Archipelago » qemu

/*

 * Nokia N-series internet tablets.

 *

 * Copyright (C) 2007 Nokia Corporation

 * Written by Andrzej Zaborowski <andrew@openedhand.com>

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License as

 * published by the Free Software Foundation; either version 2 or

 * (at your option) version 3 of the License.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License along

 * with this program; if not, see <http://www.gnu.org/licenses/>.

 */

#include "qemu-common.h"

#include "sysemu.h"

#include "omap.h"

#include "arm-misc.h"

#include "irq.h"

#include "console.h"

#include "boards.h"

#include "i2c.h"

#include "devices.h"

#include "flash.h"

#include "hw.h"

#include "bt.h"

#include "loader.h"

#include "blockdev.h"

/* Nokia N8x0 support */

struct n800_s {

    struct omap_mpu_state_s *cpu;

    struct rfbi_chip_s blizzard;

    struct {

        void *opaque;

        uint32_t (*txrx)(void *opaque, uint32_t value, int len);

        uWireSlave *chip;

    } ts;

    i2c_bus *i2c;

    int keymap[0x80];

    DeviceState *kbd;

    TUSBState *usb;

    void *retu;

    void *tahvo;

    void *nand;

};

/* GPIO pins */

#define N8X0_TUSB_ENABLE_GPIO                0

#define N800_MMC2_WP_GPIO                8

#define N800_UNKNOWN_GPIO0                9        /* out */

#define N810_MMC2_VIOSD_GPIO                9

#define N810_HEADSET_AMP_GPIO                10

#define N800_CAM_TURN_GPIO                12

#define N810_GPS_RESET_GPIO                12

#define N800_BLIZZARD_POWERDOWN_GPIO        15

#define N800_MMC1_WP_GPIO                23

#define N810_MMC2_VSD_GPIO                23

#define N8X0_ONENAND_GPIO                26

#define N810_BLIZZARD_RESET_GPIO        30

#define N800_UNKNOWN_GPIO2                53        /* out */

#define N8X0_TUSB_INT_GPIO                58

#define N8X0_BT_WKUP_GPIO                61

#define N8X0_STI_GPIO                        62

#define N8X0_CBUS_SEL_GPIO                64

#define N8X0_CBUS_DAT_GPIO                65

#define N8X0_CBUS_CLK_GPIO                66

#define N8X0_WLAN_IRQ_GPIO                87

#define N8X0_BT_RESET_GPIO                92

#define N8X0_TEA5761_CS_GPIO                93

#define N800_UNKNOWN_GPIO                94

#define N810_TSC_RESET_GPIO                94

#define N800_CAM_ACT_GPIO                95

#define N810_GPS_WAKEUP_GPIO                95

#define N8X0_MMC_CS_GPIO                96

#define N8X0_WLAN_PWR_GPIO                97

#define N8X0_BT_HOST_WKUP_GPIO                98

#define N810_SPEAKER_AMP_GPIO                101

#define N810_KB_LOCK_GPIO                102

#define N800_TSC_TS_GPIO                103

#define N810_TSC_TS_GPIO                106

#define N8X0_HEADPHONE_GPIO                107

#define N8X0_RETU_GPIO                        108

#define N800_TSC_KP_IRQ_GPIO                109

#define N810_KEYBOARD_GPIO                109

#define N800_BAT_COVER_GPIO                110

#define N810_SLIDE_GPIO                        110

#define N8X0_TAHVO_GPIO                        111

#define N800_UNKNOWN_GPIO4                112        /* out */

#define N810_SLEEPX_LED_GPIO                112

#define N800_TSC_RESET_GPIO                118        /* ? */

#define N810_AIC33_RESET_GPIO                118

#define N800_TSC_UNKNOWN_GPIO                119        /* out */

