hw/arm/realview.c

   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 "qemu-common.h"
  13 #include "cpu.h"
  14 #include "hw/sysbus.h"
  15 #include "hw/arm/arm.h"
  16 #include "hw/arm/primecell.h"
  17 #include "hw/devices.h"
  18 #include "hw/pci/pci.h"
  19 #include "net/net.h"
  20 #include "sysemu/sysemu.h"
  21 #include "hw/boards.h"
  22 #include "hw/i2c/i2c.h"
  23 #include "sysemu/block-backend.h"
  24 #include "exec/address-spaces.h"
  25 #include "qemu/error-report.h"
  26 #include "hw/char/pl011.h"
  27
  28 #define SMP_BOOT_ADDR 0xe0000000
  29 #define SMP_BOOTREG_ADDR 0x10000030
  30
  31 /* Board init.  */
  32
  33 static struct arm_boot_info realview_binfo = {
  34     .smp_loader_start = SMP_BOOT_ADDR,
  35     .smp_bootreg_addr = SMP_BOOTREG_ADDR,
  36 };
  37
  38 /* The following two lists must be consistent.  */
  39 enum realview_board_type {
  40     BOARD_EB,
  41     BOARD_EB_MPCORE,
  42     BOARD_PB_A8,
  43     BOARD_PBX_A9,
  44 };
  45
  46 static const int realview_board_id[] = {
  47     0x33b,
  48     0x33b,
  49     0x769,
  50     0x76d
  51 };
  52
  53 static void realview_init(MachineState *machine,
  54                           enum realview_board_type board_type)
  55 {
  56     ARMCPU *cpu = NULL;
  57     CPUARMState *env;
  58     ObjectClass *cpu_oc;
  59     MemoryRegion *sysmem = get_system_memory();
  60     MemoryRegion *ram_lo;
  61     MemoryRegion *ram_hi = g_new(MemoryRegion, 1);
  62     MemoryRegion *ram_alias = g_new(MemoryRegion, 1);
  63     MemoryRegion *ram_hack = g_new(MemoryRegion, 1);
  64     DeviceState *dev, *sysctl, *gpio2, *pl041;
  65     SysBusDevice *busdev;
  66     qemu_irq pic[64];
  67     qemu_irq mmc_irq[2];
  68     PCIBus *pci_bus = NULL;
  69     NICInfo *nd;
  70     I2CBus *i2c;
  71     int n;
  72     int done_nic = 0;
  73     qemu_irq cpu_irq[4];
  74     int is_mpcore = 0;
  75     int is_pb = 0;
  76     uint32_t proc_id = 0;
  77     uint32_t sys_id;
  78     ram_addr_t low_ram_size;
  79     ram_addr_t ram_size = machine->ram_size;
  80     hwaddr periphbase = 0;
  81
  82     switch (board_type) {
  83     case BOARD_EB:
  84         break;
  85     case BOARD_EB_MPCORE:
  86         is_mpcore = 1;
  87         periphbase = 0x10100000;
  88         break;
  89     case BOARD_PB_A8:
  90         is_pb = 1;
  91         break;
  92     case BOARD_PBX_A9:
  93         is_mpcore = 1;
  94         is_pb = 1;
  95         periphbase = 0x1f000000;
  96         break;
  97     }
  98
  99     cpu_oc = cpu_class_by_name(TYPE_ARM_CPU, machine->cpu_model);
 100     if (!cpu_oc) {
 101         fprintf(stderr, "Unable to find CPU definition\n");
 102         exit(1);
 103     }
 104
 105     for (n = 0; n < smp_cpus; n++) {
 106         Object *cpuobj = object_new(object_class_get_name(cpu_oc));
 107
 108         /* By default A9,A15 and ARM1176 CPUs have EL3 enabled.  This board
 109          * does not currently support EL3 so the CPU EL3 property is disabled
 110          * before realization.
