1 #include <linux/interrupt.h>
5 #include <asm/apollohw.h>
7 unsigned int apollo_irq_startup(struct irq_data *data)
9 unsigned int irq = data->irq;
12 *(volatile unsigned char *)(pica+1) &= ~(1 << irq);
14 *(volatile unsigned char *)(picb+1) &= ~(1 << (irq - 8));
18 void apollo_irq_shutdown(struct irq_data *data)
20 unsigned int irq = data->irq;
23 *(volatile unsigned char *)(pica+1) |= (1 << irq);
25 *(volatile unsigned char *)(picb+1) |= (1 << (irq - 8));
28 void apollo_irq_eoi(struct irq_data *data)
30 *(volatile unsigned char *)(pica) = 0x20;
31 *(volatile unsigned char *)(picb) = 0x20;
34 static struct irq_chip apollo_irq_chip = {
36 .irq_startup = apollo_irq_startup,
37 .irq_shutdown = apollo_irq_shutdown,
38 .irq_eoi = apollo_irq_eoi,
42 void __init dn_init_IRQ(void)
44 m68k_setup_user_interrupt(VEC_USER + 96, 16);
45 m68k_setup_irq_controller(&apollo_irq_chip, handle_fasteoi_irq,