hw/vexpress.c

   1 /*
   2  * ARM Versatile Express emulation.
   3  *
   4  * Copyright (c) 2010 - 2011 B Labs Ltd.
   5  * Copyright (c) 2011 Linaro Limited
   6  * Written by Bahadir Balban, Amit Mahajan, Peter Maydell
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License version 2 as
  10  *  published by the Free Software Foundation.
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License along
  18  *  with this program; if not, see <http://www.gnu.org/licenses/>.
  19  *
  20  *  Contributions after 2012-01-13 are licensed under the terms of the
  21  *  GNU GPL, version 2 or (at your option) any later version.
  22  */
  23
  24 #include "sysbus.h"
  25 #include "arm-misc.h"
  26 #include "primecell.h"
  27 #include "devices.h"
  28 #include "net.h"
  29 #include "sysemu.h"
  30 #include "boards.h"
  31 #include "exec-memory.h"
  32 #include "blockdev.h"
  33 #include "flash.h"
  34
  35 #define VEXPRESS_BOARD_ID 0x8e0
  36 #define VEXPRESS_FLASH_SIZE (64 * 1024 * 1024)
  37 #define VEXPRESS_FLASH_SECT_SIZE (256 * 1024)
  38
  39 static struct arm_boot_info vexpress_binfo;
  40
  41 /* Address maps for peripherals:
  42  * the Versatile Express motherboard has two possible maps,
  43  * the "legacy" one (used for A9) and the "Cortex-A Series"
  44  * map (used for newer cores).
  45  * Individual daughterboards can also have different maps for
  46  * their peripherals.
  47  */
  48
  49 enum {
  50     VE_SYSREGS,
  51     VE_SP810,
  52     VE_SERIALPCI,
  53     VE_PL041,
  54     VE_MMCI,
  55     VE_KMI0,
  56     VE_KMI1,
  57     VE_UART0,
  58     VE_UART1,
  59     VE_UART2,
  60     VE_UART3,
  61     VE_WDT,
  62     VE_TIMER01,
  63     VE_TIMER23,
  64     VE_SERIALDVI,
  65     VE_RTC,
  66     VE_COMPACTFLASH,
  67     VE_CLCD,
  68     VE_NORFLASH0,
  69     VE_NORFLASH1,
  70     VE_SRAM,
  71     VE_VIDEORAM,
  72     VE_ETHERNET,
  73     VE_USB,
  74     VE_DAPROM,
  75 };
  76
  77 static hwaddr motherboard_legacy_map[] = {
  78     /* CS7: 0x10000000 .. 0x10020000 */
  79     [VE_SYSREGS] = 0x10000000,
  80     [VE_SP810] = 0x10001000,
  81     [VE_SERIALPCI] = 0x10002000,
  82     [VE_PL041] = 0x10004000,
  83     [VE_MMCI] = 0x10005000,
  84     [VE_KMI0] = 0x10006000,
  85     [VE_KMI1] = 0x10007000,
  86     [VE_UART0] = 0x10009000,
  87     [VE_UART1] = 0x1000a000,
  88     [VE_UART2] = 0x1000b000,
  89     [VE_UART3] = 0x1000c000,
  90     [VE_WDT] = 0x1000f000,
  91     [VE_TIMER01] = 0x10011000,
  92     [VE_TIMER23] = 0x10012000,
  93     [VE_SERIALDVI] = 0x10016000,
  94     [VE_RTC] = 0x10017000,
  95     [VE_COMPACTFLASH] = 0x1001a000,
  96     [VE_CLCD] = 0x1001f000,
  97     /* CS0: 0x40000000 .. 0x44000000 */
  98     [VE_NORFLASH0] = 0x40000000,
  99     /* CS1: 0x44000000 .. 0x48000000 */
 100     [VE_NORFLASH1] = 0x44000000,
 101     /* CS2: 0x48000000 .. 0x4a000000 */
 102     [VE_SRAM] = 0x48000000,
 103     /* CS3: 0x4c000000 .. 0x50000000 */
 104     [VE_VIDEORAM] = 0x4c000000,
 105     [VE_ETHERNET] = 0x4e000000,
 106     [VE_USB] = 0x4f000000,
 107 };
 108
 109 static hwaddr motherboard_aseries_map[] = {
 110     /* CS0: 0x08000000 .. 0x0c000000 */
 111     [VE_NORFLASH0] = 0x08000000,
 112     /* CS4: 0x0c000000 .. 0x10000000 */
 113     [VE_NORFLASH1] = 0x0c000000,
