hw/arm/versatilepb.c

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