revert-drivers-serial-s3c2410.c-meddlings.patch

Signed-off-by: Andy Green <andy@openmoko.com>

1 files changed, 1 insertions, 1854 deletions

diff --git a/drivers/serial/s3c2410.c b/drivers/serial/s3c2410.c
index 80c901c61c2..c3d4aa4bfee 100644
--- a/drivers/serial/s3c2410.c
+++ b/drivers/serial/s3c2410.c
@@ -17,1256 +17,10 @@
 #include <linux/init.h>
 #include <linux/serial_core.h>
 #include <linux/serial.h>
-#include <linux/delay.h>
-#include <linux/clk.h>
-#include <linux/resume-dependency.h>
 
 #include <asm/irq.h>
-#include <mach/hardware.h>
 
-#include <plat/regs-serial.h>
-#include <mach/regs-gpio.h>
-#include <mach/regs-clock.h>
-
-/* structures */
-
-struct s3c24xx_uart_info {
-	char			*name;
-	unsigned int		type;
-	unsigned int		fifosize;
-	unsigned long		rx_fifomask;
-	unsigned long		rx_fifoshift;
-	unsigned long		rx_fifofull;
-	unsigned long		tx_fifomask;
-	unsigned long		tx_fifoshift;
-	unsigned long		tx_fifofull;
-
-	/* clock source control */
-
-	int (*get_clksrc)(struct uart_port *, struct s3c24xx_uart_clksrc *clk);
-	int (*set_clksrc)(struct uart_port *, struct s3c24xx_uart_clksrc *clk);
-
-	/* uart controls */
-	int (*reset_port)(struct uart_port *, struct s3c2410_uartcfg *);
-};
-
-struct s3c24xx_uart_port {
-	unsigned char			rx_claimed;
-	unsigned char			tx_claimed;
-
-	struct s3c24xx_uart_info	*info;
-	struct s3c24xx_uart_clksrc	*clksrc;
-	struct clk			*clk;
-	struct clk			*baudclk;
-	struct uart_port		port;
-
-	struct resume_dependency	resume_dependency;
-};
-
-static int s3c24xx_serial_init(struct platform_driver *drv,
-			       struct s3c24xx_uart_info *info);
-
-/* configuration defines */
-
-#if 0
-#if 1
-/* send debug to the low-level output routines */
-
-extern void printascii(const char *);
-
-static void
-s3c24xx_serial_dbg(const char *fmt, ...)
-{
-	va_list va;
-	char buff[256];
-
-	va_start(va, fmt);
-	vsprintf(buff, fmt, va);
-	va_end(va);
-
-	printascii(buff);
-}
-
-#define dbg(x...) s3c24xx_serial_dbg(x)
-
-#else
-#define dbg(x...) printk(KERN_DEBUG "s3c24xx: ");
-#endif
-#else /* no debug */
-#define dbg(x...) do {} while(0)
-#endif
-
-/* UART name and device definitions */
-
-#define S3C24XX_SERIAL_NAME	"ttySAC"
-#define S3C24XX_SERIAL_MAJOR	204
-#define S3C24XX_SERIAL_MINOR	64
-
-
-/* conversion functions */
-
-#define s3c24xx_dev_to_port(__dev) (struct uart_port *)dev_get_drvdata(__dev)
-#define s3c24xx_dev_to_cfg(__dev) (struct s3c2410_uartcfg *)((__dev)->platform_data)
-
-/* we can support 3 uarts, but not always use them */
-
-#ifdef CONFIG_CPU_S3C2400
-#define NR_PORTS (2)
-#else
-#define NR_PORTS (3)
-#endif
-
-/* port irq numbers */
-
-#define TX_IRQ(port) ((port)->irq + 1)
-#define RX_IRQ(port) ((port)->irq)
-
-/* register access controls */
-
-#define portaddr(port, reg) ((port)->membase + (reg))
-
-#define rd_regb(port, reg) (__raw_readb(portaddr(port, reg)))
-#define rd_regl(port, reg) (__raw_readl(portaddr(port, reg)))
-
-#define wr_regb(port, reg, val) \
-  do { __raw_writeb(val, portaddr(port, reg)); } while(0)
-
-#define wr_regl(port, reg, val) \
-  do { __raw_writel(val, portaddr(port, reg)); } while(0)
-
-/* macros to change one thing to another */
-
-#define tx_enabled(port) ((port)->unused[0])
-#define rx_enabled(port) ((port)->unused[1])
-
-/* flag to ignore all characters comming in */
-#define RXSTAT_DUMMY_READ (0x10000000)
-
-static inline struct s3c24xx_uart_port *to_ourport(struct uart_port *port)
-{
-	return container_of(port, struct s3c24xx_uart_port, port);
-}
-
-/* translate a port to the device name */
-
-static inline const char *s3c24xx_serial_portname(struct uart_port *port)
-{
-	return to_platform_device(port->dev)->name;
-}
-
-static int s3c24xx_serial_txempty_nofifo(struct uart_port *port)
-{
-	return (rd_regl(port, S3C2410_UTRSTAT) & S3C2410_UTRSTAT_TXE);
-}
-
-static void s3c24xx_serial_rx_enable(struct uart_port *port)
-{
-	unsigned long flags;
-	unsigned int ucon, ufcon;
-	int count = 10000;
-
-	spin_lock_irqsave(&port->lock, flags);
-
-	while (--count && !s3c24xx_serial_txempty_nofifo(port))
-		udelay(100);
-
-	ufcon = rd_regl(port, S3C2410_UFCON);
-	ufcon |= S3C2410_UFCON_RESETRX;
-	wr_regl(port, S3C2410_UFCON, ufcon);
-
-	ucon = rd_regl(port, S3C2410_UCON);
-	ucon |= S3C2410_UCON_RXIRQMODE;
-	wr_regl(port, S3C2410_UCON, ucon);
-
-	rx_enabled(port) = 1;
-	spin_unlock_irqrestore(&port->lock, flags);
-}
-
-static void s3c24xx_serial_rx_disable(struct uart_port *port)
-{
-	unsigned long flags;
-	unsigned int ucon;
-
-	spin_lock_irqsave(&port->lock, flags);
-
-	ucon = rd_regl(port, S3C2410_UCON);
-	ucon &= ~S3C2410_UCON_RXIRQMODE;
-	wr_regl(port, S3C2410_UCON, ucon);
-
-	rx_enabled(port) = 0;
-	spin_unlock_irqrestore(&port->lock, flags);
-}
-
-static void s3c24xx_serial_stop_tx(struct uart_port *port)
-{
-	if (tx_enabled(port)) {
-		disable_irq(TX_IRQ(port));
-		tx_enabled(port) = 0;
-		if (port->flags & UPF_CONS_FLOW)
-			s3c24xx_serial_rx_enable(port);
-	}
-}
-
-static void s3c24xx_serial_start_tx(struct uart_port *port)
-{
-	if (!tx_enabled(port)) {
-		if (port->flags & UPF_CONS_FLOW)
-			s3c24xx_serial_rx_disable(port);
-
-		enable_irq(TX_IRQ(port));
-		tx_enabled(port) = 1;
-	}
-}
-
-
-static void s3c24xx_serial_stop_rx(struct uart_port *port)
-{
-	if (rx_enabled(port)) {
-		dbg("s3c24xx_serial_stop_rx: port=%p\n", port);
-		disable_irq(RX_IRQ(port));
-		rx_enabled(port) = 0;
-	}
-}
-
-static void s3c24xx_serial_enable_ms(struct uart_port *port)
-{
-}
-
-static inline struct s3c24xx_uart_info *s3c24xx_port_to_info(struct uart_port *port)
-{
-	return to_ourport(port)->info;
-}
-
-static inline struct s3c2410_uartcfg *s3c24xx_port_to_cfg(struct uart_port *port)
-{
-	if (port->dev == NULL)
-		return NULL;
-
-	return (struct s3c2410_uartcfg *)port->dev->platform_data;
-}
-
-static int s3c24xx_serial_rx_fifocnt(struct s3c24xx_uart_port *ourport,
-				     unsigned long ufstat)
-{
-	struct s3c24xx_uart_info *info = ourport->info;
-
-	if (ufstat & info->rx_fifofull)
-		return info->fifosize;
-
-	return (ufstat & info->rx_fifomask) >> info->rx_fifoshift;
-}
-
-
-/* ? - where has parity gone?? */
-#define S3C2410_UERSTAT_PARITY (0x1000)
-
-static irqreturn_t
-s3c24xx_serial_rx_chars(int irq, void *dev_id)
-{
-	struct s3c24xx_uart_port *ourport = dev_id;
-	struct uart_port *port = &ourport->port;
-	struct tty_struct *tty = port->info->port.tty;
-	unsigned int ufcon, ch, flag, ufstat, uerstat;
