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
  33 #define VEXPRESS_BOARD_ID 0x8e0
  34
  35 static struct arm_boot_info vexpress_binfo;
  36
  37 /* Address maps for peripherals:
  38  * the Versatile Express motherboard has two possible maps,
  39  * the "legacy" one (used for A9) and the "Cortex-A Series"
  40  * map (used for newer cores).
  41  * Individual daughterboards can also have different maps for
  42  * their peripherals.
  43  */
  44
  45 enum {
  46     VE_SYSREGS,
  47     VE_SP810,
  48     VE_SERIALPCI,
  49     VE_PL041,
  50     VE_MMCI,
  51     VE_KMI0,
  52     VE_KMI1,
  53     VE_UART0,
  54     VE_UART1,
  55     VE_UART2,
  56     VE_UART3,
  57     VE_WDT,
  58     VE_TIMER01,
  59     VE_TIMER23,
  60     VE_SERIALDVI,
  61     VE_RTC,
  62     VE_COMPACTFLASH,
  63     VE_CLCD,
  64     VE_NORFLASH0,
  65     VE_NORFLASH0ALIAS,
  66     VE_NORFLASH1,
  67     VE_SRAM,
  68     VE_VIDEORAM,
  69     VE_ETHERNET,
  70     VE_USB,
  71     VE_DAPROM,
  72 };
  73
  74 static target_phys_addr_t motherboard_legacy_map[] = {
  75     /* CS7: 0x10000000 .. 0x10020000 */
  76     [VE_SYSREGS] = 0x10000000,
  77     [VE_SP810] = 0x10001000,
  78     [VE_SERIALPCI] = 0x10002000,
  79     [VE_PL041] = 0x10004000,
  80     [VE_MMCI] = 0x10005000,
  81     [VE_KMI0] = 0x10006000,
  82     [VE_KMI1] = 0x10007000,
  83     [VE_UART0] = 0x10009000,
  84     [VE_UART1] = 0x1000a000,
  85     [VE_UART2] = 0x1000b000,
  86     [VE_UART3] = 0x1000c000,
  87     [VE_WDT] = 0x1000f000,
  88     [VE_TIMER01] = 0x10011000,
  89     [VE_TIMER23] = 0x10012000,
  90     [VE_SERIALDVI] = 0x10016000,
  91     [VE_RTC] = 0x10017000,
  92     [VE_COMPACTFLASH] = 0x1001a000,
  93     [VE_CLCD] = 0x1001f000,
  94     /* CS0: 0x40000000 .. 0x44000000 */
  95     [VE_NORFLASH0] = 0x40000000,
  96     /* CS1: 0x44000000 .. 0x48000000 */
  97     [VE_NORFLASH1] = 0x44000000,
  98     /* CS2: 0x48000000 .. 0x4a000000 */
  99     [VE_SRAM] = 0x48000000,
 100     /* CS3: 0x4c000000 .. 0x50000000 */
 101     [VE_VIDEORAM] = 0x4c000000,
 102     [VE_ETHERNET] = 0x4e000000,
 103     [VE_USB] = 0x4f000000,
 104 };
 105
 106 static target_phys_addr_t motherboard_aseries_map[] = {
 107     /* CS0: 0x00000000 .. 0x0c000000 */
 108     [VE_NORFLASH0] = 0x00000000,
 109     [VE_NORFLASH0ALIAS] = 0x08000000,
 110     /* CS4: 0x0c000000 .. 0x10000000 */
 111     [VE_NORFLASH1] = 0x0c000000,
 112     /* CS5: 0x10000000 .. 0x14000000 */
 113     /* CS1: 0x14000000 .. 0x18000000 */
 114     [VE_SRAM] = 0x14000000,
 115     /* CS2: 0x18000000 .. 0x1c000000 */
 116     [VE_VIDEORAM] = 0x18000000,
 117     [VE_ETHERNET] = 0x1a000000,
 118     [VE_USB] = 0x1b000000,
 119     /* CS3: 0x1c000000 .. 0x20000000 */
 120     [VE_DAPROM] = 0x1c000000,
 121     [VE_SYSREGS] = 0x1c010000,
 122     [VE_SP810] = 0x1c020000,
 123     [VE_SERIALPCI] = 0x1c030000,
 124     [VE_PL041] = 0x1c040000,
 125     [VE_MMCI] = 0x1c050000,
 126     [VE_KMI0] = 0x1c060000,
 127     [VE_KMI1] = 0x1c070000,
 128     [VE_UART0] = 0x1c090000,
 129     [VE_UART1] = 0x1c0a0000,
 130     [VE_UART2] = 0x1c0b0000,
 131     [VE_UART3] = 0x1c0c0000,
 132     [VE_WDT] = 0x1c0f0000,
 133     [VE_TIMER01] = 0x1c110000,
 134     [VE_TIMER23] = 0x1c120000,
 135     [VE_SERIALDVI] = 0x1c160000,
 136     [VE_RTC] = 0x1c170000,
