powerpc: Remove arch/ppc and include/asm-ppc

All the maintained platforms are now in arch/powerpc, so the old
arch/ppc stuff can now go away.

Acked-by: Adrian Bunk <bunk@kernel.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Becky Bruce <becky.bruce@freescale.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Jochen Friedrich <jochen@scram.de>
Acked-by: John Linn <john.linn@xilinx.com>
Acked-by: Jon Loeliger <jdl@freescale.com>
Acked-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Olof Johansson <olof@lixom.net>
Acked-by: Peter Korsgaard <jacmet@sunsite.dk>
Acked-by: Scott Wood <scottwood@freescale.com>
Acked-by: Sean MacLennan <smaclennan@pikatech.com>
Acked-by: Segher Boessenkool <segher@kernel.crashing.org>
Acked-by: Stefan Roese <sr@denx.de>
Acked-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com>
Acked-by: Wolfgang Denk <wd@denx.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>

2 files changed, 0 insertions, 2011 deletions

diff --git a/arch/ppc/4xx_io/Makefile b/arch/ppc/4xx_io/Makefile
deleted file mode 100644
index 6a8cd575f38..00000000000
--- a/arch/ppc/4xx_io/Makefile
+++ /dev/null
@@ -1,6 +0,0 @@
-#
-# Makefile for the linux MPC4xx ppc-specific parts
-#
-
-
-obj-$(CONFIG_SERIAL_SICC)		+= serial_sicc.o
diff --git a/arch/ppc/4xx_io/serial_sicc.c b/arch/ppc/4xx_io/serial_sicc.c
deleted file mode 100644
index efa0a56e230..00000000000
--- a/arch/ppc/4xx_io/serial_sicc.c
+++ /dev/null
@@ -1,2005 +0,0 @@
-/*
- *  Driver for IBM STB3xxx SICC serial port
- *
- *  Based on drivers/char/serial_amba.c, by ARM Ltd.
- *
- *  Copyright 2001 IBM Corp.
- *  Author: IBM China Research Lab
- *            Yudong Yang <yangyud@cn.ibm.com>
- *            Yi Ge       <geyi@cn.ibm.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 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
- *
- *
- * This is a driver for SICC serial port on IBM Redwood 4 evaluation board.
- * The driver support both as a console device and normal serial device and
- * is compatible with normal ttyS* devices.
- */
-
-#include <linux/module.h>
-#include <linux/kernel.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/capability.h>
-#include <linux/circ_buf.h>
-#include <linux/serial.h>
-#include <linux/console.h>
-#include <linux/sysrq.h>
-#include <linux/bitops.h>
-
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/uaccess.h>
-#include <asm/serial.h>
-
-
-#include <linux/serialP.h>
-
-
-/* -----------------------------------------------------------------------------
- *  From STB03xxx SICC UART Specification
- * -----------------------------------------------------------------------------
- *  UART Register Offsets.
- */
-
-#define BL_SICC_LSR   0x0000000      /* line status register read/clear */
-#define BL_SICC_LSRS  0x0000001      /* set line status register read/set */
-#define BL_SICC_HSR   0x0000002      /* handshake status register r/clear */
-#define BL_SICC_HSRS  0x0000003      /* set handshake status register r/set */
-#define BL_SICC_BRDH  0x0000004      /* baudrate divisor high reg r/w */
-#define BL_SICC_BRDL  0x0000005      /* baudrate divisor low reg r/w */
-#define BL_SICC_LCR   0x0000006      /* control register r/w */
-#define BL_SICC_RCR   0x0000007      /* receiver command register r/w */
-#define BL_SICC_TxCR  0x0000008      /* transmitter command register r/w */
-#define BL_SICC_RBR   0x0000009      /* receive buffer r */
-#define BL_SICC_TBR   0x0000009      /* transmit buffer w */
-#define BL_SICC_CTL2  0x000000A      /* added for Vesta */
-#define BL_SICC_IrCR  0x000000B      /* added for Vesta IR */
-
-/* masks and definitions for serial port control register */
-
-#define _LCR_LM_MASK  0xc0            /* loop back modes */
-#define _LCR_DTR_MASK 0x20            /* data terminal ready 0-inactive */
-#define _LCR_RTS_MASK 0x10            /* request to send 0-inactive */
-#define _LCR_DB_MASK  0x08            /* data bits mask */
-#define _LCR_PE_MASK  0x04            /* parity enable */
-#define _LCR_PTY_MASK 0x02            /* parity */
-#define _LCR_SB_MASK  0x01            /* stop bit mask */
-
-#define _LCR_LM_NORM  0x00            /* normal operation */
-#define _LCR_LM_LOOP  0x40            /* internal loopback mode */
-#define _LCR_LM_ECHO  0x80            /* automatic echo mode */
-#define _LCR_LM_RES   0xc0            /* reserved */
-
-#define _LCR_DTR_ACTIVE       _LCR_DTR_MASK /* DTR is active */
-#define _LCR_RTS_ACTIVE       _LCR_RTS_MASK /* RTS is active */
-#define _LCR_DB_8_BITS        _LCR_DB_MASK  /*  8 data bits */
-#define _LCR_DB_7_BITS        0x00          /*  7 data bits */
-#define _LCR_PE_ENABLE        _LCR_PE_MASK  /* parity enabled */
-#define _LCR_PE_DISABLE       0x00          /* parity disabled */
-#define _LCR_PTY_EVEN         0x00          /* even parity */
-#define _LCR_PTY_ODD          _LCR_PTY_MASK /* odd parity */
-#define _LCR_SB_1_BIT         0x00          /* one stop bit */
-#define _LCR_SB_2_BIT         _LCR_SB_MASK  /* two stop bit */
-
-/* serial port handshake register */
-
-#define _HSR_DIS_MASK  0x80            /* DSR input inactive error mask */
-#define _HSR_CS_MASK   0x40            /* CTS input inactive error mask */
-#define _HSR_DIS_ACT   0x00            /* dsr input is active */
-#define _HSR_DIS_INACT _HSR_DIS_MASK   /* dsr input is inactive */
-#define _HSR_CS_ACT    0x00            /* cts input is active */
-#define _HSR_CS_INACT  _HSR_CS_MASK    /* cts input is active */
-
-/* serial port line status register */
-
-#define _LSR_RBR_MASK  0x80            /* receive buffer ready mask */
-#define _LSR_FE_MASK   0x40            /* framing error */
-#define _LSR_OE_MASK   0x20            /* overrun error */
-#define _LSR_PE_MASK   0x10            /* parity error */
-#define _LSR_LB_MASK   0x08            /* line break */
-#define _LSR_TBR_MASK  0x04            /* transmit buffer ready */
-#define _LSR_TSR_MASK  0x02            /* transmit shift register ready */
-
-#define _LSR_RBR_FULL  _LSR_RBR_MASK  /* receive buffer is full */
-#define _LSR_FE_ERROR  _LSR_FE_MASK   /* framing error detected */
-#define _LSR_OE_ERROR  _LSR_OE_MASK   /* overrun error detected */
-#define _LSR_PE_ERROR  _LSR_PE_MASK   /* parity error detected */
-#define _LSR_LB_BREAK  _LSR_LB_MASK   /* line break detected */
-#define _LSR_TBR_EMPTY _LSR_TBR_MASK  /* transmit buffer is ready */
-#define _LSR_TSR_EMPTY _LSR_TSR_MASK  /* transmit shift register is empty */
-#define _LSR_TX_ALL    0x06           /* all physical transmit is done */
-
-#define _LSR_RX_ERR    (_LSR_LB_BREAK | _LSR_FE_MASK | _LSR_OE_MASK | \
-			 _LSR_PE_MASK )
-
-/* serial port receiver command register */
-
-#define _RCR_ER_MASK   0x80           /* enable receiver mask */
-#define _RCR_DME_MASK  0x60           /* dma mode */
-#define _RCR_EIE_MASK  0x10           /* error interrupt enable mask */
-#define _RCR_PME_MASK  0x08           /* pause mode mask */
-
-#define _RCR_ER_ENABLE _RCR_ER_MASK   /* receiver enabled */
-#define _RCR_DME_DISABLE 0x00         /* dma disabled */
-#define _RCR_DME_RXRDY 0x20           /* dma disabled, RxRDY interrupt enabled*/
-#define _RCR_DME_ENABLE2 0x40         /* dma enabled,receiver src channel 2 */
-#define _RCR_DME_ENABLE3 0x60         /* dma enabled,receiver src channel 3 */
-#define _RCR_PME_HARD  _RCR_PME_MASK  /* RTS controlled by hardware */
-#define _RCR_PME_SOFT  0x00           /* RTS controlled by software */
-
-/* serial port transmit command register */
-
-#define _TxCR_ET_MASK   0x80           /* transmitter enable mask */
-#define _TxCR_DME_MASK  0x60           /* dma mode mask */
-#define _TxCR_TIE_MASK  0x10           /* empty interrupt enable mask */
-#define _TxCR_EIE_MASK  0x08           /* error interrupt enable mask */
-#define _TxCR_SPE_MASK  0x04           /* stop/pause mask */
-#define _TxCR_TB_MASK   0x02           /* transmit break mask */
-
-#define _TxCR_ET_ENABLE _TxCR_ET_MASK  /* transmitter enabled */
-#define _TxCR_DME_DISABLE 0x00         /* transmitter disabled, TBR intr disabled */
-#define _TxCR_DME_TBR   0x20           /* transmitter disabled, TBR intr enabled */
-#define _TxCR_DME_CHAN_2 0x40          /* dma enabled, destination chann 2 */
-#define _TxCR_DME_CHAN_3 0x60          /* dma enabled, destination chann 3 */
-
-/* serial ctl reg 2 - added for Vesta */
-
-#define _CTL2_EXTERN  0x80            /*  */
-#define _CTL2_USEFIFO 0x40            /*  */
-#define _CTL2_RESETRF 0x08            /*  */
-#define _CTL2_RESETTF 0x04            /*  */
-
-
-
-#define SERIAL_SICC_NAME    "ttySICC"
-#define SERIAL_SICC_MAJOR   150
-#define SERIAL_SICC_MINOR   1
-#define SERIAL_SICC_NR      1
-
-#ifndef TRUE
-#define TRUE 1
-#endif
-#ifndef FALSE
-#define FALSE 0
-#endif
-
-/*
- * Things needed by tty driver
- */
-static struct tty_driver *siccnormal_driver;
-
-#if defined(CONFIG_SERIAL_SICC_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
-#define SUPPORT_SYSRQ
-#endif
-
-/*
- * Things needed internally to this driver
- */
-
-/*
- * tmp_buf is used as a temporary buffer by serial_write.  We need to
- * lock it in case the copy_from_user blocks while swapping in a page,
- * and some other program tries to do a serial write at the same time.
