hw/arm/highbank.c

   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 "exec/address-spaces.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
  38 #define SMP_BOOT_ADDR           0x100
  39 #define SMP_BOOT_REG            0x40
  40 #define MPCORE_PERIPHBASE       0xfff10000
  41
  42 #define MVBAR_ADDR              0x200
  43 #define BOARD_SETUP_ADDR        (MVBAR_ADDR + 8 * sizeof(uint32_t))
  44
  45 #define NIRQ_GIC                160
  46
  47 /* Board init.  */
  48
  49 static void hb_write_board_setup(ARMCPU *cpu,
  50                                  const struct arm_boot_info *info)
  51 {
  52     arm_write_secure_board_setup_dummy_smc(cpu, info, MVBAR_ADDR);
  53 }
  54
  55 static void hb_write_secondary(ARMCPU *cpu, const struct arm_boot_info *info)
  56 {
  57     int n;
  58     uint32_t smpboot[] = {
  59         0xee100fb0, /* mrc p15, 0, r0, c0, c0, 5 - read current core id */
  60         0xe210000f, /* ands r0, r0, #0x0f */
  61         0xe3a03040, /* mov r3, #0x40 - jump address is 0x40 + 0x10 * core id */
  62         0xe0830200, /* add r0, r3, r0, lsl #4 */
  63         0xe59f2024, /* ldr r2, privbase */
  64         0xe3a01001, /* mov r1, #1 */
  65         0xe5821100, /* str r1, [r2, #256] - set GICC_CTLR.Enable */
  66         0xe3a010ff, /* mov r1, #0xff */
  67         0xe5821104, /* str r1, [r2, #260] - set GICC_PMR.Priority to 0xff */
  68         0xf57ff04f, /* dsb */
  69         0xe320f003, /* wfi */
  70         0xe5901000, /* ldr     r1, [r0] */
  71         0xe1110001, /* tst     r1, r1 */
  72         0x0afffffb, /* beq     <wfi> */
  73         0xe12fff11, /* bx      r1 */
  74         MPCORE_PERIPHBASE   /* privbase: MPCore peripheral base address.  */
  75     };
  76     for (n = 0; n < ARRAY_SIZE(smpboot); n++) {
  77         smpboot[n] = tswap32(smpboot[n]);
  78     }
  79     rom_add_blob_fixed("smpboot", smpboot, sizeof(smpboot), SMP_BOOT_ADDR);
  80 }
  81
  82 static void hb_reset_secondary(ARMCPU *cpu, const struct arm_boot_info *info)
  83 {
  84     CPUARMState *env = &cpu->env;
  85
  86     switch (info->nb_cpus) {
  87     case 4:
  88         address_space_stl_notdirty(&address_space_memory,
  89                                    SMP_BOOT_REG + 0x30, 0,
  90                                    MEMTXATTRS_UNSPECIFIED, NULL);
  91     case 3:
  92         address_space_stl_notdirty(&address_space_memory,
  93                                    SMP_BOOT_REG + 0x20, 0,
  94                                    MEMTXATTRS_UNSPECIFIED, NULL);
  95     case 2:
  96         address_space_stl_notdirty(&address_space_memory,
  97                                    SMP_BOOT_REG + 0x10, 0,
  98                                    MEMTXATTRS_UNSPECIFIED, NULL);
  99         env->regs[15] = SMP_BOOT_ADDR;
 100         break;
 101     default:
 102         break;
 103     }
 104 }
 105
 106 #define NUM_REGS      0x200
 107 static void hb_regs_write(void *opaque, hwaddr offset,
 108                           uint64_t value, unsigned size)
 109 {
 110     uint32_t *regs = opaque;
 111
 112     if (offset == 0xf00) {
 113         if (value == 1 || value == 2) {
 114             qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET);
 115         } else if (value == 3) {
 116             qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN);
 117         }
 118     }
 119
 120     if (offset / 4 >= NUM_REGS) {
 121         qemu_log_mask(LOG_GUEST_ERROR,
