PXA2xxState *pxa270_init(MemoryRegion *address_space,
                         unsigned int sdram_size, const char *revision)
{
    PXA2xxState *s;
    int i;
    DriveInfo *dinfo;
    s = (PXA2xxState *) g_malloc0(sizeof(PXA2xxState));

    if (revision && strncmp(revision, "pxa27", 5)) {
        fprintf(stderr, "Machine requires a PXA27x processor.\n");
        exit(1);
    }
    if (!revision)
        revision = "pxa270";
    
    s->cpu = cpu_arm_init(revision);
    if (s->cpu == NULL) {
        fprintf(stderr, "Unable to find CPU definition\n");
        exit(1);
    }
    s->reset = qemu_allocate_irqs(pxa2xx_reset, s, 1)[0];

    /* SDRAM & Internal Memory Storage */
    memory_region_init_ram(&s->sdram, NULL, "pxa270.sdram", sdram_size);
    vmstate_register_ram_global(&s->sdram);
    memory_region_add_subregion(address_space, PXA2XX_SDRAM_BASE, &s->sdram);
    memory_region_init_ram(&s->internal, NULL, "pxa270.internal", 0x40000);
    vmstate_register_ram_global(&s->internal);
    memory_region_add_subregion(address_space, PXA2XX_INTERNAL_BASE,
                                &s->internal);

    s->pic = pxa2xx_pic_init(0x40d00000, s->cpu);

    s->dma = pxa27x_dma_init(0x40000000,
                    qdev_get_gpio_in(s->pic, PXA2XX_PIC_DMA));

    sysbus_create_varargs("pxa27x-timer", 0x40a00000,
                    qdev_get_gpio_in(s->pic, PXA2XX_PIC_OST_0 + 0),
                    qdev_get_gpio_in(s->pic, PXA2XX_PIC_OST_0 + 1),
                    qdev_get_gpio_in(s->pic, PXA2XX_PIC_OST_0 + 2),
                    qdev_get_gpio_in(s->pic, PXA2XX_PIC_OST_0 + 3),
                    qdev_get_gpio_in(s->pic, PXA27X_PIC_OST_4_11),
                    NULL);

    s->gpio = pxa2xx_gpio_init(0x40e00000, s->cpu, s->pic, 121);

    dinfo = drive_get(IF_SD, 0, 0);
    if (!dinfo) {
        fprintf(stderr, "qemu: missing SecureDigital device\n");
        exit(1);
    }
    s->mmc = pxa2xx_mmci_init(address_space, 0x41100000, dinfo->bdrv,
                    qdev_get_gpio_in(s->pic, PXA2XX_PIC_MMC),
                    qdev_get_gpio_in(s->dma, PXA2XX_RX_RQ_MMCI),
                    qdev_get_gpio_in(s->dma, PXA2XX_TX_RQ_MMCI));

    for (i = 0; pxa270_serial[i].io_base; i++) {
        if (serial_hds[i]) {
            serial_mm_init(address_space, pxa270_serial[i].io_base, 2,
                           qdev_get_gpio_in(s->pic, pxa270_serial[i].irqn),
                           14857000 / 16, serial_hds[i],
                           DEVICE_NATIVE_ENDIAN);
        } else {
            break;
        }
    }
    if (serial_hds[i])
        s->fir = pxa2xx_fir_init(address_space, 0x40800000,
                        qdev_get_gpio_in(s->pic, PXA2XX_PIC_ICP),
                        qdev_get_gpio_in(s->dma, PXA2XX_RX_RQ_ICP),
                        qdev_get_gpio_in(s->dma, PXA2XX_TX_RQ_ICP),
                        serial_hds[i]);

    s->lcd = pxa2xx_lcdc_init(address_space, 0x44000000,
                    qdev_get_gpio_in(s->pic, PXA2XX_PIC_LCD));

    s->cm_base = 0x41300000;
    s->cm_regs[CCCR >> 2] = 0x02000210;	/* 416.0 MHz */
    s->clkcfg = 0x00000009;		/* Turbo mode active */
    memory_region_init_io(&s->cm_iomem, NULL, &pxa2xx_cm_ops, s, "pxa2xx-cm", 0x1000);
    memory_region_add_subregion(address_space, s->cm_base, &s->cm_iomem);
    vmstate_register(NULL, 0, &vmstate_pxa2xx_cm, s);

    pxa2xx_setup_cp14(s);

    s->mm_base = 0x48000000;
    s->mm_regs[MDMRS >> 2] = 0x00020002;
    s->mm_regs[MDREFR >> 2] = 0x03ca4000;
    s->mm_regs[MECR >> 2] = 0x00000001;	/* Two PC Card sockets */
    memory_region_init_io(&s->mm_iomem, NULL, &pxa2xx_mm_ops, s, "pxa2xx-mm", 0x1000);
    memory_region_add_subregion(address_space, s->mm_base, &s->mm_iomem);
    vmstate_register(NULL, 0, &vmstate_pxa2xx_mm, s);

    s->pm_base = 0x40f00000;
    memory_region_init_io(&s->pm_iomem, NULL, &pxa2xx_pm_ops, s, "pxa2xx-pm", 0x100);
    memory_region_add_subregion(address_space, s->pm_base, &s->pm_iomem);
    vmstate_register(NULL, 0, &vmstate_pxa2xx_pm, s);

    for (i = 0; pxa27x_ssp[i].io_base; i ++);
    s->ssp = (SSIBus **)g_malloc0(sizeof(SSIBus *) * i);
    for (i = 0; pxa27x_ssp[i].io_base; i ++) {
        DeviceState *dev;
        dev = sysbus_create_simple(TYPE_PXA2XX_SSP, pxa27x_ssp[i].io_base,
                        qdev_get_gpio_in(s->pic, pxa27x_ssp[i].irqn));
        s->ssp[i] = (SSIBus *)qdev_get_child_bus(dev, "ssi");
    }

    if (usb_enabled(false)) {
        sysbus_create_simple("sysbus-ohci", 0x4c000000,
                        qdev_get_gpio_in(s->pic, PXA2XX_PIC_USBH1));
    }

    s->pcmcia[0] = pxa2xx_pcmcia_init(address_space, 0x20000000);
    s->pcmcia[1] = pxa2xx_pcmcia_init(address_space, 0x30000000);

    sysbus_create_simple(TYPE_PXA2XX_RTC, 0x40900000,
                    qdev_get_gpio_in(s->pic, PXA2XX_PIC_RTCALARM));

    s->i2c[0] = pxa2xx_i2c_init(0x40301600,
                    qdev_get_gpio_in(s->pic, PXA2XX_PIC_I2C), 0xffff);
    s->i2c[1] = pxa2xx_i2c_init(0x40f00100,
                    qdev_get_gpio_in(s->pic, PXA2XX_PIC_PWRI2C), 0xff);

    s->i2s = pxa2xx_i2s_init(address_space, 0x40400000,
                    qdev_get_gpio_in(s->pic, PXA2XX_PIC_I2S),
                    qdev_get_gpio_in(s->dma, PXA2XX_RX_RQ_I2S),
                    qdev_get_gpio_in(s->dma, PXA2XX_TX_RQ_I2S));

    s->kp = pxa27x_keypad_init(address_space, 0x41500000,
                    qdev_get_gpio_in(s->pic, PXA2XX_PIC_KEYPAD));

    /* GPIO1 resets the processor */
    /* The handler can be overridden by board-specific code */
    qdev_connect_gpio_out(s->gpio, 1, s->reset);
    return s;
}