 137     [VE_COMPACTFLASH] = 0x1c1a0000,
 138     [VE_CLCD] = 0x1c1f0000,
 139 };
 140
 141 /* Structure defining the peculiarities of a specific daughterboard */
 142
 143 typedef struct VEDBoardInfo VEDBoardInfo;
 144
 145 typedef void DBoardInitFn(const VEDBoardInfo *daughterboard,
 146                           ram_addr_t ram_size,
 147                           const char *cpu_model,
 148                           qemu_irq *pic, uint32_t *proc_id);
 149
 150 struct VEDBoardInfo {
 151     const target_phys_addr_t *motherboard_map;
 152     target_phys_addr_t loader_start;
 153     const target_phys_addr_t gic_cpu_if_addr;
 154     DBoardInitFn *init;
 155 };
 156
 157 static void a9_daughterboard_init(const VEDBoardInfo *daughterboard,
 158                                   ram_addr_t ram_size,
 159                                   const char *cpu_model,
 160                                   qemu_irq *pic, uint32_t *proc_id)
 161 {
 162     CPUARMState *env = NULL;
 163     MemoryRegion *sysmem = get_system_memory();
 164     MemoryRegion *ram = g_new(MemoryRegion, 1);
 165     MemoryRegion *lowram = g_new(MemoryRegion, 1);
 166     DeviceState *dev;
 167     SysBusDevice *busdev;
 168     qemu_irq *irqp;
 169     int n;
 170     qemu_irq cpu_irq[4];
 171     ram_addr_t low_ram_size;
 172
 173     if (!cpu_model) {
 174         cpu_model = "cortex-a9";
 175     }
 176
 177     *proc_id = 0x0c000191;
 178
 179     for (n = 0; n < smp_cpus; n++) {
 180         env = cpu_init(cpu_model);
 181         if (!env) {
 182             fprintf(stderr, "Unable to find CPU definition\n");
 183             exit(1);
 184         }
 185         irqp = arm_pic_init_cpu(env);
 186         cpu_irq[n] = irqp[ARM_PIC_CPU_IRQ];
 187     }
 188
 189     if (ram_size > 0x40000000) {
 190         /* 1GB is the maximum the address space permits */
 191         fprintf(stderr, "vexpress-a9: cannot model more than 1GB RAM\n");
 192         exit(1);
 193     }
 194
 195     memory_region_init_ram(ram, "vexpress.highmem", ram_size);
 196     vmstate_register_ram_global(ram);
 197     low_ram_size = ram_size;
 198     if (low_ram_size > 0x4000000) {
 199         low_ram_size = 0x4000000;
 200     }
 201     /* RAM is from 0x60000000 upwards. The bottom 64MB of the
 202      * address space should in theory be remappable to various
 203      * things including ROM or RAM; we always map the RAM there.
 204      */
 205     memory_region_init_alias(lowram, "vexpress.lowmem", ram, 0, low_ram_size);
 206     memory_region_add_subregion(sysmem, 0x0, lowram);
 207     memory_region_add_subregion(sysmem, 0x60000000, ram);
 208
 209     /* 0x1e000000 A9MPCore (SCU) private memory region */
 210     dev = qdev_create(NULL, "a9mpcore_priv");
 211     qdev_prop_set_uint32(dev, "num-cpu", smp_cpus);
 212     qdev_init_nofail(dev);
 213     busdev = sysbus_from_qdev(dev);
 214     sysbus_mmio_map(busdev, 0, 0x1e000000);
 215     for (n = 0; n < smp_cpus; n++) {
 216         sysbus_connect_irq(busdev, n, cpu_irq[n]);
 217     }
 218     /* Interrupts [42:0] are from the motherboard;
 219      * [47:43] are reserved; [63:48] are daughterboard
 220      * peripherals. Note that some documentation numbers
 221      * external interrupts starting from 32 (because the
 222      * A9MP has internal interrupts 0..31).
