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,