hw/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 "sysbus.h"
  11 #include "arm-misc.h"
  12 #include "devices.h"
  13 #include "net.h"
  14 #include "sysemu.h"
  15 #include "pci.h"
  16 #include "i2c.h"
  17 #include "boards.h"
  18 #include "blockdev.h"
  19 #include "exec-memory.h"
  20 #include "flash.h"
  21
  22 #define VERSATILE_FLASH_ADDR 0x34000000
  23 #define VERSATILE_FLASH_SIZE (64 * 1024 * 1024)
  24 #define VERSATILE_FLASH_SECT_SIZE (256 * 1024)
  25
  26 /* Primary interrupt controller.  */
  27
  28 typedef struct vpb_sic_state
  29 {
  30   SysBusDevice busdev;
  31   MemoryRegion iomem;
  32   uint32_t level;
  33   uint32_t mask;
  34   uint32_t pic_enable;
  35   qemu_irq parent[32];
  36   int irq;
  37 } vpb_sic_state;
  38
  39 static const VMStateDescription vmstate_vpb_sic = {
  40     .name = "versatilepb_sic",
  41     .version_id = 1,
  42     .minimum_version_id = 1,
  43     .fields = (VMStateField[]) {
  44         VMSTATE_UINT32(level, vpb_sic_state),
  45         VMSTATE_UINT32(mask, vpb_sic_state),
  46         VMSTATE_UINT32(pic_enable, vpb_sic_state),
  47         VMSTATE_END_OF_LIST()
  48     }
  49 };
  50
  51 static void vpb_sic_update(vpb_sic_state *s)
  52 {
  53     uint32_t flags;
  54
  55     flags = s->level & s->mask;
  56     qemu_set_irq(s->parent[s->irq], flags != 0);
  57 }
  58
  59 static void vpb_sic_update_pic(vpb_sic_state *s)
  60 {
  61     int i;
  62     uint32_t mask;
  63
  64     for (i = 21; i <= 30; i++) {
  65         mask = 1u << i;
  66         if (!(s->pic_enable & mask))
  67             continue;
  68         qemu_set_irq(s->parent[i], (s->level & mask) != 0);
  69     }
  70 }
  71
  72 static void vpb_sic_set_irq(void *opaque, int irq, int level)
  73 {
  74     vpb_sic_state *s = (vpb_sic_state *)opaque;
  75     if (level)
  76         s->level |= 1u << irq;
  77     else
  78         s->level &= ~(1u << irq);
  79     if (s->pic_enable & (1u << irq))
  80         qemu_set_irq(s->parent[irq], level);
  81     vpb_sic_update(s);
  82 }
  83
  84 static uint64_t vpb_sic_read(void *opaque, target_phys_addr_t offset,
  85                              unsigned size)
  86 {
  87     vpb_sic_state *s = (vpb_sic_state *)opaque;
  88
  89     switch (offset >> 2) {
  90     case 0: /* STATUS */
  91         return s->level & s->mask;
  92     case 1: /* RAWSTAT */
  93         return s->level;
  94     case 2: /* ENABLE */
  95         return s->mask;
  96     case 4: /* SOFTINT */
  97         return s->level & 1;
  98     case 8: /* PICENABLE */
  99         return s->pic_enable;
 100     default:
 101         printf ("vpb_sic_read: Bad register offset 0x%x\n", (int)offset);
 102         return 0;
 103     }
 104 }
 105
 106 static void vpb_sic_write(void *opaque, target_phys_addr_t offset,
 107                           uint64_t value, unsigned size)
 108 {
 109     vpb_sic_state *s = (vpb_sic_state *)opaque;
 110
 111     switch (offset >> 2) {
 112     case 2: /* ENSET */
 113         s->mask |= value;
 114         break;
 115     case 3: /* ENCLR */
 116         s->mask &= ~value;
 117         break;
 118     case 4: /* SOFTINTSET */
 119         if (value)
 120             s->mask |= 1;
 121         break;
 122     case 5: /* SOFTINTCLR */
 123         if (value)
 124             s->mask &= ~1u;
 125         break;
 126     case 8: /* PICENSET */
 127         s->pic_enable |= (value & 0x7fe00000);
 128         vpb_sic_update_pic(s);
 129         break;
 130     case 9: /* PICENCLR */
 131         s->pic_enable &= ~value;
 132         vpb_sic_update_pic(s);
