1 /* 2 * B-L475E-IOT01A Discovery Kit machine 3 * (B-L475E-IOT01A IoT Node) 4 * 5 * Copyright (c) 2023 Arnaud Minier <arnaud.minier@telecom-paris.fr> 6 * Copyright (c) 2023 Inès Varhol <ines.varhol@telecom-paris.fr> 7 * 8 * SPDX-License-Identifier: GPL-2.0-or-later 9 * 10 * This work is licensed under the terms of the GNU GPL, version 2 or later. 11 * See the COPYING file in the top-level directory. 12 * 13 * This work is heavily inspired by the netduinoplus2 by Alistair Francis. 14 * Original code is licensed under the MIT License: 15 * 16 * Copyright (c) 2014 Alistair Francis <alistair@alistair23.me> 17 */ 18 19 /* 20 * The reference used is the STMicroElectronics UM2153 User manual 21 * Discovery kit for IoT node, multi-channel communication with STM32L4. 22 * https://www.st.com/en/evaluation-tools/b-l475e-iot01a.html#documentation 23 */ 24 25 #include "qemu/osdep.h" 26 #include "qapi/error.h" 27 #include "hw/boards.h" 28 #include "hw/qdev-properties.h" 29 #include "qemu/error-report.h" 30 #include "hw/arm/stm32l4x5_soc.h" 31 #include "hw/arm/boot.h" 32 33 /* B-L475E-IOT01A implementation is derived from netduinoplus2 */ 34 35 static void b_l475e_iot01a_init(MachineState *machine) 36 { 37 const Stm32l4x5SocClass *sc; 38 DeviceState *dev; 39 40 dev = qdev_new(TYPE_STM32L4X5XG_SOC); 41 object_property_add_child(OBJECT(machine), "soc", OBJECT(dev)); 42 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 43 44 sc = STM32L4X5_SOC_GET_CLASS(dev); 45 armv7m_load_kernel(ARM_CPU(first_cpu), 46 machine->kernel_filename, 47 0, sc->flash_size); 48 } 49 50 static void b_l475e_iot01a_machine_init(MachineClass *mc) 51 { 52 static const char *machine_valid_cpu_types[] = { 53 ARM_CPU_TYPE_NAME("cortex-m4"), 54 NULL 55 }; 56 mc->desc = "B-L475E-IOT01A Discovery Kit (Cortex-M4)"; 57 mc->init = b_l475e_iot01a_init; 58 mc->valid_cpu_types = machine_valid_cpu_types; 59 60 /* SRAM pre-allocated as part of the SoC instantiation */ 61 mc->default_ram_size = 0; 62 } 63 64 DEFINE_MACHINE("b-l475e-iot01a", b_l475e_iot01a_machine_init) 65