diff options
| author | Julia Suvorova <jusual@mail.ru> | 2018-10-30 15:23:56 +0000 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2018-11-02 14:03:33 +0000 |
| commit | b0014913f2e415abe3434dec7ad7ce20afb491cd (patch) | |
| tree | 485a0d8e585a2f279b5dc23a4bcab07f7445e758 /hw/arm | |
| parent | 19790847e25c7e82bba9eb13d82894506eeabe09 (diff) | |
| download | qemu-b0014913f2e415abe3434dec7ad7ce20afb491cd.zip | |
hw/arm/nrf51_soc: Connect UART to nRF51 SoC
Wire up nRF51 UART in the corresponding SoC.
Signed-off-by: Julia Suvorova <jusual@mail.ru>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'hw/arm')
| -rw-r--r-- | hw/arm/microbit.c | 2 | ||||
| -rw-r--r-- | hw/arm/nrf51_soc.c | 20 |
2 files changed, 22 insertions, 0 deletions
diff --git a/hw/arm/microbit.c b/hw/arm/microbit.c index e7d74116a5..a734e7f650 100644 --- a/hw/arm/microbit.c +++ b/hw/arm/microbit.c @@ -12,6 +12,7 @@ #include "qapi/error.h" #include "hw/boards.h" #include "hw/arm/arm.h" +#include "sysemu/sysemu.h" #include "exec/address-spaces.h" #include "hw/arm/nrf51_soc.h" @@ -35,6 +36,7 @@ static void microbit_init(MachineState *machine) sysbus_init_child_obj(OBJECT(machine), "nrf51", soc, sizeof(s->nrf51), TYPE_NRF51_SOC); + qdev_prop_set_chr(DEVICE(&s->nrf51), "serial0", serial_hd(0)); object_property_set_link(soc, OBJECT(system_memory), "memory", &error_fatal); object_property_set_bool(soc, true, "realized", &error_fatal); diff --git a/hw/arm/nrf51_soc.c b/hw/arm/nrf51_soc.c index 1a59ef4552..b89c1bdea0 100644 --- a/hw/arm/nrf51_soc.c +++ b/hw/arm/nrf51_soc.c @@ -43,9 +43,12 @@ #define NRF51822_FLASH_SIZE (256 * 1024) #define NRF51822_SRAM_SIZE (16 * 1024) +#define BASE_TO_IRQ(base) ((base >> 12) & 0x1F) + static void nrf51_soc_realize(DeviceState *dev_soc, Error **errp) { NRF51State *s = NRF51_SOC(dev_soc); + MemoryRegion *mr; Error *err = NULL; if (!s->board_memory) { @@ -82,6 +85,18 @@ static void nrf51_soc_realize(DeviceState *dev_soc, Error **errp) } memory_region_add_subregion(&s->container, SRAM_BASE, &s->sram); + /* UART */ + object_property_set_bool(OBJECT(&s->uart), true, "realized", &err); + if (err) { + error_propagate(errp, err); + return; + } + mr = sysbus_mmio_get_region(SYS_BUS_DEVICE(&s->uart), 0); + memory_region_add_subregion_overlap(&s->container, UART_BASE, mr, 0); + sysbus_connect_irq(SYS_BUS_DEVICE(&s->uart), 0, + qdev_get_gpio_in(DEVICE(&s->cpu), + BASE_TO_IRQ(UART_BASE))); + create_unimplemented_device("nrf51_soc.io", IOMEM_BASE, IOMEM_SIZE); create_unimplemented_device("nrf51_soc.ficr", FICR_BASE, FICR_SIZE); create_unimplemented_device("nrf51_soc.private", @@ -99,6 +114,11 @@ static void nrf51_soc_init(Object *obj) qdev_prop_set_string(DEVICE(&s->cpu), "cpu-type", ARM_CPU_TYPE_NAME("cortex-m0")); qdev_prop_set_uint32(DEVICE(&s->cpu), "num-irq", 32); + + sysbus_init_child_obj(obj, "uart", &s->uart, sizeof(s->uart), + TYPE_NRF51_UART); + object_property_add_alias(obj, "serial0", OBJECT(&s->uart), "chardev", + &error_abort); } static Property nrf51_soc_properties[] = { |