-	int max_count = 64;
-
-	while (max_count-- > 0) {
-		ufcon = rd_regl(port, S3C2410_UFCON);
-		ufstat = rd_regl(port, S3C2410_UFSTAT);
-
-		if (s3c24xx_serial_rx_fifocnt(ourport, ufstat) == 0)
-			break;
-
-		uerstat = rd_regl(port, S3C2410_UERSTAT);
-		ch = rd_regb(port, S3C2410_URXH);
-
-		if (port->flags & UPF_CONS_FLOW) {
-			int txe = s3c24xx_serial_txempty_nofifo(port);
-
-			if (rx_enabled(port)) {
-				if (!txe) {
-					rx_enabled(port) = 0;
-					continue;
-				}
-			} else {
-				if (txe) {
-					ufcon |= S3C2410_UFCON_RESETRX;
-					wr_regl(port, S3C2410_UFCON, ufcon);
-					rx_enabled(port) = 1;
-					goto out;
-				}
-				continue;
-			}
-		}
-
-		/* insert the character into the buffer */
-
-		flag = TTY_NORMAL;
-		port->icount.rx++;
-
-		if (unlikely(uerstat & S3C2410_UERSTAT_ANY)) {
-			printk(KERN_DEBUG "rxerr: port ch=0x%02x, rxs=0x%08x\n",
-			    ch, uerstat);
-
-			/* check for break */
-			if (uerstat & S3C2410_UERSTAT_BREAK) {
-				dbg("break!\n");
-				port->icount.brk++;
-				if (uart_handle_break(port))
-				    goto ignore_char;
-			}
-
-			if (uerstat & S3C2410_UERSTAT_FRAME)
-				port->icount.frame++;
-			if (uerstat & S3C2410_UERSTAT_OVERRUN)
-				port->icount.overrun++;
-
-			uerstat &= port->read_status_mask;
-
-			if (uerstat & S3C2410_UERSTAT_BREAK)
-				flag = TTY_BREAK;
-			else if (uerstat & S3C2410_UERSTAT_PARITY)
-				flag = TTY_PARITY;
-			else if (uerstat & ( S3C2410_UERSTAT_FRAME | S3C2410_UERSTAT_OVERRUN))
-				flag = TTY_FRAME;
-		}
-
-		if (uart_handle_sysrq_char(port, ch))
-			goto ignore_char;
-
-		uart_insert_char(port, uerstat, S3C2410_UERSTAT_OVERRUN, ch, flag);
-
-	ignore_char:
-		continue;
-	}
-	tty_flip_buffer_push(tty);
-
- out:
-	return IRQ_HANDLED;
-}
-
-static irqreturn_t s3c24xx_serial_tx_chars(int irq, void *id)
-{
-	struct s3c24xx_uart_port *ourport = id;
-	struct uart_port *port = &ourport->port;
-	struct circ_buf *xmit = &port->info->xmit;
-	int count = 256;
-
-	if (port->x_char) {
-		wr_regb(port, S3C2410_UTXH, port->x_char);
-		port->icount.tx++;
-		port->x_char = 0;
-		goto out;
-	}
-
-	/* if there isnt anything more to transmit, or the uart is now
-	 * stopped, disable the uart and exit
-	*/
-
-	if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {
-		s3c24xx_serial_stop_tx(port);
-		goto out;
-	}
-
-	/* try and drain the buffer... */
-
-	while (!uart_circ_empty(xmit) && count-- > 0) {
-		if (rd_regl(port, S3C2410_UFSTAT) & ourport->info->tx_fifofull)
-			break;
-
-		wr_regb(port, S3C2410_UTXH, xmit->buf[xmit->tail]);
-		xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
-		port->icount.tx++;
-	}
-
-	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
-		uart_write_wakeup(port);
-
-	if (uart_circ_empty(xmit))
-		s3c24xx_serial_stop_tx(port);
-
- out:
-	return IRQ_HANDLED;
-}
-
-static unsigned int s3c24xx_serial_tx_empty(struct uart_port *port)
-{
-	struct s3c24xx_uart_info *info = s3c24xx_port_to_info(port);
-	unsigned long ufstat = rd_regl(port, S3C2410_UFSTAT);
-	unsigned long ufcon = rd_regl(port, S3C2410_UFCON);
-
-	if (ufcon & S3C2410_UFCON_FIFOMODE) {
-		if ((ufstat & info->tx_fifomask) != 0 ||
-		    (ufstat & info->tx_fifofull))
-			return 0;
-
-		return 1;
-	}
-
-	return s3c24xx_serial_txempty_nofifo(port);
-}
-
-/* no modem control lines */
-static unsigned int s3c24xx_serial_get_mctrl(struct uart_port *port)
-{
-	unsigned int umstat = rd_regb(port,S3C2410_UMSTAT);
-
-	if (umstat & S3C2410_UMSTAT_CTS)
-		return TIOCM_CAR | TIOCM_DSR | TIOCM_CTS;
-	else
-		return TIOCM_CAR | TIOCM_DSR;
-}
-
-static void s3c24xx_serial_set_mctrl(struct uart_port *port, unsigned int mctrl)
-{
-	/* todo - possibly remove AFC and do manual CTS */
-}
-
-static void s3c24xx_serial_break_ctl(struct uart_port *port, int break_state)
-{
-	unsigned long flags;
-	unsigned int ucon;
-
-	spin_lock_irqsave(&port->lock, flags);
-
-	ucon = rd_regl(port, S3C2410_UCON);
-
-	if (break_state)
-		ucon |= S3C2410_UCON_SBREAK;
-	else
-		ucon &= ~S3C2410_UCON_SBREAK;
-
-	wr_regl(port, S3C2410_UCON, ucon);
-
-	spin_unlock_irqrestore(&port->lock, flags);
-}
-
-static void s3c24xx_serial_shutdown(struct uart_port *port)
-{
-	struct s3c24xx_uart_port *ourport = to_ourport(port);
-
-	if (ourport->tx_claimed) {
-		free_irq(TX_IRQ(port), ourport);
-		tx_enabled(port) = 0;
-		ourport->tx_claimed = 0;
-	}
-
-	if (ourport->rx_claimed) {
-		free_irq(RX_IRQ(port), ourport);
-		ourport->rx_claimed = 0;
-		rx_enabled(port) = 0;
-	}
-}
-
-
-static int s3c24xx_serial_startup(struct uart_port *port)
-{
-	struct s3c24xx_uart_port *ourport = to_ourport(port);
-	int ret;
-
-	dbg("s3c24xx_serial_startup: port=%p (%08lx,%p)\n",
-	    port->mapbase, port->membase);
-
-	rx_enabled(port) = 1;
-
-	ret = request_irq(RX_IRQ(port),
-			  s3c24xx_serial_rx_chars, 0,
-			  s3c24xx_serial_portname(port), ourport);
-
-	if (ret != 0) {
-		printk(KERN_ERR "cannot get irq %d\n", RX_IRQ(port));
-		return ret;
-	}
-
-	ourport->rx_claimed = 1;
-
-	dbg("requesting tx irq...\n");
-
-	tx_enabled(port) = 1;
-
-	ret = request_irq(TX_IRQ(port),
-			  s3c24xx_serial_tx_chars, 0,
-			  s3c24xx_serial_portname(port), ourport);
-
-	if (ret) {
-		printk(KERN_ERR "cannot get irq %d\n", TX_IRQ(port));
-		goto err;
-	}
-
-	ourport->tx_claimed = 1;
-
-	dbg("s3c24xx_serial_startup ok\n");
-
-	/* the port reset code should have done the correct
-	 * register setup for the port controls */
-
-	return ret;
-
- err:
-	s3c24xx_serial_shutdown(port);
-	return ret;
-}
-
-/* power power management control */
-
-static void s3c24xx_serial_pm(struct uart_port *port, unsigned int level,
-			      unsigned int old)
-{
-	struct s3c24xx_uart_port *ourport = to_ourport(port);
-
-	switch (level) {
-	case 3:
-		if (!IS_ERR(ourport->baudclk) && ourport->baudclk != NULL)
-			clk_disable(ourport->baudclk);
-
-		clk_disable(ourport->clk);
-		break;
-
-	case 0:
-		clk_enable(ourport->clk);
-
-		if (!IS_ERR(ourport->baudclk) && ourport->baudclk != NULL)
-			clk_enable(ourport->baudclk);
-
-		break;
-	default:
-		printk(KERN_ERR "s3c24xx_serial: unknown pm %d\n", level);
-	}
-}
-
-/* baud rate calculation
- *
- * The UARTs on the S3C2410/S3C2440 can take their clocks from a number
- * of different sources, including the peripheral clock ("pclk") and an
- * external clock ("uclk"). The S3C2440 also adds the core clock ("fclk")
- * with a programmable extra divisor.
