static void mips_jazz_init(MachineState *machine, enum jazz_model_e jazz_model) { MemoryRegion *address_space = get_system_memory(); const char *cpu_model = machine->cpu_model; char *filename; int bios_size, n; MIPSCPU *cpu; CPUClass *cc; CPUMIPSState *env; qemu_irq *i8259; rc4030_dma *dmas; MemoryRegion *rc4030_dma_mr; MemoryRegion *isa_mem = g_new(MemoryRegion, 1); MemoryRegion *isa_io = g_new(MemoryRegion, 1); MemoryRegion *rtc = g_new(MemoryRegion, 1); MemoryRegion *i8042 = g_new(MemoryRegion, 1); MemoryRegion *dma_dummy = g_new(MemoryRegion, 1); NICInfo *nd; DeviceState *dev, *rc4030; SysBusDevice *sysbus; ISABus *isa_bus; ISADevice *pit; DriveInfo *fds[MAX_FD]; qemu_irq esp_reset, dma_enable; MemoryRegion *ram = g_new(MemoryRegion, 1); MemoryRegion *bios = g_new(MemoryRegion, 1); MemoryRegion *bios2 = g_new(MemoryRegion, 1); /* init CPUs */ if (cpu_model == NULL) { cpu_model = "R4000"; } cpu = cpu_mips_init(cpu_model); if (cpu == NULL) { fprintf(stderr, "Unable to find CPU definition\n"); exit(1); } env = &cpu->env; qemu_register_reset(main_cpu_reset, cpu); /* Chipset returns 0 in invalid reads and do not raise data exceptions. * However, we can't simply add a global memory region to catch * everything, as memory core directly call unassigned_mem_read/write * on some invalid accesses, which call do_unassigned_access on the * CPU, which raise an exception. * Handle that case by hijacking the do_unassigned_access method on * the CPU, and do not raise exceptions for data access. */ cc = CPU_GET_CLASS(cpu); real_do_unassigned_access = cc->do_unassigned_access; cc->do_unassigned_access = mips_jazz_do_unassigned_access; /* allocate RAM */ memory_region_allocate_system_memory(ram, NULL, "mips_jazz.ram", machine->ram_size); memory_region_add_subregion(address_space, 0, ram); memory_region_init_ram(bios, NULL, "mips_jazz.bios", MAGNUM_BIOS_SIZE, &error_abort); vmstate_register_ram_global(bios); memory_region_set_readonly(bios, true); memory_region_init_alias(bios2, NULL, "mips_jazz.bios", bios, 0, MAGNUM_BIOS_SIZE); memory_region_add_subregion(address_space, 0x1fc00000LL, bios); memory_region_add_subregion(address_space, 0xfff00000LL, bios2); /* load the BIOS image. */ if (bios_name == NULL) bios_name = BIOS_FILENAME; filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name); if (filename) { bios_size = load_image_targphys(filename, 0xfff00000LL, MAGNUM_BIOS_SIZE); g_free(filename); } else { bios_size = -1; } if ((bios_size < 0 || bios_size > MAGNUM_BIOS_SIZE) && !qtest_enabled()) { error_report("Could not load MIPS bios '%s'", bios_name); exit(1); } /* Init CPU internal devices */ cpu_mips_irq_init_cpu(env); cpu_mips_clock_init(env); /* Chipset */ rc4030 = rc4030_init(&dmas, &rc4030_dma_mr); sysbus = SYS_BUS_DEVICE(rc4030); sysbus_connect_irq(sysbus, 0, env->irq[6]); sysbus_connect_irq(sysbus, 1, env->irq[3]); memory_region_add_subregion(address_space, 0x80000000, sysbus_mmio_get_region(sysbus, 0)); memory_region_add_subregion(address_space, 0xf0000000, sysbus_mmio_get_region(sysbus, 1)); memory_region_init_io(dma_dummy, NULL, &dma_dummy_ops, NULL, "dummy_dma", 0x1000); memory_region_add_subregion(address_space, 0x8000d000, dma_dummy); /* ISA bus: IO space at 0x90000000, mem space at 0x91000000 */ memory_region_init(isa_io, NULL, "isa-io", 0x00010000); memory_region_init(isa_mem, NULL, "isa-mem", 