From: Joel Stanley <j...@jms.id.au> This adds the base for a machine model of the BBC micro:bit:
https://en.wikipedia.org/wiki/Micro_Bit This is a system with a nRF51 SoC containing the main processor, with various peripherals on board. Reviewed-by: Stefan Hajnoczi <stefa...@redhat.com> Signed-off-by: Joel Stanley <j...@jms.id.au> Message-id: 20180831220920.27113-4-j...@jms.id.au Reviewed-by: Peter Maydell <peter.mayd...@linaro.org> Signed-off-by: Peter Maydell <peter.mayd...@linaro.org> --- hw/arm/Makefile.objs | 2 +- hw/arm/microbit.c | 67 ++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 68 insertions(+), 1 deletion(-) create mode 100644 hw/arm/microbit.c diff --git a/hw/arm/Makefile.objs b/hw/arm/Makefile.objs index ae4e20373b9..5f88062c666 100644 --- a/hw/arm/Makefile.objs +++ b/hw/arm/Makefile.objs @@ -37,4 +37,4 @@ obj-$(CONFIG_IOTKIT) += iotkit.o obj-$(CONFIG_FSL_IMX7) += fsl-imx7.o mcimx7d-sabre.o obj-$(CONFIG_ARM_SMMUV3) += smmu-common.o smmuv3.o obj-$(CONFIG_FSL_IMX6UL) += fsl-imx6ul.o mcimx6ul-evk.o -obj-$(CONFIG_NRF51_SOC) += nrf51_soc.o +obj-$(CONFIG_NRF51_SOC) += nrf51_soc.o microbit.o diff --git a/hw/arm/microbit.c b/hw/arm/microbit.c new file mode 100644 index 00000000000..e7d74116a50 --- /dev/null +++ b/hw/arm/microbit.c @@ -0,0 +1,67 @@ +/* + * BBC micro:bit machine + * http://tech.microbit.org/hardware/ + * + * Copyright 2018 Joel Stanley <j...@jms.id.au> + * + * This code is licensed under the GPL version 2 or later. See + * the COPYING file in the top-level directory. + */ + +#include "qemu/osdep.h" +#include "qapi/error.h" +#include "hw/boards.h" +#include "hw/arm/arm.h" +#include "exec/address-spaces.h" + +#include "hw/arm/nrf51_soc.h" + +typedef struct { + MachineState parent; + + NRF51State nrf51; +} MicrobitMachineState; + +#define TYPE_MICROBIT_MACHINE MACHINE_TYPE_NAME("microbit") + +#define MICROBIT_MACHINE(obj) \ + OBJECT_CHECK(MicrobitMachineState, obj, TYPE_MICROBIT_MACHINE) + +static void microbit_init(MachineState *machine) +{ + MicrobitMachineState *s = MICROBIT_MACHINE(machine); + MemoryRegion *system_memory = get_system_memory(); + Object *soc = OBJECT(&s->nrf51); + + sysbus_init_child_obj(OBJECT(machine), "nrf51", soc, sizeof(s->nrf51), + TYPE_NRF51_SOC); + object_property_set_link(soc, OBJECT(system_memory), "memory", + &error_fatal); + object_property_set_bool(soc, true, "realized", &error_fatal); + + armv7m_load_kernel(ARM_CPU(first_cpu), machine->kernel_filename, + NRF51_SOC(soc)->flash_size); +} + +static void microbit_machine_class_init(ObjectClass *oc, void *data) +{ + MachineClass *mc = MACHINE_CLASS(oc); + + mc->desc = "BBC micro:bit"; + mc->init = microbit_init; + mc->max_cpus = 1; +} + +static const TypeInfo microbit_info = { + .name = TYPE_MICROBIT_MACHINE, + .parent = TYPE_MACHINE, + .instance_size = sizeof(MicrobitMachineState), + .class_init = microbit_machine_class_init, +}; + +static void microbit_machine_init(void) +{ + type_register_static(µbit_info); +} + +type_init(microbit_machine_init); -- 2.19.0
