Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 782 insertions, 0 deletions

diff --git a/drivers/serial/uart00.c b/drivers/serial/uart00.c
new file mode 100644
index 000000000000..186f1300cead
--- /dev/null
+++ b/drivers/serial/uart00.c
@@ -0,0 +1,782 @@
+/*
+ *  linux/drivers/serial/uart00.c
+ *
+ *  Driver for UART00 serial ports
+ *
+ *  Based on drivers/char/serial_amba.c, by ARM Limited & 
+ *                                          Deep Blue Solutions Ltd.
+ *  Copyright 2001 Altera Corporation
+ *
+ *  Update for 2.6.4 by Dirk Behme <dirk.behme@de.bosch.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
+ *
+ *  $Id: uart00.c,v 1.35 2002/07/28 10:03:28 rmk Exp $
+ *
+ */
+#include <linux/config.h>
+
+#if defined(CONFIG_SERIAL_UART00_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
+#define SUPPORT_SYSRQ
+#endif
+
+#include <linux/module.h>
+#include <linux/ioport.h>
+#include <linux/init.h>
+#include <linux/console.h>
+#include <linux/sysrq.h>
+#include <linux/tty.h>
+#include <linux/tty_flip.h>
+#include <linux/serial_core.h>
+#include <linux/serial.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/sizes.h>
+
+#include <asm/arch/excalibur.h>
+#define UART00_TYPE (volatile unsigned int*)
+#include <asm/arch/uart00.h>
+#include <asm/arch/int_ctrl00.h>
+
+#define UART_NR         2
+
+#define SERIAL_UART00_NAME      "ttyUA"
+#define SERIAL_UART00_MAJOR     204
+#define SERIAL_UART00_MINOR     16      /* Temporary - will change in future */
+#define SERIAL_UART00_NR        UART_NR
+#define UART_PORT_SIZE 0x50
+
+#define UART00_ISR_PASS_LIMIT   256
+
+/*
+ * Access macros for the UART00 UARTs
+ */
+#define UART_GET_INT_STATUS(p)  inl(UART_ISR((p)->membase))
+#define UART_PUT_IES(p, c)      outl(c,UART_IES((p)->membase))
+#define UART_GET_IES(p)         inl(UART_IES((p)->membase))
+#define UART_PUT_IEC(p, c)      outl(c,UART_IEC((p)->membase))
+#define UART_GET_IEC(p)         inl(UART_IEC((p)->membase))
+#define UART_PUT_CHAR(p, c)     outl(c,UART_TD((p)->membase))
+#define UART_GET_CHAR(p)        inl(UART_RD((p)->membase))
+#define UART_GET_RSR(p)         inl(UART_RSR((p)->membase))
+#define UART_GET_RDS(p)         inl(UART_RDS((p)->membase))
+#define UART_GET_MSR(p)         inl(UART_MSR((p)->membase))
+#define UART_GET_MCR(p)         inl(UART_MCR((p)->membase))
+#define UART_PUT_MCR(p, c)      outl(c,UART_MCR((p)->membase))
+#define UART_GET_MC(p)          inl(UART_MC((p)->membase))
+#define UART_PUT_MC(p, c)       outl(c,UART_MC((p)->membase))
+#define UART_GET_TSR(p)         inl(UART_TSR((p)->membase))
+#define UART_GET_DIV_HI(p)      inl(UART_DIV_HI((p)->membase))
+#define UART_PUT_DIV_HI(p,c)    outl(c,UART_DIV_HI((p)->membase))
+#define UART_GET_DIV_LO(p)      inl(UART_DIV_LO((p)->membase))
+#define UART_PUT_DIV_LO(p,c)    outl(c,UART_DIV_LO((p)->membase))
+#define UART_RX_DATA(s)         ((s) & UART_RSR_RX_LEVEL_MSK)
+#define UART_TX_READY(s)        (((s) & UART_TSR_TX_LEVEL_MSK) < 15)
+//#define UART_TX_EMPTY(p)      ((UART_GET_FR(p) & UART00_UARTFR_TMSK) == 0)
+
+static void uart00_stop_tx(struct uart_port *port, unsigned int tty_stop)
+{
+        UART_PUT_IEC(port, UART_IEC_TIE_MSK);
+}
+
+static void uart00_stop_rx(struct uart_port *port)
+{
+        UART_PUT_IEC(port, UART_IEC_RE_MSK);
+}
+
+static void uart00_enable_ms(struct uart_port *port)
+{
+        UART_PUT_IES(port, UART_IES_ME_MSK);
+}
+
+static void
+uart00_rx_chars(struct uart_port *port, struct pt_regs *regs)
+{
+        struct tty_struct *tty = port->info->tty;
+        unsigned int status, ch, rds, flg, ignored = 0;
+
+        status = UART_GET_RSR(port);
+        while (UART_RX_DATA(status)) {
+                /* 
+                 * We need to read rds before reading the 
+                 * character from the fifo
+                 */
