diff options
| author | Alistair Francis <alistair.francis@wdc.com> | 2020-04-23 14:08:45 -0700 |
|---|---|---|
| committer | Alistair Francis <alistair.francis@wdc.com> | 2020-06-19 08:24:07 -0700 |
| commit | cc4112605eaf5aebbe186469eba790ac1562b3ef (patch) | |
| tree | 7ff0d2eea4162ed2fbc532367aaaba4035de179c /hw/riscv | |
| parent | b9fc51354cdc8e2623925c8fd76d7634240a28af (diff) | |
riscv/opentitan: Connect the UART device
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Diffstat (limited to 'hw/riscv')
| -rw-r--r-- | hw/riscv/opentitan.c | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/hw/riscv/opentitan.c b/hw/riscv/opentitan.c index 835b2c503f..675ce900bd 100644 --- a/hw/riscv/opentitan.c +++ b/hw/riscv/opentitan.c @@ -97,6 +97,8 @@ static void riscv_lowrisc_ibex_soc_init(Object *obj) object_initialize_child(obj, "cpus", &s->cpus, TYPE_RISCV_HART_ARRAY); object_initialize_child(obj, "plic", &s->plic, TYPE_IBEX_PLIC); + + object_initialize_child(obj, "uart", &s->uart, TYPE_IBEX_UART); } static void riscv_lowrisc_ibex_soc_realize(DeviceState *dev_soc, Error **errp) @@ -133,8 +135,27 @@ static void riscv_lowrisc_ibex_soc_realize(DeviceState *dev_soc, Error **errp) } sysbus_mmio_map(SYS_BUS_DEVICE(&s->plic), 0, memmap[IBEX_PLIC].base); - create_unimplemented_device("riscv.lowrisc.ibex.uart", - memmap[IBEX_UART].base, memmap[IBEX_UART].size); + /* UART */ + qdev_prop_set_chr(DEVICE(&(s->uart)), "chardev", serial_hd(0)); + sysbus_realize(SYS_BUS_DEVICE(&s->uart), &err); + if (err != NULL) { + error_propagate(errp, err); + return; + } + sysbus_mmio_map(SYS_BUS_DEVICE(&s->uart), 0, memmap[IBEX_UART].base); + sysbus_connect_irq(SYS_BUS_DEVICE(&s->uart), + 0, qdev_get_gpio_in(DEVICE(&s->plic), + IBEX_UART_TX_WATERMARK_IRQ)); + sysbus_connect_irq(SYS_BUS_DEVICE(&s->uart), + 1, qdev_get_gpio_in(DEVICE(&s->plic), + IBEX_UART_RX_WATERMARK_IRQ)); + sysbus_connect_irq(SYS_BUS_DEVICE(&s->uart), + 2, qdev_get_gpio_in(DEVICE(&s->plic), + IBEX_UART_TX_EMPTY_IRQ)); + sysbus_connect_irq(SYS_BUS_DEVICE(&s->uart), + 3, qdev_get_gpio_in(DEVICE(&s->plic), + IBEX_UART_RX_OVERFLOW_IRQ)); + create_unimplemented_device("riscv.lowrisc.ibex.gpio", memmap[IBEX_GPIO].base, memmap[IBEX_GPIO].size); create_unimplemented_device("riscv.lowrisc.ibex.spi", |