irqreturn_t ath_wdt_isr(int cpl, void *dev_id)
{
unsigned delay;
extern int ath_gpio_in_val(int);
#define UDELAY_COUNT 4000
wddbg("%s: invoked\n", __func__);
for (delay = UDELAY_COUNT; delay; delay--) {
if (ath_gpio_in_val(ATH_GPIO_RESET)) {
break;
}
udelay(1000);
}
wddbg("%s: %d", __func__, delay);
if (!delay) {
wake_up(&wdt->wq);
} else {
extern void ath_restart(char *);
ath_restart(NULL);
}
return IRQ_HANDLED;
}
int ath_be_handler(struct pt_regs *regs, int is_fixup)
{
#ifdef CONFIG_MACH_AR934x
printk("ath data bus error: cause 0x%x epc 0x%x\nrebooting...", read_c0_cause(), read_c0_epc());
ath_restart(NULL);
#else
printk("ath data bus error: cause %#x\n", read_c0_cause());
#endif
return (is_fixup ? MIPS_BE_FIXUP : MIPS_BE_FATAL);
}
irqreturn_t ath_reset_irq(int cpl, void *dev_id)
{
local_irq_disable();
if(push_time == 0){
ath_gpio_config_int(AP_RESET_GPIO, INT_TYPE_LEVEL,
INT_POL_ACTIVE_HIGH);
push_time = jiffies;
local_irq_enable();
return IRQ_HANDLED;
}else{
ath_gpio_config_int(AP_RESET_GPIO, INT_TYPE_LEVEL,
INT_POL_ACTIVE_LOW);
push_time = jiffies - push_time;
}
if(push_time/HZ > 3){
/*
* since we are going to reboot the board, we
* don't need the interrupt handler anymore,
* so disable it.
*/
disable_irq(ATH_GPIO_IRQn(AP_RESET_GPIO));
wake_up(&ath_fr_wq);
printk("\nath: factory configuration restored..\n");
push_time = 0;
local_irq_enable();
return IRQ_HANDLED;
} else if(push_time/HZ < 1){
push_time = 0;
local_irq_enable();
return IRQ_HANDLED;
}else{
extern void ath_restart(char *);
ath_restart(NULL);
return IRQ_HANDLED;
}
}