+                rds = UART_GET_RDS(port);
+                ch = UART_GET_CHAR(port);
+                port->icount.rx++;
+
+                if (tty->flip.count >= TTY_FLIPBUF_SIZE)
+                        goto ignore_char;
+
+                flg = TTY_NORMAL;
+
+                /*
+                 * Note that the error handling code is
+                 * out of the main execution path
+                 */
+                if (rds & (UART_RDS_BI_MSK |UART_RDS_FE_MSK|
+                           UART_RDS_PE_MSK |UART_RDS_PE_MSK))
+                        goto handle_error;
+                if (uart_handle_sysrq_char(port, ch, regs))
+                        goto ignore_char;
+
+        error_return:
+                tty_insert_flip_char(tty, ch, flg);
+
+        ignore_char:
+                status = UART_GET_RSR(port);
+        }
+ out:
+        tty_flip_buffer_push(tty);
+        return;
+
+ handle_error:
+        if (rds & UART_RDS_BI_MSK) {
+                status &= ~(UART_RDS_FE_MSK | UART_RDS_PE_MSK);
+                port->icount.brk++;
+                if (uart_handle_break(port))
+                        goto ignore_char;
+        } else if (rds & UART_RDS_PE_MSK)
+                port->icount.parity++;
+        else if (rds & UART_RDS_FE_MSK)
+                port->icount.frame++;
+        if (rds & UART_RDS_OE_MSK)
+                port->icount.overrun++;
+
+        if (rds & port->ignore_status_mask) {
+                if (++ignored > 100)
+                        goto out;
+                goto ignore_char;
+        }
+        rds &= port->read_status_mask;
+
+        if (rds & UART_RDS_BI_MSK)
+                flg = TTY_BREAK;
+        else if (rds & UART_RDS_PE_MSK)
+                flg = TTY_PARITY;
+        else if (rds & UART_RDS_FE_MSK)
+                flg = TTY_FRAME;
+
+        if (rds & UART_RDS_OE_MSK) {
+                /*
+                 * CHECK: does overrun affect the current character?
+                 * ASSUMPTION: it does not.
+                 */
+                tty_insert_flip_char(tty, ch, flg);
+                ch = 0;
+                flg = TTY_OVERRUN;
+        }
+#ifdef SUPPORT_SYSRQ
+        port->sysrq = 0;
+#endif
+        goto error_return;
+}
+
+static void uart00_tx_chars(struct uart_port *port)
+{
+        struct circ_buf *xmit = &port->info->xmit;
+        int count;
+
+        if (port->x_char) {
+                while ((UART_GET_TSR(port) & UART_TSR_TX_LEVEL_MSK) == 15)
+                        barrier();
+                UART_PUT_CHAR(port, port->x_char);
+                port->icount.tx++;
+                port->x_char = 0;
+                return;
+        }
+        if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {
+                uart00_stop_tx(port, 0);
+                return;
+        }
+
+        count = port->fifosize >> 1;
+        do {
+                while ((UART_GET_TSR(port) & UART_TSR_TX_LEVEL_MSK) == 15)
+                        barrier();
+                UART_PUT_CHAR(port, xmit->buf[xmit->tail]);
+                xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
+                port->icount.tx++;
+                if (uart_circ_empty(xmit))
+                        break;
+        } while (--count > 0);
+
+        if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
+                uart_write_wakeup(port);
+
+        if (uart_circ_empty(xmit))
+                uart00_stop_tx(port, 0);
+}
+
+static void uart00_start_tx(struct uart_port *port, unsigned int tty_start)
+{
+        UART_PUT_IES(port, UART_IES_TIE_MSK);
+        uart00_tx_chars(port);
+}
+
+static void uart00_modem_status(struct uart_port *port)
+{
+        unsigned int status;
+
+        status = UART_GET_MSR(port);
+
+        if (!(status & (UART_MSR_DCTS_MSK | UART_MSR_DDSR_MSK | 
