upgrade sibyte to 2.6.24

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@10442 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 0 insertions, 1025 deletions

diff --git a/target/linux/sibyte/patches/000-DUART.patch b/target/linux/sibyte/patches/000-DUART.patch
deleted file mode 100644
index 468d9dface..0000000000
--- a/target/linux/sibyte/patches/000-DUART.patch
+++ /dev/null
@@ -1,1025 +0,0 @@
-diff -Nur linux-2.6.21.1/drivers/char/Kconfig linux-2.6.21.1-owrt/drivers/char/Kconfig
---- linux-2.6.21.1/drivers/char/Kconfig	2007-04-27 23:49:26.000000000 +0200
-+++ linux-2.6.21.1-owrt/drivers/char/Kconfig	2007-05-24 22:28:54.000000000 +0200
-@@ -386,6 +386,14 @@
- 	  If you have an Alchemy AU1000 processor (MIPS based) and you want
- 	  to use a console on a serial port, say Y.  Otherwise, say N.
- 
-+config SIBYTE_SB1250_DUART
-+	bool "Support for BCM1xxx onchip DUART"
-+	depends on MIPS && SIBYTE_SB1xxx_SOC=y
-+
-+config SIBYTE_SB1250_DUART_CONSOLE
-+	bool "Console on BCM1xxx DUART"
-+	depends on SIBYTE_SB1250_DUART
-+
- config SERIAL_DEC
- 	bool "DECstation serial support"
- 	depends on MACH_DECSTATION
-diff -Nur linux-2.6.21.1/drivers/char/Makefile linux-2.6.21.1-owrt/drivers/char/Makefile
---- linux-2.6.21.1/drivers/char/Makefile	2007-04-27 23:49:26.000000000 +0200
-+++ linux-2.6.21.1-owrt/drivers/char/Makefile	2007-05-24 22:32:31.000000000 +0200
-@@ -32,6 +32,7 @@
- obj-$(CONFIG_ATARI_DSP56K)	+= dsp56k.o
- obj-$(CONFIG_MOXA_SMARTIO)	+= mxser.o
- obj-$(CONFIG_MOXA_SMARTIO_NEW)	+= mxser_new.o
-+obj-$(CONFIG_SIBYTE_SB1250_DUART) += sb1250_duart.o
- obj-$(CONFIG_COMPUTONE)		+= ip2/
- obj-$(CONFIG_RISCOM8)		+= riscom8.o
- obj-$(CONFIG_ISI)		+= isicom.o
-diff -Nur linux-2.6.21.1/drivers/char/sb1250_duart.c linux-2.6.21.1-owrt/drivers/char/sb1250_duart.c
---- linux-2.6.21.1/drivers/char/sb1250_duart.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.21.1-owrt/drivers/char/sb1250_duart.c	2007-05-24 22:10:12.000000000 +0200
-@@ -0,0 +1,979 @@
-+/*
-+ * Copyright (C) 2000,2001,2002,2003,2004 Broadcom Corporation
-+ *
-+ * 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.
