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11#include "qemu/osdep.h"
12#include "qapi/error.h"
13#include "hw/boards.h"
14#include "hw/arm/boot.h"
15#include "sysemu/sysemu.h"
16#include "exec/address-spaces.h"
17
18#include "hw/arm/nrf51_soc.h"
19#include "hw/i2c/microbit_i2c.h"
20
21typedef struct {
22 MachineState parent;
23
24 NRF51State nrf51;
25 MicrobitI2CState i2c;
26} MicrobitMachineState;
27
28#define TYPE_MICROBIT_MACHINE MACHINE_TYPE_NAME("microbit")
29
30#define MICROBIT_MACHINE(obj) \
31 OBJECT_CHECK(MicrobitMachineState, obj, TYPE_MICROBIT_MACHINE)
32
33static void microbit_init(MachineState *machine)
34{
35 MicrobitMachineState *s = MICROBIT_MACHINE(machine);
36 MemoryRegion *system_memory = get_system_memory();
37 MemoryRegion *mr;
38 Object *soc = OBJECT(&s->nrf51);
39 Object *i2c = OBJECT(&s->i2c);
40
41 sysbus_init_child_obj(OBJECT(machine), "nrf51", soc, sizeof(s->nrf51),
42 TYPE_NRF51_SOC);
43 qdev_prop_set_chr(DEVICE(&s->nrf51), "serial0", serial_hd(0));
44 object_property_set_link(soc, OBJECT(system_memory), "memory",
45 &error_fatal);
46 object_property_set_bool(soc, true, "realized", &error_fatal);
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50
51
52
53 sysbus_init_child_obj(OBJECT(machine), "microbit.twi", i2c,
54 sizeof(s->i2c), TYPE_MICROBIT_I2C);
55 object_property_set_bool(i2c, true, "realized", &error_fatal);
56 mr = sysbus_mmio_get_region(SYS_BUS_DEVICE(i2c), 0);
57 memory_region_add_subregion_overlap(&s->nrf51.container, NRF51_TWI_BASE,
58 mr, -1);
59
60 armv7m_load_kernel(ARM_CPU(first_cpu), machine->kernel_filename,
61 NRF51_SOC(soc)->flash_size);
62}
63
64static void microbit_machine_class_init(ObjectClass *oc, void *data)
65{
66 MachineClass *mc = MACHINE_CLASS(oc);
67
68 mc->desc = "BBC micro:bit";
69 mc->init = microbit_init;
70 mc->max_cpus = 1;
71}
72
73static const TypeInfo microbit_info = {
74 .name = TYPE_MICROBIT_MACHINE,
75 .parent = TYPE_MACHINE,
76 .instance_size = sizeof(MicrobitMachineState),
77 .class_init = microbit_machine_class_init,
78};
79
80static void microbit_machine_init(void)
81{
82 type_register_static(µbit_info);
83}
84
85type_init(microbit_machine_init);
86