 114     /* CS5: 0x10000000 .. 0x14000000 */
 115     /* CS1: 0x14000000 .. 0x18000000 */
 116     [VE_SRAM] = 0x14000000,
 117     /* CS2: 0x18000000 .. 0x1c000000 */
 118     [VE_VIDEORAM] = 0x18000000,
 119     [VE_ETHERNET] = 0x1a000000,
 120     [VE_USB] = 0x1b000000,
 121     /* CS3: 0x1c000000 .. 0x20000000 */
 122     [VE_DAPROM] = 0x1c000000,
 123     [VE_SYSREGS] = 0x1c010000,
 124     [VE_SP810] = 0x1c020000,
 125     [VE_SERIALPCI] = 0x1c030000,
 126     [VE_PL041] = 0x1c040000,
 127     [VE_MMCI] = 0x1c050000,
 128     [VE_KMI0] = 0x1c060000,
 129     [VE_KMI1] = 0x1c070000,
 130     [VE_UART0] = 0x1c090000,
 131     [VE_UART1] = 0x1c0a0000,
 132     [VE_UART2] = 0x1c0b0000,
 133     [VE_UART3] = 0x1c0c0000,
 134     [VE_WDT] = 0x1c0f0000,
 135     [VE_TIMER01] = 0x1c110000,
 136     [VE_TIMER23] = 0x1c120000,
 137     [VE_SERIALDVI] = 0x1c160000,
 138     [VE_RTC] = 0x1c170000,
 139     [VE_COMPACTFLASH] = 0x1c1a0000,
 140     [VE_CLCD] = 0x1c1f0000,
 141 };
 142
 143 /* Structure defining the peculiarities of a specific daughterboard */
 144
 145 typedef struct VEDBoardInfo VEDBoardInfo;
 146
 147 typedef void DBoardInitFn(const VEDBoardInfo *daughterboard,
 148                           ram_addr_t ram_size,
 149                           const char *cpu_model,
 150                           qemu_irq *pic, uint32_t *proc_id);
 151
 152 struct VEDBoardInfo {
 153     const hwaddr *motherboard_map;
 154     hwaddr loader_start;
 155     const hwaddr gic_cpu_if_addr;
 156     DBoardInitFn *init;
 157 };
 158
 159 static void a9_daughterboard_init(const VEDBoardInfo *daughterboard,
 160                                   ram_addr_t ram_size,
 161                                   const char *cpu_model,
 162                                   qemu_irq *pic, uint32_t *proc_id)
 163 {
 164     MemoryRegion *sysmem = get_system_memory();
 165     MemoryRegion *ram = g_new(MemoryRegion, 1);
 166     MemoryRegion *lowram = g_new(MemoryRegion, 1);
 167     DeviceState *dev;
 168     SysBusDevice *busdev;
 169     qemu_irq *irqp;
 170     int n;
 171     qemu_irq cpu_irq[4];
 172     ram_addr_t low_ram_size;
 173
 174     if (!cpu_model) {
 175         cpu_model = "cortex-a9";
 176     }
 177
 178     *proc_id = 0x0c000191;
 179
 180     for (n = 0; n < smp_cpus; n++) {
 181         ARMCPU *cpu = cpu_arm_init(cpu_model);
 182         if (!cpu) {
 183             fprintf(stderr, "Unable to find CPU definition\n");
 184             exit(1);
 185         }
 186         irqp = arm_pic_init_cpu(cpu);
 187         cpu_irq[n] = irqp[ARM_PIC_CPU_IRQ];
 188     }
 189
 190     if (ram_size > 0x40000000) {
 191         /* 1GB is the maximum the address space permits */
 192         fprintf(stderr, "vexpress-a9: cannot model more than 1GB RAM\n");
 193         exit(1);
 194     }
 195
 196     memory_region_init_ram(ram, "vexpress.highmem", ram_size);
 197     vmstate_register_ram_global(ram);
 198     low_ram_size = ram_size;
 199     if (low_ram_size > 0x4000000) {
 200         low_ram_size = 0x4000000;
 201     }
 202     /* RAM is from 0x60000000 upwards. The bottom 64MB of the
 203      * address space should in theory be remappable to various
 204      * things including ROM or RAM; we always map the RAM there.
