
 	switch (fsmc_version) {
 	case FSMC_VER8:

index 22c5625..e978cf8 100644
@@ -35,7 +35,7 @@
  */
 static void kb9202_nand_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 
 	if (ctrl & NAND_CTRL_CHANGE) {
 		ulong IO_ADDR_W = (ulong) this->IO_ADDR_W;

index d734113..d0a68bd 100644
@@ -33,7 +33,7 @@ static u32 nand_mpp_backup[9] = { 0 };
 static void kw_nand_hwcontrol(struct mtd_info *mtd, int cmd,
 			      unsigned int ctrl)
 {
-	struct nand_chip *nc = mtd->priv;
+	struct nand_chip *nc = mtd_to_nand(mtd);
 	u32 offs;
 
 	if (cmd == NAND_CMD_NONE)

index 236b0be..9475208 100644
@@ -542,8 +542,6 @@ void board_nand_init(void)
 	struct mtd_info *mtd = &lpc32xx_chip.mtd;
 	int ret;
 
-	mtd->priv = &lpc32xx_chip;
-
 	/* Set all BOARDSPECIFIC (actually core-specific) fields  */
 
 	lpc32xx_chip.IO_ADDR_R = &lpc32xx_nand_mlc_registers->buff;

index 4e1be36..89b48cb 100644
@@ -291,7 +291,7 @@ static void lpc32xx_nand_dma_configure(struct nand_chip *chip,
 static void lpc32xx_nand_xfer(struct mtd_info *mtd, const u8 *buf,
 			      int len, int read)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	u32 config;
 	int ret;
 

index d836130..362d393 100644
@@ -117,8 +117,8 @@ static void mpc5121_nfc_done(struct mtd_info *mtd);
 /* Read NFC register */
 static inline u16 nfc_read(struct mtd_info *mtd, uint reg)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct mpc5121_nfc_prv *prv = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct mpc5121_nfc_prv *prv = nand_get_controller_data(chip);
 
 	return in_be16(prv->regs + reg);
 }

@@ -126,8 +126,8 @@ static inline u16 nfc_read(struct mtd_info *mtd, uint reg)
 /* Write NFC register */
 static inline void nfc_write(struct mtd_info *mtd, uint reg, u16 val)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct mpc5121_nfc_prv *prv = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct mpc5121_nfc_prv *prv = nand_get_controller_data(chip);
 
 	out_be16(prv->regs + reg, val);
 }

@@ -211,7 +211,7 @@ static void mpc5121_nfc_done(struct mtd_info *mtd)
 /* Do address cycle(s) */
 static void mpc5121_nfc_addr_cycle(struct mtd_info *mtd, int column, int page)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	u32 pagemask = chip->pagemask;
 
 	if (column != -1) {

@@ -283,8 +283,8 @@ static int mpc5121_nfc_dev_ready(struct mtd_info *mtd)
 static void mpc5121_nfc_command(struct mtd_info *mtd, unsigned command,
 				int column, int page)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct mpc5121_nfc_prv *prv = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct mpc5121_nfc_prv *prv = nand_get_controller_data(chip);
 
 	prv->column = (column >= 0) ? column : 0;
 	prv->spareonly = 0;

@@ -357,8 +357,8 @@ static void mpc5121_nfc_command(struct mtd_info *mtd, unsigned command,
 static void mpc5121_nfc_copy_spare(struct mtd_info *mtd, uint offset,
 				   u8 * buffer, uint size, int wr)
 {
-	struct nand_chip *nand = mtd->priv;
-	struct mpc5121_nfc_prv *prv = nand->priv;
+	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct mpc5121_nfc_prv *prv = nand_get_controller_data(nand);
 	uint o, s, sbsize, blksize;
 
 	/*

@@ -410,8 +410,8 @@ static void mpc5121_nfc_copy_spare(struct mtd_info *mtd, uint offset,
 static void mpc5121_nfc_buf_copy(struct mtd_info *mtd, u_char * buf, int len,
 				 int wr)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct mpc5121_nfc_prv *prv = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct mpc5121_nfc_prv *prv = nand_get_controller_data(chip);
 	uint c = prv->column;
 	uint l;
 

@@ -489,7 +489,7 @@ static u16 mpc5121_nfc_read_word(struct mtd_info *mtd)
 static int mpc5121_nfc_read_hw_config(struct mtd_info *mtd)
 {
 	immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	uint rcw_pagesize = 0;
 	uint rcw_sparesize = 0;
 	uint rcw_width;

@@ -568,8 +568,7 @@ int board_nand_init(struct nand_chip *chip)
 	}
 
 	mtd = &chip->mtd;
-	mtd->priv = chip;
-	chip->priv = prv;
+	nand_set_controller_data(chip, prv);
 
 	/* Read NFC configuration from Reset Config Word */
 	retval = mpc5121_nfc_read_hw_config(mtd);

152 lines not on this page · raw message

130 lines not on this page · raw message

index 0b3a604..a8a3084 100644
@@ -14,7 +14,7 @@ static struct nand_chip nand_chip;
 static void mxs_nand_command(struct mtd_info *mtd, unsigned int command,
 			     int column, int page_addr)
 {
-	register struct nand_chip *chip = mtd->priv;
+	register struct nand_chip *chip = mtd_to_nand(mtd);
 	u32 timeo, time_start;
 
