hw/arm/stm32f405_soc.c

   1 /*
   2  * STM32F405 SoC
   3  *
   4  * Copyright (c) 2014 Alistair Francis <alistair@alistair23.me>
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a copy
   7  * of this software and associated documentation files (the "Software"), to deal
   8  * in the Software without restriction, including without limitation the rights
   9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10  * copies of the Software, and to permit persons to whom the Software is
  11  * furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22  * THE SOFTWARE.
  23  */
  24
  25 #include "qemu/osdep.h"
  26 #include "qapi/error.h"
  27 #include "qemu-common.h"
  28 #include "exec/address-spaces.h"
  29 #include "sysemu/sysemu.h"
  30 #include "hw/arm/stm32f405_soc.h"
  31 #include "hw/misc/unimp.h"
  32
  33 #define SYSCFG_ADD                     0x40013800
  34 static const uint32_t usart_addr[] = { 0x40011000, 0x40004400, 0x40004800,
  35                                        0x40004C00, 0x40005000, 0x40011400,
  36                                        0x40007800, 0x40007C00 };
  37 /* At the moment only Timer 2 to 5 are modelled */
  38 static const uint32_t timer_addr[] = { 0x40000000, 0x40000400,
  39                                        0x40000800, 0x40000C00 };
  40 #define ADC_ADDR                       0x40012000
  41 static const uint32_t spi_addr[] =   { 0x40013000, 0x40003800, 0x40003C00,
  42                                        0x40013400, 0x40015000, 0x40015400 };
  43 #define EXTI_ADDR                      0x40013C00
  44
  45 #define SYSCFG_IRQ               71
  46 static const int usart_irq[] = { 37, 38, 39, 52, 53, 71, 82, 83 };
  47 static const int timer_irq[] = { 28, 29, 30, 50 };
  48 #define ADC_IRQ 18
  49 static const int spi_irq[] =   { 35, 36, 51, 0, 0, 0 };
  50 static const int exti_irq[] =  { 6, 7, 8, 9, 10, 23, 23, 23, 23, 23, 40,
  51                                  40, 40, 40, 40, 40} ;
  52
  53
  54 static void stm32f405_soc_initfn(Object *obj)
  55 {
  56     STM32F405State *s = STM32F405_SOC(obj);
  57     int i;
  58
  59     sysbus_init_child_obj(obj, "armv7m", &s->armv7m, sizeof(s->armv7m),
  60                           TYPE_ARMV7M);
  61
  62     sysbus_init_child_obj(obj, "syscfg", &s->syscfg, sizeof(s->syscfg),
  63                           TYPE_STM32F4XX_SYSCFG);
  64
  65     for (i = 0; i < STM_NUM_USARTS; i++) {
  66         sysbus_init_child_obj(obj, "usart[*]", &s->usart[i],
  67                               sizeof(s->usart[i]), TYPE_STM32F2XX_USART);
  68     }
  69
  70     for (i = 0; i < STM_NUM_TIMERS; i++) {
  71         sysbus_init_child_obj(obj, "timer[*]", &s->timer[i],
  72                               sizeof(s->timer[i]), TYPE_STM32F2XX_TIMER);
  73     }
  74
  75     for (i = 0; i < STM_NUM_ADCS; i++) {
  76         sysbus_init_child_obj(obj, "adc[*]", &s->adc[i], sizeof(s->adc[i]),
  77                               TYPE_STM32F2XX_ADC);
  78     }
  79
  80     for (i = 0; i < STM_NUM_SPIS; i++) {
  81         sysbus_init_child_obj(obj, "spi[*]", &s->spi[i], sizeof(s->spi[i]),
  82                               TYPE_STM32F2XX_SPI);
  83     }
  84
  85     sysbus_init_child_obj(obj, "exti", &s->exti, sizeof(s->exti),
  86                           TYPE_STM32F4XX_EXTI);
  87 }
  88
  89 static void stm32f405_soc_realize(DeviceState *dev_soc, Error **errp)
  90 {
  91     STM32F405State *s = STM32F405_SOC(dev_soc);
  92     MemoryRegion *system_memory = get_system_memory();
  93     DeviceState *dev, *armv7m;
  94     SysBusDevice *busdev;
  95     Error *err = NULL;
  96     int i;
  97
  98     memory_region_init_rom(&s->flash, OBJECT(dev_soc), "STM32F405.flash",
  99                            FLASH_SIZE, &err);
 100     if (err != NULL) {
 101         error_propagate(errp, err);
 102         return;
 103     }
 104     memory_region_init_alias(&s->flash_alias, OBJECT(dev_soc),
 105                              "STM32F405.flash.alias", &s->flash, 0,
 106                              FLASH_SIZE);
 107
 108     memory_region_add_subregion(system_memory, FLASH_BASE_ADDRESS, &s->flash);
 109     memory_region_add_subregion(system_memory, 0, &s->flash_alias);
 110
 111     memory_region_init_ram(&s->sram, NULL, "STM32F405.sram", SRAM_SIZE,
 112                            &err);
 113     if (err != NULL) {
