qemu/hw/arm/realview.c
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   1/*
   2 * ARM RealView Baseboard System emulation.
   3 *
   4 * Copyright (c) 2006-2007 CodeSourcery.
   5 * Written by Paul Brook
   6 *
   7 * This code is licensed under the GPL.
   8 */
   9
  10#include "qemu/osdep.h"
  11#include "qapi/error.h"
  12#include "cpu.h"
  13#include "hw/sysbus.h"
  14#include "hw/arm/boot.h"
  15#include "hw/arm/primecell.h"
  16#include "hw/core/split-irq.h"
  17#include "hw/net/lan9118.h"
  18#include "hw/net/smc91c111.h"
  19#include "hw/pci/pci.h"
  20#include "hw/qdev-core.h"
  21#include "net/net.h"
  22#include "sysemu/sysemu.h"
  23#include "hw/boards.h"
  24#include "hw/i2c/i2c.h"
  25#include "qemu/error-report.h"
  26#include "hw/char/pl011.h"
  27#include "hw/cpu/a9mpcore.h"
  28#include "hw/intc/realview_gic.h"
  29#include "hw/irq.h"
  30#include "hw/i2c/arm_sbcon_i2c.h"
  31#include "hw/sd/sd.h"
  32
  33#define SMP_BOOT_ADDR 0xe0000000
  34#define SMP_BOOTREG_ADDR 0x10000030
  35
  36/* Board init.  */
  37
  38static struct arm_boot_info realview_binfo = {
  39    .smp_loader_start = SMP_BOOT_ADDR,
  40    .smp_bootreg_addr = SMP_BOOTREG_ADDR,
  41};
  42
  43/* The following two lists must be consistent.  */
  44enum realview_board_type {
  45    BOARD_EB,
  46    BOARD_EB_MPCORE,
  47    BOARD_PB_A8,
  48    BOARD_PBX_A9,
  49};
  50
  51static const int realview_board_id[] = {
  52    0x33b,
  53    0x33b,
  54    0x769,
  55    0x76d
  56};
  57
  58static void split_irq_from_named(DeviceState *src, const char* outname,
  59                                 qemu_irq out1, qemu_irq out2) {
  60    DeviceState *splitter = qdev_new(TYPE_SPLIT_IRQ);
  61
  62    qdev_prop_set_uint32(splitter, "num-lines", 2);
  63
  64    qdev_realize_and_unref(splitter, NULL, &error_fatal);
  65
  66    qdev_connect_gpio_out(splitter, 0, out1);
  67    qdev_connect_gpio_out(splitter, 1, out2);
  68    qdev_connect_gpio_out_named(src, outname, 0,
  69                                qdev_get_gpio_in(splitter, 0));
  70}
  71
  72static void realview_init(MachineState *machine,
  73                          enum realview_board_type board_type)
  74{
  75    ARMCPU *cpu = NULL;
  76    CPUARMState *env;
  77    MemoryRegion *sysmem = get_system_memory();
  78    MemoryRegion *ram_lo;
  79    MemoryRegion *ram_hi = g_new(MemoryRegion, 1);
  80    MemoryRegion *ram_alias = g_new(MemoryRegion, 1);
  81    MemoryRegion *ram_hack = g_new(MemoryRegion, 1);
  82    DeviceState *dev, *sysctl, *gpio2, *pl041;
  83    SysBusDevice *busdev;
  84    qemu_irq pic[64];
  85    PCIBus *pci_bus = NULL;
  86    NICInfo *nd;
  87    DriveInfo *dinfo;
  88    I2CBus *i2c;
  89    int n;
  90    unsigned int smp_cpus = machine->smp.cpus;
  91    int done_nic = 0;
  92    qemu_irq cpu_irq[4];
  93    int is_mpcore = 0;
  94    int is_pb = 0;
  95    uint32_t proc_id = 0;
  96    uint32_t sys_id;
  97    ram_addr_t low_ram_size;
  98    ram_addr_t ram_size = machine->ram_size;
  99    hwaddr periphbase = 0;
 100
 101    switch (board_type) {
 102    case BOARD_EB:
 103        break;
 104    case BOARD_EB_MPCORE:
 105        is_mpcore = 1;
 106        periphbase = 0x10100000;
 107        break;
 108    case BOARD_PB_A8:
 109        is_pb = 1;
 110        break;
 111    case BOARD_PBX_A9:
 112        is_mpcore = 1;
 113        is_pb = 1;
 114        periphbase = 0x1f000000;
 115        break;
 116    }
 117
 118    for (n = 0; n < smp_cpus; n++) {
 119        Object *cpuobj = object_new(machine->cpu_type);
 120
 121        /* By default A9,A15 and ARM1176 CPUs have EL3 enabled.  This board
 122         * does not currently support EL3 so the CPU EL3 property is disabled
 123         * before realization.
