amazon: R.I.P.
[openwrt/svn-archive/archive.git] / target / linux / amazon / files / drivers / tty / serial / amazon_asc.c
diff --git a/target/linux/amazon/files/drivers/tty/serial/amazon_asc.c b/target/linux/amazon/files/drivers/tty/serial/amazon_asc.c
deleted file mode 100644 (file)
index bb2dd72..0000000
+++ /dev/null
@@ -1,711 +0,0 @@
-/*
- *  Driver for AMAZONASC serial ports
- *
- *  Based on drivers/char/serial.c, by Linus Torvalds, Theodore Ts'o.
- *  Based on drivers/serial/serial_s3c2400.c
- *
- * 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 of the License, or
- * (at your option) any later version.
- *
- * 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, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- *
- * Copyright (C) 2004 Infineon IFAP DC COM CPE
- * Copyright (C) 2007 Felix Fietkau <nbd@openwrt.org>
- * Copyright (C) 2007 John Crispin <blogic@openwrt.org>
- */
-
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/interrupt.h>
-#include <linux/tty.h>
-#include <linux/tty_flip.h>
-#include <linux/major.h>
-#include <linux/string.h>
-#include <linux/fcntl.h>
-#include <linux/ptrace.h>
-#include <linux/ioport.h>
-#include <linux/mm.h>
-#include <linux/slab.h>
-#include <linux/init.h>
-#include <linux/circ_buf.h>
-#include <linux/serial.h>
-#include <linux/serial_core.h>
-#include <linux/console.h>
-#include <linux/sysrq.h>
-#include <linux/irq.h>
-#include <linux/platform_device.h>
-
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/uaccess.h>
-#include <asm/bitops.h>
-#include <asm/amazon/amazon.h>
-#include <asm/amazon/irq.h>
-#include <asm/amazon/serial.h>
-
-#define PORT_AMAZONASC  111
-
-#include <linux/serial_core.h>
-
-#define UART_NR                1
-
-#define UART_DUMMY_UER_RX 1
-
-#define SERIAL_AMAZONASC_MAJOR TTY_MAJOR
-#define CALLOUT_AMAZONASC_MAJOR        TTYAUX_MAJOR
-#define SERIAL_AMAZONASC_MINOR 64
-#define SERIAL_AMAZONASC_NR    UART_NR
-
-static void amazonasc_tx_chars(struct uart_port *port);
-static struct uart_port amazonasc_ports[UART_NR];
-static struct uart_driver amazonasc_reg;
-static unsigned int uartclk = 0;
-
-static void amazonasc_stop_tx(struct uart_port *port)
-{
-       /* fifo underrun shuts up after firing once */
-       return;
-}
-
-static void amazonasc_start_tx(struct uart_port *port)
-{
-       unsigned long flags;
-
-       local_irq_save(flags);
-       amazonasc_tx_chars(port);
-       local_irq_restore(flags);
-
-       return;
-}
-
-static void amazonasc_stop_rx(struct uart_port *port)
-{
-       /* clear the RX enable bit */
-       amazon_writel(ASCWHBCON_CLRREN, AMAZON_ASC_WHBCON);
-}
-
-static void amazonasc_enable_ms(struct uart_port *port)
-{
-       /* no modem signals */
-       return;
-}
-
-#include <linux/version.h>
-
-static void
-amazonasc_rx_chars(struct uart_port *port)
-{
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 31))
-       struct tty_struct *tty = port->state->port.tty;
-#else
-       struct tty_struct *tty = port->info->port.tty;
-#endif
-       unsigned int ch = 0, rsr = 0, fifocnt;
-
-       fifocnt = amazon_readl(AMAZON_ASC_FSTAT) & ASCFSTAT_RXFFLMASK;
-       while (fifocnt--)
-       {
-               u8 flag = TTY_NORMAL;
-               ch = amazon_readl(AMAZON_ASC_RBUF);
-               rsr = (amazon_readl(AMAZON_ASC_CON) & ASCCON_ANY) | UART_DUMMY_UER_RX;
-               tty_flip_buffer_push(tty);
-               port->icount.rx++;
-
-               /*
-                * Note that the error handling code is
-                * out of the main execution path
-                */
-               if (rsr & ASCCON_ANY) {
-                       if (rsr & ASCCON_PE) {
-                               port->icount.parity++;
-                               amazon_writel_masked(AMAZON_ASC_WHBCON, ASCWHBCON_CLRPE, ASCWHBCON_CLRPE);
