static int ser_console_setup(struct console *cons, char *str)
{
	int i;

	for (i=0; i<DUART_MAX_LINE; i++) {
		uart_state_t *port = uart_states + i;

		if (!sb1250_duart_present[i])
			continue;

		init_duart_port(port, i);
#if SIBYTE_1956_WAR
		last_mode1[i] = V_DUART_PARITY_MODE_NONE|V_DUART_BITS_PER_CHAR_8;
#endif
		WRITE_SERCSR(V_DUART_PARITY_MODE_NONE|V_DUART_BITS_PER_CHAR_8,
			     port->mode_1, i);
		WRITE_SERCSR(M_DUART_STOP_BIT_LEN_1,
			     port->mode_2, i);
		WRITE_SERCSR(V_DUART_BAUD_RATE(115200),
			     port->clk_sel, i);
		WRITE_SERCSR(M_DUART_RX_EN|M_DUART_TX_EN,
			     port->cmd, i);
	}
	return 0;
}
/* Set up the driver and register it, register the 2 1250 UART interrupts.  This
   is called from tty_init, or as a part of the module init */
static int __init sb1250_duart_init(void) 
{
	int i;

	sb1250_duart_driver = alloc_tty_driver(DUART_MAX_LINE);
	if (!sb1250_duart_driver)
		return -ENOMEM;

	sb1250_duart_driver->owner = THIS_MODULE;
	sb1250_duart_driver->name = "duart";
	sb1250_duart_driver->devfs_name = "duart/";
	sb1250_duart_driver->major = TTY_MAJOR;
	sb1250_duart_driver->minor_start = SB1250_DUART_MINOR_BASE;
	sb1250_duart_driver->type            = TTY_DRIVER_TYPE_SERIAL;
	sb1250_duart_driver->subtype         = SERIAL_TYPE_NORMAL;
	sb1250_duart_driver->init_termios    = tty_std_termios;
	sb1250_duart_driver->flags           = TTY_DRIVER_REAL_RAW;
	tty_set_operations(sb1250_duart_driver, &duart_ops);

	for (i=0; i<DUART_MAX_LINE; i++) {
		uart_state_t *port = uart_states + i;

		if (!sb1250_duart_present[i])
			continue;

		init_duart_port(port, i);
		spin_lock_init(&port->outp_lock);
		duart_mask_ints(i, M_DUART_IMR_ALL);
		if (request_irq(K_INT_UART_0+i, duart_int, 0, "uart", port)) {
			panic("Couldn't get uart0 interrupt line");
		}
		__raw_writeq(M_DUART_RX_EN|M_DUART_TX_EN,
			     (u8 *) IOADDR(A_DUART_CHANREG(i, R_DUART_CMD)));
		duart_set_cflag(i, DEFAULT_CFLAGS);
	}

	/* Interrupts are now active, our ISR can be called. */

	if (tty_register_driver(sb1250_duart_driver)) {
		printk(KERN_ERR "Couldn't register sb1250 duart serial driver\n");
		put_tty_driver(sb1250_duart_driver);
		return 1;
	}
	return 0;
}
/* Set up the driver and register it, register the 2 1250 UART interrupts.  This
   is called from tty_init, or as a part of the module init */
static int __init sb1250_duart_init(void) 
{
	int i;

	sb1250_duart_driver.magic            = TTY_DRIVER_MAGIC;
	sb1250_duart_driver.driver_name      = "serial";
#ifdef CONFIG_DEVFS_FS
	sb1250_duart_driver.name             = "tts/%d";
#else
	sb1250_duart_driver.name             = "ttyS";
#endif
	sb1250_duart_driver.major            = TTY_MAJOR;
	sb1250_duart_driver.minor_start      = SB1250_DUART_MINOR_BASE;
	sb1250_duart_driver.num              = DUART_MAX_LINE;
	sb1250_duart_driver.type             = TTY_DRIVER_TYPE_SERIAL;
	sb1250_duart_driver.subtype          = SERIAL_TYPE_NORMAL;
	sb1250_duart_driver.init_termios     = tty_std_termios;
	sb1250_duart_driver.flags            = TTY_DRIVER_REAL_RAW;
	sb1250_duart_driver.refcount         = &duart_refcount;
	sb1250_duart_driver.table            = duart_table;
	sb1250_duart_driver.termios          = duart_termios;
	sb1250_duart_driver.termios_locked   = duart_termios_locked;

	sb1250_duart_driver.open             = duart_open;
	sb1250_duart_driver.close            = duart_close;
	sb1250_duart_driver.write            = duart_write;
	sb1250_duart_driver.put_char         = duart_put_char;
	sb1250_duart_driver.write_room       = duart_write_room;
	sb1250_duart_driver.flush_chars      = duart_flush_chars;
	sb1250_duart_driver.chars_in_buffer  = duart_chars_in_buffer;
	sb1250_duart_driver.flush_buffer     = duart_flush_buffer;
	sb1250_duart_driver.ioctl            = duart_ioctl;
	sb1250_duart_driver.set_termios      = duart_set_termios;
	sb1250_duart_driver.stop             = duart_stop;
	sb1250_duart_driver.start            = duart_start;
	sb1250_duart_driver.hangup           = duart_hangup;
	sb1250_duart_driver.wait_until_sent  = duart_wait_until_sent;

	sb1250_duart_callout_driver          = sb1250_duart_driver;
#ifdef CONFIG_DEVFS_FS
	sb1250_duart_callout_driver.name     = "cua/%d";
#else
	sb1250_duart_callout_driver.name     = "cua";
#endif
	sb1250_duart_callout_driver.major    = TTYAUX_MAJOR;
	sb1250_duart_callout_driver.subtype  = SERIAL_TYPE_CALLOUT;

	for (i=0; i<DUART_MAX_LINE; i++) {
		uart_state_t *port = uart_states + i;

		if (!sb1250_duart_present[i])
			continue;

		init_duart_port(port, i);
		spin_lock_init(&port->outp_lock);
		duart_mask_ints(i, M_DUART_IMR_ALL);
		if (request_irq(K_INT_UART_0+i, duart_int, 0, "uart", port)) {
			panic("Couldn't get uart0 interrupt line");
		}
		out64(M_DUART_RX_EN|M_DUART_TX_EN,
		      IO_SPACE_BASE | A_DUART_CHANREG(i, R_DUART_CMD));
		duart_set_cflag(i, DEFAULT_CFLAGS);
	}

	/* Interrupts are now active, our ISR can be called. */

	if (tty_register_driver(&sb1250_duart_driver)) {
		printk(KERN_ERR "Couldn't register sb1250 duart serial driver\n");
	}
	if (tty_register_driver(&sb1250_duart_callout_driver)) {
		printk(KERN_ERR "Couldn't register sb1250 duart callout driver\n");
	}
	return 0;
}