 111          */
 112         if (object_property_find(cpuobj, "has_el3", NULL)) {
 113             object_property_set_bool(cpuobj, false, "has_el3", &error_fatal);
 114         }
 115
 116         if (is_pb && is_mpcore) {
 117             object_property_set_int(cpuobj, periphbase, "reset-cbar",
 118                                     &error_fatal);
 119         }
 120
 121         object_property_set_bool(cpuobj, true, "realized", &error_fatal);
 122
 123         cpu_irq[n] = qdev_get_gpio_in(DEVICE(cpuobj), ARM_CPU_IRQ);
 124     }
 125     cpu = ARM_CPU(first_cpu);
 126     env = &cpu->env;
 127     if (arm_feature(env, ARM_FEATURE_V7)) {
 128         if (is_mpcore) {
 129             proc_id = 0x0c000000;
 130         } else {
 131             proc_id = 0x0e000000;
 132         }
 133     } else if (arm_feature(env, ARM_FEATURE_V6K)) {
 134         proc_id = 0x06000000;
 135     } else if (arm_feature(env, ARM_FEATURE_V6)) {
 136         proc_id = 0x04000000;
 137     } else {
 138         proc_id = 0x02000000;
 139     }
 140
 141     if (is_pb && ram_size > 0x20000000) {
 142         /* Core tile RAM.  */
 143         ram_lo = g_new(MemoryRegion, 1);
 144         low_ram_size = ram_size - 0x20000000;
 145         ram_size = 0x20000000;
 146         memory_region_init_ram(ram_lo, NULL, "realview.lowmem", low_ram_size,
 147                                &error_fatal);
 148         vmstate_register_ram_global(ram_lo);
 149         memory_region_add_subregion(sysmem, 0x20000000, ram_lo);
 150     }
 151
 152     memory_region_init_ram(ram_hi, NULL, "realview.highmem", ram_size,
 153                            &error_fatal);
 154     vmstate_register_ram_global(ram_hi);
 155     low_ram_size = ram_size;
 156     if (low_ram_size > 0x10000000)
 157       low_ram_size = 0x10000000;
 158     /* SDRAM at address zero.  */
 159     memory_region_init_alias(ram_alias, NULL, "realview.alias",
 160                              ram_hi, 0, low_ram_size);
 161     memory_region_add_subregion(sysmem, 0, ram_alias);
 162     if (is_pb) {
 163         /* And again at a high address.  */
 164         memory_region_add_subregion(sysmem, 0x70000000, ram_hi);
 165     } else {
 166         ram_size = low_ram_size;
 167     }
 168
 169     sys_id = is_pb ? 0x01780500 : 0xc1400400;
 170     sysctl = qdev_create(NULL, "realview_sysctl");
 171     qdev_prop_set_uint32(sysctl, "sys_id", sys_id);
 172     qdev_prop_set_uint32(sysctl, "proc_id", proc_id);
 173     qdev_init_nofail(sysctl);
 174     sysbus_mmio_map(SYS_BUS_DEVICE(sysctl), 0, 0x10000000);
 175
 176     if (is_mpcore) {
 177         dev = qdev_create(NULL, is_pb ? "a9mpcore_priv": "realview_mpcore");
 178         qdev_prop_set_uint32(dev, "num-cpu", smp_cpus);
 179         qdev_init_nofail(dev);
 180         busdev = SYS_BUS_DEVICE(dev);
 181         sysbus_mmio_map(busdev, 0, periphbase);
 182         for (n = 0; n < smp_cpus; n++) {
 183             sysbus_connect_irq(busdev, n, cpu_irq[n]);
 184         }
 185         sysbus_create_varargs("l2x0", periphbase + 0x2000, NULL);
 186         /* Both A9 and 11MPCore put the GIC CPU i/f at base + 0x100 */
 187         realview_binfo.gic_cpu_if_addr = periphbase + 0x100;
 188     } else {
 189         uint32_t gic_addr = is_pb ? 0x1e000000 : 0x10040000;
 190         /* For now just create the nIRQ GIC, and ignore the others.  */
 191         dev = sysbus_create_simple("realview_gic", gic_addr, cpu_irq[0]);
 192     }
 193     for (n = 0; n < 64; n++) {