- * Since the lock will only come under contention when the system is
- * swapping and available memory is low, it makes sense to share one
- * buffer across all the serial ports, since it significantly saves
- * memory if large numbers of serial ports are open.
- */
-static u_char *tmp_buf;
-
-#define HIGH_BITS_OFFSET    ((sizeof(long)-sizeof(int))*8)
-
-/* number of characters left in xmit buffer before we ask for more */
-#define WAKEUP_CHARS        256
-#define SICC_ISR_PASS_LIMIT 256
-
-#define EVT_WRITE_WAKEUP    0
-
-struct SICC_icount {
-    __u32   cts;
-    __u32   dsr;
-    __u32   rng;
-    __u32   dcd;
-    __u32   rx;
-    __u32   tx;
-    __u32   frame;
-    __u32   overrun;
-    __u32   parity;
-    __u32   brk;
-    __u32   buf_overrun;
-};
-
-/*
- * Static information about the port
- */
-struct SICC_port {
-    unsigned int        uart_base;
-    unsigned int        uart_base_phys;
-    unsigned int        irqrx;
-    unsigned int        irqtx;
-    unsigned int        uartclk;
-    unsigned int        fifosize;
-    unsigned int        tiocm_support;
-    void (*set_mctrl)(struct SICC_port *, u_int mctrl);
-};
-
-/*
- * This is the state information which is persistent across opens
- */
-struct SICC_state {
-    struct SICC_icount  icount;
-    unsigned int        line;
-    unsigned int        close_delay;
-    unsigned int        closing_wait;
-    unsigned int        custom_divisor;
-    unsigned int        flags;
-    int         count;
-    struct SICC_info    *info;
-    spinlock_t		sicc_lock;
-};
-
-#define SICC_XMIT_SIZE 1024
-/*
- * This is the state information which is only valid when the port is open.
- */
-struct SICC_info {
-    struct SICC_port    *port;
-    struct SICC_state   *state;
-    struct tty_struct   *tty;
-    unsigned char       x_char;
-    unsigned char       old_status;
-    unsigned char       read_status_mask;
-    unsigned char       ignore_status_mask;
-    struct circ_buf     xmit;
-    unsigned int        flags;
-#ifdef SUPPORT_SYSRQ
-    unsigned long       sysrq;
-#endif
-
-    unsigned int        event;
-    unsigned int        timeout;
-    unsigned int        lcr_h;
-    unsigned int        mctrl;
-    int         blocked_open;
-
-    struct tasklet_struct   tlet;
-
-    wait_queue_head_t   open_wait;
-    wait_queue_head_t   close_wait;
-    wait_queue_head_t   delta_msr_wait;
-};
-
-#ifdef CONFIG_SERIAL_SICC_CONSOLE
-static struct console siccuart_cons;
-#endif
-static void siccuart_change_speed(struct SICC_info *info, struct termios *old_termios);
-static void siccuart_wait_until_sent(struct tty_struct *tty, int timeout);
-
-
-
-static void powerpcMtcic_cr(unsigned long value)
-{
-    mtdcr(DCRN_CICCR, value);
-}
-
-static unsigned long powerpcMfcic_cr(void)
-{
-    return mfdcr(DCRN_CICCR);
-}
-
-static unsigned long powerpcMfclkgpcr(void)
-{
-    return mfdcr(DCRN_SCCR);
-}
-
-static void sicc_set_mctrl_null(struct SICC_port *port, u_int mctrl)
-{
-}
-
-static struct SICC_port sicc_ports[SERIAL_SICC_NR] = {
-    {
-        .uart_base = 0,
-        .uart_base_phys = SICC0_IO_BASE,
-        .irqrx =    SICC0_INTRX,
-        .irqtx =    SICC0_INTTX,
-//      .uartclk =    0,
-        .fifosize = 1,
-        .set_mctrl = sicc_set_mctrl_null,
-    }
-};
-
-static struct SICC_state sicc_state[SERIAL_SICC_NR];
-
-static void siccuart_enable_rx_interrupt(struct SICC_info *info)
-{
-    unsigned char cr;
-
-    cr = readb(info->port->uart_base+BL_SICC_RCR);
-    cr &= ~_RCR_DME_MASK;
-    cr |= _RCR_DME_RXRDY;
-    writeb(cr, info->port->uart_base+BL_SICC_RCR);
-}
-
-static void siccuart_disable_rx_interrupt(struct SICC_info *info)
-{
-    unsigned char cr;
-
-    cr = readb(info->port->uart_base+BL_SICC_RCR);
-    cr &= ~_RCR_DME_MASK;
-    cr |=  _RCR_DME_DISABLE;
-    writeb(cr, info->port->uart_base+BL_SICC_RCR);
-}
-
-
-static void siccuart_enable_tx_interrupt(struct SICC_info *info)
-{
-    unsigned char cr;
-
-    cr = readb(info->port->uart_base+BL_SICC_TxCR);
-    cr &= ~_TxCR_DME_MASK;
-    cr |= _TxCR_DME_TBR;
-    writeb(cr, info->port->uart_base+BL_SICC_TxCR);
-}
-
-static void siccuart_disable_tx_interrupt(struct SICC_info *info)
-{
-    unsigned char cr;
-
-    cr = readb(info->port->uart_base+BL_SICC_TxCR);
-    cr &= ~_TxCR_DME_MASK;
-    cr |=  _TxCR_DME_DISABLE;
-    writeb(cr, info->port->uart_base+BL_SICC_TxCR);
-}
-
-
-static void siccuart_stop(struct tty_struct *tty)
-{
-    struct SICC_info *info = tty->driver_data;
-    unsigned long flags;
-
-    /* disable interrupts while stopping serial port interrupts */
-    spin_lock_irqsave(&info->state->sicc_lock,flags);
-    siccuart_disable_tx_interrupt(info);
-    spin_unlock_irqrestore(&info->state->sicc_lock,flags);
-}
-
-static void siccuart_start(struct tty_struct *tty)
-{
-    struct SICC_info *info = tty->driver_data;
-    unsigned long flags;
-
-    /* disable interrupts while starting serial port interrupts */
-    spin_lock_irqsave(&info->state->sicc_lock,flags);
-    if (info->xmit.head != info->xmit.tail
-        && info->xmit.buf)
-        siccuart_enable_tx_interrupt(info);
-    spin_unlock_irqrestore(&info->state->sicc_lock,flags);
-}
-
-
-/*
- * This routine is used by the interrupt handler to schedule
- * processing in the software interrupt portion of the driver.
- */
-static void siccuart_event(struct SICC_info *info, int event)
-{
-    info->event |= 1 << event;
-    tasklet_schedule(&info->tlet);
-}
-
-static void
-siccuart_rx_chars(struct SICC_info *info)
-{
-    struct tty_struct *tty = info->tty;
-    unsigned int status, ch, rsr, flg, ignored = 0;
-    struct SICC_icount *icount = &info->state->icount;
-    struct SICC_port *port = info->port;
-
-    status = readb(port->uart_base+BL_SICC_LSR );
-    while (status & _LSR_RBR_FULL) {
-        ch = readb(port->uart_base+BL_SICC_RBR);
-
-        if (tty->flip.count >= TTY_FLIPBUF_SIZE)
-            goto ignore_char;
-        icount->rx++;
-
-        flg = TTY_NORMAL;
-
-        /*
-         * Note that the error handling code is
-         * out of the main execution path
-         */
-        rsr = readb(port->uart_base+BL_SICC_LSR);
-        if (rsr & _LSR_RX_ERR)
-            goto handle_error;
-#ifdef SUPPORT_SYSRQ
-        if (info->sysrq) {
-            if (ch && time_before(jiffies, info->sysrq)) {
-                handle_sysrq(ch, NULL);
-                info->sysrq = 0;
-                goto ignore_char;
-            }
-            info->sysrq = 0;
-        }
-#endif
-    error_return:
-        *tty->flip.flag_buf_ptr++ = flg;
-        *tty->flip.char_buf_ptr++ = ch;
-        tty->flip.count++;
-    ignore_char:
-        status = readb(port->uart_base+BL_SICC_LSR );
-    }
-out:
-    tty_flip_buffer_push(tty);
-    return;
-
-handle_error:
-    if (rsr & _LSR_LB_BREAK) {
-        rsr &= ~(_LSR_FE_MASK | _LSR_PE_MASK);
-        icount->brk++;
-
-#ifdef SUPPORT_SYSRQ
-        if (info->state->line == siccuart_cons.index) {
-            if (!info->sysrq) {
-                info->sysrq = jiffies + HZ*5;
-                goto ignore_char;
-            }
-        }
-#endif
-    } else if (rsr & _LSR_PE_MASK)
-        icount->parity++;
-    else if (rsr & _LSR_FE_MASK)
-        icount->frame++;
-    if (rsr & _LSR_OE_MASK)
-        icount->overrun++;
-
-    if (rsr & info->ignore_status_mask) {
-        if (++ignored > 100)
-            goto out;
-        goto ignore_char;
-    }
-    rsr &= info->read_status_mask;
-
-    if (rsr & _LSR_LB_BREAK)
-        flg = TTY_BREAK;
-    else if (rsr &  _LSR_PE_MASK)
-        flg = TTY_PARITY;
-    else if (rsr &  _LSR_FE_MASK)
-        flg = TTY_FRAME;
-
-    if (rsr &  _LSR_OE_MASK) {
-        /*
-         * CHECK: does overrun affect the current character?
