linux-kernel - [PATCH 1/3] [mtd] bf5xx_nand driver: Fix BUG - nand driver on bf527 ezkit board crashes if bfin

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Date:	Fri, 25 Apr 2008 12:07:31 +0800
From:	Bryan Wu <cooloney@...nel.org>
To:	linux-mtd@...ts.infradead.org, dwmw2@...radead.org,
	linux-kernel@...r.kernel.org
Cc:	Michael Hennerich <michael.hennerich@...log.com>,
	Bryan Wu <cooloney@...nel.org>
Subject: [PATCH 1/3] [mtd] bf5xx_nand driver: Fix BUG - nand driver on bf527 ezkit board crashes if bfin_mac installed

From: Michael Hennerich <michael.hennerich@...log.com>

http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=4053

Singed-off-by: Michael Hennerich <michael.hennerich@...log.com>
Signed-off-by: Bryan Wu <cooloney@...nel.org>
---
 drivers/mtd/nand/bf5xx_nand.c |   16 ++++++++--------
 1 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/mtd/nand/bf5xx_nand.c b/drivers/mtd/nand/bf5xx_nand.c
index 747042a..a7afe35 100644
--- a/drivers/mtd/nand/bf5xx_nand.c
+++ b/drivers/mtd/nand/bf5xx_nand.c
@@ -1,6 +1,6 @@
 /* linux/drivers/mtd/nand/bf5xx_nand.c
  *
- * Copyright 2006-2007 Analog Devices Inc.
+ * Copyright 2006-2008 Analog Devices Inc.
  *	http://blackfin.uclinux.org/
  *	Bryan Wu <bryan.wu@...log.com>
  *
@@ -74,7 +74,7 @@ static int hardware_ecc = 1;
 static int hardware_ecc;
 #endif
 
-static unsigned short bfin_nfc_pin_req[] =
+static const unsigned short bfin_nfc_pin_req[] =
 	{P_NAND_CE,
 	 P_NAND_RB,
 	 P_NAND_D0,
@@ -581,12 +581,6 @@ static int bf5xx_nand_hw_init(struct bf5xx_nand_info *info)
 	bfin_write_NFC_IRQSTAT(val);
 	SSYNC();
 
-	if (peripheral_request_list(bfin_nfc_pin_req, DRV_NAME)) {
-		printk(KERN_ERR DRV_NAME
-		": Requesting Peripherals failed\n");
-		return -EFAULT;
-	}
-
 	/* DMA initialization  */
 	if (bf5xx_nand_dma_init(info))
 		err = -ENXIO;
@@ -654,6 +648,12 @@ static int bf5xx_nand_probe(struct platform_device *pdev)
 
 	dev_dbg(&pdev->dev, "(%p)\n", pdev);
 
+	if (peripheral_request_list(bfin_nfc_pin_req, DRV_NAME)) {
+		printk(KERN_ERR DRV_NAME
+		": Requesting Peripherals failed\n");
+		return -EFAULT;
+	}
+
 	if (!plat) {
 		dev_err(&pdev->dev, "no platform specific information\n");
 		goto exit_error;
-- 
1.5.5
--
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