[PATCH] NAND: Partition name support added to NAND subsystem

chpart, nboot and NAND subsystem related commands now accept also partition
name to specify offset.

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/drivers/nand/nand_util.c b/drivers/nand/nand_util.c
index 7570210..10bf036 100644
--- a/drivers/nand/nand_util.c
+++ b/drivers/nand/nand_util.c
@@ -83,15 +83,8 @@
 
 	erase.mtd = meminfo;
 	erase.len  = meminfo->erasesize;
-	if (opts->offset == 0 && opts->length == 0) {
-		/* erase complete chip */
-		erase.addr = 0;
-		erase_length = meminfo->size;
-	} else {
-		/* erase specified region */
-		erase.addr = opts->offset;
-		erase_length = opts->length;
-	}
+	erase.addr = opts->offset;
+	erase_length = opts->length;
 
 	isNAND = meminfo->type == MTD_NANDFLASH ? 1 : 0;