2 * ARM RealView Emulation Baseboard Interrupt Controller
4 * Copyright (c) 2006-2007 CodeSourcery.
5 * Written by Paul Brook
7 * This code is licensed under the GPL.
10 #include "hw/sysbus.h"
15 MemoryRegion container
;
18 static void realview_gic_set_irq(void *opaque
, int irq
, int level
)
20 RealViewGICState
*s
= (RealViewGICState
*)opaque
;
21 qemu_set_irq(qdev_get_gpio_in(s
->gic
, irq
), level
);
24 static int realview_gic_init(SysBusDevice
*dev
)
26 RealViewGICState
*s
= FROM_SYSBUS(RealViewGICState
, dev
);
28 /* The GICs on the RealView boards have a fixed nonconfigurable
29 * number of interrupt lines, so we don't need to expose this as
34 s
->gic
= qdev_create(NULL
, "arm_gic");
35 qdev_prop_set_uint32(s
->gic
, "num-cpu", 1);
36 qdev_prop_set_uint32(s
->gic
, "num-irq", numirq
);
37 qdev_init_nofail(s
->gic
);
38 busdev
= SYS_BUS_DEVICE(s
->gic
);
40 /* Pass through outbound IRQ lines from the GIC */
41 sysbus_pass_irq(dev
, busdev
);
43 /* Pass through inbound GPIO lines to the GIC */
44 qdev_init_gpio_in(&s
->busdev
.qdev
, realview_gic_set_irq
, numirq
- 32);
46 memory_region_init(&s
->container
, OBJECT(s
),
47 "realview-gic-container", 0x2000);
48 memory_region_add_subregion(&s
->container
, 0,
49 sysbus_mmio_get_region(busdev
, 1));
50 memory_region_add_subregion(&s
->container
, 0x1000,
51 sysbus_mmio_get_region(busdev
, 0));
52 sysbus_init_mmio(dev
, &s
->container
);
56 static void realview_gic_class_init(ObjectClass
*klass
, void *data
)
58 SysBusDeviceClass
*sdc
= SYS_BUS_DEVICE_CLASS(klass
);
60 sdc
->init
= realview_gic_init
;
63 static const TypeInfo realview_gic_info
= {
64 .name
= "realview_gic",
65 .parent
= TYPE_SYS_BUS_DEVICE
,
66 .instance_size
= sizeof(RealViewGICState
),
67 .class_init
= realview_gic_class_init
,
70 static void realview_gic_register_types(void)
72 type_register_static(&realview_gic_info
);
75 type_init(realview_gic_register_types
)