#define N8X0_TMP105_GPIO                125

/* Config */

#define BT_UART                                0

#define XLDR_LL_UART                        1

/* Addresses on the I2C bus 0 */

#define N810_TLV320AIC33_ADDR                0x18        /* Audio CODEC */

#define N8X0_TCM825x_ADDR                0x29        /* Camera */

#define N810_LP5521_ADDR                0x32        /* LEDs */

#define N810_TSL2563_ADDR                0x3d        /* Light sensor */

#define N810_LM8323_ADDR                0x45        /* Keyboard */

/* Addresses on the I2C bus 1 */

#define N8X0_TMP105_ADDR                0x48        /* Temperature sensor */

#define N8X0_MENELAUS_ADDR                0x72        /* Power management */

/* Chipselects on GPMC NOR interface */

#define N8X0_ONENAND_CS                        0

#define N8X0_USB_ASYNC_CS                1

#define N8X0_USB_SYNC_CS                4

#define N8X0_BD_ADDR                        0x00, 0x1a, 0x89, 0x9e, 0x3e, 0x81

static void n800_mmc_cs_cb(void *opaque, int line, int level)

{

    /* TODO: this seems to actually be connected to the menelaus, to

     * which also both MMC slots connect.  */

    omap_mmc_enable((struct omap_mmc_s *) opaque, !level);

    printf("%s: MMC slot %i active\n", __FUNCTION__, level + 1);

}

static void n8x0_gpio_setup(struct n800_s *s)

{

    qemu_irq *mmc_cs = qemu_allocate_irqs(n800_mmc_cs_cb, s->cpu->mmc, 1);

    qdev_connect_gpio_out(s->cpu->gpio, N8X0_MMC_CS_GPIO, mmc_cs[0]);

    qemu_irq_lower(qdev_get_gpio_in(s->cpu->gpio, N800_BAT_COVER_GPIO));

}

#define MAEMO_CAL_HEADER(...)                                \

    'C',  'o',  'n',  'F',  0x02, 0x00, 0x04, 0x00,        \

    __VA_ARGS__,                                        \

    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,

static const uint8_t n8x0_cal_wlan_mac[] = {

    MAEMO_CAL_HEADER('w', 'l', 'a', 'n', '-', 'm', 'a', 'c')

    0x1c, 0x00, 0x00, 0x00, 0x47, 0xd6, 0x69, 0xb3,

    0x30, 0x08, 0xa0, 0x83, 0x00, 0x00, 0x00, 0x00,

    0x00, 0x00, 0x00, 0x00, 0x1a, 0x00, 0x00, 0x00,

    0x89, 0x00, 0x00, 0x00, 0x9e, 0x00, 0x00, 0x00,

    0x5d, 0x00, 0x00, 0x00, 0xc1, 0x00, 0x00, 0x00,

};

static const uint8_t n8x0_cal_bt_id[] = {

    MAEMO_CAL_HEADER('b', 't', '-', 'i', 'd', 0, 0, 0)

    0x0a, 0x00, 0x00, 0x00, 0xa3, 0x4b, 0xf6, 0x96,

    0xa8, 0xeb, 0xb2, 0x41, 0x00, 0x00, 0x00, 0x00,

    N8X0_BD_ADDR,

};

static void n8x0_nand_setup(struct n800_s *s)

{

    char *otp_region;

    DriveInfo *dinfo;

    dinfo = drive_get(IF_MTD, 0, 0);

    /* Either 0x40 or 0x48 are OK for the device ID */

    s->nand = onenand_init(dinfo ? dinfo->bdrv : 0,

                    NAND_MFR_SAMSUNG, 0x48, 0, 1,

                    qdev_get_gpio_in(s->cpu->gpio, N8X0_ONENAND_GPIO));

    omap_gpmc_attach(s->cpu->gpmc, N8X0_ONENAND_CS, 0, onenand_base_update,

                    onenand_base_unmap, s->nand);

    otp_region = onenand_raw_otp(s->nand);

    memcpy(otp_region + 0x000, n8x0_cal_wlan_mac, sizeof(n8x0_cal_wlan_mac));

    memcpy(otp_region + 0x800, n8x0_cal_bt_id, sizeof(n8x0_cal_bt_id));

    /* XXX: in theory should also update the OOB for both pages */

}

static void n8x0_i2c_setup(struct n800_s *s)

{

    DeviceState *dev;

    qemu_irq tmp_irq = qdev_get_gpio_in(s->cpu->gpio, N8X0_TMP105_GPIO);