-+ */
-+
-+/*
-+ * Driver support for the on-chip sb1250 dual-channel serial port,
-+ * running in asynchronous mode.  Also, support for doing a serial console
-+ * on one of those ports
-+ */
-+#include <linux/types.h>
-+#include <linux/kernel.h>
-+#include <linux/serial.h>
-+#include <linux/interrupt.h>
-+#include <linux/module.h>
-+#include <linux/console.h>
-+#include <linux/kdev_t.h>
-+#include <linux/major.h>
-+#include <linux/termios.h>
-+#include <linux/spinlock.h>
-+#include <linux/irq.h>
-+#include <linux/errno.h>
-+#include <linux/tty.h>
-+#include <linux/sched.h>
-+#include <linux/tty_flip.h>
-+#include <linux/timer.h>
-+#include <linux/init.h>
-+#include <linux/mm.h>
-+#include <asm/delay.h>
-+#include <asm/io.h>
-+#include <asm/uaccess.h>
-+#include <asm/sibyte/swarm.h>
-+#include <asm/sibyte/sb1250.h>
-+#if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80)
-+#include <asm/sibyte/bcm1480_regs.h>
-+#include <asm/sibyte/bcm1480_int.h>
-+#elif defined(CONFIG_SIBYTE_SB1250) || defined(CONFIG_SIBYTE_BCM112X)
-+#include <asm/sibyte/sb1250_regs.h>
-+#include <asm/sibyte/sb1250_int.h>
-+#else
-+#error invalid SiByte UART configuation
-+#endif
-+#include <asm/sibyte/sb1250_uart.h>
-+#include <asm/war.h>
-+
-+#if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80)
-+#define UNIT_CHANREG(n,reg)	A_BCM1480_DUART_CHANREG((n),(reg))
-+#define UNIT_IMRREG(n)		A_BCM1480_DUART_IMRREG(n)
-+#define UNIT_INT(n)		(K_BCM1480_INT_UART_0 + (n))
-+#elif defined(CONFIG_SIBYTE_SB1250) || defined(CONFIG_SIBYTE_BCM112X)
-+#define UNIT_CHANREG(n,reg)	A_DUART_CHANREG((n),(reg))
-+#define UNIT_IMRREG(n)		A_DUART_IMRREG(n)
-+#define UNIT_INT(n)		(K_INT_UART_0 + (n))
-+#else
-+#error invalid SiByte UART configuation
-+#endif
-+
-+/* Toggle spewing of debugging output */
-+#undef DEBUG
-+
-+#define DEFAULT_CFLAGS          (CS8 | B115200)
-+
-+#define TX_INTEN          1
-+#define DUART_INITIALIZED 2
-+
-+#define DUART_MAX_LINE 4
-+char sb1250_duart_present[DUART_MAX_LINE];
-+EXPORT_SYMBOL(sb1250_duart_present);
-+
-+/*
-+ * In bug 1956, we get glitches that can mess up uart registers.  This
-+ * "read-mode-reg after any register access" is an accepted workaround.
-+ */
-+#if SIBYTE_1956_WAR
-+# define SB1_SER1956_WAR {							\
-+	u32 ignore;										\
-+	ignore = csr_in32(uart_states[line].mode_1);	\
-+	ignore = csr_in32(uart_states[line].mode_2);	\
-+	}
-+#else
-+# define SB1_SER1956_WAR
-+#endif
-+
-+/*
-+ * Still not sure what the termios structures set up here are for,
-+ *  but we have to supply pointers to them to register the tty driver
-+ */
-+static struct tty_driver *sb1250_duart_driver; //, sb1250_duart_callout_driver;
-+
-+/*
-+ * This lock protects both the open flags for all the uart states as
-+ * well as the reference count for the module
-+ */
-+static DEFINE_SPINLOCK(open_lock);
-+
-+typedef struct {
-+	unsigned char		outp_buf[SERIAL_XMIT_SIZE];
-+	unsigned int		outp_head;
-+	unsigned int		outp_tail;
-+	unsigned int		outp_count;
-+	spinlock_t		outp_lock;
-+	unsigned int		open;