 122                   "highbank: bad write offset 0x%" HWADDR_PRIx "\n", offset);
 123         return;
 124     }
 125     regs[offset / 4] = value;
 126 }
 127
 128 static uint64_t hb_regs_read(void *opaque, hwaddr offset,
 129                              unsigned size)
 130 {
 131     uint32_t value;
 132     uint32_t *regs = opaque;
 133
 134     if (offset / 4 >= NUM_REGS) {
 135         qemu_log_mask(LOG_GUEST_ERROR,
 136                   "highbank: bad read offset 0x%" HWADDR_PRIx "\n", offset);
 137         return 0;
 138     }
 139     value = regs[offset / 4];
 140
 141     if ((offset == 0x100) || (offset == 0x108) || (offset == 0x10C)) {
 142         value |= 0x30000000;
 143     }
 144
 145     return value;
 146 }
 147
 148 static const MemoryRegionOps hb_mem_ops = {
 149     .read = hb_regs_read,
 150     .write = hb_regs_write,
 151     .endianness = DEVICE_NATIVE_ENDIAN,
 152 };
 153
 154 #define TYPE_HIGHBANK_REGISTERS "highbank-regs"
 155 #define HIGHBANK_REGISTERS(obj) \
 156     OBJECT_CHECK(HighbankRegsState, (obj), TYPE_HIGHBANK_REGISTERS)
 157
 158 typedef struct {
 159     /*< private >*/
 160     SysBusDevice parent_obj;
 161     /*< public >*/
 162
 163     MemoryRegion iomem;
 164     uint32_t regs[NUM_REGS];
 165 } HighbankRegsState;
 166
 167 static VMStateDescription vmstate_highbank_regs = {
 168     .name = "highbank-regs",
 169     .version_id = 0,
 170     .minimum_version_id = 0,
 171     .fields = (VMStateField[]) {
 172         VMSTATE_UINT32_ARRAY(regs, HighbankRegsState, NUM_REGS),
 173         VMSTATE_END_OF_LIST(),
 174     },
 175 };
 176
 177 static void highbank_regs_reset(DeviceState *dev)
 178 {
 179     HighbankRegsState *s = HIGHBANK_REGISTERS(dev);
 180
 181     s->regs[0x40] = 0x05F20121;
 182     s->regs[0x41] = 0x2;
 183     s->regs[0x42] = 0x05F30121;
 184     s->regs[0x43] = 0x05F40121;
 185 }
 186
 187 static void highbank_regs_init(Object *obj)
 188 {
 189     HighbankRegsState *s = HIGHBANK_REGISTERS(obj);
 190     SysBusDevice *dev = SYS_BUS_DEVICE(obj);
 191
 192     memory_region_init_io(&s->iomem, obj, &hb_mem_ops, s->regs,
 193                           "highbank_regs", 0x1000);
 194     sysbus_init_mmio(dev, &s->iomem);
 195 }
 196
 197 static void highbank_regs_class_init(ObjectClass *klass, void *data)
 198 {
 199     DeviceClass *dc = DEVICE_CLASS(klass);
 200
 201     dc->desc = "Calxeda Highbank registers";
 202     dc->vmsd = &vmstate_highbank_regs;
 203     dc->reset = highbank_regs_reset;
 204 }
 205
 206 static const TypeInfo highbank_regs_info = {
 207     .name          = TYPE_HIGHBANK_REGISTERS,
 208     .parent        = TYPE_SYS_BUS_DEVICE,
 209     .instance_size = sizeof(HighbankRegsState),
 210     .instance_init = highbank_regs_init,
 211     .class_init    = highbank_regs_class_init,
 212 };
 213
 214 static void highbank_regs_register_types(void)
 215 {
 216     type_register_static(&highbank_regs_info);
 217 }
 218
 219 type_init(highbank_regs_register_types)
 220
 221 static struct arm_boot_info highbank_binfo;
 222
 223 enum cxmachines {
 224     CALXEDA_HIGHBANK,
 225     CALXEDA_MIDWAY,
 226 };
 227
 228 /* ram_size must be set to match the upper bound of memory in the
 229  * device tree (linux/arch/arm/boot/dts/highbank.dts), which is
 230  * normally 0xff900000 or -m 4089. When running this board on a
 231  * 32-bit host, set the reg value of memory to 0xf7ff00000 in the
 232  * device tree and pass -m 2047 to QEMU.