    /* Attach the CPU on one end of our I2C bus.  */

    s->i2c = omap_i2c_bus(s->cpu->i2c[0]);

    /* Attach a menelaus PM chip */

    dev = i2c_create_slave(s->i2c, "twl92230", N8X0_MENELAUS_ADDR);

    qdev_connect_gpio_out(dev, 3, s->cpu->irq[0][OMAP_INT_24XX_SYS_NIRQ]);

    /* Attach a TMP105 PM chip (A0 wired to ground) */

    dev = i2c_create_slave(s->i2c, "tmp105", N8X0_TMP105_ADDR);

    qdev_connect_gpio_out(dev, 0, tmp_irq);

}

/* Touchscreen and keypad controller */

static MouseTransformInfo n800_pointercal = {

    .x = 800,

    .y = 480,

    .a = { 14560, -68, -3455208, -39, -9621, 35152972, 65536 },

};

static MouseTransformInfo n810_pointercal = {

    .x = 800,

    .y = 480,

    .a = { 15041, 148, -4731056, 171, -10238, 35933380, 65536 },

};

#define RETU_KEYCODE        61        /* F3 */

static void n800_key_event(void *opaque, int keycode)

{

    struct n800_s *s = (struct n800_s *) opaque;

    int code = s->keymap[keycode & 0x7f];

    if (code == -1) {

        if ((keycode & 0x7f) == RETU_KEYCODE)

            retu_key_event(s->retu, !(keycode & 0x80));

        return;

    }

    tsc210x_key_event(s->ts.chip, code, !(keycode & 0x80));

}

static const int n800_keys[16] = {

    -1,

    72,        /* Up */

    63,        /* Home (F5) */

    -1,

    75,        /* Left */

    28,        /* Enter */

    77,        /* Right */

    -1,

     1,        /* Cycle (ESC) */

    80,        /* Down */

    62,        /* Menu (F4) */

    -1,

    66,        /* Zoom- (F8) */

    64,        /* FullScreen (F6) */

    65,        /* Zoom+ (F7) */

    -1,

};

static void n800_tsc_kbd_setup(struct n800_s *s)

{

    int i;

    /* XXX: are the three pins inverted inside the chip between the

     * tsc and the cpu (N4111)?  */

    qemu_irq penirq = NULL;        /* NC */

    qemu_irq kbirq = qdev_get_gpio_in(s->cpu->gpio, N800_TSC_KP_IRQ_GPIO);

    qemu_irq dav = qdev_get_gpio_in(s->cpu->gpio, N800_TSC_TS_GPIO);

    s->ts.chip = tsc2301_init(penirq, kbirq, dav);

    s->ts.opaque = s->ts.chip->opaque;

    s->ts.txrx = tsc210x_txrx;

    for (i = 0; i < 0x80; i ++)

        s->keymap[i] = -1;

    for (i = 0; i < 0x10; i ++)

        if (n800_keys[i] >= 0)

            s->keymap[n800_keys[i]] = i;

    qemu_add_kbd_event_handler(n800_key_event, s);

    tsc210x_set_transform(s->ts.chip, &n800_pointercal);

}

static void n810_tsc_setup(struct n800_s *s)

{

    qemu_irq pintdav = qdev_get_gpio_in(s->cpu->gpio, N810_TSC_TS_GPIO);

    s->ts.opaque = tsc2005_init(pintdav);

    s->ts.txrx = tsc2005_txrx;

    tsc2005_set_transform(s->ts.opaque, &n810_pointercal);

}

/* N810 Keyboard controller */

static void n810_key_event(void *opaque, int keycode)

{

    struct n800_s *s = (struct n800_s *) opaque;

    int code = s->keymap[keycode & 0x7f];

    if (code == -1) {

        if ((keycode & 0x7f) == RETU_KEYCODE)

            retu_key_event(s->retu, !(keycode & 0x80));

        return;

    }

    lm832x_key_event(s->kbd, code, !(keycode & 0x80));

