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 "qapi/error.h"
  22#include "hw/sysbus.h"
  23#include "hw/arm/arm.h"
  24#include "hw/devices.h"
  25#include "hw/loader.h"
  26#include "net/net.h"
  27#include "sysemu/kvm.h"
  28#include "sysemu/sysemu.h"
  29#include "hw/boards.h"
  30#include "sysemu/block-backend.h"
  31#include "exec/address-spaces.h"
  32#include "qemu/error-report.h"
  33
  34#define SMP_BOOT_ADDR           0x100
  35#define SMP_BOOT_REG            0x40
  36#define MPCORE_PERIPHBASE       0xfff10000
  37
  38#define MVBAR_ADDR              0x200
  39#define BOARD_SETUP_ADDR        (MVBAR_ADDR + 8 * sizeof(uint32_t))
  40
  41#define NIRQ_GIC                160
  42
  43/* Board init.  */
  44
  45static void hb_write_board_setup(ARMCPU *cpu,
  46                                 const struct arm_boot_info *info)
  47{
  48    arm_write_secure_board_setup_dummy_smc(cpu, info, MVBAR_ADDR);
  49}
  50
  51static void hb_write_secondary(ARMCPU *cpu, const struct arm_boot_info *info)
  52{
  53    int n;
  54    uint32_t smpboot[] = {
  55        0xee100fb0, /* mrc p15, 0, r0, c0, c0, 5 - read current core id */
  56        0xe210000f, /* ands r0, r0, #0x0f */
  57        0xe3a03040, /* mov r3, #0x40 - jump address is 0x40 + 0x10 * core id */
  58        0xe0830200, /* add r0, r3, r0, lsl #4 */
  59        0xe59f2024, /* ldr r2, privbase */
  60        0xe3a01001, /* mov r1, #1 */
  61        0xe5821100, /* str r1, [r2, #256] - set GICC_CTLR.Enable */
  62        0xe3a010ff, /* mov r1, #0xff */
  63        0xe5821104, /* str r1, [r2, #260] - set GICC_PMR.Priority to 0xff */
  64        0xf57ff04f, /* dsb */
  65        0xe320f003, /* wfi */
  66        0xe5901000, /* ldr     r1, [r0] */
  67        0xe1110001, /* tst     r1, r1 */
  68        0x0afffffb, /* beq     <wfi> */
  69        0xe12fff11, /* bx      r1 */
  70        MPCORE_PERIPHBASE   /* privbase: MPCore peripheral base address.  */
  71    };
  72    for (n = 0; n < ARRAY_SIZE(smpboot); n++) {
  73        smpboot[n] = tswap32(smpboot[n]);
  74    }
  75    rom_add_blob_fixed("smpboot", smpboot, sizeof(smpboot), SMP_BOOT_ADDR);
  76}
  77
  78static void hb_reset_secondary(ARMCPU *cpu, const struct arm_boot_info *info)
  79{
  80    CPUARMState *env = &cpu->env;
  81
  82    switch (info->nb_cpus) {
  83    case 4:
  84        address_space_stl_notdirty(&address_space_memory,
  85                                   SMP_BOOT_REG + 0x30, 0,
  86                                   MEMTXATTRS_UNSPECIFIED, NULL);
  87    case 3:
  88        address_space_stl_notdirty(&address_space_memory,
  89                                   SMP_BOOT_REG + 0x20, 0,
  90                                   MEMTXATTRS_UNSPECIFIED, NULL);
  91    case 2:
  92        address_space_stl_notdirty(&address_space_memory,
  93                                   SMP_BOOT_REG + 0x10, 0,
  94                                   MEMTXATTRS_UNSPECIFIED, NULL);
  95        env->regs[15] = SMP_BOOT_ADDR;
  96        break;
  97    default:
  98        break;
  99    }
 100}
 101
 102#define NUM_REGS      0x200
 103static void hb_regs_write(void *opaque, hwaddr offset,
 104                          uint64_t value, unsigned size)
 105{
 106    uint32_t *regs = opaque;
 107
 108    if (offset == 0xf00) {
