Re: [Qemu-devel] [PATCH v1 5/5] hw/arm: Add the Netduino Plus 2

[Peter Maydell <peter.maydell@linaro.org>]

On Thu, 2 May 2019 at 06:41, Alistair Francis <alistair@alistair23.me> wrote:
>
> Signed-off-by: Alistair Francis <alistair@alistair23.me>
> ---
>  MAINTAINERS                     |  6 +++
>  default-configs/arm-softmmu.mak |  1 +
>  hw/arm/Kconfig                  |  3 ++
>  hw/arm/Makefile.objs            |  1 +
>  hw/arm/netduinoplus2.c          | 77 +++++++++++++++++++++++++++++++++
>  5 files changed, 88 insertions(+)
>  create mode 100644 hw/arm/netduinoplus2.c

> +static void netduinoplus2_init(MachineState *machine)
> +{
> +    DeviceState *dev;
> +    ARMV7MResetArgs reset_args;
> +    uint64_t entry;
> +
> +    dev = qdev_create(NULL, TYPE_STM32F405_SOC);
> +    qdev_prop_set_string(dev, "cpu-type", ARM_CPU_TYPE_NAME("cortex-m4"));
> +    object_property_set_bool(OBJECT(dev), true, "realized", &error_fatal);
> +
> +    entry = armv7m_load_kernel(ARM_CPU(first_cpu), machine->kernel_filename,
> +                       FLASH_SIZE);
> +
> +    reset_args = (ARMV7MResetArgs) {
> +        .cpu = ARM_CPU(first_cpu),
> +        .reset_pc = entry,
> +        .reset_sp = (SRAM_BASE_ADDRESS + (SRAM_SIZE * 2) / 3),
> +    };
> +    qemu_register_reset(armv7m_reset,
> +                        g_memdup(&reset_args, sizeof(reset_args)));
> +}

I still don't really like having this board interpret -kernel
in a different way to all the other M-profile boards. I'd be
much happier if it just behaved the same way the others do.

thanks
-- PMM