}

#define M        0

static int n810_keys[0x80] = {

    [0x01] = 16,        /* Q */

    [0x02] = 37,        /* K */

    [0x03] = 24,        /* O */

    [0x04] = 25,        /* P */

    [0x05] = 14,        /* Backspace */

    [0x06] = 30,        /* A */

    [0x07] = 31,        /* S */

    [0x08] = 32,        /* D */

    [0x09] = 33,        /* F */

    [0x0a] = 34,        /* G */

    [0x0b] = 35,        /* H */

    [0x0c] = 36,        /* J */

    [0x11] = 17,        /* W */

    [0x12] = 62,        /* Menu (F4) */

    [0x13] = 38,        /* L */

    [0x14] = 40,        /* ' (Apostrophe) */

    [0x16] = 44,        /* Z */

    [0x17] = 45,        /* X */

    [0x18] = 46,        /* C */

    [0x19] = 47,        /* V */

    [0x1a] = 48,        /* B */

    [0x1b] = 49,        /* N */

    [0x1c] = 42,        /* Shift (Left shift) */

    [0x1f] = 65,        /* Zoom+ (F7) */

    [0x21] = 18,        /* E */

    [0x22] = 39,        /* ; (Semicolon) */

    [0x23] = 12,        /* - (Minus) */

    [0x24] = 13,        /* = (Equal) */

    [0x2b] = 56,        /* Fn (Left Alt) */

    [0x2c] = 50,        /* M */

    [0x2f] = 66,        /* Zoom- (F8) */

    [0x31] = 19,        /* R */

    [0x32] = 29 | M,        /* Right Ctrl */

    [0x34] = 57,        /* Space */

    [0x35] = 51,        /* , (Comma) */

    [0x37] = 72 | M,        /* Up */

    [0x3c] = 82 | M,        /* Compose (Insert) */

    [0x3f] = 64,        /* FullScreen (F6) */

    [0x41] = 20,        /* T */

    [0x44] = 52,        /* . (Dot) */

    [0x46] = 77 | M,        /* Right */

    [0x4f] = 63,        /* Home (F5) */

    [0x51] = 21,        /* Y */

    [0x53] = 80 | M,        /* Down */

    [0x55] = 28,        /* Enter */

    [0x5f] =  1,        /* Cycle (ESC) */

    [0x61] = 22,        /* U */

    [0x64] = 75 | M,        /* Left */

    [0x71] = 23,        /* I */

#if 0

    [0x75] = 28 | M,        /* KP Enter (KP Enter) */

#else

    [0x75] = 15,        /* KP Enter (Tab) */

#endif

};

#undef M

static void n810_kbd_setup(struct n800_s *s)

{

    qemu_irq kbd_irq = qdev_get_gpio_in(s->cpu->gpio, N810_KEYBOARD_GPIO);

    int i;

    for (i = 0; i < 0x80; i ++)

        s->keymap[i] = -1;

    for (i = 0; i < 0x80; i ++)

        if (n810_keys[i] > 0)

            s->keymap[n810_keys[i]] = i;

    qemu_add_kbd_event_handler(n810_key_event, s);

    /* Attach the LM8322 keyboard to the I2C bus,

     * should happen in n8x0_i2c_setup and s->kbd be initialised here.  */

    s->kbd = i2c_create_slave(s->i2c, "lm8323", N810_LM8323_ADDR);

    qdev_connect_gpio_out(s->kbd, 0, kbd_irq);

}

/* LCD MIPI DBI-C controller (URAL) */

struct mipid_s {

    int resp[4];

    int param[4];

    int p;

    int pm;

    int cmd;

    int sleep;

    int booster;

    int te;

    int selfcheck;

    int partial;

    int normal;

    int vscr;

    int invert;

    int onoff;

    int gamma;

    uint32_t id;

};

static void mipid_reset(struct mipid_s *s)

{

    if (!s->sleep)

        fprintf(stderr, "%s: Display off\n", __FUNCTION__);

    s->pm = 0;

    s->cmd = 0;

    s->sleep = 1;

    s->booster = 0;

    s->selfcheck =

            (1 << 7) |        /* Register loading OK.  */

            (1 << 5) |        /* The chip is attached.  */

            (1 << 4);        /* Display glass still in one piece.  */

    s->te = 0;

    s->partial = 0;

    s->normal = 1;

    s->vscr = 0;

    s->invert = 0;

    s->onoff = 1;

    s->gamma = 0;