-         * ASSUMPTION: it does not.
-         */
-        *tty->flip.flag_buf_ptr++ = flg;
-        *tty->flip.char_buf_ptr++ = ch;
-        tty->flip.count++;
-        if (tty->flip.count >= TTY_FLIPBUF_SIZE)
-            goto ignore_char;
-        ch = 0;
-        flg = TTY_OVERRUN;
-    }
-#ifdef SUPPORT_SYSRQ
-    info->sysrq = 0;
-#endif
-    goto error_return;
-}
-
-static void siccuart_tx_chars(struct SICC_info *info)
-{
-    struct SICC_port *port = info->port;
-    int count;
-        unsigned char status;
-
-
-    if (info->x_char) {
-        writeb(info->x_char, port->uart_base+ BL_SICC_TBR);
-        info->state->icount.tx++;
-        info->x_char = 0;
-        return;
-    }
-    if (info->xmit.head == info->xmit.tail
-        || info->tty->stopped
-        || info->tty->hw_stopped) {
-        siccuart_disable_tx_interrupt(info);
-                writeb(status&(~_LSR_RBR_MASK),port->uart_base+BL_SICC_LSR);
-        return;
-    }
-
-    count = port->fifosize;
-    do {
-        writeb(info->xmit.buf[info->xmit.tail], port->uart_base+ BL_SICC_TBR);
-        info->xmit.tail = (info->xmit.tail + 1) & (SICC_XMIT_SIZE - 1);
-        info->state->icount.tx++;
-        if (info->xmit.head == info->xmit.tail)
-            break;
-    } while (--count > 0);
-
-    if (CIRC_CNT(info->xmit.head,
-             info->xmit.tail,
-             SICC_XMIT_SIZE) < WAKEUP_CHARS)
-        siccuart_event(info, EVT_WRITE_WAKEUP);
-
-    if (info->xmit.head == info->xmit.tail) {
-        siccuart_disable_tx_interrupt(info);
-    }
-}
-
-
-static irqreturn_t siccuart_int_rx(int irq, void *dev_id)
-{
-    struct SICC_info *info = dev_id;
-    siccuart_rx_chars(info)
-    return IRQ_HANDLED;
-}
-
-
-static irqreturn_t siccuart_int_tx(int irq, void *dev_id)
-{
-    struct SICC_info *info = dev_id;
-    siccuart_tx_chars(info);
-    return IRQ_HANDLED;
-}
-
-static void siccuart_tasklet_action(unsigned long data)
-{
-    struct SICC_info *info = (struct SICC_info *)data;
-    struct tty_struct *tty;
-
-    tty = info->tty;
-    if (!tty || !test_and_clear_bit(EVT_WRITE_WAKEUP, &info->event))
-        return;
-
-    if ((tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) &&
-        tty->ldisc.write_wakeup)
-        (tty->ldisc.write_wakeup)(tty);
-    wake_up_interruptible(&tty->write_wait);
-}
-
-static int siccuart_startup(struct SICC_info *info)
-{
-    unsigned long flags;
-    unsigned long page;
-    int retval = 0;
-
-    if (info->flags & ASYNC_INITIALIZED) {
-        return 0;
-    }
-
-    page = get_zeroed_page(GFP_KERNEL);
-    if (!page)
-        return -ENOMEM;
-
-    if (info->port->uart_base == 0)
-	info->port->uart_base = (int)ioremap(info->port->uart_base_phys, PAGE_SIZE);
-    if (info->port->uart_base == 0) {
-	free_page(page);
-	return -ENOMEM;
-    }
-
-    /* lock access to info while doing setup */
-    spin_lock_irqsave(&info->state->sicc_lock,flags);
-
-    if (info->xmit.buf)
-        free_page(page);
-    else
-        info->xmit.buf = (unsigned char *) page;
-
-
-    info->mctrl = 0;
-    if (info->tty->termios->c_cflag & CBAUD)
-        info->mctrl = TIOCM_RTS | TIOCM_DTR;
-    info->port->set_mctrl(info->port, info->mctrl);
-
-    /*
-     * initialise the old status of the modem signals
-     */
-    info->old_status = 0; // UART_GET_FR(info->port) & AMBA_UARTFR_MODEM_ANY;
-
-
-    if (info->tty)
-        clear_bit(TTY_IO_ERROR, &info->tty->flags);
-    info->xmit.head = info->xmit.tail = 0;
-
-    /*
-     * Set up the tty->alt_speed kludge
-     */
-    if (info->tty) {
-        if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
-            info->tty->alt_speed = 57600;
-        if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
-            info->tty->alt_speed = 115200;
-        if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
-            info->tty->alt_speed = 230400;
-        if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
-            info->tty->alt_speed = 460800;
-    }
-
-
-    writeb( 0x00, info->port->uart_base + BL_SICC_IrCR );  // disable IrDA
-
-
-    /*
-     * and set the speed of the serial port
-     */
-    siccuart_change_speed(info, 0);
-
-    // enable rx/tx ports
-    writeb(_RCR_ER_ENABLE /*| _RCR_PME_HARD*/, info->port->uart_base + BL_SICC_RCR);
-    writeb(_TxCR_ET_ENABLE               , info->port->uart_base + BL_SICC_TxCR);
-
-    readb(info->port->uart_base + BL_SICC_RBR); // clear rx port
-
-    writeb(0xf8, info->port->uart_base + BL_SICC_LSR);   /* reset bits 0-4 of LSR */
-
-    /*
-     * Finally, enable interrupts
-     */
-
-     /*
-     * Allocate the IRQ
-     */
-        retval = request_irq(info->port->irqrx, siccuart_int_rx, 0, "SICC rx", info);
-        if (retval) {
-             if (capable(CAP_SYS_ADMIN)) {
-                   if (info->tty)
-                          set_bit(TTY_IO_ERROR, &info->tty->flags);
-                   retval = 0;
-             }
-              goto errout;
-         }
-    retval = request_irq(info->port->irqtx, siccuart_int_tx, 0, "SICC tx", info);
-    if (retval) {
-        if (capable(CAP_SYS_ADMIN)) {
-            if (info->tty)
-                set_bit(TTY_IO_ERROR, &info->tty->flags);
-            retval = 0;
-        }
-        free_irq(info->port->irqrx, info);
-        goto errout;
-    }
-
-    siccuart_enable_rx_interrupt(info);
-
-    info->flags |= ASYNC_INITIALIZED;
-    spin_unlock_irqrestore(&info->state->sicc_lock,flags);
-    return 0;
-
-
-errout:
-    spin_unlock_irqrestore(&info->state->sicc_lock,flags);
-    return retval;
-}
-
-/*
- * This routine will shutdown a serial port; interrupts are disabled, and
- * DTR is dropped if the hangup on close termio flag is on.
