1 /* 2 * BBC micro:bit machine 3 * http://tech.microbit.org/hardware/ 4 * 5 * Copyright 2018 Joel Stanley <joel@jms.id.au> 6 * 7 * This code is licensed under the GPL version 2 or later. See 8 * the COPYING file in the top-level directory. 9 */ 10 11 #include "qemu/osdep.h" 12 #include "qapi/error.h" 13 #include "hw/boards.h" 14 #include "hw/arm/arm.h" 15 #include "sysemu/sysemu.h" 16 #include "exec/address-spaces.h" 17 18 #include "hw/arm/nrf51_soc.h" 19 20 typedef struct { 21 MachineState parent; 22 23 NRF51State nrf51; 24 } MicrobitMachineState; 25 26 #define TYPE_MICROBIT_MACHINE MACHINE_TYPE_NAME("microbit") 27 28 #define MICROBIT_MACHINE(obj) \ 29 OBJECT_CHECK(MicrobitMachineState, obj, TYPE_MICROBIT_MACHINE) 30 31 static void microbit_init(MachineState *machine) 32 { 33 MicrobitMachineState *s = MICROBIT_MACHINE(machine); 34 MemoryRegion *system_memory = get_system_memory(); 35 Object *soc = OBJECT(&s->nrf51); 36 37 sysbus_init_child_obj(OBJECT(machine), "nrf51", soc, sizeof(s->nrf51), 38 TYPE_NRF51_SOC); 39 qdev_prop_set_chr(DEVICE(&s->nrf51), "serial0", serial_hd(0)); 40 object_property_set_link(soc, OBJECT(system_memory), "memory", 41 &error_fatal); 42 object_property_set_bool(soc, true, "realized", &error_fatal); 43 44 armv7m_load_kernel(ARM_CPU(first_cpu), machine->kernel_filename, 45 NRF51_SOC(soc)->flash_size); 46 } 47 48 static void microbit_machine_class_init(ObjectClass *oc, void *data) 49 { 50 MachineClass *mc = MACHINE_CLASS(oc); 51 52 mc->desc = "BBC micro:bit"; 53 mc->init = microbit_init; 54 mc->max_cpus = 1; 55 } 56 57 static const TypeInfo microbit_info = { 58 .name = TYPE_MICROBIT_MACHINE, 59 .parent = TYPE_MACHINE, 60 .instance_size = sizeof(MicrobitMachineState), 61 .class_init = microbit_machine_class_init, 62 }; 63 64 static void microbit_machine_init(void) 65 { 66 type_register_static(µbit_info); 67 } 68 69 type_init(microbit_machine_init); 70