hw/arm/stm32f205_soc.c - qemu - Git at Google

 /*
  * 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 uint32_t adc_addr[STM_NUM_ADCS] = { 0x40012000, 0x40012100,
     0x40012200 };
 static const uint32_t spi_addr[STM_NUM_SPIS] = { 0x40013000, 0x40003800,
     0x40003C00 };

 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};
 #define ADC_IRQ 18
 static const int spi_irq[STM_NUM_SPIS] = {35, 36, 51};

 static void stm32f205_soc_initfn(Object *obj)
 {
     STM32F205State *s = STM32F205_SOC(obj);
     int i;

     object_initialize(&s->armv7m, sizeof(s->armv7m), TYPE_ARMV7M);
     qdev_set_parent_bus(DEVICE(&s->armv7m), sysbus_get_default());

     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());
     }

     s->adc_irqs = OR_IRQ(object_new(TYPE_OR_IRQ));

     for (i = 0; i < STM_NUM_ADCS; i++) {
         object_initialize(&s->adc[i], sizeof(s->adc[i]),
                           TYPE_STM32F2XX_ADC);
         qdev_set_parent_bus(DEVICE(&s->adc[i]), sysbus_get_default());
     }

     for (i = 0; i < STM_NUM_SPIS; i++) {
         object_initialize(&s->spi[i], sizeof(s->spi[i]),
                           TYPE_STM32F2XX_SPI);
         qdev_set_parent_bus(DEVICE(&s->spi[i]), sysbus_get_default());
     }
 }

 static void stm32f205_soc_realize(DeviceState *dev_soc, Error **errp)
 {
     STM32F205State *s = STM32F205_SOC(dev_soc);
     DeviceState *dev, *armv7m;
     SysBusDevice *busdev;
     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);

     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);
     memory_region_add_subregion(system_memory, SRAM_BASE_ADDRESS, sram);

     armv7m = DEVICE(&s->armv7m);
     qdev_prop_set_uint32(armv7m, "num-irq", 96);
     qdev_prop_set_string(armv7m, "cpu-model", s->cpu_model);
     object_property_set_link(OBJECT(&s->armv7m), OBJECT(get_system_memory()),
                                      "memory", &error_abort);
     object_property_set_bool(OBJECT(&s->armv7m), true, "realized", &err);
     if (err != NULL) {
         error_propagate(errp, err);
         return;
     }

     /* System configuration controller */
     dev = DEVICE(&s->syscfg);
     object_property_set_bool(OBJECT(&s->syscfg), true, "realized", &err);
     if (err != NULL) {
         error_propagate(errp, err);
         return;
     }
     busdev = SYS_BUS_DEVICE(dev);
     sysbus_mmio_map(busdev, 0, 0x40013800);
     sysbus_connect_irq(busdev, 0, qdev_get_gpio_in(armv7m, 71));

     /* 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",
                           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;
         }
         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);
         object_property_set_bool(OBJECT(&s->timer[i]), true, "realized", &err);
         if (err != NULL) {
             error_propagate(errp, err);
             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 1 to 3 */
     object_property_set_int(OBJECT(s->adc_irqs), STM_NUM_ADCS,
                             "num-lines", &err);
     object_property_set_bool(OBJECT(s->adc_irqs), true, "realized", &err);
     if (err != NULL) {
         error_propagate(errp, err);
         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]));
         object_property_set_bool(OBJECT(&s->adc[i]), true, "realized", &err);
         if (err != NULL) {
             error_propagate(errp, err);
             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 1 and 2 */
     for (i = 0; i < STM_NUM_SPIS; i++) {
         dev = DEVICE(&(s->spi[i]));
         object_property_set_bool(OBJECT(&s->spi[i]), true, "realized", &err);
         if (err != NULL) {
             error_propagate(errp, err);
             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]));
     }
 }

 static Property stm32f205_soc_properties[] = {
     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)
	/*
	* 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 uint32_t adc_addr[STM_NUM_ADCS] = { 0x40012000, 0x40012100,
	0x40012200 };
	static const uint32_t spi_addr[STM_NUM_SPIS] = { 0x40013000, 0x40003800,
	0x40003C00 };

	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};
	#define ADC_IRQ 18
	static const int spi_irq[STM_NUM_SPIS] = {35, 36, 51};

	static void stm32f205_soc_initfn(Object *obj)
	{
	STM32F205State *s = STM32F205_SOC(obj);
	int i;

	object_initialize(&s->armv7m, sizeof(s->armv7m), TYPE_ARMV7M);
	qdev_set_parent_bus(DEVICE(&s->armv7m), sysbus_get_default());

	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());
	}

	s->adc_irqs = OR_IRQ(object_new(TYPE_OR_IRQ));

	for (i = 0; i < STM_NUM_ADCS; i++) {
	object_initialize(&s->adc[i], sizeof(s->adc[i]),
	TYPE_STM32F2XX_ADC);
	qdev_set_parent_bus(DEVICE(&s->adc[i]), sysbus_get_default());
	}

	for (i = 0; i < STM_NUM_SPIS; i++) {
	object_initialize(&s->spi[i], sizeof(s->spi[i]),
	TYPE_STM32F2XX_SPI);
	qdev_set_parent_bus(DEVICE(&s->spi[i]), sysbus_get_default());
	}
	}

	static void stm32f205_soc_realize(DeviceState dev_soc, Error *errp)
	{
	STM32F205State *s = STM32F205_SOC(dev_soc);
	DeviceState dev, armv7m;
	SysBusDevice *busdev;
	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);

	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);
	memory_region_add_subregion(system_memory, SRAM_BASE_ADDRESS, sram);

	armv7m = DEVICE(&s->armv7m);
	qdev_prop_set_uint32(armv7m, "num-irq", 96);
	qdev_prop_set_string(armv7m, "cpu-model", s->cpu_model);
	object_property_set_link(OBJECT(&s->armv7m), OBJECT(get_system_memory()),
	"memory", &error_abort);
	object_property_set_bool(OBJECT(&s->armv7m), true, "realized", &err);
	if (err != NULL) {
	error_propagate(errp, err);
	return;
	}

	/* System configuration controller */
	dev = DEVICE(&s->syscfg);
	object_property_set_bool(OBJECT(&s->syscfg), true, "realized", &err);
	if (err != NULL) {
	error_propagate(errp, err);
	return;
	}
	busdev = SYS_BUS_DEVICE(dev);
	sysbus_mmio_map(busdev, 0, 0x40013800);
	sysbus_connect_irq(busdev, 0, qdev_get_gpio_in(armv7m, 71));

	/* 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",
	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;
	}
	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);
	object_property_set_bool(OBJECT(&s->timer[i]), true, "realized", &err);
	if (err != NULL) {
	error_propagate(errp, err);
	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 1 to 3 */
	object_property_set_int(OBJECT(s->adc_irqs), STM_NUM_ADCS,
	"num-lines", &err);
	object_property_set_bool(OBJECT(s->adc_irqs), true, "realized", &err);
	if (err != NULL) {
	error_propagate(errp, err);
	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]));
	object_property_set_bool(OBJECT(&s->adc[i]), true, "realized", &err);
	if (err != NULL) {
	error_propagate(errp, err);
	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 1 and 2 */
	for (i = 0; i < STM_NUM_SPIS; i++) {
	dev = DEVICE(&(s->spi[i]));
	object_property_set_bool(OBJECT(&s->spi[i]), true, "realized", &err);
	if (err != NULL) {
	error_propagate(errp, err);
	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]));
	}
	}

	static Property stm32f205_soc_properties[] = {
	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)