From 843a2654bce74192de2b5a43474fdc27a572ab40 Mon Sep 17 00:00:00 2001
From: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Date: Fri, 27 Mar 2009 23:26:42 +0100
Subject: at91sam9: add watchdog support

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
---
 drivers/serial/atmel_usart.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'drivers/serial/atmel_usart.c')

diff --git a/drivers/serial/atmel_usart.c b/drivers/serial/atmel_usart.c
index f3b146c..f50552a 100644
--- a/drivers/serial/atmel_usart.c
+++ b/drivers/serial/atmel_usart.c
@@ -16,6 +16,7 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 #include <common.h>
+#include <watchdog.h>
 
 #include <asm/io.h>
 #include <asm/arch/clk.h>
@@ -87,7 +88,8 @@ void serial_puts(const char *s)
 
 int serial_getc(void)
 {
-	while (!(usart3_readl(CSR) & USART3_BIT(RXRDY))) ;
+	while (!(usart3_readl(CSR) & USART3_BIT(RXRDY)))
+		 WATCHDOG_RESET();
 	return usart3_readl(RHR);
 }
 
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