 194         pic[n] = qdev_get_gpio_in(dev, n);
 195     }
 196
 197     pl041 = qdev_create(NULL, "pl041");
 198     qdev_prop_set_uint32(pl041, "nc_fifo_depth", 512);
 199     qdev_init_nofail(pl041);
 200     sysbus_mmio_map(SYS_BUS_DEVICE(pl041), 0, 0x10004000);
 201     sysbus_connect_irq(SYS_BUS_DEVICE(pl041), 0, pic[19]);
 202
 203     sysbus_create_simple("pl050_keyboard", 0x10006000, pic[20]);
 204     sysbus_create_simple("pl050_mouse", 0x10007000, pic[21]);
 205
 206     pl011_create(0x10009000, pic[12], serial_hds[0]);
 207     pl011_create(0x1000a000, pic[13], serial_hds[1]);
 208     pl011_create(0x1000b000, pic[14], serial_hds[2]);
 209     pl011_create(0x1000c000, pic[15], serial_hds[3]);
 210
 211     /* DMA controller is optional, apparently.  */
 212     sysbus_create_simple("pl081", 0x10030000, pic[24]);
 213
 214     sysbus_create_simple("sp804", 0x10011000, pic[4]);
 215     sysbus_create_simple("sp804", 0x10012000, pic[5]);
 216
 217     sysbus_create_simple("pl061", 0x10013000, pic[6]);
 218     sysbus_create_simple("pl061", 0x10014000, pic[7]);
 219     gpio2 = sysbus_create_simple("pl061", 0x10015000, pic[8]);
 220
 221     sysbus_create_simple("pl111", 0x10020000, pic[23]);
 222
 223     dev = sysbus_create_varargs("pl181", 0x10005000, pic[17], pic[18], NULL);
 224     /* Wire up MMC card detect and read-only signals. These have
 225      * to go to both the PL061 GPIO and the sysctl register.
 226      * Note that the PL181 orders these lines (readonly,inserted)
 227      * and the PL061 has them the other way about. Also the card
 228      * detect line is inverted.
 229      */
 230     mmc_irq[0] = qemu_irq_split(
 231         qdev_get_gpio_in(sysctl, ARM_SYSCTL_GPIO_MMC_WPROT),
 232         qdev_get_gpio_in(gpio2, 1));
 233     mmc_irq[1] = qemu_irq_split(
 234         qdev_get_gpio_in(sysctl, ARM_SYSCTL_GPIO_MMC_CARDIN),
 235         qemu_irq_invert(qdev_get_gpio_in(gpio2, 0)));
 236     qdev_connect_gpio_out(dev, 0, mmc_irq[0]);
 237     qdev_connect_gpio_out(dev, 1, mmc_irq[1]);
 238
 239     sysbus_create_simple("pl031", 0x10017000, pic[10]);
 240
 241     if (!is_pb) {
 242         dev = qdev_create(NULL, "realview_pci");
 243         busdev = SYS_BUS_DEVICE(dev);
 244         qdev_init_nofail(dev);
 245         sysbus_mmio_map(busdev, 0, 0x10019000); /* PCI controller registers */
 246         sysbus_mmio_map(busdev, 1, 0x60000000); /* PCI self-config */
 247         sysbus_mmio_map(busdev, 2, 0x61000000); /* PCI config */
 248         sysbus_mmio_map(busdev, 3, 0x62000000); /* PCI I/O */
 249         sysbus_mmio_map(busdev, 4, 0x63000000); /* PCI memory window 1 */
 250         sysbus_mmio_map(busdev, 5, 0x64000000); /* PCI memory window 2 */
 251         sysbus_mmio_map(busdev, 6, 0x68000000); /* PCI memory window 3 */
 252         sysbus_connect_irq(busdev, 0, pic[48]);
 253         sysbus_connect_irq(busdev, 1, pic[49]);
 254         sysbus_connect_irq(busdev, 2, pic[50]);
 255         sysbus_connect_irq(busdev, 3, pic[51]);
 256         pci_bus = (PCIBus *)qdev_get_child_bus(dev, "pci");
 257         if (machine_usb(machine)) {
 258             pci_create_simple(pci_bus, -1, "pci-ohci");
 259         }
 260         n = drive_get_max_bus(IF_SCSI);
 261         while (n >= 0) {
 262             pci_create_simple(pci_bus, -1, "lsi53c895a");
 263             n--;
 264         }
 265     }
 266     for(n = 0; n < nb_nics; n++) {
 267         nd = &nd_table[n];
 268
 269         if (!done_nic && (!nd->model ||
