From: Huang Shijie <b32955@freescale.com>
Date: Fri, 17 May 2013 03:17:30 +0000 (+0800)
Subject: mtd: replace the hardcode with the onfi_feature()
X-Git-Tag: v3.12-rc1~82^2~54
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=e2985fc1d684927ce1dd5e5e6d35db8b52302685;p=linux.git

mtd: replace the hardcode with the onfi_feature()

The current code uses the hardcode to detect the 16-bit bus width.
Use the onfi_feature() to replace it.

Signed-off-by: Huang Shijie <b32955@freescale.com>
[Brian: small fixup]
Signed-off-by: Brian Norris <computersforpeace@gmail.com>

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
---

diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index d8c723c185b2..51d5b81f316c 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -2981,9 +2981,11 @@ static int nand_flash_detect_onfi(struct mtd_info *mtd, struct nand_chip *chip,
 	mtd->oobsize = le16_to_cpu(p->spare_bytes_per_page);
 	chip->chipsize = le32_to_cpu(p->blocks_per_lun);
 	chip->chipsize *= (uint64_t)mtd->erasesize * p->lun_count;
-	*busw = 0;
-	if (le16_to_cpu(p->features) & 1)
+
+	if (onfi_feature(chip) & ONFI_FEATURE_16_BIT_BUS)
 		*busw = NAND_BUSWIDTH_16;
+	else
+		*busw = 0;
 
 	if (p->ecc_bits != 0xff) {
 		chip->ecc_strength_ds = p->ecc_bits;