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 GIC_NIRQ 96
  13 #define NCPU 1
  14
  15 /* Only a single "CPU" interface is present.  */
  16 static inline int
  17 gic_get_current_cpu(void)
  18 {
  19   return 0;
  20 }
  21
  22 #include "arm_gic.c"
  23
  24 typedef struct {
  25     gic_state gic;
  26     MemoryRegion container;
  27 } RealViewGICState;
  28
  29 static void realview_gic_map_setup(RealViewGICState *s)
  30 {
  31     memory_region_init(&s->container, "realview-gic-container", 0x2000);
  32     memory_region_add_subregion(&s->container, 0, &s->gic.cpuiomem[0]);
  33     memory_region_add_subregion(&s->container, 0x1000, &s->gic.iomem);
  34 }
  35
  36 static int realview_gic_init(SysBusDevice *dev)
  37 {
  38     RealViewGICState *s = FROM_SYSBUSGIC(RealViewGICState, dev);
  39
  40     gic_init(&s->gic);
  41     realview_gic_map_setup(s);
  42     sysbus_init_mmio(dev, &s->container);
  43     return 0;
  44 }
  45
  46 static void realview_gic_register_devices(void)
  47 {
  48     sysbus_register_dev("realview_gic", sizeof(RealViewGICState),
  49                         realview_gic_init);
  50 }
  51
  52 device_init(realview_gic_register_devices)