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