 	/* write out the command to the device */

@@ -51,7 +51,7 @@ static void mxs_nand_command(struct mtd_info *mtd, unsigned int command,
 
 static int mxs_flash_ident(struct mtd_info *mtd)
 {
-	register struct nand_chip *chip = mtd->priv;
+	register struct nand_chip *chip = mtd_to_nand(mtd);
 	int i;
 	u8 mfg_id, dev_id;
 	u8 id_data[8];

@@ -111,7 +111,7 @@ static int mxs_flash_ident(struct mtd_info *mtd)
 
 static int mxs_read_page_ecc(struct mtd_info *mtd, void *buf, unsigned int page)
 {
-	register struct nand_chip *chip = mtd->priv;
+	register struct nand_chip *chip = mtd_to_nand(mtd);
 	int ret;
 
 	chip->cmdfunc(mtd, NAND_CMD_READ0, 0x0, page);

@@ -125,7 +125,7 @@ static int mxs_read_page_ecc(struct mtd_info *mtd, void *buf, unsigned int page)
 
 static int is_badblock(struct mtd_info *mtd, loff_t offs, int allowbbt)
 {
-	register struct nand_chip *chip = mtd->priv;
+	register struct nand_chip *chip = mtd_to_nand(mtd);
 	unsigned int block = offs >> chip->phys_erase_shift;
 	unsigned int page = offs >> chip->page_shift;
 

@@ -148,7 +148,6 @@ static int mxs_nand_init(void)
 	/* init mxs nand driver */
 	board_nand_init(&nand_chip);
 	mtd = &nand_chip.mtd;
-	mtd->priv = &nand_chip;
 	/* set mtd functions */
 	nand_chip.cmdfunc = mxs_nand_command;
 	nand_chip.numchips = 1;

@@ -181,7 +180,7 @@ int nand_spl_load_image(uint32_t offs, unsigned int size, void *buf)
 
 	if (mxs_nand_init())
 		return -ENODEV;
-	chip = mtd->priv;
+	chip = mtd_to_nand(mtd);
 	page = offs >> chip->page_shift;
 	nand_page_per_block = mtd->erasesize / mtd->writesize;
 

index ddd8249..f449316 100644
@@ -73,14 +73,13 @@ int nand_register(int devnum, struct mtd_info *mtd)
 static void nand_init_chip(int i)
 {
 	struct nand_chip *nand = &nand_chip[i];
-	struct mtd_info *mtd = &nand->mtd;
+	struct mtd_info *mtd = nand_to_mtd(nand);
 	ulong base_addr = base_address[i];
 	int maxchips = CONFIG_SYS_NAND_MAX_CHIPS;
 
 	if (maxchips < 1)
 		maxchips = 1;
 
-	mtd->priv = nand;
 	nand->IO_ADDR_R = nand->IO_ADDR_W = (void  __iomem *)base_addr;
 
 	if (board_nand_init(nand))

@@ -110,7 +109,7 @@ void nand_init(void)
 	/*
 	 * Select the chip in the board/cpu specific driver
 	 */
-	board_nand_select_device(nand_info[nand_curr_device]->priv,
+	board_nand_select_device(mtd_to_nand(nand_info[nand_curr_device]),
 				 nand_curr_device);
 #endif
 }

288 lines not on this page · raw message

index 00f28a4..152f3bc 100644
@@ -173,7 +173,7 @@ static int read_bbt(struct mtd_info *mtd, uint8_t *buf, int page, int num,
 		struct nand_bbt_descr *td, int offs)
 {
 	int res, ret = 0, i, j, act = 0;
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	size_t retlen, len, totlen;
 	loff_t from;
 	int bits = td->options & NAND_BBT_NRBITS_MSK;

@@ -264,7 +264,7 @@ static int read_bbt(struct mtd_info *mtd, uint8_t *buf, int page, int num,
  */
 static int read_abs_bbt(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *td, int chip)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	int res = 0, i;
 
 	if (td->options & NAND_BBT_PERCHIP) {

@@ -389,7 +389,7 @@ static u32 bbt_get_ver_offs(struct mtd_info *mtd, struct nand_bbt_descr *td)
 static void read_abs_bbts(struct mtd_info *mtd, uint8_t *buf,
 			  struct nand_bbt_descr *td, struct nand_bbt_descr *md)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 
 	/* Read the primary version, if available */
 	if (td->options & NAND_BBT_VERSION) {

@@ -455,7 +455,7 @@ static int scan_block_fast(struct mtd_info *mtd, struct nand_bbt_descr *bd,
 static int create_bbt(struct mtd_info *mtd, uint8_t *buf,
 	struct nand_bbt_descr *bd, int chip)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	int i, numblocks, numpages;
 	int startblock;
 	loff_t from;

@@ -524,7 +524,7 @@ static int create_bbt(struct mtd_info *mtd, uint8_t *buf,
  */
 static int search_bbt(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *td)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	int i, chips;
 	int startblock, block, dir;
 	int scanlen = mtd->writesize + mtd->oobsize;

