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From: Peter Maydell <peter.maydell@linaro.org>
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Subject: [Qemu-devel] [PULL 06/21] arm: Add BBC micro:bit machine
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From: Joel Stanley <joel@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 <stefanha@redhat.com>
Signed-off-by: Joel Stanley <joel@jms.id.au>
Message-id: 20180831220920.27113-4-joel@jms.id.au
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@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-$(CONFIG_IOTKIT) +=3D iotkit.o
obj-$(CONFIG_FSL_IMX7) +=3D fsl-imx7.o mcimx7d-sabre.o
obj-$(CONFIG_ARM_SMMUV3) +=3D smmu-common.o smmuv3.o
obj-$(CONFIG_FSL_IMX6UL) +=3D fsl-imx6ul.o mcimx6ul-evk.o
-obj-$(CONFIG_NRF51_SOC) +=3D nrf51_soc.o
+obj-$(CONFIG_NRF51_SOC) +=3D 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 <joel@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 =3D MICROBIT_MACHINE(machine);
+ MemoryRegion *system_memory =3D get_system_memory();
+ Object *soc =3D 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 =3D MACHINE_CLASS(oc);
+
+ mc->desc =3D "BBC micro:bit";
+ mc->init =3D microbit_init;
+ mc->max_cpus =3D 1;
+}
+
+static const TypeInfo microbit_info =3D {
+ .name =3D TYPE_MICROBIT_MACHINE,
+ .parent =3D TYPE_MACHINE,
+ .instance_size =3D sizeof(MicrobitMachineState),
+ .class_init =3D microbit_machine_class_init,
+};
+
+static void microbit_machine_init(void)
+{
+ type_register_static(µbit_info);
+}
+
+type_init(microbit_machine_init);
--=20
2.19.0