-+	unsigned int		line;
-+	unsigned int		last_cflags;
-+	unsigned long		flags;
-+	struct tty_struct	*tty;
-+
-+	/* CSR addresses */
-+	unsigned int		*status;
-+	unsigned int		*imr;
-+	unsigned int		*tx_hold;
-+	unsigned int		*rx_hold;
-+	unsigned int		*mode_1;
-+	unsigned int		*mode_2;
-+	unsigned int		*clk_sel;
-+	unsigned int		*cmd;
-+} uart_state_t;
-+
-+static uart_state_t uart_states[DUART_MAX_LINE];
-+
-+/*
-+ * Inline functions local to this module
-+ */
-+
-+static inline u32 READ_SERCSR(volatile u32 *addr, int line)
-+{
-+	u32 val = csr_in32(addr);
-+	SB1_SER1956_WAR;
-+	return val;
-+}
-+
-+static inline void WRITE_SERCSR(u32 val, volatile u32 *addr, int line)
-+{
-+	csr_out32(val, addr);
-+	SB1_SER1956_WAR;
-+}
-+
-+static void init_duart_port(uart_state_t *port, int line)
-+{
-+	if (!(port->flags & DUART_INITIALIZED)) {
-+		port->line = line;
-+		port->status = IOADDR(UNIT_CHANREG(line, R_DUART_STATUS));
-+		port->imr = IOADDR(UNIT_IMRREG(line));
-+		port->tx_hold = IOADDR(UNIT_CHANREG(line, R_DUART_TX_HOLD));
-+		port->rx_hold = IOADDR(UNIT_CHANREG(line, R_DUART_RX_HOLD));
-+		port->mode_1 = IOADDR(UNIT_CHANREG(line, R_DUART_MODE_REG_1));
-+		port->mode_2 = IOADDR(UNIT_CHANREG(line, R_DUART_MODE_REG_2));
-+		port->clk_sel = IOADDR(UNIT_CHANREG(line, R_DUART_CLK_SEL));
-+		port->cmd = IOADDR(UNIT_CHANREG(line, R_DUART_CMD));
-+		port->last_cflags = DEFAULT_CFLAGS;
-+		spin_lock_init(&port->outp_lock);
-+		port->flags |= DUART_INITIALIZED;
-+	}
-+}
-+
-+/*
-+ * Mask out the passed interrupt lines at the duart level.  This should be
-+ * called while holding the associated outp_lock.
-+ */
-+static inline void duart_mask_ints(unsigned int line, unsigned int mask)
-+{
-+	uart_state_t *port = uart_states + line;
-+	u64 tmp = READ_SERCSR(port->imr, line);
-+	WRITE_SERCSR(tmp & ~mask, port->imr, line);
-+}
-+
-+
-+/* Unmask the passed interrupt lines at the duart level */
-+static inline void duart_unmask_ints(unsigned int line, unsigned int mask)
-+{
-+	uart_state_t *port = uart_states + line;
-+	u64 tmp = READ_SERCSR(port->imr, line);
-+	WRITE_SERCSR(tmp | mask, port->imr, line);
-+}
-+
-+static inline void transmit_char_pio(uart_state_t *us)
-+{
-+	struct tty_struct *tty = us->tty;
-+	int blocked = 0;
-+
-+	if (spin_trylock(&us->outp_lock)) {
-+		for (;;) {
-+			if (!(READ_SERCSR(us->status, us->line) & M_DUART_TX_RDY))
-+				break;
-+			if (us->outp_count <= 0 || tty->stopped || tty->hw_stopped) {
-+				break;
-+			} else {
-+				WRITE_SERCSR(us->outp_buf[us->outp_head],
-+					     us->tx_hold, us->line);
-+				us->outp_head = (us->outp_head + 1) & (SERIAL_XMIT_SIZE-1);
-+				if (--us->outp_count <= 0)
-+					break;
-+			}
-+			udelay(10);
-+		}
-+		spin_unlock(&us->outp_lock);
-+	} else {
-+		blocked = 1;
-+	}
-+
-+	if (!us->outp_count || tty->stopped ||
-+	    tty->hw_stopped || blocked) {
-+		us->flags &= ~TX_INTEN;
-+		duart_mask_ints(us->line, M_DUART_IMR_TX);
-+	}
-+
-+	if (us->open &&
-+	    (us->outp_count < (SERIAL_XMIT_SIZE/2))) {
-+		/*
-+		 * We told the discipline at one point that we had no
