hw/realview_gic.c

   1 /*
   2  * ARM RealView Emulation Baseboard Interrupt Controller
   3  *
   4  * Copyright (c) 2006-2007 CodeSourcery.
   5  * Written by Paul Brook
   6  *
   7  * This code is licensed under the GPL.
   8  */
   9
  10 #include "sysbus.h"
  11
  12 #define LEGACY_INCLUDED_GIC
  13 #include "arm_gic.c"
  14
  15 typedef struct {
  16     gic_state gic;
  17     MemoryRegion container;
  18 } RealViewGICState;
  19
  20 static void realview_gic_map_setup(RealViewGICState *s)
  21 {
  22     memory_region_init(&s->container, "realview-gic-container", 0x2000);
  23     memory_region_add_subregion(&s->container, 0, &s->gic.cpuiomem[0]);
  24     memory_region_add_subregion(&s->container, 0x1000, &s->gic.iomem);
  25 }
  26
  27 static int realview_gic_init(SysBusDevice *dev)
  28 {
  29     RealViewGICState *s = FROM_SYSBUSGIC(RealViewGICState, dev);
  30
  31     /* The GICs on the RealView boards have a fixed nonconfigurable
  32      * number of interrupt lines, so we don't need to expose this as
  33      * a qdev property.
  34      */
  35     gic_init(&s->gic, 1, 96);
  36     realview_gic_map_setup(s);
  37     sysbus_init_mmio(dev, &s->container);
  38     return 0;
  39 }
  40
  41 static void realview_gic_class_init(ObjectClass *klass, void *data)
  42 {
  43     SysBusDeviceClass *sdc = SYS_BUS_DEVICE_CLASS(klass);
  44
  45     sdc->init = realview_gic_init;
  46 }
  47
  48 static TypeInfo realview_gic_info = {
  49     .name          = "realview_gic",
  50     .parent        = TYPE_SYS_BUS_DEVICE,
  51     .instance_size = sizeof(RealViewGICState),
  52     .class_init    = realview_gic_class_init,
  53 };
  54
  55 static void realview_gic_register_types(void)
  56 {
  57     type_register_static(&realview_gic_info);
  58 }
  59
  60 type_init(realview_gic_register_types)