linux-kernel - [PATCH V3 5/9] mtd: replace the hardcode with the onfi

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Message-ID: <1366707297-31309-6-git-send-email-b32955@freescale.com>
Date:	Tue, 23 Apr 2013 16:54:53 +0800
From:	Huang Shijie <b32955@...escale.com>
To:	<dwmw2@...radead.org>
CC:	<dedekind1@...il.com>, <computersforpeace@...il.com>,
	<linux-mtd@...ts.infradead.org>, <linux-kernel@...r.kernel.org>,
	Huang Shijie <b32955@...escale.com>
Subject: [PATCH V3 5/9] 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@...escale.com>
---
 drivers/mtd/nand/nand_base.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index 584cb0f..8b2a792 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -2974,9 +2974,9 @@ 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)
-		*busw = NAND_BUSWIDTH_16;
+
+	*busw = (onfi_feature(chip) & ONFI_FEATURE_16_BIT_BUS) ?
+			NAND_BUSWIDTH_16 : 0;
 
 	if (p->ecc_bits != 0xff) {
 		chip->ecc_strength = p->ecc_bits;
-- 
1.7.1


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