1 /* 2 * Calxeda Highbank SoC emulation 3 * 4 * Copyright (c) 2010-2012 Calxeda 5 * 6 * This program is free software; you can redistribute it and/or modify it 7 * under the terms and conditions of the GNU General Public License, 8 * version 2 or later, as published by the Free Software Foundation. 9 * 10 * This program is distributed in the hope it will be useful, but WITHOUT 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 13 * more details. 14 * 15 * You should have received a copy of the GNU General Public License along with 16 * this program. If not, see <http://www.gnu.org/licenses/>. 17 * 18 */ 19 20 #include "qemu/osdep.h" 21 #include "qapi/error.h" 22 #include "hw/sysbus.h" 23 #include "hw/arm/arm.h" 24 #include "hw/devices.h" 25 #include "hw/loader.h" 26 #include "net/net.h" 27 #include "sysemu/kvm.h" 28 #include "sysemu/sysemu.h" 29 #include "hw/boards.h" 30 #include "exec/address-spaces.h" 31 #include "qemu/error-report.h" 32 #include "hw/char/pl011.h" 33 #include "hw/ide/ahci.h" 34 #include "hw/cpu/a9mpcore.h" 35 #include "hw/cpu/a15mpcore.h" 36 #include "qemu/log.h" 37 38 #define SMP_BOOT_ADDR 0x100 39 #define SMP_BOOT_REG 0x40 40 #define MPCORE_PERIPHBASE 0xfff10000 41 42 #define MVBAR_ADDR 0x200 43 #define BOARD_SETUP_ADDR (MVBAR_ADDR + 8 * sizeof(uint32_t)) 44 45 #define NIRQ_GIC 160 46 47 /* Board init. */ 48 49 static void hb_write_board_setup(ARMCPU *cpu, 50 const struct arm_boot_info *info) 51 { 52 arm_write_secure_board_setup_dummy_smc(cpu, info, MVBAR_ADDR); 53 } 54 55 static void hb_write_secondary(ARMCPU *cpu, const struct arm_boot_info *info) 56 { 57 int n; 58 uint32_t smpboot[] = { 59 0xee100fb0, /* mrc p15, 0, r0, c0, c0, 5 - read current core id */ 60 0xe210000f, /* ands r0, r0, #0x0f */ 61 0xe3a03040, /* mov r3, #0x40 - jump address is 0x40 + 0x10 * core id */ 62 0xe0830200, /* add r0, r3, r0, lsl #4 */ 63 0xe59f2024, /* ldr r2, privbase */ 64 0xe3a01001, /* mov r1, #1 */ 65 0xe5821100, /* str r1, [r2, #256] - set GICC_CTLR.Enable */ 66 0xe3a010ff, /* mov r1, #0xff */ 67 0xe5821104, /* str r1, [r2, #260] - set GICC_PMR.Priority to 0xff */ 68 0xf57ff04f, /* dsb */ 69 0xe320f003, /* wfi */ 70 0xe5901000, /* ldr r1, [r0] */ 71 0xe1110001, /* tst r1, r1 */ 72 0x0afffffb, /* beq <wfi> */ 73 0xe12fff11, /* bx r1 */ 74 MPCORE_PERIPHBASE /* privbase: MPCore peripheral base address. */ 75 }; 76 for (n = 0; n < ARRAY_SIZE(smpboot); n++) { 77 smpboot[n] = tswap32(smpboot[n]); 78 } 79 rom_add_blob_fixed("smpboot", smpboot, sizeof(smpboot), SMP_BOOT_ADDR); 80 } 81 82 static void hb_reset_secondary(ARMCPU *cpu, const struct arm_boot_info *info) 83 { 84 CPUARMState *env = &cpu->env; 85 86 switch (info->nb_cpus) { 87 case 4: 88 address_space_stl_notdirty(&address_space_memory, 89 SMP_BOOT_REG + 0x30, 0, 90 MEMTXATTRS_UNSPECIFIED, NULL); 91 case 3: 92 address_space_stl_notdirty(&address_space_memory, 93 SMP_BOOT_REG + 0x20, 