/* * STM32F405 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 "qemu/osdep.h" #include "qapi/error.h" #include "exec/address-spaces.h" #include "sysemu/sysemu.h" #include "hw/arm/stm32f405_soc.h" #include "hw/qdev-clock.h" #include "hw/misc/unimp.h" #define RCC_ADDR 0x40023800 #define SYSCFG_ADD 0x40013800 static const uint32_t usart_addr[] = { 0x40011000, 0x40004400, 0x40004800, 0x40004C00, 0x40005000, 0x40011400, 0x40007800, 0x40007C00 }; /* At the moment only Timer 2 to 5 are modelled */ static const uint32_t timer_addr[] = { 0x40000000, 0x40000400, 0x40000800, 0x40000C00 }; static const uint32_t adc_addr[] = { 0x40012000, 0x40012100, 0x40012200, 0x40012300, 0x40012400, 0x40012500 }; static const uint32_t spi_addr[] = { 0x40013000, 0x40003800, 0x40003C00, 0x40013400, 0x40015000, 0x40015400 }; #define EXTI_ADDR 0x40013C00 #define SYSCFG_IRQ 71 static const int usart_irq[] = { 37, 38, 39, 52, 53, 71, 82, 83 }; static const int timer_irq[] = { 28, 29, 30, 50 }; #define ADC_IRQ 18 static const int spi_irq[] = { 35, 36, 51, 0, 0, 0 }; static const int exti_irq[] = { 6, 7, 8, 9, 10, 23, 23, 23, 23, 23, 40, 40, 40, 40, 40, 40} ; static void stm32f405_soc_initfn(Object *obj) { STM32F405State *s = STM32F405_SOC(obj); int i; object_initialize_child(obj, "armv7m", &s->armv7m, TYPE_ARMV7M); object_initialize_child(obj, "rcc", &s->rcc, TYPE_STM32_RCC); object_initialize_child(obj, "syscfg", &s->syscfg, TYPE_STM32F4XX_SYSCFG); for (i = 0; i < STM_NUM_USARTS; i++) { object_initialize_child(obj, "usart[*]", &s->usart[i], TYPE_STM32F2XX_USART); } for (i = 0; i < STM_NUM_TIMERS; i++) { object_initialize_child(obj, "timer[*]", &s->timer[i], TYPE_STM32F2XX_TIMER); } for (i = 0; i < STM_NUM_ADCS; i++) { object_initialize_child(obj, "adc[*]", &s->adc[i], TYPE_STM32F2XX_ADC); } for (i = 0; i < STM_NUM_SPIS; i++) { object_initialize_child(obj, "spi[*]", &s->spi[i], TYPE_STM32F2XX_SPI); } object_initialize_child(obj, "exti", &s->exti, TYPE_STM32F4XX_EXTI); s->sysclk = qdev_init_clock_in(DEVICE(s), "sysclk", NULL, NULL, 0); s->refclk = qdev_init_clock_in(DEVICE(s), "refclk", NULL, NULL, 0); } static void stm32f405_soc_realize(DeviceState *dev_soc, Error **errp) { STM32F405State *s = STM32F405_SOC(dev_soc); MemoryRegion *system_memory = get_system_memory(); DeviceState *dev, *armv7m; SysBusDevice *busdev; Error *err = NULL; int i; /* * We use s->refclk internally and only define it with qdev_init_clock_in() * so it is correctly parented and not leaked on an init/deinit; it is not * intended as an externally exposed clock. */ if (clock_has_source(s->refclk)) { error_setg(errp, "refclk clock must not be wired up by the board code"); return; } if (!clock_has_source(s->sysclk)) { error_setg(errp, "sysclk clock must be wired up by the board code"); return; } /* * TODO: ideally we should model the SoC RCC and its ability to * change the sysclk frequency and define different sysclk sources. */ /* The refclk always runs at frequency HCLK / 8 */ clock_set_mul_div(s->refclk, 8, 1); clock_set_source(s->refclk, s->sysclk); memory_region_init_rom(&s->flash, OBJECT(dev_soc), "STM32F405.flash", FLASH_SIZE, &err); if (err != NULL) { error_propagate(errp, err); return; } memory_region_init_alias(&s->flash_alias, OBJECT(dev_soc), "STM32F405.flash.alias", &s->flash, 