@@ -619,7 +619,7 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf,
 		     struct nand_bbt_descr *td, struct nand_bbt_descr *md,
 		     int chipsel)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	struct erase_info einfo;
 	int i, res, chip = 0;
 	int bits, startblock, dir, page, offs, numblocks, sft, sftmsk;

@@ -820,7 +820,7 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf,
  */
 static inline int nand_memory_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 
 	return create_bbt(mtd, this->buffers->databuf, bd, -1);
 }

@@ -839,7 +839,7 @@ static inline int nand_memory_bbt(struct mtd_info *mtd, struct nand_bbt_descr *b
 static int check_create(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *bd)
 {
 	int i, chips, writeops, create, chipsel, res, res2;
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	struct nand_bbt_descr *td = this->bbt_td;
 	struct nand_bbt_descr *md = this->bbt_md;
 	struct nand_bbt_descr *rd, *rd2;

@@ -963,7 +963,7 @@ static int check_create(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_desc
  */
 static void mark_bbt_region(struct mtd_info *mtd, struct nand_bbt_descr *td)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	int i, j, chips, block, nrblocks, update;
 	uint8_t oldval;
 

@@ -1023,7 +1023,7 @@ static void mark_bbt_region(struct mtd_info *mtd, struct nand_bbt_descr *td)
  */
 static void verify_bbt_descr(struct mtd_info *mtd, struct nand_bbt_descr *bd)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	u32 pattern_len;
 	u32 bits;
 	u32 table_size;

@@ -1075,7 +1075,7 @@ static void verify_bbt_descr(struct mtd_info *mtd, struct nand_bbt_descr *bd)
  */
 int nand_scan_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	int len, res = 0;
 	uint8_t *buf;
 	struct nand_bbt_descr *td = this->bbt_td;

@@ -1143,7 +1143,7 @@ int nand_scan_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd)
  */
 static int nand_update_bbt(struct mtd_info *mtd, loff_t offs)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	int len, res = 0;
 	int chip, chipsel;
 	uint8_t *buf;

@@ -1277,7 +1277,7 @@ static int nand_create_badblock_pattern(struct nand_chip *this)
  */
 int nand_default_bbt(struct mtd_info *mtd)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	int ret;
 
 	/* Is a flash based bad block table requested? */

@@ -1313,7 +1313,7 @@ int nand_default_bbt(struct mtd_info *mtd)
  */
 int nand_isreserved_bbt(struct mtd_info *mtd, loff_t offs)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	int block;
 
 	block = (int)(offs >> this->bbt_erase_shift);

@@ -1328,7 +1328,7 @@ int nand_isreserved_bbt(struct mtd_info *mtd, loff_t offs)
  */
 int nand_isbad_bbt(struct mtd_info *mtd, loff_t offs, int allowbbt)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	int block, res;
 
 	block = (int)(offs >> this->bbt_erase_shift);

@@ -1355,7 +1355,7 @@ int nand_isbad_bbt(struct mtd_info *mtd, loff_t offs, int allowbbt)
  */
 int nand_markbad_bbt(struct mtd_info *mtd, loff_t offs)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	int block, ret = 0;
 
 	block = (int)(offs >> this->bbt_erase_shift);

index 35d2140..d7f6ce0 100644
@@ -41,7 +41,7 @@ struct nand_bch_control {
 int nand_bch_calculate_ecc(struct mtd_info *mtd, const unsigned char *buf,
 			   unsigned char *code)
 {
-	const struct nand_chip *chip = mtd->priv;
+	const struct nand_chip *chip = mtd_to_nand(mtd);
 	struct nand_bch_control *nbc = chip->ecc.priv;
 	unsigned int i;
 

@@ -67,7 +67,7 @@ int nand_bch_calculate_ecc(struct mtd_info *mtd, const unsigned char *buf,
 int nand_bch_correct_data(struct mtd_info *mtd, unsigned char *buf,
 			  unsigned char *read_ecc, unsigned char *calc_ecc)
 {
-	const struct nand_chip *chip = mtd->priv;
+	const struct nand_chip *chip = mtd_to_nand(mtd);
 	struct nand_bch_control *nbc = chip->ecc.priv;
 	unsigned int *errloc = nbc->errloc;
 	int i, count;

index 37a0206..335c3e3 100644
@@ -25,7 +25,7 @@
 
 static void plat_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 
 	if (cmd == NAND_CMD_NONE)
 		return;

@@ -39,7 +39,7 @@ static void plat_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
 #ifdef NAND_PLAT_DEV_READY
 static int plat_dev_ready(struct mtd_info *mtd)
 {
-	return NAND_PLAT_DEV_READY((struct nand_chip *)mtd->priv);
+	return NAND_PLAT_DEV_READY((struct nand_chip *)mtd_to_nand(mtd));
 }
 #else
 # define plat_dev_ready NULL

index bc6a09a..b023e00 100644
@@ -26,7 +26,7 @@ static struct nand_chip nand_chip;
 static int nand_command(int block, int page, uint32_t offs,
 	u8 cmd)
 {
-	struct nand_chip *this = mtd->priv();
+	struct nand_chip *this = mtd_to_nand(mtd);
 	int page_addr = page + block * CONFIG_SYS_NAND_PAGE_COUNT;
 
 	while (!this->dev_ready(mtd))

