qemu/hw/arm/fsl-imx25.c

   1 /*
   2  * Copyright (c) 2013 Jean-Christophe Dubois <jcd@tribudubois.net>
   3  *
   4  * i.MX25 SOC emulation.
   5  *
   6  * Based on hw/arm/xlnx-zynqmp.c
   7  *
   8  * Copyright (C) 2015 Xilinx Inc
   9  * Written by Peter Crosthwaite <peter.crosthwaite@xilinx.com>
  10  *
  11  *  This program is free software; you can redistribute it and/or modify it
  12  *  under the terms of the GNU General Public License as published by the
  13  *  Free Software Foundation; either version 2 of the License, or
  14  *  (at your option) any later version.
  15  *
  16  *  This program is distributed in the hope that it will be useful, but WITHOUT
  17  *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  18  *  FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
  19  *  for more details.
  20  *
  21  *  You should have received a copy of the GNU General Public License along
  22  *  with this program; if not, see <http://www.gnu.org/licenses/>.
  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/fsl-imx25.h"
  30 #include "sysemu/sysemu.h"
  31 #include "exec/address-spaces.h"
  32 #include "hw/boards.h"
  33 #include "sysemu/char.h"
  34
  35 static void fsl_imx25_init(Object *obj)
  36 {
  37     FslIMX25State *s = FSL_IMX25(obj);
  38     int i;
  39
  40     object_initialize(&s->cpu, sizeof(s->cpu), "arm926-" TYPE_ARM_CPU);
  41
  42     object_initialize(&s->avic, sizeof(s->avic), TYPE_IMX_AVIC);
  43     qdev_set_parent_bus(DEVICE(&s->avic), sysbus_get_default());
  44
  45     object_initialize(&s->ccm, sizeof(s->ccm), TYPE_IMX25_CCM);
  46     qdev_set_parent_bus(DEVICE(&s->ccm), sysbus_get_default());
  47
  48     for (i = 0; i < FSL_IMX25_NUM_UARTS; i++) {
  49         object_initialize(&s->uart[i], sizeof(s->uart[i]), TYPE_IMX_SERIAL);
  50         qdev_set_parent_bus(DEVICE(&s->uart[i]), sysbus_get_default());
  51     }
  52
  53     for (i = 0; i < FSL_IMX25_NUM_GPTS; i++) {
  54         object_initialize(&s->gpt[i], sizeof(s->gpt[i]), TYPE_IMX_GPT);
  55         qdev_set_parent_bus(DEVICE(&s->gpt[i]), sysbus_get_default());
  56     }
  57
  58     for (i = 0; i < FSL_IMX25_NUM_EPITS; i++) {
  59         object_initialize(&s->epit[i], sizeof(s->epit[i]), TYPE_IMX_EPIT);
  60         qdev_set_parent_bus(DEVICE(&s->epit[i]), sysbus_get_default());
  61     }
  62
  63     object_initialize(&s->fec, sizeof(s->fec), TYPE_IMX_FEC);
  64     qdev_set_parent_bus(DEVICE(&s->fec), sysbus_get_default());
  65
  66     for (i = 0; i < FSL_IMX25_NUM_I2CS; i++) {
  67         object_initialize(&s->i2c[i], sizeof(s->i2c[i]), TYPE_IMX_I2C);
  68         qdev_set_parent_bus(DEVICE(&s->i2c[i]), sysbus_get_default());
  69     }
  70
  71     for (i = 0; i < FSL_IMX25_NUM_GPIOS; i++) {
  72         object_initialize(&s->gpio[i], sizeof(s->gpio[i]), TYPE_IMX_GPIO);
  73         qdev_set_parent_bus(DEVICE(&s->gpio[i]), sysbus_get_default());
  74     }
  75 }
  76
  77 static void fsl_imx25_realize(DeviceState *dev, Error **errp)
  78 {
  79     FslIMX25State *s = FSL_IMX25(dev);
  80     uint8_t i;
  81     Error *err = NULL;