0, 94 MEMTXATTRS_UNSPECIFIED, NULL); 95 case 2: 96 address_space_stl_notdirty(&address_space_memory, 97 SMP_BOOT_REG + 0x10, 0, 98 MEMTXATTRS_UNSPECIFIED, NULL); 99 env->regs[15] = SMP_BOOT_ADDR; 100 break; 101 default: 102 break; 103 } 104 } 105 106 #define NUM_REGS 0x200 107 static void hb_regs_write(void *opaque, hwaddr offset, 108 uint64_t value, unsigned size) 109 { 110 uint32_t *regs = opaque; 111 112 if (offset == 0xf00) { 113 if (value == 1 || value == 2) { 114 qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET); 115 } else if (value == 3) { 116 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN); 117 } 118 } 119 120 if (offset / 4 >= NUM_REGS) { 121 qemu_log_mask(LOG_GUEST_ERROR, 122 "highbank: bad write offset 0x%" HWADDR_PRIx "\n", offset); 123 return; 124 } 125 regs[offset / 4] = value; 126 } 127 128 static uint64_t hb_regs_read(void *opaque, hwaddr offset, 129 unsigned size) 130 { 131 uint32_t value; 132 uint32_t *regs = opaque; 133 134 if (offset / 4 >= NUM_REGS) { 135 qemu_log_mask(LOG_GUEST_ERROR, 136 "highbank: bad read offset 0x%" HWADDR_PRIx "\n", offset); 137 return 0; 138 } 139 value = regs[offset / 4]; 140 141 if ((offset == 0x100) || (offset == 0x108) || (offset == 0x10C)) { 142 value |= 0x30000000; 143 } 144 145 return value; 146 } 147 148 static const MemoryRegionOps hb_mem_ops = { 149 .read = hb_regs_read, 150 .write = hb_regs_write, 151 .endianness = DEVICE_NATIVE_ENDIAN, 152 }; 153 154 #define TYPE_HIGHBANK_REGISTERS "highbank-regs" 155 #define HIGHBANK_REGISTERS(obj) \ 156 OBJECT_CHECK(HighbankRegsState, (obj), TYPE_HIGHBANK_REGISTERS) 157 158 typedef struct { 159 /*< private >*/ 160 SysBusDevice parent_obj; 161 /*< public >*/ 162 163 MemoryRegion iomem; 164 uint32_t regs[NUM_REGS]; 165 } HighbankRegsState; 166 167 static VMStateDescription vmstate_highbank_regs = { 168 .name = "highbank-regs", 169 .version_id = 0, 170 .minimum_version_id = 0, 171 .fields = (VMStateField[]) { 172 VMSTATE_UINT32_ARRAY(regs, HighbankRegsState, NUM_REGS), 173 VMSTATE_END_OF_LIST(), 174 }, 175 }; 176 177 static void highbank_regs_reset(DeviceState *dev) 178 { 179 HighbankRegsState *s = HIGHBANK_REGISTERS(dev); 180 181 s->regs[0x40] = 0x05F20121; 182 s->regs[0x41] = 0x2; 183 s->regs[0x42] = 0x05F30121; 184 s->regs[0x43] = 0x05F40121; 185 } 186 187 static void highbank_regs_init(Object *obj) 188 { 189 HighbankRegsState *s = HIGHBANK_REGISTERS(obj); 190 SysBusDevice *dev = SYS_BUS_DEVICE(obj); 191 192 memory_region_init_io(&s->iomem, obj, &hb_mem_ops, s->regs, 193 "highbank_regs", 0x1000); 194 sysbus_init_mmio(dev, &s->iomem); 195 } 196 197 static void highbank_regs_class_init(ObjectClass *klass, void *data) 198 { 199 DeviceClass *dc = DEVICE_CLASS(klass); 200 201 dc->desc = "Calxeda Highbank registers"; 202 dc->vmsd = &vmstate_highbank_regs; 203 dc->reset = highbank_regs_reset; 204 } 205 206 static const TypeInfo highbank_regs_info = { 207 .name = TYPE_HIGHBANK_REGISTERS, 208 .parent = TYPE_SYS_BUS_DEVICE, 209 .instance_size = sizeof(HighbankRegsState), 210 .instance_init = highbank_regs_init, 211 .class_init = highbank_regs_class_init, 212 }; 213 214 static void highbank_regs_register_types(void) 215 { 216 type_register_static(&highbank_regs_info); 217 } 218 219 type_init(highbank_regs_register_types) 220 221 static struct arm_boot_info highbank_binfo; 222 223 enum cxmachines { 224 CALXEDA_HIGHBANK, 225 CALXEDA_MIDWAY, 226 }; 227 228 /* ram_size must be set to match the upper bound of memory in the 229 * device tree (linux/arch/arm/boot/dts/highbank.dts), which is 230 * normally 0xff900000 or -m 4089. When running this board on a 231 * 32-bit host, set the reg value of memory to 0xf7ff00000 in the 232 * device tree and pass -m 2047 to QEMU. 233 */ 234 static void calxeda_init(MachineState *machine, enum cxmachines machine_id) 235 { 236 ram_addr_t ram_size = machine->ram_size; 237 const char *kernel_filename = machine->kernel_filename; 238 const char *kernel_cmdline = machine->kernel_cmdline; 239 const char *initrd_filename = machine->initrd_filename; 240 DeviceState *dev = NULL; 241 SysBusDevice *busdev; 242 qemu_irq pic[128]; 243 int n; 244 qemu_irq cpu_irq[4]; 245 qemu_irq cpu_fiq[4]; 246 qemu_irq cpu_virq[4]; 247 qemu_irq cpu_vfiq[4]; 248 MemoryRegion *sysram; 249 MemoryRegion *dram; 250 MemoryRegion *sysmem; 251 char *sysboot_filename; 252 253 switch (machine_id) { 254 case CALXEDA_HIGHBANK: 255 machine->cpu_type = ARM_CPU_TYPE_NAME("cortex-a9"); 256 break; 257 case CALXEDA_MIDWAY: 258 machine->cpu_type = ARM_CPU_TYPE_NAME("cortex-a15"); 259 break; 260 default: 261 assert(0); 262 } 263 264 for (n = 0; n < smp_cpus; n++) { 265 Object *cpuobj; 266 ARMCPU *cpu; 267 268 cpuobj = object_new(machine->cpu_type); 269 cpu = ARM_CPU(cpuobj); 270 271 object_property_set_int(cpuobj, QEMU_PSCI_CONDUIT_SMC, 272 "psci-conduit", &error_abort); 273 274 if (n) { 275 /* Secondary CPUs start in PSCI powered-down state */ 276 object_property_set_bool(cpuobj, true, 277 "start-powered-off", &error_abort); 278 } 279 280 if (object_property_find(cpuobj, "reset-cbar", NULL)) { 281 object_property_set_int(cpuobj, MPCORE_PERIPHBASE, 282 "reset-cbar", &error_abort); 283 } 284 object_property_set_bool(cpuobj, true, "realized", &error_fatal); 285 cpu_irq[n] = qdev_get_gpio_in(DEVICE(cpu), ARM_CPU_IRQ); 286 cpu_fiq[n] = qdev_get_gpio_in(DEVICE(cpu), ARM_CPU_FIQ); 287 cpu_virq[n] = qdev_get_gpio_in(DEVICE(cpu), ARM_CPU_VIRQ); 288 cpu_vfiq[n] = qdev_get_gpio_in(DEVICE(cpu), ARM_CPU_VFIQ); 289 } 290 291 sysmem = get_system_memory(); 292 dram = g_new(MemoryRegion, 1); 293 memory_region_allocate_system_memory(dram, NULL, "highbank.dram", ram_size); 294 /* SDRAM at address zero. */ 295 memory_region_add_subregion(sysmem, 0, dram); 296 297 sysram = g_new(MemoryRegion, 1); 298 