fs: use get_nand_dev_by_index()

As part of preparation for nand DM conversion the new API has been
introduced to remove direct access to nand_info array. So, use it here
instead of accessing to nand_info array directly.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>

fs/jffs2/jffs2_1pass.c

@@ -175,10 +175,15 @@ static u32 nand_cache_off = (u32)-1;
 static int read_nand_cached(u32 off, u32 size, u_char *buf)
 {
 	struct mtdids *id = current_part->dev->id;
+	struct mtd_info *mtd;
 	u32 bytes_read = 0;
 	size_t retlen;
 	int cpy_bytes;
 
+	mtd = get_nand_dev_by_index(id->num);
+	if (!mtd)
+		return -1;
+
 	while (bytes_read < size) {
 		if ((off + bytes_read < nand_cache_off) ||
 		    (off + bytes_read >= nand_cache_off+NAND_CACHE_SIZE)) {
@@ -195,8 +200,8 @@ 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(mtd, nand_cache_off,
-						&retlen, nand_cache) != 0 ||
+				      &retlen, nand_cache) != 0 ||
 					retlen != NAND_CACHE_SIZE) {
 				printf("read_nand_cached: error reading nand off %#x size %d bytes\n",
 						nand_cache_off, NAND_CACHE_SIZE);

fs/jffs2/jffs2_nand_1pass.c

@@ -796,7 +796,11 @@ jffs2_1pass_build_lists(struct part_info * part)
 	u32 counterN = 0;
 
 	struct mtdids *id = part->dev->id;
-	mtd = nand_info[id->num];
+	mtd = get_nand_dev_by_index(id->num);
+	if (!mtd) {
+		error("\nno NAND devices available\n");
+		return 0;
+	}
 
 	/* if we are building a list we need to refresh the cache. */
 	jffs_init_1pass_list(part);

fs/yaffs2/yaffs_uboot_glue.c

@@ -166,11 +166,15 @@ void cmd_yaffs_devconfig(char *_mp, int flash_dev,
 	char *mp = NULL;
 	struct nand_chip *chip;
 
+	mtd = get_nand_dev_by_index(flash_dev);
+	if (!mtd) {
+		error("\nno NAND devices available\n");
+		return;
+	}
+
 	dev = calloc(1, sizeof(*dev));
 	mp = strdup(_mp);
 
-	mtd = nand_info[flash_dev];
-
 	if (!dev || !mp) {
 		/* Alloc error */
 		printf("Failed to allocate memory\n");