+
+int __init board_staging_gic_setup_xlate(const char *gic_match,
+ unsigned int base)
+{
+ WARN_ON(irqc_node);
+
+ irqc_node = of_find_compatible_node(NULL, NULL, gic_match);
+
+ WARN_ON(!irqc_node);
+ if (!irqc_node)
+ return -ENOENT;
+
+ irqc_base = base;
+ return 0;
+}
+
+static void __init gic_fixup_resource(struct resource *res)
+{
+ struct of_phandle_args irq_data;
+ unsigned int hwirq = res->start;
+ unsigned int virq;
+
+ if (resource_type(res) != IORESOURCE_IRQ || !irqc_node)
+ return;
+
+ irq_data.np = irqc_node;
+ irq_data.args_count = 3;
+ irq_data.args[0] = 0;
+ irq_data.args[1] = hwirq - irqc_base;
+ switch (res->flags &
+ (IORESOURCE_IRQ_LOWEDGE | IORESOURCE_IRQ_HIGHEDGE |
+ IORESOURCE_IRQ_LOWLEVEL | IORESOURCE_IRQ_HIGHLEVEL)) {
+ case IORESOURCE_IRQ_LOWEDGE:
+ irq_data.args[2] = IRQ_TYPE_EDGE_FALLING;
+ break;
+ case IORESOURCE_IRQ_HIGHEDGE:
+ irq_data.args[2] = IRQ_TYPE_EDGE_RISING;
+ break;
+ case IORESOURCE_IRQ_LOWLEVEL:
+ irq_data.args[2] = IRQ_TYPE_LEVEL_LOW;
+ break;
+ case IORESOURCE_IRQ_HIGHLEVEL:
+ default:
+ irq_data.args[2] = IRQ_TYPE_LEVEL_HIGH;
+ break;
+ }
+
+ virq = irq_create_of_mapping(&irq_data);
+ if (WARN_ON(!virq))
+ return;
+
+ pr_debug("hwirq %u -> virq %u\n", hwirq, virq);
+ res->start = virq;
+}
+
+void __init board_staging_gic_fixup_resources(struct resource *res,
+ unsigned int nres)
+{
+ unsigned int i;
+
+ for (i = 0; i < nres; i++)
+ gic_fixup_resource(&res[i]);
+}