static void ppc_prep_init (int ram_size, int vga_ram_size, const char *boot_device, DisplayState *ds, const char **fd_filename, int snapshot, const char *kernel_filename, const char *kernel_cmdline, const char *initrd_filename, const char *cpu_model) { CPUState *env, *envs[MAX_CPUS]; char buf[1024]; nvram_t nvram; m48t59_t *m48t59; int PPC_io_memory; int linux_boot, i, nb_nics1, bios_size; unsigned long bios_offset; uint32_t kernel_base, kernel_size, initrd_base, initrd_size; PCIBus *pci_bus; qemu_irq *i8259; int ppc_boot_device = boot_device[0]; sysctrl = qemu_mallocz(sizeof(sysctrl_t)); if (sysctrl == NULL) return; linux_boot = (kernel_filename != NULL); /* init CPUs */ if (cpu_model == NULL) cpu_model = "default"; 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); } /* Set time-base frequency to 100 Mhz */ cpu_ppc_tb_init(env, 100UL * 1000UL * 1000UL); qemu_register_reset(&cpu_ppc_reset, env); register_savevm("cpu", 0, 3, cpu_save, cpu_load, env); envs[i] = env; } /* allocate RAM */ cpu_register_physical_memory(0, ram_size, IO_MEM_RAM); /* allocate and load BIOS */ bios_offset = ram_size + vga_ram_size; if (bios_name == NULL) bios_name = BIOS_FILENAME; snprintf(buf, sizeof(buf), "%s/%s", bios_dir, bios_name); bios_size = load_image(buf, phys_ram_base + bios_offset); if (bios_size < 0 || bios_size > BIOS_SIZE) { cpu_abort(env, "qemu: could not load PPC PREP bios '%s'\n", buf); exit(1); } if (env->nip < 0xFFF80000 && bios_size < 0x00100000) { cpu_abort(env, "PowerPC 601 / 620 / 970 need a 1MB BIOS\n"); } bios_size = (bios_size + 0xfff) & ~0xfff; cpu_register_physical_memory((uint32_t)(-bios_size), bios_size, bios_offset | IO_MEM_ROM); if (linux_boot) { kernel_base = KERNEL_LOAD_ADDR; /* now we can load the kernel */ kernel_size = load_image(kernel_filename, phys_ram_base + kernel_base); if (kernel_size < 0) { cpu_abort(env, "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(initrd_filename, phys_ram_base + initrd_base); if (initrd_size < 0) { cpu_abort(env, "qemu: could not load initial ram disk '%s'\n", initrd_filename); exit(1); } } else { initrd_base = 0; initrd_size = 0; } ppc_boot_device = 'm'; } else { kernel_base = 0; kernel_size = 0; initrd_base = 0; initrd_size = 0; } isa_mem_base = 0xc0000000; if (PPC_INPUT(env) != PPC_FLAGS_INPUT_6xx) { cpu_abort(env, "Only 6xx bus is supported on PREP machine\n"); exit(1); } i8259 = i8259_init(first_cpu->irq_inputs[PPC6xx_INPUT_INT]); pci_bus = pci_prep_init(i8259); // pci_bus = i440fx_init(); /* Register 8 MB of ISA IO space (needed for non-contiguous map) */ PPC_io_memory = cpu_register_io_memory(0, PPC_prep_io_read, PPC_prep_io_write, sysctrl); cpu_register_physical_memory(0x80000000, 0x00800000, PPC_io_memory); /* init basic PC hardware */ pci_vga_init(pci_bus, ds, phys_ram_base + ram_size, ram_size, vga_ram_size, 0, 0); // openpic = openpic_init(0x00000000, 0xF0000000, 1); // pit = pit_init(0x40, i8259[0]); rtc_init(0x70, i8259[8]); serial_init(0x3f8, i8259[4], 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 || strcmp(nd_table[i].model, "ne2k_isa") == 0) { isa_ne2000_init(ne2000_io[i], i8259[ne2000_irq[i]], &nd_table[i]); } else { pci_nic_init(pci_bus, &nd_table[i], -1); } } for(i = 0; i < 2; i++) { isa_ide_init(ide_iobase[i], ide_iobase2[i], i8259[ide_irq[i]], bs_table[2 * i], bs_table[2 * i + 1]); } i8042_init(i8259[1], i8259[12], 0x60); DMA_init(1); // AUD_init(); // SB16_init(); fdctrl_init(i8259[6], 2, 0, 0x3f0, fd_table); /* 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(0, PPC_intack_read, PPC_intack_write, NULL); cpu_register_physical_memory(0xBFFFFFF0, 0x4, PPC_io_memory); /* PowerPC control and status register group */ #if 0 PPC_io_memory = cpu_register_io_memory(0, PPC_XCSR_read, PPC_XCSR_write, NULL); cpu_register_physical_memory(0xFEFF0000, 0x1000, PPC_io_memory); #endif if (usb_enabled) { usb_ohci_init_pci(pci_bus, 3, -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); }