@@ -63,7 +63,7 @@ static int nand_command(int block, int page, uint32_t offs,
 static int nand_command(int block, int page, uint32_t offs,
 	u8 cmd)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	int page_addr = page + block * CONFIG_SYS_NAND_PAGE_COUNT;
 	void (*hwctrl)(struct mtd_info *mtd, int cmd,
 			unsigned int ctrl) = this->cmd_ctrl;

@@ -114,7 +114,7 @@ static int nand_command(int block, int page, uint32_t offs,
 
 static int nand_is_bad_block(int block)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	u_char bb_data[2];
 
 	nand_command(block, 0, CONFIG_SYS_NAND_BAD_BLOCK_POS,

@@ -139,7 +139,7 @@ static int nand_is_bad_block(int block)
 #if defined(CONFIG_SYS_NAND_HW_ECC_OOBFIRST)
 static int nand_read_page(int block, int page, uchar *dst)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	u_char ecc_calc[ECCTOTAL];
 	u_char ecc_code[ECCTOTAL];
 	u_char oob_data[CONFIG_SYS_NAND_OOBSIZE];

@@ -170,7 +170,7 @@ static int nand_read_page(int block, int page, uchar *dst)
 #else
 static int nand_read_page(int block, int page, void *dst)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	u_char ecc_calc[ECCTOTAL];
 	u_char ecc_code[ECCTOTAL];
 	u_char oob_data[CONFIG_SYS_NAND_OOBSIZE];

@@ -250,7 +250,6 @@ void nand_init(void)
 	 * Init board specific nand support
 	 */
 	mtd = &nand_chip.mtd;
-	mtd->priv = &nand_chip;
 	nand_chip.IO_ADDR_R = nand_chip.IO_ADDR_W =
 		(void  __iomem *)CONFIG_SYS_NAND_BASE;
 	board_nand_init(&nand_chip);

index 90bf798..9b61087 100644
@@ -59,7 +59,7 @@ int nand_erase_opts(struct mtd_info *mtd,
 	int percent_complete = -1;
 	const char *mtd_device = mtd->name;
 	struct mtd_oob_ops oob_opts;
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 
 	if ((opts->offset & (mtd->erasesize - 1)) != 0) {
 		printf("Attempt to erase non block-aligned data\n");

@@ -217,7 +217,7 @@ int nand_lock(struct mtd_info *mtd, int tight)
 {
 	int ret = 0;
 	int status;
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 
 	/* select the NAND device */
 	chip->select_chip(mtd, 0);

@@ -267,7 +267,7 @@ int nand_get_lock_status(struct mtd_info *mtd, loff_t offset)
 	int ret = 0;
 	int chipnr;
 	int page;
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 
 	/* select the NAND device */
 	chipnr = (int)(offset >> chip->chip_shift);

@@ -314,7 +314,7 @@ int nand_unlock(struct mtd_info *mtd, loff_t start, size_t length,
 	int chipnr;
 	int status;
 	int page;
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 
 	debug("nand_unlock%s: start: %08llx, length: %zd!\n",
 		allexcept ? " (allexcept)" : "", start, length);

index 8a68cb0..ee353c7 100644
@@ -37,7 +37,7 @@ static int ndfc_cs[NDFC_MAX_BANKS];
 
 static void ndfc_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
 {
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 	ulong base = (ulong) this->IO_ADDR_W & 0xffffff00;
 
 	if (cmd == NAND_CMD_NONE)

@@ -51,7 +51,7 @@ static void ndfc_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
 
 static int ndfc_dev_ready(struct mtd_info *mtdinfo)
 {
-	struct nand_chip *this = mtdinfo->priv;
+	struct nand_chip *this = mtd_to_nand(mtdinfo);
 	ulong base = (ulong) this->IO_ADDR_W & 0xffffff00;
 
 	return (in_be32((u32 *)(base + NDFC_STAT)) & NDFC_STAT_IS_READY);

@@ -59,7 +59,7 @@ static int ndfc_dev_ready(struct mtd_info *mtdinfo)
 
 static void ndfc_enable_hwecc(struct mtd_info *mtdinfo, int mode)
 {
-	struct nand_chip *this = mtdinfo->priv;
+	struct nand_chip *this = mtd_to_nand(mtdinfo);
 	ulong base = (ulong) this->IO_ADDR_W & 0xffffff00;
 	u32 ccr;
 

@@ -71,7 +71,7 @@ static void ndfc_enable_hwecc(struct mtd_info *mtdinfo, int mode)
 static int ndfc_calculate_ecc(struct mtd_info *mtdinfo,
 			      const u_char *dat, u_char *ecc_code)
 {
-	struct nand_chip *this = mtdinfo->priv;
+	struct nand_chip *this = mtd_to_nand(mtdinfo);
 	ulong base = (ulong) this->IO_ADDR_W & 0xffffff00;
 	u32 ecc;
 	u8 *p = (u8 *)&ecc;