0x01000000); memory_region_add_subregion(address_space, 0x90000000, isa_io); memory_region_add_subregion(address_space, 0x91000000, isa_mem); isa_bus = isa_bus_new(NULL, isa_mem, isa_io); /* ISA devices */ i8259 = i8259_init(isa_bus, env->irq[4]); isa_bus_irqs(isa_bus, i8259); DMA_init(0); pit = pit_init(isa_bus, 0x40, 0, NULL); pcspk_init(isa_bus, pit); /* Video card */ switch (jazz_model) { case JAZZ_MAGNUM: dev = qdev_create(NULL, "sysbus-g364"); qdev_init_nofail(dev); sysbus = SYS_BUS_DEVICE(dev); sysbus_mmio_map(sysbus, 0, 0x60080000); sysbus_mmio_map(sysbus, 1, 0x40000000); sysbus_connect_irq(sysbus, 0, qdev_get_gpio_in(rc4030, 3)); { /* Simple ROM, so user doesn't have to provide one */ MemoryRegion *rom_mr = g_new(MemoryRegion, 1); memory_region_init_ram(rom_mr, NULL, "g364fb.rom", 0x80000, &error_abort); vmstate_register_ram_global(rom_mr); memory_region_set_readonly(rom_mr, true); uint8_t *rom = memory_region_get_ram_ptr(rom_mr); memory_region_add_subregion(address_space, 0x60000000, rom_mr); rom[0] = 0x10; /* Mips G364 */ } break; case JAZZ_PICA61: isa_vga_mm_init(0x40000000, 0x60000000, 0, get_system_memory()); break; default: break; } /* Network controller */ for (n = 0; n < nb_nics; n++) { nd = &nd_table[n]; if (!nd->model) nd->model = g_strdup("dp83932"); if (strcmp(nd->model, "dp83932") == 0) { qemu_check_nic_model(nd, "dp83932"); dev = qdev_create(NULL, "dp8393x"); qdev_set_nic_properties(dev, nd); qdev_prop_set_uint8(dev, "it_shift", 2); qdev_prop_set_ptr(dev, "dma_mr", rc4030_dma_mr); qdev_init_nofail(dev); sysbus = SYS_BUS_DEVICE(dev); sysbus_mmio_map(sysbus, 0, 0x80001000); sysbus_mmio_map(sysbus, 1, 0x8000b000); sysbus_connect_irq(sysbus, 0, qdev_get_gpio_in(rc4030, 4)); break; } else if (is_help_option(nd->model)) { fprintf(stderr, "qemu: Supported NICs: dp83932\n"); exit(1); } else { fprintf(stderr, "qemu: Unsupported NIC: %s\n", nd->model); exit(1); } } /* SCSI adapter */ esp_init(0x80002000, 0, rc4030_dma_read, rc4030_dma_write, dmas[0], qdev_get_gpio_in(rc4030, 5), &esp_reset, &dma_enable); /* Floppy */ if (drive_get_max_bus(IF_FLOPPY) >= MAX_FD) { fprintf(stderr, "qemu: too many floppy drives\n"); exit(1); } for (n = 0; n < MAX_FD; n++) { fds[n] = drive_get(IF_FLOPPY, 0, n); } fdctrl_init_sysbus(qdev_get_gpio_in(rc4030, 1), 0, 0x80003000, fds); /* Real time clock */ rtc_init(isa_bus, 1980, NULL); memory_region_init_io(rtc, NULL, &rtc_ops, NULL, "rtc", 0x1000); memory_region_add_subregion(address_space, 0x80004000, rtc); /* Keyboard (i8042) */ i8042_mm_init(qdev_get_gpio_in(rc4030, 6), qdev_get_gpio_in(rc4030, 7), i8042, 0x1000, 0x1); memory_region_add_subregion(address_space, 0x80005000, i8042); /* Serial ports */ if (serial_hds[0]) { serial_mm_init(address_space, 0x80006000, 0, qdev_get_gpio_in(rc4030, 8), 8000000/16, serial_hds[0], DEVICE_NATIVE_ENDIAN); } if (serial_hds[1]) { serial_mm_init(address_space, 0x80007000, 0, qdev_get_gpio_in(rc4030, 9), 8000000/16, serial_hds[1], DEVICE_NATIVE_ENDIAN); } /* Parallel port */ if (parallel_hds[0]) parallel_mm_init(address_space, 0x80008000, 0, qdev_get_gpio_in(rc4030, 0), parallel_hds[0]); /* FIXME: missing Jazz sound at 0x8000c000, rc4030[2] */ /* NVRAM */ dev = qdev_create(NULL, "ds1225y"); qdev_init_nofail(dev); sysbus = SYS_BUS_DEVICE(dev); sysbus_mmio_map(sysbus, 0, 0x80009000); /* LED indicator */ sysbus_create_simple("jazz-led", 0x8000f000, NULL); }