2 * Raspberry Pi emulation (c) 2012 Gregory Estrade
3 * Upstreaming code cleanup [including bcm2835_*] (c) 2013 Jan Petrous
5 * Rasperry Pi 2 emulation and refactoring Copyright (c) 2015, Microsoft
6 * Written by Andrew Baumann
8 * This code is licensed under the GNU GPLv2 and later.
11 #include "qemu/osdep.h"
12 #include "qapi/error.h"
13 #include "qemu-common.h"
15 #include "hw/arm/bcm2836.h"
16 #include "hw/arm/raspi_platform.h"
17 #include "hw/sysbus.h"
19 /* Peripheral base address seen by the CPU */
20 #define BCM2836_PERI_BASE 0x3F000000
22 /* "QA7" (Pi2) interrupt controller and mailboxes etc. */
23 #define BCM2836_CONTROL_BASE 0x40000000
31 static const BCM283XInfo bcm283x_socs
[] = {
34 .cpu_type
= ARM_CPU_TYPE_NAME("cortex-a7"),
40 .cpu_type
= ARM_CPU_TYPE_NAME("cortex-a53"),
46 static void bcm2836_init(Object
*obj
)
48 BCM283XState
*s
= BCM283X(obj
);
49 BCM283XClass
*bc
= BCM283X_GET_CLASS(obj
);
50 const BCM283XInfo
*info
= bc
->info
;
53 for (n
= 0; n
< BCM283X_NCPUS
; n
++) {
54 object_initialize(&s
->cpus
[n
], sizeof(s
->cpus
[n
]),
56 object_property_add_child(obj
, "cpu[*]", OBJECT(&s
->cpus
[n
]),
60 object_initialize(&s
->control
, sizeof(s
->control
), TYPE_BCM2836_CONTROL
);
61 object_property_add_child(obj
, "control", OBJECT(&s
->control
), NULL
);
62 qdev_set_parent_bus(DEVICE(&s
->control
), sysbus_get_default());
64 object_initialize(&s
->peripherals
, sizeof(s
->peripherals
),
65 TYPE_BCM2835_PERIPHERALS
);
66 object_property_add_child(obj
, "peripherals", OBJECT(&s
->peripherals
),
68 object_property_add_alias(obj
, "board-rev", OBJECT(&s
->peripherals
),
69 "board-rev", &error_abort
);
70 object_property_add_alias(obj
, "vcram-size", OBJECT(&s
->peripherals
),
71 "vcram-size", &error_abort
);
72 qdev_set_parent_bus(DEVICE(&s
->peripherals
), sysbus_get_default());
75 static void bcm2836_realize(DeviceState
*dev
, Error
**errp
)
77 BCM283XState
*s
= BCM283X(dev
);
78 BCM283XClass
*bc
= BCM283X_GET_CLASS(dev
);
79 const BCM283XInfo
*info
= bc
->info
;
84 /* common peripherals from bcm2835 */
86 obj
= object_property_get_link(OBJECT(dev
), "ram", &err
);
88 error_setg(errp
, "%s: required ram link not found: %s",
89 __func__
, error_get_pretty(err
));
93 object_property_add_const_link(OBJECT(&s
->peripherals
), "ram", obj
, &err
);
95 error_propagate(errp
, err
);
99 object_property_set_bool(OBJECT(&s
->peripherals
), true, "realized", &err
);
101 error_propagate(errp
, err
);
105 object_property_add_alias(OBJECT(s
), "sd-bus", OBJECT(&s
->peripherals
),
108 error_propagate(errp
, err
);
112 sysbus_mmio_map_overlap(SYS_BUS_DEVICE(&s
->peripherals
), 0,
113 BCM2836_PERI_BASE
, 1);
115 /* bcm2836 interrupt controller (and mailboxes, etc.) */
116 object_property_set_bool(OBJECT(&s
->control
), true, "realized", &err
);
118 error_propagate(errp
, err