  82
  83     object_property_set_bool(OBJECT(&s->cpu), true, "realized", &err);
  84     if (err) {
  85         error_propagate(errp, err);
  86         return;
  87     }
  88
  89     object_property_set_bool(OBJECT(&s->avic), true, "realized", &err);
  90     if (err) {
  91         error_propagate(errp, err);
  92         return;
  93     }
  94     sysbus_mmio_map(SYS_BUS_DEVICE(&s->avic), 0, FSL_IMX25_AVIC_ADDR);
  95     sysbus_connect_irq(SYS_BUS_DEVICE(&s->avic), 0,
  96                        qdev_get_gpio_in(DEVICE(&s->cpu), ARM_CPU_IRQ));
  97     sysbus_connect_irq(SYS_BUS_DEVICE(&s->avic), 1,
  98                        qdev_get_gpio_in(DEVICE(&s->cpu), ARM_CPU_FIQ));
  99
 100     object_property_set_bool(OBJECT(&s->ccm), true, "realized", &err);
 101     if (err) {
 102         error_propagate(errp, err);
 103         return;
 104     }
 105     sysbus_mmio_map(SYS_BUS_DEVICE(&s->ccm), 0, FSL_IMX25_CCM_ADDR);
 106
 107     /* Initialize all UARTs */
 108     for (i = 0; i < FSL_IMX25_NUM_UARTS; i++) {
 109         static const struct {
 110             hwaddr addr;
 111             unsigned int irq;
 112         } serial_table[FSL_IMX25_NUM_UARTS] = {
 113             { FSL_IMX25_UART1_ADDR, FSL_IMX25_UART1_IRQ },
 114             { FSL_IMX25_UART2_ADDR, FSL_IMX25_UART2_IRQ },
 115             { FSL_IMX25_UART3_ADDR, FSL_IMX25_UART3_IRQ },
 116             { FSL_IMX25_UART4_ADDR, FSL_IMX25_UART4_IRQ },
 117             { FSL_IMX25_UART5_ADDR, FSL_IMX25_UART5_IRQ }
 118         };
 119
 120         if (i < MAX_SERIAL_PORTS) {
 121             CharDriverState *chr;
 122
 123             chr = serial_hds[i];
 124
 125             if (!chr) {
 126                 char label[20];
 127                 snprintf(label, sizeof(label), "imx31.uart%d", i);
 128                 chr = qemu_chr_new(label, "null", NULL);
 129             }
 130
 131             qdev_prop_set_chr(DEVICE(&s->uart[i]), "chardev", chr);
 132         }
 133
 134         object_property_set_bool(OBJECT(&s->uart[i]), true, "realized", &err);
 135         if (err) {
 136             error_propagate(errp, err);
 137             return;
 138         }
 139         sysbus_mmio_map(SYS_BUS_DEVICE(&s->uart[i]), 0, serial_table[i].addr);
 140         sysbus_connect_irq(SYS_BUS_DEVICE(&s->uart[i]), 0,
 141                            qdev_get_gpio_in(DEVICE(&s->avic),
 142                                             serial_table[i].irq));
 143     }
 144
 145     /* Initialize all GPT timers */
 146     for (i = 0; i < FSL_IMX25_NUM_GPTS; i++) {
 147         static const struct {
 148             hwaddr addr;
 149             unsigned int irq;
 150         } gpt_table[FSL_IMX25_NUM_GPTS] = {
 151             { FSL_IMX25_GPT1_ADDR, FSL_IMX25_GPT1_IRQ },
 152             { FSL_IMX25_GPT2_ADDR, FSL_IMX25_GPT2_IRQ },
 153             { FSL_IMX25_GPT3_ADDR, FSL_IMX25_GPT3_IRQ },
 154             { FSL_IMX25_GPT4_ADDR, FSL_IMX25_GPT4_IRQ }
 155         };
 156
 157         s->gpt[i].ccm = IMX_CCM(&s->ccm);
 158
 159         object_property_set_bool(OBJECT(&s->gpt[i]), true, "realized", &err);
