qemu/hw/arm/versatilepb.c
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   1/*
   2 * ARM Versatile Platform/Application Baseboard System emulation.
   3 *
   4 * Copyright (c) 2005-2007 CodeSourcery.
   5 * Written by Paul Brook
   6 *
   7 * This code is licensed under the GPL.
   8 */
   9
  10#include "hw/sysbus.h"
  11#include "hw/arm/arm.h"
  12#include "hw/devices.h"
  13#include "net/net.h"
  14#include "sysemu/sysemu.h"
  15#include "hw/pci/pci.h"
  16#include "hw/i2c/i2c.h"
  17#include "hw/boards.h"
  18#include "sysemu/block-backend.h"
  19#include "exec/address-spaces.h"
  20#include "hw/block/flash.h"
  21#include "qemu/error-report.h"
  22
  23#define VERSATILE_FLASH_ADDR 0x34000000
  24#define VERSATILE_FLASH_SIZE (64 * 1024 * 1024)
  25#define VERSATILE_FLASH_SECT_SIZE (256 * 1024)
  26
  27/* Primary interrupt controller.  */
  28
  29#define TYPE_VERSATILE_PB_SIC "versatilepb_sic"
  30#define VERSATILE_PB_SIC(obj) \
  31    OBJECT_CHECK(vpb_sic_state, (obj), TYPE_VERSATILE_PB_SIC)
  32
  33typedef struct vpb_sic_state {
  34    SysBusDevice parent_obj;
  35
  36    MemoryRegion iomem;
  37    uint32_t level;
  38    uint32_t mask;
  39    uint32_t pic_enable;
  40    qemu_irq parent[32];
  41    int irq;
  42} vpb_sic_state;
  43
  44static const VMStateDescription vmstate_vpb_sic = {
  45    .name = "versatilepb_sic",
  46    .version_id = 1,
  47    .minimum_version_id = 1,
  48    .fields = (VMStateField[]) {
  49        VMSTATE_UINT32(level, vpb_sic_state),
  50        VMSTATE_UINT32(mask, vpb_sic_state),
  51        VMSTATE_UINT32(pic_enable, vpb_sic_state),
  52        VMSTATE_END_OF_LIST()
  53    }
  54};
  55
  56static void vpb_sic_update(vpb_sic_state *s)
  57{
  58    uint32_t flags;
  59
  60    flags = s->level & s->mask;
  61    qemu_set_irq(s->parent[s->irq], flags != 0);
  62}
  63
  64static void vpb_sic_update_pic(vpb_sic_state *s)
  65{
  66    int i;
  67    uint32_t mask;
  68
  69    for (i = 21; i <= 30; i++) {
  70        mask = 1u << i;
  71        if (!(s->pic_enable & mask))
  72            continue;
  73        qemu_set_irq(s->parent[i], (s->level & mask) != 0);
  74    }
  75}
  76
  77static void vpb_sic_set_irq(void *opaque, int irq, int level)
  78{
  79    vpb_sic_state *s = (vpb_sic_state *)opaque;
  80    if (level)
  81        s->level |= 1u << irq;
  82    else
  83        s->level &= ~(1u << irq);
  84    if (s->pic_enable & (1u << irq))
  85        qemu_set_irq(s->parent[irq], level);
  86    vpb_sic_update(s);
  87}
  88
  89static uint64_t vpb_sic_read(void *opaque, hwaddr offset,
  90                             unsigned size)
  91{
  92    vpb_sic_state *s = (vpb_sic_state *)opaque;
  93
  94    switch (offset >> 2) {
  95    case 0: /* STATUS */
  96        return s->level & s->mask;
  97    case 1: /* RAWSTAT */
  98        return s->level;
  99    case 2: /* ENABLE */
 100        return s->mask;
 101    case 4: /* SOFTINT */
 102        return s->level & 1;
 103    case 8: /* PICENABLE */
 104        return s->pic_enable;
 105    default:
 106        printf ("vpb_sic_read: Bad register offset 0x%x\n", (int)offset);
