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9c219b7b AF |
1 | /* |
2 | * RealView ARM11MPCore internal peripheral emulation | |
3 | * | |
4 | * Copyright (c) 2006-2007 CodeSourcery. | |
5 | * Copyright (c) 2013 SUSE LINUX Products GmbH | |
6 | * Written by Paul Brook and Andreas Färber | |
7 | * | |
8 | * This code is licensed under the GPL. | |
9 | */ | |
10 | ||
17b7f2db | 11 | #include "qemu/osdep.h" |
da34e65c | 12 | #include "qapi/error.h" |
9c219b7b AF |
13 | #include "hw/cpu/arm11mpcore.h" |
14 | #include "hw/intc/realview_gic.h" | |
15 | ||
16 | #define TYPE_REALVIEW_MPCORE_RIRQ "realview_mpcore" | |
17 | #define REALVIEW_MPCORE_RIRQ(obj) \ | |
18 | OBJECT_CHECK(mpcore_rirq_state, (obj), TYPE_REALVIEW_MPCORE_RIRQ) | |
19 | ||
20 | /* Dummy PIC to route IRQ lines. The baseboard has 4 independent IRQ | |
21 | controllers. The output of these, plus some of the raw input lines | |
22 | are fed into a single SMP-aware interrupt controller on the CPU. */ | |
23 | typedef struct { | |
24 | SysBusDevice parent_obj; | |
25 | ||
26 | qemu_irq cpuic[32]; | |
27 | qemu_irq rvic[4][64]; | |
28 | uint32_t num_cpu; | |
29 | ||
30 | ARM11MPCorePriveState priv; | |
31 | RealViewGICState gic[4]; | |
32 | } mpcore_rirq_state; | |
33 | ||
34 | /* Map baseboard IRQs onto CPU IRQ lines. */ | |
35 | static const int mpcore_irq_map[32] = { | |
36 | -1, -1, -1, -1, 1, 2, -1, -1, | |
37 | -1, -1, 6, -1, 4, 5, -1, -1, | |
38 | -1, 14, 15, 0, 7, 8, -1, -1, | |
39 | -1, -1, -1, -1, 9, 3, -1, -1, | |
40 | }; | |
41 | ||
42 | static void mpcore_rirq_set_irq(void *opaque, int irq, int level) | |
43 | { | |
44 | mpcore_rirq_state *s = (mpcore_rirq_state *)opaque; | |
45 | int i; | |
46 | ||
47 | for (i = 0; i < 4; i++) { | |
48 | qemu_set_irq(s->rvic[i][irq], level); | |
49 | } | |
50 | if (irq < 32) { | |
51 | irq = mpcore_irq_map[irq]; | |
52 | if (irq >= 0) { | |
53 | qemu_set_irq(s->cpuic[irq], level); | |
54 | } | |
55 | } | |
56 | } | |
57 | ||
58 | static void realview_mpcore_realize(DeviceState *dev, Error **errp) | |
59 | { | |
60 | SysBusDevice *sbd = SYS_BUS_DEVICE(dev); | |
61 | mpcore_rirq_state *s = REALVIEW_MPCORE_RIRQ(dev); | |
62 | DeviceState *priv = DEVICE(&s->priv); | |
63 | DeviceState *gic; | |
64 | SysBusDevice *gicbusdev; | |
65 | Error *err = NULL; | |
66 | int n; | |
67 | int i; | |
68 | ||
69 | qdev_prop_set_uint32(priv, "num-cpu", s->num_cpu); | |
70 | object_property_set_bool(OBJECT(&s->priv), true, "realized", &err); | |
71 | if (err != NULL) { | |
72 | error_propagate(errp, err); | |
73 | return; | |
74 | } | |
75 | sysbus_pass_irq(sbd, SYS_BUS_DEVICE(&s->priv)); | |
76 | for (i = 0; i < 32; i++) { | |
77 | s->cpuic[i] = qdev_get_gpio_in(priv, i); | |
78 | } | |
79 | /* ??? IRQ routing is hardcoded to "normal" mode. */ | |
80 | for (n = 0; n < 4; n++) { | |
81 | object_property_set_bool(OBJECT(&s->gic[n]), true, "realized", &err); | |
82 | if (err != NULL) { | |
83 | error_propagate(errp, err); | |
84 | return; | |
85 | } | |
86 | gic = DEVICE(&s->gic[n]); | |
87 | gicbusdev = SYS_BUS_DEVICE(&s->gic[n]); | |
88 | sysbus_mmio_map(gicbusdev, 0, 0x10040000 + n * 0x10000); | |
89 | sysbus_connect_irq(gicbusdev, 0, s->cpuic[10 + n]); | |
90 | for (i = 0; i < 64; i++) { | |
91 | s->rvic[n][i] = qdev_get_gpio_in(gic, i); | |
92 | } | |
93 | } | |
94 | qdev_init_gpio_in(dev, mpcore_rirq_set_irq, 64); | |
95 | } | |
96 | ||
97 | static void mpcore_rirq_init(Object *obj) | |
98 | { | |
99 | SysBusDevice *sbd = SYS_BUS_DEVICE(obj); | |
100 | mpcore_rirq_state *s = REALVIEW_MPCORE_RIRQ(obj); | |
101 | SysBusDevice *privbusdev; | |
102 | int i; | |
103 | ||
104 | object_initialize(&s->priv, sizeof(s->priv), TYPE_ARM11MPCORE_PRIV); | |
105 | qdev_set_parent_bus(DEVICE(&s->priv), sysbus_get_default()); | |
106 | privbusdev = SYS_BUS_DEVICE(&s->priv); | |
107 | sysbus_init_mmio(sbd, sysbus_mmio_get_region(privbusdev, 0)); | |
108 | ||
109 | for (i = 0; i < 4; i++) { | |
110 | object_initialize(&s->gic[i], sizeof(s->gic[i]), TYPE_REALVIEW_GIC); | |
111 | qdev_set_parent_bus(DEVICE(&s->gic[i]), sysbus_get_default()); | |
112 | } | |
113 | } | |
114 | ||
115 | static Property mpcore_rirq_properties[] = { | |
116 | DEFINE_PROP_UINT32("num-cpu", mpcore_rirq_state, num_cpu, 1), | |
117 | DEFINE_PROP_END_OF_LIST(), | |
118 | }; | |
119 | ||
120 | static void mpcore_rirq_class_init(ObjectClass *klass, void *data) | |
121 | { | |
122 | DeviceClass *dc = DEVICE_CLASS(klass); | |
123 | ||
124 | dc->realize = realview_mpcore_realize; | |
125 | dc->props = mpcore_rirq_properties; | |
126 | } | |
127 | ||
128 | static const TypeInfo mpcore_rirq_info = { | |
129 | .name = TYPE_REALVIEW_MPCORE_RIRQ, | |
130 | .parent = TYPE_SYS_BUS_DEVICE, | |
131 | .instance_size = sizeof(mpcore_rirq_state), | |
132 | .instance_init = mpcore_rirq_init, | |
133 | .class_init = mpcore_rirq_class_init, | |
134 | }; | |
135 | ||
136 | static void realview_mpcore_register_types(void) | |
137 | { | |
138 | type_register_static(&mpcore_rirq_info); | |
139 | } | |
140 | ||
141 | type_init(realview_mpcore_register_types) |