 124         */
 125        if (object_property_find(cpuobj, "has_el3")) {
 126            object_property_set_bool(cpuobj, "has_el3", false, &error_fatal);
 127        }
 128
 129        if (is_pb && is_mpcore) {
 130            object_property_set_int(cpuobj, "reset-cbar", periphbase,
 131                                    &error_fatal);
 132        }
 133
 134        qdev_realize(DEVICE(cpuobj), NULL, &error_fatal);
 135
 136        cpu_irq[n] = qdev_get_gpio_in(DEVICE(cpuobj), ARM_CPU_IRQ);
 137    }
 138    cpu = ARM_CPU(first_cpu);
 139    env = &cpu->env;
 140    if (arm_feature(env, ARM_FEATURE_V7)) {
 141        if (is_mpcore) {
 142            proc_id = 0x0c000000;
 143        } else {
 144            proc_id = 0x0e000000;
 145        }
 146    } else if (arm_feature(env, ARM_FEATURE_V6K)) {
 147        proc_id = 0x06000000;
 148    } else if (arm_feature(env, ARM_FEATURE_V6)) {
 149        proc_id = 0x04000000;
 150    } else {
 151        proc_id = 0x02000000;
 152    }
 153
 154    if (is_pb && ram_size > 0x20000000) {
 155        /* Core tile RAM.  */
 156        ram_lo = g_new(MemoryRegion, 1);
 157        low_ram_size = ram_size - 0x20000000;
 158        ram_size = 0x20000000;
 159        memory_region_init_ram(ram_lo, NULL, "realview.lowmem", low_ram_size,
 160                               &error_fatal);
 161        memory_region_add_subregion(sysmem, 0x20000000, ram_lo);
 162    }
 163
 164    memory_region_init_ram(ram_hi, NULL, "realview.highmem", ram_size,
 165                           &error_fatal);
 166    low_ram_size = ram_size;
 167    if (low_ram_size > 0x10000000)
 168      low_ram_size = 0x10000000;
 169    /* SDRAM at address zero.  */
 170    memory_region_init_alias(ram_alias, NULL, "realview.alias",
 171                             ram_hi, 0, low_ram_size);
 172    memory_region_add_subregion(sysmem, 0, ram_alias);
 173    if (is_pb) {
 174        /* And again at a high address.  */
 175        memory_region_add_subregion(sysmem, 0x70000000, ram_hi);
 176    } else {
 177        ram_size = low_ram_size;
 178    }
 179
 180    sys_id = is_pb ? 0x01780500 : 0xc1400400;
 181    sysctl = qdev_new("realview_sysctl");
 182    qdev_prop_set_uint32(sysctl, "sys_id", sys_id);
 183    qdev_prop_set_uint32(sysctl, "proc_id", proc_id);
 184    sysbus_realize_and_unref(SYS_BUS_DEVICE(sysctl), &error_fatal);
 185    sysbus_mmio_map(SYS_BUS_DEVICE(sysctl), 0, 0x10000000);
 186
 187    if (is_mpcore) {
 188        dev = qdev_new(is_pb ? TYPE_A9MPCORE_PRIV : "realview_mpcore");
 189        qdev_prop_set_uint32(dev, "num-cpu", smp_cpus);
 190        busdev = SYS_BUS_DEVICE(dev);
 191        sysbus_realize_and_unref(busdev, &error_fatal);
 192        sysbus_mmio_map(busdev, 0, periphbase);
 193        for (n = 0; n < smp_cpus; n++) {
 194            sysbus_connect_irq(busdev, n, cpu_irq[n]);
 195        }
 196        sysbus_create_varargs("l2x0", periphbase + 0x2000, NULL);
 197        /* Both A9 and 11MPCore put the GIC CPU i/f at base + 0x100 */
 198        realview_binfo.gic_cpu_if_addr = periphbase + 0x100;
 199    } else {
 200        uint32_t gic_addr = is_pb ? 0x1e000000 : 0x10040000;
 201        /* For now just create the nIRQ GIC, and ignore the others.  */
 202        dev = sysbus_create_simple(TYPE_REALVIEW_GIC, gic_addr, cpu_irq[0]);
 203    }
 204    for (n = 0; n < 64; n++) {
 205        pic[n] = qdev_get_gpio_in(dev, n);
 206    }
 207
 208    pl041 = qdev_new("pl041");
 209    qdev_prop_set_uint32(pl041, "nc_fifo_depth", 512);
 210    sysbus_realize_and_unref(SYS_BUS_DEVICE(pl041), &error_fatal);