 133         break;
 134     default:
 135         printf ("vpb_sic_write: Bad register offset 0x%x\n", (int)offset);
 136         return;
 137     }
 138     vpb_sic_update(s);
 139 }
 140
 141 static const MemoryRegionOps vpb_sic_ops = {
 142     .read = vpb_sic_read,
 143     .write = vpb_sic_write,
 144     .endianness = DEVICE_NATIVE_ENDIAN,
 145 };
 146
 147 static int vpb_sic_init(SysBusDevice *dev)
 148 {
 149     vpb_sic_state *s = FROM_SYSBUS(vpb_sic_state, dev);
 150     int i;
 151
 152     qdev_init_gpio_in(&dev->qdev, vpb_sic_set_irq, 32);
 153     for (i = 0; i < 32; i++) {
 154         sysbus_init_irq(dev, &s->parent[i]);
 155     }
 156     s->irq = 31;
 157     memory_region_init_io(&s->iomem, &vpb_sic_ops, s, "vpb-sic", 0x1000);
 158     sysbus_init_mmio(dev, &s->iomem);
 159     return 0;
 160 }
 161
 162 /* Board init.  */
 163
 164 /* The AB and PB boards both use the same core, just with different
 165    peripherals and expansion busses.  For now we emulate a subset of the
 166    PB peripherals and just change the board ID.  */
 167
 168 static struct arm_boot_info versatile_binfo;
 169
 170 static void versatile_init(ram_addr_t ram_size,
 171                      const char *boot_device,
 172                      const char *kernel_filename, const char *kernel_cmdline,
 173                      const char *initrd_filename, const char *cpu_model,
 174                      int board_id)
 175 {
 176     ARMCPU *cpu;
 177     MemoryRegion *sysmem = get_system_memory();
 178     MemoryRegion *ram = g_new(MemoryRegion, 1);
 179     qemu_irq *cpu_pic;
 180     qemu_irq pic[32];
 181     qemu_irq sic[32];
 182     DeviceState *dev, *sysctl;
 183     SysBusDevice *busdev;
 184     DeviceState *pl041;
 185     PCIBus *pci_bus;
 186     NICInfo *nd;
 187     i2c_bus *i2c;
 188     int n;
 189     int done_smc = 0;
 190     DriveInfo *dinfo;
 191
 192     if (!cpu_model) {
 193         cpu_model = "arm926";
 194     }
 195     cpu = cpu_arm_init(cpu_model);
 196     if (!cpu) {
 197         fprintf(stderr, "Unable to find CPU definition\n");
 198         exit(1);
 199     }
 200     memory_region_init_ram(ram, "versatile.ram", ram_size);
 201     vmstate_register_ram_global(ram);
 202     /* ??? RAM should repeat to fill physical memory space.  */
 203     /* SDRAM at address zero.  */
 204     memory_region_add_subregion(sysmem, 0, ram);
 205
 206     sysctl = qdev_create(NULL, "realview_sysctl");
 207     qdev_prop_set_uint32(sysctl, "sys_id", 0x41007004);
 208     qdev_prop_set_uint32(sysctl, "proc_id", 0x02000000);
 209     qdev_init_nofail(sysctl);
 210     sysbus_mmio_map(sysbus_from_qdev(sysctl), 0, 0x10000000);
 211
 212     cpu_pic = arm_pic_init_cpu(cpu);
 213     dev = sysbus_create_varargs("pl190", 0x10140000,
 214                                 cpu_pic[0], cpu_pic[1], NULL);
 215     for (n = 0; n < 32; n++) {
 216         pic[n] = qdev_get_gpio_in(dev, n);
 217     }
 218     dev = sysbus_create_simple("versatilepb_sic", 0x10003000, NULL);
 219     for (n = 0; n < 32; n++) {
 220         sysbus_connect_irq(sysbus_from_qdev(dev), n, pic[n]);
 221         sic[n] = qdev_get_gpio_in(dev, n);
 222     }
 223
 224     sysbus_create_simple("pl050_keyboard", 0x10006000, sic[3]);
 225     sysbus_create_simple("pl050_mouse", 0x10007000, sic[4]);
 226
 227     dev = qdev_create(NULL, "versatile_pci");
 228     busdev = sysbus_from_qdev(dev);
 229     qdev_init_nofail(dev);
 230     sysbus_mmio_map(busdev, 0, 0x41000000); /* PCI self-config */
 231     sysbus_mmio_map(busdev, 1, 0x42000000); /* PCI config */