}

static uint32_t mipid_txrx(void *opaque, uint32_t cmd, int len)

{

    struct mipid_s *s = (struct mipid_s *) opaque;

    uint8_t ret;

    if (len > 9)

        hw_error("%s: FIXME: bad SPI word width %i\n", __FUNCTION__, len);

    if (s->p >= ARRAY_SIZE(s->resp))

        ret = 0;

    else

        ret = s->resp[s->p ++];

    if (s->pm --> 0)

        s->param[s->pm] = cmd;

    else

        s->cmd = cmd;

    switch (s->cmd) {

    case 0x00:        /* NOP */

        break;

    case 0x01:        /* SWRESET */

        mipid_reset(s);

        break;

    case 0x02:        /* BSTROFF */

        s->booster = 0;

        break;

    case 0x03:        /* BSTRON */

        s->booster = 1;

        break;

    case 0x04:        /* RDDID */

        s->p = 0;

        s->resp[0] = (s->id >> 16) & 0xff;

        s->resp[1] = (s->id >>  8) & 0xff;

        s->resp[2] = (s->id >>  0) & 0xff;

        break;

    case 0x06:        /* RD_RED */

    case 0x07:        /* RD_GREEN */

        /* XXX the bootloader sometimes issues RD_BLUE meaning RDDID so

         * for the bootloader one needs to change this.  */

    case 0x08:        /* RD_BLUE */

        s->p = 0;

        /* TODO: return first pixel components */

        s->resp[0] = 0x01;

        break;

    case 0x09:        /* RDDST */

        s->p = 0;

        s->resp[0] = s->booster << 7;

        s->resp[1] = (5 << 4) | (s->partial << 2) |

                (s->sleep << 1) | s->normal;

        s->resp[2] = (s->vscr << 7) | (s->invert << 5) |

                (s->onoff << 2) | (s->te << 1) | (s->gamma >> 2);

        s->resp[3] = s->gamma << 6;

        break;

    case 0x0a:        /* RDDPM */

        s->p = 0;

        s->resp[0] = (s->onoff << 2) | (s->normal << 3) | (s->sleep << 4) |

                (s->partial << 5) | (s->sleep << 6) | (s->booster << 7);

        break;

    case 0x0b:        /* RDDMADCTR */

        s->p = 0;

        s->resp[0] = 0;

        break;

    case 0x0c:        /* RDDCOLMOD */

        s->p = 0;

        s->resp[0] = 5;        /* 65K colours */

        break;

    case 0x0d:        /* RDDIM */

        s->p = 0;

        s->resp[0] = (s->invert << 5) | (s->vscr << 7) | s->gamma;

        break;

    case 0x0e:        /* RDDSM */

        s->p = 0;

        s->resp[0] = s->te << 7;

        break;

    case 0x0f:        /* RDDSDR */

        s->p = 0;

        s->resp[0] = s->selfcheck;

        break;

    case 0x10:        /* SLPIN */

        s->sleep = 1;

        break;

    case 0x11:        /* SLPOUT */

        s->sleep = 0;

        s->selfcheck ^= 1 << 6;        /* POFF self-diagnosis Ok */

        break;

    case 0x12:        /* PTLON */

        s->partial = 1;

        s->normal = 0;

        s->vscr = 0;

        break;

    case 0x13:        /* NORON */

        s->partial = 0;

        s->normal = 1;

        s->vscr = 0;

        break;

    case 0x20:        /* INVOFF */

        s->invert = 0;

        break;

    case 0x21:        /* INVON */

        s->invert = 1;

        break;

    case 0x22:        /* APOFF */

    case 0x23:        /* APON */

        goto bad_cmd;

    case 0x25:        /* WRCNTR */

        if (s->pm < 0)

            s->pm = 1;

        goto bad_cmd;

    case 0x26:        /* GAMSET */

        if (!s->pm)

            s->gamma = ffs(s->param[0] & 0xf) - 1;

        else if (s->pm < 0)

            s->pm = 1;

        break;