- *
- * The following code goes through the clock sources, and calculates the
- * baud clocks (and the resultant actual baud rates) and then tries to
- * pick the closest one and select that.
- *
-*/
-
-
-#define MAX_CLKS (8)
-
-static struct s3c24xx_uart_clksrc tmp_clksrc = {
-	.name		= "pclk",
-	.min_baud	= 0,
-	.max_baud	= 0,
-	.divisor	= 1,
-};
-
-static inline int
-s3c24xx_serial_getsource(struct uart_port *port, struct s3c24xx_uart_clksrc *c)
-{
-	struct s3c24xx_uart_info *info = s3c24xx_port_to_info(port);
-
-	return (info->get_clksrc)(port, c);
-}
-
-static inline int
-s3c24xx_serial_setsource(struct uart_port *port, struct s3c24xx_uart_clksrc *c)
-{
-	struct s3c24xx_uart_info *info = s3c24xx_port_to_info(port);
-
-	return (info->set_clksrc)(port, c);
-}
-
-struct baud_calc {
-	struct s3c24xx_uart_clksrc	*clksrc;
-	unsigned int			 calc;
-	unsigned int			 quot;
-	struct clk			*src;
-};
-
-static int s3c24xx_serial_calcbaud(struct baud_calc *calc,
-				   struct uart_port *port,
-				   struct s3c24xx_uart_clksrc *clksrc,
-				   unsigned int baud)
-{
-	unsigned long rate;
-
-	calc->src = clk_get(port->dev, clksrc->name);
-	if (calc->src == NULL || IS_ERR(calc->src))
-		return 0;
-
-	rate = clk_get_rate(calc->src);
-	rate /= clksrc->divisor;
-
-	calc->clksrc = clksrc;
-	calc->quot = (rate + (8 * baud)) / (16 * baud);
-	calc->calc = (rate / (calc->quot * 16));
-
-	calc->quot--;
-	return 1;
-}
-
-static unsigned int s3c24xx_serial_getclk(struct uart_port *port,
-					  struct s3c24xx_uart_clksrc **clksrc,
-					  struct clk **clk,
-					  unsigned int baud)
-{
-	struct s3c2410_uartcfg *cfg = s3c24xx_port_to_cfg(port);
-	struct s3c24xx_uart_clksrc *clkp;
-	struct baud_calc res[MAX_CLKS];
-	struct baud_calc *resptr, *best, *sptr;
-	int i;
-
-	clkp = cfg->clocks;
-	best = NULL;
-
-	if (cfg->clocks_size < 2) {
-		if (cfg->clocks_size == 0)
-			clkp = &tmp_clksrc;
-
-		/* check to see if we're sourcing fclk, and if so we're
-		 * going to have to update the clock source
-		 */
-
-		if (strcmp(clkp->name, "fclk") == 0) {
-			struct s3c24xx_uart_clksrc src;
-
-			s3c24xx_serial_getsource(port, &src);
-
-			/* check that the port already using fclk, and if
-			 * not, then re-select fclk
-			 */
-
-			if (strcmp(src.name, clkp->name) == 0) {
-				s3c24xx_serial_setsource(port, clkp);
-				s3c24xx_serial_getsource(port, &src);
-			}
-
-			clkp->divisor = src.divisor;
-		}
-
-		s3c24xx_serial_calcbaud(res, port, clkp, baud);
-		best = res;
-		resptr = best + 1;
-	} else {
-		resptr = res;
-
-		for (i = 0; i < cfg->clocks_size; i++, clkp++) {
-			if (s3c24xx_serial_calcbaud(resptr, port, clkp, baud))
-				resptr++;
-		}
-	}
-
-	/* ok, we now need to select the best clock we found */
-
-	if (!best) {
-		unsigned int deviation = (1<<30)|((1<<30)-1);
-		int calc_deviation;
-
-		for (sptr = res; sptr < resptr; sptr++) {
-
-			calc_deviation = baud - sptr->calc;
-			if (calc_deviation < 0)
-				calc_deviation = -calc_deviation;
-
-			if (calc_deviation < deviation) {
-				best = sptr;
-				deviation = calc_deviation;
-			}
-		}
-
-	}
-
-	/* store results to pass back */
-
-	*clksrc = best->clksrc;
-	*clk    = best->src;
-
-	return best->quot;
-}
-
-static void s3c24xx_serial_set_termios(struct uart_port *port,
-				       struct ktermios *termios,
-				       struct ktermios *old)
-{
-	struct s3c2410_uartcfg *cfg = s3c24xx_port_to_cfg(port);
-	struct s3c24xx_uart_port *ourport = to_ourport(port);
-	struct s3c24xx_uart_clksrc *clksrc = NULL;
-	struct clk *clk = NULL;
-	unsigned long flags;
-	unsigned int baud, quot;
-	unsigned int ulcon;
-	unsigned int umcon;
-
-	/*
-	 * We don't support modem control lines.
-	 */
-	termios->c_cflag &= ~(HUPCL | CMSPAR);
-	termios->c_cflag |= CLOCAL;
-
-	/*
-	 * Ask the core to calculate the divisor for us.
-	 */
-
-	baud = uart_get_baud_rate(port, termios, old, 0, 115200*8);
-
-	if (baud == 38400 && (port->flags & UPF_SPD_MASK) == UPF_SPD_CUST)
-		quot = port->custom_divisor;
-	else
-		quot = s3c24xx_serial_getclk(port, &clksrc, &clk, baud);
-
-	/* check to see if we need  to change clock source */
-
-	if (ourport->clksrc != clksrc || ourport->baudclk != clk) {
-		s3c24xx_serial_setsource(port, clksrc);
-
-		if (ourport->baudclk != NULL && !IS_ERR(ourport->baudclk)) {
-			clk_disable(ourport->baudclk);
-			ourport->baudclk  = NULL;
-		}
-
-		clk_enable(clk);
-
-		ourport->clksrc = clksrc;
-		ourport->baudclk = clk;
-	}
-
-	switch (termios->c_cflag & CSIZE) {
-	case CS5:
-		dbg("config: 5bits/char\n");
-		ulcon = S3C2410_LCON_CS5;
-		break;
-	case CS6:
-		dbg("config: 6bits/char\n");
-		ulcon = S3C2410_LCON_CS6;
-		break;
-	case CS7:
-		dbg("config: 7bits/char\n");
-		ulcon = S3C2410_LCON_CS7;
-		break;
-	case CS8:
-	default:
-		dbg("config: 8bits/char\n");
-		ulcon = S3C2410_LCON_CS8;
-		break;
-	}
-
-	/* preserve original lcon IR settings */
-	ulcon |= (cfg->ulcon & S3C2410_LCON_IRM);
-
-	if (termios->c_cflag & CSTOPB)
-		ulcon |= S3C2410_LCON_STOPB;
-
-	umcon = (termios->c_cflag & CRTSCTS) ? S3C2410_UMCOM_AFC : 0;
-
-	if (termios->c_cflag & PARENB) {
-		if (termios->c_cflag & PARODD)
-			ulcon |= S3C2410_LCON_PODD;
-		else
-			ulcon |= S3C2410_LCON_PEVEN;
-	} else {
-		ulcon |= S3C2410_LCON_PNONE;
-	}
-
-	spin_lock_irqsave(&port->lock, flags);
-
-	dbg("setting ulcon to %08x, brddiv to %d\n", ulcon, quot);
-
-	wr_regl(port, S3C2410_ULCON, ulcon);
-	wr_regl(port, S3C2410_UBRDIV, quot);
-	wr_regl(port, S3C2410_UMCON, umcon);
-
-	dbg("uart: ulcon = 0x%08x, ucon = 0x%08x, ufcon = 0x%08x\n",
-	    rd_regl(port, S3C2410_ULCON),
-	    rd_regl(port, S3C2410_UCON),
-	    rd_regl(port, S3C2410_UFCON));
-
-	/*
-	 * Update the per-port timeout.