 205      */
 206     memory_region_init_alias(lowram, "vexpress.lowmem", ram, 0, low_ram_size);
 207     memory_region_add_subregion(sysmem, 0x0, lowram);
 208     memory_region_add_subregion(sysmem, 0x60000000, ram);
 209
 210     /* 0x1e000000 A9MPCore (SCU) private memory region */
 211     dev = qdev_create(NULL, "a9mpcore_priv");
 212     qdev_prop_set_uint32(dev, "num-cpu", smp_cpus);
 213     qdev_init_nofail(dev);
 214     busdev = sysbus_from_qdev(dev);
 215     sysbus_mmio_map(busdev, 0, 0x1e000000);
 216     for (n = 0; n < smp_cpus; n++) {
 217         sysbus_connect_irq(busdev, n, cpu_irq[n]);
 218     }
 219     /* Interrupts [42:0] are from the motherboard;
 220      * [47:43] are reserved; [63:48] are daughterboard
 221      * peripherals. Note that some documentation numbers
 222      * external interrupts starting from 32 (because the
 223      * A9MP has internal interrupts 0..31).
 224      */
 225     for (n = 0; n < 64; n++) {
 226         pic[n] = qdev_get_gpio_in(dev, n);
 227     }
 228
 229     /* Daughterboard peripherals : 0x10020000 .. 0x20000000 */
 230
 231     /* 0x10020000 PL111 CLCD (daughterboard) */
 232     sysbus_create_simple("pl111", 0x10020000, pic[44]);
 233
 234     /* 0x10060000 AXI RAM */
 235     /* 0x100e0000 PL341 Dynamic Memory Controller */
 236     /* 0x100e1000 PL354 Static Memory Controller */
 237     /* 0x100e2000 System Configuration Controller */
 238
 239     sysbus_create_simple("sp804", 0x100e4000, pic[48]);
 240     /* 0x100e5000 SP805 Watchdog module */
 241     /* 0x100e6000 BP147 TrustZone Protection Controller */
 242     /* 0x100e9000 PL301 'Fast' AXI matrix */
 243     /* 0x100ea000 PL301 'Slow' AXI matrix */
 244     /* 0x100ec000 TrustZone Address Space Controller */
 245     /* 0x10200000 CoreSight debug APB */
 246     /* 0x1e00a000 PL310 L2 Cache Controller */
 247     sysbus_create_varargs("l2x0", 0x1e00a000, NULL);
 248 }
 249
 250 static const VEDBoardInfo a9_daughterboard = {
 251     .motherboard_map = motherboard_legacy_map,
 252     .loader_start = 0x60000000,
 253     .gic_cpu_if_addr = 0x1e000100,
 254     .init = a9_daughterboard_init,
 255 };
 256
 257 static void a15_daughterboard_init(const VEDBoardInfo *daughterboard,
 258                                    ram_addr_t ram_size,
 259                                    const char *cpu_model,
 260                                    qemu_irq *pic, uint32_t *proc_id)
 261 {
 262     int n;
 263     MemoryRegion *sysmem = get_system_memory();
 264     MemoryRegion *ram = g_new(MemoryRegion, 1);
 265     MemoryRegion *sram = g_new(MemoryRegion, 1);
 266     qemu_irq cpu_irq[4];
 267     DeviceState *dev;
 268     SysBusDevice *busdev;
 269
 270     if (!cpu_model) {
 271         cpu_model = "cortex-a15";
 272     }
 273
 274     *proc_id = 0x14000217;
 275
 276     for (n = 0; n < smp_cpus; n++) {
 277         ARMCPU *cpu;
 278         qemu_irq *irqp;
 279
 280         cpu = cpu_arm_init(cpu_model);
 281         if (!cpu) {
 282             fprintf(stderr, "Unable to find CPU definition\n");
 283             exit(1);
 284         }
 285         irqp = arm_pic_init_cpu(cpu);
 286         cpu_irq[n] = irqp[ARM_PIC_CPU_IRQ];
 287     }
 288
 289     {
 290         /* We have to use a separate 64 bit variable here to avoid the gcc
 291          * "comparison is always false due to limited range of data type"
 292          * warning if we are on a host where ram_addr_t is 32 bits.
