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 "qemu-common.h" 25 #include "cpu.h" 26 #include "hw/arm/fsl-imx31.h" 27 #include "sysemu/sysemu.h" 28 #include "exec/address-spaces.h" 29 #include "hw/boards.h" 30 #include "chardev/char.h" 31 32 static void fsl_imx31_init(Object *obj) 33 { 34 FslIMX31State *s = FSL_IMX31(obj); 35 int i; 36 37 object_initialize(&s->cpu, sizeof(s->cpu), "arm1136-" TYPE_ARM_CPU); 38 39 object_initialize(&s->avic, sizeof(s->avic), TYPE_IMX_AVIC); 40 qdev_set_parent_bus(DEVICE(&s->avic), sysbus_get_default()); 41 42 object_initialize(&s->ccm, sizeof(s->ccm), TYPE_IMX31_CCM); 43 qdev_set_parent_bus(DEVICE(&s->ccm), sysbus_get_default()); 44 45 for (i = 0; i < FSL_IMX31_NUM_UARTS; i++) { 46 object_initialize(&s->uart[i], sizeof(s->uart[i]), TYPE_IMX_SERIAL); 47 qdev_set_parent_bus(DEVICE(&s->uart[i]), sysbus_get_default()); 48 } 49 50 object_initialize(&s->gpt, sizeof(s->gpt), TYPE_IMX31_GPT); 51 qdev_set_parent_bus(DEVICE(&s->gpt), sysbus_get_default()); 52 53 for (i = 0; i < FSL_IMX31_NUM_EPITS; i++) { 54 object_initialize(&s->epit[i], sizeof(s->epit[i]), TYPE_IMX_EPIT); 55 qdev_set_parent_bus(DEVICE(&s->epit[i]), sysbus_get_default()); 56 } 57 58 for (i = 0; i < FSL_IMX31_NUM_I2CS; i++) { 59 object_initialize(&s->i2c[i], sizeof(s->i2c[i]), TYPE_IMX_I2C); 60 qdev_set_parent_bus(DEVICE(&s->i2c[i]), sysbus_get_default()); 61 } 62 63 for (i = 0; i < FSL_IMX31_NUM_GPIOS; i++) { 64 object_initialize(&s->gpio[i], sizeof(s->gpio[i]), TYPE_IMX_GPIO); 65 qdev_set_parent_bus(DEVICE(&s->gpio[i]), sysbus_get_default()); 66 } 67 } 68 69 static void fsl_imx31_realize(DeviceState *dev, Error **errp) 70 { 71 FslIMX31State *s = FSL_IMX31(dev); 72 uint16_t i; 73 Error *err = NULL; 74 75 object_property_set_bool(OBJECT(&s->cpu), true, "realized", &err); 76 if (err) { 77 error_propagate(errp, err); 78 return; 79 } 80 81 object_property_set_bool(OBJECT(&s->avic), true, "realized", &err); 82 if (err) { 83 error_propagate(errp, err); 84 return; 85 } 86 sysbus_mmio_map(SYS_BUS_DEVICE(&s->avic), 0, FSL_IMX31_AVIC_ADDR); 87 sysbus_connect_irq(SYS_BUS_DEVICE(&s->avic), 0, 88 qdev_get_gpio_in(DEVICE(&s->cpu), ARM_CPU_IRQ)); 89 sysbus_connect_irq(SYS_BUS_DEVICE(&s->avic), 1, 90 qdev_get_gpio_in(DEVICE(&s->cpu), ARM_CPU_FIQ)); 91 92 object_property_set_bool(OBJECT(&s->ccm), true, "realized", &err); 93 if (err) { 94 error_propagate(errp, err); 95 return; 96 } 97 sysbus_mmio_map(SYS_BUS_DEVICE(&s->ccm), 0, FSL_IMX31_CCM_ADDR); 98 99 /* Initialize all UARTS */ 100 for (i = 0; i < FSL_IMX31_NUM_UARTS; i++) { 101 static const struct { 102 hwaddr addr; 103 unsigned int