 107        return 0;
 108    }
 109}
 110
 111static void vpb_sic_write(void *opaque, hwaddr offset,
 112                          uint64_t value, unsigned size)
 113{
 114    vpb_sic_state *s = (vpb_sic_state *)opaque;
 115
 116    switch (offset >> 2) {
 117    case 2: /* ENSET */
 118        s->mask |= value;
 119        break;
 120    case 3: /* ENCLR */
 121        s->mask &= ~value;
 122        break;
 123    case 4: /* SOFTINTSET */
 124        if (value)
 125            s->mask |= 1;
 126        break;
 127    case 5: /* SOFTINTCLR */
 128        if (value)
 129            s->mask &= ~1u;
 130        break;
 131    case 8: /* PICENSET */
 132        s->pic_enable |= (value & 0x7fe00000);
 133        vpb_sic_update_pic(s);
 134        break;
 135    case 9: /* PICENCLR */
 136        s->pic_enable &= ~value;
 137        vpb_sic_update_pic(s);
 138        break;
 139    default:
 140        printf ("vpb_sic_write: Bad register offset 0x%x\n", (int)offset);
 141        return;
 142    }
 143    vpb_sic_update(s);
 144}
 145
 146static const MemoryRegionOps vpb_sic_ops = {
 147    .read = vpb_sic_read,
 148    .write = vpb_sic_write,
 149    .endianness = DEVICE_NATIVE_ENDIAN,
 150};
 151
 152static int vpb_sic_init(SysBusDevice *sbd)
 153{
 154    DeviceState *dev = DEVICE(sbd);
 155    vpb_sic_state *s = VERSATILE_PB_SIC(dev);
 156    int i;
 157
 158    qdev_init_gpio_in(dev, vpb_sic_set_irq, 32);
 159    for (i = 0; i < 32; i++) {
 160        sysbus_init_irq(sbd, &s->parent[i]);
 161    }
 162    s->irq = 31;
 163    memory_region_init_io(&s->iomem, OBJECT(s), &vpb_sic_ops, s,
 164                          "vpb-sic", 0x1000);
 165    sysbus_init_mmio(sbd, &s->iomem);
 166    return 0;
 167}
 168
 169/* Board init.  */
 170
 171/* The AB and PB boards both use the same core, just with different
 172   peripherals and expansion busses.  For now we emulate a subset of the
 173   PB peripherals and just change the board ID.  */
 174
 175static struct arm_boot_info versatile_binfo;
 176
 177static void versatile_init(MachineState *machine, int board_id)
 178{
 179    ObjectClass *cpu_oc;
 180    Object *cpuobj;
 181    ARMCPU *cpu;
 182    MemoryRegion *sysmem = get_system_memory();
 183    MemoryRegion *ram = g_new(MemoryRegion, 1);
 184    qemu_irq pic[32];
 185    qemu_irq sic[32];
 186    DeviceState *dev, *sysctl;
 187    SysBusDevice *busdev;
 188    DeviceState *pl041;
 189    PCIBus *pci_bus;
 190    NICInfo *nd;
 191    I2CBus *i2c;
 192    int n;
 193    int done_smc = 0;
 194    DriveInfo *dinfo;
 195    Error *err = NULL;
 196
 197    if (!machine->cpu_model) {
 198        machine->cpu_model = "arm926";
 199    }
 200
 201    cpu_oc = cpu_class_by_name(TYPE_ARM_CPU, machine->cpu_model);
 202    if (!cpu_oc) {
 203        fprintf(stderr, "Unable to find CPU definition\n");
 204        exit(1);
 205    }
 206
 207    cpuobj = object_new(object_class_get_name(cpu_oc));
 208
 209    /* By default ARM1176 CPUs have EL3 enabled.  This board does not
 210     * currently support EL3 so the CPU EL3 property is disabled before
 211     * realization.