@@ -96,7 +96,7 @@ static int ndfc_calculate_ecc(struct mtd_info *mtdinfo,
  */
 static void ndfc_read_buf(struct mtd_info *mtdinfo, uint8_t *buf, int len)
 {
-	struct nand_chip *this = mtdinfo->priv;
+	struct nand_chip *this = mtd_to_nand(mtdinfo);
 	ulong base = (ulong) this->IO_ADDR_W & 0xffffff00;
 	uint32_t *p = (uint32_t *) buf;
 

@@ -110,7 +110,7 @@ static void ndfc_read_buf(struct mtd_info *mtdinfo, uint8_t *buf, int len)
  */
 static void ndfc_write_buf(struct mtd_info *mtdinfo, const uint8_t *buf, int len)
 {
-	struct nand_chip *this = mtdinfo->priv;
+	struct nand_chip *this = mtd_to_nand(mtdinfo);
 	ulong base = (ulong) this->IO_ADDR_W & 0xffffff00;
 	uint32_t *p = (uint32_t *) buf;
 

@@ -124,7 +124,7 @@ static void ndfc_write_buf(struct mtd_info *mtdinfo, const uint8_t *buf, int len
 static uint8_t ndfc_read_byte(struct mtd_info *mtd)
 {
 
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 
 #ifdef CONFIG_SYS_NAND_BUSWIDTH_16BIT
 	return (uint8_t) readw(chip->IO_ADDR_R);

index f2ee90e..cac9eea 100644
@@ -58,8 +58,8 @@ static struct omap_nand_info omap_nand_info[GPMC_MAX_CS];
 static void omap_nand_hwcontrol(struct mtd_info *mtd, int32_t cmd,
 				uint32_t ctrl)
 {
-	register struct nand_chip *this = mtd->priv;
-	struct omap_nand_info *info = this->priv;
+	register struct nand_chip *this = mtd_to_nand(mtd);
+	struct omap_nand_info *info = nand_get_controller_data(this);
 	int cs = info->cs;
 
 	/*

@@ -85,8 +85,8 @@ static void omap_nand_hwcontrol(struct mtd_info *mtd, int32_t cmd,
 /* Check wait pin as dev ready indicator */
 static int omap_dev_ready(struct mtd_info *mtd)
 {
-	register struct nand_chip *this = mtd->priv;
-	struct omap_nand_info *info = this->priv;
+	register struct nand_chip *this = mtd_to_nand(mtd);
+	struct omap_nand_info *info = nand_get_controller_data(this);
 	return gpmc_cfg->status & (1 << (8 + info->ws));
 }
 

@@ -177,8 +177,8 @@ static int __maybe_unused omap_correct_data(struct mtd_info *mtd, uint8_t *dat,
 __maybe_unused
 static void omap_enable_hwecc(struct mtd_info *mtd, int32_t mode)
 {
-	struct nand_chip	*nand	= mtd->priv;
-	struct omap_nand_info	*info	= nand->priv;
+	struct nand_chip	*nand	= mtd_to_nand(mtd);
+	struct omap_nand_info	*info	= nand_get_controller_data(nand);
 	unsigned int dev_width = (nand->options & NAND_BUSWIDTH_16) ? 1 : 0;
 	unsigned int ecc_algo = 0;
 	unsigned int bch_type = 0;

@@ -262,8 +262,8 @@ static void omap_enable_hwecc(struct mtd_info *mtd, int32_t mode)
 static int omap_calculate_ecc(struct mtd_info *mtd, const uint8_t *dat,
 				uint8_t *ecc_code)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct omap_nand_info *info = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct omap_nand_info *info = nand_get_controller_data(chip);
 	uint32_t *ptr, val = 0;
 	int8_t i = 0, j;
 

@@ -392,7 +392,7 @@ static int __read_prefetch_aligned(struct nand_chip *chip, uint32_t *buf, int le
 {
 	int ret;
 	uint32_t cnt;
-	struct omap_nand_info *info = chip->priv;
+	struct omap_nand_info *info = nand_get_controller_data(chip);
 
 	ret = omap_prefetch_enable(PREFETCH_FIFOTHRESHOLD_MAX, len, 0, info->cs);
 	if (ret < 0)

@@ -417,7 +417,7 @@ static int __read_prefetch_aligned(struct nand_chip *chip, uint32_t *buf, int le
 
 static inline void omap_nand_read(struct mtd_info *mtd, uint8_t *buf, int len)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 
 	if (chip->options & NAND_BUSWIDTH_16)
 		nand_read_buf16(mtd, buf, len);

@@ -429,7 +429,7 @@ static void omap_nand_read_prefetch(struct mtd_info *mtd, uint8_t *buf, int len)
 {
 	int ret;
 	uint32_t head, tail;
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 
 	/*
 	 * If the destination buffer is unaligned, start with reading

@@ -491,8 +491,8 @@ static void omap_reverse_list(u8 *list, unsigned int length)
 static int omap_correct_data_bch(struct mtd_info *mtd, uint8_t *dat,
 				uint8_t *read_ecc, uint8_t *calc_ecc)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct omap_nand_info *info = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct omap_nand_info *info = nand_get_controller_data(chip);
 	struct nand_ecc_ctrl *ecc = &chip->ecc;
 	uint32_t error_count = 0, error_max;
 	uint32_t error_loc[ELM_MAX_ERROR_COUNT];