 211    sysbus_mmio_map(SYS_BUS_DEVICE(pl041), 0, 0x10004000);
 212    sysbus_connect_irq(SYS_BUS_DEVICE(pl041), 0, pic[19]);
 213
 214    sysbus_create_simple("pl050_keyboard", 0x10006000, pic[20]);
 215    sysbus_create_simple("pl050_mouse", 0x10007000, pic[21]);
 216
 217    pl011_create(0x10009000, pic[12], serial_hd(0));
 218    pl011_create(0x1000a000, pic[13], serial_hd(1));
 219    pl011_create(0x1000b000, pic[14], serial_hd(2));
 220    pl011_create(0x1000c000, pic[15], serial_hd(3));
 221
 222    /* DMA controller is optional, apparently.  */
 223    dev = qdev_new("pl081");
 224    object_property_set_link(OBJECT(dev), "downstream", OBJECT(sysmem),
 225                             &error_fatal);
 226    busdev = SYS_BUS_DEVICE(dev);
 227    sysbus_realize_and_unref(busdev, &error_fatal);
 228    sysbus_mmio_map(busdev, 0, 0x10030000);
 229    sysbus_connect_irq(busdev, 0, pic[24]);
 230
 231    sysbus_create_simple("sp804", 0x10011000, pic[4]);
 232    sysbus_create_simple("sp804", 0x10012000, pic[5]);
 233
 234    sysbus_create_simple("pl061", 0x10013000, pic[6]);
 235    sysbus_create_simple("pl061", 0x10014000, pic[7]);
 236    gpio2 = sysbus_create_simple("pl061", 0x10015000, pic[8]);
 237
 238    sysbus_create_simple("pl111", 0x10020000, pic[23]);
 239
 240    dev = sysbus_create_varargs("pl181", 0x10005000, pic[17], pic[18], NULL);
 241    /* Wire up MMC card detect and read-only signals. These have
 242     * to go to both the PL061 GPIO and the sysctl register.
 243     * Note that the PL181 orders these lines (readonly,inserted)
 244     * and the PL061 has them the other way about. Also the card
 245     * detect line is inverted.
 246     */
 247    split_irq_from_named(dev, "card-read-only",
 248                   qdev_get_gpio_in(sysctl, ARM_SYSCTL_GPIO_MMC_WPROT),
 249                   qdev_get_gpio_in(gpio2, 1));
 250
 251    split_irq_from_named(dev, "card-inserted",
 252                   qdev_get_gpio_in(sysctl, ARM_SYSCTL_GPIO_MMC_CARDIN),
 253                   qemu_irq_invert(qdev_get_gpio_in(gpio2, 0)));
 254
 255    dinfo = drive_get(IF_SD, 0, 0);
 256    if (dinfo) {
 257        DeviceState *card;
 258
 259        card = qdev_new(TYPE_SD_CARD);
 260        qdev_prop_set_drive_err(card, "drive", blk_by_legacy_dinfo(dinfo),
 261                                &error_fatal);
 262        qdev_realize_and_unref(card, qdev_get_child_bus(dev, "sd-bus"),
 263                               &error_fatal);
 264    }
 265
 266    sysbus_create_simple("pl031", 0x10017000, pic[10]);
 267
 268    if (!is_pb) {
 269        dev = qdev_new("realview_pci");
 270        busdev = SYS_BUS_DEVICE(dev);
 271        sysbus_realize_and_unref(busdev, &error_fatal);
 272        sysbus_mmio_map(busdev, 0, 0x10019000); /* PCI controller registers */
 273        sysbus_mmio_map(busdev, 1, 0x60000000); /* PCI self-config */
 274        sysbus_mmio_map(busdev, 2, 0x61000000); /* PCI config */
 275        sysbus_mmio_map(busdev, 3, 0x62000000); /* PCI I/O */
 276        sysbus_mmio_map(busdev, 4, 0x63000000); /* PCI memory window 1 */
 277        sysbus_mmio_map(busdev, 5, 0x64000000); /* PCI memory window 2 */
 278        sysbus_mmio_map(busdev, 6, 0x68000000); /* PCI memory window 3 */
 279        sysbus_connect_irq(busdev, 0, pic[48]);
 280        sysbus_connect_irq(busdev, 1, pic[49]);
 281        sysbus_connect_irq(busdev, 2, pic[50]);
 282        sysbus_connect_irq(busdev, 3, pic[51]);
 283        pci_bus = (PCIBus *)qdev_get_child_bus(dev, "pci");
 284        if (machine_usb(machine)) {
