#include <linux/module.h>
#include <linux/of.h>
#include <linux/irqdomain.h>
+#include <linux/irqchip.h>
+#include "../../drivers/irqchip/irqchip.h"
#include <asm/sections.h>
#include <asm/irq.h>
#include <asm/mach_desc.h>
static struct irq_domain *root_domain;
-void __init init_onchip_IRQ(void)
+static int __init
+init_onchip_IRQ(struct device_node *intc, struct device_node *parent)
{
- struct device_node *intc = NULL;
-
- intc = of_find_compatible_node(NULL, NULL, "snps,arc700-intc");
- if (!intc)
- panic("DeviceTree Missing incore intc\n");
+ if (parent)
+ panic("DeviceTree incore intc not a root irq controller\n");
root_domain = irq_domain_add_legacy(intc, NR_IRQS, 0, 0,
&arc_intc_domain_ops, NULL);
/* with this we don't need to export root_domain */
irq_set_default_host(root_domain);
+
+ return 0;
}
+IRQCHIP_DECLARE(arc_intc, "snps,arc700-intc", init_onchip_IRQ);
+
/*
* Late Interrupt system init called from start_kernel for Boot CPU only
*
*/
void __init init_IRQ(void)
{
- init_onchip_IRQ();
-
/* Any external intc can be setup here */
if (machine_desc->init_irq)
machine_desc->init_irq();
+ /* process the entire interrupt tree in one go */
+ irqchip_init();
+
#ifdef CONFIG_SMP
/* Master CPU can initialize it's side of IPI */
if (machine_desc->init_smp)