qemu/hw/arm/highbank.c
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   1/*
   2 * Calxeda Highbank SoC emulation
   3 *
   4 * Copyright (c) 2010-2012 Calxeda
   5 *
   6 * This program is free software; you can redistribute it and/or modify it
   7 * under the terms and conditions of the GNU General Public License,
   8 * version 2 or later, as published by the Free Software Foundation.
   9 *
  10 * This program is distributed in the hope it will be useful, but WITHOUT
  11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13 * more details.
  14 *
  15 * You should have received a copy of the GNU General Public License along with
  16 * this program.  If not, see <http://www.gnu.org/licenses/>.
  17 *
  18 */
  19
  20#include "qemu/osdep.h"
  21#include "qemu/datadir.h"
  22#include "qapi/error.h"
  23#include "hw/sysbus.h"
  24#include "migration/vmstate.h"
  25#include "hw/arm/boot.h"
  26#include "hw/loader.h"
  27#include "net/net.h"
  28#include "sysemu/runstate.h"
  29#include "sysemu/sysemu.h"
  30#include "hw/boards.h"
  31#include "qemu/error-report.h"
  32#include "hw/char/pl011.h"
  33#include "hw/ide/ahci.h"
  34#include "hw/cpu/a9mpcore.h"
  35#include "hw/cpu/a15mpcore.h"
  36#include "qemu/log.h"
  37#include "qom/object.h"
  38#include "cpu.h"
  39
  40#define SMP_BOOT_ADDR           0x100
  41#define SMP_BOOT_REG            0x40
  42#define MPCORE_PERIPHBASE       0xfff10000
  43
  44#define MVBAR_ADDR              0x200
  45#define BOARD_SETUP_ADDR        (MVBAR_ADDR + 8 * sizeof(uint32_t))
  46
  47#define NIRQ_GIC                160
  48
  49/* Board init.  */
  50
  51#define NUM_REGS      0x200
  52static void hb_regs_write(void *opaque, hwaddr offset,
  53                          uint64_t value, unsigned size)
  54{
  55    uint32_t *regs = opaque;
  56
  57    if (offset == 0xf00) {
  58        if (value == 1 || value == 2) {
  59            qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET);
  60        } else if (value == 3) {
  61            qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN);
  62        }
  63    }
  64
  65    if (offset / 4 >= NUM_REGS) {
  66        qemu_log_mask(LOG_GUEST_ERROR,
  67                  "highbank: bad write offset 0x%" HWADDR_PRIx "\n", offset);
  68        return;
  69    }
  70    regs[offset / 4] = value;
  71}
  72
  73static uint64_t hb_regs_read(void *opaque, hwaddr offset,
  74                             unsigned size)
  75{
  76    uint32_t value;
  77    uint32_t *regs = opaque;
  78
  79    if (offset / 4 >= NUM_REGS) {
  80        qemu_log_mask(LOG_GUEST_ERROR,
  81                  "highbank: bad read offset 0x%" HWADDR_PRIx "\n", offset);
  82        return 0;
  83    }
  84    value = regs[offset / 4];
  85
  86    if ((offset == 0x100) || (offset == 0x108) || (offset == 0x10C)) {
  87        value |= 0x30000000;
  88    }
  89
  90    return value;
  91}
  92
  93static const MemoryRegionOps hb_mem_ops = {
  94    .read = hb_regs_read,
  95    .write = hb_regs_write,
  96    .endianness = DEVICE_NATIVE_ENDIAN,
  97};
  98
  99#define TYPE_HIGHBANK_REGISTERS "highbank-regs"
 100OBJECT_DECLARE_SIMPLE_TYPE(HighbankRegsState, HIGHBANK_REGISTERS)
 101
 102struct HighbankRegsState {
 103    /*< private >*/
 104    SysBusDevice parent_obj;
 105    /*< public >*/
 106
 107    MemoryRegion iomem;
 108    uint32_t regs[NUM_REGS];
 109};
 110
