linux-kernel - [PATCH] mtd: atmel_nand: increase chip

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Message-Id: <1406640447-9080-1-git-send-email-poggi.raph@gmail.com>
Date:	Tue, 29 Jul 2014 15:27:27 +0200
From:	Raphael Poggi <poggi.raph@...il.com>
To:	dwmw2@...radead.org, computersforpeace@...il.com,
	linux-mtd@...ts.infradead.org
Cc:	linux-kernel@...r.kernel.org, Raphael Poggi <poggi.raph@...il.com>
Subject: [PATCH] mtd: atmel_nand: increase chip_delay

Some nand with 8k page size like Micron MT29F32G08ABAAAWP need more than 20us.

Signed-off-by: Raphaël Poggi <poggi.raph@...il.com>
---
 drivers/mtd/nand/atmel_nand.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c
index e321c56..77bd877 100644
--- a/drivers/mtd/nand/atmel_nand.c
+++ b/drivers/mtd/nand/atmel_nand.c
@@ -2099,7 +2099,7 @@ static int atmel_nand_probe(struct platform_device *pdev)
 	}
 
 	nand_chip->ecc.mode = host->board.ecc_mode;
-	nand_chip->chip_delay = 20;		/* 20us command delay time */
+	nand_chip->chip_delay = 40;		/* 40us command delay time */
 
 	if (host->board.bus_width_16)	/* 16-bit bus width */
 		nand_chip->options |= NAND_BUSWIDTH_16;
-- 
1.7.9.5

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