+                        UART_MSR_TERI_MSK | UART_MSR_DDCD_MSK)))
+                return;
+
+        if (status & UART_MSR_DDCD_MSK)
+                uart_handle_dcd_change(port, status & UART_MSR_DCD_MSK);
+
+        if (status & UART_MSR_DDSR_MSK)
+                port->icount.dsr++;
+
+        if (status & UART_MSR_DCTS_MSK)
+                uart_handle_cts_change(port, status & UART_MSR_CTS_MSK);
+
+        wake_up_interruptible(&port->info->delta_msr_wait);
+}
+
+static irqreturn_t uart00_int(int irq, void *dev_id, struct pt_regs *regs)
+{
+        struct uart_port *port = dev_id;
+        unsigned int status, pass_counter = 0;
+
+        status = UART_GET_INT_STATUS(port);
+        do {
+                if (status & UART_ISR_RI_MSK)
+                        uart00_rx_chars(port, regs);
+                if (status & UART_ISR_MI_MSK)
+                        uart00_modem_status(port);
+                if (status & (UART_ISR_TI_MSK | UART_ISR_TII_MSK))
+                        uart00_tx_chars(port);
+                if (pass_counter++ > UART00_ISR_PASS_LIMIT)
+                        break;
+
+                status = UART_GET_INT_STATUS(port);
+        } while (status);
+
+        return IRQ_HANDLED;
+}
+
+static unsigned int uart00_tx_empty(struct uart_port *port)
+{
+        return UART_GET_TSR(port) & UART_TSR_TX_LEVEL_MSK? 0 : TIOCSER_TEMT;
+}
+
+static unsigned int uart00_get_mctrl(struct uart_port *port)
+{
+        unsigned int result = 0;
+        unsigned int status;
+
+        status = UART_GET_MSR(port);
+        if (status & UART_MSR_DCD_MSK)
+                result |= TIOCM_CAR;
+        if (status & UART_MSR_DSR_MSK)
+                result |= TIOCM_DSR;
+        if (status & UART_MSR_CTS_MSK)
+                result |= TIOCM_CTS;
+        if (status & UART_MSR_RI_MSK)
+                result |= TIOCM_RI;
+
+        return result;
+}
+
+static void uart00_set_mctrl_null(struct uart_port *port, unsigned int mctrl)
+{
+}
+
+static void uart00_break_ctl(struct uart_port *port, int break_state)
+{
+        unsigned long flags;
+        unsigned int mcr;
+
+        spin_lock_irqsave(&port->lock, flags);
+        mcr = UART_GET_MCR(port);
+        if (break_state == -1)
+                mcr |= UART_MCR_BR_MSK;
+        else
+                mcr &= ~UART_MCR_BR_MSK;
+        UART_PUT_MCR(port, mcr);
+        spin_unlock_irqrestore(&port->lock, flags);
+}
+
+static void
+uart00_set_termios(struct uart_port *port, struct termios *termios,
+                   struct termios *old)
+{
+        unsigned int uart_mc, old_ies, baud, quot;
+        unsigned long flags;
+
+        /*
+         * We don't support CREAD (yet)
+         */
+        termios->c_cflag |= CREAD;
+
+        /*
+         * Ask the core to calculate the divisor for us.
+         */
+        baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk/16); 
+        quot = uart_get_divisor(port, baud);
+
+        /* byte size and parity */
+        switch (termios->c_cflag & CSIZE) {
+        case CS5:
+                uart_mc = UART_MC_CLS_CHARLEN_5;
+                break;
+        case CS6:
+                uart_mc = UART_MC_CLS_CHARLEN_6;
+                break;
+        case CS7:
+                uart_mc = UART_MC_CLS_CHARLEN_7;
+                break;
+        default: // CS8
+                uart_mc = UART_MC_CLS_CHARLEN_8;
+                break;
+        }
+        if (termios->c_cflag & CSTOPB)
+                uart_mc|= UART_MC_ST_TWO;
+        if (termios->c_cflag & PARENB) {
+                uart_mc |= UART_MC_PE_MSK;
+                if (!(termios->c_cflag & PARODD))
+                        uart_mc |= UART_MC_EP_MSK;
+        }
+
+        spin_lock_irqsave(&port->lock, flags);
+
+        /*
+         * Update the per-port timeout.
