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 "cpu.h"
  28 #include "hw/arm/fsl-imx25.h"
  29 #include "sysemu/sysemu.h"
  30 #include "exec/address-spaces.h"
  31 #include "hw/boards.h"
  32 #include "chardev/char.h"
  33
  34 static void fsl_imx25_init(Object *obj)
  35 {
  36     FslIMX25State *s = FSL_IMX25(obj);
  37     int i;
  38
  39     object_initialize(&s->cpu, sizeof(s->cpu), "arm926-" TYPE_ARM_CPU);
  40
  41     sysbus_init_child_obj(obj, "avic", &s->avic, sizeof(s->avic),
  42                           TYPE_IMX_AVIC);
  43
  44     sysbus_init_child_obj(obj, "ccm", &s->ccm, sizeof(s->ccm), TYPE_IMX25_CCM);
  45
  46     for (i = 0; i < FSL_IMX25_NUM_UARTS; i++) {
  47         sysbus_init_child_obj(obj, "uart[*]", &s->uart[i], sizeof(s->uart[i]),
  48                               TYPE_IMX_SERIAL);
  49     }
  50
  51     for (i = 0; i < FSL_IMX25_NUM_GPTS; i++) {
  52         sysbus_init_child_obj(obj, "gpt[*]", &s->gpt[i], sizeof(s->gpt[i]),
  53                               TYPE_IMX25_GPT);
  54     }
  55
  56     for (i = 0; i < FSL_IMX25_NUM_EPITS; i++) {
  57         sysbus_init_child_obj(obj, "epit[*]", &s->epit[i], sizeof(s->epit[i]),
  58                               TYPE_IMX_EPIT);
  59     }
  60
  61     sysbus_init_child_obj(obj, "fec", &s->fec, sizeof(s->fec), TYPE_IMX_FEC);
  62
  63     for (i = 0; i < FSL_IMX25_NUM_I2CS; i++) {
  64         sysbus_init_child_obj(obj, "i2c[*]", &s->i2c[i], sizeof(s->i2c[i]),
  65                               TYPE_IMX_I2C);
  66     }
  67
  68     for (i = 0; i < FSL_IMX25_NUM_GPIOS; i++) {
  69         sysbus_init_child_obj(obj, "gpio[*]", &s->gpio[i], sizeof(s->gpio[i]),
  70                               TYPE_IMX_GPIO);
  71     }
  72 }
  73
  74 static void fsl_imx25_realize(DeviceState *dev, Error **errp)
  75 {
  76     FslIMX25State *s = FSL_IMX25(dev);
  77     uint8_t i;
  78     Error *err = NULL;
  79
  80     object_property_set_bool(OBJECT(&s->cpu), true, "realized", &err);
  81     if (err) {
  82         error_propagate(errp, err);
  83         return;
  84     }
  85
  86     object_property_set_bool(OBJECT(&s->avic), true, "realized", &err);
  87     if (err) {
  88         error_propagate(errp, err);
  89         return;
  90     }
  91     sysbus_mmio_map(SYS_BUS_DEVICE(&s->avic), 0, FSL_IMX25_AVIC_ADDR);
  92     sysbus_connect_irq(SYS_BUS_DEVICE(&s->avic), 0,
  93                        qdev_get_gpio_in(DEVICE(&s->cpu), ARM_CPU_IRQ));
  94     sysbus_connect_irq(SYS_BUS_DEVICE(&s->avic), 1,
  95                        qdev_get_gpio_in(DEVICE(&s->cpu), ARM_CPU_FIQ));
  96
  97     object_property_set_bool(OBJECT(&s->ccm), true, "realized", &err);
  98     if (err) {
  99         error_propagate(errp, err);
 100         return;
 101     }
 102     sysbus_mmio_map(SYS_BUS_DEVICE(&s->ccm), 0, FSL_IMX25_CCM_ADDR);
 103
 104     /* Initialize all UARTs */
 105     for (i = 0; i < FSL_IMX25_NUM_UARTS; i++) {
 106         static const struct {
 107             hwaddr addr;
 108             unsigned int irq;
 109         } serial_table[FSL_IMX25_NUM_UARTS] = {
 110             { FSL_IMX25_UART1_ADDR, FSL_IMX25_UART1_IRQ },
 111             { FSL_IMX25_UART2_ADDR, FSL_IMX25_UART2_IRQ },
 112             { FSL_IMX25_UART3_ADDR, FSL_IMX25_UART3_IRQ },
 113             { FSL_IMX25_UART4_ADDR, FSL_IMX25_UART4_IRQ },
 114             { FSL_IMX25_UART5_ADDR, FSL_IMX25_UART5_IRQ }
 115         };
 116
 117         qdev_prop_set_chr(DEVICE(&s->uart[i]), "chardev", serial_hd(i));
 118
 119         object_property_set_bool(OBJECT(&s->uart[i]), true, "realized", &err);