 232     sysbus_connect_irq(busdev, 0, sic[27]);
 233     sysbus_connect_irq(busdev, 1, sic[28]);
 234     sysbus_connect_irq(busdev, 2, sic[29]);
 235     sysbus_connect_irq(busdev, 3, sic[30]);
 236     pci_bus = (PCIBus *)qdev_get_child_bus(dev, "pci");
 237
 238     /* The Versatile PCI bridge does not provide access to PCI IO space,
 239        so many of the qemu PCI devices are not useable.  */
 240     for(n = 0; n < nb_nics; n++) {
 241         nd = &nd_table[n];
 242
 243         if (!done_smc && (!nd->model || strcmp(nd->model, "smc91c111") == 0)) {
 244             smc91c111_init(nd, 0x10010000, sic[25]);
 245             done_smc = 1;
 246         } else {
 247             pci_nic_init_nofail(nd, "rtl8139", NULL);
 248         }
 249     }
 250     if (usb_enabled) {
 251         pci_create_simple(pci_bus, -1, "pci-ohci");
 252     }
 253     n = drive_get_max_bus(IF_SCSI);
 254     while (n >= 0) {
 255         pci_create_simple(pci_bus, -1, "lsi53c895a");
 256         n--;
 257     }
 258
 259     sysbus_create_simple("pl011", 0x101f1000, pic[12]);
 260     sysbus_create_simple("pl011", 0x101f2000, pic[13]);
 261     sysbus_create_simple("pl011", 0x101f3000, pic[14]);
 262     sysbus_create_simple("pl011", 0x10009000, sic[6]);
 263
 264     sysbus_create_simple("pl080", 0x10130000, pic[17]);
 265     sysbus_create_simple("sp804", 0x101e2000, pic[4]);
 266     sysbus_create_simple("sp804", 0x101e3000, pic[5]);
 267
 268     /* The versatile/PB actually has a modified Color LCD controller
 269        that includes hardware cursor support from the PL111.  */
 270     dev = sysbus_create_simple("pl110_versatile", 0x10120000, pic[16]);
 271     /* Wire up the mux control signals from the SYS_CLCD register */
 272     qdev_connect_gpio_out(sysctl, 0, qdev_get_gpio_in(dev, 0));
 273
 274     sysbus_create_varargs("pl181", 0x10005000, sic[22], sic[1], NULL);
 275     sysbus_create_varargs("pl181", 0x1000b000, sic[23], sic[2], NULL);
 276
 277     /* Add PL031 Real Time Clock. */
 278     sysbus_create_simple("pl031", 0x101e8000, pic[10]);
 279
 280     dev = sysbus_create_simple("versatile_i2c", 0x10002000, NULL);
 281     i2c = (i2c_bus *)qdev_get_child_bus(dev, "i2c");
 282     i2c_create_slave(i2c, "ds1338", 0x68);
 283
 284     /* Add PL041 AACI Interface to the LM4549 codec */
 285     pl041 = qdev_create(NULL, "pl041");
 286     qdev_prop_set_uint32(pl041, "nc_fifo_depth", 512);
 287     qdev_init_nofail(pl041);
 288     sysbus_mmio_map(sysbus_from_qdev(pl041), 0, 0x10004000);
 289     sysbus_connect_irq(sysbus_from_qdev(pl041), 0, sic[24]);
 290
 291     /* Memory map for Versatile/PB:  */
 292     /* 0x10000000 System registers.  */
 293     /* 0x10001000 PCI controller config registers.  */
 294     /* 0x10002000 Serial bus interface.  */
 295     /*  0x10003000 Secondary interrupt controller.  */
 296     /* 0x10004000 AACI (audio).  */
 297     /*  0x10005000 MMCI0.  */
 298     /*  0x10006000 KMI0 (keyboard).  */
 299     /*  0x10007000 KMI1 (mouse).  */
 300     /* 0x10008000 Character LCD Interface.  */
 301     /*  0x10009000 UART3.  */
 302     /* 0x1000a000 Smart card 1.  */
 303     /*  0x1000b000 MMCI1.  */
 304     /*  0x10010000 Ethernet.  */
 305     /* 0x10020000 USB.  */
 306     /* 0x10100000 SSMC.  */
 307     /* 0x10110000 MPMC.  */
 308     /*  0x10120000 CLCD Controller.  */
 309     /*  0x10130000 DMA Controller.  */
 310     /*  0x10140000 Vectored interrupt controller.  */
 311     /* 0x101d0000 AHB Monitor Interface.  */
 312     /* 0x101e0000 System Controller.  */