 114         error_propagate(errp, err);
 115         return;
 116     }
 117     memory_region_add_subregion(system_memory, SRAM_BASE_ADDRESS, &s->sram);
 118
 119     armv7m = DEVICE(&s->armv7m);
 120     qdev_prop_set_uint32(armv7m, "num-irq", 96);
 121     qdev_prop_set_string(armv7m, "cpu-type", s->cpu_type);
 122     qdev_prop_set_bit(armv7m, "enable-bitband", true);
 123     object_property_set_link(OBJECT(&s->armv7m), OBJECT(system_memory),
 124                                      "memory", &error_abort);
 125     object_property_set_bool(OBJECT(&s->armv7m), true, "realized", &err);
 126     if (err != NULL) {
 127         error_propagate(errp, err);
 128         return;
 129     }
 130
 131     /* System configuration controller */
 132     dev = DEVICE(&s->syscfg);
 133     object_property_set_bool(OBJECT(&s->syscfg), true, "realized", &err);
 134     if (err != NULL) {
 135         error_propagate(errp, err);
 136         return;
 137     }
 138     busdev = SYS_BUS_DEVICE(dev);
 139     sysbus_mmio_map(busdev, 0, SYSCFG_ADD);
 140     sysbus_connect_irq(busdev, 0, qdev_get_gpio_in(armv7m, SYSCFG_IRQ));
 141
 142     /* Attach UART (uses USART registers) and USART controllers */
 143     for (i = 0; i < STM_NUM_USARTS; i++) {
 144         dev = DEVICE(&(s->usart[i]));
 145         qdev_prop_set_chr(dev, "chardev", serial_hd(i));
 146         object_property_set_bool(OBJECT(&s->usart[i]), true, "realized", &err);
 147         if (err != NULL) {
 148             error_propagate(errp, err);
 149             return;
 150         }
 151         busdev = SYS_BUS_DEVICE(dev);
 152         sysbus_mmio_map(busdev, 0, usart_addr[i]);
 153         sysbus_connect_irq(busdev, 0, qdev_get_gpio_in(armv7m, usart_irq[i]));
 154     }
 155
 156     /* Timer 2 to 5 */
 157     for (i = 0; i < STM_NUM_TIMERS; i++) {
 158         dev = DEVICE(&(s->timer[i]));
 159         qdev_prop_set_uint64(dev, "clock-frequency", 1000000000);
 160         object_property_set_bool(OBJECT(&s->timer[i]), true, "realized", &err);
 161         if (err != NULL) {
 162             error_propagate(errp, err);
 163             return;
 164         }
 165         busdev = SYS_BUS_DEVICE(dev);
 166         sysbus_mmio_map(busdev, 0, timer_addr[i]);
 167         sysbus_connect_irq(busdev, 0, qdev_get_gpio_in(armv7m, timer_irq[i]));
 168     }
 169
 170     /* ADC device, the IRQs are ORed together */
 171     object_initialize_child(OBJECT(s), "adc-orirq", &s->adc_irqs,
 172                             sizeof(s->adc_irqs), TYPE_OR_IRQ,
 173                             &err, NULL);
 174     if (err != NULL) {
 175         error_propagate(errp, err);
 176         return;
 177     }
 178     object_property_set_int(OBJECT(&s->adc_irqs), STM_NUM_ADCS,
 179                             "num-lines", &err);
 180     object_property_set_bool(OBJECT(&s->adc_irqs), true, "realized", &err);
 181     if (err != NULL) {
 182         error_propagate(errp, err);
 183         return;
 184     }
 185     qdev_connect_gpio_out(DEVICE(&s->adc_irqs), 0,
 186                           qdev_get_gpio_in(armv7m, ADC_IRQ));
 187
 188     dev = DEVICE(&(s->adc[i]));
 189     object_property_set_bool(OBJECT(&s->adc[i]), true, "realized", &err);
 190     if (err != NULL) {
 191         error_propagate(errp, err);
 192         return;
 193     }
 194     busdev = SYS_BUS_DEVICE(dev);
 195     sysbus_mmio_map(busdev, 0, ADC_ADDR);
 196     sysbus_connect_irq(busdev, 0,
 197                        qdev_get_gpio_in(DEVICE(&s->adc_irqs), i));
 198
 199     /* SPI devices */
 200     for (i = 0; i < STM_NUM_SPIS; i++) {
 201         dev = DEVICE(&(s->spi[i]));
 202         object_property_set_bool(OBJECT(&s->spi[i]), true, "realized", &err);
 203         if (err != NULL) {
 204             error_propagate(errp, err);
 205             return;
 206         }
 207         busdev = SYS_BUS_DEVICE(dev);
 208         sysbus_mmio_map(busdev, 0, spi_addr[i]);
 209         sysbus_connect_irq(busdev, 0, qdev_get_gpio_in(armv7m, spi_irq[i]));
 210     }
 211
 212     /* EXTI device */
 213     dev = DEVICE(&s->exti);
 214     object_property_set_bool(OBJECT(&s->exti), true, "realized", &err);
 215     if (err != NULL) {
 216         error_propagate(errp, err);
 217         return;
 218     }
 219     busdev = SYS_BUS_DEVICE(dev);