 120         if (err) {
 121             error_propagate(errp, err);
 122             return;
 123         }
 124         sysbus_mmio_map(SYS_BUS_DEVICE(&s->uart[i]), 0, serial_table[i].addr);
 125         sysbus_connect_irq(SYS_BUS_DEVICE(&s->uart[i]), 0,
 126                            qdev_get_gpio_in(DEVICE(&s->avic),
 127                                             serial_table[i].irq));
 128     }
 129
 130     /* Initialize all GPT timers */
 131     for (i = 0; i < FSL_IMX25_NUM_GPTS; i++) {
 132         static const struct {
 133             hwaddr addr;
 134             unsigned int irq;
 135         } gpt_table[FSL_IMX25_NUM_GPTS] = {
 136             { FSL_IMX25_GPT1_ADDR, FSL_IMX25_GPT1_IRQ },
 137             { FSL_IMX25_GPT2_ADDR, FSL_IMX25_GPT2_IRQ },
 138             { FSL_IMX25_GPT3_ADDR, FSL_IMX25_GPT3_IRQ },
 139             { FSL_IMX25_GPT4_ADDR, FSL_IMX25_GPT4_IRQ }
 140         };
 141
 142         s->gpt[i].ccm = IMX_CCM(&s->ccm);
 143
 144         object_property_set_bool(OBJECT(&s->gpt[i]), true, "realized", &err);
 145         if (err) {
 146             error_propagate(errp, err);
 147             return;
 148         }
 149         sysbus_mmio_map(SYS_BUS_DEVICE(&s->gpt[i]), 0, gpt_table[i].addr);
 150         sysbus_connect_irq(SYS_BUS_DEVICE(&s->gpt[i]), 0,
 151                            qdev_get_gpio_in(DEVICE(&s->avic),
 152                                             gpt_table[i].irq));
 153     }
 154
 155     /* Initialize all EPIT timers */
 156     for (i = 0; i < FSL_IMX25_NUM_EPITS; i++) {
 157         static const struct {
 158             hwaddr addr;
 159             unsigned int irq;
 160         } epit_table[FSL_IMX25_NUM_EPITS] = {
 161             { FSL_IMX25_EPIT1_ADDR, FSL_IMX25_EPIT1_IRQ },
 162             { FSL_IMX25_EPIT2_ADDR, FSL_IMX25_EPIT2_IRQ }
 163         };
 164
 165         s->epit[i].ccm = IMX_CCM(&s->ccm);
 166
 167         object_property_set_bool(OBJECT(&s->epit[i]), true, "realized", &err);
 168         if (err) {
 169             error_propagate(errp, err);
 170             return;
 171         }
 172         sysbus_mmio_map(SYS_BUS_DEVICE(&s->epit[i]), 0, epit_table[i].addr);
 173         sysbus_connect_irq(SYS_BUS_DEVICE(&s->epit[i]), 0,
 174                            qdev_get_gpio_in(DEVICE(&s->avic),
 175                                             epit_table[i].irq));
 176     }
 177
 178     qdev_set_nic_properties(DEVICE(&s->fec), &nd_table[0]);
 179
 180     object_property_set_bool(OBJECT(&s->fec), true, "realized", &err);
 181     if (err) {
 182         error_propagate(errp, err);
 183         return;
 184     }
 185     sysbus_mmio_map(SYS_BUS_DEVICE(&s->fec), 0, FSL_IMX25_FEC_ADDR);
 186     sysbus_connect_irq(SYS_BUS_DEVICE(&s->fec), 0,
 187                        qdev_get_gpio_in(DEVICE(&s->avic), FSL_IMX25_FEC_IRQ));
 188
 189
 190     /* Initialize all I2C */
 191     for (i = 0; i < FSL_IMX25_NUM_I2CS; i++) {
 192         static const struct {
 193             hwaddr addr;
 194             unsigned int irq;
 195         } i2c_table[FSL_IMX25_NUM_I2CS] = {
 196             { FSL_IMX25_I2C1_ADDR, FSL_IMX25_I2C1_IRQ },
 197             { FSL_IMX25_I2C2_ADDR, FSL_IMX25_I2C2_IRQ },
 198             { FSL_IMX25_I2C3_ADDR, FSL_IMX25_I2C3_IRQ }
 199         };
 200
 201         object_property_set_bool(OBJECT(&s->i2c[i]), true, "realized", &err);
 202         if (err) {
 203             error_propagate(errp, err);
 204             return;
 205         }
 206         sysbus_mmio_map(SYS_BUS_DEVICE(&s->i2c[i]), 0, i2c_table[i].addr);
