Patchwork Bug in MTD NAND ONFI chipsize detection

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Submitter Nitin Garg
Date May 12, 2011, 6:54 a.m.
Message ID <BANLkTikrqzpU8qZ5FUgG4HaBgZAvmbOHrQ@mail.gmail.com>
Download mbox | patch
Permalink /patch/95261/
State New
Headers show

Comments

Nitin Garg - May 12, 2011, 6:54 a.m.
Here is the tested patch, pls apply.

Regards,
Nitin Garg

From 1a73f1c3d066a491d0c806883788ab9abdc736f3 Mon Sep 17 00:00:00 2001
From: Nitin Garg <nitingarg98@gmail.com>
Date: Thu, 12 May 2011 01:31:53 -0500
Subject: [PATCH] Fix ONFI NAND flash size detection by using number of
Logical Units in device


Signed-off-by: Nitin Garg <nitingarg98@gmail.com>
---
 drivers/mtd/nand/nand_base.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

 	if (le16_to_cpu(p->features) & 1)
 		busw = NAND_BUSWIDTH_16;

Patch

diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index c54a4cb..cdf6015 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -2892,7 +2892,7 @@  static int nand_flash_detect_onfi(struct
mtd_info *mtd, struct nand_chip *chip,
 	mtd->writesize = le32_to_cpu(p->byte_per_page);
 	mtd->erasesize = le32_to_cpu(p->pages_per_block) * mtd->writesize;
 	mtd->oobsize = le16_to_cpu(p->spare_bytes_per_page);
-	chip->chipsize = (uint64_t)le32_to_cpu(p->blocks_per_lun) * mtd->erasesize;
+	chip->chipsize = (uint64_t)le32_to_cpu(p->blocks_per_lun) *
le32_to_cpu(p->lun_count) * mtd->erasesize;
 	busw = 0;