-	 */
-	uart_update_timeout(port, termios->c_cflag, baud);
-
-	/*
-	 * Which character status flags are we interested in?
-	 */
-	port->read_status_mask = S3C2410_UERSTAT_OVERRUN;
-	if (termios->c_iflag & INPCK)
-		port->read_status_mask |= S3C2410_UERSTAT_FRAME | S3C2410_UERSTAT_PARITY;
-
-	/*
-	 * Which character status flags should we ignore?
-	 */
-	port->ignore_status_mask = 0;
-	if (termios->c_iflag & IGNPAR)
-		port->ignore_status_mask |= S3C2410_UERSTAT_OVERRUN;
-	if (termios->c_iflag & IGNBRK && termios->c_iflag & IGNPAR)
-		port->ignore_status_mask |= S3C2410_UERSTAT_FRAME;
-
-	/*
-	 * Ignore all characters if CREAD is not set.
-	 */
-	if ((termios->c_cflag & CREAD) == 0)
-		port->ignore_status_mask |= RXSTAT_DUMMY_READ;
-
-	spin_unlock_irqrestore(&port->lock, flags);
-}
-
-static const char *s3c24xx_serial_type(struct uart_port *port)
-{
-	switch (port->type) {
-	case PORT_S3C2410:
-		return "S3C2410";
-	case PORT_S3C2440:
-		return "S3C2440";
-	case PORT_S3C2412:
-		return "S3C2412";
-	default:
-		return NULL;
-	}
-}
-
-#define MAP_SIZE (0x100)
-
-static void s3c24xx_serial_release_port(struct uart_port *port)
-{
-	release_mem_region(port->mapbase, MAP_SIZE);
-}
-
-static int s3c24xx_serial_request_port(struct uart_port *port)
-{
-	const char *name = s3c24xx_serial_portname(port);
-	return request_mem_region(port->mapbase, MAP_SIZE, name) ? 0 : -EBUSY;
-}
-
-static void s3c24xx_serial_config_port(struct uart_port *port, int flags)
-{
-	struct s3c24xx_uart_info *info = s3c24xx_port_to_info(port);
-
-	if (flags & UART_CONFIG_TYPE &&
-	    s3c24xx_serial_request_port(port) == 0)
-		port->type = info->type;
-}
-
-/*
- * verify the new serial_struct (for TIOCSSERIAL).
- */
-static int
-s3c24xx_serial_verify_port(struct uart_port *port, struct serial_struct *ser)
-{
-	struct s3c24xx_uart_info *info = s3c24xx_port_to_info(port);
-
-	if (ser->type != PORT_UNKNOWN && ser->type != info->type)
-		return -EINVAL;
-
-	return 0;
-}
-
-
-#ifdef CONFIG_SERIAL_S3C2410_CONSOLE
-
-static struct console s3c24xx_serial_console;
-
-#define S3C24XX_SERIAL_CONSOLE &s3c24xx_serial_console
-#else
-#define S3C24XX_SERIAL_CONSOLE NULL
-#endif
-
-static struct uart_ops s3c24xx_serial_ops = {
-	.pm		= s3c24xx_serial_pm,
-	.tx_empty	= s3c24xx_serial_tx_empty,
-	.get_mctrl	= s3c24xx_serial_get_mctrl,
-	.set_mctrl	= s3c24xx_serial_set_mctrl,
-	.stop_tx	= s3c24xx_serial_stop_tx,
-	.start_tx	= s3c24xx_serial_start_tx,
-	.stop_rx	= s3c24xx_serial_stop_rx,
-	.enable_ms	= s3c24xx_serial_enable_ms,
-	.break_ctl	= s3c24xx_serial_break_ctl,
-	.startup	= s3c24xx_serial_startup,
-	.shutdown	= s3c24xx_serial_shutdown,
-	.set_termios	= s3c24xx_serial_set_termios,
-	.type		= s3c24xx_serial_type,
-	.release_port	= s3c24xx_serial_release_port,
-	.request_port	= s3c24xx_serial_request_port,
-	.config_port	= s3c24xx_serial_config_port,
-	.verify_port	= s3c24xx_serial_verify_port,
-};
-
-
-static struct uart_driver s3c24xx_uart_drv = {
-	.owner		= THIS_MODULE,
-	.dev_name	= "s3c2410_serial",
-	.nr		= 3,
-	.cons		= S3C24XX_SERIAL_CONSOLE,
-	.driver_name	= S3C24XX_SERIAL_NAME,
-	.major		= S3C24XX_SERIAL_MAJOR,
-	.minor		= S3C24XX_SERIAL_MINOR,
-};
-
-static struct s3c24xx_uart_port s3c24xx_serial_ports[NR_PORTS] = {
-	[0] = {
-		.port = {
-			.lock		= __SPIN_LOCK_UNLOCKED(s3c24xx_serial_ports[0].port.lock),
-			.iotype		= UPIO_MEM,
-			.irq		= IRQ_S3CUART_RX0,
-			.uartclk	= 0,
-			.fifosize	= 16,
-			.ops		= &s3c24xx_serial_ops,
-			.flags		= UPF_BOOT_AUTOCONF,
-			.line		= 0,
-		}
-	},
-	[1] = {
-		.port = {
-			.lock		= __SPIN_LOCK_UNLOCKED(s3c24xx_serial_ports[1].port.lock),
-			.iotype		= UPIO_MEM,
-			.irq		= IRQ_S3CUART_RX1,
-			.uartclk	= 0,
-			.fifosize	= 16,
-			.ops		= &s3c24xx_serial_ops,
-			.flags		= UPF_BOOT_AUTOCONF,
-			.line		= 1,
-		}
-	},
-#if NR_PORTS > 2
-
-	[2] = {
-		.port = {
-			.lock		= __SPIN_LOCK_UNLOCKED(s3c24xx_serial_ports[2].port.lock),
-			.iotype		= UPIO_MEM,
-			.irq		= IRQ_S3CUART_RX2,
-			.uartclk	= 0,
-			.fifosize	= 16,
-			.ops		= &s3c24xx_serial_ops,
-			.flags		= UPF_BOOT_AUTOCONF,
-			.line		= 2,
-		}
-	}
-#endif
-};
-
-static void s3c24xx_serial_force_debug_port_up(void)
-{
-	struct s3c24xx_uart_port *ourport = &s3c24xx_serial_ports[
-							 CONFIG_DEBUG_S3C_UART];
-	struct s3c24xx_uart_clksrc *clksrc = NULL;
-	struct clk *clk = NULL;
-	unsigned long tmp;
-
-	s3c24xx_serial_getclk(&ourport->port, &clksrc, &clk, 115200);
-
-	tmp = __raw_readl(S3C2410_CLKCON);
-
-	/* re-start uart clocks */
-	tmp |= S3C2410_CLKCON_UART0;
-	tmp |= S3C2410_CLKCON_UART1;
-	tmp |= S3C2410_CLKCON_UART2;
-
-	__raw_writel(tmp, S3C2410_CLKCON);
-	udelay(10);
-
-	s3c24xx_serial_setsource(&ourport->port, clksrc);
-
-	if (ourport->baudclk != NULL && !IS_ERR(ourport->baudclk)) {
-		clk_disable(ourport->baudclk);
-		ourport->baudclk  = NULL;
-	}
-
-	clk_enable(clk);
-
-	ourport->clksrc = clksrc;
-	ourport->baudclk = clk;
-}
-
-static void s3c2410_printascii(const char *sz)
-{
-	struct s3c24xx_uart_port *ourport = &s3c24xx_serial_ports[
-							 CONFIG_DEBUG_S3C_UART];
-	struct uart_port *port = &ourport->port;
-
-	/* 8 N 1 */
-	wr_regl(port, S3C2410_ULCON, (rd_regl(port, S3C2410_ULCON)) | 3);
-	/* polling mode */
-	wr_regl(port, S3C2410_UCON, (rd_regl(port, S3C2410_UCON) & ~0xc0f) | 5);
-	/* disable FIFO */
-	wr_regl(port, S3C2410_UFCON, (rd_regl(port, S3C2410_UFCON) & ~0x01));
-	/* fix baud rate */
-	wr_regl(port, S3C2410_UBRDIV, 26);
-
