diff options
| author | Eugen Hristev <eugen.hristev@microchip.com> | 2019-05-08 14:15:03 +0000 |
|---|---|---|
| committer | Wim Van Sebroeck <wim@linux-watchdog.org> | 2019-07-08 16:08:32 +0200 |
| commit | 8632944841d41a36d77dd1fa88d4201b5291100f (patch) | |
| tree | 91f424c0b8f5b9383b92ebe1595d0972dccb3b27 /drivers/watchdog | |
| parent | e14651352a8e9158b58e9ac0c16f8db106b52158 (diff) | |
watchdog: sama5d4: fix WDD value to be always set to max
WDD value must be always set to max (0xFFF) otherwise the hardware
block will reset the board on the first ping of the watchdog.
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Diffstat (limited to 'drivers/watchdog')
| -rw-r--r-- | drivers/watchdog/sama5d4_wdt.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/watchdog/sama5d4_wdt.c b/drivers/watchdog/sama5d4_wdt.c index cd3d62f9940e..dc3c0695116f 100644 --- a/drivers/watchdog/sama5d4_wdt.c +++ b/drivers/watchdog/sama5d4_wdt.c @@ -110,9 +110,7 @@ static int sama5d4_wdt_set_timeout(struct watchdog_device *wdd, u32 value = WDT_SEC2TICKS(timeout); wdt->mr &= ~AT91_WDT_WDV; - wdt->mr &= ~AT91_WDT_WDD; wdt->mr |= AT91_WDT_SET_WDV(value); - wdt->mr |= AT91_WDT_SET_WDD(value); /* * WDDIS has to be 0 when updating WDD/WDV. The datasheet states: When @@ -248,7 +246,7 @@ static int sama5d4_wdt_probe(struct platform_device *pdev) timeout = WDT_SEC2TICKS(wdd->timeout); - wdt->mr |= AT91_WDT_SET_WDD(timeout); + wdt->mr |= AT91_WDT_SET_WDD(WDT_SEC2TICKS(MAX_WDT_TIMEOUT)); wdt->mr |= AT91_WDT_SET_WDV(timeout); ret = sama5d4_wdt_init(wdt); |