irq; 104 } serial_table[FSL_IMX31_NUM_UARTS] = { 105 { FSL_IMX31_UART1_ADDR, FSL_IMX31_UART1_IRQ }, 106 { FSL_IMX31_UART2_ADDR, FSL_IMX31_UART2_IRQ }, 107 }; 108 109 if (i < MAX_SERIAL_PORTS) { 110 Chardev *chr; 111 112 chr = serial_hds[i]; 113 114 if (!chr) { 115 char label[20]; 116 snprintf(label, sizeof(label), "imx31.uart%d", i); 117 chr = qemu_chr_new(label, "null"); 118 } 119 120 qdev_prop_set_chr(DEVICE(&s->uart[i]), "chardev", chr); 121 } 122 123 object_property_set_bool(OBJECT(&s->uart[i]), true, "realized", &err); 124 if (err) { 125 error_propagate(errp, err); 126 return; 127 } 128 129 sysbus_mmio_map(SYS_BUS_DEVICE(&s->uart[i]), 0, serial_table[i].addr); 130 sysbus_connect_irq(SYS_BUS_DEVICE(&s->uart[i]), 0, 131 qdev_get_gpio_in(DEVICE(&s->avic), 132 serial_table[i].irq)); 133 } 134 135 s->gpt.ccm = IMX_CCM(&s->ccm); 136 137 object_property_set_bool(OBJECT(&s->gpt), true, "realized", &err); 138 if (err) { 139 error_propagate(errp, err); 140 return; 141 } 142 143 sysbus_mmio_map(SYS_BUS_DEVICE(&s->gpt), 0, FSL_IMX31_GPT_ADDR); 144 sysbus_connect_irq(SYS_BUS_DEVICE(&s->gpt), 0, 145 qdev_get_gpio_in(DEVICE(&s->avic), FSL_IMX31_GPT_IRQ)); 146 147 /* Initialize all EPIT timers */ 148 for (i = 0; i < FSL_IMX31_NUM_EPITS; i++) { 149 static const struct { 150 hwaddr addr; 151 unsigned int irq; 152 } epit_table[FSL_IMX31_NUM_EPITS] = { 153 { FSL_IMX31_EPIT1_ADDR, FSL_IMX31_EPIT1_IRQ }, 154 { FSL_IMX31_EPIT2_ADDR, FSL_IMX31_EPIT2_IRQ }, 155 }; 156 157 s->epit[i].ccm = IMX_CCM(&s->ccm); 158 159 object_property_set_bool(OBJECT(&s->epit[i]), true, "realized", &err); 160 if (err) { 161 error_propagate(errp, err); 162 return; 163 } 164 165 sysbus_mmio_map(SYS_BUS_DEVICE(&s->epit[i]), 0, epit_table[i].addr); 166 sysbus_connect_irq(SYS_BUS_DEVICE(&s->epit[i]), 0, 167 qdev_get_gpio_in(DEVICE(&s->avic), 168 epit_table[i].irq)); 169 } 170 171 /* Initialize all I2C */ 172 for (i = 0; i < FSL_IMX31_NUM_I2CS; i++) { 173 static const struct { 174 hwaddr addr; 175 unsigned int irq; 176 } i2c_table[FSL_IMX31_NUM_I2CS] = { 177 { FSL_IMX31_I2C1_ADDR, FSL_IMX31_I2C1_IRQ }, 178 { FSL_IMX31_I2C2_ADDR, FSL_IMX31_I2C2_IRQ }, 179 { FSL_IMX31_I2C3_ADDR, FSL_IMX31_I2C3_IRQ } 180 }; 181 182 /* Initialize the I2C */ 183 object_property_set_bool(OBJECT(&s->i2c[i]), true, "realized", &err); 184 if (err) { 185 error_propagate(errp, err); 186 return; 187 } 188 /* Map I2C memory */ 189 sysbus_mmio_map(SYS_BUS_DEVICE(&s->i2c[i]), 0, i2c_table[i].addr); 190 /* Connect I2C IRQ to PIC */ 191 sysbus_connect_irq(SYS_BUS_DEVICE(&s->i2c[i]), 0, 192 qdev_get_gpio_in(DEVICE(&s->avic), 193 i2c_table[i].irq)); 