 212     */
 213    if (object_property_find(cpuobj, "has_el3", NULL)) {
 214        object_property_set_bool(cpuobj, false, "has_el3", &err);
 215        if (err) {
 216            error_report_err(err);
 217            exit(1);
 218        }
 219    }
 220
 221    object_property_set_bool(cpuobj, true, "realized", &err);
 222    if (err) {
 223        error_report_err(err);
 224        exit(1);
 225    }
 226
 227    cpu = ARM_CPU(cpuobj);
 228
 229    memory_region_allocate_system_memory(ram, NULL, "versatile.ram",
 230                                         machine->ram_size);
 231    /* ??? RAM should repeat to fill physical memory space.  */
 232    /* SDRAM at address zero.  */
 233    memory_region_add_subregion(sysmem, 0, ram);
 234
 235    sysctl = qdev_create(NULL, "realview_sysctl");
 236    qdev_prop_set_uint32(sysctl, "sys_id", 0x41007004);
 237    qdev_prop_set_uint32(sysctl, "proc_id", 0x02000000);
 238    qdev_init_nofail(sysctl);
 239    sysbus_mmio_map(SYS_BUS_DEVICE(sysctl), 0, 0x10000000);
 240
 241    dev = sysbus_create_varargs("pl190", 0x10140000,
 242                                qdev_get_gpio_in(DEVICE(cpu), ARM_CPU_IRQ),
 243                                qdev_get_gpio_in(DEVICE(cpu), ARM_CPU_FIQ),
 244                                NULL);
 245    for (n = 0; n < 32; n++) {
 246        pic[n] = qdev_get_gpio_in(dev, n);
 247    }
 248    dev = sysbus_create_simple(TYPE_VERSATILE_PB_SIC, 0x10003000, NULL);
 249    for (n = 0; n < 32; n++) {
 250        sysbus_connect_irq(SYS_BUS_DEVICE(dev), n, pic[n]);
 251        sic[n] = qdev_get_gpio_in(dev, n);
 252    }
 253
 254    sysbus_create_simple("pl050_keyboard", 0x10006000, sic[3]);
 255    sysbus_create_simple("pl050_mouse", 0x10007000, sic[4]);
 256
 257    dev = qdev_create(NULL, "versatile_pci");
 258    busdev = SYS_BUS_DEVICE(dev);
 259    qdev_init_nofail(dev);
 260    sysbus_mmio_map(busdev, 0, 0x10001000); /* PCI controller regs */
 261    sysbus_mmio_map(busdev, 1, 0x41000000); /* PCI self-config */
 262    sysbus_mmio_map(busdev, 2, 0x42000000); /* PCI config */
 263    sysbus_mmio_map(busdev, 3, 0x43000000); /* PCI I/O */
 264    sysbus_mmio_map(busdev, 4, 0x44000000); /* PCI memory window 1 */
 265    sysbus_mmio_map(busdev, 5, 0x50000000); /* PCI memory window 2 */
 266    sysbus_mmio_map(busdev, 6, 0x60000000); /* PCI memory window 3 */
 267    sysbus_connect_irq(busdev, 0, sic[27]);
 268    sysbus_connect_irq(busdev, 1, sic[28]);
 269    sysbus_connect_irq(busdev, 2, sic[29]);
 270    sysbus_connect_irq(busdev, 3, sic[30]);
 271    pci_bus = (PCIBus *)qdev_get_child_bus(dev, "pci");
 272
 273    for(n = 0; n < nb_nics; n++) {
 274        nd = &nd_table[n];
 275
 276        if (!done_smc && (!nd->model || strcmp(nd->model, "smc91c111") == 0)) {
 277            smc91c111_init(nd, 0x10010000, sic[25]);
 278            done_smc = 1;
 279        } else {
 280            pci_nic_init_nofail(nd, pci_bus, "rtl8139", NULL);
 281        }
 282    }
 283    if (usb_enabled()) {
 284        pci_create_simple(pci_bus, -1, "pci-ohci");
 285    }
 286    n = drive_get_max_bus(IF_SCSI);
