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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"
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27#include "exec/address-spaces.h"
28#include "sysemu/sysemu.h"
29#include "hw/arm/stm32f405_soc.h"
66e6a438 30#include "hw/qdev-clock.h"
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31#include "hw/misc/unimp.h"
32
33#define SYSCFG_ADD 0x40013800
34static 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 */
38static const uint32_t timer_addr[] = { 0x40000000, 0x40000400,
39 0x40000800, 0x40000C00 };
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40static const uint32_t adc_addr[] = { 0x40012000, 0x40012100, 0x40012200,
41 0x40012300, 0x40012400, 0x40012500 };
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42static const uint32_t spi_addr[] = { 0x40013000, 0x40003800, 0x40003C00,
43 0x40013400, 0x40015000, 0x40015400 };
44#define EXTI_ADDR 0x40013C00
45
46#define SYSCFG_IRQ 71
47static const int usart_irq[] = { 37, 38, 39, 52, 53, 71, 82, 83 };
48static const int timer_irq[] = { 28, 29, 30, 50 };
49#define ADC_IRQ 18
50static const int spi_irq[] = { 35, 36, 51, 0, 0, 0 };
51static const int exti_irq[] = { 6, 7, 8, 9, 10, 23, 23, 23, 23, 23, 40,
52 40, 40, 40, 40, 40} ;
53
54
55static void stm32f405_soc_initfn(Object *obj)
56{
57 STM32F405State *s = STM32F405_SOC(obj);
58 int i;
59
db873cc5 60 object_initialize_child(obj, "armv7m", &s->armv7m, TYPE_ARMV7M);
529fc5fd 61
db873cc5 62 object_initialize_child(obj, "syscfg", &s->syscfg, TYPE_STM32F4XX_SYSCFG);
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63
64 for (i = 0; i < STM_NUM_USARTS; i++) {
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65 object_initialize_child(obj, "usart[*]", &s->usart[i],
66 TYPE_STM32F2XX_USART);
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67 }
68
69 for (i = 0; i < STM_NUM_TIMERS; i++) {
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70 object_initialize_child(obj, "timer[*]", &s->timer[i],
71 TYPE_STM32F2XX_TIMER);
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72 }
73
74 for (i = 0; i < STM_NUM_ADCS; i++) {
db873cc5 75 object_initialize_child(obj, "adc[*]", &s->adc[i], TYPE_STM32F2XX_ADC);
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76 }
77
78 for (i = 0; i < STM_NUM_SPIS; i++) {
db873cc5 79 object_initialize_child(obj, "spi[*]", &s->spi[i], TYPE_STM32F2XX_SPI);
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80 }
81
db873cc5 82 object_initialize_child(obj, "exti", &s->exti, TYPE_STM32F4XX_EXTI);
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83
84 s->sysclk = qdev_init_clock_in(DEVICE(s), "sysclk", NULL, NULL, 0);
85 s->refclk = qdev_init_clock_in(DEVICE(s), "refclk", NULL, NULL, 0);
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86}
87
88static void stm32f405_soc_realize(DeviceState *dev_soc, Error **errp)
89{
90 STM32F405State *s = STM32F405_SOC(dev_soc);
91 MemoryRegion *system_memory = get_system_memory();
92 DeviceState *dev, *armv7m;
93 SysBusDevice *busdev;
94 Error *err = NULL;
95 int i;
96
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97 /*
98 * We use s->refclk internally and only define it with qdev_init_clock_in()
99 * so it is correctly parented and not leaked on an init/deinit; it is not
100 * intended as an externally exposed clock.
101 */
102 if (clock_has_source(s->refclk)) {
103 error_setg(errp, "refclk clock must not be wired up by the board code");
104 return;
105 }
106
107 if (!clock_has_source(s->sysclk)) {
108 error_setg(errp, "sysclk clock must be wired up by the board code");
109 return;
110 }
111
112 /*
113 * TODO: ideally we should model the SoC RCC and its ability to
114 * change the sysclk frequency and define different sysclk sources.