-	while (*sz) {
-		int timeout = 10000000;
-
-		/* spin on it being busy */
-		while ((!(rd_regl(port, S3C2410_UTRSTAT) & 2)) && timeout--)
-			;
-
-		/* transmit register */
-		wr_regl(port, S3C2410_UTXH, *sz);
-
-		sz++;
-	}
-}
-
-
-/* s3c24xx_serial_resetport
- *
- * wrapper to call the specific reset for this port (reset the fifos
- * and the settings)
-*/
-
-static inline int s3c24xx_serial_resetport(struct uart_port * port,
-					   struct s3c2410_uartcfg *cfg)
-{
-	struct s3c24xx_uart_info *info = s3c24xx_port_to_info(port);
-
-	return (info->reset_port)(port, cfg);
-}
-
-/* s3c24xx_serial_init_port
- *
- * initialise a single serial port from the platform device given
- */
-
-static int s3c24xx_serial_init_port(struct s3c24xx_uart_port *ourport,
-				    struct s3c24xx_uart_info *info,
-				    struct platform_device *platdev)
-{
-	struct uart_port *port = &ourport->port;
-	struct s3c2410_uartcfg *cfg;
-	struct resource *res;
-	int ret;
-
-	dbg("s3c24xx_serial_init_port: port=%p, platdev=%p\n", port, platdev);
-
-	if (platdev == NULL)
-		return -ENODEV;
-
-	cfg = s3c24xx_dev_to_cfg(&platdev->dev);
-
-	if (port->mapbase != 0)
-		return 0;
-
-	if (cfg->hwport > 3)
-		return -EINVAL;
-
-	/* setup info for port */
-	port->dev	= &platdev->dev;
-	ourport->info	= info;
-
-	/* copy the info in from provided structure */
-	ourport->port.fifosize = info->fifosize;
-
-	dbg("s3c24xx_serial_init_port: %p (hw %d)...\n", port, cfg->hwport);
-
-	port->uartclk = 1;
-
-	if (cfg->uart_flags & UPF_CONS_FLOW) {
-		dbg("s3c24xx_serial_init_port: enabling flow control\n");
-		port->flags |= UPF_CONS_FLOW;
-	}
-
-	/* sort our the physical and virtual addresses for each UART */
-
-	res = platform_get_resource(platdev, IORESOURCE_MEM, 0);
-	if (res == NULL) {
-		printk(KERN_ERR "failed to find memory resource for uart\n");
-		return -EINVAL;
-	}
-
-	dbg("resource %p (%lx..%lx)\n", res, res->start, res->end);
-
-	port->mapbase	= res->start;
-	port->membase	= S3C24XX_VA_UART + (res->start - S3C24XX_PA_UART);
-	ret = platform_get_irq(platdev, 0);
-	if (ret < 0)
-		port->irq = 0;
-	else
-		port->irq = ret;
-
-	ourport->clk	= clk_get(&platdev->dev, "uart");
-
-	dbg("port: map=%08x, mem=%08x, irq=%d, clock=%ld\n",
-	    port->mapbase, port->membase, port->irq, port->uartclk);
-
-	/* reset the fifos (and setup the uart) */
-	s3c24xx_serial_resetport(port, cfg);
-	return 0;
-}
-
-/* Device driver serial port probe */
-
-static int probe_index = 0;
-
-static int s3c24xx_serial_probe(struct platform_device *dev,
-				struct s3c24xx_uart_info *info)
-{
-	struct s3c24xx_uart_port *ourport;
-	int ret;
-
-	dbg("s3c24xx_serial_probe(%p, %p) %d\n", dev, info, probe_index);
-
-	ourport = &s3c24xx_serial_ports[probe_index];
-	probe_index++;
-
-	dbg("%s: initialising port %p...\n", __func__, ourport);
-	init_resume_dependency_list(&ourport->resume_dependency);
-
-	ret = s3c24xx_serial_init_port(ourport, info, dev);
-	if (ret < 0)
-		goto probe_err;
-
-	dbg("%s: adding port\n", __func__);
-	uart_add_one_port(&s3c24xx_uart_drv, &ourport->port);
-	platform_set_drvdata(dev, &ourport->port);
-
-	return 0;
-
- probe_err:
-	return ret;
-}
-
-static int s3c24xx_serial_remove(struct platform_device *dev)
-{
-	struct uart_port *port = s3c24xx_dev_to_port(&dev->dev);
-
-	if (port)
-		uart_remove_one_port(&s3c24xx_uart_drv, port);
-
-	return 0;
-}
-
-/* UART power management code */
-
-#ifdef CONFIG_PM
-
-static int s3c24xx_serial_suspend(struct platform_device *dev, pm_message_t state)
-{
-	struct uart_port *port = s3c24xx_dev_to_port(&dev->dev);
-
-	if (port)
-		uart_suspend_port(&s3c24xx_uart_drv, port);
-
-	return 0;
-}
-
-void s3c24xx_serial_register_resume_dependency(struct resume_dependency *
-					      resume_dependency, int uart_index)
-{
-	struct s3c24xx_uart_port *ourport = &s3c24xx_serial_ports[uart_index];
-
-	register_resume_dependency(&ourport->resume_dependency,
-							     resume_dependency);
-}
-EXPORT_SYMBOL(s3c24xx_serial_register_resume_dependency);
-
-static int s3c24xx_serial_resume(struct platform_device *dev)
-{
-	struct uart_port *port = s3c24xx_dev_to_port(&dev->dev);
-	struct s3c24xx_uart_port *ourport = to_ourport(port);
-
-	if (port) {
-		clk_enable(ourport->clk);
-		s3c24xx_serial_resetport(port, s3c24xx_port_to_cfg(port));
-		clk_disable(ourport->clk);
-
-		uart_resume_port(&s3c24xx_uart_drv, port);
-	}
-
-	callback_all_resume_dependencies(&ourport->resume_dependency);
-
-	return 0;
-}
-
-#else
-#define s3c24xx_serial_suspend NULL
-#define s3c24xx_serial_resume  NULL
-#endif
-
-static int s3c24xx_serial_init(struct platform_driver *drv,
-			       struct s3c24xx_uart_info *info)
-{
-	/* set up the emergency debug UART functions */
-
-	printk_emergency_debug_spew_init = s3c24xx_serial_force_debug_port_up;
-	printk_emergency_debug_spew_send_string = s3c2410_printascii;
-
-	dbg("s3c24xx_serial_init(%p,%p)\n", drv, info);
-	return platform_driver_register(drv);
-}
-
-/* now comes the code to initialise either the s3c2410 or s3c2440 serial
- * port information
-*/
-
-/* cpu specific variations on the serial port support */
-
-#ifdef CONFIG_CPU_S3C2400
-
-static int s3c2400_serial_getsource(struct uart_port *port,
-				    struct s3c24xx_uart_clksrc *clk)
-{
-	clk->divisor = 1;
-	clk->name = "pclk";
-
-	return 0;
-}
-
-static int s3c2400_serial_setsource(struct uart_port *port,
-				    struct s3c24xx_uart_clksrc *clk)
-{
-	return 0;
-}
