From db635521a02c951d03ad7b373acfa92a8ff4359e Mon Sep 17 00:00:00 2001 From: Alistair Francis Date: Wed, 11 Mar 2015 13:21:06 +0000 Subject: [PATCH] stm32f205: Add the stm32f205 SoC This patch adds the stm32f205 SoC. This will be used by the Netduino 2 to create a machine. Signed-off-by: Alistair Francis Reviewed-by: Peter Crosthwaite Message-id: 48d509747a1ea0d8a7d5480560495e679990f9d2.1424175342.git.alistair@alistair23.me Signed-off-by: Peter Maydell --- default-configs/arm-softmmu.mak | 1 + hw/arm/Makefile.objs | 1 + hw/arm/stm32f205_soc.c | 160 ++++++++++++++++++++++++++++++++ include/hw/arm/stm32f205_soc.h | 57 ++++++++++++ 4 files changed, 219 insertions(+) create mode 100644 hw/arm/stm32f205_soc.c create mode 100644 include/hw/arm/stm32f205_soc.h diff --git a/default-configs/arm-softmmu.mak b/default-configs/arm-softmmu.mak index 669dc59358..87d4e34d15 100644 --- a/default-configs/arm-softmmu.mak +++ b/default-configs/arm-softmmu.mak @@ -83,6 +83,7 @@ CONFIG_ZYNQ=y CONFIG_STM32F2XX_TIMER=y CONFIG_STM32F2XX_USART=y CONFIG_STM32F2XX_SYSCFG=y +CONFIG_STM32F205_SOC=y CONFIG_VERSATILE_PCI=y CONFIG_VERSATILE_I2C=y diff --git a/hw/arm/Makefile.objs b/hw/arm/Makefile.objs index 6088e53653..9769317e01 100644 --- a/hw/arm/Makefile.objs +++ b/hw/arm/Makefile.objs @@ -8,3 +8,4 @@ obj-y += armv7m.o exynos4210.o pxa2xx.o pxa2xx_gpio.o pxa2xx_pic.o obj-$(CONFIG_DIGIC) += digic.o obj-y += omap1.o omap2.o strongarm.o obj-$(CONFIG_ALLWINNER_A10) += allwinner-a10.o cubieboard.o +obj-$(CONFIG_STM32F205_SOC) += stm32f205_soc.o diff --git a/hw/arm/stm32f205_soc.c b/hw/arm/stm32f205_soc.c new file mode 100644 index 0000000000..0f3bdc77b6 --- /dev/null +++ b/hw/arm/stm32f205_soc.c @@ -0,0 +1,160 @@ +/* + * STM32F205 SoC + * + * Copyright (c) 2014 Alistair Francis + * + * 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 "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; + SysBusDevice *syscfgbusdev, *usartbusdev, *timerbusdev; + qemu_irq *pic; + 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_abort); + 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_abort); + vmstate_register_ram_global(sram); + memory_region_add_subregion(system_memory, SRAM_BASE_ADDRESS, sram); + + pic = 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, pic[71]); + + /* Attach UART (uses USART registers) and USART controllers */ + for (i = 0; i < STM_NUM_USARTS; i++) { + usartdev = DEVICE(&(s->usart[i])); + 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, pic[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, pic[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) diff --git a/include/hw/arm/stm32f205_soc.h b/include/hw/arm/stm32f205_soc.h new file mode 100644 index 0000000000..3cda17018d --- /dev/null +++ b/include/hw/arm/stm32f205_soc.h @@ -0,0 +1,57 @@ +/* + * STM32F205 SoC + * + * Copyright (c) 2014 Alistair Francis + * + * 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. + */ + +#ifndef HW_ARM_STM32F205SOC_H +#define HW_ARM_STM32F205SOC_H + +#include "hw/misc/stm32f2xx_syscfg.h" +#include "hw/timer/stm32f2xx_timer.h" +#include "hw/char/stm32f2xx_usart.h" + +#define TYPE_STM32F205_SOC "stm32f205_soc" +#define STM32F205_SOC(obj) \ + OBJECT_CHECK(STM32F205State, (obj), TYPE_STM32F205_SOC) + +#define STM_NUM_USARTS 6 +#define STM_NUM_TIMERS 4 + +#define FLASH_BASE_ADDRESS 0x08000000 +#define FLASH_SIZE (1024 * 1024) +#define SRAM_BASE_ADDRESS 0x20000000 +#define SRAM_SIZE (128 * 1024) + +typedef struct STM32F205State { + /*< private >*/ + SysBusDevice parent_obj; + /*< public >*/ + + char *kernel_filename; + char *cpu_model; + + STM32F2XXSyscfgState syscfg; + STM32F2XXUsartState usart[STM_NUM_USARTS]; + STM32F2XXTimerState timer[STM_NUM_TIMERS]; +} STM32F205State; + +#endif