These changes are the raw update to qemu-2.6.
[kvmfornfv.git] / qemu / hw / arm / stm32f205_soc.c
1 /*
2  * STM32F205 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 "cpu.h"
29 #include "hw/arm/arm.h"
30 #include "exec/address-spaces.h"
31 #include "hw/arm/stm32f205_soc.h"
32
33 /* At the moment only Timer 2 to 5 are modelled */
34 static const uint32_t timer_addr[STM_NUM_TIMERS] = { 0x40000000, 0x40000400,
35     0x40000800, 0x40000C00 };
36 static const uint32_t usart_addr[STM_NUM_USARTS] = { 0x40011000, 0x40004400,
37     0x40004800, 0x40004C00, 0x40005000, 0x40011400 };
38
39 static const int timer_irq[STM_NUM_TIMERS] = {28, 29, 30, 50};
40 static const int usart_irq[STM_NUM_USARTS] = {37, 38, 39, 52, 53, 71};
41
42 static void stm32f205_soc_initfn(Object *obj)
43 {
44     STM32F205State *s = STM32F205_SOC(obj);
45     int i;
46
47     object_initialize(&s->syscfg, sizeof(s->syscfg), TYPE_STM32F2XX_SYSCFG);
48     qdev_set_parent_bus(DEVICE(&s->syscfg), sysbus_get_default());
49
50     for (i = 0; i < STM_NUM_USARTS; i++) {
51         object_initialize(&s->usart[i], sizeof(s->usart[i]),
52                           TYPE_STM32F2XX_USART);
53         qdev_set_parent_bus(DEVICE(&s->usart[i]), sysbus_get_default());
54     }
55
56     for (i = 0; i < STM_NUM_TIMERS; i++) {
57         object_initialize(&s->timer[i], sizeof(s->timer[i]),
58                           TYPE_STM32F2XX_TIMER);
59         qdev_set_parent_bus(DEVICE(&s->timer[i]), sysbus_get_default());
60     }
61 }
62
63 static void stm32f205_soc_realize(DeviceState *dev_soc, Error **errp)
64 {
65     STM32F205State *s = STM32F205_SOC(dev_soc);
66     DeviceState *syscfgdev, *usartdev, *timerdev, *nvic;
67     SysBusDevice *syscfgbusdev, *usartbusdev, *timerbusdev;
68     Error *err = NULL;
69     int i;
70
71     MemoryRegion *system_memory = get_system_memory();
72     MemoryRegion *sram = g_new(MemoryRegion, 1);
73     MemoryRegion *flash = g_new(MemoryRegion, 1);
74     MemoryRegion *flash_alias = g_new(MemoryRegion, 1);
75
76     memory_region_init_ram(flash, NULL, "STM32F205.flash", FLASH_SIZE,
77                            &error_fatal);
78     memory_region_init_alias(flash_alias, NULL, "STM32F205.flash.alias",
79                              flash, 0, FLASH_SIZE);
80
81     vmstate_register_ram_global(flash);
82
83     memory_region_set_readonly(flash, true);
84     memory_region_set_readonly(flash_alias, true);
85
86     memory_region_add_subregion(system_memory, FLASH_BASE_ADDRESS, flash);
87     memory_region_add_subregion(system_memory, 0, flash_alias);
88
89     memory_region_init_ram(sram, NULL, "STM32F205.sram", SRAM_SIZE,
90                            &error_fatal);
91     vmstate_register_ram_global(sram);
92     memory_region_add_subregion(system_memory, SRAM_BASE_ADDRESS, sram);
93
94     nvic = armv7m_init(get_system_memory(), FLASH_SIZE, 96,
95                        s->kernel_filename, s->cpu_model);
96
97     /* System configuration controller */
98     syscfgdev = DEVICE(&s->syscfg);
99     object_property_set_bool(OBJECT(&s->syscfg), true, "realized", &err);
100     if (err != NULL) {
101         error_propagate(errp, err);
102         return;
103     }
104     syscfgbusdev = SYS_BUS_DEVICE(syscfgdev);
105     sysbus_mmio_map(syscfgbusdev, 0, 0x40013800);
106     sysbus_connect_irq(syscfgbusdev, 0, qdev_get_gpio_in(nvic, 71));
107
108     /* Attach UART (uses USART registers) and USART controllers */
109     for (i = 0; i < STM_NUM_USARTS; i++) {
110         usartdev = DEVICE(&(s->usart[i]));
111         object_property_set_bool(OBJECT(&s->usart[i]), true, "realized", &err);
112         if (err != NULL) {
113             error_propagate(errp, err);
114             return;
115         }
116         usartbusdev = SYS_BUS_DEVICE(usartdev);
117         sysbus_mmio_map(usartbusdev, 0, usart_addr[i]);
118         sysbus_connect_irq(usartbusdev, 0,
119                            qdev_get_gpio_in(nvic, usart_irq[i]));
120     }
121
122     /* Timer 2 to 5 */
123     for (i = 0; i < STM_NUM_TIMERS; i++) {
124         timerdev = DEVICE(&(s->timer[i]));
125         qdev_prop_set_uint64(timerdev, "clock-frequency", 1000000000);
126         object_property_set_bool(OBJECT(&s->timer[i]), true, "realized", &err);
127         if (err != NULL) {
128             error_propagate(errp, err);
129             return;
130         }
131         timerbusdev = SYS_BUS_DEVICE(timerdev);
132         sysbus_mmio_map(timerbusdev, 0, timer_addr[i]);
133         sysbus_connect_irq(timerbusdev, 0,
134                            qdev_get_gpio_in(nvic, timer_irq[i]));
135     }
136 }
137
138 static Property stm32f205_soc_properties[] = {
139     DEFINE_PROP_STRING("kernel-filename", STM32F205State, kernel_filename),
140     DEFINE_PROP_STRING("cpu-model", STM32F205State, cpu_model),
141     DEFINE_PROP_END_OF_LIST(),
142 };
143
144 static void stm32f205_soc_class_init(ObjectClass *klass, void *data)
145 {
146     DeviceClass *dc = DEVICE_CLASS(klass);
147
148     dc->realize = stm32f205_soc_realize;
149     dc->props = stm32f205_soc_properties;
150 }
151
152 static const TypeInfo stm32f205_soc_info = {
153     .name          = TYPE_STM32F205_SOC,
154     .parent        = TYPE_SYS_BUS_DEVICE,
155     .instance_size = sizeof(STM32F205State),
156     .instance_init = stm32f205_soc_initfn,
157     .class_init    = stm32f205_soc_class_init,
158 };
159
160 static void stm32f205_soc_types(void)
161 {
162     type_register_static(&stm32f205_soc_info);
163 }
164
165 type_init(stm32f205_soc_types)