 109        if (value == 1 || value == 2) {
 110            qemu_system_reset_request();
 111        } else if (value == 3) {
 112            qemu_system_shutdown_request();
 113        }
 114    }
 115
 116    regs[offset/4] = value;
 117}
 118
 119static uint64_t hb_regs_read(void *opaque, hwaddr offset,
 120                             unsigned size)
 121{
 122    uint32_t *regs = opaque;
 123    uint32_t value = regs[offset/4];
 124
 125    if ((offset == 0x100) || (offset == 0x108) || (offset == 0x10C)) {
 126        value |= 0x30000000;
 127    }
 128
 129    return value;
 130}
 131
 132static const MemoryRegionOps hb_mem_ops = {
 133    .read = hb_regs_read,
 134    .write = hb_regs_write,
 135    .endianness = DEVICE_NATIVE_ENDIAN,
 136};
 137
 138#define TYPE_HIGHBANK_REGISTERS "highbank-regs"
 139#define HIGHBANK_REGISTERS(obj) \
 140    OBJECT_CHECK(HighbankRegsState, (obj), TYPE_HIGHBANK_REGISTERS)
 141
 142typedef struct {
 143    /*< private >*/
 144    SysBusDevice parent_obj;
 145    /*< public >*/
 146
 147    MemoryRegion iomem;
 148    uint32_t regs[NUM_REGS];
 149} HighbankRegsState;
 150
 151static VMStateDescription vmstate_highbank_regs = {
 152    .name = "highbank-regs",
 153    .version_id = 0,
 154    .minimum_version_id = 0,
 155    .fields = (VMStateField[]) {
 156        VMSTATE_UINT32_ARRAY(regs, HighbankRegsState, NUM_REGS),
 157        VMSTATE_END_OF_LIST(),
 158    },
 159};
 160
 161static void highbank_regs_reset(DeviceState *dev)
 162{
 163    HighbankRegsState *s = HIGHBANK_REGISTERS(dev);
 164
 165    s->regs[0x40] = 0x05F20121;
 166    s->regs[0x41] = 0x2;
 167    s->regs[0x42] = 0x05F30121;
 168    s->regs[0x43] = 0x05F40121;
 169}
 170
 171static int highbank_regs_init(SysBusDevice *dev)
 172{
 173    HighbankRegsState *s = HIGHBANK_REGISTERS(dev);
 174
 175    memory_region_init_io(&s->iomem, OBJECT(s), &hb_mem_ops, s->regs,
 176                          "highbank_regs", 0x1000);
 177    sysbus_init_mmio(dev, &s->iomem);
 178
 179    return 0;
 180}
 181
 182static void highbank_regs_class_init(ObjectClass *klass, void *data)
 183{
 184    SysBusDeviceClass *sbc = SYS_BUS_DEVICE_CLASS(klass);
 185    DeviceClass *dc = DEVICE_CLASS(klass);
 186
 187    sbc->init = highbank_regs_init;
 188    dc->desc = "Calxeda Highbank registers";
 189    dc->vmsd = &vmstate_highbank_regs;
 190    dc->reset = highbank_regs_reset;
 191}
 192
 193static const TypeInfo highbank_regs_info = {
 194    .name          = TYPE_HIGHBANK_REGISTERS,
 195    .parent        = TYPE_SYS_BUS_DEVICE,
 196    .instance_size = sizeof(HighbankRegsState),
 197    .class_init    = highbank_regs_class_init,
 198};
 199
 200static void highbank_regs_register_types(void)
 201{
 202    type_register_static(&highbank_regs_info);
 203}
 204
 205type_init(highbank_regs_register_types)
 206
 207static struct arm_boot_info highbank_binfo;
 208
 209enum cxmachines {
 210    CALXEDA_HIGHBANK,
 211    CALXEDA_MIDWAY,
 212};
 213
 214/* ram_size must be set to match the upper bound of memory in the
 215 * device tree (linux/arch/arm/boot/dts/highbank.dts), which is
 216 * normally 0xff900000 or -m 4089. When running this board on a
 217 * 32-bit host, set the reg value of memory to 0xf7ff00000 in the
 218 * device tree and pass -m 2047 to QEMU.