    case 0x28:        /* DISPOFF */

        s->onoff = 0;

        fprintf(stderr, "%s: Display off\n", __FUNCTION__);

        break;

    case 0x29:        /* DISPON */

        s->onoff = 1;

        fprintf(stderr, "%s: Display on\n", __FUNCTION__);

        break;

    case 0x2a:        /* CASET */

    case 0x2b:        /* RASET */

    case 0x2c:        /* RAMWR */

    case 0x2d:        /* RGBSET */

    case 0x2e:        /* RAMRD */

    case 0x30:        /* PTLAR */

    case 0x33:        /* SCRLAR */

        goto bad_cmd;

    case 0x34:        /* TEOFF */

        s->te = 0;

        break;

    case 0x35:        /* TEON */

        if (!s->pm)

            s->te = 1;

        else if (s->pm < 0)

            s->pm = 1;

        break;

    case 0x36:        /* MADCTR */

        goto bad_cmd;

    case 0x37:        /* VSCSAD */

        s->partial = 0;

        s->normal = 0;

        s->vscr = 1;

        break;

    case 0x38:        /* IDMOFF */

    case 0x39:        /* IDMON */

    case 0x3a:        /* COLMOD */

        goto bad_cmd;

    case 0xb0:        /* CLKINT / DISCTL */

    case 0xb1:        /* CLKEXT */

        if (s->pm < 0)

            s->pm = 2;

        break;

    case 0xb4:        /* FRMSEL */

        break;

    case 0xb5:        /* FRM8SEL */

    case 0xb6:        /* TMPRNG / INIESC */

    case 0xb7:        /* TMPHIS / NOP2 */

    case 0xb8:        /* TMPREAD / MADCTL */

    case 0xba:        /* DISTCTR */

    case 0xbb:        /* EPVOL */

        goto bad_cmd;

    case 0xbd:        /* Unknown */

        s->p = 0;

        s->resp[0] = 0;

        s->resp[1] = 1;

        break;

    case 0xc2:        /* IFMOD */

        if (s->pm < 0)

            s->pm = 2;

        break;

    case 0xc6:        /* PWRCTL */

    case 0xc7:        /* PPWRCTL */

    case 0xd0:        /* EPWROUT */

    case 0xd1:        /* EPWRIN */

    case 0xd4:        /* RDEV */

    case 0xd5:        /* RDRR */

        goto bad_cmd;

    case 0xda:        /* RDID1 */

        s->p = 0;

        s->resp[0] = (s->id >> 16) & 0xff;

        break;

    case 0xdb:        /* RDID2 */

        s->p = 0;

        s->resp[0] = (s->id >>  8) & 0xff;

        break;

    case 0xdc:        /* RDID3 */

        s->p = 0;

        s->resp[0] = (s->id >>  0) & 0xff;

        break;

    default:

    bad_cmd:

        fprintf(stderr, "%s: unknown command %02x\n", __FUNCTION__, s->cmd);

        break;

    }

    return ret;

}

static void *mipid_init(void)

{

    struct mipid_s *s = (struct mipid_s *) g_malloc0(sizeof(*s));

    s->id = 0x838f03;

    mipid_reset(s);

    return s;

}

static void n8x0_spi_setup(struct n800_s *s)

{

    void *tsc = s->ts.opaque;

    void *mipid = mipid_init();

    omap_mcspi_attach(s->cpu->mcspi[0], s->ts.txrx, tsc, 0);

    omap_mcspi_attach(s->cpu->mcspi[0], mipid_txrx, mipid, 1);

}

/* This task is normally performed by the bootloader.  If we're loading

 * a kernel directly, we need to enable the Blizzard ourselves.  */

static void n800_dss_init(struct rfbi_chip_s *chip)