 233  */
 234 static void calxeda_init(MachineState *machine, enum cxmachines machine_id)
 235 {
 236     ram_addr_t ram_size = machine->ram_size;
 237     const char *kernel_filename = machine->kernel_filename;
 238     const char *kernel_cmdline = machine->kernel_cmdline;
 239     const char *initrd_filename = machine->initrd_filename;
 240     DeviceState *dev = NULL;
 241     SysBusDevice *busdev;
 242     qemu_irq pic[128];
 243     int n;
 244     qemu_irq cpu_irq[4];
 245     qemu_irq cpu_fiq[4];
 246     MemoryRegion *sysram;
 247     MemoryRegion *dram;
 248     MemoryRegion *sysmem;
 249     char *sysboot_filename;
 250
 251     switch (machine_id) {
 252     case CALXEDA_HIGHBANK:
 253         machine->cpu_type = ARM_CPU_TYPE_NAME("cortex-a9");
 254         break;
 255     case CALXEDA_MIDWAY:
 256         machine->cpu_type = ARM_CPU_TYPE_NAME("cortex-a15");
 257         break;
 258     default:
 259         assert(0);
 260     }
 261
 262     for (n = 0; n < smp_cpus; n++) {
 263         Object *cpuobj;
 264         ARMCPU *cpu;
 265
 266         cpuobj = object_new(machine->cpu_type);
 267         cpu = ARM_CPU(cpuobj);
 268
 269         object_property_set_int(cpuobj, QEMU_PSCI_CONDUIT_SMC,
 270                                 "psci-conduit", &error_abort);
 271
 272         if (n) {
 273             /* Secondary CPUs start in PSCI powered-down state */
 274             object_property_set_bool(cpuobj, true,
 275                                      "start-powered-off", &error_abort);
 276         }
 277
 278         if (object_property_find(cpuobj, "reset-cbar", NULL)) {
 279             object_property_set_int(cpuobj, MPCORE_PERIPHBASE,
 280                                     "reset-cbar", &error_abort);
 281         }
 282         object_property_set_bool(cpuobj, true, "realized", &error_fatal);
 283         cpu_irq[n] = qdev_get_gpio_in(DEVICE(cpu), ARM_CPU_IRQ);
 284         cpu_fiq[n] = qdev_get_gpio_in(DEVICE(cpu), ARM_CPU_FIQ);
 285     }
 286
 287     sysmem = get_system_memory();
 288     dram = g_new(MemoryRegion, 1);
 289     memory_region_allocate_system_memory(dram, NULL, "highbank.dram", ram_size);
 290     /* SDRAM at address zero.  */
 291     memory_region_add_subregion(sysmem, 0, dram);
 292
 293     sysram = g_new(MemoryRegion, 1);
 294     memory_region_init_ram(sysram, NULL, "highbank.sysram", 0x8000,
 295                            &error_fatal);
 296     memory_region_add_subregion(sysmem, 0xfff88000, sysram);
 297     if (bios_name != NULL) {
 298         sysboot_filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
 299         if (sysboot_filename != NULL) {
 300             if (load_image_targphys(sysboot_filename, 0xfff88000, 0x8000) < 0) {
 301                 error_report("Unable to load %s", bios_name);
 302                 exit(1);
 303             }
 304             g_free(sysboot_filename);
 305         } else {
 306             error_report("Unable to find %s", bios_name);
 307             exit(1);
 308         }
 309     }
 310
 311     switch (machine_id) {
 312     case CALXEDA_HIGHBANK:
 313         dev = qdev_create(NULL, "l2x0");
 314         qdev_init_nofail(dev);
 315         busdev = SYS_BUS_DEVICE(dev);
 316         sysbus_mmio_map(busdev, 0, 0xfff12000);
 317
 318         dev = qdev_create(NULL, TYPE_A9MPCORE_PRIV);
 319         break;
 320     case CALXEDA_MIDWAY:
 321         dev = qdev_create(NULL, TYPE_A15MPCORE_PRIV);
 322         break;
 323     }
 324     qdev_prop_set_uint32(dev, "num-cpu", smp_cpus);
 325     qdev_prop_set_uint32(dev, "num-irq", NIRQ_GIC);
 326     qdev_init_nofail(dev);
 327     busdev = SYS_BUS_DEVICE(dev);
 328     sysbus_mmio_map(busdev, 0, MPCORE_PERIPHBASE);
 329     for (n = 0; n < smp_cpus; n++) {
 330         sysbus_connect_irq(busdev, n, cpu_irq[n]);
 331         sysbus_connect_irq(busdev, n + smp_cpus, cpu_fiq[n]);
 332     }
 333
 334     for (n = 0; n < 128; n++) {
 335         pic[n] = qdev_get_gpio_in(dev, n);
 336     }
 337
 338     dev = qdev_create(NULL, "sp804");
 339     qdev_prop_set_uint32(dev, "freq0", 150000000);
 340     qdev_prop_set_uint32(dev, "freq1", 150000000);
 341     qdev_init_nofail(dev);
 342     busdev = SYS_BUS_DEVICE(dev);
 343     sysbus_mmio_map(busdev, 0, 0xfff34000);
 344     sysbus_connect_irq(busdev, 0, pic[18]);
 345     pl011_create(0xfff36000, pic[20], serial_hd(0));
 346
 347     dev = qdev_create(NULL, TYPE_HIGHBANK_REGISTERS);