 207         sysbus_connect_irq(SYS_BUS_DEVICE(&s->i2c[i]), 0,
 208                            qdev_get_gpio_in(DEVICE(&s->avic),
 209                                             i2c_table[i].irq));
 210     }
 211
 212     /* Initialize all GPIOs */
 213     for (i = 0; i < FSL_IMX25_NUM_GPIOS; i++) {
 214         static const struct {
 215             hwaddr addr;
 216             unsigned int irq;
 217         } gpio_table[FSL_IMX25_NUM_GPIOS] = {
 218             { FSL_IMX25_GPIO1_ADDR, FSL_IMX25_GPIO1_IRQ },
 219             { FSL_IMX25_GPIO2_ADDR, FSL_IMX25_GPIO2_IRQ },
 220             { FSL_IMX25_GPIO3_ADDR, FSL_IMX25_GPIO3_IRQ },
 221             { FSL_IMX25_GPIO4_ADDR, FSL_IMX25_GPIO4_IRQ }
 222         };
 223
 224         object_property_set_bool(OBJECT(&s->gpio[i]), true, "realized", &err);
 225         if (err) {
 226             error_propagate(errp, err);
 227             return;
 228         }
 229         sysbus_mmio_map(SYS_BUS_DEVICE(&s->gpio[i]), 0, gpio_table[i].addr);
 230         /* Connect GPIO IRQ to PIC */
 231         sysbus_connect_irq(SYS_BUS_DEVICE(&s->gpio[i]), 0,
 232                            qdev_get_gpio_in(DEVICE(&s->avic),
 233                                             gpio_table[i].irq));
 234     }
 235
 236     /* initialize 2 x 16 KB ROM */
 237     memory_region_init_rom(&s->rom[0], NULL,
 238                            "imx25.rom0", FSL_IMX25_ROM0_SIZE, &err);
 239     if (err) {
 240         error_propagate(errp, err);
 241         return;
 242     }
 243     memory_region_add_subregion(get_system_memory(), FSL_IMX25_ROM0_ADDR,
 244                                 &s->rom[0]);
 245     memory_region_init_rom(&s->rom[1], NULL,
 246                            "imx25.rom1", FSL_IMX25_ROM1_SIZE, &err);
 247     if (err) {
 248         error_propagate(errp, err);
 249         return;
 250     }
 251     memory_region_add_subregion(get_system_memory(), FSL_IMX25_ROM1_ADDR,
 252                                 &s->rom[1]);
 253
 254     /* initialize internal RAM (128 KB) */
 255     memory_region_init_ram(&s->iram, NULL, "imx25.iram", FSL_IMX25_IRAM_SIZE,
 256                            &err);
 257     if (err) {
 258         error_propagate(errp, err);
 259         return;
 260     }
 261     memory_region_add_subregion(get_system_memory(), FSL_IMX25_IRAM_ADDR,
 262                                 &s->iram);
 263
 264     /* internal RAM (128 KB) is aliased over 128 MB - 128 KB */
 265     memory_region_init_alias(&s->iram_alias, NULL, "imx25.iram_alias",
 266                              &s->iram, 0, FSL_IMX25_IRAM_ALIAS_SIZE);
 267     memory_region_add_subregion(get_system_memory(), FSL_IMX25_IRAM_ALIAS_ADDR,
 268                                 &s->iram_alias);
 269 }
 270
 271 static void fsl_imx25_class_init(ObjectClass *oc, void *data)
 272 {
 273     DeviceClass *dc = DEVICE_CLASS(oc);
 274
 275     dc->realize = fsl_imx25_realize;
 276     dc->desc = "i.MX25 SOC";
 277     /*
 278      * Reason: uses serial_hds in realize and the imx25 board does not
 279      * support multiple CPUs
 280      */
 281     dc->user_creatable = false;
 282 }
 283
 284 static const TypeInfo fsl_imx25_type_info = {
 285     .name = TYPE_FSL_IMX25,
 286     .parent = TYPE_DEVICE,
 287     .instance_size = sizeof(FslIMX25State),
 288     .instance_init = fsl_imx25_init,
 289     .class_init = fsl_imx25_class_init,
 290 };
 291
 292 static void fsl_imx25_register_types(void)
 293 {
 294     type_register_static(&fsl_imx25_type_info);
 295 }
 296
 297 type_init(fsl_imx25_register_types)