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