 220     sysbus_mmio_map(busdev, 0, EXTI_ADDR);
 221     for (i = 0; i < 16; i++) {
 222         sysbus_connect_irq(busdev, i, qdev_get_gpio_in(armv7m, exti_irq[i]));
 223     }
 224     for (i = 0; i < 16; i++) {
 225         qdev_connect_gpio_out(DEVICE(&s->syscfg), i, qdev_get_gpio_in(dev, i));
 226     }
 227
 228     create_unimplemented_device("timer[7]",    0x40001400, 0x400);
 229     create_unimplemented_device("timer[12]",   0x40001800, 0x400);
 230     create_unimplemented_device("timer[6]",    0x40001000, 0x400);
 231     create_unimplemented_device("timer[13]",   0x40001C00, 0x400);
 232     create_unimplemented_device("timer[14]",   0x40002000, 0x400);
 233     create_unimplemented_device("RTC and BKP", 0x40002800, 0x400);
 234     create_unimplemented_device("WWDG",        0x40002C00, 0x400);
 235     create_unimplemented_device("IWDG",        0x40003000, 0x400);
 236     create_unimplemented_device("I2S2ext",     0x40003000, 0x400);
 237     create_unimplemented_device("I2S3ext",     0x40004000, 0x400);
 238     create_unimplemented_device("I2C1",        0x40005400, 0x400);
 239     create_unimplemented_device("I2C2",        0x40005800, 0x400);
 240     create_unimplemented_device("I2C3",        0x40005C00, 0x400);
 241     create_unimplemented_device("CAN1",        0x40006400, 0x400);
 242     create_unimplemented_device("CAN2",        0x40006800, 0x400);
 243     create_unimplemented_device("PWR",         0x40007000, 0x400);
 244     create_unimplemented_device("DAC",         0x40007400, 0x400);
 245     create_unimplemented_device("timer[1]",    0x40010000, 0x400);
 246     create_unimplemented_device("timer[8]",    0x40010400, 0x400);
 247     create_unimplemented_device("SDIO",        0x40012C00, 0x400);
 248     create_unimplemented_device("timer[9]",    0x40014000, 0x400);
 249     create_unimplemented_device("timer[10]",   0x40014400, 0x400);
 250     create_unimplemented_device("timer[11]",   0x40014800, 0x400);
 251     create_unimplemented_device("GPIOA",       0x40020000, 0x400);
 252     create_unimplemented_device("GPIOB",       0x40020400, 0x400);
 253     create_unimplemented_device("GPIOC",       0x40020800, 0x400);
 254     create_unimplemented_device("GPIOD",       0x40020C00, 0x400);
 255     create_unimplemented_device("GPIOE",       0x40021000, 0x400);
 256     create_unimplemented_device("GPIOF",       0x40021400, 0x400);
 257     create_unimplemented_device("GPIOG",       0x40021800, 0x400);
 258     create_unimplemented_device("GPIOH",       0x40021C00, 0x400);
 259     create_unimplemented_device("GPIOI",       0x40022000, 0x400);
 260     create_unimplemented_device("CRC",         0x40023000, 0x400);
 261     create_unimplemented_device("RCC",         0x40023800, 0x400);
 262     create_unimplemented_device("Flash Int",   0x40023C00, 0x400);
 263     create_unimplemented_device("BKPSRAM",     0x40024000, 0x400);
 264     create_unimplemented_device("DMA1",        0x40026000, 0x400);
 265     create_unimplemented_device("DMA2",        0x40026400, 0x400);
 266     create_unimplemented_device("Ethernet",    0x40028000, 0x1400);
 267     create_unimplemented_device("USB OTG HS",  0x40040000, 0x30000);
 268     create_unimplemented_device("USB OTG FS",  0x50000000, 0x31000);
 269     create_unimplemented_device("DCMI",        0x50050000, 0x400);
 270     create_unimplemented_device("RNG",         0x50060800, 0x400);
 271 }
 272
 273 static Property stm32f405_soc_properties[] = {
 274     DEFINE_PROP_STRING("cpu-type", STM32F405State, cpu_type),
 275     DEFINE_PROP_END_OF_LIST(),
 276 };
 277
 278 static void stm32f405_soc_class_init(ObjectClass *klass, void *data)
 279 {
 280     DeviceClass *dc = DEVICE_CLASS(klass);
 281
 282     dc->realize = stm32f405_soc_realize;
 283     device_class_set_props(dc, stm32f405_soc_properties);
 284     /* No vmstate or reset required: device has no internal state */
 285 }
 286
 287 static const TypeInfo stm32f405_soc_info = {
 288     .name          = TYPE_STM32F405_SOC,
 289     .parent        = TYPE_SYS_BUS_DEVICE,
 290     .instance_size = sizeof(STM32F405State),
 291     .instance_init = stm32f405_soc_initfn,
 292     .class_init    = stm32f405_soc_class_init,
 293 };
 294
 295 static void stm32f405_soc_types(void)
 296 {
 297     type_register_static(&stm32f405_soc_info);
 298 }
 299
 300 type_init(stm32f405_soc_types)