@@ -652,8 +652,8 @@ static int omap_correct_data_bch_sw(struct mtd_info *mtd, u_char *data,
 	int i, count;
 	/* cannot correct more than 8 errors */
 	unsigned int errloc[8];
-	struct nand_chip *chip = mtd->priv;
-	struct omap_nand_info *info = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct omap_nand_info *info = nand_get_controller_data(chip);
 
 	count = decode_bch(info->control, NULL, 512, read_ecc, calc_ecc,
 							NULL, errloc);

@@ -691,8 +691,8 @@ static int omap_correct_data_bch_sw(struct mtd_info *mtd, u_char *data,
  */
 static void __maybe_unused omap_free_bch(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct omap_nand_info *info = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct omap_nand_info *info = nand_get_controller_data(chip);
 
 	if (info->control) {
 		free_bch(info->control);

@@ -710,7 +710,7 @@ static void __maybe_unused omap_free_bch(struct mtd_info *mtd)
  */
 static int omap_select_ecc_scheme(struct nand_chip *nand,
 	enum omap_ecc ecc_scheme, unsigned int pagesize, unsigned int oobsize) {
-	struct omap_nand_info	*info		= nand->priv;
+	struct omap_nand_info	*info		= nand_get_controller_data(nand);
 	struct nand_ecclayout	*ecclayout	= &omap_ecclayout;
 	int eccsteps = pagesize / SECTOR_BYTES;
 	int i;

@@ -904,7 +904,7 @@ int __maybe_unused omap_nand_switch_ecc(uint32_t hardware, uint32_t eccstrength)
 	}
 
 	mtd = nand_info[nand_curr_device];
-	nand = mtd->priv;
+	nand = mtd_to_nand(mtd);
 	nand->options |= NAND_OWN_BUFFERS;
 	nand->options &= ~NAND_SUBPAGE_READ;
 	/* Setup the ecc configurations again */

@@ -994,7 +994,7 @@ int board_nand_init(struct nand_chip *nand)
 	omap_nand_info[cs].control = NULL;
 	omap_nand_info[cs].cs = cs;
 	omap_nand_info[cs].ws = wscfg[cs];
-	nand->priv	= &omap_nand_info[cs];
+	nand_set_controller_data(nand, &omap_nand_info[cs]);
 	nand->cmd_ctrl	= omap_nand_hwcontrol;
 	nand->options	|= NAND_NO_PADDING | NAND_CACHEPRG;
 	nand->chip_delay = 100;

index 125dbe7..03bf046 100644
@@ -900,7 +900,8 @@ static int prepare_set_command(struct pxa3xx_nand_info *info, int command,
 static void nand_cmdfunc(struct mtd_info *mtd, unsigned command,
 			 int column, int page_addr)
 {
-	struct pxa3xx_nand_host *host = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct pxa3xx_nand_host *host = nand_get_controller_data(chip);
 	struct pxa3xx_nand_info *info = host->info_data;
 	int exec_cmd;
 

@@ -960,7 +961,8 @@ static void nand_cmdfunc_extended(struct mtd_info *mtd,
 				  const unsigned command,
 				  int column, int page_addr)
 {
-	struct pxa3xx_nand_host *host = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct pxa3xx_nand_host *host = nand_get_controller_data(chip);
 	struct pxa3xx_nand_info *info = host->info_data;
 	int exec_cmd, ext_cmd_type;
 

@@ -1091,7 +1093,7 @@ static int pxa3xx_nand_read_page_hwecc(struct mtd_info *mtd,
 		struct nand_chip *chip, uint8_t *buf, int oob_required,
 		int page)
 {
-	struct pxa3xx_nand_host *host = mtd->priv;
+	struct pxa3xx_nand_host *host = nand_get_controller_data(chip);
 	struct pxa3xx_nand_info *info = host->info_data;
 
 	chip->read_buf(mtd, buf, mtd->writesize);

@@ -1117,7 +1119,8 @@ static int pxa3xx_nand_read_page_hwecc(struct mtd_info *mtd,
 
 static uint8_t pxa3xx_nand_read_byte(struct mtd_info *mtd)
 {
-	struct pxa3xx_nand_host *host = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct pxa3xx_nand_host *host = nand_get_controller_data(chip);
 	struct pxa3xx_nand_info *info = host->info_data;
 	char retval = 0xFF;
 

@@ -1130,7 +1133,8 @@ static uint8_t pxa3xx_nand_read_byte(struct mtd_info *mtd)
 
 static u16 pxa3xx_nand_read_word(struct mtd_info *mtd)
 {
-	struct pxa3xx_nand_host *host = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct pxa3xx_nand_host *host = nand_get_controller_data(chip);
 	struct pxa3xx_nand_info *info = host->info_data;
 	u16 retval = 0xFFFF;
 

@@ -1143,7 +1147,8 @@ static u16 pxa3xx_nand_read_word(struct mtd_info *mtd)
 
 static void pxa3xx_nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 {
-	struct pxa3xx_nand_host *host = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct pxa3xx_nand_host *host = nand_get_controller_data(chip);
 	struct pxa3xx_nand_info *info = host->info_data;
 	int real_len = min_t(size_t, len, info->buf_count - info->buf_start);
 

