From f793a3581901ff39c2abb94012d9bbc8573ccf02 Mon Sep 17 00:00:00 2001
From: David Brownell <david-b@pacbell.net>
Date: Wed, 16 Apr 2008 22:57:58 -0700
Subject: avr32: Disable the AP7000 internal watchdog on startup

This patch forces the watchdog off in all cases.  That will at least
get rid of the constant reboot cycle, though it won't let the watchdog
actually run in the new kernels:  its probe() comes up with a polite
warning.

Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>

diff --git a/cpu/at32ap/cpu.c b/cpu/at32ap/cpu.c
index 311466b..4542e67 100644
--- a/cpu/at32ap/cpu.c
+++ b/cpu/at32ap/cpu.c
@@ -86,6 +86,10 @@ int cpu_init(void)
 	extern void _evba(void);
 	char *p;
 
+	/* in case of soft resets, disable watchdog */
+	sm_writel(WDT_CTRL, SM_BF(KEY, 0x55));
+	sm_writel(WDT_CTRL, SM_BF(KEY, 0xaa));
+
 	gd->cpu_hz = CFG_OSC0_HZ;
 
 	/* TODO: Move somewhere else, but needs to be run before we
-- 
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