 270                     strcmp(nd->model, is_pb ? "lan9118" : "smc91c111") == 0)) {
 271             if (is_pb) {
 272                 lan9118_init(nd, 0x4e000000, pic[28]);
 273             } else {
 274                 smc91c111_init(nd, 0x4e000000, pic[28]);
 275             }
 276             done_nic = 1;
 277         } else {
 278             if (pci_bus) {
 279                 pci_nic_init_nofail(nd, pci_bus, "rtl8139", NULL);
 280             }
 281         }
 282     }
 283
 284     dev = sysbus_create_simple("versatile_i2c", 0x10002000, NULL);
 285     i2c = (I2CBus *)qdev_get_child_bus(dev, "i2c");
 286     i2c_create_slave(i2c, "ds1338", 0x68);
 287
 288     /* Memory map for RealView Emulation Baseboard:  */
 289     /* 0x10000000 System registers.  */
 290     /*  0x10001000 System controller.  */
 291     /* 0x10002000 Two-Wire Serial Bus.  */
 292     /* 0x10003000 Reserved.  */
 293     /*  0x10004000 AACI.  */
 294     /*  0x10005000 MCI.  */
 295     /* 0x10006000 KMI0.  */
 296     /* 0x10007000 KMI1.  */
 297     /*  0x10008000 Character LCD. (EB) */
 298     /* 0x10009000 UART0.  */
 299     /* 0x1000a000 UART1.  */
 300     /* 0x1000b000 UART2.  */
 301     /* 0x1000c000 UART3.  */
 302     /*  0x1000d000 SSPI.  */
 303     /*  0x1000e000 SCI.  */
 304     /* 0x1000f000 Reserved.  */
 305     /*  0x10010000 Watchdog.  */
 306     /* 0x10011000 Timer 0+1.  */
 307     /* 0x10012000 Timer 2+3.  */
 308     /*  0x10013000 GPIO 0.  */
 309     /*  0x10014000 GPIO 1.  */
 310     /*  0x10015000 GPIO 2.  */
 311     /*  0x10002000 Two-Wire Serial Bus - DVI. (PB) */
 312     /* 0x10017000 RTC.  */
 313     /*  0x10018000 DMC.  */
 314     /*  0x10019000 PCI controller config.  */
 315     /*  0x10020000 CLCD.  */
 316     /* 0x10030000 DMA Controller.  */
 317     /* 0x10040000 GIC1. (EB) */
 318     /*  0x10050000 GIC2. (EB) */
 319     /*  0x10060000 GIC3. (EB) */
 320     /*  0x10070000 GIC4. (EB) */
 321     /*  0x10080000 SMC.  */
 322     /* 0x1e000000 GIC1. (PB) */
 323     /*  0x1e001000 GIC2. (PB) */
 324     /*  0x1e002000 GIC3. (PB) */
 325     /*  0x1e003000 GIC4. (PB) */
 326     /*  0x40000000 NOR flash.  */
 327     /*  0x44000000 DoC flash.  */
 328     /*  0x48000000 SRAM.  */
 329     /*  0x4c000000 Configuration flash.  */
 330     /* 0x4e000000 Ethernet.  */
 331     /*  0x4f000000 USB.  */
 332     /*  0x50000000 PISMO.  */
 333     /*  0x54000000 PISMO.  */
 334     /*  0x58000000 PISMO.  */
 335     /*  0x5c000000 PISMO.  */
 336     /* 0x60000000 PCI.  */
 337     /* 0x60000000 PCI Self Config.  */
 338     /* 0x61000000 PCI Config.  */
 339     /* 0x62000000 PCI IO.  */
 340     /* 0x63000000 PCI mem 0.  */
 341     /* 0x64000000 PCI mem 1.  */
 342     /* 0x68000000 PCI mem 2.  */
 343
 344     /* ??? Hack to map an additional page of ram for the secondary CPU
 345        startup code.  I guess this works on real hardware because the
 346        BootROM happens to be in ROM/flash or in memory that isn't clobbered
 347        until after Linux boots the secondary CPUs.  */
 348     memory_region_init_ram(ram_hack, NULL, "realview.hack", 0x1000,
 349                            &error_fatal);
 350     vmstate_register_ram_global(ram_hack);
 351     memory_region_add_subregion(sysmem, SMP_BOOT_ADDR, ram_hack);
 352
 353     realview_binfo.ram_size = ram_size;
 354     realview_binfo.kernel_filename = machine->kernel_filename;
 355     realview_binfo.kernel_cmdline = machine->kernel_cmdline;
 356     realview_binfo.initrd_filename = machine->initrd_filename;