);
122 sysbus_mmio_map(SYS_BUS_DEVICE(&s
->control
), 0, BCM2836_CONTROL_BASE
);
124 sysbus_connect_irq(SYS_BUS_DEVICE(&s
->peripherals
), 0,
125 qdev_get_gpio_in_named(DEVICE(&s
->control
), "gpu-irq", 0));
126 sysbus_connect_irq(SYS_BUS_DEVICE(&s
->peripherals
), 1,
127 qdev_get_gpio_in_named(DEVICE(&s
->control
), "gpu-fiq", 0));
129 for (n
= 0; n
< BCM283X_NCPUS
; n
++) {
130 /* TODO: this should be converted to a property of ARM_CPU */
131 s
->cpus
[n
].mp_affinity
= (info
->clusterid
<< 8) | n
;
133 /* set periphbase/CBAR value for CPU-local registers */
134 object_property_set_int(OBJECT(&s
->cpus
[n
]),
135 BCM2836_PERI_BASE
+ MCORE_OFFSET
,
138 error_propagate(errp
, err
);
142 /* start powered off if not enabled */
143 object_property_set_bool(OBJECT(&s
->cpus
[n
]), n
>= s
->enabled_cpus
,
144 "start-powered-off", &err
);
146 error_propagate(errp
, err
);
150 object_property_set_bool(OBJECT(&s
->cpus
[n
]), true, "realized", &err
);
152 error_propagate(errp
, err
);
156 /* Connect irq/fiq outputs from the interrupt controller. */
157 qdev_connect_gpio_out_named(DEVICE(&s
->control
), "irq", n
,
158 qdev_get_gpio_in(DEVICE(&s
->cpus
[n
]), ARM_CPU_IRQ
));
159 qdev_connect_gpio_out_named(DEVICE(&s
->control
), "fiq", n
,
160 qdev_get_gpio_in(DEVICE(&s
->cpus
[n
]), ARM_CPU_FIQ
));
162 /* Connect timers from the CPU to the interrupt controller */
163 qdev_connect_gpio_out(DEVICE(&s
->cpus
[n
]), GTIMER_PHYS
,
164 qdev_get_gpio_in_named(DEVICE(&s
->control
), "cntpnsirq", n
));
165 qdev_connect_gpio_out(DEVICE(&s
->cpus
[n
]), GTIMER_VIRT
,
166 qdev_get_gpio_in_named(DEVICE(&s
->control
), "cntvirq", n
));
167 qdev_connect_gpio_out(DEVICE(&s
->cpus
[n
]), GTIMER_HYP
,
168 qdev_get_gpio_in_named(DEVICE(&s
->control
), "cnthpirq", n
));
169 qdev_connect_gpio_out(DEVICE(&s
->cpus
[n
]), GTIMER_SEC
,
170 qdev_get_gpio_in_named(DEVICE(&s
->control
), "cntpsirq", n
));
174 static Property bcm2836_props
[] = {
175 DEFINE_PROP_UINT32("enabled-cpus", BCM283XState
, enabled_cpus
,
177 DEFINE_PROP_END_OF_LIST()
180 static void bcm283x_class_init(ObjectClass
*oc
, void *data
)
182 DeviceClass
*dc
= DEVICE_CLASS(oc
);
183 BCM283XClass
*bc
= BCM283X_CLASS(oc
);
186 dc
->realize
= bcm2836_realize
;
187 dc
->props
= bcm2836_props
;
190 static const TypeInfo bcm283x_type_info
= {
191 .name
= TYPE_BCM283X
,
192 .parent
= TYPE_DEVICE
,
193 .instance_size
= sizeof(BCM283XState
),
194 .instance_init
= bcm2836_init
,
195 .class_size
= sizeof(BCM283XClass
),
199 static void bcm2836_register_types(void)
203 type_register_static(&bcm283x_type_info
);
204 for (i
= 0; i
< ARRAY_SIZE(bcm283x_socs
); i
++) {
206 .name
= bcm283x_socs
[i
].name
,
207 .parent
= TYPE_BCM283X
,
208 .class_init
= bcm283x_class_init
,
209 .class_data
= (void *) &bcm283x_socs
[i
],
215 type_init(bcm2836_register_types
)