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Diffstat (limited to 'arch/mips/ddb5xxx/ddb5476/irq.c')
-rw-r--r--arch/mips/ddb5xxx/ddb5476/irq.c30
1 files changed, 26 insertions, 4 deletions
diff --git a/arch/mips/ddb5xxx/ddb5476/irq.c b/arch/mips/ddb5xxx/ddb5476/irq.c
index 5388b5868c4a..7583a1f30711 100644
--- a/arch/mips/ddb5xxx/ddb5476/irq.c
+++ b/arch/mips/ddb5xxx/ddb5476/irq.c
@@ -110,11 +110,36 @@ static void nile4_irq_setup(void)
110static struct irqaction irq_cascade = { no_action, 0, CPU_MASK_NONE, "cascade", NULL, NULL }; 110static struct irqaction irq_cascade = { no_action, 0, CPU_MASK_NONE, "cascade", NULL, NULL };
111static struct irqaction irq_error = { no_action, 0, CPU_MASK_NONE, "error", NULL, NULL }; 111static struct irqaction irq_error = { no_action, 0, CPU_MASK_NONE, "error", NULL, NULL };
112 112
113extern asmlinkage void ddb5476_handle_int(void);
114extern int setup_irq(unsigned int irq, struct irqaction *irqaction); 113extern int setup_irq(unsigned int irq, struct irqaction *irqaction);
115extern void mips_cpu_irq_init(u32 irq_base); 114extern void mips_cpu_irq_init(u32 irq_base);
116extern void vrc5476_irq_init(u32 irq_base); 115extern void vrc5476_irq_init(u32 irq_base);
117 116
117extern void vrc5476_irq_dispatch(struct pt_regs *regs);
118
119asmlinkage void plat_irq_dispatch(struct pt_regs *regs)
120{
121 unsigned int pending = read_c0_cause() & read_c0_status();
122
123 if (pending & STATUSF_IP7)
124 do_IRQ(CPU_IRQ_BASE + 7, regs);
125 else if (pending & STATUSF_IP2)
126 vrc5476_irq_dispatch(regs);
127 else if (pending & STATUSF_IP3)
128 do_IRQ(CPU_IRQ_BASE + 3, regs);
129 else if (pending & STATUSF_IP4)
130 do_IRQ(CPU_IRQ_BASE + 4, regs);
131 else if (pending & STATUSF_IP5)
132 do_IRQ(CPU_IRQ_BASE + 5, regs);
133 else if (pending & STATUSF_IP6)
134 do_IRQ(CPU_IRQ_BASE + 6, regs);
135 else if (pending & STATUSF_IP0)
136 do_IRQ(CPU_IRQ_BASE, regs);
137 else if (pending & STATUSF_IP1)
138 do_IRQ(CPU_IRQ_BASE + 1, regs);
139
140 vrc5476_irq_dispatch(regs);
141}
142
118void __init arch_init_irq(void) 143void __init arch_init_irq(void)
119{ 144{
120 /* hardware initialization */ 145 /* hardware initialization */
@@ -137,7 +162,4 @@ void __init arch_init_irq(void)
137 setup_irq(VRC5476_IRQ_BASE + VRC5476_IRQ_LBRT, &irq_error); 162 setup_irq(VRC5476_IRQ_BASE + VRC5476_IRQ_LBRT, &irq_error);
138 setup_irq(VRC5476_IRQ_BASE + VRC5476_IRQ_PCIS, &irq_error); 163 setup_irq(VRC5476_IRQ_BASE + VRC5476_IRQ_PCIS, &irq_error);
139 setup_irq(VRC5476_IRQ_BASE + VRC5476_IRQ_PCI, &irq_error); 164 setup_irq(VRC5476_IRQ_BASE + VRC5476_IRQ_PCI, &irq_error);
140
141 /* setup the grandpa intr vector */
142 set_except_vector(0, ddb5476_handle_int);
143} 165}