-                       } else if (rsr & ASCCON_FE) {
-                               port->icount.frame++;
-                               amazon_writel_masked(AMAZON_ASC_WHBCON, ASCWHBCON_CLRFE, ASCWHBCON_CLRFE);
-                       }
-                       if (rsr & ASCCON_OE) {
-                               port->icount.overrun++;
-                               amazon_writel_masked(AMAZON_ASC_WHBCON, ASCWHBCON_CLROE, ASCWHBCON_CLROE);
-                       }
-
-                       rsr &= port->read_status_mask;
-
-                       if (rsr & ASCCON_PE)
-                               flag = TTY_PARITY;
-                       else if (rsr & ASCCON_FE)
-                               flag = TTY_FRAME;
-               }
-
-               if ((rsr & port->ignore_status_mask) == 0)
-                       tty_insert_flip_char(tty, ch, flag);
-
-               if (rsr & ASCCON_OE)
-                       /*
-                        * Overrun is special, since it's reported
-                        * immediately, and doesn't affect the current
-                        * character
-                        */
-                       tty_insert_flip_char(tty, 0, TTY_OVERRUN);
-       }
-       if (ch != 0)
-               tty_flip_buffer_push(tty);
-
-       return;
-}
-
-
-static void amazonasc_tx_chars(struct uart_port *port)
-{
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 31))
-       struct circ_buf *xmit = &port->state->xmit;
-#else
-       struct circ_buf *xmit = &port->info->xmit;
-#endif
-
-       if (uart_tx_stopped(port)) {
-               amazonasc_stop_tx(port);
-               return;
-       }
-       
-       while (((amazon_readl(AMAZON_ASC_FSTAT) & ASCFSTAT_TXFFLMASK)
-                       >> ASCFSTAT_TXFFLOFF) != AMAZONASC_TXFIFO_FULL)
-       {
-               if (port->x_char) {
-                       amazon_writel(port->x_char, AMAZON_ASC_TBUF);
-                       port->icount.tx++;
-                       port->x_char = 0;
-                       continue;
-               }
-
-               if (uart_circ_empty(xmit))
-                       break;
-
-               amazon_writel(xmit->buf[xmit->tail], AMAZON_ASC_TBUF);
-               xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
-               port->icount.tx++;
-       }
-
-       if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
-               uart_write_wakeup(port);
-}
-
-static irqreturn_t amazonasc_tx_int(int irq, void *port)
-{
-       amazon_writel(ASC_IRNCR_TIR, AMAZON_ASC_IRNCR1);
-       amazonasc_start_tx(port);
-
-       /* clear any pending interrupts */
-       amazon_writel_masked(AMAZON_ASC_WHBCON, 
-                       (ASCWHBCON_CLRPE | ASCWHBCON_CLRFE | ASCWHBCON_CLROE), 
-                       (ASCWHBCON_CLRPE | ASCWHBCON_CLRFE | ASCWHBCON_CLROE));
-
-       return IRQ_HANDLED;
-}
-
-static irqreturn_t amazonasc_er_int(int irq, void *port)
-{
-       /* clear any pending interrupts */
-       amazon_writel_masked(AMAZON_ASC_WHBCON, 
-                       (ASCWHBCON_CLRPE | ASCWHBCON_CLRFE | ASCWHBCON_CLROE), 
-                       (ASCWHBCON_CLRPE | ASCWHBCON_CLRFE | ASCWHBCON_CLROE));
-       
-       return IRQ_HANDLED;
-}
-
-static irqreturn_t amazonasc_rx_int(int irq, void *port)
-{
-       amazon_writel(ASC_IRNCR_RIR, AMAZON_ASC_IRNCR1);
-       amazonasc_rx_chars((struct uart_port *) port);
-       return IRQ_HANDLED;
-}
-
-static u_int amazonasc_tx_empty(struct uart_port *port)
-{
-       int status;
-
-       /*
-        * FSTAT tells exactly how many bytes are in the FIFO.
-        * The question is whether we really need to wait for all
-        * 16 bytes to be transmitted before reporting that the
-        * transmitter is empty.
