From d0e932de7c8e46ade1994e03e864636db3922520 Mon Sep 17 00:00:00 2001
From: Stefan Roese <sr@denx.de>
Date: Fri, 19 Dec 2014 13:49:10 +0100
Subject: arm: socfpga: Change watchdog timeout

The current current watchdog timeout of 12 seconds is a bit small for
booting into Linux, especially when using a NFS based rootfs. So lets
change this timeout to a more defensive value of 30 seconds.

Also we now call the hw_watchdog_init() function so that we override
the value already configured from the Preloader.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Vince Bridgers <vbridger@opensource.altera.com>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: Chin Liang See <clsee@altera.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Pavel Machek <pavel@denx.de>
---
 arch/arm/cpu/armv7/socfpga/misc.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

(limited to 'arch/arm')

diff --git a/arch/arm/cpu/armv7/socfpga/misc.c b/arch/arm/cpu/armv7/socfpga/misc.c
index 73cffd3..7873c38 100644
--- a/arch/arm/cpu/armv7/socfpga/misc.c
+++ b/arch/arm/cpu/armv7/socfpga/misc.c
@@ -9,6 +9,7 @@
 #include <altera.h>
 #include <miiphy.h>
 #include <netdev.h>
+#include <watchdog.h>
 #include <asm/arch/reset_manager.h>
 #include <asm/arch/system_manager.h>
 #include <asm/arch/dwmmc.h>
@@ -150,14 +151,23 @@ static inline void socfpga_fpga_add(void) {}
 
 int arch_cpu_init(void)
 {
+#ifdef CONFIG_HW_WATCHDOG
+	/*
+	 * In case the watchdog is enabled, make sure to (re-)configure it
+	 * so that the defined timeout is valid. Otherwise the SPL (Perloader)
+	 * timeout value is still active which might too short for Linux
+	 * booting.
+	 */
+	hw_watchdog_init();
+#else
 	/*
 	 * If the HW watchdog is NOT enabled, make sure it is not running,
 	 * for example because it was enabled in the preloader. This might
 	 * trigger a watchdog-triggered reboot of Linux kernel later.
 	 */
-#ifndef CONFIG_HW_WATCHDOG
 	socfpga_watchdog_reset();
 #endif
+
 	return 0;
 }
 
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