qemu/hw/arm/b-l475e-iot01a.c
Arnaud Minier 60849fe4a7 hw/arm/stm32l4x5_soc.c: Use the RCC Sysclk
Now that we can generate reliable clock frequencies from the RCC, remove
the hacky definition of the sysclk in the b_l475e_iot01a initialisation
code and use the correct RCC clock.

Signed-off-by: Arnaud Minier <arnaud.minier@telecom-paris.fr>
Signed-off-by: Inès Varhol <ines.varhol@telecom-paris.fr>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20240303140643.81957-8-arnaud.minier@telecom-paris.fr
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-03-05 13:22:56 +00:00

65 lines
2 KiB
C

/*
* B-L475E-IOT01A Discovery Kit machine
* (B-L475E-IOT01A IoT Node)
*
* Copyright (c) 2023 Arnaud Minier <arnaud.minier@telecom-paris.fr>
* Copyright (c) 2023 Inès Varhol <ines.varhol@telecom-paris.fr>
*
* SPDX-License-Identifier: GPL-2.0-or-later
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*
* This work is heavily inspired by the netduinoplus2 by Alistair Francis.
* Original code is licensed under the MIT License:
*
* Copyright (c) 2014 Alistair Francis <alistair@alistair23.me>
*/
/*
* The reference used is the STMicroElectronics UM2153 User manual
* Discovery kit for IoT node, multi-channel communication with STM32L4.
* https://www.st.com/en/evaluation-tools/b-l475e-iot01a.html#documentation
*/
#include "qemu/osdep.h"
#include "qapi/error.h"
#include "hw/boards.h"
#include "hw/qdev-properties.h"
#include "qemu/error-report.h"
#include "hw/arm/stm32l4x5_soc.h"
#include "hw/arm/boot.h"
/* B-L475E-IOT01A implementation is derived from netduinoplus2 */
static void b_l475e_iot01a_init(MachineState *machine)
{
const Stm32l4x5SocClass *sc;
DeviceState *dev;
dev = qdev_new(TYPE_STM32L4X5XG_SOC);
object_property_add_child(OBJECT(machine), "soc", OBJECT(dev));
sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
sc = STM32L4X5_SOC_GET_CLASS(dev);
armv7m_load_kernel(ARM_CPU(first_cpu),
machine->kernel_filename,
0, sc->flash_size);
}
static void b_l475e_iot01a_machine_init(MachineClass *mc)
{
static const char *machine_valid_cpu_types[] = {
ARM_CPU_TYPE_NAME("cortex-m4"),
NULL
};
mc->desc = "B-L475E-IOT01A Discovery Kit (Cortex-M4)";
mc->init = b_l475e_iot01a_init;
mc->valid_cpu_types = machine_valid_cpu_types;
/* SRAM pre-allocated as part of the SoC instantiation */
mc->default_ram_size = 0;
}
DEFINE_MACHINE("b-l475e-iot01a", b_l475e_iot01a_machine_init)