 111static const VMStateDescription vmstate_highbank_regs = {
 112    .name = "highbank-regs",
 113    .version_id = 0,
 114    .minimum_version_id = 0,
 115    .fields = (VMStateField[]) {
 116        VMSTATE_UINT32_ARRAY(regs, HighbankRegsState, NUM_REGS),
 117        VMSTATE_END_OF_LIST(),
 118    },
 119};
 120
 121static void highbank_regs_reset(DeviceState *dev)
 122{
 123    HighbankRegsState *s = HIGHBANK_REGISTERS(dev);
 124
 125    s->regs[0x40] = 0x05F20121;
 126    s->regs[0x41] = 0x2;
 127    s->regs[0x42] = 0x05F30121;
 128    s->regs[0x43] = 0x05F40121;
 129}
 130
 131static void highbank_regs_init(Object *obj)
 132{
 133    HighbankRegsState *s = HIGHBANK_REGISTERS(obj);
 134    SysBusDevice *dev = SYS_BUS_DEVICE(obj);
 135
 136    memory_region_init_io(&s->iomem, obj, &hb_mem_ops, s->regs,
 137                          "highbank_regs", 0x1000);
 138    sysbus_init_mmio(dev, &s->iomem);
 139}
 140
 141static void highbank_regs_class_init(ObjectClass *klass, void *data)
 142{
 143    DeviceClass *dc = DEVICE_CLASS(klass);
 144
 145    dc->desc = "Calxeda Highbank registers";
 146    dc->vmsd = &vmstate_highbank_regs;
 147    dc->reset = highbank_regs_reset;
 148}
 149
 150static const TypeInfo highbank_regs_info = {
 151    .name          = TYPE_HIGHBANK_REGISTERS,
 152    .parent        = TYPE_SYS_BUS_DEVICE,
 153    .instance_size = sizeof(HighbankRegsState),
 154    .instance_init = highbank_regs_init,
 155    .class_init    = highbank_regs_class_init,
 156};
 157
 158static void highbank_regs_register_types(void)
 159{
 160    type_register_static(&highbank_regs_info);
 161}
 162
 163type_init(highbank_regs_register_types)
 164
 165static struct arm_boot_info highbank_binfo;
 166
 167enum cxmachines {
 168    CALXEDA_HIGHBANK,
 169    CALXEDA_MIDWAY,
 170};
 171
 172/* ram_size must be set to match the upper bound of memory in the
 173 * device tree (linux/arch/arm/boot/dts/highbank.dts), which is
 174 * normally 0xff900000 or -m 4089. When running this board on a
 175 * 32-bit host, set the reg value of memory to 0xf7ff00000 in the
 176 * device tree and pass -m 2047 to QEMU.
 177 */
 178static void calxeda_init(MachineState *machine, enum cxmachines machine_id)
 179{
 180    DeviceState *dev = NULL;
 181    SysBusDevice *busdev;
 182    qemu_irq pic[128];
 183    int n;
 184    unsigned int smp_cpus = machine->smp.cpus;
 185    qemu_irq cpu_irq[4];
 186    qemu_irq cpu_fiq[4];
 187    qemu_irq cpu_virq[4];
 188    qemu_irq cpu_vfiq[4];
 189    MemoryRegion *sysram;
 190    MemoryRegion *sysmem;
 191    char *sysboot_filename;
 192
 193    switch (machine_id) {
 194    case CALXEDA_HIGHBANK:
 195        machine->cpu_type = ARM_CPU_TYPE_NAME("cortex-a9");
 196        break;
 197    case CALXEDA_MIDWAY:
 198        machine->cpu_type = ARM_CPU_TYPE_NAME("cortex-a15");
 199        break;
 200    default:
 201        assert(0);
 202    }
 203
 204    for (n = 0; n < smp_cpus; n++) {
 205        Object *cpuobj;
 206        ARMCPU *cpu;
 207
 208        cpuobj = object_new(machine->cpu_type);
 209        cpu = ARM_CPU(cpuobj);
 210
 211        object_property_set_int(cpuobj, "psci-conduit", QEMU_PSCI_CONDUIT_SMC,
 212                                &error_abort);
 213
 214        if (object_property_find(cpuobj, "reset-cbar")) {
 215            object_property_set_int(cpuobj, "reset-cbar", MPCORE_PERIPHBASE,