{

    uint8_t *fb_blank;

    chip->write(chip->opaque, 0, 0x2a);                /* LCD Width register */

    chip->write(chip->opaque, 1, 0x64);

    chip->write(chip->opaque, 0, 0x2c);                /* LCD HNDP register */

    chip->write(chip->opaque, 1, 0x1e);

    chip->write(chip->opaque, 0, 0x2e);                /* LCD Height 0 register */

    chip->write(chip->opaque, 1, 0xe0);

    chip->write(chip->opaque, 0, 0x30);                /* LCD Height 1 register */

    chip->write(chip->opaque, 1, 0x01);

    chip->write(chip->opaque, 0, 0x32);                /* LCD VNDP register */

    chip->write(chip->opaque, 1, 0x06);

    chip->write(chip->opaque, 0, 0x68);                /* Display Mode register */

    chip->write(chip->opaque, 1, 1);                /* Enable bit */

    chip->write(chip->opaque, 0, 0x6c);        

    chip->write(chip->opaque, 1, 0x00);                /* Input X Start Position */

    chip->write(chip->opaque, 1, 0x00);                /* Input X Start Position */

    chip->write(chip->opaque, 1, 0x00);                /* Input Y Start Position */

    chip->write(chip->opaque, 1, 0x00);                /* Input Y Start Position */

    chip->write(chip->opaque, 1, 0x1f);                /* Input X End Position */

    chip->write(chip->opaque, 1, 0x03);                /* Input X End Position */

    chip->write(chip->opaque, 1, 0xdf);                /* Input Y End Position */

    chip->write(chip->opaque, 1, 0x01);                /* Input Y End Position */

    chip->write(chip->opaque, 1, 0x00);                /* Output X Start Position */

    chip->write(chip->opaque, 1, 0x00);                /* Output X Start Position */

    chip->write(chip->opaque, 1, 0x00);                /* Output Y Start Position */

    chip->write(chip->opaque, 1, 0x00);                /* Output Y Start Position */

    chip->write(chip->opaque, 1, 0x1f);                /* Output X End Position */

    chip->write(chip->opaque, 1, 0x03);                /* Output X End Position */

    chip->write(chip->opaque, 1, 0xdf);                /* Output Y End Position */

    chip->write(chip->opaque, 1, 0x01);                /* Output Y End Position */

    chip->write(chip->opaque, 1, 0x01);                /* Input Data Format */

    chip->write(chip->opaque, 1, 0x01);                /* Data Source Select */

    fb_blank = memset(g_malloc(800 * 480 * 2), 0xff, 800 * 480 * 2);

    /* Display Memory Data Port */

    chip->block(chip->opaque, 1, fb_blank, 800 * 480 * 2, 800);

    g_free(fb_blank);

}

static void n8x0_dss_setup(struct n800_s *s)

{

    s->blizzard.opaque = s1d13745_init(NULL);

    s->blizzard.block = s1d13745_write_block;

    s->blizzard.write = s1d13745_write;

    s->blizzard.read = s1d13745_read;

    omap_rfbi_attach(s->cpu->dss, 0, &s->blizzard);

}

static void n8x0_cbus_setup(struct n800_s *s)

{

    qemu_irq dat_out = qdev_get_gpio_in(s->cpu->gpio, N8X0_CBUS_DAT_GPIO);

    qemu_irq retu_irq = qdev_get_gpio_in(s->cpu->gpio, N8X0_RETU_GPIO);

    qemu_irq tahvo_irq = qdev_get_gpio_in(s->cpu->gpio, N8X0_TAHVO_GPIO);

    CBus *cbus = cbus_init(dat_out);

    qdev_connect_gpio_out(s->cpu->gpio, N8X0_CBUS_CLK_GPIO, cbus->clk);

    qdev_connect_gpio_out(s->cpu->gpio, N8X0_CBUS_DAT_GPIO, cbus->dat);

    qdev_connect_gpio_out(s->cpu->gpio, N8X0_CBUS_SEL_GPIO, cbus->sel);

    cbus_attach(cbus, s->retu = retu_init(retu_irq, 1));

    cbus_attach(cbus, s->tahvo = tahvo_init(tahvo_irq, 1));

}

static void n8x0_uart_setup(struct n800_s *s)

