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/qdev-clock.h" 32 #include "hw/misc/unimp.h" 33 34 #define SYSCFG_ADD 0x40013800 35 static const uint32_t usart_addr[] = { 0x40011000, 0x40004400, 0x40004800, 36 0x40004C00, 0x40005000, 0x40011400, 37 0x40007800, 0x40007C00 }; 38 /* At the moment only Timer 2 to 5 are modelled */ 39 static const uint32_t timer_addr[] = { 0x40000000, 0x40000400, 40 0x40000800, 0x40000C00 }; 41 static const uint32_t adc_addr[] = { 0x40012000, 0x40012100, 0x40012200, 42 0x40012300, 0x40012400, 0x40012500 }; 43 static const uint32_t spi_addr[] = { 0x40013000, 0x40003800, 0x40003C00, 44 0x40013400, 0x40015000, 0x40015400 }; 45 #define EXTI_ADDR 0x40013C00 46 47 #define SYSCFG_IRQ 71 48 static const int usart_irq[] = { 37, 38, 39, 52, 53, 71, 82, 83 }; 49 static const int timer_irq[] = { 28, 29, 30, 50 }; 50 #define ADC_IRQ 18 51 static const int spi_irq[] = { 35, 36, 51, 0, 0, 0 }; 52 static const int exti_irq[] = { 6, 7, 8, 9, 10, 23, 23, 23, 23, 23, 40, 53 40, 40, 40, 40, 40} ; 54 55 56 static void stm32f405_soc_initfn(Object *obj) 57 { 58 STM32F405State *s = STM32F405_SOC(obj); 59 int i; 60 61 object_initialize_child(obj, "armv7m", &s->armv7m, TYPE_ARMV7M); 62 63 object_initialize_child(obj, "syscfg", &s->syscfg, TYPE_STM32F4XX_SYSCFG); 64 65 for (i = 0; i < STM_NUM_USARTS; i++) { 66 object_initialize_child(obj, "usart[*]", &s->usart[i], 67 TYPE_STM32F2XX_USART); 68 } 69 70 for (i = 0; i < STM_NUM_TIMERS; i++) { 71 object_initialize_child(obj, "timer[*]", &s->timer[i], 72 TYPE_STM32F2XX_TIMER); 73 } 74 75 for (i = 0; i < STM_NUM_ADCS; i++) { 76 object_initialize_child(obj, "adc[*]", &s->adc[i], TYPE_STM32F2XX_ADC); 77 } 78 79 for (i = 0; i < STM_NUM_SPIS; i++) { 80 object_initialize_child(obj, "spi[*]", &s->spi[i], TYPE_STM32F2XX_SPI); 81 } 82 83 object_initialize_child(obj, "exti", &s->exti, TYPE_STM32F4XX_EXTI); 84 85 s->sysclk = qdev_init_clock_in(DEVICE(s), "sysclk", NULL, NULL, 0); 86 s->refclk = qdev_init_clock_in(DEVICE(s), "refclk", NULL, NULL, 0); 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 /* 99 * We use s->refclk internally and only define it with qdev_init_clock_in() 100 * so it is correctly parented and not leaked on an init/deinit; it is not 101 * intended as an externally exposed clock. 102 */ 103 if (clock_has_source(s->refclk)) { 104 error_setg(errp, "refclk clock must not be wired up by the board code"); 105 return; 106 } 107 108 if (!clock_has_source(s->sysclk)) { 109 error_setg(errp, "sysclk clock must be wired up by the board code"); 110 return; 111 } 112 113 /* 114 * TODO: ideally we should model the SoC RCC and its ability to 115 * change the sysclk frequency and define different sysclk sources. 116 */ 117 118 /* The refclk always runs at frequency HCLK / 8 */ 119 clock_set_mul_div(s->refclk, 8, 1); 120 clock_set_source(s->refclk, s->sysclk); 121 122 memory_region_init_rom(&s->flash, OBJECT(dev_soc), "STM32F405.flash", 123 FLASH_SIZE, &err); 124 if (err != NULL) { 125 error_propagate(errp, err); 126 return; 127 } 128 memory_region_init_alias(&s->flash_alias, OBJECT(dev_soc), 129 "STM32F405.flash.alias", &s->flash, 0, 130 FLASH_SIZE); 131 132 memory_region_add_subregion(system_memory, FLASH_BASE_ADDRESS, &s->flash); 133 memory_region_add_subregion(system_memory, 0, &s->flash_alias); 134 135 memory_region_init_ram(&s->sram, NULL, "STM32F405.sram", SRAM_SIZE, 136 &err); 137 if (err != NULL) { 138 