 219 */
 220static void calxeda_init(MachineState *machine, enum cxmachines machine_id)
 221{
 222    ram_addr_t ram_size = machine->ram_size;
 223    const char *cpu_model = machine->cpu_model;
 224    const char *kernel_filename = machine->kernel_filename;
 225    const char *kernel_cmdline = machine->kernel_cmdline;
 226    const char *initrd_filename = machine->initrd_filename;
 227    DeviceState *dev = NULL;
 228    SysBusDevice *busdev;
 229    qemu_irq pic[128];
 230    int n;
 231    qemu_irq cpu_irq[4];
 232    qemu_irq cpu_fiq[4];
 233    MemoryRegion *sysram;
 234    MemoryRegion *dram;
 235    MemoryRegion *sysmem;
 236    char *sysboot_filename;
 237
 238    switch (machine_id) {
 239    case CALXEDA_HIGHBANK:
 240        cpu_model = "cortex-a9";
 241        break;
 242    case CALXEDA_MIDWAY:
 243        cpu_model = "cortex-a15";
 244        break;
 245    }
 246
 247    for (n = 0; n < smp_cpus; n++) {
 248        ObjectClass *oc = cpu_class_by_name(TYPE_ARM_CPU, cpu_model);
 249        Object *cpuobj;
 250        ARMCPU *cpu;
 251
 252        cpuobj = object_new(object_class_get_name(oc));
 253        cpu = ARM_CPU(cpuobj);
 254
 255        object_property_set_int(cpuobj, QEMU_PSCI_CONDUIT_SMC,
 256                                "psci-conduit", &error_abort);
 257
 258        if (n) {
 259            /* Secondary CPUs start in PSCI powered-down state */
 260            object_property_set_bool(cpuobj, true,
 261                                     "start-powered-off", &error_abort);
 262        }
 263
 264        if (object_property_find(cpuobj, "reset-cbar", NULL)) {
 265            object_property_set_int(cpuobj, MPCORE_PERIPHBASE,
 266                                    "reset-cbar", &error_abort);
 267        }
 268        object_property_set_bool(cpuobj, true, "realized", &error_fatal);
 269        cpu_irq[n] = qdev_get_gpio_in(DEVICE(cpu), ARM_CPU_IRQ);
 270        cpu_fiq[n] = qdev_get_gpio_in(DEVICE(cpu), ARM_CPU_FIQ);
 271    }
 272
 273    sysmem = get_system_memory();
 274    dram = g_new(MemoryRegion, 1);
 275    memory_region_allocate_system_memory(dram, NULL, "highbank.dram", ram_size);
 276    /* SDRAM at address zero.  */
 277    memory_region_add_subregion(sysmem, 0, dram);
 278
 279    sysram = g_new(MemoryRegion, 1);
 280    memory_region_init_ram(sysram, NULL, "highbank.sysram", 0x8000,
 281                           &error_fatal);
 282    memory_region_add_subregion(sysmem, 0xfff88000, sysram);
 283    if (bios_name != NULL) {
 284        sysboot_filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
 285        if (sysboot_filename != NULL) {
 286            if (load_image_targphys(sysboot_filename, 0xfff88000, 0x8000) < 0) {
 287                error_report("Unable to load %s", bios_name);
 288                exit(1);
 289            }
 290            g_free(sysboot_filename);
 291        } else {
 292            error_report("Unable to find %s", bios_name);
 293            exit(1);
 294        }
 295    }
 296
 297    switch (machine_id) {
 298    case CALXEDA_HIGHBANK:
 299        dev = qdev_create(NULL, "l2x0");
 300        qdev_init_nofail(dev);
 301        busdev = SYS_BUS_DEVICE(dev);
 302        sysbus_mmio_map(busdev, 0, 0xfff12000);
 303
 304        dev = qdev_create(NULL, "a9mpcore_priv");
 305        break;
 306    case CALXEDA_MIDWAY:
 307        dev = qdev_create(NULL, "a15mpcore_priv");
 308        break;
 309    }
 310    qdev_prop_set_uint32(dev, "num-cpu", smp_cpus);
 311    qdev_prop_set_uint32(dev, "num-irq", NIRQ_GIC);
 312    qdev_init_nofail(dev);
 313    busdev = SYS_BUS_DEVICE(dev);
 314    sysbus_mmio_map(busdev, 0, MPCORE_PERIPHBASE);
 315    for (n = 0; n < smp_cpus; n++) {
 316        sysbus_connect_irq(busdev, n, cpu_irq[n]);
 317        sysbus_connect_irq(busdev, n + smp_cpus, cpu_fiq[n]);
 318    }
 319
 320    for (n = 0; n < 128; n++) {
 321        pic[n] = qdev_get_gpio_in(dev, n);
 322    }
 323
 324    dev = qdev_create(NULL, "sp804");
 325    qdev_prop_set_uint32(dev, "freq0", 150000000);
 326    qdev_prop_set_uint32(dev, "freq1", 150000000);
 327    qdev_init_nofail(dev);
 328    busdev = SYS_BUS_DEVICE(dev);
 329    sysbus_mmio_map(busdev, 0, 0xfff34000);
 330    sysbus_connect_irq(busdev, 0, pic[18]);