+         */
+        uart_update_timeout(port, termios->c_cflag, baud);
+
+        port->read_status_mask = UART_RDS_OE_MSK;
+        if (termios->c_iflag & INPCK)
+                port->read_status_mask |= UART_RDS_FE_MSK | UART_RDS_PE_MSK;
+        if (termios->c_iflag & (BRKINT | PARMRK))
+                port->read_status_mask |= UART_RDS_BI_MSK;
+
+        /*
+         * Characters to ignore
+         */
+        port->ignore_status_mask = 0;
+        if (termios->c_iflag & IGNPAR)
+                port->ignore_status_mask |= UART_RDS_FE_MSK | UART_RDS_PE_MSK;
+        if (termios->c_iflag & IGNBRK) {
+                port->ignore_status_mask |= UART_RDS_BI_MSK;
+                /*
+                 * If we're ignoring parity and break indicators,
+                 * ignore overruns to (for real raw support).
+                 */
+                if (termios->c_iflag & IGNPAR)
+                        port->ignore_status_mask |= UART_RDS_OE_MSK;
+        }
+
+        /* first, disable everything */
+        old_ies = UART_GET_IES(port); 
+
+        if (UART_ENABLE_MS(port, termios->c_cflag))
+                old_ies |= UART_IES_ME_MSK;
+
+        /* Set baud rate */
+        UART_PUT_DIV_LO(port, (quot & 0xff));
+        UART_PUT_DIV_HI(port, ((quot & 0xf00) >> 8));
+
+        UART_PUT_MC(port, uart_mc);
+        UART_PUT_IES(port, old_ies);
+
+        spin_unlock_irqrestore(&port->lock, flags);
+}
+
+static int uart00_startup(struct uart_port *port)
+{
+        int result;
+
+        /*
+         * Allocate the IRQ
+         */
+        result = request_irq(port->irq, uart00_int, 0, "uart00", port);
+        if (result) {
+                printk(KERN_ERR "Request of irq %d failed\n", port->irq);
+                return result;
+        }
+
+        /*
+         * Finally, enable interrupts. Use the TII interrupt to minimise 
+         * the number of interrupts generated. If higher performance is 
+         * needed, consider using the TI interrupt with a suitable FIFO
+         * threshold
+         */
+        UART_PUT_IES(port, UART_IES_RE_MSK | UART_IES_TIE_MSK);
+
+        return 0;
+}
+
+static void uart00_shutdown(struct uart_port *port)
+{
+        /*
+         * disable all interrupts, disable the port
+         */
+        UART_PUT_IEC(port, 0xff);
+
+        /* disable break condition and fifos */
+        UART_PUT_MCR(port, UART_GET_MCR(port) &~UART_MCR_BR_MSK);
+
+        /*
+         * Free the interrupt
+         */
+        free_irq(port->irq, port);
+}
+
+static const char *uart00_type(struct uart_port *port)
+{
+        return port->type == PORT_UART00 ? "Altera UART00" : NULL;
+}
+
+/*
+ * Release the memory region(s) being used by 'port'
+ */
+static void uart00_release_port(struct uart_port *port)
+{
+        release_mem_region(port->mapbase, UART_PORT_SIZE);
+
+#ifdef CONFIG_ARCH_CAMELOT
+        if (port->membase != (void*)IO_ADDRESS(EXC_UART00_BASE)) {
+                iounmap(port->membase);
+        }
+#endif
+}
+
+/*
+ * Request the memory region(s) being used by 'port'
+ */
+static int uart00_request_port(struct uart_port *port)
+{
+        return request_mem_region(port->mapbase, UART_PORT_SIZE, "serial_uart00")
+                        != NULL ? 0 : -EBUSY;
+}
+
+/*
+ * Configure/autoconfigure the port.
+ */
+static void uart00_config_port(struct uart_port *port, int flags)
+{
+
+        /*
+         * Map the io memory if this is a soft uart
+         */
+        if (!port->membase)
+                port->membase = ioremap_nocache(port->mapbase,SZ_4K);
+
+        if (!port->membase)
+                printk(KERN_ERR "serial00: cannot map io memory\n");
+        else
+                port->type = PORT_UART00;
+
+}
+
+/*
+ * verify the new serial_struct (for TIOCSSERIAL).