-
-static int s3c2400_serial_resetport(struct uart_port *port,
-				    struct s3c2410_uartcfg *cfg)
-{
-	dbg("s3c2400_serial_resetport: port=%p (%08lx), cfg=%p\n",
-	    port, port->mapbase, cfg);
-
-	wr_regl(port, S3C2410_UCON,  cfg->ucon);
-	wr_regl(port, S3C2410_ULCON, cfg->ulcon);
-
-	/* reset both fifos */
-
-	wr_regl(port, S3C2410_UFCON, cfg->ufcon | S3C2410_UFCON_RESETBOTH);
-	wr_regl(port, S3C2410_UFCON, cfg->ufcon);
-
-	return 0;
-}
-
-static struct s3c24xx_uart_info s3c2400_uart_inf = {
-	.name		= "Samsung S3C2400 UART",
-	.type		= PORT_S3C2400,
-	.fifosize	= 16,
-	.rx_fifomask	= S3C2410_UFSTAT_RXMASK,
-	.rx_fifoshift	= S3C2410_UFSTAT_RXSHIFT,
-	.rx_fifofull	= S3C2410_UFSTAT_RXFULL,
-	.tx_fifofull	= S3C2410_UFSTAT_TXFULL,
-	.tx_fifomask	= S3C2410_UFSTAT_TXMASK,
-	.tx_fifoshift	= S3C2410_UFSTAT_TXSHIFT,
-	.get_clksrc	= s3c2400_serial_getsource,
-	.set_clksrc	= s3c2400_serial_setsource,
-	.reset_port	= s3c2400_serial_resetport,
-};
-
-static int s3c2400_serial_probe(struct platform_device *dev)
-{
-	return s3c24xx_serial_probe(dev, &s3c2400_uart_inf);
-}
-
-static inline int s3c2400_serial_init(void)
-{
-         return s3c24xx_serial_init(&s3c2400_serial_drv, &s3c2400_uart_inf);
-}
-static inline void s3c2400_serial_exit(void)
-{
-         platform_driver_unregister(&s3c2400_serial_drv);
-}
-
-static struct platform_driver s3c2400_serial_drv = {
-	.probe		= s3c2400_serial_probe,
-	.remove		= s3c24xx_serial_remove,
-	.suspend	= s3c24xx_serial_suspend,
-	.resume		= s3c24xx_serial_resume,
-	.driver		= {
-		.name	= "s3c2400-uart",
-		.owner	= THIS_MODULE,
-	},
-};
+#include <asm/hardware.h>
 
 #include <asm/plat-s3c/regs-serial.h>
 #include <asm/arch/regs-gpio.h>
@@ -1359,613 +113,6 @@ static void __exit s3c2410_serial_exit(void)
 module_init(s3c2410_serial_init);
 module_exit(s3c2410_serial_exit);
 
-#define s3c2410_uart_inf_at &s3c2410_uart_inf
-#else
-
-static inline int s3c2410_serial_init(void)
-{
-	return 0;
-}
-
-static inline void s3c2410_serial_exit(void)
-{
-}
-
-#define s3c2410_uart_inf_at NULL
-
-#endif /* CONFIG_CPU_S3C2410 */
-
-#if defined(CONFIG_CPU_S3C2440) || defined(CONFIG_CPU_S3C2442)
-
-static int s3c2440_serial_setsource(struct uart_port *port,
-				     struct s3c24xx_uart_clksrc *clk)
-{
-	unsigned long ucon = rd_regl(port, S3C2410_UCON);
-
-	// todo - proper fclk<>nonfclk switch //
-
-	ucon &= ~S3C2440_UCON_CLKMASK;
-
-	if (strcmp(clk->name, "uclk") == 0)
-		ucon |= S3C2440_UCON_UCLK;
-	else if (strcmp(clk->name, "pclk") == 0)
-		ucon |= S3C2440_UCON_PCLK;
-	else if (strcmp(clk->name, "fclk") == 0)
-		ucon |= S3C2440_UCON_FCLK;
-	else {
-		printk(KERN_ERR "unknown clock source %s\n", clk->name);
-		return -EINVAL;
-	}
-
-	wr_regl(port, S3C2410_UCON, ucon);
-	return 0;
-}
-
-
-static int s3c2440_serial_getsource(struct uart_port *port,
-				    struct s3c24xx_uart_clksrc *clk)
-{
-	unsigned long ucon = rd_regl(port, S3C2410_UCON);
-	unsigned long ucon0, ucon1, ucon2;
-
-	switch (ucon & S3C2440_UCON_CLKMASK) {
-	case S3C2440_UCON_UCLK:
-		clk->divisor = 1;
-		clk->name = "uclk";
-		break;
-
-	case S3C2440_UCON_PCLK:
-	case S3C2440_UCON_PCLK2:
-		clk->divisor = 1;
-		clk->name = "pclk";
-		break;
-
-	case S3C2440_UCON_FCLK:
-		/* the fun of calculating the uart divisors on
-		 * the s3c2440 */
-
-		ucon0 = __raw_readl(S3C24XX_VA_UART0 + S3C2410_UCON);
-		ucon1 = __raw_readl(S3C24XX_VA_UART1 + S3C2410_UCON);
-		ucon2 = __raw_readl(S3C24XX_VA_UART2 + S3C2410_UCON);
-
-		printk("ucons: %08lx, %08lx, %08lx\n", ucon0, ucon1, ucon2);
-
-		ucon0 &= S3C2440_UCON0_DIVMASK;
-		ucon1 &= S3C2440_UCON1_DIVMASK;
-		ucon2 &= S3C2440_UCON2_DIVMASK;
-
-		if (ucon0 != 0) {
-			clk->divisor = ucon0 >> S3C2440_UCON_DIVSHIFT;
-			clk->divisor += 6;
-		} else if (ucon1 != 0) {
-			clk->divisor = ucon1 >> S3C2440_UCON_DIVSHIFT;
-			clk->divisor += 21;
-		} else if (ucon2 != 0) {
-			clk->divisor = ucon2 >> S3C2440_UCON_DIVSHIFT;
-			clk->divisor += 36;
-		} else {
-			/* manual calims 44, seems to be 9 */
-			clk->divisor = 9;
-		}
-
-		clk->name = "fclk";
-		break;
-	}
-
-	return 0;
-}
-
-static int s3c2440_serial_resetport(struct uart_port *port,
-				    struct s3c2410_uartcfg *cfg)
-{
-	unsigned long ucon = rd_regl(port, S3C2410_UCON);
-
-	dbg("s3c2440_serial_resetport: port=%p (%08lx), cfg=%p\n",
-	    port, port->mapbase, cfg);
-
-	/* ensure we don't change the clock settings... */
-
-	ucon &= (S3C2440_UCON0_DIVMASK | (3<<10));
-
-	wr_regl(port, S3C2410_UCON,  ucon | cfg->ucon);
-	wr_regl(port, S3C2410_ULCON, cfg->ulcon);
-
-	/* reset both fifos */
-
-	wr_regl(port, S3C2410_UFCON, cfg->ufcon | S3C2410_UFCON_RESETBOTH);
-	wr_regl(port, S3C2410_UFCON, cfg->ufcon);
-
-	return 0;
-}
-
-static struct s3c24xx_uart_info s3c2440_uart_inf = {
-	.name		= "Samsung S3C2440 UART",
-	.type		= PORT_S3C2440,
-	.fifosize	= 64,
-	.rx_fifomask	= S3C2440_UFSTAT_RXMASK,
-	.rx_fifoshift	= S3C2440_UFSTAT_RXSHIFT,
-	.rx_fifofull	= S3C2440_UFSTAT_RXFULL,
-	.tx_fifofull	= S3C2440_UFSTAT_TXFULL,
-	.tx_fifomask	= S3C2440_UFSTAT_TXMASK,
-	.tx_fifoshift	= S3C2440_UFSTAT_TXSHIFT,
-	.get_clksrc	= s3c2440_serial_getsource,
-	.set_clksrc	= s3c2440_serial_setsource,
-	.reset_port	= s3c2440_serial_resetport,
-};
-
-/* device management */
-
-static int s3c2440_serial_probe(struct platform_device *dev)
-{
-	dbg("s3c2440_serial_probe: dev=%p\n", dev);
-	return s3c24xx_serial_probe(dev, &s3c2440_uart_inf);
-}
-
-static struct platform_driver s3c2440_serial_drv = {