- */
-static void siccuart_shutdown(struct SICC_info *info)
-{
-    unsigned long flags;
-
-    if (!(info->flags & ASYNC_INITIALIZED))
-        return;
-
-    /* lock while shutting down port */
-    spin_lock_irqsave(&info->state->sicc_lock,flags); /* Disable interrupts */
-
-    /*
-     * clear delta_msr_wait queue to avoid mem leaks: we may free the irq
-     * here so the queue might never be woken up
-     */
-    wake_up_interruptible(&info->delta_msr_wait);
-
-    /*
-     * disable all interrupts, disable the port
-     */
-    siccuart_disable_rx_interrupt(info);
-    siccuart_disable_tx_interrupt(info);
-
-    /*
-     * Free the IRQ
-     */
-    free_irq(info->port->irqtx, info);
-    free_irq(info->port->irqrx, info);
-
-    if (info->xmit.buf) {
-        unsigned long pg = (unsigned long) info->xmit.buf;
-        info->xmit.buf = NULL;
-        free_page(pg);
-    }
-
-
-    if (!info->tty || (info->tty->termios->c_cflag & HUPCL))
-        info->mctrl &= ~(TIOCM_DTR|TIOCM_RTS);
-    info->port->set_mctrl(info->port, info->mctrl);
-
-    /* kill off our tasklet */
-    tasklet_kill(&info->tlet);
-    if (info->tty)
-        set_bit(TTY_IO_ERROR, &info->tty->flags);
-
-    info->flags &= ~ASYNC_INITIALIZED;
-
-    spin_unlock_irqrestore(&info->state->sicc_lock,flags);
-}
-
-
-static void siccuart_change_speed(struct SICC_info *info, struct termios *old_termios)
-{
-    unsigned int lcr_h, baud, quot, cflag, old_rcr, old_tcr, bits;
-    unsigned long flags;
-
-    if (!info->tty || !info->tty->termios)
-        return;
-
-    cflag = info->tty->termios->c_cflag;
-
-    pr_debug("siccuart_set_cflag(0x%x) called\n", cflag);
-    /* byte size and parity */
-    switch (cflag & CSIZE) {
-    case CS7: lcr_h =   _LCR_PE_DISABLE | _LCR_DB_7_BITS | _LCR_SB_1_BIT; bits = 9;  break;
-    default:  lcr_h =   _LCR_PE_DISABLE | _LCR_DB_8_BITS | _LCR_SB_1_BIT; bits = 10; break; // CS8
-    }
-    if (cflag & CSTOPB) {
-        lcr_h |= _LCR_SB_2_BIT;
-        bits ++;
-    }
-    if (cflag & PARENB) {
-        lcr_h |=  _LCR_PE_ENABLE;
-        bits++;
-        if (!(cflag & PARODD))
-            lcr_h |=  _LCR_PTY_ODD;
-        else
-            lcr_h |=  _LCR_PTY_EVEN;
-    }
-
-    do {
-        /* Determine divisor based on baud rate */
-        baud = tty_get_baud_rate(info->tty);
-        if (!baud)
-            baud = 9600;
-
-
-        {
-           // here is ppc403SetBaud(com_port, baud);
-           unsigned long divisor, clockSource, temp;
-
-           /* Ensure CICCR[7] is 0 to select Internal Baud Clock */
-           powerpcMtcic_cr((unsigned long)(powerpcMfcic_cr() & 0xFEFFFFFF));
-
-           /* Determine Internal Baud Clock Frequency */
-           /* powerpcMfclkgpcr() reads DCR 0x120 - the*/
-           /* SCCR (Serial Clock Control Register) on Vesta */
-           temp = powerpcMfclkgpcr();
-
-           if(temp & 0x00000080) {
-               clockSource = 324000000;
-           }
-           else {
-               clockSource = 216000000;
-           }
-           clockSource = clockSource/(unsigned long)((temp&0x00FC0000)>>18);
-           divisor = clockSource/(16*baud) - 1;
-           /* divisor has only 12 bits of resolution */
-           if(divisor>0x00000FFF){
-               divisor=0x00000FFF;
-           }
-
-           quot = divisor;
-        }
-
-        if (baud == 38400 &&
-            ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST))
-            quot = info->state->custom_divisor;
-
-        if (!quot && old_termios) {
-            info->tty->termios->c_cflag &= ~CBAUD;
-            info->tty->termios->c_cflag |= (old_termios->c_cflag & CBAUD);
-            old_termios = NULL;
-        }
-    } while (quot == 0 && old_termios);
-
-    /* As a last resort, if the quotient is zero, default to 9600 bps */
-    if (!quot)
-        quot = (info->port->uartclk / (16 * 9600)) - 1;
-
-    info->timeout = info->port->fifosize * HZ * bits / baud;
-    info->timeout += HZ/50;     /* Add .02 seconds of slop */
-
-    if (cflag & CRTSCTS)
-        info->flags |= ASYNC_CTS_FLOW;
-    else
-        info->flags &= ~ASYNC_CTS_FLOW;
-    if (cflag & CLOCAL)
-        info->flags &= ~ASYNC_CHECK_CD;
-    else
-        info->flags |= ASYNC_CHECK_CD;
-
-    /*
-     * Set up parity check flag
-     */
-#define RELEVENT_IFLAG(iflag)   ((iflag) & (IGNBRK|BRKINT|IGNPAR|PARMRK|INPCK))
-
-    info->read_status_mask = _LSR_OE_MASK;
-    if (I_INPCK(info->tty))
-        info->read_status_mask |= _LSR_FE_MASK | _LSR_PE_MASK;
-    if (I_BRKINT(info->tty) || I_PARMRK(info->tty))
-        info->read_status_mask |= _LSR_LB_MASK;
-
-    /*
-     * Characters to ignore
-     */
-    info->ignore_status_mask = 0;
-    if (I_IGNPAR(info->tty))
-        info->ignore_status_mask |= _LSR_FE_MASK | _LSR_PE_MASK;
-    if (I_IGNBRK(info->tty)) {
-        info->ignore_status_mask |=  _LSR_LB_MASK;
-        /*
-         * If we're ignoring parity and break indicators,
-         * ignore overruns to (for real raw support).
-         */
-        if (I_IGNPAR(info->tty))
-            info->ignore_status_mask |=  _LSR_OE_MASK;
-    }
-
-    /* disable interrupts while reading and clearing registers */
-    spin_lock_irqsave(&info->state->sicc_lock,flags);
-
-    old_rcr = readb(info->port->uart_base + BL_SICC_RCR);
-    old_tcr = readb(info->port->uart_base + BL_SICC_TxCR);
-
-
-    writeb(0, info->port->uart_base + BL_SICC_RCR);
-    writeb(0, info->port->uart_base + BL_SICC_TxCR);
-
-    /*RLBtrace (&ppc403Chan0, 0x2000000c, 0, 0);*/
-
-
-    spin_unlock_irqrestore(&info->state->sicc_lock,flags);
-
-
-    /* Set baud rate */
-    writeb((quot & 0x00000F00)>>8, info->port->uart_base + BL_SICC_BRDH );
-    writeb( quot & 0x00000FF,      info->port->uart_base + BL_SICC_BRDL );
-
-    /* Set CTL2 reg to use external clock (ExtClk) and enable FIFOs. */
-    /* For now, do NOT use FIFOs since 403 UART did not have this    */
-    /* capability and this driver was inherited from 403UART.        */
-    writeb(_CTL2_EXTERN, info->port->uart_base + BL_SICC_CTL2);
-
-    writeb(lcr_h, info->port->uart_base + BL_SICC_LCR);
-
-    writeb(old_rcr, info->port->uart_base + BL_SICC_RCR);  // restore rcr
-    writeb(old_tcr, info->port->uart_base + BL_SICC_TxCR); // restore txcr
-
-}
-
-
-static void siccuart_put_char(struct tty_struct *tty, u_char ch)
-{
-    struct SICC_info *info = tty->driver_data;
-    unsigned long flags;
-
-    if (!tty || !info->xmit.buf)
-        return;
-
-    /* lock info->xmit while adding character to tx buffer */
-    spin_lock_irqsave(&info->state->sicc_lock,flags);
-    if (CIRC_SPACE(info->xmit.head, info->xmit.tail, SICC_XMIT_SIZE) != 0) {
-        info->xmit.buf[info->xmit.head] = ch;
-        info->xmit.head = (info->xmit.head + 1) & (SICC_XMIT_SIZE - 1);
-    }
-    spin_unlock_irqrestore(&info->state->sicc_lock,flags);
-}
-
-static void siccuart_flush_chars(struct tty_struct *tty)
-{
-    struct SICC_info *info = tty->driver_data;
-    unsigned long flags;
-
-    if (info->xmit.head == info->xmit.tail
-        || tty->stopped
-        || tty->hw_stopped
-        || !info->xmit.buf)
-        return;
-
-    /* disable interrupts while transmitting characters */
-    spin_lock_irqsave(&info->state->sicc_lock,flags);
-    siccuart_enable_tx_interrupt(info);
-    spin_unlock_irqrestore(&info->state->sicc_lock,flags);
-}
-
-static int siccuart_write(struct tty_struct *tty,
-              const u_char * buf, int count)
-{
-    struct SICC_info *info = tty->driver_data;
-    unsigned long flags;
-    int c, ret = 0;
-
-    if (!tty || !info->xmit.buf || !tmp_buf)
-        return 0;
-
-    /* lock info->xmit while removing characters from buffer */
-    spin_lock_irqsave(&info->state->sicc_lock,flags);
-    while (1) {
-        c = CIRC_SPACE_TO_END(info->xmit.head,
-                      info->xmit.tail,
-                      SICC_XMIT_SIZE);
-        if (count < c)
-            c = count;
-        if (c <= 0)
-            break;
-        memcpy(info->xmit.buf + info->xmit.head, buf, c);
-        info->xmit.head = (info->xmit.head + c) &
-                  (SICC_XMIT_SIZE - 1);