memory_region_init_ram(sysram, NULL, "highbank.sysram", 0x8000, 299 &error_fatal); 300 memory_region_add_subregion(sysmem, 0xfff88000, sysram); 301 if (bios_name != NULL) { 302 sysboot_filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name); 303 if (sysboot_filename != NULL) { 304 if (load_image_targphys(sysboot_filename, 0xfff88000, 0x8000) < 0) { 305 error_report("Unable to load %s", bios_name); 306 exit(1); 307 } 308 g_free(sysboot_filename); 309 } else { 310 error_report("Unable to find %s", bios_name); 311 exit(1); 312 } 313 } 314 315 switch (machine_id) { 316 case CALXEDA_HIGHBANK: 317 dev = qdev_create(NULL, "l2x0"); 318 qdev_init_nofail(dev); 319 busdev = SYS_BUS_DEVICE(dev); 320 sysbus_mmio_map(busdev, 0, 0xfff12000); 321 322 dev = qdev_create(NULL, TYPE_A9MPCORE_PRIV); 323 break; 324 case CALXEDA_MIDWAY: 325 dev = qdev_create(NULL, TYPE_A15MPCORE_PRIV); 326 break; 327 } 328 qdev_prop_set_uint32(dev, "num-cpu", smp_cpus); 329 qdev_prop_set_uint32(dev, "num-irq", NIRQ_GIC); 330 qdev_init_nofail(dev); 331 busdev = SYS_BUS_DEVICE(dev); 332 sysbus_mmio_map(busdev, 0, MPCORE_PERIPHBASE); 333 for (n = 0; n < smp_cpus; n++) { 334 sysbus_connect_irq(busdev, n, cpu_irq[n]); 335 sysbus_connect_irq(busdev, n + smp_cpus, cpu_fiq[n]); 336 sysbus_connect_irq(busdev, n + 2 * smp_cpus, cpu_virq[n]); 337 sysbus_connect_irq(busdev, n + 3 * smp_cpus, cpu_vfiq[n]); 338 } 339 340 for (n = 0; n < 128; n++) { 341 pic[n] = qdev_get_gpio_in(dev, n); 342 } 343 344 dev = qdev_create(NULL, "sp804"); 345 qdev_prop_set_uint32(dev, "freq0", 150000000); 346 qdev_prop_set_uint32(dev, "freq1", 150000000); 347 qdev_init_nofail(dev); 348 busdev = SYS_BUS_DEVICE(dev); 349 sysbus_mmio_map(busdev, 0, 0xfff34000); 350 sysbus_connect_irq(busdev, 0, pic[18]); 351 pl011_create(0xfff36000, pic[20], serial_hd(0)); 352 353 dev = qdev_create(NULL, TYPE_HIGHBANK_REGISTERS); 354 qdev_init_nofail(dev); 355 busdev = SYS_BUS_DEVICE(dev); 356 sysbus_mmio_map(busdev, 0, 0xfff3c000); 357 358 sysbus_create_simple("pl061", 0xfff30000, pic[14]); 359 sysbus_create_simple("pl061", 0xfff31000, pic[15]); 360 sysbus_create_simple("pl061", 0xfff32000, pic[16]); 361 sysbus_create_simple("pl061", 0xfff33000, pic[17]); 362 sysbus_create_simple("pl031", 0xfff35000, pic[19]); 363 sysbus_create_simple("pl022", 0xfff39000, pic[23]); 364 365 sysbus_create_simple(TYPE_SYSBUS_AHCI, 0xffe08000, pic[83]); 366 367 if (nd_table[0].used) { 368 qemu_check_nic_model(&nd_table[0], "xgmac"); 369 dev = qdev_create(NULL, "xgmac"); 370 qdev_set_nic_properties(dev, &nd_table[0]); 371 qdev_init_nofail(dev); 372 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, 0xfff50000); 373 sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, pic[77]); 374 sysbus_connect_irq(SYS_BUS_DEVICE(dev), 1, pic[78]); 375 sysbus_connect_irq(SYS_BUS_DEVICE(dev), 2, pic[79]); 376 377 qemu_check_nic_model(&nd_table[1], "xgmac"); 378 dev = qdev_create(NULL, "xgmac"); 