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yaml
---
r: 260567
b: refs/heads/master
c: a551e4f
h: refs/heads/master
i:
  260565: 14b35c5
  260563: bb1e6c8
  260559: e817778
v: v3
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Eric Miao committed Jul 12, 2011
1 parent 85fd1b7 commit d60a1a3
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Showing 3 changed files with 36 additions and 1 deletion.
2 changes: 1 addition & 1 deletion [refs]
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@@ -1,2 +1,2 @@
---
refs/heads/master: 5d284e353eb11ab2e8b1c5671ba06489b0bd1e0c
refs/heads/master: a551e4f787220459c6e78668a15cbe01f1ac7637
3 changes: 3 additions & 0 deletions trunk/arch/arm/mach-pxa/include/mach/irqs.h
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Expand Up @@ -106,9 +106,12 @@

#ifndef __ASSEMBLY__
struct irq_data;
struct pt_regs;

void pxa_mask_irq(struct irq_data *);
void pxa_unmask_irq(struct irq_data *);
void icip_handle_irq(struct pt_regs *);
void ichp_handle_irq(struct pt_regs *);
#endif

#endif /* __ASM_MACH_IRQS_H */
32 changes: 32 additions & 0 deletions trunk/arch/arm/mach-pxa/irq.c
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Expand Up @@ -37,6 +37,8 @@
#define IPR(i) (((i) < 32) ? (0x01c + ((i) << 2)) : \
((i) < 64) ? (0x0b0 + (((i) - 32) << 2)) : \
(0x144 + (((i) - 64) << 2)))
#define ICHP_VAL_IRQ (1 << 31)
#define ICHP_IRQ(i) (((i) >> 16) & 0x7fff)
#define IPR_VALID (1 << 31)
#define IRQ_BIT(n) (((n) - PXA_IRQ(0)) & 0x1f)

Expand Down Expand Up @@ -127,6 +129,36 @@ static struct irq_chip pxa_low_gpio_chip = {
.irq_set_type = pxa_set_low_gpio_type,
};

asmlinkage void __exception_irq_entry icip_handle_irq(struct pt_regs *regs)
{
uint32_t icip, icmr, mask;

do {
icip = __raw_readl(IRQ_BASE + ICIP);
icmr = __raw_readl(IRQ_BASE + ICMR);
mask = icip & icmr;

if (mask == 0)
break;

handle_IRQ(PXA_IRQ(fls(mask) - 1), regs);
} while (1);
}

asmlinkage void __exception_irq_entry ichp_handle_irq(struct pt_regs *regs)
{
uint32_t ichp;

do {
__asm__ __volatile__("mrc p6, 0, %0, c5, c0, 0\n": "=r"(ichp));

if ((ichp & ICHP_VAL_IRQ) == 0)
break;

handle_IRQ(PXA_IRQ(ICHP_IRQ(ichp)), regs);
} while (1);
}

static void __init pxa_init_low_gpio_irq(set_wake_t fn)
{
int irq;
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