void mips_r4k_init (ram_addr_t ram_size, int vga_ram_size, const char *boot_device, const char *kernel_filename, const char *kernel_cmdline, const char *initrd_filename, const char *cpu_model) { char buf[1024]; unsigned long bios_offset; int bios_size; CPUState *env; RTCState *rtc_state; int i; qemu_irq *i8259; int index; BlockDriverState *hd[MAX_IDE_BUS * MAX_IDE_DEVS]; /* init CPUs */ if (cpu_model == NULL) { #ifdef TARGET_MIPS64 cpu_model = "R4000"; #else cpu_model = "24Kf"; #endif env = cpu_init(cpu_model); if (!env) { fprintf(stderr, "Unable to find CPU definition\n"); qemu_register_reset(main_cpu_reset, env); /* allocate RAM */ cpu_register_physical_memory(0, ram_size, IO_MEM_RAM); if (!mips_qemu_iomemtype) { mips_qemu_iomemtype = cpu_register_io_memory(0, mips_qemu_read, mips_qemu_write, NULL); cpu_register_physical_memory(0x1fbf0000, 0x10000, mips_qemu_iomemtype); /* Try to load a BIOS image. If this fails, we continue regardless, but initialize the hardware ourselves. When a kernel gets preloaded we also initialize the hardware, since the BIOS wasn't run. */ 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_register_physical_memory(0x1fc00000, BIOS_SIZE, bios_offset | IO_MEM_ROM); } else if ((index = drive_get_index(IF_PFLASH, 0, 0)) > -1) { uint32_t mips_rom = 0x00400000; cpu_register_physical_memory(0x1fc00000, mips_rom, qemu_ram_alloc(mips_rom) | IO_MEM_ROM); if (!pflash_cfi01_register(0x1fc00000, qemu_ram_alloc(mips_rom), drives_table[index].bdrv, sector_len, mips_rom / sector_len, 4, 0, 0, 0, 0)) { fprintf(stderr, "qemu: Error registering flash memory.\n"); else { /* not fatal */ fprintf(stderr, "qemu: Warning, could not load MIPS bios '%s'\n", buf); if (kernel_filename) { loaderparams.ram_size = ram_size; loaderparams.kernel_filename = kernel_filename; loaderparams.kernel_cmdline = kernel_cmdline; loaderparams.initrd_filename = initrd_filename; load_kernel (env); /* Init CPU internal devices */ cpu_mips_irq_init_cpu(env); cpu_mips_clock_init(env); /* The PIC is attached to the MIPS CPU INT0 pin */ i8259 = i8259_init(env->irq[2]); rtc_state = rtc_init(0x70, i8259[8]); /* Register 64 KB of ISA IO space at 0x14000000 */ isa_mmio_init(0x14000000, 0x00010000); isa_mem_base = 0x10000000; pit = pit_init(0x40, i8259[0]); for(i = 0; i < MAX_SERIAL_PORTS; i++) { if (serial_hds[i]) { serial_init(serial_io[i], i8259[serial_irq[i]], 115200, serial_hds[i]); isa_vga_init(phys_ram_base + ram_size, ram_size, vga_ram_size); if (nd_table[0].vlan) isa_ne2000_init(0x300, i8259[9], &nd_table[0]); if (drive_get_max_bus(IF_IDE) >= MAX_IDE_BUS) { fprintf(stderr, "qemu: too many IDE bus\n"); for(i = 0; i < MAX_IDE_BUS * MAX_IDE_DEVS; i++) { index = drive_get_index(IF_IDE, i / MAX_IDE_DEVS, i % MAX_IDE_DEVS); if (index != -1) hd[i] = drives_table[index].bdrv; else hd[i] = NULL; for(i = 0; i < MAX_IDE_BUS; i++) isa_ide_init(ide_iobase[i], ide_iobase2[i], i8259[ide_irq[i]], hd[MAX_IDE_DEVS * i], hd[MAX_IDE_DEVS * i + 1]); i8042_init(i8259[1], i8259[12], 0x60);