 223      */
 224     for (n = 0; n < 64; n++) {
 225         pic[n] = qdev_get_gpio_in(dev, n);
 226     }
 227
 228     /* Daughterboard peripherals : 0x10020000 .. 0x20000000 */
 229
 230     /* 0x10020000 PL111 CLCD (daughterboard) */
 231     sysbus_create_simple("pl111", 0x10020000, pic[44]);
 232
 233     /* 0x10060000 AXI RAM */
 234     /* 0x100e0000 PL341 Dynamic Memory Controller */
 235     /* 0x100e1000 PL354 Static Memory Controller */
 236     /* 0x100e2000 System Configuration Controller */
 237
 238     sysbus_create_simple("sp804", 0x100e4000, pic[48]);
 239     /* 0x100e5000 SP805 Watchdog module */
 240     /* 0x100e6000 BP147 TrustZone Protection Controller */
 241     /* 0x100e9000 PL301 'Fast' AXI matrix */
 242     /* 0x100ea000 PL301 'Slow' AXI matrix */
 243     /* 0x100ec000 TrustZone Address Space Controller */
 244     /* 0x10200000 CoreSight debug APB */
 245     /* 0x1e00a000 PL310 L2 Cache Controller */
 246     sysbus_create_varargs("l2x0", 0x1e00a000, NULL);
 247 }
 248
 249 static const VEDBoardInfo a9_daughterboard = {
 250     .motherboard_map = motherboard_legacy_map,
 251     .loader_start = 0x60000000,
 252     .gic_cpu_if_addr = 0x1e000100,
 253     .init = a9_daughterboard_init,
 254 };
 255
 256 static void a15_daughterboard_init(const VEDBoardInfo *daughterboard,
 257                                    ram_addr_t ram_size,
 258                                    const char *cpu_model,
 259                                    qemu_irq *pic, uint32_t *proc_id)
 260 {
 261     int n;
 262     CPUARMState *env = NULL;
 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         qemu_irq *irqp;
 278         env = cpu_init(cpu_model);
 279         if (!env) {
 280             fprintf(stderr, "Unable to find CPU definition\n");
 281             exit(1);
 282         }
 283         irqp = arm_pic_init_cpu(env);
 284         cpu_irq[n] = irqp[ARM_PIC_CPU_IRQ];
 285     }
 286
 287     if (ram_size > 0x80000000) {
 288         fprintf(stderr, "vexpress-a15: cannot model more than 2GB RAM\n");
 289         exit(1);
 290     }
 291
 292     memory_region_init_ram(ram, "vexpress.highmem", ram_size);
 293     vmstate_register_ram_global(ram);
 294     /* RAM is from 0x80000000 upwards; there is no low-memory alias for it. */
 295     memory_region_add_subregion(sysmem, 0x80000000, ram);
 296
 297     /* 0x2c000000 A15MPCore private memory region (GIC) */
 298     dev = qdev_create(NULL, "a15mpcore_priv");
 299     qdev_prop_set_uint32(dev, "num-cpu", smp_cpus);
 300     qdev_init_nofail(dev);
 301     busdev = sysbus_from_qdev(dev);
 302     sysbus_mmio_map(busdev, 0, 0x2c000000);
 303     for (n = 0; n < smp_cpus; n++) {
 304         sysbus_connect_irq(busdev, n, cpu_irq[n]);
 305     }
 306     /* Interrupts [42:0] are from the motherboard;
 307      * [47:43] are reserved; [63:48] are daughterboard
 308      * peripherals. Note that some documentation numbers
 309      * external interrupts starting from 32 (because there
 310      * are internal interrupts 0..31).