0, FLASH_SIZE); memory_region_add_subregion(system_memory, FLASH_BASE_ADDRESS, &s->flash); memory_region_add_subregion(system_memory, 0, &s->flash_alias); memory_region_init_ram(&s->sram, NULL, "STM32F405.sram", SRAM_SIZE, &err); if (err != NULL) { error_propagate(errp, err); return; } memory_region_add_subregion(system_memory, SRAM_BASE_ADDRESS, &s->sram); memory_region_init_ram(&s->ccm, NULL, "STM32F405.ccm", CCM_SIZE, &err); if (err != NULL) { error_propagate(errp, err); return; } memory_region_add_subregion(system_memory, CCM_BASE_ADDRESS, &s->ccm); armv7m = DEVICE(&s->armv7m); qdev_prop_set_uint32(armv7m, "num-irq", 96); qdev_prop_set_uint8(armv7m, "num-prio-bits", 4); qdev_prop_set_string(armv7m, "cpu-type", ARM_CPU_TYPE_NAME("cortex-m4")); qdev_prop_set_bit(armv7m, "enable-bitband", true); qdev_connect_clock_in(armv7m, "cpuclk", s->sysclk); qdev_connect_clock_in(armv7m, "refclk", s->refclk); object_property_set_link(OBJECT(&s->armv7m), "memory", OBJECT(system_memory), &error_abort); if (!sysbus_realize(SYS_BUS_DEVICE(&s->armv7m), errp)) { return; } /* Reset and clock controller */ dev = DEVICE(&s->rcc); if (!sysbus_realize(SYS_BUS_DEVICE(&s->rcc), errp)) { return; } busdev = SYS_BUS_DEVICE(dev); sysbus_mmio_map(busdev, 0, RCC_ADDR); /* System configuration controller */ dev = DEVICE(&s->syscfg); if (!sysbus_realize(SYS_BUS_DEVICE(&s->syscfg), errp)) { return; } busdev = SYS_BUS_DEVICE(dev); sysbus_mmio_map(busdev, 0, SYSCFG_ADD); sysbus_connect_irq(busdev, 0, qdev_get_gpio_in(armv7m, SYSCFG_IRQ)); /* Attach UART (uses USART registers) and USART controllers */ for (i = 0; i < STM_NUM_USARTS; i++) { dev = DEVICE(&(s->usart[i])); qdev_prop_set_chr(dev, "chardev", serial_hd(i)); if (!sysbus_realize(SYS_BUS_DEVICE(&s->usart[i]), errp)) { return; } busdev = SYS_BUS_DEVICE(dev); sysbus_mmio_map(busdev, 0, usart_addr[i]); sysbus_connect_irq(busdev, 0, qdev_get_gpio_in(armv7m, usart_irq[i])); } /* Timer 2 to 5 */ for (i = 0; i < STM_NUM_TIMERS; i++) { dev = DEVICE(&(s->timer[i])); qdev_prop_set_uint64(dev, "clock-frequency", 1000000000); if (!sysbus_realize(SYS_BUS_DEVICE(&s->timer[i]), errp)) { return; } busdev = SYS_BUS_DEVICE(dev); sysbus_mmio_map(busdev, 0, timer_addr[i]); sysbus_connect_irq(busdev, 0, qdev_get_gpio_in(armv7m, timer_irq[i])); } /* ADC device, the IRQs are ORed together */ if (!object_initialize_child_with_props(OBJECT(s), "adc-orirq", &s->adc_irqs, sizeof(s->adc_irqs), TYPE_OR_IRQ, errp, NULL)) { return; } object_property_set_int(OBJECT(&s->adc_irqs), "num-lines", STM_NUM_ADCS, &error_abort); if (!qdev_realize(DEVICE(&s->adc_irqs), NULL, errp)) { return; } qdev_connect_gpio_out(DEVICE(&s->adc_irqs), 0, qdev_get_gpio_in(armv7m, ADC_IRQ)); for (i = 0; i < STM_NUM_ADCS; i++) { dev = DEVICE(&(s->adc[i])); if (!sysbus_realize(SYS_BUS_DEVICE(&s->adc[i]), errp)) { return; } busdev = SYS_BUS_DEVICE(dev); sysbus_mmio_map(busdev, 0, adc_addr[i]); sysbus_connect_irq(busdev, 0, qdev_get_gpio_in(DEVICE(&s->adc_irqs), i)); } /* SPI devices */ for (i = 0; i < STM_NUM_SPIS; i++) { dev = DEVICE(&(s->spi[i])); if (!sysbus_realize(SYS_BUS_DEVICE(&s->spi[i]), errp)) { return; } busdev = SYS_BUS_DEVICE(dev); sysbus_mmio_map(busdev, 0, spi_addr[i]); sysbus_connect_irq(busdev, 0, qdev_get_gpio_in(armv7m, spi_irq[i])); } /* EXTI device */ dev = DEVICE(&s->exti); if (!sysbus_realize(SYS_BUS_DEVICE(&s->exti), errp)) { return; } busdev = SYS_BUS_DEVICE(dev); sysbus_mmio_map(busdev, 0, EXTI_ADDR); for (i = 0; i < 16; i++) { sysbus_connect_irq(busdev, i, qdev_get_gpio_in(armv7m, exti_irq[i])); } for (i = 0; i < 16; i++) { qdev_connect_gpio_out(DEVICE(&s->syscfg), i, qdev_get_gpio_in(dev, i)); } create_unimplemented_device("timer[7]", 0x40001400, 0x400); create_unimplemented_device("timer[12]", 0x40001800, 0x400); create_unimplemented_device("timer[6]", 0x40001000, 0x400); create_unimplemented_device("timer[13]", 0x40001C00, 0x400); create_unimplemented_device("timer[14]", 0x40002000, 0x400); create_unimplemented_device("RTC and BKP", 0x40002800, 0x400); create_unimplemented_device("WWDG", 0x40002C00, 0x400); create_unimplemented_device("IWDG", 0x40003000, 0x400); create_unimplemented_device("I2S2ext", 0x40003000, 0x400); create_unimplemented_device("I2S3ext", 0x40004000, 0x400); create_unimplemented_device("I2C1", 0x40005400, 0x400); create_unimplemented_device("I2C2", 0x40005800, 0x400); create_unimplemented_device("I2C3", 0x40005C00, 0x400); create_unimplemented_device("CAN1", 0x40006400, 0x400); create_unimplemented_device("CAN2", 0x40006800, 0x400); create_unimplemented_device("PWR", 0x40007000, 0x400); create_unimplemented_device("DAC", 0x40007400, 0x400); create_unimplemented_device("timer[1]", 0x40010000, 0x400); create_unimplemented_device("timer[8]", 0x40010400, 0x400); create_unimplemented_device("SDIO", 0x40012C00, 0x400); create_unimplemented_device("timer[9]", 0x40014000, 0x400); create_unimplemented_device("timer[10]", 0x40014400, 0x400); create_unimplemented_device("timer[11]", 0x40014800, 0x400); create_unimplemented_device("GPIOA", 0x40020000, 0x400); create_unimplemented_device("GPIOB", 0x40020400, 0x400); create_unimplemented_device("GPIOC", 0x40020800, 0x400); create_unimplemented_device("GPIOD", 0x40020C00, 0x400); create_unimplemented_device("GPIOE", 0x40021000, 0x400); create_unimplemented_device("GPIOF", 0x40021400, 0x400); create_unimplemented_device("GPIOG", 0x40021800, 0x400); create_unimplemented_device("GPIOH", 0x40021C00, 0x400); create_unimplemented_device("GPIOI", 0x40022000, 0x400); create_unimplemented_device("CRC", 0x40023000, 0x400); create_unimplemented_device("Flash Int", 0x40023C00, 0x400); create_unimplemented_device("BKPSRAM", 0x40024000, 0x400); create_unimplemented_device("DMA1", 0x40026000, 0x400); create_unimplemented_device("DMA2", 0x40026400, 0x400); create_unimplemented_device("Ethernet", 0x40028000, 0x1400); create_unimplemented_device("USB OTG HS", 0x40040000, 0x30000); create_unimplemented_device("USB OTG FS", 0x50000000, 0x31000); create_unimplemented_device("DCMI", 0x50050000, 0x400); create_unimplemented_device("RNG", 0x50060800, 0x400); } static void stm32f405_soc_class_init(ObjectClass *klass, void *data) { DeviceClass *dc = DEVICE_CLASS(klass); dc->realize = stm32f405_soc_realize; /* No vmstate or reset required: device has no internal state */ } static const TypeInfo stm32f405_soc_info = { .name = TYPE_STM32F405_SOC, .parent = TYPE_SYS_BUS_DEVICE, .instance_size = sizeof(STM32F405State), .instance_init = stm32f405_soc_initfn, .class_init = stm32f405_soc_class_init, }; static void stm32f405_soc_types(void) { type_register_static(&stm32f405_soc_info); } type_init(stm32f405_soc_types)