| /* |
| * STM32F205 SoC |
| * |
| * Copyright (c) 2014 Alistair Francis <alistair@alistair23.me> |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to deal |
| * in the Software without restriction, including without limitation the rights |
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| * copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| * THE SOFTWARE. |
| */ |
| |
| #include "qemu/osdep.h" |
| #include "qapi/error.h" |
| #include "qemu-common.h" |
| #include "hw/arm/arm.h" |
| #include "exec/address-spaces.h" |
| #include "hw/arm/stm32f205_soc.h" |
| |
| /* At the moment only Timer 2 to 5 are modelled */ |
| static const uint32_t timer_addr[STM_NUM_TIMERS] = { 0x40000000, 0x40000400, |
| 0x40000800, 0x40000C00 }; |
| static const uint32_t usart_addr[STM_NUM_USARTS] = { 0x40011000, 0x40004400, |
| 0x40004800, 0x40004C00, 0x40005000, 0x40011400 }; |
| |
| static const int timer_irq[STM_NUM_TIMERS] = {28, 29, 30, 50}; |
| static const int usart_irq[STM_NUM_USARTS] = {37, 38, 39, 52, 53, 71}; |
| |
| static void stm32f205_soc_initfn(Object *obj) |
| { |
| STM32F205State *s = STM32F205_SOC(obj); |
| int i; |
| |
| object_initialize(&s->syscfg, sizeof(s->syscfg), TYPE_STM32F2XX_SYSCFG); |
| qdev_set_parent_bus(DEVICE(&s->syscfg), sysbus_get_default()); |
| |
| for (i = 0; i < STM_NUM_USARTS; i++) { |
| object_initialize(&s->usart[i], sizeof(s->usart[i]), |
| TYPE_STM32F2XX_USART); |
| qdev_set_parent_bus(DEVICE(&s->usart[i]), sysbus_get_default()); |
| } |
| |
| for (i = 0; i < STM_NUM_TIMERS; i++) { |
| object_initialize(&s->timer[i], sizeof(s->timer[i]), |
| TYPE_STM32F2XX_TIMER); |
| qdev_set_parent_bus(DEVICE(&s->timer[i]), sysbus_get_default()); |
| } |
| } |
| |
| static void stm32f205_soc_realize(DeviceState *dev_soc, Error **errp) |
| { |
| STM32F205State *s = STM32F205_SOC(dev_soc); |
| DeviceState *syscfgdev, *usartdev, *timerdev, *nvic; |
| SysBusDevice *syscfgbusdev, *usartbusdev, *timerbusdev; |
| Error *err = NULL; |
| int i; |
| |
| MemoryRegion *system_memory = get_system_memory(); |
| MemoryRegion *sram = g_new(MemoryRegion, 1); |
| MemoryRegion *flash = g_new(MemoryRegion, 1); |
| MemoryRegion *flash_alias = g_new(MemoryRegion, 1); |
| |
| memory_region_init_ram(flash, NULL, "STM32F205.flash", FLASH_SIZE, |
| &error_fatal); |
| memory_region_init_alias(flash_alias, NULL, "STM32F205.flash.alias", |
| flash, 0, FLASH_SIZE); |
| |
| vmstate_register_ram_global(flash); |
| |
| memory_region_set_readonly(flash, true); |
| memory_region_set_readonly(flash_alias, true); |
| |
| memory_region_add_subregion(system_memory, FLASH_BASE_ADDRESS, flash); |
| memory_region_add_subregion(system_memory, 0, flash_alias); |
| |
| memory_region_init_ram(sram, NULL, "STM32F205.sram", SRAM_SIZE, |
| &error_fatal); |
| vmstate_register_ram_global(sram); |
| memory_region_add_subregion(system_memory, SRAM_BASE_ADDRESS, sram); |
| |
| nvic = armv7m_init(get_system_memory(), FLASH_SIZE, 96, |
| s->kernel_filename, s->cpu_model); |
| |
| /* System configuration controller */ |
| syscfgdev = DEVICE(&s->syscfg); |
| object_property_set_bool(OBJECT(&s->syscfg), true, "realized", &err); |
| if (err != NULL) { |
| error_propagate(errp, err); |
| return; |
| } |
| syscfgbusdev = SYS_BUS_DEVICE(syscfgdev); |
| sysbus_mmio_map(syscfgbusdev, 0, 0x40013800); |
| sysbus_connect_irq(syscfgbusdev, 0, qdev_get_gpio_in(nvic, 71)); |
| |
| /* Attach UART (uses USART registers) and USART controllers */ |
| for (i = 0; i < STM_NUM_USARTS; i++) { |
| usartdev = DEVICE(&(s->usart[i])); |
| qdev_prop_set_chr(usartdev, "chardev", i < MAX_SERIAL_PORTS ? serial_hds[i] : NULL); |
| object_property_set_bool(OBJECT(&s->usart[i]), true, "realized", &err); |
| if (err != NULL) { |
| error_propagate(errp, err); |
| return; |
| } |
| usartbusdev = SYS_BUS_DEVICE(usartdev); |
| sysbus_mmio_map(usartbusdev, 0, usart_addr[i]); |
| sysbus_connect_irq(usartbusdev, 0, |
| qdev_get_gpio_in(nvic, usart_irq[i])); |
| } |
| |
| /* Timer 2 to 5 */ |
| for (i = 0; i < STM_NUM_TIMERS; i++) { |
| timerdev = DEVICE(&(s->timer[i])); |
| qdev_prop_set_uint64(timerdev, "clock-frequency", 1000000000); |
| object_property_set_bool(OBJECT(&s->timer[i]), true, "realized", &err); |
| if (err != NULL) { |
| error_propagate(errp, err); |
| return; |
| } |
| timerbusdev = SYS_BUS_DEVICE(timerdev); |
| sysbus_mmio_map(timerbusdev, 0, timer_addr[i]); |
| sysbus_connect_irq(timerbusdev, 0, |
| qdev_get_gpio_in(nvic, timer_irq[i])); |
| } |
| } |
| |
| static Property stm32f205_soc_properties[] = { |
| DEFINE_PROP_STRING("kernel-filename", STM32F205State, kernel_filename), |
| DEFINE_PROP_STRING("cpu-model", STM32F205State, cpu_model), |
| DEFINE_PROP_END_OF_LIST(), |
| }; |
| |
| static void stm32f205_soc_class_init(ObjectClass *klass, void *data) |
| { |
| DeviceClass *dc = DEVICE_CLASS(klass); |
| |
| dc->realize = stm32f205_soc_realize; |
| dc->props = stm32f205_soc_properties; |
| } |
| |
| static const TypeInfo stm32f205_soc_info = { |
| .name = TYPE_STM32F205_SOC, |
| .parent = TYPE_SYS_BUS_DEVICE, |
| .instance_size = sizeof(STM32F205State), |
| .instance_init = stm32f205_soc_initfn, |
| .class_init = stm32f205_soc_class_init, |
| }; |
| |
| static void stm32f205_soc_types(void) |
| { |
| type_register_static(&stm32f205_soc_info); |
| } |
| |
| type_init(stm32f205_soc_types) |