hw/arm/olimex-stm32-h405.c

   1 /*
   2  * ST STM32VLDISCOVERY machine
   3  * Olimex STM32-H405 machine
   4  *
   5  * Copyright (c) 2022 Felipe Balbi <balbi@kernel.org>
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a copy
   8  * of this software and associated documentation files (the "Software"), to deal
   9  * in the Software without restriction, including without limitation the rights
  10  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  11  * copies of the Software, and to permit persons to whom the Software is
  12  * furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice shall be included in
  15  * all copies or substantial portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  22  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  23  * THE SOFTWARE.
  24  */
  25
  26 #include "qemu/osdep.h"
  27 #include "qapi/error.h"
  28 #include "hw/boards.h"
  29 #include "hw/qdev-properties.h"
  30 #include "hw/qdev-clock.h"
  31 #include "qemu/error-report.h"
  32 #include "hw/arm/stm32f405_soc.h"
  33 #include "hw/arm/boot.h"
  34
  35 /* olimex-stm32-h405 implementation is derived from netduinoplus2 */
  36
  37 /* Main SYSCLK frequency in Hz (168MHz) */
  38 #define SYSCLK_FRQ 168000000ULL
  39
  40 static void olimex_stm32_h405_init(MachineState *machine)
  41 {
  42     DeviceState *dev;
  43     Clock *sysclk;
  44
  45     /* This clock doesn't need migration because it is fixed-frequency */
  46     sysclk = clock_new(OBJECT(machine), "SYSCLK");
  47     clock_set_hz(sysclk, SYSCLK_FRQ);
  48
  49     dev = qdev_new(TYPE_STM32F405_SOC);
  50     qdev_prop_set_string(dev, "cpu-type", ARM_CPU_TYPE_NAME("cortex-m4"));
  51     qdev_connect_clock_in(dev, "sysclk", sysclk);
  52     sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
  53
  54     armv7m_load_kernel(ARM_CPU(first_cpu),
  55                        machine->kernel_filename,
  56                        0, FLASH_SIZE);
  57 }
  58
  59 static void olimex_stm32_h405_machine_init(MachineClass *mc)
  60 {
  61     mc->desc = "Olimex STM32-H405 (Cortex-M4)";
  62     mc->init = olimex_stm32_h405_init;
  63     mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-m4");
  64
  65     /* SRAM pre-allocated as part of the SoC instantiation */
  66     mc->default_ram_size = 0;
  67 }
  68
  69 DEFINE_MACHINE("olimex-stm32-h405", olimex_stm32_h405_machine_init)