115 */
116
117 /* The refclk always runs at frequency HCLK / 8 */
118 clock_set_mul_div(s->refclk, 8, 1);
119 clock_set_source(s->refclk, s->sysclk);
120
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121 memory_region_init_rom(&s->flash, OBJECT(dev_soc), "STM32F405.flash",
122 FLASH_SIZE, &err);
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123 if (err != NULL) {
124 error_propagate(errp, err);
125 return;
126 }
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127 memory_region_init_alias(&s->flash_alias, OBJECT(dev_soc),
128 "STM32F405.flash.alias", &s->flash, 0,
129 FLASH_SIZE);
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130
131 memory_region_add_subregion(system_memory, FLASH_BASE_ADDRESS, &s->flash);
132 memory_region_add_subregion(system_memory, 0, &s->flash_alias);
133
134 memory_region_init_ram(&s->sram, NULL, "STM32F405.sram", SRAM_SIZE,
135 &err);
136 if (err != NULL) {
137 error_propagate(errp, err);
138 return;
139 }
140 memory_region_add_subregion(system_memory, SRAM_BASE_ADDRESS, &s->sram);
141
142 armv7m = DEVICE(&s->armv7m);
143 qdev_prop_set_uint32(armv7m, "num-irq", 96);
144 qdev_prop_set_string(armv7m, "cpu-type", s->cpu_type);
145 qdev_prop_set_bit(armv7m, "enable-bitband", true);
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146 qdev_connect_clock_in(armv7m, "cpuclk", s->sysclk);
147 qdev_connect_clock_in(armv7m, "refclk", s->refclk);
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148 object_property_set_link(OBJECT(&s->armv7m), "memory",
149 OBJECT(system_memory), &error_abort);
668f62ec 150 if (!sysbus_realize(SYS_BUS_DEVICE(&s->armv7m), errp)) {
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151 return;
152 }
153
154 /* System configuration controller */
155 dev = DEVICE(&s->syscfg);
668f62ec 156 if (!sysbus_realize(SYS_BUS_DEVICE(&s->syscfg), errp)) {
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157 return;
158 }
159 busdev = SYS_BUS_DEVICE(dev);
160 sysbus_mmio_map(busdev, 0, SYSCFG_ADD);
161 sysbus_connect_irq(busdev, 0, qdev_get_gpio_in(armv7m, SYSCFG_IRQ));
162
163 /* Attach UART (uses USART registers) and USART controllers */
164 for (i = 0; i < STM_NUM_USARTS; i++) {
165 dev = DEVICE(&(s->usart[i]));
166 qdev_prop_set_chr(dev, "chardev", serial_hd(i));
668f62ec 167 if (!sysbus_realize(SYS_BUS_DEVICE(&s->usart[i]), errp)) {
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168 return;
169 }
170 busdev = SYS_BUS_DEVICE(dev);
171 sysbus_mmio_map(busdev, 0, usart_addr[i]);
172 sysbus_connect_irq(busdev, 0, qdev_get_gpio_in(armv7m, usart_irq[i]));
173 }
174
175 /* Timer 2 to 5 */
176 for (i = 0; i < STM_NUM_TIMERS; i++) {
177 dev = DEVICE(&(s->timer[i]));
178 qdev_prop_set_uint64(dev, "clock-frequency", 1000000000);
668f62ec 179 if (!sysbus_realize(SYS_BUS_DEVICE(&s->timer[i]), errp)) {
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180 return;
181 }
182 busdev = SYS_BUS_DEVICE(dev);
183 sysbus_mmio_map(busdev, 0, timer_addr[i]);
184 sysbus_connect_irq(busdev, 0, qdev_get_gpio_in(armv7m, timer_irq[i]));
185 }
186
187 /* ADC device, the IRQs are ORed together */
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188 if (!object_initialize_child_with_props(OBJECT(s), "adc-orirq",
189 &s->adc_irqs, sizeof(s->adc_irqs),
668f62ec 190 TYPE_OR_IRQ, errp, NULL)) {
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191 return;
192 }
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193 object_property_set_int(OBJECT(&s->adc_irqs), "num-lines", STM_NUM_ADCS,
194 &error_abort);
668f62ec 195 if (!qdev_realize(DEVICE(&s->adc_irqs), NULL, errp)) {
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196 return;
197 }
198 qdev_connect_gpio_out(DEVICE(&s->adc_irqs), 0,
199 qdev_get_gpio_in(armv7m, ADC_IRQ));
200
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201 for (i = 0; i < STM_NUM_ADCS; i++) {
202 dev = DEVICE(&(s->adc[i]));
668f62ec 203 if (!sysbus_realize(SYS_BUS_DEVICE(&s->adc[i]), errp)) {
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204 return;
205 }
206 busdev = SYS_BUS_DEVICE(dev);
207 sysbus_mmio_map(busdev, 0, adc_addr[i]);
208 sysbus_connect_irq(busdev, 0,
209 qdev_get_gpio_in(DEVICE(&s->adc_irqs), i));
529fc5fd 210 }
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211
212 /* SPI devices */
213 for (i = 0; i < STM_NUM_SPIS; i++) {
214 dev = DEVICE(&(s->spi[i]));
