Esempio n. 1
0
static void virtex_init(QEMUMachineInitArgs *args)
{
    ram_addr_t ram_size = args->ram_size;
    const char *cpu_model = args->cpu_model;
    const char *kernel_filename = args->kernel_filename;
    const char *kernel_cmdline = args->kernel_cmdline;
    MemoryRegion *address_space_mem = get_system_memory();
    DeviceState *dev;
    PowerPCCPU *cpu;
    CPUPPCState *env;
    hwaddr ram_base = 0;
    DriveInfo *dinfo;
    MemoryRegion *phys_ram = g_new(MemoryRegion, 1);
    qemu_irq irq[32], *cpu_irq;
    int kernel_size;
    int i;

    /* init CPUs */
    if (cpu_model == NULL) {
        cpu_model = "440-Xilinx";
    }

    cpu = ppc440_init_xilinx(&ram_size, 1, cpu_model, 400000000);
    env = &cpu->env;
    qemu_register_reset(main_cpu_reset, cpu);

    memory_region_init_ram(phys_ram, "ram", ram_size);
    vmstate_register_ram_global(phys_ram);
    memory_region_add_subregion(address_space_mem, ram_base, phys_ram);

    dinfo = drive_get(IF_PFLASH, 0, 0);
    pflash_cfi01_register(0xfc000000, NULL, "virtex.flash", FLASH_SIZE,
                          dinfo ? dinfo->bdrv : NULL, (64 * 1024),
                          FLASH_SIZE >> 16,
                          1, 0x89, 0x18, 0x0000, 0x0, 1);

    cpu_irq = (qemu_irq *) &env->irq_inputs[PPC40x_INPUT_INT];
    dev = xilinx_intc_create(0x81800000, cpu_irq[0], 0);
    for (i = 0; i < 32; i++) {
        irq[i] = qdev_get_gpio_in(dev, i);
    }

    serial_mm_init(address_space_mem, 0x83e01003ULL, 2, irq[9], 115200,
                   serial_hds[0], DEVICE_LITTLE_ENDIAN);

    /* 2 timers at irq 2 @ 62 Mhz.  */
    xilinx_timer_create(0x83c00000, irq[3], 0, 62 * 1000000);

    if (kernel_filename) {
        uint64_t entry, low, high;
        hwaddr boot_offset;

        /* Boots a kernel elf binary.  */
        kernel_size = load_elf(kernel_filename, NULL, NULL,
                               &entry, &low, &high, 1, ELF_MACHINE, 0);
        boot_info.bootstrap_pc = entry & 0x00ffffff;

        if (kernel_size < 0) {
            boot_offset = 0x1200000;
            /* If we failed loading ELF's try a raw image.  */
            kernel_size = load_image_targphys(kernel_filename,
                                              boot_offset,
                                              ram_size);
            boot_info.bootstrap_pc = boot_offset;
            high = boot_info.bootstrap_pc + kernel_size + 8192;
        }

        boot_info.ima_size = kernel_size;

        /* Provide a device-tree.  */
        boot_info.fdt = high + (8192 * 2);
        boot_info.fdt &= ~8191;
        xilinx_load_device_tree(boot_info.fdt, ram_size, 0, 0, kernel_cmdline);
    }
    env->load_info = &boot_info;
}
Esempio n. 2
0
static void virtex_init(MachineState *machine)
{
    ram_addr_t ram_size = machine->ram_size;
    const char *kernel_filename = machine->kernel_filename;
    const char *kernel_cmdline = machine->kernel_cmdline;
    hwaddr initrd_base = 0;
    int initrd_size = 0;
    MemoryRegion *address_space_mem = get_system_memory();
    DeviceState *dev;
    PowerPCCPU *cpu;
    CPUPPCState *env;
    hwaddr ram_base = 0;
    DriveInfo *dinfo;
    MemoryRegion *phys_ram = g_new(MemoryRegion, 1);
    qemu_irq irq[32], *cpu_irq;
    int kernel_size;
    int i;

    /* init CPUs */
    if (machine->cpu_model == NULL) {
        machine->cpu_model = "440-Xilinx";
    }

    cpu = ppc440_init_xilinx(&ram_size, 1, machine->cpu_model, 400000000);
    env = &cpu->env;
    qemu_register_reset(main_cpu_reset, cpu);

    memory_region_allocate_system_memory(phys_ram, NULL, "ram", ram_size);
    memory_region_add_subregion(address_space_mem, ram_base, phys_ram);

    dinfo = drive_get(IF_PFLASH, 0, 0);
    pflash_cfi01_register(PFLASH_BASEADDR, NULL, "virtex.flash", FLASH_SIZE,
                          dinfo ? blk_by_legacy_dinfo(dinfo) : NULL,
                          (64 * 1024), FLASH_SIZE >> 16,
                          1, 0x89, 0x18, 0x0000, 0x0, 1);

    cpu_irq = (qemu_irq *) &env->irq_inputs[PPC40x_INPUT_INT];
    dev = qdev_create(NULL, "xlnx.xps-intc");
    qdev_prop_set_uint32(dev, "kind-of-intr", 0);
    qdev_init_nofail(dev);
    sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, INTC_BASEADDR);
    sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, cpu_irq[0]);
    for (i = 0; i < 32; i++) {
        irq[i] = qdev_get_gpio_in(dev, i);
    }

    serial_mm_init(address_space_mem, UART16550_BASEADDR, 2, irq[UART16550_IRQ],
                   115200, serial_hds[0], DEVICE_LITTLE_ENDIAN);

    /* 2 timers at irq 2 @ 62 Mhz.  */
    dev = qdev_create(NULL, "xlnx.xps-timer");
    qdev_prop_set_uint32(dev, "one-timer-only", 0);
    qdev_prop_set_uint32(dev, "clock-frequency", 62 * 1000000);
    qdev_init_nofail(dev);
    sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, TIMER_BASEADDR);
    sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, irq[TIMER_IRQ]);

    if (kernel_filename) {
        uint64_t entry, low, high;
        hwaddr boot_offset;

        /* Boots a kernel elf binary.  */
        kernel_size = load_elf(kernel_filename, NULL, NULL,
                               &entry, &low, &high, 1, PPC_ELF_MACHINE, 0);
        boot_info.bootstrap_pc = entry & 0x00ffffff;

        if (kernel_size < 0) {
            boot_offset = 0x1200000;
            /* If we failed loading ELF's try a raw image.  */
            kernel_size = load_image_targphys(kernel_filename,
                                              boot_offset,
                                              ram_size);
            boot_info.bootstrap_pc = boot_offset;
            high = boot_info.bootstrap_pc + kernel_size + 8192;
        }

        boot_info.ima_size = kernel_size;

        /* Load initrd. */
        if (machine->initrd_filename) {
            initrd_base = high = ROUND_UP(high, 4);
            initrd_size = load_image_targphys(machine->initrd_filename,
                                              high, ram_size - high);

            if (initrd_size < 0) {
                error_report("couldn't load ram disk '%s'",
                             machine->initrd_filename);
                exit(1);
            }
            high = ROUND_UP(high + initrd_size, 4);
        }

        /* Provide a device-tree.  */
        boot_info.fdt = high + (8192 * 2);
        boot_info.fdt &= ~8191;

        xilinx_load_device_tree(boot_info.fdt, ram_size,
                                initrd_base, initrd_size,
                                kernel_cmdline);
    }
    env->load_info = &boot_info;
}