379 qdev_set_nic_properties(dev, &nd_table[1]); 380 qdev_init_nofail(dev); 381 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, 0xfff51000); 382 sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, pic[80]); 383 sysbus_connect_irq(SYS_BUS_DEVICE(dev), 1, pic[81]); 384 sysbus_connect_irq(SYS_BUS_DEVICE(dev), 2, pic[82]); 385 } 386 387 /* TODO create and connect IDE devices for ide_drive_get() */ 388 389 highbank_binfo.ram_size = ram_size; 390 highbank_binfo.kernel_filename = kernel_filename; 391 highbank_binfo.kernel_cmdline = kernel_cmdline; 392 highbank_binfo.initrd_filename = initrd_filename; 393 /* highbank requires a dtb in order to boot, and the dtb will override 394 * the board ID. The following value is ignored, so set it to -1 to be 395 * clear that the value is meaningless. 396 */ 397 highbank_binfo.board_id = -1; 398 highbank_binfo.nb_cpus = smp_cpus; 399 highbank_binfo.loader_start = 0; 400 highbank_binfo.write_secondary_boot = hb_write_secondary; 401 highbank_binfo.secondary_cpu_reset_hook = hb_reset_secondary; 402 if (!kvm_enabled()) { 403 highbank_binfo.board_setup_addr = BOARD_SETUP_ADDR; 404 highbank_binfo.write_board_setup = hb_write_board_setup; 405 highbank_binfo.secure_board_setup = true; 406 } else { 407 warn_report("cannot load built-in Monitor support " 408 "if KVM is enabled. Some guests (such as Linux) " 409 "may not boot."); 410 } 411 412 arm_load_kernel(ARM_CPU(first_cpu), &highbank_binfo); 413 } 414 415 static void highbank_init(MachineState *machine) 416 { 417 calxeda_init(machine, CALXEDA_HIGHBANK); 418 } 419 420 static void midway_init(MachineState *machine) 421 { 422 calxeda_init(machine, CALXEDA_MIDWAY); 423 } 424 425 static void highbank_class_init(ObjectClass *oc, void *data) 426 { 427 MachineClass *mc = MACHINE_CLASS(oc); 428 429 mc->desc = "Calxeda Highbank (ECX-1000)"; 430 mc->init = highbank_init; 431 mc->block_default_type = IF_IDE; 432 mc->units_per_default_bus = 1; 433 mc->max_cpus = 4; 434 mc->ignore_memory_transaction_failures = true; 435 } 436 437 static const TypeInfo highbank_type = { 438 .name = MACHINE_TYPE_NAME("highbank"), 439 .parent = TYPE_MACHINE, 440 .class_init = highbank_class_init, 441 }; 442 443 static void midway_class_init(ObjectClass *oc, void *data) 444 { 445 MachineClass *mc = MACHINE_CLASS(oc); 446 447 mc->desc = "Calxeda Midway (ECX-2000)"; 448 mc->init = midway_init; 449 mc->block_default_type = IF_IDE; 450 mc->units_per_default_bus = 1; 451 mc->max_cpus = 4; 452 mc->ignore_memory_transaction_failures = true; 453 } 454 455 static const TypeInfo midway_type = { 456 .name = MACHINE_TYPE_NAME("midway"), 457 .parent = TYPE_MACHINE, 458 .class_init = midway_class_init, 459 }; 460 461 static void calxeda_machines_init(void) 462 { 463 type_register_static(&highbank_type); 464 type_register_static(&midway_type); 465 } 466 467 type_init(calxeda_machines_init) 468