@@ -1154,7 +1159,8 @@ static void pxa3xx_nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 static void pxa3xx_nand_write_buf(struct mtd_info *mtd,
 		const uint8_t *buf, int len)
 {
-	struct pxa3xx_nand_host *host = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct pxa3xx_nand_host *host = nand_get_controller_data(chip);
 	struct pxa3xx_nand_info *info = host->info_data;
 	int real_len = min_t(size_t, len, info->buf_count - info->buf_start);
 

@@ -1169,7 +1175,8 @@ static void pxa3xx_nand_select_chip(struct mtd_info *mtd, int chip)
 
 static int pxa3xx_nand_waitfunc(struct mtd_info *mtd, struct nand_chip *this)
 {
-	struct pxa3xx_nand_host *host = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct pxa3xx_nand_host *host = nand_get_controller_data(chip);
 	struct pxa3xx_nand_info *info = host->info_data;
 
 	if (info->need_wait) {

@@ -1210,7 +1217,7 @@ static int pxa3xx_nand_config_flash(struct pxa3xx_nand_info *info)
 {
 	struct pxa3xx_nand_host *host = info->host[info->cs];
 	struct mtd_info *mtd = host->mtd;
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 
 	info->reg_ndcr |= (host->col_addr_cycles == 2) ? NDCR_RA_START : 0;
 	info->reg_ndcr |= (chip->page_shift == 6) ? NDCR_PG_PER_BLK : 0;

@@ -1262,7 +1269,7 @@ static int pxa3xx_nand_sensing(struct pxa3xx_nand_host *host)
 	int ret;
 
 	mtd = info->host[info->cs]->mtd;
-	chip = mtd->priv;
+	chip = mtd_to_nand(mtd);
 
 	/* configure default flash values */
 	info->reg_ndcr = 0x0; /* enable all interrupts */

@@ -1354,10 +1361,10 @@ static int pxa_ecc_init(struct pxa3xx_nand_info *info,
 
 static int pxa3xx_nand_scan(struct mtd_info *mtd)
 {
-	struct pxa3xx_nand_host *host = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct pxa3xx_nand_host *host = nand_get_controller_data(chip);
 	struct pxa3xx_nand_info *info = host->info_data;
 	struct pxa3xx_nand_platform_data *pdata = info->pdata;
-	struct nand_chip *chip = mtd->priv;
 	int ret;
 	uint16_t ecc_strength, ecc_step;
 

@@ -1479,14 +1486,13 @@ static int alloc_nand_resource(struct pxa3xx_nand_info *info)
 	for (cs = 0; cs < pdata->num_cs; cs++) {
 		chip = (struct nand_chip *)
 			((u8 *)&info[1] + sizeof(*host) * cs);
-		mtd = &chip->mtd;
+		mtd = nand_to_mtd(chip);
 		host = (struct pxa3xx_nand_host *)chip;
 		info->host[cs] = host;
 		host->mtd = mtd;
 		host->cs = cs;
 		host->info_data = info;
 		host->read_id_bytes = 4;
-		mtd->priv = host;
 		mtd->owner = THIS_MODULE;
 
 		chip->ecc.read_page	= pxa3xx_nand_read_page_hwecc;

index b3a2a60..2a0da6e 100644
@@ -31,7 +31,7 @@
 static void nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
 {
 	int i;
-	struct nand_chip *this = mtd->priv;
+	struct nand_chip *this = mtd_to_nand(mtd);
 
 	for (i = 0; i < len; i++)
 		buf[i] = readb(this->IO_ADDR_R);

@@ -40,7 +40,7 @@ static void nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
 
 static void s3c24x0_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	struct s3c24x0_nand *nand = s3c24x0_get_base_nand();
 
 	debug("hwcontrol(): 0x%02x 0x%02x\n", cmd, ctrl);

index b20fb1e..3eae4cb 100644
@@ -143,10 +143,10 @@ static int nand_waitfor_cmd_completion(struct nand_ctlr *reg)
  */
 static uint8_t read_byte(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	struct nand_drv *info;
 
-	info = (struct nand_drv *)chip->priv;
+	info = (struct nand_drv *)nand_get_controller_data(chip);
 
 	writel(CMD_GO | CMD_PIO | CMD_RX | CMD_CE0 | CMD_A_VALID,
 	       &info->reg->command);

@@ -169,8 +169,8 @@ static void read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 {
 	int i, s;
 	unsigned int reg;
-	struct nand_chip *chip = mtd->priv;
-	struct nand_drv *info = (struct nand_drv *)chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_drv *info = (struct nand_drv *)nand_get_controller_data(chip);
 
 	for (i = 0; i < len; i += 4) {
 		s = (len - i) > 4 ? 4 : len - i;

@@ -194,11 +194,11 @@ static void read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
  */
 static int nand_dev_ready(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	int reg_val;
 	struct nand_drv *info;
 
-	info = (struct nand_drv *)chip->priv;
+	info = (struct nand_drv *)nand_get_controller_data(chip);
 
 	reg_val = readl(&info->reg->status);
 	if (reg_val & STATUS_RBSY0)

@@ -245,10 +245,10 @@ static void nand_clear_interrupt_status(struct nand_ctlr *reg)
 static void nand_command(struct mtd_info *mtd, unsigned int command,
 	int column, int page_addr)
 {
-	struct nand_chip *chip = mtd->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
 	struct nand_drv *info;
 
-	info = (struct nand_drv *)chip->priv;
+	info = (struct nand_drv *)nand_get_controller_data(chip);
 
 	/*
 	 * Write out the command to the device.

