IRQ_TIMER0
#define IRQ_TIMER0 0x05
#define IRQ_TIMER0 0x05
#define IRQ_TIMER0 28 /* TIMROT Timer0, recommend to set as FIQ. */
#define IRQ_TIMER0 0
#define IRQ_TIMER0 0x00 /* hardwired to 8254 counter 0 in sequoia */