 311      */
 312     for (n = 0; n < 64; n++) {
 313         pic[n] = qdev_get_gpio_in(dev, n);
 314     }
 315
 316     /* A15 daughterboard peripherals: */
 317
 318     /* 0x20000000: CoreSight interfaces: not modelled */
 319     /* 0x2a000000: PL301 AXI interconnect: not modelled */
 320     /* 0x2a420000: SCC: not modelled */
 321     /* 0x2a430000: system counter: not modelled */
 322     /* 0x2b000000: HDLCD controller: not modelled */
 323     /* 0x2b060000: SP805 watchdog: not modelled */
 324     /* 0x2b0a0000: PL341 dynamic memory controller: not modelled */
 325     /* 0x2e000000: system SRAM */
 326     memory_region_init_ram(sram, "vexpress.a15sram", 0x10000);
 327     vmstate_register_ram_global(sram);
 328     memory_region_add_subregion(sysmem, 0x2e000000, sram);
 329
 330     /* 0x7ffb0000: DMA330 DMA controller: not modelled */
 331     /* 0x7ffd0000: PL354 static memory controller: not modelled */
 332 }
 333
 334 static const VEDBoardInfo a15_daughterboard = {
 335     .motherboard_map = motherboard_aseries_map,
 336     .loader_start = 0x80000000,
 337     .gic_cpu_if_addr = 0x2c002000,
 338     .init = a15_daughterboard_init,
 339 };
 340
 341 static void vexpress_common_init(const VEDBoardInfo *daughterboard,
 342                                  ram_addr_t ram_size,
 343                                  const char *boot_device,
 344                                  const char *kernel_filename,
 345                                  const char *kernel_cmdline,
 346                                  const char *initrd_filename,
 347                                  const char *cpu_model)
 348 {
 349     DeviceState *dev, *sysctl, *pl041;
 350     qemu_irq pic[64];
 351     uint32_t proc_id;
 352     uint32_t sys_id;
 353     ram_addr_t vram_size, sram_size;
 354     MemoryRegion *sysmem = get_system_memory();
 355     MemoryRegion *vram = g_new(MemoryRegion, 1);
 356     MemoryRegion *sram = g_new(MemoryRegion, 1);
 357     const target_phys_addr_t *map = daughterboard->motherboard_map;
 358
 359     daughterboard->init(daughterboard, ram_size, cpu_model, pic, &proc_id);
 360
 361     /* Motherboard peripherals: the wiring is the same but the
 362      * addresses vary between the legacy and A-Series memory maps.
 363      */
 364
 365     sys_id = 0x1190f500;
 366
 367     sysctl = qdev_create(NULL, "realview_sysctl");
 368     qdev_prop_set_uint32(sysctl, "sys_id", sys_id);
 369     qdev_prop_set_uint32(sysctl, "proc_id", proc_id);
 370     qdev_init_nofail(sysctl);
 371     sysbus_mmio_map(sysbus_from_qdev(sysctl), 0, map[VE_SYSREGS]);
 372
 373     /* VE_SP810: not modelled */
 374     /* VE_SERIALPCI: not modelled */
 375
 376     pl041 = qdev_create(NULL, "pl041");
 377     qdev_prop_set_uint32(pl041, "nc_fifo_depth", 512);
 378     qdev_init_nofail(pl041);
 379     sysbus_mmio_map(sysbus_from_qdev(pl041), 0, map[VE_PL041]);
 380     sysbus_connect_irq(sysbus_from_qdev(pl041), 0, pic[11]);
 381
 382     dev = sysbus_create_varargs("pl181", map[VE_MMCI], pic[9], pic[10], NULL);
 383     /* Wire up MMC card detect and read-only signals */
 384     qdev_connect_gpio_out(dev, 0,
 385                           qdev_get_gpio_in(sysctl, ARM_SYSCTL_GPIO_MMC_WPROT));
 386     qdev_connect_gpio_out(dev, 1,
 387                           qdev_get_gpio_in(sysctl, ARM_SYSCTL_GPIO_MMC_CARDIN));
 388
 389     sysbus_create_simple("pl050_keyboard", map[VE_KMI0], pic[12]);
 390     sysbus_create_simple("pl050_mouse", map[VE_KMI1], pic[13]);
 391
 392     sysbus_create_simple("pl011", map[VE_UART0], pic[5]);
 393     sysbus_create_simple("pl011", map[VE_UART1], pic[6]);
 394     sysbus_create_simple("pl011", map[VE_UART2], pic[7]);