-+		 * space, so it went to sleep.  Wake it up when we hit
-+		 * half empty
-+		 */
-+		if ((tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) &&
-+		    tty->ldisc.write_wakeup)
-+			tty->ldisc.write_wakeup(tty);
-+		wake_up_interruptible(&tty->write_wait);
-+	}
-+}
-+
-+/*
-+ * Generic interrupt handler for both channels.  dev_id is a pointer
-+ * to the proper uart_states structure, so from that we can derive
-+ * which port interrupted
-+ */
-+
-+static irqreturn_t duart_int(int irq, void *dev_id)
-+{
-+	uart_state_t *us = (uart_state_t *)dev_id;
-+	struct tty_struct *tty = us->tty;
-+	unsigned int status = READ_SERCSR(us->status, us->line);
-+
-+	pr_debug("DUART INT\n");
-+
-+	if (status & M_DUART_RX_RDY) {
-+		int counter = 2048;
-+		unsigned int ch;
-+
-+		if (status & M_DUART_OVRUN_ERR)
-+			tty_insert_flip_char(tty, 0, TTY_OVERRUN);
-+		if (status & M_DUART_PARITY_ERR) {
-+			printk("Parity error!\n");
-+		} else if (status & M_DUART_FRM_ERR) {
-+			printk("Frame error!\n");
-+		}
-+
-+		while (counter > 0) {
-+			if (!(READ_SERCSR(us->status, us->line) & M_DUART_RX_RDY))
-+				break;
-+			ch = READ_SERCSR(us->rx_hold, us->line);
-+			tty_insert_flip_char(tty, ch, 0);
-+			udelay(1);
-+			counter--;
-+		}
-+		tty_flip_buffer_push(tty);
-+	}
-+
-+	if (status & M_DUART_TX_RDY) {
-+		transmit_char_pio(us);
-+	}
-+
-+	return IRQ_HANDLED;
-+}
-+
-+/*
-+ *  Actual driver functions
-+ */
-+
-+/* Return the number of characters we can accomodate in a write at this instant */
-+static int duart_write_room(struct tty_struct *tty)
-+{
-+	uart_state_t *us = (uart_state_t *) tty->driver_data;
-+	int retval;
-+
-+	retval = SERIAL_XMIT_SIZE - us->outp_count;
-+
-+	pr_debug("duart_write_room called, returning %i\n", retval);
-+
-+	return retval;
-+}
-+
-+/* memcpy the data from src to destination, but take extra care if the
-+   data is coming from user space */
-+static inline int copy_buf(char *dest, const char *src, int size, int from_user)
-+{
-+	if (from_user) {
-+		(void) copy_from_user(dest, src, size);
-+	} else {
-+		memcpy(dest, src, size);
-+	}
-+	return size;
-+}
-+
-+/*
-+ * Buffer up to count characters from buf to be written.  If we don't have
-+ * other characters buffered, enable the tx interrupt to start sending
-+ */
-+static int duart_write(struct tty_struct *tty, const unsigned char *buf,
-+		       int count)
-+{
-+	uart_state_t *us;
-+	int c, t, total = 0;
-+	unsigned long flags;
-+
-+	if (!tty) return 0;
-+
-+	us = tty->driver_data;
-+	if (!us) return 0;
-+
-+	pr_debug("duart_write called for %i chars by %i (%s)\n", count,
-+			current->pid, current->comm);
-+
-+	spin_lock_irqsave(&us->outp_lock, flags);
-+
-+	for (;;) {
-+		c = count;
-+
-+		t = SERIAL_XMIT_SIZE - us->outp_tail;
-+		if (t < c) c = t;
-+
-+		t = SERIAL_XMIT_SIZE - 1 - us->outp_count;
-+		if (t < c) c = t;
-+
-+		if (c <= 0) break;
-+
-+		memcpy(us->outp_buf + us->outp_tail, buf, c);
-+
-+		us->outp_count += c;
-+		us->outp_tail = (us->outp_tail + c) & (SERIAL_XMIT_SIZE - 1);
-+		buf += c;
