bsps: Move interrupt controller support to bsps

This patch is a part of the BSP source reorganization.

Update #3285.

bsps/or1k/generic_or1k/irq/irq.c

@@ -0,0 +1,43 @@
+/**
+ * @file
+ *
+ * @ingroup or1k_interrupt
+ *
+ * @brief Interrupt support.
+ */
+
+/*
+ * Copyright (c) 2014 Hesham ALMatary
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#include <bsp/irq.h>
+#include <bsp/irq-generic.h>
+#include <rtems/inttypes.h>
+
+/* Almost all of the jobs that the following functions should
+ * do are implemented in cpukit
+ */
+
+void bsp_interrupt_handler_default(rtems_vector_number vector)
+{
+    printk("spurious interrupt: %" PRIdrtems_vector_number "\n", vector);
+}
+
+rtems_status_code bsp_interrupt_facility_initialize()
+{
+  return 0;
+}
+
+void bsp_interrupt_vector_enable(rtems_vector_number vector)
+{
+  bsp_interrupt_assert(bsp_interrupt_is_valid_vector(vector));
+}
+
+void bsp_interrupt_vector_disable(rtems_vector_number vector)
+{
+  bsp_interrupt_assert(bsp_interrupt_is_valid_vector(vector));
+}