xref: /openbmc/qemu/hw/arm/netduino2.c (revision 05caa062)
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 
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 
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