 293          */
 294         uint64_t rsz = ram_size;
 295         if (rsz > (30ULL * 1024 * 1024 * 1024)) {
 296             fprintf(stderr, "vexpress-a15: cannot model more than 30GB RAM\n");
 297             exit(1);
 298         }
 299     }
 300
 301     memory_region_init_ram(ram, "vexpress.highmem", ram_size);
 302     vmstate_register_ram_global(ram);
 303     /* RAM is from 0x80000000 upwards; there is no low-memory alias for it. */
 304     memory_region_add_subregion(sysmem, 0x80000000, ram);
 305
 306     /* 0x2c000000 A15MPCore private memory region (GIC) */
 307     dev = qdev_create(NULL, "a15mpcore_priv");
 308     qdev_prop_set_uint32(dev, "num-cpu", smp_cpus);
 309     qdev_init_nofail(dev);
 310     busdev = sysbus_from_qdev(dev);
 311     sysbus_mmio_map(busdev, 0, 0x2c000000);
 312     for (n = 0; n < smp_cpus; n++) {
 313         sysbus_connect_irq(busdev, n, cpu_irq[n]);
 314     }
 315     /* Interrupts [42:0] are from the motherboard;
 316      * [47:43] are reserved; [63:48] are daughterboard
 317      * peripherals. Note that some documentation numbers
 318      * external interrupts starting from 32 (because there
 319      * are internal interrupts 0..31).
 320      */
 321     for (n = 0; n < 64; n++) {
 322         pic[n] = qdev_get_gpio_in(dev, n);
 323     }
 324
 325     /* A15 daughterboard peripherals: */
 326
 327     /* 0x20000000: CoreSight interfaces: not modelled */
 328     /* 0x2a000000: PL301 AXI interconnect: not modelled */
 329     /* 0x2a420000: SCC: not modelled */
 330     /* 0x2a430000: system counter: not modelled */
 331     /* 0x2b000000: HDLCD controller: not modelled */
 332     /* 0x2b060000: SP805 watchdog: not modelled */
 333     /* 0x2b0a0000: PL341 dynamic memory controller: not modelled */
 334     /* 0x2e000000: system SRAM */
 335     memory_region_init_ram(sram, "vexpress.a15sram", 0x10000);
 336     vmstate_register_ram_global(sram);
 337     memory_region_add_subregion(sysmem, 0x2e000000, sram);
 338
 339     /* 0x7ffb0000: DMA330 DMA controller: not modelled */
 340     /* 0x7ffd0000: PL354 static memory controller: not modelled */
 341 }
 342
 343 static const VEDBoardInfo a15_daughterboard = {
 344     .motherboard_map = motherboard_aseries_map,
 345     .loader_start = 0x80000000,
 346     .gic_cpu_if_addr = 0x2c002000,
 347     .init = a15_daughterboard_init,
 348 };
 349
 350 static void vexpress_common_init(const VEDBoardInfo *daughterboard,
 351                                  QEMUMachineInitArgs *args)
 352 {
 353     DeviceState *dev, *sysctl, *pl041;
 354     qemu_irq pic[64];
 355     uint32_t proc_id;
 356     uint32_t sys_id;
 357     DriveInfo *dinfo;
 358     ram_addr_t vram_size, sram_size;
 359     MemoryRegion *sysmem = get_system_memory();
 360     MemoryRegion *vram = g_new(MemoryRegion, 1);
 361     MemoryRegion *sram = g_new(MemoryRegion, 1);
 362     const hwaddr *map = daughterboard->motherboard_map;
 363
 364     daughterboard->init(daughterboard, args->ram_size, args->cpu_model,
 365                         pic, &proc_id);
 366
 367     /* Motherboard peripherals: the wiring is the same but the
 368      * addresses vary between the legacy and A-Series memory maps.