-        buf += c;
-        count -= c;
-        ret += c;
-    }
-    if (info->xmit.head != info->xmit.tail
-        && !tty->stopped
-        && !tty->hw_stopped)
-        siccuart_enable_tx_interrupt(info);
-    spin_unlock_irqrestore(&info->state->sicc_lock,flags);
-    return ret;
-}
-
-static int siccuart_write_room(struct tty_struct *tty)
-{
-    struct SICC_info *info = tty->driver_data;
-
-    return CIRC_SPACE(info->xmit.head, info->xmit.tail, SICC_XMIT_SIZE);
-}
-
-static int siccuart_chars_in_buffer(struct tty_struct *tty)
-{
-    struct SICC_info *info = tty->driver_data;
-
-    return CIRC_CNT(info->xmit.head, info->xmit.tail, SICC_XMIT_SIZE);
-}
-
-static void siccuart_flush_buffer(struct tty_struct *tty)
-{
-    struct SICC_info *info = tty->driver_data;
-    unsigned long flags;
-
-    pr_debug("siccuart_flush_buffer(%d) called\n", tty->index);
-    /* lock info->xmit while zeroing buffer counts */
-    spin_lock_irqsave(&info->state->sicc_lock,flags);
-    info->xmit.head = info->xmit.tail = 0;
-    spin_unlock_irqrestore(&info->state->sicc_lock,flags);
-    wake_up_interruptible(&tty->write_wait);
-    if ((tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) &&
-        tty->ldisc.write_wakeup)
-        (tty->ldisc.write_wakeup)(tty);
-}
-
-/*
- * This function is used to send a high-priority XON/XOFF character to
- * the device
- */
-static void siccuart_send_xchar(struct tty_struct *tty, char ch)
-{
-    struct SICC_info *info = tty->driver_data;
-
-    info->x_char = ch;
-    if (ch)
-       siccuart_enable_tx_interrupt(info);
-}
-
-static void siccuart_throttle(struct tty_struct *tty)
-{
-    struct SICC_info *info = tty->driver_data;
-    unsigned long flags;
-
-    if (I_IXOFF(tty))
-        siccuart_send_xchar(tty, STOP_CHAR(tty));
-
-    if (tty->termios->c_cflag & CRTSCTS) {
-        /* disable interrupts while setting modem control lines */
-        spin_lock_irqsave(&info->state->sicc_lock,flags);
-        info->mctrl &= ~TIOCM_RTS;
-        info->port->set_mctrl(info->port, info->mctrl);
-        spin_unlock_irqrestore(&info->state->sicc_lock,flags);
-    }
-}
-
-static void siccuart_unthrottle(struct tty_struct *tty)
-{
-    struct SICC_info *info = (struct SICC_info *) tty->driver_data;
-    unsigned long flags;
-
-    if (I_IXOFF(tty)) {
-        if (info->x_char)
-            info->x_char = 0;
-        else
-            siccuart_send_xchar(tty, START_CHAR(tty));
-    }
-
-    if (tty->termios->c_cflag & CRTSCTS) {
-        /* disable interrupts while setting modem control lines */
-        spin_lock_irqsave(&info->state->sicc_lock,flags);
-        info->mctrl |= TIOCM_RTS;
-        info->port->set_mctrl(info->port, info->mctrl);
-        spin_unlock_irqrestore(&info->state->sicc_lock,flags);
-    }
-}
-
-static int get_serial_info(struct SICC_info *info, struct serial_struct *retinfo)
-{
-    struct SICC_state *state = info->state;
-    struct SICC_port *port = info->port;
-    struct serial_struct tmp;
-
-    memset(&tmp, 0, sizeof(tmp));
-    tmp.type       = 0;
-    tmp.line       = state->line;
-    tmp.port       = port->uart_base;
-    if (HIGH_BITS_OFFSET)
-        tmp.port_high = port->uart_base >> HIGH_BITS_OFFSET;
-    tmp.irq        = port->irqrx;
-    tmp.flags      = 0;
-    tmp.xmit_fifo_size = port->fifosize;
-    tmp.baud_base      = port->uartclk / 16;
-    tmp.close_delay    = state->close_delay;
-    tmp.closing_wait   = state->closing_wait;
-    tmp.custom_divisor = state->custom_divisor;
-
-    if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
-        return -EFAULT;
-    return 0;
-}
-
-static int set_serial_info(struct SICC_info *info,
-               struct serial_struct *newinfo)
-{
-    struct serial_struct new_serial;
-    struct SICC_state *state, old_state;
-    struct SICC_port *port;
-    unsigned long new_port;
-    unsigned int i, change_irq, change_port;
-    int retval = 0;
-
-    if (copy_from_user(&new_serial, newinfo, sizeof(new_serial)))
-        return -EFAULT;
-
-    state = info->state;
-    old_state = *state;
-    port = info->port;
-
-    new_port = new_serial.port;
-    if (HIGH_BITS_OFFSET)
-        new_port += (unsigned long) new_serial.port_high << HIGH_BITS_OFFSET;
-
-    change_irq  = new_serial.irq != port->irqrx;
-    change_port = new_port != port->uart_base;
-
-    if (!capable(CAP_SYS_ADMIN)) {
-        if (change_irq || change_port ||
-            (new_serial.baud_base != port->uartclk / 16) ||
-            (new_serial.close_delay != state->close_delay) ||
-            (new_serial.xmit_fifo_size != port->fifosize) ||
-            ((new_serial.flags & ~ASYNC_USR_MASK) !=
-             (state->flags & ~ASYNC_USR_MASK)))
-            return -EPERM;
-        state->flags = ((state->flags & ~ASYNC_USR_MASK) |
-                (new_serial.flags & ASYNC_USR_MASK));
-        info->flags = ((info->flags & ~ASYNC_USR_MASK) |
-                   (new_serial.flags & ASYNC_USR_MASK));
-        state->custom_divisor = new_serial.custom_divisor;
-        goto check_and_exit;
-    }
-
-    if ((new_serial.irq >= NR_IRQS) || (new_serial.irq < 0) ||
-        (new_serial.baud_base < 9600))
-        return -EINVAL;
-
-    if (new_serial.type && change_port) {
-        for (i = 0; i < SERIAL_SICC_NR; i++)
-            if ((port != sicc_ports + i) &&
-                sicc_ports[i].uart_base != new_port)
-                return -EADDRINUSE;
-    }
-
-    if ((change_port || change_irq) && (state->count > 1))
-        return -EBUSY;
-
-    /*
-     * OK, past this point, all the error checking has been done.
-     * At this point, we start making changes.....
-     */
-    port->uartclk = new_serial.baud_base * 16;
-    state->flags = ((state->flags & ~ASYNC_FLAGS) |
-            (new_serial.flags & ASYNC_FLAGS));
-    info->flags = ((state->flags & ~ASYNC_INTERNAL_FLAGS) |
-               (info->flags & ASYNC_INTERNAL_FLAGS));
-    state->custom_divisor = new_serial.custom_divisor;
-    state->close_delay = msecs_to_jiffies(10 * new_serial.close_delay);
-    state->closing_wait = msecs_to_jiffies(10 * new_serial.closing_wait);
-    info->tty->low_latency = (info->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
-    port->fifosize = new_serial.xmit_fifo_size;
-
-    if (change_port || change_irq) {
-        /*
-         * We need to shutdown the serial port at the old
-         * port/irq combination.
-         */
-        siccuart_shutdown(info);
-        port->irqrx = new_serial.irq;
-        port->uart_base = new_port;
-    }
-
-check_and_exit:
-    if (!port->uart_base)
-        return 0;
-    if (info->flags & ASYNC_INITIALIZED) {
-        if ((old_state.flags & ASYNC_SPD_MASK) !=
-            (state->flags & ASYNC_SPD_MASK) ||
-            (old_state.custom_divisor != state->custom_divisor)) {
-            if ((state->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
-                info->tty->alt_speed = 57600;
-            if ((state->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
-                info->tty->alt_speed = 115200;
-            if ((state->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
-                info->tty->alt_speed = 230400;
-            if ((state->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
-                info->tty->alt_speed = 460800;
-            siccuart_change_speed(info, NULL);
-        }
-    } else
-        retval = siccuart_startup(info);
-    return retval;
-}
-
-
-/*
- * get_lsr_info - get line status register info
- */
-static int get_lsr_info(struct SICC_info *info, unsigned int *value)
-{
-    unsigned int result, status;
-    unsigned long flags;
-
-    /* disable interrupts while reading status from port */
-    spin_lock_irqsave(&info->state->sicc_lock,flags);
-    status = readb(info->port->uart_base +  BL_SICC_LSR);
-    spin_unlock_irqrestore(&info->state->sicc_lock,flags);
-    result = status & _LSR_TSR_EMPTY ? TIOCSER_TEMT : 0;
-
-    /*
-     * If we're about to load something into the transmit
-     * register, we'll pretend the transmitter isn't empty to
-     * avoid a race condition (depending on when the transmit
-     * interrupt happens).
