[PATCH] imx_watchdog: do not soft-reset while watchdog init

Anatolij Gustschin agust at denx.de
Tue Apr 16 11:01:54 CEST 2013


Currently the driver clears WCR_SRS bit when enabling
the watchdog and this causes a software reset. Do not
clear WCR_SRS.

Signed-off-by: Anatolij Gustschin <agust at denx.de>
---
 drivers/watchdog/imx_watchdog.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/watchdog/imx_watchdog.c b/drivers/watchdog/imx_watchdog.c
index 50e602a..d5993b4 100644
--- a/drivers/watchdog/imx_watchdog.c
+++ b/drivers/watchdog/imx_watchdog.c
@@ -19,6 +19,7 @@ struct watchdog_regs {
 #define WCR_WDBG	0x02
 #define WCR_WDE		0x04	/* WDOG enable */
 #define WCR_WDT		0x08
+#define WCR_SRS		0x10
 #define WCR_WDW		0x80
 #define SET_WCR_WT(x)	(x << 8)
 
@@ -45,7 +46,7 @@ void hw_watchdog_init(void)
 #define CONFIG_WATCHDOG_TIMEOUT_MSECS 128000
 #endif
 	timeout = (CONFIG_WATCHDOG_TIMEOUT_MSECS / 500) - 1;
-	writew(WCR_WDZST | WCR_WDBG | WCR_WDE | WCR_WDT |
+	writew(WCR_WDZST | WCR_WDBG | WCR_WDE | WCR_WDT | WCR_SRS |
 		WCR_WDW | SET_WCR_WT(timeout), &wdog->wcr);
 	hw_watchdog_reset();
 }
-- 
1.7.9.5


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