From 5a6e1502ebb11770bcd76de7b00baff6cf467fc1 Mon Sep 17 00:00:00 2001
From: Alexander Shiyan <shc_work@mail.ru>
Date: Fri, 13 Jun 2014 11:26:13 +0400
Subject: ARM: i.MX system: Add a reset fallback if base address of watchdog is
 not set

This patch adds a reset fallback if base address of watchdog is not set.
This is intended for a targets not compatible with imx-21 watchdog,
i.MX1 for example.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>

diff --git a/arch/arm/mach-imx/system.c b/arch/arm/mach-imx/system.c
index 92d11c2..d14c33f 100644
--- a/arch/arm/mach-imx/system.c
+++ b/arch/arm/mach-imx/system.c
@@ -42,6 +42,9 @@ void mxc_restart(enum reboot_mode mode, const char *cmd)
 {
 	unsigned int wcr_enable;
 
+	if (!wdog_base)
+		goto reset_fallback;
+
 	if (!IS_ERR(wdog_clk))
 		clk_enable(wdog_clk);
 
@@ -70,6 +73,7 @@ void mxc_restart(enum reboot_mode mode, const char *cmd)
 	/* delay to allow the serial port to show the message */
 	mdelay(50);
 
+reset_fallback:
 	/* we'll take a jump through zero as a poor second */
 	soft_restart(0);
 }
-- 
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