+ */
+static int uart00_verify_port(struct uart_port *port, struct serial_struct *ser)
+{
+        int ret = 0;
+        if (ser->type != PORT_UNKNOWN && ser->type != PORT_UART00)
+                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 uart00_pops = {
+        .tx_empty       = uart00_tx_empty,
+        .set_mctrl      = uart00_set_mctrl_null,
+        .get_mctrl      = uart00_get_mctrl,
+        .stop_tx        = uart00_stop_tx,
+        .start_tx       = uart00_start_tx,
+        .stop_rx        = uart00_stop_rx,
+        .enable_ms      = uart00_enable_ms,
+        .break_ctl      = uart00_break_ctl,
+        .startup        = uart00_startup,
+        .shutdown       = uart00_shutdown,
+        .set_termios    = uart00_set_termios,
+        .type           = uart00_type,
+        .release_port   = uart00_release_port,
+        .request_port   = uart00_request_port,
+        .config_port    = uart00_config_port,
+        .verify_port    = uart00_verify_port,
+};
+
+
+#ifdef CONFIG_ARCH_CAMELOT
+static struct uart_port epxa10db_port = {
+        .membase        = (void*)IO_ADDRESS(EXC_UART00_BASE),
+        .mapbase        = EXC_UART00_BASE,
+        .iotype         = SERIAL_IO_MEM,
+        .irq            = IRQ_UART,
+        .uartclk        = EXC_AHB2_CLK_FREQUENCY,
+        .fifosize       = 16,
+        .ops            = &uart00_pops,
+        .flags          = ASYNC_BOOT_AUTOCONF,
+};
+#endif
+
+
+#ifdef CONFIG_SERIAL_UART00_CONSOLE
+static void uart00_console_write(struct console *co, const char *s, unsigned count)
+{
+#ifdef CONFIG_ARCH_CAMELOT
+        struct uart_port *port = &epxa10db_port;
+        unsigned int status, old_ies;
+        int i;
+
+        /*
+         *      First save the CR then disable the interrupts
+         */
+        old_ies = UART_GET_IES(port);
+        UART_PUT_IEC(port,0xff);
+
+        /*
+         *      Now, do each character
+         */
+        for (i = 0; i < count; i++) {
+                do {
+                        status = UART_GET_TSR(port);
+                } while (!UART_TX_READY(status));
+                UART_PUT_CHAR(port, s[i]);
+                if (s[i] == '\n') {
+                        do {
+                                status = UART_GET_TSR(port);
+                        } while (!UART_TX_READY(status));
+                        UART_PUT_CHAR(port, '\r');
+                }
+        }
+
+        /*
+         *      Finally, wait for transmitter to become empty
+         *      and restore the IES
+         */
+        do {
+                status = UART_GET_TSR(port);
+        } while (status & UART_TSR_TX_LEVEL_MSK);
+        UART_PUT_IES(port, old_ies);
+#endif
+}
+
+static void __init
+uart00_console_get_options(struct uart_port *port, int *baud,
+                           int *parity, int *bits)
+{
+        unsigned int uart_mc, quot;
+
+        uart_mc = UART_GET_MC(port);
+
+        *parity = 'n';
+        if (uart_mc & UART_MC_PE_MSK) {
+                if (uart_mc & UART_MC_EP_MSK)
+                        *parity = 'e';
+                else
+                        *parity = 'o';
+        }
+
+        switch (uart_mc & UART_MC_CLS_MSK) {
+        case UART_MC_CLS_CHARLEN_5:
+                *bits = 5;
+                break;
+        case UART_MC_CLS_CHARLEN_6:
+                *bits = 6;
+                break;
+        case UART_MC_CLS_CHARLEN_7:
+                *bits = 7;
+                break;
+        case UART_MC_CLS_CHARLEN_8:
+                *bits = 8;
+                break;
+        }
+        quot = UART_GET_DIV_LO(port) | (UART_GET_DIV_HI(port) << 8);
+        *baud = port->uartclk / (16 *quot );
+}
+
+static int __init uart00_console_setup(struct console *co, char *options)
+{
+        struct uart_port *port;
+        int baud = 115200;
+        int bits = 8;
+        int parity = 'n';
+        int flow = 'n';
+
+#ifdef CONFIG_ARCH_CAMELOT
+        port = &epxa10db_port;             ;
+#else
+        return -ENODEV;
+#endif
+        if (options)
+                uart_parse_options(options, &baud, &parity, &bits, &flow);
+        else
+                uart00_console_get_options(port, &baud, &parity, &bits);
+
+        return uart_set_options(port, co, baud, parity, bits, flow);
+}
