From: Aaron Wu <Aaron.Wu@analog.com>
Date: Wed, 6 Mar 2013 10:37:49 +0000 (+0800)
Subject: Platform Nand: Set the GPIO for NAND read as input
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=7546dfb0b23eb695cc01e2d27101bf82077bc0a4;p=linux-beck.git

Platform Nand: Set the GPIO for NAND read as input

This patch is from Frank.Shew,fshew@geometrics.com to fix the
following problem:having extremely slow responses with the NAND
due to timeouts on the ready status signal, which eventually
caused the watchdog to time out.

Signed-off-by: Aaron Wu <Aaron.Wu@analog.com>
Signed-off-by: Steven Miao <realmz6@gmail.com>
---

diff --git a/arch/blackfin/mach-bf537/boards/stamp.c b/arch/blackfin/mach-bf537/boards/stamp.c
index 95114ed395ac..6a3a14bcd3a1 100644
--- a/arch/blackfin/mach-bf537/boards/stamp.c
+++ b/arch/blackfin/mach-bf537/boards/stamp.c
@@ -455,6 +455,7 @@ static struct platform_device bfin_async_nand_device = {
 static void bfin_plat_nand_init(void)
 {
 	gpio_request(BFIN_NAND_PLAT_READY, "bfin_nand_plat");
+	gpio_direction_input(BFIN_NAND_PLAT_READY);
 }
 #else
 static void bfin_plat_nand_init(void) {}