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From: Sascha Hauer <s.hauer@pengutronix.de>
To: barebox@lists.infradead.org
Subject: [PATCH 01/13] NAND: reset chips before usage like the kernel does
Date: Wed, 10 Nov 2010 15:53:47 +0100	[thread overview]
Message-ID: <1289400839-5937-2-git-send-email-s.hauer@pengutronix.de> (raw)
In-Reply-To: <1289400839-5937-1-git-send-email-s.hauer@pengutronix.de>

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 drivers/mtd/nand/nand_base.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index b75a450..56fafb0 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -2215,6 +2215,12 @@ static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
 	/* Select the device */
 	chip->select_chip(mtd, 0);
 
+	/*
+	 * Reset the chip, required by some chips (e.g. Micron MT29FxGxxxxx)
+	 * after power-up
+	 */
+	chip->cmdfunc(mtd, NAND_CMD_RESET, -1, -1);
+
 	/* Send the command for reading device ID */
 	chip->cmdfunc(mtd, NAND_CMD_READID, 0x00, -1);
 
-- 
1.7.2.3


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  reply	other threads:[~2010-11-10 14:54 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-11-10 14:53 add i.MX51 Nand support Sascha Hauer
2010-11-10 14:53 ` Sascha Hauer [this message]
2010-11-10 14:53 ` [PATCH 02/13] imx_nand: remove 0xe00 offset from registers Sascha Hauer
2010-11-10 14:53 ` [PATCH 03/13] imx_nand: rework get_dev_status Sascha Hauer
2010-11-10 14:53 ` [PATCH 04/13] imx nand: remove unnecessary register write Sascha Hauer
2010-11-10 14:53 ` [PATCH 05/13] imx_nand: make some internally used functions overwriteable Sascha Hauer
2010-11-10 14:53 ` [PATCH 06/13] imx nand: do not read-modify-write SPAS register Sascha Hauer
2010-11-10 14:53 ` [PATCH 07/13] imx nand: add V1_V2 namespace to registers Sascha Hauer
2010-11-10 14:53 ` [PATCH 08/13] mxc_nand: fix correct_data function Sascha Hauer
2010-11-11  5:25   ` Baruch Siach
2010-11-11 10:32     ` Sascha Hauer
2010-11-15 12:08       ` [PATCH] " Baruch Siach
2010-11-10 14:53 ` [PATCH 09/13] imx nand: move initialization to preset function Sascha Hauer
2010-11-10 14:53 ` [PATCH 10/13] imx nand: introduce overwritable check_int function Sascha Hauer
2010-11-10 14:53 ` [PATCH 11/13] imx nand: Add v3 (i.MX51) support Sascha Hauer
2010-11-10 14:53 ` [PATCH 12/13] fb: set id for framebuffer device correctly Sascha Hauer
2010-11-10 14:55   ` Sascha Hauer
2010-11-10 14:53 ` [PATCH 13/13] ARM i.MX51: Add nand device Sascha Hauer
2010-11-11  5:26 ` add i.MX51 Nand support Jean-Christophe PLAGNIOL-VILLARD

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