{

    CharDriverState *radio = uart_hci_init(

                    qdev_get_gpio_in(s->cpu->gpio, N8X0_BT_HOST_WKUP_GPIO));

    qdev_connect_gpio_out(s->cpu->gpio, N8X0_BT_RESET_GPIO,

                    csrhci_pins_get(radio)[csrhci_pin_reset]);

    qdev_connect_gpio_out(s->cpu->gpio, N8X0_BT_WKUP_GPIO,

                    csrhci_pins_get(radio)[csrhci_pin_wakeup]);

    omap_uart_attach(s->cpu->uart[BT_UART], radio);

}

static void n8x0_usb_power_cb(void *opaque, int line, int level)

{

    struct n800_s *s = opaque;

    tusb6010_power(s->usb, level);

}

static void n8x0_usb_setup(struct n800_s *s)

{

    qemu_irq tusb_irq = qdev_get_gpio_in(s->cpu->gpio, N8X0_TUSB_INT_GPIO);

    qemu_irq tusb_pwr = qemu_allocate_irqs(n8x0_usb_power_cb, s, 1)[0];

    TUSBState *tusb = tusb6010_init(tusb_irq);

    /* Using the NOR interface */

    omap_gpmc_attach(s->cpu->gpmc, N8X0_USB_ASYNC_CS,

                    tusb6010_async_io(tusb), NULL, NULL, tusb);

    omap_gpmc_attach(s->cpu->gpmc, N8X0_USB_SYNC_CS,

                    tusb6010_sync_io(tusb), NULL, NULL, tusb);

    s->usb = tusb;

    qdev_connect_gpio_out(s->cpu->gpio, N8X0_TUSB_ENABLE_GPIO, tusb_pwr);

}

/* Setup done before the main bootloader starts by some early setup code

 * - used when we want to run the main bootloader in emulation.  This

 * isn't documented.  */

static uint32_t n800_pinout[104] = {

    0x080f00d8, 0x00d40808, 0x03080808, 0x080800d0,

    0x00dc0808, 0x0b0f0f00, 0x080800b4, 0x00c00808,

    0x08080808, 0x180800c4, 0x00b80000, 0x08080808,

    0x080800bc, 0x00cc0808, 0x08081818, 0x18180128,

    0x01241800, 0x18181818, 0x000000f0, 0x01300000,

    0x00001b0b, 0x1b0f0138, 0x00e0181b, 0x1b031b0b,

    0x180f0078, 0x00740018, 0x0f0f0f1a, 0x00000080,

    0x007c0000, 0x00000000, 0x00000088, 0x00840000,

    0x00000000, 0x00000094, 0x00980300, 0x0f180003,

    0x0000008c, 0x00900f0f, 0x0f0f1b00, 0x0f00009c,

    0x01140000, 0x1b1b0f18, 0x0818013c, 0x01400008,

    0x00001818, 0x000b0110, 0x010c1800, 0x0b030b0f,

    0x181800f4, 0x00f81818, 0x00000018, 0x000000fc,

    0x00401808, 0x00000000, 0x0f1b0030, 0x003c0008,

    0x00000000, 0x00000038, 0x00340000, 0x00000000,

    0x1a080070, 0x00641a1a, 0x08080808, 0x08080060,

    0x005c0808, 0x08080808, 0x08080058, 0x00540808,

    0x08080808, 0x0808006c, 0x00680808, 0x08080808,

    0x000000a8, 0x00b00000, 0x08080808, 0x000000a0,

    0x00a40000, 0x00000000, 0x08ff0050, 0x004c0808,

    0xffffffff, 0xffff0048, 0x0044ffff, 0xffffffff,

    0x000000ac, 0x01040800, 0x08080b0f, 0x18180100,

    0x01081818, 0x0b0b1808, 0x1a0300e4, 0x012c0b1a,

    0x02020018, 0x0b000134, 0x011c0800, 0x0b1b1b00,

    0x0f0000c8, 0x00ec181b, 0x000f0f02, 0x00180118,

    0x01200000, 0x0f0b1b1b, 0x0f0200e8, 0x0000020b,

};

static void n800_setup_nolo_tags(void *sram_base)

{

    int i;

    uint32_t *p = sram_base + 0x8000;

    uint32_t *v = sram_base + 0xa000;

    memset(p, 0, 0x3000);

    strcpy((void *) (p + 0), "QEMU N800");

    strcpy((void *) (p + 8), "F5");