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