From 67a490d60d70f2b01d55976440ba30154af96965 Mon Sep 17 00:00:00 2001
From: michael <trimarchi@gandalf.sssup.it>
Date: Mon, 14 Mar 2011 21:16:38 +0000
Subject: atmel_nand: don't require CONFIG_SYS_NAND_ENABLE_PIN

If NCE is hooked up to NCS3, we don't need to (and can't)
explicitly set the state of the NCE pin. Instead, the
controller asserts it automatically as part of a
command/data access. Only "CE don't care"-type NAND chips
can be used in this manner.

Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Cc: Scott Wood <scottwood@freescale.com>
Cc: Reinhard Meyer <u-boot@emk-elektronik.de>

diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c
index ab8bbb3..818d362 100644
--- a/drivers/mtd/nand/atmel_nand.c
+++ b/drivers/mtd/nand/atmel_nand.c
@@ -249,8 +249,10 @@ static void at91_nand_hwcontrol(struct mtd_info *mtd,
 		if (ctrl & NAND_ALE)
 			IO_ADDR_W |= CONFIG_SYS_NAND_MASK_ALE;
 
+#ifdef CONFIG_SYS_NAND_ENABLE_PIN
 		at91_set_gpio_value(CONFIG_SYS_NAND_ENABLE_PIN,
 				    !(ctrl & NAND_NCE));
+#endif
 		this->IO_ADDR_W = (void *) IO_ADDR_W;
 	}
 
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