static int armada_37xx_wdt_ping(struct watchdog_device *wdt)
{
struct armada_37xx_watchdog *dev = watchdog_get_drvdata(wdt);
/* counter 1 is retriggered by forcing end count on counter 0 */
counter_disable(dev, CNTR_ID_RETRIGGER);
counter_enable(dev, CNTR_ID_RETRIGGER);
return 0;
}
/*
* Collector
*/
static void
enable_counters (Collector *collector)
{
GList *list;
d_print ("enable\n");
for (list = collector->counters; list != NULL; list = list->next)
{
counter_t *counter = list->data;
counter_enable (counter);
}
}
static int armada_37xx_wdt_start(struct watchdog_device *wdt)
{
struct armada_37xx_watchdog *dev = watchdog_get_drvdata(wdt);
/* select counter 1 as watchdog counter */
regmap_write(dev->cpu_misc, WDT_TIMER_SELECT, WDT_TIMER_SELECT_VAL);
/* init counter 0 as retrigger counter for counter 1 */
init_counter(dev, CNTR_ID_RETRIGGER, CNTR_CTRL_MODE_ONESHOT, 0);
set_counter_value(dev, CNTR_ID_RETRIGGER, 0);
/* init counter 1 to be retriggerable by counter 0 end count */
init_counter(dev, CNTR_ID_WDOG, CNTR_CTRL_MODE_HWSIG,
CNTR_CTRL_TRIG_SRC_PREV_CNTR);
set_counter_value(dev, CNTR_ID_WDOG, dev->timeout);
/* enable counter 1 */
counter_enable(dev, CNTR_ID_WDOG);
/* start counter 1 by forcing immediate end count on counter 0 */
counter_enable(dev, CNTR_ID_RETRIGGER);
return 0;
}
