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Diffstat (limited to 'arch/mips/vr41xx/common/irq.c')
-rw-r--r--arch/mips/vr41xx/common/irq.c29
1 files changed, 25 insertions, 4 deletions
diff --git a/arch/mips/vr41xx/common/irq.c b/arch/mips/vr41xx/common/irq.c
index 61aa264275ff..86796bb63c3c 100644
--- a/arch/mips/vr41xx/common/irq.c
+++ b/arch/mips/vr41xx/common/irq.c
@@ -59,7 +59,7 @@ int cascade_irq(unsigned int irq, int (*get_irq)(unsigned int, struct pt_regs *)
59 59
60EXPORT_SYMBOL_GPL(cascade_irq); 60EXPORT_SYMBOL_GPL(cascade_irq);
61 61
62asmlinkage void irq_dispatch(unsigned int irq, struct pt_regs *regs) 62static void irq_dispatch(unsigned int irq, struct pt_regs *regs)
63{ 63{
64 irq_cascade_t *cascade; 64 irq_cascade_t *cascade;
65 irq_desc_t *desc; 65 irq_desc_t *desc;
@@ -84,11 +84,32 @@ asmlinkage void irq_dispatch(unsigned int irq, struct pt_regs *regs)
84 do_IRQ(irq, regs); 84 do_IRQ(irq, regs);
85} 85}
86 86
87extern asmlinkage void vr41xx_handle_interrupt(void); 87asmlinkage void plat_irq_dispatch(struct pt_regs *regs)
88{
89 unsigned int pending = read_c0_cause() & read_c0_status() & ST0_IM;
90
91 if (pending & CAUSEF_IP7)
92 do_IRQ(7, regs);
93 else if (pending & 0x7800) {
94 if (pending & CAUSEF_IP3)
95 irq_dispatch(3, regs);
96 else if (pending & CAUSEF_IP4)
97 irq_dispatch(4, regs);
98 else if (pending & CAUSEF_IP5)
99 irq_dispatch(5, regs);
100 else if (pending & CAUSEF_IP6)
101 irq_dispatch(6, regs);
102 } else if (pending & CAUSEF_IP2)
103 irq_dispatch(2, regs);
104 else if (pending & CAUSEF_IP0)
105 do_IRQ(0, regs);
106 else if (pending & CAUSEF_IP1)
107 do_IRQ(1, regs);
108 else
109 spurious_interrupt(regs);
110}
88 111
89void __init arch_init_irq(void) 112void __init arch_init_irq(void)
90{ 113{
91 mips_cpu_irq_init(MIPS_CPU_IRQ_BASE); 114 mips_cpu_irq_init(MIPS_CPU_IRQ_BASE);
92
93 set_except_vector(0, vr41xx_handle_interrupt);
94} 115}