error_propagate(errp, err); 139 return; 140 } 141 memory_region_add_subregion(system_memory, SRAM_BASE_ADDRESS, &s->sram); 142 143 armv7m = DEVICE(&s->armv7m); 144 qdev_prop_set_uint32(armv7m, "num-irq", 96); 145 qdev_prop_set_string(armv7m, "cpu-type", s->cpu_type); 146 qdev_prop_set_bit(armv7m, "enable-bitband", true); 147 qdev_connect_clock_in(armv7m, "cpuclk", s->sysclk); 148 qdev_connect_clock_in(armv7m, "refclk", s->refclk); 149 object_property_set_link(OBJECT(&s->armv7m), "memory", 150 OBJECT(system_memory), &error_abort); 151 if (!sysbus_realize(SYS_BUS_DEVICE(&s->armv7m), errp)) { 152 return; 153 } 154 155 /* System configuration controller */ 156 dev = DEVICE(&s->syscfg); 157 if (!sysbus_realize(SYS_BUS_DEVICE(&s->syscfg), errp)) { 158 return; 159 } 160 busdev = SYS_BUS_DEVICE(dev); 161 sysbus_mmio_map(busdev, 0, SYSCFG_ADD); 162 sysbus_connect_irq(busdev, 0, qdev_get_gpio_in(armv7m, SYSCFG_IRQ)); 163 164 /* Attach UART (uses USART registers) and USART controllers */ 165 for (i = 0; i < STM_NUM_USARTS; i++) { 166 dev = DEVICE(&(s->usart[i])); 167 qdev_prop_set_chr(dev, "chardev", serial_hd(i)); 168 if (!sysbus_realize(SYS_BUS_DEVICE(&s->usart[i]), errp)) { 169 return; 170 } 171 busdev = SYS_BUS_DEVICE(dev); 172 sysbus_mmio_map(busdev, 0, usart_addr[i]); 173 sysbus_connect_irq(busdev, 0, qdev_get_gpio_in(armv7m, usart_irq[i])); 174 } 175 176 /* Timer 2 to 5 */ 177 for (i = 0; i < STM_NUM_TIMERS; i++) { 178 dev = DEVICE(&(s->timer[i])); 179 qdev_prop_set_uint64(dev, "clock-frequency", 1000000000); 180 if (!sysbus_realize(SYS_BUS_DEVICE(&s->timer[i]), errp)) { 181 return; 182 } 183 busdev = SYS_BUS_DEVICE(dev); 184 sysbus_mmio_map(busdev, 0, timer_addr[i]); 185 sysbus_connect_irq(busdev, 0, qdev_get_gpio_in(armv7m, timer_irq[i])); 186 } 187 188 /* ADC device, the IRQs are ORed together */ 189 if (!object_initialize_child_with_props(OBJECT(s), "adc-orirq", 190 &s->adc_irqs, sizeof(s->adc_irqs), 191 TYPE_OR_IRQ, errp, NULL)) { 192 return; 193 } 194 object_property_set_int(OBJECT(&s->adc_irqs), "num-lines", STM_NUM_ADCS, 195 &error_abort); 196 if (!qdev_realize(DEVICE(&s->adc_irqs), NULL, errp)) { 197 return; 198 } 199 qdev_connect_gpio_out(DEVICE(&s->adc_irqs), 0, 200 qdev_get_gpio_in(armv7m, ADC_IRQ)); 201 202 for (i = 0; i < STM_NUM_ADCS; i++) { 203 dev = DEVICE(&(s->adc[i])); 204 if (!sysbus_realize(SYS_BUS_DEVICE(&s->adc[i]), errp)) { 205 return; 206 } 207 busdev = SYS_BUS_DEVICE(dev); 208 sysbus_mmio_map(busdev, 0, adc_addr[i]); 209 sysbus_connect_irq(busdev, 0, 210 qdev_get_gpio_in(DEVICE(&s->adc_irqs), i)); 211 } 212 213 /* SPI devices */ 214 for (i = 0; i < STM_NUM_SPIS; i++) { 215 dev = DEVICE(&(s->spi[i])); 216 if (!sysbus_realize(SYS_BUS_DEVICE(&s->spi[i]), errp)) { 217 return; 218 } 219 busdev = SYS_BUS_DEVICE(dev); 220 sysbus_mmio_map(busdev, 0, spi_addr[i]); 221 sysbus_connect_irq(busdev, 0, qdev_get_gpio_in(armv7m, spi_irq[i])); 222 } 223 224 /* EXTI device */ 225 dev = DEVICE(&s->exti); 226 if (!sysbus_realize(SYS_BUS_DEVICE(&s->exti), errp)) { 227 return; 228 } 229 busdev = SYS_BUS_DEVICE(dev); 230 sysbus_mmio_map(busdev, 0, EXTI_ADDR); 231 for (i = 0; i < 16; i++) { 232 sysbus_connect_irq(busdev, i, qdev_get_gpio_in(armv7m, exti_irq[i])); 233 } 234 for (i = 0; i < 16; i++) { 235 qdev_connect_gpio_out(DEVICE(&s->syscfg), i, qdev_get_gpio_in(dev, i)); 236 } 237 238 create_unimplemented_device("timer[7]", 0x40001400, 0x400); 239 create_unimplemented_device("timer[12]", 