-	.probe		= s3c2440_serial_probe,
-	.remove		= s3c24xx_serial_remove,
-	.suspend	= s3c24xx_serial_suspend,
-	.resume		= s3c24xx_serial_resume,
-	.driver		= {
-		.name	= "s3c2440-uart",
-		.owner	= THIS_MODULE,
-	},
-};
-
-
-static inline int s3c2440_serial_init(void)
-{
-	return s3c24xx_serial_init(&s3c2440_serial_drv, &s3c2440_uart_inf);
-}
-
-static inline void s3c2440_serial_exit(void)
-{
-	platform_driver_unregister(&s3c2440_serial_drv);
-}
-
-#define s3c2440_uart_inf_at &s3c2440_uart_inf
-#else
-
-static inline int s3c2440_serial_init(void)
-{
-	return 0;
-}
-
-static inline void s3c2440_serial_exit(void)
-{
-}
-
-#define s3c2440_uart_inf_at NULL
-#endif /* CONFIG_CPU_S3C2440 */
-
-#if defined(CONFIG_CPU_S3C2412)
-
-static int s3c2412_serial_setsource(struct uart_port *port,
-				     struct s3c24xx_uart_clksrc *clk)
-{
-	unsigned long ucon = rd_regl(port, S3C2410_UCON);
-
-	ucon &= ~S3C2412_UCON_CLKMASK;
-
-	if (strcmp(clk->name, "uclk") == 0)
-		ucon |= S3C2440_UCON_UCLK;
-	else if (strcmp(clk->name, "pclk") == 0)
-		ucon |= S3C2440_UCON_PCLK;
-	else if (strcmp(clk->name, "usysclk") == 0)
-		ucon |= S3C2412_UCON_USYSCLK;
-	else {
-		printk(KERN_ERR "unknown clock source %s\n", clk->name);
-		return -EINVAL;
-	}
-
-	wr_regl(port, S3C2410_UCON, ucon);
-	return 0;
-}
-
-
-static int s3c2412_serial_getsource(struct uart_port *port,
-				    struct s3c24xx_uart_clksrc *clk)
-{
-	unsigned long ucon = rd_regl(port, S3C2410_UCON);
-
-	switch (ucon & S3C2412_UCON_CLKMASK) {
-	case S3C2412_UCON_UCLK:
-		clk->divisor = 1;
-		clk->name = "uclk";
-		break;
-
-	case S3C2412_UCON_PCLK:
-	case S3C2412_UCON_PCLK2:
-		clk->divisor = 1;
-		clk->name = "pclk";
-		break;
-
-	case S3C2412_UCON_USYSCLK:
-		clk->divisor = 1;
-		clk->name = "usysclk";
-		break;
-	}
-
-	return 0;
-}
-
-static int s3c2412_serial_resetport(struct uart_port *port,
-				    struct s3c2410_uartcfg *cfg)
-{
-	unsigned long ucon = rd_regl(port, S3C2410_UCON);
-
-	dbg("%s: port=%p (%08lx), cfg=%p\n",
-	    __func__, port, port->mapbase, cfg);
-
-	/* ensure we don't change the clock settings... */
-
-	ucon &= S3C2412_UCON_CLKMASK;
-
-	wr_regl(port, S3C2410_UCON,  ucon | cfg->ucon);
-	wr_regl(port, S3C2410_ULCON, cfg->ulcon);
-
-	/* reset both fifos */
-
-	wr_regl(port, S3C2410_UFCON, cfg->ufcon | S3C2410_UFCON_RESETBOTH);
-	wr_regl(port, S3C2410_UFCON, cfg->ufcon);
-
-	return 0;
-}
-
-static struct s3c24xx_uart_info s3c2412_uart_inf = {
-	.name		= "Samsung S3C2412 UART",
-	.type		= PORT_S3C2412,
-	.fifosize	= 64,
-	.rx_fifomask	= S3C2440_UFSTAT_RXMASK,
-	.rx_fifoshift	= S3C2440_UFSTAT_RXSHIFT,
-	.rx_fifofull	= S3C2440_UFSTAT_RXFULL,
-	.tx_fifofull	= S3C2440_UFSTAT_TXFULL,
-	.tx_fifomask	= S3C2440_UFSTAT_TXMASK,
-	.tx_fifoshift	= S3C2440_UFSTAT_TXSHIFT,
-	.get_clksrc	= s3c2412_serial_getsource,
-	.set_clksrc	= s3c2412_serial_setsource,
-	.reset_port	= s3c2412_serial_resetport,
-};
-
-/* device management */
-
-static int s3c2412_serial_probe(struct platform_device *dev)
-{
-	dbg("s3c2440_serial_probe: dev=%p\n", dev);
-	return s3c24xx_serial_probe(dev, &s3c2412_uart_inf);
-}
-
-static struct platform_driver s3c2412_serial_drv = {
-	.probe		= s3c2412_serial_probe,
-	.remove		= s3c24xx_serial_remove,
-	.suspend	= s3c24xx_serial_suspend,
-	.resume		= s3c24xx_serial_resume,
-	.driver		= {
-		.name	= "s3c2412-uart",
-		.owner	= THIS_MODULE,
-	},
-};
-
-
-static inline int s3c2412_serial_init(void)
-{
-	return s3c24xx_serial_init(&s3c2412_serial_drv, &s3c2412_uart_inf);
-}
-
-static inline void s3c2412_serial_exit(void)
-{
-	platform_driver_unregister(&s3c2412_serial_drv);
-}
-
-#define s3c2412_uart_inf_at &s3c2412_uart_inf
-#else
-
-static inline int s3c2412_serial_init(void)
-{
-	return 0;
-}
-
-static inline void s3c2412_serial_exit(void)
-{
-}
-
-#define s3c2412_uart_inf_at NULL
-#endif /* CONFIG_CPU_S3C2440 */
-
-
-/* module initialisation code */
-
-static int __init s3c24xx_serial_modinit(void)
-{
-	int ret;
-
-	ret = uart_register_driver(&s3c24xx_uart_drv);
-	if (ret < 0) {
-		printk(KERN_ERR "failed to register UART driver\n");
-		return -1;
-	}
-
-#ifdef CONFIG_CPU_S3C2400
-	s3c2400_serial_init();
-#endif
-	s3c2410_serial_init();
-	s3c2412_serial_init();
-	s3c2440_serial_init();
-
-	return 0;
-}
-
-static void __exit s3c24xx_serial_modexit(void)
-{
-#ifdef CONFIG_CPU_S3C2400
-	s3c2400_serial_exit();
-#endif
-	s3c2410_serial_exit();
-	s3c2412_serial_exit();
-	s3c2440_serial_exit();
-
-	uart_unregister_driver(&s3c24xx_uart_drv);
-}
-
-
-module_init(s3c24xx_serial_modinit);
-module_exit(s3c24xx_serial_modexit);
-
-/* Console code */
-
-#ifdef CONFIG_SERIAL_S3C2410_CONSOLE
-
-static struct uart_port *cons_uart;
-static int cons_silenced;
-
-void s3c24xx_serial_console_set_silence(int silenced)
-{
-	cons_silenced = silenced;
-}
-EXPORT_SYMBOL(s3c24xx_serial_console_set_silence);
-
-static int
-s3c24xx_serial_console_txrdy(struct uart_port *port, unsigned int ufcon)
-{
-	struct s3c24xx_uart_info *info = s3c24xx_port_to_info(port);
-	unsigned long ufstat, utrstat;
-
-	if (ufcon & S3C2410_UFCON_FIFOMODE) {
-		/* fifo mode - check ammount of data in fifo registers... */
-
-		ufstat = rd_regl(port, S3C2410_UFSTAT);
-		return (ufstat & info->tx_fifofull) ? 0 : 1;
-	}
-
-	/* in non-fifo mode, we go and use the tx buffer empty */
-
-	utrstat = rd_regl(port, S3C2410_UTRSTAT);
-	return (utrstat & S3C2410_UTRSTAT_TXE) ? 1 : 0;
-}
-
-static void