-        */
-       status = amazon_readl(AMAZON_ASC_FSTAT) & ASCFSTAT_TXFFLMASK;
-       return status ? 0 : TIOCSER_TEMT;
-}
-
-static u_int amazonasc_get_mctrl(struct uart_port *port)
-{
-       /* no modem control signals - the readme says to pretend all are set */
-       return TIOCM_CTS|TIOCM_CAR|TIOCM_DSR;
-}
-
-static void amazonasc_set_mctrl(struct uart_port *port, u_int mctrl)
-{
-       /* no modem control - just return */
-       return;
-}
-
-static void amazonasc_break_ctl(struct uart_port *port, int break_state)
-{
-       /* no way to send a break */
-       return;
-}
-
-static int amazonasc_startup(struct uart_port *port)
-{
-       unsigned int con = 0;
-       unsigned long flags;
-       int retval;
-
-       /* this assumes: CON.BRS = CON.FDE = 0 */
-       if (uartclk == 0)
-               uartclk = amazon_get_fpi_hz();
-
-       amazonasc_ports[0].uartclk = uartclk;
-
-       local_irq_save(flags);
-
-       /* this setup was probably already done in u-boot */
-       /* ASC and GPIO Port 1 bits 3 and 4 share the same pins
-        * P1.3 (RX) in, Alternate 10
-        * P1.4 (TX) in, Alternate 10
-        */
-        amazon_writel_masked(AMAZON_GPIO_P1_DIR, 0x18, 0x10);  //P1.4 output, P1.3 input
-        amazon_writel_masked(AMAZON_GPIO_P1_ALTSEL0, 0x18, 0x18);              //ALTSETL0 11
-        amazon_writel_masked(AMAZON_GPIO_P1_ALTSEL1, 0x18, 0);         //ALTSETL1 00
-        amazon_writel_masked(AMAZON_GPIO_P1_OD, 0x18, 0x10);
-       
-       /* set up the CLC */
-       amazon_writel_masked(AMAZON_ASC_CLC, AMAZON_ASC_CLC_DISS, 0);
-       amazon_writel_masked(AMAZON_ASC_CLC, ASCCLC_RMCMASK, 1 << ASCCLC_RMCOFFSET);
-       
-       /* asynchronous mode */
-       con = ASCCON_M_8ASYNC | ASCCON_FEN | ASCCON_OEN | ASCCON_PEN;
-       
-       /* choose the line - there's only one */
-       amazon_writel(0, AMAZON_ASC_PISEL);
-       amazon_writel(((AMAZONASC_TXFIFO_FL << ASCTXFCON_TXFITLOFF) & ASCTXFCON_TXFITLMASK) | ASCTXFCON_TXFEN | ASCTXFCON_TXFFLU, 
-               AMAZON_ASC_TXFCON);
-       amazon_writel(((AMAZONASC_RXFIFO_FL << ASCRXFCON_RXFITLOFF) & ASCRXFCON_RXFITLMASK) | ASCRXFCON_RXFEN | ASCRXFCON_RXFFLU, 
-               AMAZON_ASC_RXFCON);
-       wmb();
-       
-       amazon_writel_masked(AMAZON_ASC_CON, con, con);
-
-       retval = request_irq(AMAZONASC_RIR, amazonasc_rx_int, 0, "asc_rx", port);
-       if (retval){
-               printk("failed to request amazonasc_rx_int\n");
-               return retval;
-       }
-       retval = request_irq(AMAZONASC_TIR, amazonasc_tx_int, 0, "asc_tx", port);
-       if (retval){
-               printk("failed to request amazonasc_tx_int\n");
-               goto err1;
-       }
-
-       retval = request_irq(AMAZONASC_EIR, amazonasc_er_int, 0, "asc_er", port);
-       if (retval){
-               printk("failed to request amazonasc_er_int\n");
-               goto err2;
-       }
-       
-       local_irq_restore(flags);
-       return 0;
-
-err2:
-       free_irq(AMAZONASC_TIR, port);
-       
-err1:
-       free_irq(AMAZONASC_RIR, port);
-       local_irq_restore(flags);
-       return retval;
-}
-
-static void amazonasc_shutdown(struct uart_port *port)
-{
-       free_irq(AMAZONASC_RIR, port);
-       free_irq(AMAZONASC_TIR, port);
-       free_irq(AMAZONASC_EIR, port);
-       /*
-        * disable the baudrate generator to disable the ASC
-        */
-       amazon_writel(0, AMAZON_ASC_CON);
-
-       /* flush and then disable the fifos */
-       amazon_writel_masked(AMAZON_ASC_RXFCON, ASCRXFCON_RXFFLU, ASCRXFCON_RXFFLU);
-       amazon_writel_masked(AMAZON_ASC_RXFCON, ASCRXFCON_RXFEN, 0);
-       amazon_writel_masked(AMAZON_ASC_TXFCON, ASCTXFCON_TXFFLU, ASCTXFCON_TXFFLU);
-       amazon_writel_masked(AMAZON_ASC_TXFCON, ASCTXFCON_TXFEN, 0);