 369      */
 370
 371     sys_id = 0x1190f500;
 372
 373     sysctl = qdev_create(NULL, "realview_sysctl");
 374     qdev_prop_set_uint32(sysctl, "sys_id", sys_id);
 375     qdev_prop_set_uint32(sysctl, "proc_id", proc_id);
 376     qdev_init_nofail(sysctl);
 377     sysbus_mmio_map(sysbus_from_qdev(sysctl), 0, map[VE_SYSREGS]);
 378
 379     /* VE_SP810: not modelled */
 380     /* VE_SERIALPCI: not modelled */
 381
 382     pl041 = qdev_create(NULL, "pl041");
 383     qdev_prop_set_uint32(pl041, "nc_fifo_depth", 512);
 384     qdev_init_nofail(pl041);
 385     sysbus_mmio_map(sysbus_from_qdev(pl041), 0, map[VE_PL041]);
 386     sysbus_connect_irq(sysbus_from_qdev(pl041), 0, pic[11]);
 387
 388     dev = sysbus_create_varargs("pl181", map[VE_MMCI], pic[9], pic[10], NULL);
 389     /* Wire up MMC card detect and read-only signals */
 390     qdev_connect_gpio_out(dev, 0,
 391                           qdev_get_gpio_in(sysctl, ARM_SYSCTL_GPIO_MMC_WPROT));
 392     qdev_connect_gpio_out(dev, 1,
 393                           qdev_get_gpio_in(sysctl, ARM_SYSCTL_GPIO_MMC_CARDIN));
 394
 395     sysbus_create_simple("pl050_keyboard", map[VE_KMI0], pic[12]);
 396     sysbus_create_simple("pl050_mouse", map[VE_KMI1], pic[13]);
 397
 398     sysbus_create_simple("pl011", map[VE_UART0], pic[5]);
 399     sysbus_create_simple("pl011", map[VE_UART1], pic[6]);
 400     sysbus_create_simple("pl011", map[VE_UART2], pic[7]);
 401     sysbus_create_simple("pl011", map[VE_UART3], pic[8]);
 402
 403     sysbus_create_simple("sp804", map[VE_TIMER01], pic[2]);
 404     sysbus_create_simple("sp804", map[VE_TIMER23], pic[3]);
 405
 406     /* VE_SERIALDVI: not modelled */
 407
 408     sysbus_create_simple("pl031", map[VE_RTC], pic[4]); /* RTC */
 409
 410     /* VE_COMPACTFLASH: not modelled */
 411
 412     sysbus_create_simple("pl111", map[VE_CLCD], pic[14]);
 413
 414     dinfo = drive_get_next(IF_PFLASH);
 415     if (!pflash_cfi01_register(map[VE_NORFLASH0], NULL, "vexpress.flash0",
 416             VEXPRESS_FLASH_SIZE, dinfo ? dinfo->bdrv : NULL,
 417             VEXPRESS_FLASH_SECT_SIZE,
 418             VEXPRESS_FLASH_SIZE / VEXPRESS_FLASH_SECT_SIZE, 4,
 419             0x00, 0x89, 0x00, 0x18, 0)) {
 420         fprintf(stderr, "vexpress: error registering flash 0.\n");
 421         exit(1);
 422     }
 423
 424     dinfo = drive_get_next(IF_PFLASH);
 425     if (!pflash_cfi01_register(map[VE_NORFLASH1], NULL, "vexpress.flash1",
 426             VEXPRESS_FLASH_SIZE, dinfo ? dinfo->bdrv : NULL,
 427             VEXPRESS_FLASH_SECT_SIZE,
