at91: nand: switch atmel_nand to generic GPIO API

Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
Acked-by: Jens Scharsig (BuS Elektronik)<esw@bus-elektronik.de>
Tested-by: Jens Scharsig (BuS Elektronik)<esw@bus-elektronik.de>
Acked-by: Scott Wood <scottwood@freescale.com>
diff --git a/board/egnite/ethernut5/ethernut5.c b/board/egnite/ethernut5/ethernut5.c
index 1f5eea5..b45213c 100644
--- a/board/egnite/ethernut5/ethernut5.c
+++ b/board/egnite/ethernut5/ethernut5.c
@@ -71,6 +71,7 @@
 #include <asm/arch/at91_spi.h>
 #include <asm/arch/gpio.h>
 #include <asm/io.h>
+#include <asm/gpio.h>
 
 #include "ethernut5_pwrman.h"
 
@@ -141,7 +142,7 @@
 	/* Ready pin is optional. */
 	at91_set_pio_input(CONFIG_SYS_NAND_READY_PIN, 1);
 #endif
-	at91_set_pio_output(CONFIG_SYS_NAND_ENABLE_PIN, 1);
+	gpio_direction_output(CONFIG_SYS_NAND_ENABLE_PIN, 1);
 }
 #endif