 313     /* 0x101e1000 Watchdog Interface.  */
 314     /* 0x101e2000 Timer 0/1.  */
 315     /* 0x101e3000 Timer 2/3.  */
 316     /* 0x101e4000 GPIO port 0.  */
 317     /* 0x101e5000 GPIO port 1.  */
 318     /* 0x101e6000 GPIO port 2.  */
 319     /* 0x101e7000 GPIO port 3.  */
 320     /* 0x101e8000 RTC.  */
 321     /* 0x101f0000 Smart card 0.  */
 322     /*  0x101f1000 UART0.  */
 323     /*  0x101f2000 UART1.  */
 324     /*  0x101f3000 UART2.  */
 325     /* 0x101f4000 SSPI.  */
 326     /* 0x34000000 NOR Flash */
 327
 328     dinfo = drive_get(IF_PFLASH, 0, 0);
 329     if (!pflash_cfi01_register(VERSATILE_FLASH_ADDR, NULL, "versatile.flash",
 330                           VERSATILE_FLASH_SIZE, dinfo ? dinfo->bdrv : NULL,
 331                           VERSATILE_FLASH_SECT_SIZE,
 332                           VERSATILE_FLASH_SIZE / VERSATILE_FLASH_SECT_SIZE,
 333                           4, 0x0089, 0x0018, 0x0000, 0x0, 0)) {
 334         fprintf(stderr, "qemu: Error registering flash memory.\n");
 335     }
 336
 337     versatile_binfo.ram_size = ram_size;
 338     versatile_binfo.kernel_filename = kernel_filename;
 339     versatile_binfo.kernel_cmdline = kernel_cmdline;
 340     versatile_binfo.initrd_filename = initrd_filename;
 341     versatile_binfo.board_id = board_id;
 342     arm_load_kernel(cpu, &versatile_binfo);
 343 }
 344
 345 static void vpb_init(ram_addr_t ram_size,
 346                      const char *boot_device,
 347                      const char *kernel_filename, const char *kernel_cmdline,
 348                      const char *initrd_filename, const char *cpu_model)
 349 {
 350     versatile_init(ram_size,
 351                    boot_device,
 352                    kernel_filename, kernel_cmdline,
 353                    initrd_filename, cpu_model, 0x183);
 354 }
 355
 356 static void vab_init(ram_addr_t ram_size,
 357                      const char *boot_device,
 358                      const char *kernel_filename, const char *kernel_cmdline,
 359                      const char *initrd_filename, const char *cpu_model)
 360 {
 361     versatile_init(ram_size,
 362                    boot_device,
 363                    kernel_filename, kernel_cmdline,
 364                    initrd_filename, cpu_model, 0x25e);
 365 }
 366
 367 static QEMUMachine versatilepb_machine = {
 368     .name = "versatilepb",
 369     .desc = "ARM Versatile/PB (ARM926EJ-S)",
 370     .init = vpb_init,
 371     .use_scsi = 1,
 372 };
 373
 374 static QEMUMachine versatileab_machine = {
 375     .name = "versatileab",
 376     .desc = "ARM Versatile/AB (ARM926EJ-S)",
 377     .init = vab_init,
 378     .use_scsi = 1,
 379 };
 380
 381 static void versatile_machine_init(void)
 382 {
 383     qemu_register_machine(&versatilepb_machine);
 384     qemu_register_machine(&versatileab_machine);
 385 }
 386
 387 machine_init(versatile_machine_init);
 388
 389 static void vpb_sic_class_init(ObjectClass *klass, void *data)
 390 {
 391     DeviceClass *dc = DEVICE_CLASS(klass);
 392     SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 393
 394     k->init = vpb_sic_init;
 395     dc->no_user = 1;
 396     dc->vmsd = &vmstate_vpb_sic;
 397 }
 398
 399 static TypeInfo vpb_sic_info = {
 400     .name          = "versatilepb_sic",
 401     .parent        = TYPE_SYS_BUS_DEVICE,
 402     .instance_size = sizeof(vpb_sic_state),
 403     .class_init    = vpb_sic_class_init,
 404 };
 405
 406 static void versatilepb_register_types(void)
 407 {
 408     type_register_static(&vpb_sic_info);
 409 }
 410
 411 type_init(versatilepb_register_types)