194 } 195 196 /* Initialize all GPIOs */ 197 for (i = 0; i < FSL_IMX31_NUM_GPIOS; i++) { 198 static const struct { 199 hwaddr addr; 200 unsigned int irq; 201 } gpio_table[FSL_IMX31_NUM_GPIOS] = { 202 { FSL_IMX31_GPIO1_ADDR, FSL_IMX31_GPIO1_IRQ }, 203 { FSL_IMX31_GPIO2_ADDR, FSL_IMX31_GPIO2_IRQ }, 204 { FSL_IMX31_GPIO3_ADDR, FSL_IMX31_GPIO3_IRQ } 205 }; 206 207 object_property_set_bool(OBJECT(&s->gpio[i]), false, "has-edge-sel", 208 &error_abort); 209 object_property_set_bool(OBJECT(&s->gpio[i]), true, "realized", &err); 210 if (err) { 211 error_propagate(errp, err); 212 return; 213 } 214 sysbus_mmio_map(SYS_BUS_DEVICE(&s->gpio[i]), 0, gpio_table[i].addr); 215 /* Connect GPIO IRQ to PIC */ 216 sysbus_connect_irq(SYS_BUS_DEVICE(&s->gpio[i]), 0, 217 qdev_get_gpio_in(DEVICE(&s->avic), 218 gpio_table[i].irq)); 219 } 220 221 /* On a real system, the first 16k is a `secure boot rom' */ 222 memory_region_init_rom(&s->secure_rom, NULL, "imx31.secure_rom", 223 FSL_IMX31_SECURE_ROM_SIZE, &err); 224 if (err) { 225 error_propagate(errp, err); 226 return; 227 } 228 memory_region_add_subregion(get_system_memory(), FSL_IMX31_SECURE_ROM_ADDR, 229 &s->secure_rom); 230 231 /* There is also a 16k ROM */ 232 memory_region_init_rom(&s->rom, NULL, "imx31.rom", 233 FSL_IMX31_ROM_SIZE, &err); 234 if (err) { 235 error_propagate(errp, err); 236 return; 237 } 238 memory_region_add_subregion(get_system_memory(), FSL_IMX31_ROM_ADDR, 239 &s->rom); 240 241 /* initialize internal RAM (16 KB) */ 242 memory_region_init_ram(&s->iram, NULL, "imx31.iram", FSL_IMX31_IRAM_SIZE, 243 &err); 244 if (err) { 245 error_propagate(errp, err); 246 return; 247 } 248 memory_region_add_subregion(get_system_memory(), FSL_IMX31_IRAM_ADDR, 249 &s->iram); 250 251 /* internal RAM (16 KB) is aliased over 256 MB - 16 KB */ 252 memory_region_init_alias(&s->iram_alias, NULL, "imx31.iram_alias", 253 &s->iram, 0, FSL_IMX31_IRAM_ALIAS_SIZE); 254 memory_region_add_subregion(get_system_memory(), FSL_IMX31_IRAM_ALIAS_ADDR, 255 &s->iram_alias); 256 } 257 258 static void fsl_imx31_class_init(ObjectClass *oc, void *data) 259 { 260 DeviceClass *dc = DEVICE_CLASS(oc); 261 262 dc->realize = fsl_imx31_realize; 263 264 dc->desc = "i.MX31 SOC"; 265 } 266 267 static const TypeInfo fsl_imx31_type_info = { 268 .name = TYPE_FSL_IMX31, 269 .parent = TYPE_DEVICE, 270 .instance_size = sizeof(FslIMX31State), 271 .instance_init = fsl_imx31_init, 272 .class_init = fsl_imx31_class_init, 273 }; 274 275 static void fsl_imx31_register_types(void) 276 { 277 type_register_static(&fsl_imx31_type_info); 278 } 279 280 type_init(fsl_imx31_register_types) 281