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);