 287    while (n >= 0) {
 288        pci_create_simple(pci_bus, -1, "lsi53c895a");
 289        n--;
 290    }
 291
 292    sysbus_create_simple("pl011", 0x101f1000, pic[12]);
 293    sysbus_create_simple("pl011", 0x101f2000, pic[13]);
 294    sysbus_create_simple("pl011", 0x101f3000, pic[14]);
 295    sysbus_create_simple("pl011", 0x10009000, sic[6]);
 296
 297    sysbus_create_simple("pl080", 0x10130000, pic[17]);
 298    sysbus_create_simple("sp804", 0x101e2000, pic[4]);
 299    sysbus_create_simple("sp804", 0x101e3000, pic[5]);
 300
 301    sysbus_create_simple("pl061", 0x101e4000, pic[6]);
 302    sysbus_create_simple("pl061", 0x101e5000, pic[7]);
 303    sysbus_create_simple("pl061", 0x101e6000, pic[8]);
 304    sysbus_create_simple("pl061", 0x101e7000, pic[9]);
 305
 306    /* The versatile/PB actually has a modified Color LCD controller
 307       that includes hardware cursor support from the PL111.  */
 308    dev = sysbus_create_simple("pl110_versatile", 0x10120000, pic[16]);
 309    /* Wire up the mux control signals from the SYS_CLCD register */
 310    qdev_connect_gpio_out(sysctl, 0, qdev_get_gpio_in(dev, 0));
 311
 312    sysbus_create_varargs("pl181", 0x10005000, sic[22], sic[1], NULL);
 313    sysbus_create_varargs("pl181", 0x1000b000, sic[23], sic[2], NULL);
 314
 315    /* Add PL031 Real Time Clock. */
 316    sysbus_create_simple("pl031", 0x101e8000, pic[10]);
 317
 318    dev = sysbus_create_simple("versatile_i2c", 0x10002000, NULL);
 319    i2c = (I2CBus *)qdev_get_child_bus(dev, "i2c");
 320    i2c_create_slave(i2c, "ds1338", 0x68);
 321
 322    /* Add PL041 AACI Interface to the LM4549 codec */
 323    pl041 = qdev_create(NULL, "pl041");
 324    qdev_prop_set_uint32(pl041, "nc_fifo_depth", 512);
 325    qdev_init_nofail(pl041);
 326    sysbus_mmio_map(SYS_BUS_DEVICE(pl041), 0, 0x10004000);
 327    sysbus_connect_irq(SYS_BUS_DEVICE(pl041), 0, sic[24]);
 328
 329    /* Memory map for Versatile/PB:  */
 330    /* 0x10000000 System registers.  */
 331    /* 0x10001000 PCI controller config registers.  */
 332    /* 0x10002000 Serial bus interface.  */
 333    /*  0x10003000 Secondary interrupt controller.  */
 334    /* 0x10004000 AACI (audio).  */
 335    /*  0x10005000 MMCI0.  */
 336    /*  0x10006000 KMI0 (keyboard).  */
 337    /*  0x10007000 KMI1 (mouse).  */
 338    /* 0x10008000 Character LCD Interface.  */
 339    /*  0x10009000 UART3.  */
 340    /* 0x1000a000 Smart card 1.  */
 341    /*  0x1000b000 MMCI1.  */
 342    /*  0x10010000 Ethernet.  */
 343    /* 0x10020000 USB.  */
 344    /* 0x10100000 SSMC.  */
 345    /* 0x10110000 MPMC.  */
 346    /*  0x10120000 CLCD Controller.  */
 347    /*  0x10130000 DMA Controller.  */
 348    /*  0x10140000 Vectored interrupt controller.  */
 349    /* 0x101d0000 AHB Monitor Interface.  */
 350    /* 0x101e0000 System Controller.  */
 351    /* 0x101e1000 Watchdog Interface.  */
 352    /* 0x101e2000 Timer 0/1.  */
 353    /* 0x101e3000 Timer 2/3.  */
 354    /* 0x101e4000 GPIO port 0.  */
 355    /* 0x101e5000 GPIO port 1.  */
 356    /* 0x101e6000 GPIO port 2.  */
 357    /* 0x101e7000 GPIO port 3.  */
