ARM: tegra11: dvfs: Update T40T frequency limits
[linux-3.10.git] / arch / m68k / apollo / dn_ints.c
1 #include <linux/interrupt.h>
2 #include <linux/irq.h>
3
4 #include <asm/traps.h>
5 #include <asm/apollohw.h>
6
7 unsigned int apollo_irq_startup(struct irq_data *data)
8 {
9         unsigned int irq = data->irq;
10
11         if (irq < 8)
12                 *(volatile unsigned char *)(pica+1) &= ~(1 << irq);
13         else
14                 *(volatile unsigned char *)(picb+1) &= ~(1 << (irq - 8));
15         return 0;
16 }
17
18 void apollo_irq_shutdown(struct irq_data *data)
19 {
20         unsigned int irq = data->irq;
21
22         if (irq < 8)
23                 *(volatile unsigned char *)(pica+1) |= (1 << irq);
24         else
25                 *(volatile unsigned char *)(picb+1) |= (1 << (irq - 8));
26 }
27
28 void apollo_irq_eoi(struct irq_data *data)
29 {
30         *(volatile unsigned char *)(pica) = 0x20;
31         *(volatile unsigned char *)(picb) = 0x20;
32 }
33
34 static struct irq_chip apollo_irq_chip = {
35         .name           = "apollo",
36         .irq_startup    = apollo_irq_startup,
37         .irq_shutdown   = apollo_irq_shutdown,
38         .irq_eoi        = apollo_irq_eoi,
39 };
40
41
42 void __init dn_init_IRQ(void)
43 {
44         m68k_setup_user_interrupt(VEC_USER + 96, 16);
45         m68k_setup_irq_controller(&apollo_irq_chip, handle_fasteoi_irq,
46                                   IRQ_APOLLO, 16);
47 }