@@ -512,7 +512,7 @@ static int nand_rw_page(struct mtd_info *mtd, struct nand_chip *chip,
 		return -EINVAL;
 	}
 
-	info = (struct nand_drv *)chip->priv;
+	info = (struct nand_drv *)nand_get_controller_data(chip);
 	config = &info->config;
 	if (set_bus_width_page_size(config, &reg_val))
 		return -EINVAL;

@@ -662,7 +662,7 @@ static int nand_write_page_hwecc(struct mtd_info *mtd,
 	int page;
 	struct nand_drv *info;
 
-	info = (struct nand_drv *)chip->priv;
+	info = (struct nand_drv *)nand_get_controller_data(chip);
 
 	page = (readl(&info->reg->addr_reg1) >> 16) |
 		(readl(&info->reg->addr_reg2) << 16);

@@ -702,7 +702,7 @@ static int nand_write_page_raw(struct mtd_info *mtd,
 	int page;
 	struct nand_drv *info;
 
-	info = (struct nand_drv *)chip->priv;
+	info = (struct nand_drv *)nand_get_controller_data(chip);
 	page = (readl(&info->reg->addr_reg1) >> 16) |
 		(readl(&info->reg->addr_reg2) << 16);
 

@@ -734,7 +734,7 @@ static int nand_rw_oob(struct mtd_info *mtd, struct nand_chip *chip,
 
 	if (((int)chip->oob_poi) & 0x03)
 		return -EINVAL;
-	info = (struct nand_drv *)chip->priv;
+	info = (struct nand_drv *)nand_get_controller_data(chip);
 	if (set_bus_width_page_size(&info->config, &reg_val))
 		return -EINVAL;
 

@@ -963,7 +963,7 @@ int tegra_nand_init(struct nand_chip *nand, int devnum)
 	nand->ecc.strength = 1;
 	nand->select_chip = nand_select_chip;
 	nand->dev_ready  = nand_dev_ready;
-	nand->priv = &nand_ctrl;
+	nand_set_controller_data(nand, &nand_ctrl);
 
 	/* Disable subpage writes as we do not provide ecc->hwctl */
 	nand->options |= NAND_NO_SUBPAGE_WRITE;

@@ -976,8 +976,7 @@ int tegra_nand_init(struct nand_chip *nand, int devnum)
 
 	dm_gpio_set_value(&config->wp_gpio, 1);
 
-	our_mtd = &nand->mtd;
-	our_mtd->priv = nand;
+	our_mtd = nand_to_mtd(nand);
 	ret = nand_scan_ident(our_mtd, CONFIG_SYS_NAND_MAX_CHIPS, NULL);
 	if (ret)
 		return ret;

index 3be8b02..a4d5a62 100644
@@ -155,8 +155,7 @@ struct vf610_nfc {
 	enum vf610_nfc_alt_buf alt_buf;
 };
 
-#define mtd_to_nfc(_mtd) \
-	(struct vf610_nfc *)((struct nand_chip *)_mtd->priv)->priv
+#define mtd_to_nfc(_mtd) nand_get_controller_data(mtd_to_nand(_mtd))
 
 #if defined(CONFIG_SYS_NAND_VF610_NFC_45_ECC_BYTES)
 #define ECC_HW_MODE ECC_45_BYTE

@@ -653,9 +652,8 @@ static int vf610_nfc_nand_init(int devnum, void __iomem *addr)
 	chip = &nfc->chip;
 	nfc->regs = addr;
 
-	mtd = &chip->mtd;
-	mtd->priv = chip;
-	chip->priv = nfc;
+	mtd = nand_to_mtd(chip);
+	nand_set_controller_data(chip, nfc);
 
 	if (cfg.width == 16)
 		chip->options |= NAND_BUSWIDTH_16;

index 6d86871..25aa6d1 100644
@@ -190,7 +190,7 @@ void cmd_yaffs_devconfig(char *_mp, int flash_dev,
 		goto err;
 	}
 
-	chip =  mtd->priv;
+	chip =  mtd_to_nand(mtd);
 
 	/* Check for any conflicts */
 	yaffs_dev_rewind();

index fe8ac9d..e1df66b 100644
@@ -740,6 +740,26 @@ struct nand_chip {
 	void *priv;
 };
 
+static inline struct nand_chip *mtd_to_nand(struct mtd_info *mtd)
+{
+	return container_of(mtd, struct nand_chip, mtd);
+}
+
+static inline struct mtd_info *nand_to_mtd(struct nand_chip *chip)
+{
+	return &chip->mtd;
+}
+
+static inline void *nand_get_controller_data(struct nand_chip *chip)
+{
+	return chip->priv;
+}
+
+static inline void nand_set_controller_data(struct nand_chip *chip, void *priv)
+{
+	chip->priv = priv;
+}
+
 /*
  * NAND Flash Manufacturer ID Codes
  */