-}
-
-static void amazonasc_set_termios(struct uart_port *port, struct ktermios *new, struct ktermios *old)
-{
-       unsigned int cflag;
-       unsigned int iflag;
-       unsigned int baud, quot;
-       unsigned int con = 0;
-       unsigned long flags;
-
-       cflag = new->c_cflag;
-       iflag = new->c_iflag;
-
-       /* byte size and parity */
-       switch (cflag & CSIZE) {
-       /* 7 bits are always with parity */
-       case CS7: con = ASCCON_M_7ASYNCPAR; break;
-       /* the ASC only suports 7 and 8 bits */
-       case CS5:
-       case CS6:
-       default:
-               if (cflag & PARENB)
-                       con = ASCCON_M_8ASYNCPAR;
-               else
-                       con = ASCCON_M_8ASYNC;
-               break;
-       }
-       if (cflag & CSTOPB)
-               con |= ASCCON_STP;
-       if (cflag & PARENB) {
-               if (!(cflag & PARODD))
-                       con &= ~ASCCON_ODD;
-               else
-                       con |= ASCCON_ODD;
-       }
-
-       port->read_status_mask = ASCCON_OE;
-       if (iflag & INPCK)
-               port->read_status_mask |= ASCCON_FE | ASCCON_PE;
-       
-       port->ignore_status_mask = 0;
-       if (iflag & IGNPAR)
-               port->ignore_status_mask |= ASCCON_FE | ASCCON_PE;
-       
-       if (iflag & IGNBRK) {
-               /*
-                * If we're ignoring parity and break indicators,
-                * ignore overruns too (for real raw support).
-                */
-               if (iflag & IGNPAR)
-                       port->ignore_status_mask |= ASCCON_OE;
-       }
-
-       /*
-        * Ignore all characters if CREAD is not set.
-        */
-       if ((cflag & CREAD) == 0)
-               port->ignore_status_mask |= UART_DUMMY_UER_RX;
-
-       /* set error signals  - framing, parity  and overrun */
-       con |= ASCCON_FEN;
-       con |= ASCCON_OEN;
-       con |= ASCCON_PEN;
-       /* enable the receiver */
-       con |= ASCCON_REN;
-
-       /* block the IRQs */
-       local_irq_save(flags);
-
-       /* set up CON */
-       amazon_writel(con, AMAZON_ASC_CON);
-
-       /* Set baud rate - take a divider of 2 into account */
-    baud = uart_get_baud_rate(port, new, old, 0, port->uartclk/16);
-       quot = uart_get_divisor(port, baud);
-       quot = quot/2 - 1;
-
-       /* the next 3 probably already happened when we set CON above */
-       /* disable the baudrate generator */
-       amazon_writel_masked(AMAZON_ASC_CON, ASCCON_R, 0);
-       /* make sure the fractional divider is off */
-       amazon_writel_masked(AMAZON_ASC_CON, ASCCON_FDE, 0);
-       /* set up to use divisor of 2 */
-       amazon_writel_masked(AMAZON_ASC_CON, ASCCON_BRS, 0);
-       /* now we can write the new baudrate into the register */
-       amazon_writel(quot, AMAZON_ASC_BTR);
-       /* turn the baudrate generator back on */
-       amazon_writel_masked(AMAZON_ASC_CON, ASCCON_R, ASCCON_R);
-
-       local_irq_restore(flags);
-}
-
-static const char *amazonasc_type(struct uart_port *port)
-{
-       return port->type == PORT_AMAZONASC ? "AMAZONASC" : NULL;
-}
-
-/*
- * Release the memory region(s) being used by 'port'
- */
-static void amazonasc_release_port(struct uart_port *port)
-{
-       return;
-}
-
-/*
- * Request the memory region(s) being used by 'port'
- */
-static int amazonasc_request_port(struct uart_port *port)
-{
-       return 0;
-}
-
-/*
- * Configure/autoconfigure the port.
- */
-static void amazonasc_config_port(struct uart_port *port, int flags)
-{
-       if (flags & UART_CONFIG_TYPE) {
-               port->type = PORT_AMAZONASC;
-               amazonasc_request_port(port);
-       }
-}
-
-/*
- * verify the new serial_struct (for TIOCSSERIAL).
