xref: /openbmc/qemu/hw/nubus/mac-nubus-bridge.c (revision e0591bf1a56fa59b787870fbdd4e5d7ca8d745d2)
1 /*
2  *  Copyright (c) 2013-2018 Laurent Vivier <laurent@vivier.eu>
3  *
4  * This work is licensed under the terms of the GNU GPL, version 2 or later.
5  * See the COPYING file in the top-level directory.
6  *
7  */
8 
9 #include "qemu/osdep.h"
10 #include "hw/sysbus.h"
11 #include "hw/nubus/mac-nubus-bridge.h"
12 
13 
14 static void mac_nubus_bridge_init(Object *obj)
15 {
16     MacNubusState *s = MAC_NUBUS_BRIDGE(obj);
17     SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
18 
19     s->bus = NUBUS_BUS(qbus_create(TYPE_NUBUS_BUS, DEVICE(s), NULL));
20 
21     /* Macintosh only has slots 0x9 to 0xe available */
22     s->bus->slot_available_mask = MAKE_64BIT_MASK(MAC_NUBUS_FIRST_SLOT,
23                                                   MAC_NUBUS_SLOT_NB);
24 
25     sysbus_init_mmio(sbd, &s->bus->super_slot_io);
26     sysbus_init_mmio(sbd, &s->bus->slot_io);
27 }
28 
29 static void mac_nubus_bridge_class_init(ObjectClass *klass, void *data)
30 {
31     DeviceClass *dc = DEVICE_CLASS(klass);
32 
33     dc->desc = "Nubus bridge";
34 }
35 
36 static const TypeInfo mac_nubus_bridge_info = {
37     .name          = TYPE_MAC_NUBUS_BRIDGE,
38     .parent        = TYPE_NUBUS_BRIDGE,
39     .instance_init = mac_nubus_bridge_init,
40     .instance_size = sizeof(MacNubusState),
41     .class_init    = mac_nubus_bridge_class_init,
42 };
43 
44 static void mac_nubus_bridge_register_types(void)
45 {
46     type_register_static(&mac_nubus_bridge_info);
47 }
48 
49 type_init(mac_nubus_bridge_register_types)
50