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-rw-r--r--arch/arc/include/asm/irq.h3
-rw-r--r--arch/arc/kernel/irq.c2
2 files changed, 3 insertions, 2 deletions
diff --git a/arch/arc/include/asm/irq.h b/arch/arc/include/asm/irq.h
index 4c588f9820cf..57898a17eb82 100644
--- a/arch/arc/include/asm/irq.h
+++ b/arch/arc/include/asm/irq.h
@@ -9,7 +9,8 @@
#ifndef __ASM_ARC_IRQ_H
#define __ASM_ARC_IRQ_H
-#define NR_IRQS 32
+#define NR_CPU_IRQS 32 /* number of interrupt lines of ARC770 CPU */
+#define NR_IRQS 128 /* allow some CPU external IRQ handling */
/* Platform Independent IRQs */
#define TIMER0_IRQ 3
diff --git a/arch/arc/kernel/irq.c b/arch/arc/kernel/irq.c
index dd4b7e32ad4f..8115fa531575 100644
--- a/arch/arc/kernel/irq.c
+++ b/arch/arc/kernel/irq.c
@@ -105,7 +105,7 @@ init_onchip_IRQ(struct device_node *intc, struct device_node *parent)
if (parent)
panic("DeviceTree incore intc not a root irq controller\n");
- root_domain = irq_domain_add_legacy(intc, NR_IRQS, 0, 0,
+ root_domain = irq_domain_add_legacy(intc, NR_CPU_IRQS, 0, 0,
&arc_intc_domain_ops, NULL);
if (!root_domain)