 285            pci_create_simple(pci_bus, -1, "pci-ohci");
 286        }
 287        n = drive_get_max_bus(IF_SCSI);
 288        while (n >= 0) {
 289            dev = DEVICE(pci_create_simple(pci_bus, -1, "lsi53c895a"));
 290            lsi53c8xx_handle_legacy_cmdline(dev);
 291            n--;
 292        }
 293    }
 294    for(n = 0; n < nb_nics; n++) {
 295        nd = &nd_table[n];
 296
 297        if (!done_nic && (!nd->model ||
 298                    strcmp(nd->model, is_pb ? "lan9118" : "smc91c111") == 0)) {
 299            if (is_pb) {
 300                lan9118_init(nd, 0x4e000000, pic[28]);
 301            } else {
 302                smc91c111_init(nd, 0x4e000000, pic[28]);
 303            }
 304            done_nic = 1;
 305        } else {
 306            if (pci_bus) {
 307                pci_nic_init_nofail(nd, pci_bus, "rtl8139", NULL);
 308            }
 309        }
 310    }
 311
 312    dev = sysbus_create_simple(TYPE_VERSATILE_I2C, 0x10002000, NULL);
 313    i2c = (I2CBus *)qdev_get_child_bus(dev, "i2c");
 314    i2c_slave_create_simple(i2c, "ds1338", 0x68);
 315
 316    /* Memory map for RealView Emulation Baseboard:  */
 317    /* 0x10000000 System registers.  */
 318    /*  0x10001000 System controller.  */
 319    /* 0x10002000 Two-Wire Serial Bus.  */
 320    /* 0x10003000 Reserved.  */
 321    /*  0x10004000 AACI.  */
 322    /*  0x10005000 MCI.  */
 323    /* 0x10006000 KMI0.  */
 324    /* 0x10007000 KMI1.  */
 325    /*  0x10008000 Character LCD. (EB) */
 326    /* 0x10009000 UART0.  */
 327    /* 0x1000a000 UART1.  */
 328    /* 0x1000b000 UART2.  */
 329    /* 0x1000c000 UART3.  */
 330    /*  0x1000d000 SSPI.  */
 331    /*  0x1000e000 SCI.  */
 332    /* 0x1000f000 Reserved.  */
 333    /*  0x10010000 Watchdog.  */
 334    /* 0x10011000 Timer 0+1.  */
 335    /* 0x10012000 Timer 2+3.  */
 336    /*  0x10013000 GPIO 0.  */
 337    /*  0x10014000 GPIO 1.  */
 338    /*  0x10015000 GPIO 2.  */
 339    /*  0x10002000 Two-Wire Serial Bus - DVI. (PB) */
 340    /* 0x10017000 RTC.  */
 341    /*  0x10018000 DMC.  */
 342    /*  0x10019000 PCI controller config.  */
 343    /*  0x10020000 CLCD.  */
 344    /* 0x10030000 DMA Controller.  */
 345    /* 0x10040000 GIC1. (EB) */
 346    /*  0x10050000 GIC2. (EB) */
 347    /*  0x10060000 GIC3. (EB) */
 348    /*  0x10070000 GIC4. (EB) */
 349    /*  0x10080000 SMC.  */
 350    /* 0x1e000000 GIC1. (PB) */
 351    /*  0x1e001000 GIC2. (PB) */
 352    /*  0x1e002000 GIC3. (PB) */
 353    /*  0x1e003000 GIC4. (PB) */
 354    /*  0x40000000 NOR flash.  */
 355    /*  0x44000000 DoC flash.  */
 356    /*  0x48000000 SRAM.  */
 357    /*  0x4c000000 Configuration flash.  */
 358    /* 0x4e000000 Ethernet.  */
 359    /*  0x4f000000 USB.  */
 360    /*  0x50000000 PISMO.  */
 361    /*  0x54000000 PISMO.  */
 362    /*  0x58000000 PISMO.  */
 363    /*  0x5c000000 PISMO.  */
 364    /* 0x60000000 PCI.  */
 365    /* 0x60000000 PCI Self Config.  */
 366    /* 0x61000000 PCI Config.  */
 367    /* 0x62000000 PCI IO.  */
 368    /* 0x63000000 PCI mem 0.  */
 369    /* 0x64000000 PCI mem 1.  */
 370    /* 0x68000000 PCI mem 2.  */
 371
 372    /* ??? Hack to map an additional page of ram for the secondary CPU
 373       startup code.  I guess this works on real hardware because the
 374       BootROM happens to be in ROM/flash or in memory that isn't clobbered
 375       until after Linux boots the secondary CPUs.  */
 376    memory_region_init_ram(ram_hack, NULL, "realview.hack", 0x1000,
 377                           &error_fatal);