668f62ec 215 if (!sysbus_realize(SYS_BUS_DEVICE(&s->spi[i]), errp)) {
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216 return;
217 }
218 busdev = SYS_BUS_DEVICE(dev);
219 sysbus_mmio_map(busdev, 0, spi_addr[i]);
220 sysbus_connect_irq(busdev, 0, qdev_get_gpio_in(armv7m, spi_irq[i]));
221 }
222
223 /* EXTI device */
224 dev = DEVICE(&s->exti);
668f62ec 225 if (!sysbus_realize(SYS_BUS_DEVICE(&s->exti), errp)) {
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226 return;
227 }
228 busdev = SYS_BUS_DEVICE(dev);
229 sysbus_mmio_map(busdev, 0, EXTI_ADDR);
230 for (i = 0; i < 16; i++) {
231 sysbus_connect_irq(busdev, i, qdev_get_gpio_in(armv7m, exti_irq[i]));
232 }
233 for (i = 0; i < 16; i++) {
234 qdev_connect_gpio_out(DEVICE(&s->syscfg), i, qdev_get_gpio_in(dev, i));
235 }
236
237 create_unimplemented_device("timer[7]", 0x40001400, 0x400);
238 create_unimplemented_device("timer[12]", 0x40001800, 0x400);
239 create_unimplemented_device("timer[6]", 0x40001000, 0x400);
240 create_unimplemented_device("timer[13]", 0x40001C00, 0x400);
241 create_unimplemented_device("timer[14]", 0x40002000, 0x400);
242 create_unimplemented_device("RTC and BKP", 0x40002800, 0x400);
243 create_unimplemented_device("WWDG", 0x40002C00, 0x400);
244 create_unimplemented_device("IWDG", 0x40003000, 0x400);
245 create_unimplemented_device("I2S2ext", 0x40003000, 0x400);
246 create_unimplemented_device("I2S3ext", 0x40004000, 0x400);
247 create_unimplemented_device("I2C1", 0x40005400, 0x400);
248 create_unimplemented_device("I2C2", 0x40005800, 0x400);
249 create_unimplemented_device("I2C3", 0x40005C00, 0x400);
250 create_unimplemented_device("CAN1", 0x40006400, 0x400);
251 create_unimplemented_device("CAN2", 0x40006800, 0x400);
252 create_unimplemented_device("PWR", 0x40007000, 0x400);
253 create_unimplemented_device("DAC", 0x40007400, 0x400);
254 create_unimplemented_device("timer[1]", 0x40010000, 0x400);
255 create_unimplemented_device("timer[8]", 0x40010400, 0x400);
256 create_unimplemented_device("SDIO", 0x40012C00, 0x400);
257 create_unimplemented_device("timer[9]", 0x40014000, 0x400);
258 create_unimplemented_device("timer[10]", 0x40014400, 0x400);
259 create_unimplemented_device("timer[11]", 0x40014800, 0x400);
260 create_unimplemented_device("GPIOA", 0x40020000, 0x400);
261 create_unimplemented_device("GPIOB", 0x40020400, 0x400);
262 create_unimplemented_device("GPIOC", 0x40020800, 0x400);
263 create_unimplemented_device("GPIOD", 0x40020C00, 0x400);
264 create_unimplemented_device("GPIOE", 0x40021000, 0x400);
265 create_unimplemented_device("GPIOF", 0x40021400, 0x400);
266 create_unimplemented_device("GPIOG", 0x40021800, 0x400);
267 create_unimplemented_device("GPIOH", 0x40021C00, 0x400);
268 create_unimplemented_device("GPIOI", 0x40022000, 0x400);
269 create_unimplemented_device("CRC", 0x40023000, 0x400);
270 create_unimplemented_device("RCC", 0x40023800, 0x400);
271 create_unimplemented_device("Flash Int", 0x40023C00, 0x400);
272 create_unimplemented_device("BKPSRAM", 0x40024000, 0x400);
273 create_unimplemented_device("DMA1", 0x40026000, 0x400);
274 create_unimplemented_device("DMA2", 0x40026400, 0x400);
275 create_unimplemented_device("Ethernet", 0x40028000, 0x1400);
276 create_unimplemented_device("USB OTG HS", 0x40040000, 0x30000);
277 create_unimplemented_device("USB OTG FS", 0x50000000, 0x31000);
278 create_unimplemented_device("DCMI", 0x50050000, 0x400);
279 create_unimplemented_device("RNG", 0x50060800, 0x400);
280}
281
282static Property stm32f405_soc_properties[] = {
283 DEFINE_PROP_STRING("cpu-type", STM32F405State, cpu_type),
284 DEFINE_PROP_END_OF_LIST(),
285};
286
287static void stm32f405_soc_class_init(ObjectClass *klass, void *data)
288{
289 DeviceClass *dc = DEVICE_CLASS(klass);
290
291 dc->realize = stm32f405_soc_realize;
4f67d30b 292 device_class_set_props(dc, stm32f405_soc_properties);
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293 /* No vmstate or reset required: device has no internal state */
294}
295
296static const TypeInfo stm32f405_soc_info = {
297 .name = TYPE_STM32F405_SOC,
298 .parent = TYPE_SYS_BUS_DEVICE,
299 .instance_size = sizeof(STM32F405State),
300 .instance_init = stm32f405_soc_initfn,
301 .class_init = stm32f405_soc_class_init,
302};
303
304static void stm32f405_soc_types(void)
305{
306 type_register_static(&stm32f405_soc_info);
307}
308
309type_init(stm32f405_soc_types)