1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
|
/*
* B-L475E-IOT01A Discovery Kit machine
* (B-L475E-IOT01A IoT Node)
*
* Copyright (c) 2023-2024 Arnaud Minier <arnaud.minier@telecom-paris.fr>
* Copyright (c) 2023-2024 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 */
#define TYPE_B_L475E_IOT01A MACHINE_TYPE_NAME("b-l475e-iot01a")
OBJECT_DECLARE_SIMPLE_TYPE(Bl475eMachineState, B_L475E_IOT01A)
typedef struct Bl475eMachineState {
MachineState parent_obj;
Stm32l4x5SocState soc;
} Bl475eMachineState;
static void bl475e_init(MachineState *machine)
{
Bl475eMachineState *s = B_L475E_IOT01A(machine);
const Stm32l4x5SocClass *sc;
object_initialize_child(OBJECT(machine), "soc", &s->soc,
TYPE_STM32L4X5XG_SOC);
sysbus_realize(SYS_BUS_DEVICE(&s->soc), &error_fatal);
sc = STM32L4X5_SOC_GET_CLASS(&s->soc);
armv7m_load_kernel(ARM_CPU(first_cpu), machine->kernel_filename, 0,
sc->flash_size);
}
static void bl475e_machine_init(ObjectClass *oc, void *data)
{
MachineClass *mc = MACHINE_CLASS(oc);
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 = bl475e_init;
mc->valid_cpu_types = machine_valid_cpu_types;
/* SRAM pre-allocated as part of the SoC instantiation */
mc->default_ram_size = 0;
}
static const TypeInfo bl475e_machine_type[] = {
{
.name = TYPE_B_L475E_IOT01A,
.parent = TYPE_MACHINE,
.instance_size = sizeof(Bl475eMachineState),
.class_init = bl475e_machine_init,
}
};
DEFINE_TYPES(bl475e_machine_type)
|