-s3c24xx_serial_console_putchar(struct uart_port *port, int ch)
-{
-	unsigned int ufcon = rd_regl(cons_uart, S3C2410_UFCON);
-	unsigned int umcon = rd_regl(cons_uart, S3C2410_UMCON);
-
-	if (cons_silenced)
-		return;
-
-	/* If auto HW flow control enabled, temporarily turn it off */
-	if (umcon & S3C2410_UMCOM_AFC)
-		wr_regl(port, S3C2410_UMCON, (umcon & !S3C2410_UMCOM_AFC));
-
-	while (!s3c24xx_serial_console_txrdy(port, ufcon))
-		barrier();
-	wr_regb(cons_uart, S3C2410_UTXH, ch);
-
-	if (umcon & S3C2410_UMCOM_AFC)
-		wr_regl(port, S3C2410_UMCON, umcon);
-}
-
-static void
-s3c24xx_serial_console_write(struct console *co, const char *s,
-			     unsigned int count)
-{
-	uart_console_write(cons_uart, s, count, s3c24xx_serial_console_putchar);
-}
-
-static void __init
-s3c24xx_serial_get_options(struct uart_port *port, int *baud,
-			   int *parity, int *bits)
-{
-	struct s3c24xx_uart_clksrc clksrc;
-	struct clk *clk;
-	unsigned int ulcon;
-	unsigned int ucon;
-	unsigned int ubrdiv;
-	unsigned long rate;
-
-	ulcon  = rd_regl(port, S3C2410_ULCON);
-	ucon   = rd_regl(port, S3C2410_UCON);
-	ubrdiv = rd_regl(port, S3C2410_UBRDIV);
-
-	dbg("s3c24xx_serial_get_options: port=%p\n"
-	    "registers: ulcon=%08x, ucon=%08x, ubdriv=%08x\n",
-	    port, ulcon, ucon, ubrdiv);
-
-	if ((ucon & 0xf) != 0) {
-		/* consider the serial port configured if the tx/rx mode set */
-
-		switch (ulcon & S3C2410_LCON_CSMASK) {
-		case S3C2410_LCON_CS5:
-			*bits = 5;
-			break;
-		case S3C2410_LCON_CS6:
-			*bits = 6;
-			break;
-		case S3C2410_LCON_CS7:
-			*bits = 7;
-			break;
-		default:
-		case S3C2410_LCON_CS8:
-			*bits = 8;
-			break;
-		}
-
-		switch (ulcon & S3C2410_LCON_PMASK) {
-		case S3C2410_LCON_PEVEN:
-			*parity = 'e';
-			break;
-
-		case S3C2410_LCON_PODD:
-			*parity = 'o';
-			break;
-
-		case S3C2410_LCON_PNONE:
-		default:
-			*parity = 'n';
-		}
-
-		/* now calculate the baud rate */
-
-		s3c24xx_serial_getsource(port, &clksrc);
-
-		clk = clk_get(port->dev, clksrc.name);
-		if (!IS_ERR(clk) && clk != NULL)
-			rate = clk_get_rate(clk) / clksrc.divisor;
-		else
-			rate = 1;
-
-
-		*baud = rate / ( 16 * (ubrdiv + 1));
-		dbg("calculated baud %d\n", *baud);
-	}
-
-}
-
-/* s3c24xx_serial_init_ports
- *
- * initialise the serial ports from the machine provided initialisation
- * data.
-*/
-
-static int s3c24xx_serial_init_ports(struct s3c24xx_uart_info *info)
-{
-	struct s3c24xx_uart_port *ptr = s3c24xx_serial_ports;
-	struct platform_device **platdev_ptr;
-	int i;
-
-	dbg("s3c24xx_serial_init_ports: initialising ports...\n");
-
-	platdev_ptr = s3c24xx_uart_devs;
-
-	for (i = 0; i < NR_PORTS; i++, ptr++, platdev_ptr++) {
-		s3c24xx_serial_init_port(ptr, info, *platdev_ptr);
-	}
-
-	return 0;
-}
-
-static int __init
-s3c24xx_serial_console_setup(struct console *co, char *options)
-{
-	struct uart_port *port;
-	int baud = 9600;
-	int bits = 8;
-	int parity = 'n';
-	int flow = 'n';
-
-	dbg("s3c24xx_serial_console_setup: co=%p (%d), %s\n",
-	    co, co->index, options);
-
-	/* is this a valid port */
-
-	if (co->index == -1 || co->index >= NR_PORTS)
-		co->index = 0;
-
-	port = &s3c24xx_serial_ports[co->index].port;
-
-	/* is the port configured? */
-
-	if (port->mapbase == 0x0) {
-		co->index = 0;
-		port = &s3c24xx_serial_ports[co->index].port;
-	}
-
-	cons_uart = port;
-
-	dbg("s3c24xx_serial_console_setup: port=%p (%d)\n", port, co->index);
-
-	/*
-	 * Check whether an invalid uart number has been specified, and
-	 * if so, search for the first available port that does have
-	 * console support.
-	 */
-	if (options)
-		uart_parse_options(options, &baud, &parity, &bits, &flow);
-	else
-		s3c24xx_serial_get_options(port, &baud, &parity, &bits);
-
-	dbg("s3c24xx_serial_console_setup: baud %d\n", baud);
-
-	return uart_set_options(port, co, baud, parity, bits, flow);
-}
-
-/* s3c24xx_serial_initconsole
- *
- * initialise the console from one of the uart drivers
-*/
-
-static struct console s3c24xx_serial_console =
-{
-	.name		= S3C24XX_SERIAL_NAME,
-	.device		= uart_console_device,
-	.flags		= CON_PRINTBUFFER,
-	.index		= -1,
-	.write		= s3c24xx_serial_console_write,
-	.setup		= s3c24xx_serial_console_setup
-};
-
-static int s3c24xx_serial_initconsole(void)
-{
-	struct s3c24xx_uart_info *info;
-	struct platform_device *dev = s3c24xx_uart_devs[0];
-
-	dbg("s3c24xx_serial_initconsole\n");
-
-	/* select driver based on the cpu */
-
-	if (dev == NULL) {
-		printk(KERN_ERR "s3c24xx: no devices for console init\n");
-		return 0;
-	}
-
-	if (strcmp(dev->name, "s3c2400-uart") == 0) {
-		info = s3c2400_uart_inf_at;
-	} else if (strcmp(dev->name, "s3c2410-uart") == 0) {
-		info = s3c2410_uart_inf_at;
-	} else if (strcmp(dev->name, "s3c2440-uart") == 0) {
-		info = s3c2440_uart_inf_at;
-	} else if (strcmp(dev->name, "s3c2412-uart") == 0) {
-		info = s3c2412_uart_inf_at;
-	} else {
-		printk(KERN_ERR "s3c24xx: no driver for %s\n", dev->name);
-		return 0;
-	}
-
-	if (info == NULL) {
-		printk(KERN_ERR "s3c24xx: no driver for console\n");
-		return 0;
-	}
-
-	s3c24xx_serial_console.data = &s3c24xx_uart_drv;
-	s3c24xx_serial_init_ports(info);
-
-	register_console(&s3c24xx_serial_console);
-	return 0;
-}
-
-console_initcall(s3c24xx_serial_initconsole);
-
-#endif /* CONFIG_SERIAL_S3C2410_CONSOLE */
-
 MODULE_LICENSE("GPL v2");
 MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");
 MODULE_DESCRIPTION("Samsung S3C2410 SoC Serial port driver");