 348     qdev_init_nofail(dev);
 349     busdev = SYS_BUS_DEVICE(dev);
 350     sysbus_mmio_map(busdev, 0, 0xfff3c000);
 351
 352     sysbus_create_simple("pl061", 0xfff30000, pic[14]);
 353     sysbus_create_simple("pl061", 0xfff31000, pic[15]);
 354     sysbus_create_simple("pl061", 0xfff32000, pic[16]);
 355     sysbus_create_simple("pl061", 0xfff33000, pic[17]);
 356     sysbus_create_simple("pl031", 0xfff35000, pic[19]);
 357     sysbus_create_simple("pl022", 0xfff39000, pic[23]);
 358
 359     sysbus_create_simple(TYPE_SYSBUS_AHCI, 0xffe08000, pic[83]);
 360
 361     if (nd_table[0].used) {
 362         qemu_check_nic_model(&nd_table[0], "xgmac");
 363         dev = qdev_create(NULL, "xgmac");
 364         qdev_set_nic_properties(dev, &nd_table[0]);
 365         qdev_init_nofail(dev);
 366         sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, 0xfff50000);
 367         sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, pic[77]);
 368         sysbus_connect_irq(SYS_BUS_DEVICE(dev), 1, pic[78]);
 369         sysbus_connect_irq(SYS_BUS_DEVICE(dev), 2, pic[79]);
 370
 371         qemu_check_nic_model(&nd_table[1], "xgmac");
 372         dev = qdev_create(NULL, "xgmac");
 373         qdev_set_nic_properties(dev, &nd_table[1]);
 374         qdev_init_nofail(dev);
 375         sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, 0xfff51000);
 376         sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, pic[80]);
 377         sysbus_connect_irq(SYS_BUS_DEVICE(dev), 1, pic[81]);
 378         sysbus_connect_irq(SYS_BUS_DEVICE(dev), 2, pic[82]);
 379     }
 380
 381     /* TODO create and connect IDE devices for ide_drive_get() */
 382
 383     highbank_binfo.ram_size = ram_size;
 384     highbank_binfo.kernel_filename = kernel_filename;
 385     highbank_binfo.kernel_cmdline = kernel_cmdline;
 386     highbank_binfo.initrd_filename = initrd_filename;
 387     /* highbank requires a dtb in order to boot, and the dtb will override
 388      * the board ID. The following value is ignored, so set it to -1 to be
 389      * clear that the value is meaningless.
 390      */
 391     highbank_binfo.board_id = -1;
 392     highbank_binfo.nb_cpus = smp_cpus;
 393     highbank_binfo.loader_start = 0;
 394     highbank_binfo.write_secondary_boot = hb_write_secondary;
 395     highbank_binfo.secondary_cpu_reset_hook = hb_reset_secondary;
 396     if (!kvm_enabled()) {
 397         highbank_binfo.board_setup_addr = BOARD_SETUP_ADDR;
 398         highbank_binfo.write_board_setup = hb_write_board_setup;
 399         highbank_binfo.secure_board_setup = true;
 400     } else {
 401         warn_report("cannot load built-in Monitor support "
 402                     "if KVM is enabled. Some guests (such as Linux) "
 403                     "may not boot.");
 404     }
 405
 406     arm_load_kernel(ARM_CPU(first_cpu), &highbank_binfo);
 407 }
 408
 409 static void highbank_init(MachineState *machine)
 410 {
 411     calxeda_init(machine, CALXEDA_HIGHBANK);
 412 }
 413
 414 static void midway_init(MachineState *machine)
 415 {
 416     calxeda_init(machine, CALXEDA_MIDWAY);
 417 }
 418
 419 static void highbank_class_init(ObjectClass *oc, void *data)
 420 {
 421     MachineClass *mc = MACHINE_CLASS(oc);
 422
 423     mc->desc = "Calxeda Highbank (ECX-1000)";
 424     mc->init = highbank_init;
 425     mc->block_default_type = IF_IDE;
 426     mc->units_per_default_bus = 1;
 427     mc->max_cpus = 4;
 428     mc->ignore_memory_transaction_failures = true;
 429 }
 430
 431 static const TypeInfo highbank_type = {
 432     .name = MACHINE_TYPE_NAME("highbank"),
 433     .parent = TYPE_MACHINE,
 434     .class_init = highbank_class_init,
 435 };
 436
 437 static void midway_class_init(ObjectClass *oc, void *data)
 438 {
 439     MachineClass *mc = MACHINE_CLASS(oc);
 440
 441     mc->desc = "Calxeda Midway (ECX-2000)";
 442     mc->init = midway_init;
 443     mc->block_default_type = IF_IDE;
 444     mc->units_per_default_bus = 1;
 445     mc->max_cpus = 4;
 446     mc->ignore_memory_transaction_failures = true;
 447 }
 448
 449 static const TypeInfo midway_type = {
 450     .name = MACHINE_TYPE_NAME("midway"),
 451     .parent = TYPE_MACHINE,
 452     .class_init = midway_class_init,
 453 };
 454
 455 static void calxeda_machines_init(void)
 456 {
 457     type_register_static(&highbank_type);
 458     type_register_static(&midway_type);
 459 }
 460
 461 type_init(calxeda_machines_init)