1 /*
2 * Copyright (c) 2013 Jean-Christophe Dubois <jcd@tribudubois.net>
3 *
4 * i.MX31 SOC emulation.
5 *
6 * Based on hw/arm/fsl-imx31.c
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful, but WITHOUT
14 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 * for more details.
17 *
18 * You should have received a copy of the GNU General Public License along
19 * with this program; if not, see <http://www.gnu.org/licenses/>.
20 */
21
22 #include "qemu/osdep.h"
23 #include "qapi/error.h"
24 #include "cpu.h"
25 #include "hw/arm/fsl-imx31.h"
26 #include "sysemu/sysemu.h"
27 #include "exec/address-spaces.h"
28 #include "hw/qdev-properties.h"
29 #include "chardev/char.h"
30
fsl_imx31_init(Object * obj)31 static void fsl_imx31_init(Object *obj)
32 {
33 FslIMX31State *s = FSL_IMX31(obj);
34 int i;
35
36 object_initialize_child(obj, "cpu", &s->cpu, sizeof(s->cpu),
37 ARM_CPU_TYPE_NAME("arm1136"),
38 &error_abort, NULL);
39
40 sysbus_init_child_obj(obj, "avic", &s->avic, sizeof(s->avic),
41 TYPE_IMX_AVIC);
42
43 sysbus_init_child_obj(obj, "ccm", &s->ccm, sizeof(s->ccm), TYPE_IMX31_CCM);
44
45 for (i = 0; i < FSL_IMX31_NUM_UARTS; i++) {
46 sysbus_init_child_obj(obj, "uart[*]", &s->uart[i], sizeof(s->uart[i]),
47 TYPE_IMX_SERIAL);
48 }
49
50 sysbus_init_child_obj(obj, "gpt", &s->gpt, sizeof(s->gpt), TYPE_IMX31_GPT);
51
52 for (i = 0; i < FSL_IMX31_NUM_EPITS; i++) {
53 sysbus_init_child_obj(obj, "epit[*]", &s->epit[i], sizeof(s->epit[i]),
54 TYPE_IMX_EPIT);
55 }
56
57 for (i = 0; i < FSL_IMX31_NUM_I2CS; i++) {
58 sysbus_init_child_obj(obj, "i2c[*]", &s->i2c[i], sizeof(s->i2c[i]),
59 TYPE_IMX_I2C);
60 }
61
62 for (i = 0; i < FSL_IMX31_NUM_GPIOS; i++) {
63 sysbus_init_child_obj(obj, "gpio[*]", &s->gpio[i], sizeof(s->gpio[i]),
64 TYPE_IMX_GPIO);
65 }
66 }
67
fsl_imx31_realize(DeviceState * dev,Error ** errp)68 static void fsl_imx31_realize(DeviceState *dev, Error **errp)
69 {
70 FslIMX31State *s = FSL_IMX31(dev);
71 uint16_t i;
72 Error *err = NULL;
73
74 object_property_set_bool(OBJECT(&s->cpu), true, "realized", &err);
75 if (err) {
76 error_propagate(errp, err);
77 return;
78 }
79
80 object_property_set_bool(OBJECT(&s->avic), true, "realized", &err);
81 if (err) {
82 error_propagate(errp, err);
83 return;
84 }
85 sysbus_mmio_map(SYS_BUS_DEVICE(&s->avic), 0, FSL_IMX31_AVIC_ADDR);
86 sysbus_connect_irq(SYS_BUS_DEVICE(&s->avic), 0,
87 qdev_get_gpio_in(DEVICE(&s->cpu), ARM_CPU_IRQ));
88 sysbus_connect_irq(SYS_BUS_DEVICE(&s->avic), 1,
89 qdev_get_gpio_in(DEVICE(&s->cpu), ARM_CPU_FIQ));
90
91 object_property_set_bool(OBJECT(&s->ccm), true, "realized", &err);
92 if (err) {
93 error_propagate(errp, err);
94 return;
95 }
96 sysbus_mmio_map(SYS_BUS_DEVICE(&s->ccm), 0, FSL_IMX31_CCM_ADDR);