 428             VEXPRESS_FLASH_SIZE / VEXPRESS_FLASH_SECT_SIZE, 4,
 429             0x00, 0x89, 0x00, 0x18, 0)) {
 430         fprintf(stderr, "vexpress: error registering flash 1.\n");
 431         exit(1);
 432     }
 433
 434     sram_size = 0x2000000;
 435     memory_region_init_ram(sram, "vexpress.sram", sram_size);
 436     vmstate_register_ram_global(sram);
 437     memory_region_add_subregion(sysmem, map[VE_SRAM], sram);
 438
 439     vram_size = 0x800000;
 440     memory_region_init_ram(vram, "vexpress.vram", vram_size);
 441     vmstate_register_ram_global(vram);
 442     memory_region_add_subregion(sysmem, map[VE_VIDEORAM], vram);
 443
 444     /* 0x4e000000 LAN9118 Ethernet */
 445     if (nd_table[0].used) {
 446         lan9118_init(&nd_table[0], map[VE_ETHERNET], pic[15]);
 447     }
 448
 449     /* VE_USB: not modelled */
 450
 451     /* VE_DAPROM: not modelled */
 452
 453     vexpress_binfo.ram_size = args->ram_size;
 454     vexpress_binfo.kernel_filename = args->kernel_filename;
 455     vexpress_binfo.kernel_cmdline = args->kernel_cmdline;
 456     vexpress_binfo.initrd_filename = args->initrd_filename;
 457     vexpress_binfo.nb_cpus = smp_cpus;
 458     vexpress_binfo.board_id = VEXPRESS_BOARD_ID;
 459     vexpress_binfo.loader_start = daughterboard->loader_start;
 460     vexpress_binfo.smp_loader_start = map[VE_SRAM];
 461     vexpress_binfo.smp_bootreg_addr = map[VE_SYSREGS] + 0x30;
 462     vexpress_binfo.gic_cpu_if_addr = daughterboard->gic_cpu_if_addr;
 463     arm_load_kernel(arm_env_get_cpu(first_cpu), &vexpress_binfo);
 464 }
 465
 466 static void vexpress_a9_init(QEMUMachineInitArgs *args)
 467 {
 468     vexpress_common_init(&a9_daughterboard, args);
 469 }
 470
 471 static void vexpress_a15_init(QEMUMachineInitArgs *args)
 472 {
 473     vexpress_common_init(&a15_daughterboard, args);
 474 }
 475
 476 static QEMUMachine vexpress_a9_machine = {
 477     .name = "vexpress-a9",
 478     .desc = "ARM Versatile Express for Cortex-A9",
 479     .init = vexpress_a9_init,
 480     .use_scsi = 1,
 481     .max_cpus = 4,
 482 };
 483
 484 static QEMUMachine vexpress_a15_machine = {
 485     .name = "vexpress-a15",
 486     .desc = "ARM Versatile Express for Cortex-A15",
 487     .init = vexpress_a15_init,
 488     .use_scsi = 1,
 489     .max_cpus = 4,
 490 };
 491
 492 static void vexpress_machine_init(void)
 493 {
 494     qemu_register_machine(&vexpress_a9_machine);
 495     qemu_register_machine(&vexpress_a15_machine);
 496 }
 497
 498 machine_init(vexpress_machine_init);