+
+extern struct uart_driver uart00_reg;
+static struct console uart00_console = {
+        .name           = SERIAL_UART00_NAME,
+        .write          = uart00_console_write,
+        .device         = uart_console_device,
+        .setup          = uart00_console_setup,
+        .flags          = CON_PRINTBUFFER,
+        .index          = 0,
+        .data           = &uart00_reg,
+};
+
+static int __init uart00_console_init(void)
+{
+        register_console(&uart00_console);
+        return 0;
+}
+console_initcall(uart00_console_init);
+
+#define UART00_CONSOLE  &uart00_console
+#else
+#define UART00_CONSOLE  NULL
+#endif
+
+static struct uart_driver uart00_reg = {
+        .owner                  = NULL,
+        .driver_name            = SERIAL_UART00_NAME,
+        .dev_name               = SERIAL_UART00_NAME,
+        .major                  = SERIAL_UART00_MAJOR,
+        .minor                  = SERIAL_UART00_MINOR,
+        .nr                     = UART_NR,
+        .cons                   = UART00_CONSOLE,
+};
+
+struct dev_port_entry{
+        unsigned int base_addr;
+        struct uart_port *port;
+};
+
+#ifdef CONFIG_PLD_HOTSWAP
+
+static struct dev_port_entry dev_port_map[UART_NR];
+
+/*
+ * Keep a mapping of dev_info addresses -> port lines to use when
+ * removing ports dev==NULL indicates unused entry
+ */
+
+struct uart00_ps_data{
+        unsigned int clk;
+        unsigned int fifosize;
+};
+
+int uart00_add_device(struct pldhs_dev_info* dev_info, void* dev_ps_data)
+{
+        struct uart00_ps_data* dev_ps=dev_ps_data;
+        struct uart_port * port;
+        int i,result;
+
+        i=0;
+        while(dev_port_map[i].port)
+                i++;
+
+        if(i==UART_NR){
+                printk(KERN_WARNING "uart00: Maximum number of ports reached\n");
+                return 0;
+        }
+
+        port=kmalloc(sizeof(struct uart_port),GFP_KERNEL);
+        if(!port)
+                return -ENOMEM;
+
+        printk("clk=%d fifo=%d\n",dev_ps->clk,dev_ps->fifosize);
+        port->membase=0;
+        port->mapbase=dev_info->base_addr;
+        port->iotype=SERIAL_IO_MEM;
+        port->irq=dev_info->irq;
+        port->uartclk=dev_ps->clk;
+        port->fifosize=dev_ps->fifosize;
+        port->ops=&uart00_pops;
+        port->line=i;
+        port->flags=ASYNC_BOOT_AUTOCONF;
+
+        result=uart_add_one_port(&uart00_reg, port);
+        if(result){
+                printk("uart_add_one_port returned %d\n",result);
+                return result;
+        }
+        dev_port_map[i].base_addr=dev_info->base_addr;
+        dev_port_map[i].port=port;
+        printk("uart00: added device at %x as ttyUA%d\n",dev_port_map[i].base_addr,i);
+        return 0;
+
+}
+
+int uart00_remove_devices(void)
+{
+        int i,result;
+
+
+        result=0;
+        for(i=1;i<UART_NR;i++){
+                if(dev_port_map[i].base_addr){
+                        result=uart_remove_one_port(&uart00_reg, dev_port_map[i].port);
+                        if(result)
+                                return result;
+
+                        /* port removed sucessfully, so now tidy up */
+                        kfree(dev_port_map[i].port);
+                        dev_port_map[i].base_addr=0;
+                        dev_port_map[i].port=NULL;
+                }
+        }
+        return 0;
+
+}
+
+struct pld_hotswap_ops uart00_pldhs_ops={
+        .name           = "uart00",
+        .add_device     = uart00_add_device,
+        .remove_devices = uart00_remove_devices,
+};
+
+#endif
+
+static int __init uart00_init(void)
+{
+        int result;
+
+        printk(KERN_INFO "Serial: UART00 driver $Revision: 1.35 $\n");
+
+        printk(KERN_WARNING "serial_uart00:Using temporary major/minor pairs"
+                " - these WILL change in the future\n");
+
+        result = uart_register_driver(&uart00_reg);
+        if (result)
+                return result;
+#ifdef CONFIG_ARCH_CAMELOT
+        result = uart_add_one_port(&uart00_reg,&epxa10db_port);
+#endif
+        if (result)
+                uart_unregister_driver(&uart00_reg);
+
+#ifdef  CONFIG_PLD_HOTSWAP
+        pldhs_register_driver(&uart00_pldhs_ops);
+#endif
+        return result;
+}
+
+__initcall(uart00_init);