0x40001800, 0x400); 240 create_unimplemented_device("timer[6]", 0x40001000, 0x400); 241 create_unimplemented_device("timer[13]", 0x40001C00, 0x400); 242 create_unimplemented_device("timer[14]", 0x40002000, 0x400); 243 create_unimplemented_device("RTC and BKP", 0x40002800, 0x400); 244 create_unimplemented_device("WWDG", 0x40002C00, 0x400); 245 create_unimplemented_device("IWDG", 0x40003000, 0x400); 246 create_unimplemented_device("I2S2ext", 0x40003000, 0x400); 247 create_unimplemented_device("I2S3ext", 0x40004000, 0x400); 248 create_unimplemented_device("I2C1", 0x40005400, 0x400); 249 create_unimplemented_device("I2C2", 0x40005800, 0x400); 250 create_unimplemented_device("I2C3", 0x40005C00, 0x400); 251 create_unimplemented_device("CAN1", 0x40006400, 0x400); 252 create_unimplemented_device("CAN2", 0x40006800, 0x400); 253 create_unimplemented_device("PWR", 0x40007000, 0x400); 254 create_unimplemented_device("DAC", 0x40007400, 0x400); 255 create_unimplemented_device("timer[1]", 0x40010000, 0x400); 256 create_unimplemented_device("timer[8]", 0x40010400, 0x400); 257 create_unimplemented_device("SDIO", 0x40012C00, 0x400); 258 create_unimplemented_device("timer[9]", 0x40014000, 0x400); 259 create_unimplemented_device("timer[10]", 0x40014400, 0x400); 260 create_unimplemented_device("timer[11]", 0x40014800, 0x400); 261 create_unimplemented_device("GPIOA", 0x40020000, 0x400); 262 create_unimplemented_device("GPIOB", 0x40020400, 0x400); 263 create_unimplemented_device("GPIOC", 0x40020800, 0x400); 264 create_unimplemented_device("GPIOD", 0x40020C00, 0x400); 265 create_unimplemented_device("GPIOE", 0x40021000, 0x400); 266 create_unimplemented_device("GPIOF", 0x40021400, 0x400); 267 create_unimplemented_device("GPIOG", 0x40021800, 0x400); 268 create_unimplemented_device("GPIOH", 0x40021C00, 0x400); 269 create_unimplemented_device("GPIOI", 0x40022000, 0x400); 270 create_unimplemented_device("CRC", 0x40023000, 0x400); 271 create_unimplemented_device("RCC", 0x40023800, 0x400); 272 create_unimplemented_device("Flash Int", 0x40023C00, 0x400); 273 create_unimplemented_device("BKPSRAM", 0x40024000, 0x400); 274 create_unimplemented_device("DMA1", 0x40026000, 0x400); 275 create_unimplemented_device("DMA2", 0x40026400, 0x400); 276 create_unimplemented_device("Ethernet", 0x40028000, 0x1400); 277 create_unimplemented_device("USB OTG HS", 0x40040000, 0x30000); 278 create_unimplemented_device("USB OTG FS", 0x50000000, 0x31000); 279 create_unimplemented_device("DCMI", 0x50050000, 0x400); 280 create_unimplemented_device("RNG", 0x50060800, 0x400); 281 } 282 283 static Property stm32f405_soc_properties[] = { 284 DEFINE_PROP_STRING("cpu-type", STM32F405State, cpu_type), 285 DEFINE_PROP_END_OF_LIST(), 286 }; 287 288 static void stm32f405_soc_class_init(ObjectClass *klass, void *data) 289 { 290 DeviceClass *dc = DEVICE_CLASS(klass); 291 292 dc->realize = stm32f405_soc_realize; 293 device_class_set_props(dc, stm32f405_soc_properties); 294 /* No vmstate or reset required: device has no internal state */ 295 } 296 297 static const TypeInfo stm32f405_soc_info = { 298 .name = TYPE_STM32F405_SOC, 299 .parent = TYPE_SYS_BUS_DEVICE, 300 .instance_size = sizeof(STM32F405State), 301 .instance_init = stm32f405_soc_initfn, 302 .class_init = stm32f405_soc_class_init, 303 }; 304 305 static void stm32f405_soc_types(void) 306 { 307 type_register_static(&stm32f405_soc_info); 308 } 309 310 type_init(stm32f405_soc_types) 311