-     */
-    if (info->x_char ||
-        ((CIRC_CNT(info->xmit.head, info->xmit.tail,
-               SICC_XMIT_SIZE) > 0) &&
-         !info->tty->stopped && !info->tty->hw_stopped))
-        result &= TIOCSER_TEMT;
-
-    return put_user(result, value);
-}
-
-static int get_modem_info(struct SICC_info *info, unsigned int *value)
-{
-    unsigned int result = info->mctrl;
-
-    return put_user(result, value);
-}
-
-static int set_modem_info(struct SICC_info *info, unsigned int cmd,
-              unsigned int *value)
-{
-    unsigned int arg, old;
-    unsigned long flags;
-
-    if (get_user(arg, value))
-        return -EFAULT;
-
-    old = info->mctrl;
-    switch (cmd) {
-    case TIOCMBIS:
-        info->mctrl |= arg;
-        break;
-
-    case TIOCMBIC:
-        info->mctrl &= ~arg;
-        break;
-
-    case TIOCMSET:
-        info->mctrl = arg;
-        break;
-
-    default:
-        return -EINVAL;
-    }
-    /* disable interrupts while setting modem control lines */
-    spin_lock_irqsave(&info->state->sicc_lock,flags);
-    if (old != info->mctrl)
-        info->port->set_mctrl(info->port, info->mctrl);
-    spin_unlock_irqrestore(&info->state->sicc_lock,flags);
-    return 0;
-}
-
-static void siccuart_break_ctl(struct tty_struct *tty, int break_state)
-{
-    struct SICC_info *info = tty->driver_data;
-    unsigned long flags;
-    unsigned int lcr_h;
-
-
-    /* disable interrupts while setting break state */
-    spin_lock_irqsave(&info->state->sicc_lock,flags);
-    lcr_h = readb(info->port + BL_SICC_LSR);
-    if (break_state == -1)
-        lcr_h |=  _LSR_LB_MASK;
-    else
-        lcr_h &= ~_LSR_LB_MASK;
-    writeb(lcr_h, info->port + BL_SICC_LSRS);
-    spin_unlock_irqrestore(&info->state->sicc_lock,flags);
-}
-
-static int siccuart_ioctl(struct tty_struct *tty, struct file *file,
-               unsigned int cmd, unsigned long arg)
-{
-    struct SICC_info *info = tty->driver_data;
-    struct SICC_icount cnow;
-    struct serial_icounter_struct icount;
-    unsigned long flags;
-
-    if ((cmd != TIOCGSERIAL) && (cmd != TIOCSSERIAL) &&
-        (cmd != TIOCSERCONFIG) && (cmd != TIOCSERGSTRUCT) &&
-        (cmd != TIOCMIWAIT) && (cmd != TIOCGICOUNT)) {
-        if (tty->flags & (1 << TTY_IO_ERROR))
-            return -EIO;
-    }
-
-    switch (cmd) {
-        case TIOCMGET:
-            return get_modem_info(info, (unsigned int *)arg);
-        case TIOCMBIS:
-        case TIOCMBIC:
-        case TIOCMSET:
-            return set_modem_info(info, cmd, (unsigned int *)arg);
-        case TIOCGSERIAL:
-            return get_serial_info(info,
-                           (struct serial_struct *)arg);
-        case TIOCSSERIAL:
-            return set_serial_info(info,
-                           (struct serial_struct *)arg);
-        case TIOCSERGETLSR: /* Get line status register */
-            return get_lsr_info(info, (unsigned int *)arg);
-        /*
-         * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change
-         * - mask passed in arg for lines of interest
-         *   (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
-         * Caller should use TIOCGICOUNT to see which one it was
-         */
-        case TIOCMIWAIT:
-            return 0;
-        /*
-         * Get counter of input serial line interrupts (DCD,RI,DSR,CTS)
-         * Return: write counters to the user passed counter struct
-         * NB: both 1->0 and 0->1 transitions are counted except for
-         *     RI where only 0->1 is counted.
-         */
-        case TIOCGICOUNT:
-            /* disable interrupts while getting interrupt count */
-            spin_lock_irqsave(&info->state->sicc_lock,flags);
-            cnow = info->state->icount;
-            spin_unlock_irqrestore(&info->state->sicc_lock,flags);
-            icount.cts = cnow.cts;
-            icount.dsr = cnow.dsr;
-            icount.rng = cnow.rng;
-            icount.dcd = cnow.dcd;
-            icount.rx  = cnow.rx;
-            icount.tx  = cnow.tx;
-            icount.frame = cnow.frame;
-            icount.overrun = cnow.overrun;
-            icount.parity = cnow.parity;
-            icount.brk = cnow.brk;
-            icount.buf_overrun = cnow.buf_overrun;
-
-            return copy_to_user((void *)arg, &icount, sizeof(icount))
-                    ? -EFAULT : 0;
-
-        default:
-            return -ENOIOCTLCMD;
-    }
-    return 0;
-}
-
-static void siccuart_set_termios(struct tty_struct *tty, struct termios *old_termios)
-{
-    struct SICC_info *info = tty->driver_data;
-    unsigned long flags;
-    unsigned int cflag = tty->termios->c_cflag;
-
-    if ((cflag ^ old_termios->c_cflag) == 0 &&
-        RELEVENT_IFLAG(tty->termios->c_iflag ^ old_termios->c_iflag) == 0)
-        return;
-
-    siccuart_change_speed(info, old_termios);
-
-    /* Handle transition to B0 status */
-    if ((old_termios->c_cflag & CBAUD) &&
-        !(cflag & CBAUD)) {
-        /* disable interrupts while setting break state */
-        spin_lock_irqsave(&info->state->sicc_lock,flags);
-        info->mctrl &= ~(TIOCM_RTS | TIOCM_DTR);
-        info->port->set_mctrl(info->port, info->mctrl);
-        spin_unlock_irqrestore(&info->state->sicc_lock,flags);
-    }
-
-    /* Handle transition away from B0 status */
-    if (!(old_termios->c_cflag & CBAUD) &&
-        (cflag & CBAUD)) {
-        /* disable interrupts while setting break state */
-        spin_lock_irqsave(&info->state->sicc_lock,flags);
-        info->mctrl |= TIOCM_DTR;
-        if (!(cflag & CRTSCTS) ||
-            !test_bit(TTY_THROTTLED, &tty->flags))
-            info->mctrl |= TIOCM_RTS;
-        info->port->set_mctrl(info->port, info->mctrl);
-        spin_unlock_irqrestore(&info->state->sicc_lock,flags);
-    }
-
-    /* Handle turning off CRTSCTS */
-    if ((old_termios->c_cflag & CRTSCTS) &&
-        !(cflag & CRTSCTS)) {
-        tty->hw_stopped = 0;
-        siccuart_start(tty);
-    }
-
-#if 0
-    /*
-     * No need to wake up processes in open wait, since they
-     * sample the CLOCAL flag once, and don't recheck it.
-     * XXX  It's not clear whether the current behavior is correct
-     * or not.  Hence, this may change.....
-     */
-    if (!(old_termios->c_cflag & CLOCAL) &&
-        (tty->termios->c_cflag & CLOCAL))
-        wake_up_interruptible(&info->open_wait);
-#endif
-}
-
-static void siccuart_close(struct tty_struct *tty, struct file *filp)
-{
-    struct SICC_info *info = tty->driver_data;
-    struct SICC_state *state;
-    unsigned long flags;
-
-    if (!info)
-        return;
-
-    state = info->state;
-
-    //pr_debug("siccuart_close() called\n");
-
-    /* lock tty->driver_data while closing port */
-    spin_lock_irqsave(&info->state->sicc_lock,flags);
-
-    if (tty_hung_up_p(filp)) {
-        goto quick_close;
-    }
-
-    if ((tty->count == 1) && (state->count != 1)) {
-        /*
-         * Uh, oh.  tty->count is 1, which means that the tty
-         * structure will be freed.  state->count should always
-         * be one in these conditions.  If it's greater than
-         * one, we've got real problems, since it means the
-         * serial port won't be shutdown.
-         */
-        printk("siccuart_close: bad serial port count; tty->count is 1, state->count is %d\n", state->count);
-        state->count = 1;
-    }
-    if (--state->count < 0) {
-        printk("rs_close: bad serial port count for %s: %d\n", tty->name, state->count);
-        state->count = 0;
-    }
-    if (state->count) {
-        goto quick_close;
-    }
-    info->flags |= ASYNC_CLOSING;
-    spin_unlock_irqrestore(&info->state->sicc_lock,flags);
-    /*
-     * Now we wait for the transmit buffer to clear; and we notify
-     * the line discipline to only process XON/XOFF characters.
-     */
-    tty->closing = 1;
-    if (info->state->closing_wait != ASYNC_CLOSING_WAIT_NONE)
-        tty_wait_until_sent(tty, info->state->closing_wait);
-    /*
-     * At this point, we stop accepting input.  To do this, we
-     * disable the receive line status interrupts.
-     */
-    if (info->flags & ASYNC_INITIALIZED) {
-        siccuart_disable_rx_interrupt(info);
-        /*
-         * Before we drop DTR, make sure the UART transmitter
-         * has completely drained; this is especially
-         * important if there is a transmit FIFO!
-         */
-        siccuart_wait_until_sent(tty, info->timeout);
-    }
-    siccuart_shutdown(info);
-    if (tty->driver->flush_buffer)
-        tty->driver->flush_buffer(tty);
-    if (tty->ldisc.flush_buffer)
-        tty->ldisc.flush_buffer(tty);
-    tty->closing = 0;
-    info->event = 0;
-    info->tty = NULL;
-    if (info->blocked_open) {
-        if (info->state->close_delay)
-            schedule_timeout_interruptible(info->state->close_delay);
-        wake_up_interruptible(&info->open_wait);
-    }
-    info->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
-    wake_up_interruptible(&info->close_wait);
-    return;
-
-quick_close:
-    spin_unlock_irqrestore(&info->state->sicc_lock,flags);
-    return;
-}
-
-static void siccuart_wait_until_sent(struct tty_struct *tty, int timeout)
-{
-    struct SICC_info *info = (struct SICC_info *) tty->driver_data;
-    unsigned long char_time, expire;
-
-    if (info->port->fifosize == 0)
-        return;
-
-    /*
-     * Set the check interval to be 1/5 of the estimated time to
-     * send a single character, and make it at least 1.  The check
-     * interval should also be less than the timeout.
-     *
-     * Note: we have to use pretty tight timings here to satisfy
-     * the NIST-PCTS.