97
98 /* Initialize all UARTS */
99 for (i = 0; i < FSL_IMX31_NUM_UARTS; i++) {
100 static const struct {
101 hwaddr addr;
102 unsigned int irq;
103 } serial_table[FSL_IMX31_NUM_UARTS] = {
104 { FSL_IMX31_UART1_ADDR, FSL_IMX31_UART1_IRQ },
105 { FSL_IMX31_UART2_ADDR, FSL_IMX31_UART2_IRQ },
106 };
107
108 qdev_prop_set_chr(DEVICE(&s->uart[i]), "chardev", serial_hd(i));
109
110 object_property_set_bool(OBJECT(&s->uart[i]), true, "realized", &err);
111 if (err) {
112 error_propagate(errp, err);
113 return;
114 }
115
116 sysbus_mmio_map(SYS_BUS_DEVICE(&s->uart[i]), 0, serial_table[i].addr);
117 sysbus_connect_irq(SYS_BUS_DEVICE(&s->uart[i]), 0,
118 qdev_get_gpio_in(DEVICE(&s->avic),
119 serial_table[i].irq));
120 }
121
122 s->gpt.ccm = IMX_CCM(&s->ccm);
123
124 object_property_set_bool(OBJECT(&s->gpt), true, "realized", &err);
125 if (err) {
126 error_propagate(errp, err);
127 return;
128 }
129
130 sysbus_mmio_map(SYS_BUS_DEVICE(&s->gpt), 0, FSL_IMX31_GPT_ADDR);
131 sysbus_connect_irq(SYS_BUS_DEVICE(&s->gpt), 0,
132 qdev_get_gpio_in(DEVICE(&s->avic), FSL_IMX31_GPT_IRQ));
133
134 /* Initialize all EPIT timers */
135 for (i = 0; i < FSL_IMX31_NUM_EPITS; i++) {
136 static const struct {
137 hwaddr addr;
138 unsigned int irq;
139 } epit_table[FSL_IMX31_NUM_EPITS] = {
140 { FSL_IMX31_EPIT1_ADDR, FSL_IMX31_EPIT1_IRQ },
141 { FSL_IMX31_EPIT2_ADDR, FSL_IMX31_EPIT2_IRQ },
142 };
143
144 s->epit[i].ccm = IMX_CCM(&s->ccm);
145
146 object_property_set_bool(OBJECT(&s->epit[i]), true, "realized", &err);
147 if (err) {
148 error_propagate(errp, err);
149 return;
150 }
151
152 sysbus_mmio_map(SYS_BUS_DEVICE(&s->epit[i]), 0, epit_table[i].addr);
153 sysbus_connect_irq(SYS_BUS_DEVICE(&s->epit[i]), 0,
154 qdev_get_gpio_in(DEVICE(&s->avic),
155 epit_table[i].irq));
156 }
157
158 /* Initialize all I2C */
159 for (i = 0; i < FSL_IMX31_NUM_I2CS; i++) {
160 static const struct {
161 hwaddr addr;
162 unsigned int irq;
163 } i2c_table[FSL_IMX31_NUM_I2CS] = {
164 { FSL_IMX31_I2C1_ADDR, FSL_IMX31_I2C1_IRQ },
165 { FSL_IMX31_I2C2_ADDR, FSL_IMX31_I2C2_IRQ },
166 { FSL_IMX31_I2C3_ADDR, FSL_IMX31_I2C3_IRQ }
167 };
168
169 /* Initialize the I2C */
170 object_property_set_bool(OBJECT(&s->i2c[i]), true, "realized", &err);
171 if (err) {
172 error_propagate(errp, err);
173 return;
174 }
175 /* Map I2C memory */
176 sysbus_mmio_map(SYS_BUS_DEVICE(&s->i2c[i]), 0, i2c_table[i].addr);
177 /* Connect I2C IRQ to PIC */
178 sysbus_connect_irq(SYS_BUS_DEVICE(&s->i2c[i]), 0,
179 qdev_get_gpio_in(DEVICE(&s->avic),
180 i2c_table[i].irq));
181 }
182
183 /* Initialize all GPIOs */
184 for (i = 0; i < FSL_IMX31_NUM_GPIOS; i++) {
185 static const struct {
186 hwaddr addr;
