static void ppc_prep_init (ram_addr_t ram_size, const char *boot_device, const char *kernel_filename, const char *kernel_cmdline, const char *initrd_filename, const char *cpu_model) { CPUState *env = NULL; char *filename; nvram_t nvram; M48t59State *m48t59; int PPC_io_memory; int linux_boot, i, nb_nics1, bios_size; ram_addr_t ram_offset, bios_offset; uint32_t kernel_base, initrd_base; long kernel_size, initrd_size; PCIBus *pci_bus; qemu_irq *i8259; qemu_irq *cpu_exit_irq; int ppc_boot_device; DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS]; DriveInfo *fd[MAX_FD]; sysctrl = qemu_mallocz(sizeof(sysctrl_t)); linux_boot = (kernel_filename != NULL); /* init CPUs */ if (cpu_model == NULL) cpu_model = "602"; for (i = 0; i < smp_cpus; i++) { env = cpu_init(cpu_model); if (!env) { fprintf(stderr, "Unable to find PowerPC CPU definition\n"); exit(1); } if (env->flags & POWERPC_FLAG_RTC_CLK) { /* POWER / PowerPC 601 RTC clock frequency is 7.8125 MHz */ cpu_ppc_tb_init(env, 7812500UL); } else { /* Set time-base frequency to 100 Mhz */ cpu_ppc_tb_init(env, 100UL * 1000UL * 1000UL); } qemu_register_reset((QEMUResetHandler*)&cpu_reset, env); } /* allocate RAM */ ram_offset = qemu_ram_alloc(NULL, "ppc_prep.ram", ram_size); cpu_register_physical_memory(0, ram_size, ram_offset); /* allocate and load BIOS */ bios_offset = qemu_ram_alloc(NULL, "ppc_prep.bios", BIOS_SIZE); if (bios_name == NULL) bios_name = BIOS_FILENAME; filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name); if (filename) { bios_size = get_image_size(filename); } else { bios_size = -1; } if (bios_size > 0 && bios_size <= BIOS_SIZE) { target_phys_addr_t bios_addr; bios_size = (bios_size + 0xfff) & ~0xfff; bios_addr = (uint32_t)(-bios_size); cpu_register_physical_memory(bios_addr, bios_size, bios_offset | IO_MEM_ROM); bios_size = load_image_targphys(filename, bios_addr, bios_size); } if (bios_size < 0 || bios_size > BIOS_SIZE) { hw_error("qemu: could not load PPC PREP bios '%s'\n", bios_name); } if (filename) { qemu_free(filename); } if (linux_boot) { kernel_base = KERNEL_LOAD_ADDR; /* now we can load the kernel */ kernel_size = load_image_targphys(kernel_filename, kernel_base, ram_size - kernel_base); if (kernel_size < 0) { hw_error("qemu: could not load kernel '%s'\n", kernel_filename); exit(1); } /* load initrd */ if (initrd_filename) { initrd_base = INITRD_LOAD_ADDR; initrd_size = load_image_targphys(initrd_filename, initrd_base, ram_size - initrd_base); if (initrd_size < 0) { hw_error("qemu: could not load initial ram disk '%s'\n", initrd_filename); } } else { initrd_base = 0; initrd_size = 0; } ppc_boot_device = 'm'; } else { kernel_base = 0; kernel_size = 0; initrd_base = 0; initrd_size = 0; ppc_boot_device = '\0'; /* For now, OHW cannot boot from the network. */ for (i = 0; boot_device[i] != '\0'; i++) { if (boot_device[i] >= 'a' && boot_device[i] <= 'f') { ppc_boot_device = boot_device[i]; break; } } if (ppc_boot_device == '\0') { fprintf(stderr, "No valid boot device for Mac99 machine\n"); exit(1); } } isa_mem_base = 0xc0000000; if (PPC_INPUT(env) != PPC_FLAGS_INPUT_6xx) { hw_error("Only 6xx bus is supported on PREP machine\n"); } i8259 = i8259_init(first_cpu->irq_inputs[PPC6xx_INPUT_INT]); pci_bus = pci_prep_init(i8259); /* Hmm, prep has no pci-isa bridge ??? */ isa_bus_new(NULL); isa_bus_irqs(i8259); // pci_bus = i440fx_init(); /* Register 8 MB of ISA IO space (needed for non-contiguous map) */ PPC_io_memory = cpu_register_io_memory(PPC_prep_io_read, PPC_prep_io_write, sysctrl, DEVICE_LITTLE_ENDIAN); cpu_register_physical_memory(0x80000000, 0x00800000, PPC_io_memory); /* init basic PC hardware */ pci_vga_init(pci_bus); // openpic = openpic_init(0x00000000, 0xF0000000, 1); // pit = pit_init(0x40, i8259[0]); rtc_init(2000, NULL); if (serial_hds[0]) serial_isa_init(0, serial_hds[0]); nb_nics1 = nb_nics; if (nb_nics1 > NE2000_NB_MAX) nb_nics1 = NE2000_NB_MAX; for(i = 0; i < nb_nics1; i++) { if (nd_table[i].model == NULL) { nd_table[i].model = qemu_strdup("ne2k_isa"); } if (strcmp(nd_table[i].model, "ne2k_isa") == 0) { isa_ne2000_init(ne2000_io[i], ne2000_irq[i], &nd_table[i]); } else { pci_nic_init_nofail(&nd_table[i], "ne2k_pci", NULL); } } if (drive_get_max_bus(IF_IDE) >= MAX_IDE_BUS) { fprintf(stderr, "qemu: too many IDE bus\n"); exit(1); } for(i = 0; i < MAX_IDE_BUS * MAX_IDE_DEVS; i++) { hd[i] = drive_get(IF_IDE, i / MAX_IDE_DEVS, i % MAX_IDE_DEVS); } for(i = 0; i < 1/*MAX_IDE_BUS*/; i++) { isa_ide_init(ide_iobase[i], ide_iobase2[i], ide_irq[i], hd[2 * i], hd[2 * i + 1]); } isa_create_simple("i8042"); cpu_exit_irq = qemu_allocate_irqs(cpu_request_exit, NULL, 1); DMA_init(1, cpu_exit_irq); // SB16_init(); for(i = 0; i < MAX_FD; i++) { fd[i] = drive_get(IF_FLOPPY, 0, i); } fdctrl_init_isa(fd); /* Register speaker port */ register_ioport_read(0x61, 1, 1, speaker_ioport_read, NULL); register_ioport_write(0x61, 1, 1, speaker_ioport_write, NULL); /* Register fake IO ports for PREP */ sysctrl->reset_irq = first_cpu->irq_inputs[PPC6xx_INPUT_HRESET]; register_ioport_read(0x398, 2, 1, &PREP_io_read, sysctrl); register_ioport_write(0x398, 2, 1, &PREP_io_write, sysctrl); /* System control ports */ register_ioport_read(0x0092, 0x01, 1, &PREP_io_800_readb, sysctrl); register_ioport_write(0x0092, 0x01, 1, &PREP_io_800_writeb, sysctrl); register_ioport_read(0x0800, 0x52, 1, &PREP_io_800_readb, sysctrl); register_ioport_write(0x0800, 0x52, 1, &PREP_io_800_writeb, sysctrl); /* PCI intack location */ PPC_io_memory = cpu_register_io_memory(PPC_intack_read, PPC_intack_write, NULL, DEVICE_LITTLE_ENDIAN); cpu_register_physical_memory(0xBFFFFFF0, 0x4, PPC_io_memory); /* PowerPC control and status register group */ #if 0 PPC_io_memory = cpu_register_io_memory(PPC_XCSR_read, PPC_XCSR_write, NULL, DEVICE_LITTLE_ENDIAN); cpu_register_physical_memory(0xFEFF0000, 0x1000, PPC_io_memory); #endif if (usb_enabled) { usb_ohci_init_pci(pci_bus, -1); } m48t59 = m48t59_init(i8259[8], 0, 0x0074, NVRAM_SIZE, 59); if (m48t59 == NULL) return; sysctrl->nvram = m48t59; /* Initialise NVRAM */ nvram.opaque = m48t59; nvram.read_fn = &m48t59_read; nvram.write_fn = &m48t59_write; PPC_NVRAM_set_params(&nvram, NVRAM_SIZE, "PREP", ram_size, ppc_boot_device, kernel_base, kernel_size, kernel_cmdline, initrd_base, initrd_size, /* XXX: need an option to load a NVRAM image */ 0, graphic_width, graphic_height, graphic_depth); /* Special port to get debug messages from Open-Firmware */ register_ioport_write(0x0F00, 4, 1, &PPC_debug_write, NULL); }