 357     realview_binfo.nb_cpus = smp_cpus;
 358     realview_binfo.board_id = realview_board_id[board_type];
 359     realview_binfo.loader_start = (board_type == BOARD_PB_A8 ? 0x70000000 : 0);
 360     arm_load_kernel(ARM_CPU(first_cpu), &realview_binfo);
 361 }
 362
 363 static void realview_eb_init(MachineState *machine)
 364 {
 365     if (!machine->cpu_model) {
 366         machine->cpu_model = "arm926";
 367     }
 368     realview_init(machine, BOARD_EB);
 369 }
 370
 371 static void realview_eb_mpcore_init(MachineState *machine)
 372 {
 373     if (!machine->cpu_model) {
 374         machine->cpu_model = "arm11mpcore";
 375     }
 376     realview_init(machine, BOARD_EB_MPCORE);
 377 }
 378
 379 static void realview_pb_a8_init(MachineState *machine)
 380 {
 381     if (!machine->cpu_model) {
 382         machine->cpu_model = "cortex-a8";
 383     }
 384     realview_init(machine, BOARD_PB_A8);
 385 }
 386
 387 static void realview_pbx_a9_init(MachineState *machine)
 388 {
 389     if (!machine->cpu_model) {
 390         machine->cpu_model = "cortex-a9";
 391     }
 392     realview_init(machine, BOARD_PBX_A9);
 393 }
 394
 395 static void realview_eb_class_init(ObjectClass *oc, void *data)
 396 {
 397     MachineClass *mc = MACHINE_CLASS(oc);
 398
 399     mc->desc = "ARM RealView Emulation Baseboard (ARM926EJ-S)";
 400     mc->init = realview_eb_init;
 401     mc->block_default_type = IF_SCSI;
 402 }
 403
 404 static const TypeInfo realview_eb_type = {
 405     .name = MACHINE_TYPE_NAME("realview-eb"),
 406     .parent = TYPE_MACHINE,
 407     .class_init = realview_eb_class_init,
 408 };
 409
 410 static void realview_eb_mpcore_class_init(ObjectClass *oc, void *data)
 411 {
 412     MachineClass *mc = MACHINE_CLASS(oc);
 413
 414     mc->desc = "ARM RealView Emulation Baseboard (ARM11MPCore)";
 415     mc->init = realview_eb_mpcore_init;
 416     mc->block_default_type = IF_SCSI;
 417     mc->max_cpus = 4;
 418 }
 419
 420 static const TypeInfo realview_eb_mpcore_type = {
 421     .name = MACHINE_TYPE_NAME("realview-eb-mpcore"),
 422     .parent = TYPE_MACHINE,
 423     .class_init = realview_eb_mpcore_class_init,
 424 };
 425
 426 static void realview_pb_a8_class_init(ObjectClass *oc, void *data)
 427 {
 428     MachineClass *mc = MACHINE_CLASS(oc);
 429
 430     mc->desc = "ARM RealView Platform Baseboard for Cortex-A8";
 431     mc->init = realview_pb_a8_init;
 432 }
 433
 434 static const TypeInfo realview_pb_a8_type = {
 435     .name = MACHINE_TYPE_NAME("realview-pb-a8"),
 436     .parent = TYPE_MACHINE,
 437     .class_init = realview_pb_a8_class_init,
 438 };
 439
 440 static void realview_pbx_a9_class_init(ObjectClass *oc, void *data)
 441 {
 442     MachineClass *mc = MACHINE_CLASS(oc);
 443
 444     mc->desc = "ARM RealView Platform Baseboard Explore for Cortex-A9";
 445     mc->init = realview_pbx_a9_init;
 446     mc->block_default_type = IF_SCSI;
 447     mc->max_cpus = 4;
 448 }
 449
 450 static const TypeInfo realview_pbx_a9_type = {
 451     .name = MACHINE_TYPE_NAME("realview-pbx-a9"),
 452     .parent = TYPE_MACHINE,
 453     .class_init = realview_pbx_a9_class_init,
 454 };
 455
 456 static void realview_machine_init(void)
 457 {
 458     type_register_static(&realview_eb_type);
 459     type_register_static(&realview_eb_mpcore_type);
 460     type_register_static(&realview_pb_a8_type);
 461     type_register_static(&realview_pbx_a9_type);
 462 }
 463
 464 type_init(realview_machine_init)