187 unsigned int irq;
188 } gpio_table[FSL_IMX31_NUM_GPIOS] = {
189 { FSL_IMX31_GPIO1_ADDR, FSL_IMX31_GPIO1_IRQ },
190 { FSL_IMX31_GPIO2_ADDR, FSL_IMX31_GPIO2_IRQ },
191 { FSL_IMX31_GPIO3_ADDR, FSL_IMX31_GPIO3_IRQ }
192 };
193
194 object_property_set_bool(OBJECT(&s->gpio[i]), false, "has-edge-sel",
195 &error_abort);
196 object_property_set_bool(OBJECT(&s->gpio[i]), true, "realized", &err);
197 if (err) {
198 error_propagate(errp, err);
199 return;
200 }
201 sysbus_mmio_map(SYS_BUS_DEVICE(&s->gpio[i]), 0, gpio_table[i].addr);
202 /* Connect GPIO IRQ to PIC */
203 sysbus_connect_irq(SYS_BUS_DEVICE(&s->gpio[i]), 0,
204 qdev_get_gpio_in(DEVICE(&s->avic),
205 gpio_table[i].irq));
206 }
207
208 /* On a real system, the first 16k is a `secure boot rom' */
209 memory_region_init_rom(&s->secure_rom, NULL, "imx31.secure_rom",
210 FSL_IMX31_SECURE_ROM_SIZE, &err);
211 if (err) {
212 error_propagate(errp, err);
213 return;
214 }
215 memory_region_add_subregion(get_system_memory(), FSL_IMX31_SECURE_ROM_ADDR,
216 &s->secure_rom);
217
218 /* There is also a 16k ROM */
219 memory_region_init_rom(&s->rom, NULL, "imx31.rom",
220 FSL_IMX31_ROM_SIZE, &err);
221 if (err) {
222 error_propagate(errp, err);
223 return;
224 }
225 memory_region_add_subregion(get_system_memory(), FSL_IMX31_ROM_ADDR,
226 &s->rom);
227
228 /* initialize internal RAM (16 KB) */
229 memory_region_init_ram(&s->iram, NULL, "imx31.iram", FSL_IMX31_IRAM_SIZE,
230 &err);
231 if (err) {
232 error_propagate(errp, err);
233 return;
234 }
235 memory_region_add_subregion(get_system_memory(), FSL_IMX31_IRAM_ADDR,
236 &s->iram);
237
238 /* internal RAM (16 KB) is aliased over 256 MB - 16 KB */
239 memory_region_init_alias(&s->iram_alias, NULL, "imx31.iram_alias",
240 &s->iram, 0, FSL_IMX31_IRAM_ALIAS_SIZE);
241 memory_region_add_subregion(get_system_memory(), FSL_IMX31_IRAM_ALIAS_ADDR,
242 &s->iram_alias);
243 }
244
fsl_imx31_class_init(ObjectClass * oc,void * data)245 static void fsl_imx31_class_init(ObjectClass *oc, void *data)
246 {
247 DeviceClass *dc = DEVICE_CLASS(oc);
248
249 dc->realize = fsl_imx31_realize;
250 dc->desc = "i.MX31 SOC";
251 /*
252 * Reason: uses serial_hds in realize and the kzm board does not
253 * support multiple CPUs
254 */
255 dc->user_creatable = false;
256 }
257
258 static const TypeInfo fsl_imx31_type_info = {
259 .name = TYPE_FSL_IMX31,
260 .parent = TYPE_DEVICE,
261 .instance_size = sizeof(FslIMX31State),
262 .instance_init = fsl_imx31_init,
263 .class_init = fsl_imx31_class_init,
264 };
265
fsl_imx31_register_types(void)266 static void fsl_imx31_register_types(void)
267 {
268 type_register_static(&fsl_imx31_type_info);
269 }
270
271 type_init(fsl_imx31_register_types)
272