 216                                    &error_abort);
 217        }
 218        qdev_realize(DEVICE(cpuobj), NULL, &error_fatal);
 219        cpu_irq[n] = qdev_get_gpio_in(DEVICE(cpu), ARM_CPU_IRQ);
 220        cpu_fiq[n] = qdev_get_gpio_in(DEVICE(cpu), ARM_CPU_FIQ);
 221        cpu_virq[n] = qdev_get_gpio_in(DEVICE(cpu), ARM_CPU_VIRQ);
 222        cpu_vfiq[n] = qdev_get_gpio_in(DEVICE(cpu), ARM_CPU_VFIQ);
 223    }
 224
 225    sysmem = get_system_memory();
 226    /* SDRAM at address zero.  */
 227    memory_region_add_subregion(sysmem, 0, machine->ram);
 228
 229    sysram = g_new(MemoryRegion, 1);
 230    memory_region_init_ram(sysram, NULL, "highbank.sysram", 0x8000,
 231                           &error_fatal);
 232    memory_region_add_subregion(sysmem, 0xfff88000, sysram);
 233    if (machine->firmware != NULL) {
 234        sysboot_filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, machine->firmware);
 235        if (sysboot_filename != NULL) {
 236            if (load_image_targphys(sysboot_filename, 0xfff88000, 0x8000) < 0) {
 237                error_report("Unable to load %s", machine->firmware);
 238                exit(1);
 239            }
 240            g_free(sysboot_filename);
 241        } else {
 242            error_report("Unable to find %s", machine->firmware);
 243            exit(1);
 244        }
 245    }
 246
 247    switch (machine_id) {
 248    case CALXEDA_HIGHBANK:
 249        dev = qdev_new("l2x0");
 250        busdev = SYS_BUS_DEVICE(dev);
 251        sysbus_realize_and_unref(busdev, &error_fatal);
 252        sysbus_mmio_map(busdev, 0, 0xfff12000);
 253
 254        dev = qdev_new(TYPE_A9MPCORE_PRIV);
 255        break;
 256    case CALXEDA_MIDWAY:
 257        dev = qdev_new(TYPE_A15MPCORE_PRIV);
 258        break;
 259    }
 260    qdev_prop_set_uint32(dev, "num-cpu", smp_cpus);
 261    qdev_prop_set_uint32(dev, "num-irq", NIRQ_GIC);
 262    busdev = SYS_BUS_DEVICE(dev);
 263    sysbus_realize_and_unref(busdev, &error_fatal);
 264    sysbus_mmio_map(busdev, 0, MPCORE_PERIPHBASE);
 265    for (n = 0; n < smp_cpus; n++) {
 266        sysbus_connect_irq(busdev, n, cpu_irq[n]);
 267        sysbus_connect_irq(busdev, n + smp_cpus, cpu_fiq[n]);
 268        sysbus_connect_irq(busdev, n + 2 * smp_cpus, cpu_virq[n]);
 269        sysbus_connect_irq(busdev, n + 3 * smp_cpus, cpu_vfiq[n]);
 270    }
 271
 272    for (n = 0; n < 128; n++) {
 273        pic[n] = qdev_get_gpio_in(dev, n);
 274    }
 275
 276    dev = qdev_new("sp804");
 277    qdev_prop_set_uint32(dev, "freq0", 150000000);
 278    qdev_prop_set_uint32(dev, "freq1", 150000000);
 279    busdev = SYS_BUS_DEVICE(dev);
 280    sysbus_realize_and_unref(busdev, &error_fatal);
 281    sysbus_mmio_map(busdev, 0, 0xfff34000);
 282    sysbus_connect_irq(busdev, 0, pic[18]);
 283    pl011_create(0xfff36000, pic[20], serial_hd(0));
 284
 285    dev = qdev_new(TYPE_HIGHBANK_REGISTERS);
 286    busdev = SYS_BUS_DEVICE(dev);
 287    sysbus_realize_and_unref(busdev, &error_fatal);
 288    sysbus_mmio_map(busdev, 0, 0xfff3c000);
 289
 290    sysbus_create_simple("pl061", 0xfff30000, pic[14]);
 291    sysbus_create_simple("pl061", 0xfff31000, pic[15]);
 292    sysbus_create_simple("pl061", 0xfff32000, pic[16]);
 293    sysbus_create_simple("pl061", 0xfff33000, pic[17]);
 294    sysbus_create_simple("pl031", 0xfff35000, pic[19]);
 295    sysbus_create_simple("pl022", 0xfff39000, pic[23]);