- */
-static int amazonasc_verify_port(struct uart_port *port, struct serial_struct *ser)
-{
-       int ret = 0;
-       if (ser->type != PORT_UNKNOWN && ser->type != PORT_AMAZONASC)
-               ret = -EINVAL;
-       if (ser->irq < 0 || ser->irq >= NR_IRQS)
-               ret = -EINVAL;
-       if (ser->baud_base < 9600)
-               ret = -EINVAL;
-       return ret;
-}
-
-static struct uart_ops amazonasc_pops = {
-       .tx_empty =             amazonasc_tx_empty,
-       .set_mctrl =    amazonasc_set_mctrl,
-       .get_mctrl =    amazonasc_get_mctrl,
-       .stop_tx =              amazonasc_stop_tx,
-       .start_tx =             amazonasc_start_tx,
-       .stop_rx =              amazonasc_stop_rx,
-       .enable_ms =    amazonasc_enable_ms,
-       .break_ctl =    amazonasc_break_ctl,
-       .startup =              amazonasc_startup,
-       .shutdown =             amazonasc_shutdown,
-       .set_termios =  amazonasc_set_termios,
-       .type =                 amazonasc_type,
-       .release_port = amazonasc_release_port,
-       .request_port = amazonasc_request_port,
-       .config_port =  amazonasc_config_port,
-       .verify_port =  amazonasc_verify_port,
-};
-
-static struct uart_port amazonasc_ports[UART_NR] = {
-       {
-               membase:        (void *)AMAZON_ASC,
-               mapbase:        AMAZON_ASC,
-               iotype:         SERIAL_IO_MEM,
-               irq:            AMAZONASC_RIR, /* RIR */
-               uartclk:        0, /* filled in dynamically */
-               fifosize:       16,
-               unused:         { AMAZONASC_TIR, AMAZONASC_EIR}, /* xmit/error/xmit-buffer-empty IRQ */
-               type:           PORT_AMAZONASC,
-               ops:            &amazonasc_pops,
-               flags:          ASYNC_BOOT_AUTOCONF,
-       },
-};
-
-static void amazonasc_console_write(struct console *co, const char *s, u_int count)
-{
-       int i, fifocnt;
-       unsigned long flags;
-       local_irq_save(flags);
-       for (i = 0; i < count;)
-       {
-               /* wait until the FIFO is not full */
-               do
-               {
-                       fifocnt = (amazon_readl(AMAZON_ASC_FSTAT) & ASCFSTAT_TXFFLMASK)
-                                       >> ASCFSTAT_TXFFLOFF;
-               } while (fifocnt == AMAZONASC_TXFIFO_FULL);
-               if (s[i] == '\0')
-               {
-                       break;
-               }
-               if (s[i] == '\n')
-               {
-                       amazon_writel('\r', AMAZON_ASC_TBUF);
-                       do
-                       {
-                               fifocnt = (amazon_readl(AMAZON_ASC_FSTAT) &
-                               ASCFSTAT_TXFFLMASK) >> ASCFSTAT_TXFFLOFF;
-                       } while (fifocnt == AMAZONASC_TXFIFO_FULL);
-               }
-               amazon_writel(s[i], AMAZON_ASC_TBUF);
-               i++;
-       } 
-
-       local_irq_restore(flags);
-}
-
-static void __init
-amazonasc_console_get_options(struct uart_port *port, int *baud, int *parity, int *bits)
-{
-       u_int lcr_h;
-
-       lcr_h = amazon_readl(AMAZON_ASC_CON);
-       /* do this only if the ASC is turned on */
-       if (lcr_h & ASCCON_R) {
-               u_int quot, div, fdiv, frac;
-
-               *parity = 'n';
-               if ((lcr_h & ASCCON_MODEMASK) == ASCCON_M_7ASYNCPAR ||
-                           (lcr_h & ASCCON_MODEMASK) == ASCCON_M_8ASYNCPAR) {
-                       if (lcr_h & ASCCON_ODD)
-                               *parity = 'o';
-                       else
-                               *parity = 'e';
-               }
-
-               if ((lcr_h & ASCCON_MODEMASK) == ASCCON_M_7ASYNCPAR)
-                       *bits = 7;
-               else
-                       *bits = 8;
-
-               quot = amazon_readl(AMAZON_ASC_BTR) + 1;
-               
-               /* this gets hairy if the fractional divider is used */
-               if (lcr_h & ASCCON_FDE)
-               {
-                       div = 1;
-                       fdiv = amazon_readl(AMAZON_ASC_FDV);
-                       if (fdiv == 0)
-                               fdiv = 512;
-                       frac = 512;
-               }
-               else
-               {
-                       div = lcr_h & ASCCON_BRS ? 3 : 2;
-                       fdiv = frac = 1;
-               }
-               /*
-                * This doesn't work exactly because we use integer
-                * math to calculate baud which results in rounding
-                * errors when we try to go from quot -> baud !!