 378    memory_region_add_subregion(sysmem, SMP_BOOT_ADDR, ram_hack);
 379
 380    realview_binfo.ram_size = ram_size;
 381    realview_binfo.board_id = realview_board_id[board_type];
 382    realview_binfo.loader_start = (board_type == BOARD_PB_A8 ? 0x70000000 : 0);
 383    arm_load_kernel(ARM_CPU(first_cpu), machine, &realview_binfo);
 384}
 385
 386static void realview_eb_init(MachineState *machine)
 387{
 388    realview_init(machine, BOARD_EB);
 389}
 390
 391static void realview_eb_mpcore_init(MachineState *machine)
 392{
 393    realview_init(machine, BOARD_EB_MPCORE);
 394}
 395
 396static void realview_pb_a8_init(MachineState *machine)
 397{
 398    realview_init(machine, BOARD_PB_A8);
 399}
 400
 401static void realview_pbx_a9_init(MachineState *machine)
 402{
 403    realview_init(machine, BOARD_PBX_A9);
 404}
 405
 406static void realview_eb_class_init(ObjectClass *oc, void *data)
 407{
 408    MachineClass *mc = MACHINE_CLASS(oc);
 409
 410    mc->desc = "ARM RealView Emulation Baseboard (ARM926EJ-S)";
 411    mc->init = realview_eb_init;
 412    mc->block_default_type = IF_SCSI;
 413    mc->ignore_memory_transaction_failures = true;
 414    mc->default_cpu_type = ARM_CPU_TYPE_NAME("arm926");
 415}
 416
 417static const TypeInfo realview_eb_type = {
 418    .name = MACHINE_TYPE_NAME("realview-eb"),
 419    .parent = TYPE_MACHINE,
 420    .class_init = realview_eb_class_init,
 421};
 422
 423static void realview_eb_mpcore_class_init(ObjectClass *oc, void *data)
 424{
 425    MachineClass *mc = MACHINE_CLASS(oc);
 426
 427    mc->desc = "ARM RealView Emulation Baseboard (ARM11MPCore)";
 428    mc->init = realview_eb_mpcore_init;
 429    mc->block_default_type = IF_SCSI;
 430    mc->max_cpus = 4;
 431    mc->ignore_memory_transaction_failures = true;
 432    mc->default_cpu_type = ARM_CPU_TYPE_NAME("arm11mpcore");
 433}
 434
 435static const TypeInfo realview_eb_mpcore_type = {
 436    .name = MACHINE_TYPE_NAME("realview-eb-mpcore"),
 437    .parent = TYPE_MACHINE,
 438    .class_init = realview_eb_mpcore_class_init,
 439};
 440
 441static void realview_pb_a8_class_init(ObjectClass *oc, void *data)
 442{
 443    MachineClass *mc = MACHINE_CLASS(oc);
 444
 445    mc->desc = "ARM RealView Platform Baseboard for Cortex-A8";
 446    mc->init = realview_pb_a8_init;
 447    mc->ignore_memory_transaction_failures = true;
 448    mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-a8");
 449}
 450
 451static const TypeInfo realview_pb_a8_type = {
 452    .name = MACHINE_TYPE_NAME("realview-pb-a8"),
 453    .parent = TYPE_MACHINE,
 454    .class_init = realview_pb_a8_class_init,
 455};
 456
 457static void realview_pbx_a9_class_init(ObjectClass *oc, void *data)
 458{
 459    MachineClass *mc = MACHINE_CLASS(oc);
 460
 461    mc->desc = "ARM RealView Platform Baseboard Explore for Cortex-A9";
 462    mc->init = realview_pbx_a9_init;
 463    mc->max_cpus = 4;
 464    mc->ignore_memory_transaction_failures = true;
 465    mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-a9");
 466}
 467
 468static const TypeInfo realview_pbx_a9_type = {
 469    .name = MACHINE_TYPE_NAME("realview-pbx-a9"),
 470    .parent = TYPE_MACHINE,
 471    .class_init = realview_pbx_a9_class_init,
 472};
 473
 474static void realview_machine_init(void)
 475{
 476    type_register_static(&realview_eb_type);
 477    type_register_static(&realview_eb_mpcore_type);
 478    type_register_static(&realview_pb_a8_type);
 479    type_register_static(&realview_pbx_a9_type);
 480}
 481
 482type_init(realview_machine_init)
 483