 296
 297    sysbus_create_simple(TYPE_SYSBUS_AHCI, 0xffe08000, pic[83]);
 298
 299    if (nd_table[0].used) {
 300        qemu_check_nic_model(&nd_table[0], "xgmac");
 301        dev = qdev_new("xgmac");
 302        qdev_set_nic_properties(dev, &nd_table[0]);
 303        sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
 304        sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, 0xfff50000);
 305        sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, pic[77]);
 306        sysbus_connect_irq(SYS_BUS_DEVICE(dev), 1, pic[78]);
 307        sysbus_connect_irq(SYS_BUS_DEVICE(dev), 2, pic[79]);
 308
 309        qemu_check_nic_model(&nd_table[1], "xgmac");
 310        dev = qdev_new("xgmac");
 311        qdev_set_nic_properties(dev, &nd_table[1]);
 312        sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
 313        sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, 0xfff51000);
 314        sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, pic[80]);
 315        sysbus_connect_irq(SYS_BUS_DEVICE(dev), 1, pic[81]);
 316        sysbus_connect_irq(SYS_BUS_DEVICE(dev), 2, pic[82]);
 317    }
 318
 319    /* TODO create and connect IDE devices for ide_drive_get() */
 320
 321    highbank_binfo.ram_size = machine->ram_size;
 322    /* highbank requires a dtb in order to boot, and the dtb will override
 323     * the board ID. The following value is ignored, so set it to -1 to be
 324     * clear that the value is meaningless.
 325     */
 326    highbank_binfo.board_id = -1;
 327    highbank_binfo.loader_start = 0;
 328    highbank_binfo.board_setup_addr = BOARD_SETUP_ADDR;
 329    highbank_binfo.psci_conduit = QEMU_PSCI_CONDUIT_SMC;
 330
 331    arm_load_kernel(ARM_CPU(first_cpu), machine, &highbank_binfo);
 332}
 333
 334static void highbank_init(MachineState *machine)
 335{
 336    calxeda_init(machine, CALXEDA_HIGHBANK);
 337}
 338
 339static void midway_init(MachineState *machine)
 340{
 341    calxeda_init(machine, CALXEDA_MIDWAY);
 342}
 343
 344static void highbank_class_init(ObjectClass *oc, void *data)
 345{
 346    MachineClass *mc = MACHINE_CLASS(oc);
 347
 348    mc->desc = "Calxeda Highbank (ECX-1000)";
 349    mc->init = highbank_init;
 350    mc->block_default_type = IF_IDE;
 351    mc->units_per_default_bus = 1;
 352    mc->max_cpus = 4;
 353    mc->ignore_memory_transaction_failures = true;
 354    mc->default_ram_id = "highbank.dram";
 355}
 356
 357static const TypeInfo highbank_type = {
 358    .name = MACHINE_TYPE_NAME("highbank"),
 359    .parent = TYPE_MACHINE,
 360    .class_init = highbank_class_init,
 361};
 362
 363static void midway_class_init(ObjectClass *oc, void *data)
 364{
 365    MachineClass *mc = MACHINE_CLASS(oc);
 366
 367    mc->desc = "Calxeda Midway (ECX-2000)";
 368    mc->init = midway_init;
 369    mc->block_default_type = IF_IDE;
 370    mc->units_per_default_bus = 1;
 371    mc->max_cpus = 4;
 372    mc->ignore_memory_transaction_failures = true;
 373    mc->default_ram_id = "highbank.dram";
 374}
 375
 376static const TypeInfo midway_type = {
 377    .name = MACHINE_TYPE_NAME("midway"),
 378    .parent = TYPE_MACHINE,
 379    .class_init = midway_class_init,
 380};
 381
 382static void calxeda_machines_init(void)
 383{
 384    type_register_static(&highbank_type);
 385    type_register_static(&midway_type);
 386}
 387
 388type_init(calxeda_machines_init)
 389