 395     sysbus_create_simple("pl011", map[VE_UART3], pic[8]);
 396
 397     sysbus_create_simple("sp804", map[VE_TIMER01], pic[2]);
 398     sysbus_create_simple("sp804", map[VE_TIMER23], pic[3]);
 399
 400     /* VE_SERIALDVI: not modelled */
 401
 402     sysbus_create_simple("pl031", map[VE_RTC], pic[4]); /* RTC */
 403
 404     /* VE_COMPACTFLASH: not modelled */
 405
 406     sysbus_create_simple("pl111", map[VE_CLCD], pic[14]);
 407
 408     /* VE_NORFLASH0: not modelled */
 409     /* VE_NORFLASH0ALIAS: not modelled */
 410     /* VE_NORFLASH1: not modelled */
 411
 412     sram_size = 0x2000000;
 413     memory_region_init_ram(sram, "vexpress.sram", sram_size);
 414     vmstate_register_ram_global(sram);
 415     memory_region_add_subregion(sysmem, map[VE_SRAM], sram);
 416
 417     vram_size = 0x800000;
 418     memory_region_init_ram(vram, "vexpress.vram", vram_size);
 419     vmstate_register_ram_global(vram);
 420     memory_region_add_subregion(sysmem, map[VE_VIDEORAM], vram);
 421
 422     /* 0x4e000000 LAN9118 Ethernet */
 423     if (nd_table[0].vlan) {
 424         lan9118_init(&nd_table[0], map[VE_ETHERNET], pic[15]);
 425     }
 426
 427     /* VE_USB: not modelled */
 428
 429     /* VE_DAPROM: not modelled */
 430
 431     vexpress_binfo.ram_size = ram_size;
 432     vexpress_binfo.kernel_filename = kernel_filename;
 433     vexpress_binfo.kernel_cmdline = kernel_cmdline;
 434     vexpress_binfo.initrd_filename = initrd_filename;
 435     vexpress_binfo.nb_cpus = smp_cpus;
 436     vexpress_binfo.board_id = VEXPRESS_BOARD_ID;
 437     vexpress_binfo.loader_start = daughterboard->loader_start;
 438     vexpress_binfo.smp_loader_start = map[VE_SRAM];
 439     vexpress_binfo.smp_bootreg_addr = map[VE_SYSREGS] + 0x30;
 440     vexpress_binfo.gic_cpu_if_addr = daughterboard->gic_cpu_if_addr;
 441     arm_load_kernel(first_cpu, &vexpress_binfo);
 442 }
 443
 444 static void vexpress_a9_init(ram_addr_t ram_size,
 445                              const char *boot_device,
 446                              const char *kernel_filename,
 447                              const char *kernel_cmdline,
 448                              const char *initrd_filename,
 449                              const char *cpu_model)
 450 {
 451     vexpress_common_init(&a9_daughterboard,
 452                          ram_size, boot_device, kernel_filename,
 453                          kernel_cmdline, initrd_filename, cpu_model);
 454 }
 455
 456 static void vexpress_a15_init(ram_addr_t ram_size,
 457                               const char *boot_device,
 458                               const char *kernel_filename,
 459                               const char *kernel_cmdline,
 460                               const char *initrd_filename,
 461                               const char *cpu_model)
 462 {
 463     vexpress_common_init(&a15_daughterboard,
 464                          ram_size, boot_device, kernel_filename,
 465                          kernel_cmdline, initrd_filename, cpu_model);
 466 }
 467
 468 static QEMUMachine vexpress_a9_machine = {
 469     .name = "vexpress-a9",
 470     .desc = "ARM Versatile Express for Cortex-A9",
 471     .init = vexpress_a9_init,
 472     .use_scsi = 1,
 473     .max_cpus = 4,
 474 };
 475
 476 static QEMUMachine vexpress_a15_machine = {
 477     .name = "vexpress-a15",
 478     .desc = "ARM Versatile Express for Cortex-A15",
 479     .init = vexpress_a15_init,
 480     .use_scsi = 1,
 481     .max_cpus = 4,
 482 };
 483
 484 static void vexpress_machine_init(void)
 485 {
 486     qemu_register_machine(&vexpress_a9_machine);
 487     qemu_register_machine(&vexpress_a15_machine);
 488 }
 489
 490 machine_init(vexpress_machine_init);