-     */
-    char_time = (info->timeout - msecs_to_jiffies(20)) / info->port->fifosize;
-    char_time = char_time / 5;
-    if (char_time == 0)
-        char_time = 1;
-
-    // Crazy!!   sometimes the input arg 'timeout' can be negtive numbers  :-(
-    if (timeout >= 0 && timeout < char_time)
-        char_time = timeout;
-    /*
-     * If the transmitter hasn't cleared in twice the approximate
-     * amount of time to send the entire FIFO, it probably won't
-     * ever clear.  This assumes the UART isn't doing flow
-     * control, which is currently the case.  Hence, if it ever
-     * takes longer than info->timeout, this is probably due to a
-     * UART bug of some kind.  So, we clamp the timeout parameter at
-     * 2*info->timeout.
-     */
-    if (!timeout || timeout > 2 * info->timeout)
-        timeout = 2 * info->timeout;
-
-    expire = jiffies + timeout;
-    pr_debug("siccuart_wait_until_sent(%d), jiff=%lu, expire=%lu  char_time=%lu...\n",
-           tty->index, jiffies,
-           expire, char_time);
-    while ((readb(info->port->uart_base + BL_SICC_LSR) & _LSR_TX_ALL) != _LSR_TX_ALL) {
-        schedule_timeout_interruptible(char_time);
-        if (signal_pending(current))
-            break;
-        if (timeout && time_after(jiffies, expire))
-            break;
-    }
-    set_current_state(TASK_RUNNING);
-}
-
-static void siccuart_hangup(struct tty_struct *tty)
-{
-    struct SICC_info *info = tty->driver_data;
-    struct SICC_state *state = info->state;
-
-    siccuart_flush_buffer(tty);
-    if (info->flags & ASYNC_CLOSING)
-        return;
-    siccuart_shutdown(info);
-    info->event = 0;
-    state->count = 0;
-    info->flags &= ~ASYNC_NORMAL_ACTIVE;
-    info->tty = NULL;
-    wake_up_interruptible(&info->open_wait);
-}
-
-static int block_til_ready(struct tty_struct *tty, struct file *filp,
-               struct SICC_info *info)
-{
-    DECLARE_WAITQUEUE(wait, current);
-    struct SICC_state *state = info->state;
-    unsigned long flags;
-    int do_clocal = 0, extra_count = 0, retval;
-
-    /*
-     * If the device is in the middle of being closed, then block
-     * until it's done, and then try again.
-     */
-    if (tty_hung_up_p(filp) ||
-        (info->flags & ASYNC_CLOSING)) {
-        if (info->flags & ASYNC_CLOSING)
-            interruptible_sleep_on(&info->close_wait);
-        return (info->flags & ASYNC_HUP_NOTIFY) ?
-            -EAGAIN : -ERESTARTSYS;
-    }
-
-    /*
-     * If non-blocking mode is set, or the port is not enabled,
-     * then make the check up front and then exit.
-     */
-    if ((filp->f_flags & O_NONBLOCK) ||
-        (tty->flags & (1 << TTY_IO_ERROR))) {
-        info->flags |= ASYNC_NORMAL_ACTIVE;
-        return 0;
-    }
-
-    if (tty->termios->c_cflag & CLOCAL)
-	do_clocal = 1;
-
-    /*
-     * Block waiting for the carrier detect and the line to become
-     * free (i.e., not in use by the callout).  While we are in
-     * this loop, state->count is dropped by one, so that
-     * rs_close() knows when to free things.  We restore it upon
-     * exit, either normal or abnormal.
-     */
-    retval = 0;
-    add_wait_queue(&info->open_wait, &wait);
-    /* lock while decrementing state->count */
-    spin_lock_irqsave(&info->state->sicc_lock,flags);
-    if (!tty_hung_up_p(filp)) {
-        extra_count = 1;
-        state->count--;
-    }
-    spin_unlock_irqrestore(&info->state->sicc_lock,flags);
-    info->blocked_open++;
-    while (1) {
-        /* disable interrupts while setting modem control lines */
-        spin_lock_irqsave(&info->state->sicc_lock,flags);
-        if (tty->termios->c_cflag & CBAUD) {
-            info->mctrl = TIOCM_DTR | TIOCM_RTS;
-            info->port->set_mctrl(info->port, info->mctrl);
-        }
-        spin_unlock_irqrestore(&info->state->sicc_lock,flags);
-        set_current_state(TASK_INTERRUPTIBLE);
-        if (tty_hung_up_p(filp) ||
-            !(info->flags & ASYNC_INITIALIZED)) {
-            if (info->flags & ASYNC_HUP_NOTIFY)
-                retval = -EAGAIN;
-            else
-                retval = -ERESTARTSYS;
-            break;
-        }
-        if (!(info->flags & ASYNC_CLOSING) &&
-            (do_clocal /*|| (UART_GET_FR(info->port) & SICC_UARTFR_DCD)*/))
-            break;
-        if (signal_pending(current)) {
-            retval = -ERESTARTSYS;
-            break;
-        }
-        schedule();
-    }
-    set_current_state(TASK_RUNNING);
-    remove_wait_queue(&info->open_wait, &wait);
-    if (extra_count)
-        state->count++;
-    info->blocked_open--;
-    if (retval)
-        return retval;
-    info->flags |= ASYNC_NORMAL_ACTIVE;
-    return 0;
-}
-
-static struct SICC_info *siccuart_get(int line)
-{
-    struct SICC_info *info;
-    struct SICC_state *state = sicc_state + line;
-
-    state->count++;
-    if (state->info)
-        return state->info;
-    info = kzalloc(sizeof(struct SICC_info), GFP_KERNEL);
-    if (info) {
-        init_waitqueue_head(&info->open_wait);
-        init_waitqueue_head(&info->close_wait);
-        init_waitqueue_head(&info->delta_msr_wait);
-        info->flags = state->flags;
-        info->state = state;
-        info->port  = sicc_ports + line;
-        tasklet_init(&info->tlet, siccuart_tasklet_action,
-                 (unsigned long)info);
-    }
-    if (state->info) {
-        kfree(info);
-        return state->info;
-    }
-    state->info = info;
-    return info;
-}
-
-static int siccuart_open(struct tty_struct *tty, struct file *filp)
-{
-    struct SICC_info *info;
-    int retval, line = tty->index;
-
-
-    // is this a line that we've got?
-    if (line >= SERIAL_SICC_NR) {
-        return -ENODEV;
-    }
-
-    info = siccuart_get(line);
-    if (!info)
-        return -ENOMEM;
-
-    tty->driver_data = info;
-    info->tty = tty;
-    info->tty->low_latency = (info->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
-
-    /*
-     * Make sure we have the temporary buffer allocated
-     */
-    if (!tmp_buf) {
-        unsigned long page = get_zeroed_page(GFP_KERNEL);
-        if (tmp_buf)
-            free_page(page);
-        else if (!page) {
-            return -ENOMEM;
-        }
-        tmp_buf = (u_char *)page;
-    }
-
-    /*
-     * If the port is in the middle of closing, bail out now.
-     */
-    if (tty_hung_up_p(filp) ||
-        (info->flags & ASYNC_CLOSING)) {
-        if (info->flags & ASYNC_CLOSING)
-            interruptible_sleep_on(&info->close_wait);
-        return -EAGAIN;
-    }
-
-    /*
-     * Start up the serial port
-     */
-    retval = siccuart_startup(info);
-    if (retval) {
-        return retval;
-    }
-
-    retval = block_til_ready(tty, filp, info);
-    if (retval) {
-        return retval;
-    }
-
-#ifdef CONFIG_SERIAL_SICC_CONSOLE
-    if (siccuart_cons.cflag && siccuart_cons.index == line) {
-        tty->termios->c_cflag = siccuart_cons.cflag;
-        siccuart_cons.cflag = 0;
-        siccuart_change_speed(info, NULL);
-    }
-#endif
-    return 0;
-}
-
-static const struct tty_operations sicc_ops = {
-	.open = siccuart_open,
-	.close = siccuart_close,
-	.write = siccuart_write,
-	.put_char = siccuart_put_char,
-	.flush_chars = siccuart_flush_chars,
-	.write_room = siccuart_write_room,
-	.chars_in_buffer = siccuart_chars_in_buffer,
-	.flush_buffer  = siccuart_flush_buffer,
-	.ioctl = siccuart_ioctl,
-	.throttle = siccuart_throttle,
-	.unthrottle = siccuart_unthrottle,
-	.send_xchar = siccuart_send_xchar,
-	.set_termios = siccuart_set_termios,
-	.stop = siccuart_stop,
-	.start = siccuart_start,
-	.hangup = siccuart_hangup,
-	.break_ctl = siccuart_break_ctl,
-	.wait_until_sent = siccuart_wait_until_sent,
-};
-
-int __init siccuart_init(void)
-{
-    int i;
-    siccnormal_driver = alloc_tty_driver(SERIAL_SICC_NR);
-    if (!siccnormal_driver)
-	return -ENOMEM;
-    printk("IBM Vesta SICC serial port driver V 0.1 by Yudong Yang and Yi Ge / IBM CRL .\n");
-    siccnormal_driver->driver_name = "serial_sicc";
-    siccnormal_driver->owner = THIS_MODULE;
-    siccnormal_driver->name = SERIAL_SICC_NAME;
-    siccnormal_driver->major = SERIAL_SICC_MAJOR;
-    siccnormal_driver->minor_start = SERIAL_SICC_MINOR;
-    siccnormal_driver->type = TTY_DRIVER_TYPE_SERIAL;
-    siccnormal_driver->subtype = SERIAL_TYPE_NORMAL;
-    siccnormal_driver->init_termios = tty_std_termios;
-    siccnormal_driver->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL;
-    siccnormal_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
-    tty_set_operations(siccnormal_driver, &sicc_ops);
-
-    if (tty_register_driver(siccnormal_driver))
-        panic("Couldn't register SICC serial driver\n");
-
-    for (i = 0; i < SERIAL_SICC_NR; i++) {
-        struct SICC_state *state = sicc_state + i;
-        state->line     = i;
-        state->close_delay  = msecs_to_jiffies(500);
-        state->closing_wait = 30 * HZ;
-	spin_lock_init(&state->sicc_lock);
-    }
-
-
-    return 0;
-}
-
-__initcall(siccuart_init);
-
-#ifdef CONFIG_SERIAL_SICC_CONSOLE
-/************** console driver *****************/
-
-/*
- * This code is currently never used; console->read is never called.
