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