 358    /* 0x101e8000 RTC.  */
 359    /* 0x101f0000 Smart card 0.  */
 360    /*  0x101f1000 UART0.  */
 361    /*  0x101f2000 UART1.  */
 362    /*  0x101f3000 UART2.  */
 363    /* 0x101f4000 SSPI.  */
 364    /* 0x34000000 NOR Flash */
 365
 366    dinfo = drive_get(IF_PFLASH, 0, 0);
 367    if (!pflash_cfi01_register(VERSATILE_FLASH_ADDR, NULL, "versatile.flash",
 368                          VERSATILE_FLASH_SIZE,
 369                          dinfo ? blk_by_legacy_dinfo(dinfo) : NULL,
 370                          VERSATILE_FLASH_SECT_SIZE,
 371                          VERSATILE_FLASH_SIZE / VERSATILE_FLASH_SECT_SIZE,
 372                          4, 0x0089, 0x0018, 0x0000, 0x0, 0)) {
 373        fprintf(stderr, "qemu: Error registering flash memory.\n");
 374    }
 375
 376    versatile_binfo.ram_size = machine->ram_size;
 377    versatile_binfo.kernel_filename = machine->kernel_filename;
 378    versatile_binfo.kernel_cmdline = machine->kernel_cmdline;
 379    versatile_binfo.initrd_filename = machine->initrd_filename;
 380    versatile_binfo.board_id = board_id;
 381    arm_load_kernel(cpu, &versatile_binfo);
 382}
 383
 384static void vpb_init(MachineState *machine)
 385{
 386    versatile_init(machine, 0x183);
 387}
 388
 389static void vab_init(MachineState *machine)
 390{
 391    versatile_init(machine, 0x25e);
 392}
 393
 394static void versatilepb_class_init(ObjectClass *oc, void *data)
 395{
 396    MachineClass *mc = MACHINE_CLASS(oc);
 397
 398    mc->desc = "ARM Versatile/PB (ARM926EJ-S)";
 399    mc->init = vpb_init;
 400    mc->block_default_type = IF_SCSI;
 401}
 402
 403static const TypeInfo versatilepb_type = {
 404    .name = MACHINE_TYPE_NAME("versatilepb"),
 405    .parent = TYPE_MACHINE,
 406    .class_init = versatilepb_class_init,
 407};
 408
 409static void versatileab_class_init(ObjectClass *oc, void *data)
 410{
 411    MachineClass *mc = MACHINE_CLASS(oc);
 412
 413    mc->desc = "ARM Versatile/AB (ARM926EJ-S)";
 414    mc->init = vab_init;
 415    mc->block_default_type = IF_SCSI;
 416}
 417
 418static const TypeInfo versatileab_type = {
 419    .name = MACHINE_TYPE_NAME("versatileab"),
 420    .parent = TYPE_MACHINE,
 421    .class_init = versatileab_class_init,
 422};
 423
 424static void versatile_machine_init(void)
 425{
 426    type_register_static(&versatilepb_type);
 427    type_register_static(&versatileab_type);
 428}
 429
 430machine_init(versatile_machine_init)
 431
 432static void vpb_sic_class_init(ObjectClass *klass, void *data)
 433{
 434    DeviceClass *dc = DEVICE_CLASS(klass);
 435    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 436
 437    k->init = vpb_sic_init;
 438    dc->vmsd = &vmstate_vpb_sic;
 439}
 440
 441static const TypeInfo vpb_sic_info = {
 442    .name          = TYPE_VERSATILE_PB_SIC,
 443    .parent        = TYPE_SYS_BUS_DEVICE,
 444    .instance_size = sizeof(vpb_sic_state),
 445    .class_init    = vpb_sic_class_init,
 446};
 447
 448static void versatilepb_register_types(void)
 449{
 450    type_register_static(&vpb_sic_info);
 451}
 452
 453type_init(versatilepb_register_types)
 454