 331    sysbus_create_simple("pl011", 0xfff36000, pic[20]);
 332
 333    dev = qdev_create(NULL, "highbank-regs");
 334    qdev_init_nofail(dev);
 335    busdev = SYS_BUS_DEVICE(dev);
 336    sysbus_mmio_map(busdev, 0, 0xfff3c000);
 337
 338    sysbus_create_simple("pl061", 0xfff30000, pic[14]);
 339    sysbus_create_simple("pl061", 0xfff31000, pic[15]);
 340    sysbus_create_simple("pl061", 0xfff32000, pic[16]);
 341    sysbus_create_simple("pl061", 0xfff33000, pic[17]);
 342    sysbus_create_simple("pl031", 0xfff35000, pic[19]);
 343    sysbus_create_simple("pl022", 0xfff39000, pic[23]);
 344
 345    sysbus_create_simple("sysbus-ahci", 0xffe08000, pic[83]);
 346
 347    if (nd_table[0].used) {
 348        qemu_check_nic_model(&nd_table[0], "xgmac");
 349        dev = qdev_create(NULL, "xgmac");
 350        qdev_set_nic_properties(dev, &nd_table[0]);
 351        qdev_init_nofail(dev);
 352        sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, 0xfff50000);
 353        sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, pic[77]);
 354        sysbus_connect_irq(SYS_BUS_DEVICE(dev), 1, pic[78]);
 355        sysbus_connect_irq(SYS_BUS_DEVICE(dev), 2, pic[79]);
 356
 357        qemu_check_nic_model(&nd_table[1], "xgmac");
 358        dev = qdev_create(NULL, "xgmac");
 359        qdev_set_nic_properties(dev, &nd_table[1]);
 360        qdev_init_nofail(dev);
 361        sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, 0xfff51000);
 362        sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, pic[80]);
 363        sysbus_connect_irq(SYS_BUS_DEVICE(dev), 1, pic[81]);
 364        sysbus_connect_irq(SYS_BUS_DEVICE(dev), 2, pic[82]);
 365    }
 366
 367    highbank_binfo.ram_size = ram_size;
 368    highbank_binfo.kernel_filename = kernel_filename;
 369    highbank_binfo.kernel_cmdline = kernel_cmdline;
 370    highbank_binfo.initrd_filename = initrd_filename;
 371    /* highbank requires a dtb in order to boot, and the dtb will override
 372     * the board ID. The following value is ignored, so set it to -1 to be
 373     * clear that the value is meaningless.
 374     */
 375    highbank_binfo.board_id = -1;
 376    highbank_binfo.nb_cpus = smp_cpus;
 377    highbank_binfo.loader_start = 0;
 378    highbank_binfo.write_secondary_boot = hb_write_secondary;
 379    highbank_binfo.secondary_cpu_reset_hook = hb_reset_secondary;
 380    if (!kvm_enabled()) {
 381        highbank_binfo.board_setup_addr = BOARD_SETUP_ADDR;
 382        highbank_binfo.write_board_setup = hb_write_board_setup;
 383        highbank_binfo.secure_board_setup = true;
 384    } else {
 385        error_report("WARNING: cannot load built-in Monitor support "
 386                     "if KVM is enabled. Some guests (such as Linux) "
 387                     "may not boot.");
 388    }
 389
 390    arm_load_kernel(ARM_CPU(first_cpu), &highbank_binfo);
 391}
 392
 393static void highbank_init(MachineState *machine)
 394{
 395    calxeda_init(machine, CALXEDA_HIGHBANK);
 396}
 397
 398static void midway_init(MachineState *machine)
 399{
 400    calxeda_init(machine, CALXEDA_MIDWAY);
 401}
 402
 403static void highbank_class_init(ObjectClass *oc, void *data)
 404{
 405    MachineClass *mc = MACHINE_CLASS(oc);
 406
 407    mc->desc = "Calxeda Highbank (ECX-1000)";
 408    mc->init = highbank_init;
 409    mc->block_default_type = IF_SCSI;
 410    mc->max_cpus = 4;
 411}
 412
 413static const TypeInfo highbank_type = {
 414    .name = MACHINE_TYPE_NAME("highbank"),
 415    .parent = TYPE_MACHINE,
 416    .class_init = highbank_class_init,
 417};
 418
 419static void midway_class_init(ObjectClass *oc, void *data)
 420{
 421    MachineClass *mc = MACHINE_CLASS(oc);
 422
 423    mc->desc = "Calxeda Midway (ECX-2000)";
 424    mc->init = midway_init;
 425    mc->block_default_type = IF_SCSI;
 426    mc->max_cpus = 4;
 427}
 428
 429static const TypeInfo midway_type = {
 430    .name = MACHINE_TYPE_NAME("midway"),
 431    .parent = TYPE_MACHINE,
 432    .class_init = midway_class_init,
 433};
 434
 435static void calxeda_machines_init(void)
 436{
 437    type_register_static(&highbank_type);
 438    type_register_static(&midway_type);
 439}
 440
 441type_init(calxeda_machines_init)
 442