 160         if (err) {
 161             error_propagate(errp, err);
 162             return;
 163         }
 164         sysbus_mmio_map(SYS_BUS_DEVICE(&s->gpt[i]), 0, gpt_table[i].addr);
 165         sysbus_connect_irq(SYS_BUS_DEVICE(&s->gpt[i]), 0,
 166                            qdev_get_gpio_in(DEVICE(&s->avic),
 167                                             gpt_table[i].irq));
 168     }
 169
 170     /* Initialize all EPIT timers */
 171     for (i = 0; i < FSL_IMX25_NUM_EPITS; i++) {
 172         static const struct {
 173             hwaddr addr;
 174             unsigned int irq;
 175         } epit_table[FSL_IMX25_NUM_EPITS] = {
 176             { FSL_IMX25_EPIT1_ADDR, FSL_IMX25_EPIT1_IRQ },
 177             { FSL_IMX25_EPIT2_ADDR, FSL_IMX25_EPIT2_IRQ }
 178         };
 179
 180         s->epit[i].ccm = IMX_CCM(&s->ccm);
 181
 182         object_property_set_bool(OBJECT(&s->epit[i]), true, "realized", &err);
 183         if (err) {
 184             error_propagate(errp, err);
 185             return;
 186         }
 187         sysbus_mmio_map(SYS_BUS_DEVICE(&s->epit[i]), 0, epit_table[i].addr);
 188         sysbus_connect_irq(SYS_BUS_DEVICE(&s->epit[i]), 0,
 189                            qdev_get_gpio_in(DEVICE(&s->avic),
 190                                             epit_table[i].irq));
 191     }
 192
 193     qdev_set_nic_properties(DEVICE(&s->fec), &nd_table[0]);
 194     object_property_set_bool(OBJECT(&s->fec), true, "realized", &err);
 195     if (err) {
 196         error_propagate(errp, err);
 197         return;
 198     }
 199     sysbus_mmio_map(SYS_BUS_DEVICE(&s->fec), 0, FSL_IMX25_FEC_ADDR);
 200     sysbus_connect_irq(SYS_BUS_DEVICE(&s->fec), 0,
 201                        qdev_get_gpio_in(DEVICE(&s->avic), FSL_IMX25_FEC_IRQ));
 202
 203
 204     /* Initialize all I2C */
 205     for (i = 0; i < FSL_IMX25_NUM_I2CS; i++) {
 206         static const struct {
 207             hwaddr addr;
 208             unsigned int irq;
 209         } i2c_table[FSL_IMX25_NUM_I2CS] = {
 210             { FSL_IMX25_I2C1_ADDR, FSL_IMX25_I2C1_IRQ },
 211             { FSL_IMX25_I2C2_ADDR, FSL_IMX25_I2C2_IRQ },
 212             { FSL_IMX25_I2C3_ADDR, FSL_IMX25_I2C3_IRQ }
 213         };
 214
 215         object_property_set_bool(OBJECT(&s->i2c[i]), true, "realized", &err);
 216         if (err) {
 217             error_propagate(errp, err);
 218             return;
 219         }
 220         sysbus_mmio_map(SYS_BUS_DEVICE(&s->i2c[i]), 0, i2c_table[i].addr);
 221         sysbus_connect_irq(SYS_BUS_DEVICE(&s->i2c[i]), 0,
 222                            qdev_get_gpio_in(DEVICE(&s->avic),
 223                                             i2c_table[i].irq));
 224     }
 225
 226     /* Initialize all GPIOs */
 227     for (i = 0; i < FSL_IMX25_NUM_GPIOS; i++) {
 228         static const struct {
 229             hwaddr addr;
 230             unsigned int irq;
 231         } gpio_table[FSL_IMX25_NUM_GPIOS] = {
 232             { FSL_IMX25_GPIO1_ADDR, FSL_IMX25_GPIO1_IRQ },
 233             { FSL_IMX25_GPIO2_ADDR, FSL_IMX25_GPIO2_IRQ },