-                * Try to make this work for both the fractional divider
-                * and the simple divider. Also try to avoid rounding
-                * errors using integer math.
-                */
-               
-               *baud = frac * (port->uartclk / (div * 512 * 16 * quot));
-               if (*baud > 1100 && *baud < 2400)
-                       *baud = 1200;
-               if (*baud > 2300 && *baud < 4800)
-                       *baud = 2400;
-               if (*baud > 4700 && *baud < 9600)
-                       *baud = 4800;
-               if (*baud > 9500 && *baud < 19200)
-                       *baud = 9600;
-               if (*baud > 19000 && *baud < 38400)
-                       *baud = 19200;
-               if (*baud > 38400 && *baud < 57600)
-                       *baud = 38400;
-               if (*baud > 57600 && *baud < 115200)
-                       *baud = 57600;
-               if (*baud > 115200 && *baud < 230400)
-                       *baud = 115200;
-       }
-}
-
-static int __init amazonasc_console_setup(struct console *co, char *options)
-{
-       struct uart_port *port;
-       int baud = 115200;
-       int bits = 8;
-       int parity = 'n';
-       int flow = 'n';
-
-       /* this assumes: CON.BRS = CON.FDE = 0 */
-       if (uartclk == 0)
-               uartclk = amazon_get_fpi_hz();
-       co->index = 0;  
-       port = &amazonasc_ports[0];
-       amazonasc_ports[0].uartclk = uartclk;
-       amazonasc_ports[0].type = PORT_AMAZONASC;
-
-       if (options){
-               uart_parse_options(options, &baud, &parity, &bits, &flow);
-       }
-
-       return uart_set_options(port, co, baud, parity, bits, flow);
-}
-
-static struct uart_driver amazonasc_reg;
-static struct console amazonasc_console = {
-       name:           "ttyS",
-       write:          amazonasc_console_write,
-       device:         uart_console_device,
-       setup:          amazonasc_console_setup,
-       flags:          CON_PRINTBUFFER,
-       index:          -1,
-       data:           &amazonasc_reg,
-};
-
-static struct uart_driver amazonasc_reg = {
-       .owner =                        THIS_MODULE,
-       .driver_name =          "serial",
-       .dev_name =                     "ttyS",
-       .major =                        TTY_MAJOR,
-       .minor =                        64,
-       .nr =                           UART_NR,
-       .cons =                         &amazonasc_console,
-};
-
-static int amazon_asc_probe(struct platform_device *dev)
-{
-       unsigned char res;
-       uart_register_driver(&amazonasc_reg);
-       res = uart_add_one_port(&amazonasc_reg, &amazonasc_ports[0]);
-       return res;
-}
-
-static int amazon_asc_remove(struct platform_device *dev)
-{
-       uart_unregister_driver(&amazonasc_reg);
-       return 0;
-}
-
-static struct platform_driver amazon_asc_driver = {
-       .probe = amazon_asc_probe,
-       .remove = amazon_asc_remove,
-       .driver = {
-               .name = "amazon_asc",
-               .owner = THIS_MODULE,
-       },
-};
-
-static int __init amazon_asc_init(void)
-{
-       int ret = platform_driver_register(&amazon_asc_driver);
-       if (ret)
-               printk(KERN_WARNING "amazon_asc: error registering platfom driver!\n");
-       return ret;
-}
-
-static void __exit amazon_asc_cleanup(void)
-{
-       platform_driver_unregister(&amazon_asc_driver);
-}
-
-module_init(amazon_asc_init);
-module_exit(amazon_asc_cleanup);
-
-MODULE_AUTHOR("Gary Jennejohn, Felix Fietkau, John Crispin");
-MODULE_DESCRIPTION("MIPS AMAZONASC serial port driver");
-MODULE_LICENSE("GPL");
-