- * Therefore, although we have an implementation, we don't use it.
- * FIXME: the "const char *s" should be fixed to "char *s" some day.
- * (when the definition in include/linux/console.h is also fixed)
- */
-#ifdef used_and_not_const_char_pointer
-static int siccuart_console_read(struct console *co, const char *s, u_int count)
-{
-    struct SICC_port *port = &sicc_ports[co->index];
-    unsigned int status;
-    char *w;
-    int c;
-
-    pr_debug("siccuart_console_read() called\n");
-
-    c = 0;
-    w = s;
-    while (c < count) {
-        if(readb(port->uart_base +  BL_SICC_LSR) & _LSR_RBR_FULL) {
-            *w++ = readb(port->uart_base +  BL_SICC_RBR);
-            c++;
-        } else {
-            // nothing more to get, return
-            return c;
-        }
-    }
-    // return the count
-    return c;
-}
-#endif
-
-/*
- *  Print a string to the serial port trying not to disturb
- *  any possible real use of the port...
- *
- *  The console_lock must be held when we get here.
- */
-static void siccuart_console_write(struct console *co, const char *s, u_int count)
-{
-    struct SICC_port *port = &sicc_ports[co->index];
-    unsigned int old_cr;
-    int i;
-
-    /*
-     *  First save the CR then disable the interrupts
-     */
-    old_cr = readb(port->uart_base +  BL_SICC_TxCR);
-    writeb(old_cr & ~_TxCR_DME_MASK, port->uart_base +  BL_SICC_TxCR);
-
-    /*
-     *  Now, do each character
-     */
-    for (i = 0; i < count; i++) {
-        while ((readb(port->uart_base +  BL_SICC_LSR)&_LSR_TX_ALL) != _LSR_TX_ALL);
-        writeb(s[i], port->uart_base +  BL_SICC_TBR);
-        if (s[i] == '\n') {
-            while ((readb(port->uart_base +  BL_SICC_LSR)&_LSR_TX_ALL) != _LSR_TX_ALL);
-            writeb('\r', port->uart_base +  BL_SICC_TBR);
-        }
-    }
-
-    /*
-     *  Finally, wait for transmitter to become empty
-     *  and restore the TCR
-     */
-    while ((readb(port->uart_base +  BL_SICC_LSR)&_LSR_TX_ALL) != _LSR_TX_ALL);
-    writeb(old_cr, port->uart_base +  BL_SICC_TxCR);
-}
-
-/*
- *  Receive character from the serial port
- */
-static int siccuart_console_wait_key(struct console *co)
-{
-    struct SICC_port *port = &sicc_ports[co->index];
-    int c;
-
-    while(!(readb(port->uart_base +  BL_SICC_LSR) & _LSR_RBR_FULL));
-    c = readb(port->uart_base +  BL_SICC_RBR);
-    return c;
-}
-
-static struct tty_driver *siccuart_console_device(struct console *c, int *index)
-{
-	*index = c->index;
-	return siccnormal_driver;
-}
-
-static int __init siccuart_console_setup(struct console *co, char *options)
-{
-    struct SICC_port *port;
-    int baud = 9600;
-    int bits = 8;
-    int parity = 'n';
-    u_int cflag = CREAD | HUPCL | CLOCAL;
-    u_int lcr_h, quot;
-
-
-    if (co->index >= SERIAL_SICC_NR)
-        co->index = 0;
-
-    port = &sicc_ports[co->index];
-
-    if (port->uart_base == 0)
-	port->uart_base = (int)ioremap(port->uart_base_phys, PAGE_SIZE);
-
-    if (options) {
-        char *s = options;
-        baud = simple_strtoul(s, NULL, 10);
-        while (*s >= '0' && *s <= '9')
-            s++;
-        if (*s) parity = *s++;
-        if (*s) bits = *s - '0';
-    }
-
-    /*
-     *    Now construct a cflag setting.
-     */
-    switch (baud) {
-    case 1200:  cflag |= B1200;         break;
-    case 2400:  cflag |= B2400;         break;
-    case 4800:  cflag |= B4800;         break;
-    default:    cflag |= B9600;   baud = 9600;  break;
-    case 19200: cflag |= B19200;        break;
-    case 38400: cflag |= B38400;        break;
-    case 57600: cflag |= B57600;        break;
-    case 115200:    cflag |= B115200;       break;
-    }
-    switch (bits) {
-    case 7:   cflag |= CS7; lcr_h = _LCR_PE_DISABLE | _LCR_DB_7_BITS | _LCR_SB_1_BIT;   break;
-    default:  cflag |= CS8; lcr_h = _LCR_PE_DISABLE | _LCR_DB_8_BITS | _LCR_SB_1_BIT;   break;
-    }
-    switch (parity) {
-    case 'o':
-    case 'O': cflag |= PARODD; lcr_h |= _LCR_PTY_ODD;   break;
-    case 'e':
-    case 'E': cflag |= PARENB; lcr_h |= _LCR_PE_ENABLE |  _LCR_PTY_ODD; break;
-    }
-
-    co->cflag = cflag;
-
-
-       {
-           // a copy of is inserted here ppc403SetBaud(com_port, (int)9600);
-           unsigned long divisor, clockSource, temp;
-           unsigned int rate = baud;
-
-          /* Ensure CICCR[7] is 0 to select Internal Baud Clock */
-          powerpcMtcic_cr((unsigned long)(powerpcMfcic_cr() & 0xFEFFFFFF));
-
-          /* Determine Internal Baud Clock Frequency */
-          /* powerpcMfclkgpcr() reads DCR 0x120 - the*/
-          /* SCCR (Serial Clock Control Register) on Vesta */
-          temp = powerpcMfclkgpcr();
-
-          if(temp & 0x00000080) {
-              clockSource = 324000000;
-          }
-          else {
-              clockSource = 216000000;
-          }
-          clockSource = clockSource/(unsigned long)((temp&0x00FC0000)>>18);
-          divisor = clockSource/(16*rate) - 1;
-          /* divisor has only 12 bits of resolution */
-          if(divisor>0x00000FFF){
-               divisor=0x00000FFF;
-          }
-
-          quot = divisor;
-       }
-
-    writeb((quot & 0x00000F00)>>8, port->uart_base + BL_SICC_BRDH );
-    writeb( quot & 0x00000FF,      port->uart_base   + BL_SICC_BRDL );
-
-    /* Set CTL2 reg to use external clock (ExtClk) and enable FIFOs. */
-    /* For now, do NOT use FIFOs since 403 UART did not have this    */
-    /* capability and this driver was inherited from 403UART.        */
-    writeb(_CTL2_EXTERN, port->uart_base  + BL_SICC_CTL2);
-
-    writeb(lcr_h, port->uart_base + BL_SICC_LCR);
-    writeb(_RCR_ER_ENABLE | _RCR_PME_HARD, port->uart_base + BL_SICC_RCR);
-    writeb( _TxCR_ET_ENABLE , port->uart_base + BL_SICC_TxCR);
-
-    // writeb(, info->port->uart_base + BL_SICC_RCR );
-    /*
-     * Transmitter Command Register: Transmitter enabled & DMA + TBR interrupt
-     * + Transmitter Empty interrupt + Transmitter error interrupt disabled &
-     * Stop mode when CTS active enabled & Transmit Break + Pattern Generation
-     * mode disabled.
-     */
-
-    writeb( 0x00, port->uart_base + BL_SICC_IrCR );  // disable IrDA
-
-    readb(port->uart_base + BL_SICC_RBR);
-
-    writeb(0xf8, port->uart_base + BL_SICC_LSR);   /* reset bits 0-4 of LSR */
-
-    /* we will enable the port as we need it */
-
-    return 0;
-}
-
-static struct console siccuart_cons =
-{
-    .name =     SERIAL_SICC_NAME,
-    .write =    siccuart_console_write,
-#ifdef used_and_not_const_char_pointer
-    .read =     siccuart_console_read,
-#endif
-    .device =   siccuart_console_device,
-    .wait_key = siccuart_console_wait_key,
-    .setup =    siccuart_console_setup,
-    .flags =    CON_PRINTBUFFER,
-    .index =    -1,
-};
-
-void __init sicc_console_init(void)
-{
-    register_console(&siccuart_cons);
-}
-
-#endif /* CONFIG_SERIAL_SICC_CONSOLE */