 234             { FSL_IMX25_GPIO3_ADDR, FSL_IMX25_GPIO3_IRQ },
 235             { FSL_IMX25_GPIO4_ADDR, FSL_IMX25_GPIO4_IRQ }
 236         };
 237
 238         object_property_set_bool(OBJECT(&s->gpio[i]), true, "realized", &err);
 239         if (err) {
 240             error_propagate(errp, err);
 241             return;
 242         }
 243         sysbus_mmio_map(SYS_BUS_DEVICE(&s->gpio[i]), 0, gpio_table[i].addr);
 244         /* Connect GPIO IRQ to PIC */
 245         sysbus_connect_irq(SYS_BUS_DEVICE(&s->gpio[i]), 0,
 246                            qdev_get_gpio_in(DEVICE(&s->avic),
 247                                             gpio_table[i].irq));
 248     }
 249
 250     /* initialize 2 x 16 KB ROM */
 251     memory_region_init_rom_device(&s->rom[0], NULL, NULL, NULL,
 252                                   "imx25.rom0", FSL_IMX25_ROM0_SIZE, &err);
 253     if (err) {
 254         error_propagate(errp, err);
 255         return;
 256     }
 257     memory_region_add_subregion(get_system_memory(), FSL_IMX25_ROM0_ADDR,
 258                                 &s->rom[0]);
 259     memory_region_init_rom_device(&s->rom[1], NULL, NULL, NULL,
 260                                   "imx25.rom1", FSL_IMX25_ROM1_SIZE, &err);
 261     if (err) {
 262         error_propagate(errp, err);
 263         return;
 264     }
 265     memory_region_add_subregion(get_system_memory(), FSL_IMX25_ROM1_ADDR,
 266                                 &s->rom[1]);
 267
 268     /* initialize internal RAM (128 KB) */
 269     memory_region_init_ram(&s->iram, NULL, "imx25.iram", FSL_IMX25_IRAM_SIZE,
 270                            &err);
 271     if (err) {
 272         error_propagate(errp, err);
 273         return;
 274     }
 275     memory_region_add_subregion(get_system_memory(), FSL_IMX25_IRAM_ADDR,
 276                                 &s->iram);
 277     vmstate_register_ram_global(&s->iram);
 278
 279     /* internal RAM (128 KB) is aliased over 128 MB - 128 KB */
 280     memory_region_init_alias(&s->iram_alias, NULL, "imx25.iram_alias",
 281                              &s->iram, 0, FSL_IMX25_IRAM_ALIAS_SIZE);
 282     memory_region_add_subregion(get_system_memory(), FSL_IMX25_IRAM_ALIAS_ADDR,
 283                                 &s->iram_alias);
 284 }
 285
 286 static void fsl_imx25_class_init(ObjectClass *oc, void *data)
 287 {
 288     DeviceClass *dc = DEVICE_CLASS(oc);
 289
 290     dc->realize = fsl_imx25_realize;
 291
 292     /*
 293      * Reason: creates an ARM CPU, thus use after free(), see
 294      * arm_cpu_class_init()
 295      */
 296     dc->cannot_destroy_with_object_finalize_yet = true;
 297     dc->desc = "i.MX25 SOC";
 298 }
 299
 300 static const TypeInfo fsl_imx25_type_info = {
 301     .name = TYPE_FSL_IMX25,
 302     .parent = TYPE_DEVICE,
 303     .instance_size = sizeof(FslIMX25State),
 304     .instance_init = fsl_imx25_init,
 305     .class_init = fsl_imx25_class_init,
 306 };
 307
 308 static void fsl_imx25_register_types(void)
 309 {
 310     type_register_static(&fsl_imx25_type_info);
 311 }
 312
 313 type_init(fsl_imx25_register_types)