1 /*
2 * Netduino 2 Machine Model
3 *
4 * Copyright (c) 2014 Alistair Francis <alistair@alistair23.me>
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
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 "hw/qdev-clock.h"
30 #include "qemu/error-report.h"
31 #include "hw/arm/stm32f205_soc.h"
32 #include "hw/arm/boot.h"
33
34 /* Main SYSCLK frequency in Hz (120MHz) */
35 #define SYSCLK_FRQ 120000000ULL
36
netduino2_init(MachineState * machine)37 static void netduino2_init(MachineState *machine)
38 {
39 DeviceState *dev;
40 Clock *sysclk;
41
42 /* This clock doesn't need migration because it is fixed-frequency */
43 sysclk = clock_new(OBJECT(machine), "SYSCLK");
44 clock_set_hz(sysclk, SYSCLK_FRQ);
45
46 dev = qdev_new(TYPE_STM32F205_SOC);
47 object_property_add_child(OBJECT(machine), "soc", OBJECT(dev));
48 qdev_connect_clock_in(dev, "sysclk", sysclk);
49 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
50
51 armv7m_load_kernel(ARM_CPU(first_cpu), machine->kernel_filename,
52 0, FLASH_SIZE);
53 }
54
netduino2_machine_init(MachineClass * mc)55 static void netduino2_machine_init(MachineClass *mc)
56 {
57 static const char * const valid_cpu_types[] = {
58 ARM_CPU_TYPE_NAME("cortex-m3"),
59 NULL
60 };
61
62 mc->desc = "Netduino 2 Machine (Cortex-M3)";
63 mc->init = netduino2_init;
64 mc->valid_cpu_types = valid_cpu_types;
65 mc->ignore_memory_transaction_failures = true;
66 }
67
68 DEFINE_MACHINE("netduino2", netduino2_machine_init)
69