1 /* 2 * Netduino Plus 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/stm32f405_soc.h" 32 #include "hw/arm/boot.h" 33 34 /* Main SYSCLK frequency in Hz (168MHz) */ 35 #define SYSCLK_FRQ 168000000ULL 36 37 static void netduinoplus2_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_STM32F405_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), 52 machine->kernel_filename, 53 0, FLASH_SIZE); 54 } 55 56 static void netduinoplus2_machine_init(MachineClass *mc) 57 { 58 static const char * const valid_cpu_types[] = { 59 ARM_CPU_TYPE_NAME("cortex-m4"), 60 NULL 61 }; 62 63 mc->desc = "Netduino Plus 2 Machine (Cortex-M4)"; 64 mc->init = netduinoplus2_init; 65 mc->valid_cpu_types = valid_cpu_types; 66 } 67 68 DEFINE_MACHINE("netduinoplus2", netduinoplus2_machine_init) 69