From 4aef9b78de057349ad9d620851b14800af0b962c Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Mon, 24 Sep 2012 20:40:48 -0700 Subject: mtd: nand: remove redundant ID read Instead of reading 2 bytes then later 8 bytes, we can simply read all 8 bytes from the start. Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index d410784..77b3400 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -2942,7 +2942,8 @@ static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd, chip->cmdfunc(mtd, NAND_CMD_READID, 0x00, -1); - for (i = 0; i < 2; i++) + /* Read entire ID string */ + for (i = 0; i < 8; i++) id_data[i] = chip->read_byte(mtd); if (id_data[0] != *maf_id || id_data[1] != *dev_id) { @@ -2966,13 +2967,6 @@ static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd, goto ident_done; } - chip->cmdfunc(mtd, NAND_CMD_READID, 0x00, -1); - - /* Read entire ID string */ - - for (i = 0; i < 8; i++) - id_data[i] = chip->read_byte(mtd); - if (!type->name) return ERR_PTR(-ENODEV); -- cgit v0.10.2