-+		count -= c;
-+		total += c;
-+	}
-+
-+	spin_unlock_irqrestore(&us->outp_lock, flags);
-+
-+	if (us->outp_count && !tty->stopped &&
-+	    !tty->hw_stopped && !(us->flags & TX_INTEN)) {
-+		us->flags |= TX_INTEN;
-+		duart_unmask_ints(us->line, M_DUART_IMR_TX);
-+	}
-+
-+	return total;
-+}
-+
-+
-+/* Buffer one character to be written.  If there's not room for it, just drop
-+   it on the floor.  This is used for echo, among other things */
-+static void duart_put_char(struct tty_struct *tty, u_char ch)
-+{
-+	uart_state_t *us = (uart_state_t *) tty->driver_data;
-+	unsigned long flags;
-+
-+	pr_debug("duart_put_char called.  Char is %x (%c)\n", (int)ch, ch);
-+
-+	spin_lock_irqsave(&us->outp_lock, flags);
-+
-+	if (us->outp_count == SERIAL_XMIT_SIZE) {
-+		spin_unlock_irqrestore(&us->outp_lock, flags);
-+		return;
-+	}
-+
-+	us->outp_buf[us->outp_tail] = ch;
-+	us->outp_tail = (us->outp_tail + 1) &(SERIAL_XMIT_SIZE-1);
-+	us->outp_count++;
-+
-+	spin_unlock_irqrestore(&us->outp_lock, flags);
-+}
-+
-+static void duart_flush_chars(struct tty_struct * tty)
-+{
-+	uart_state_t *port;
-+
-+	if (!tty)
-+		return;
-+
-+	port = tty->driver_data;
-+
-+	if (!port)
-+		return;
-+
-+	if (port->outp_count <= 0 || tty->stopped || tty->hw_stopped) {
-+		return;
-+	}
-+
-+	port->flags |= TX_INTEN;
-+	duart_unmask_ints(port->line, M_DUART_IMR_TX);
-+}
-+
-+/* Return the number of characters in the output buffer that have yet to be
-+   written */
-+static int duart_chars_in_buffer(struct tty_struct *tty)
-+{
-+	uart_state_t *us = (uart_state_t *) tty->driver_data;
-+	int retval;
-+
-+	retval = us->outp_count;
-+
-+	pr_debug("duart_chars_in_buffer returning %i\n", retval);
-+
-+	return retval;
-+}
-+
-+/* Kill everything we haven't yet shoved into the FIFO.  Turn off the
-+   transmit interrupt since we've nothing more to transmit */
-+static void duart_flush_buffer(struct tty_struct *tty)
-+{
-+	uart_state_t *us = (uart_state_t *) tty->driver_data;
-+	unsigned long flags;
-+
-+	pr_debug("duart_flush_buffer called\n");
-+	spin_lock_irqsave(&us->outp_lock, flags);
-+	us->outp_head = us->outp_tail = us->outp_count = 0;
-+	spin_unlock_irqrestore(&us->outp_lock, flags);
-+
-+	wake_up_interruptible(&us->tty->write_wait);
-+	if ((tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) &&
-+	    tty->ldisc.write_wakeup)
-+		tty->ldisc.write_wakeup(tty);
-+}
-+
-+
-+/* See sb1250 user manual for details on these registers */
-+static inline void duart_set_cflag(unsigned int line, unsigned int cflag)
-+{
-+	unsigned int mode_reg1 = 0, mode_reg2 = 0;
-+	unsigned int clk_divisor;
-+	uart_state_t *port = uart_states + line;
-+
-+	switch (cflag & CSIZE) {
-+	case CS7:
-+		mode_reg1 |= V_DUART_BITS_PER_CHAR_7;
-+
-+	default:
-+		/* We don't handle CS5 or CS6...is there a way we're supposed to
-+		 * flag this?  right now we just force them to CS8 */
-+		mode_reg1 |= 0x0;
-+		break;
-+	}
-+	if (cflag & CSTOPB) {
-+	        mode_reg2 |= M_DUART_STOP_BIT_LEN_2;
-+	}
-+	if (!(cflag & PARENB)) {
-+	        mode_reg1 |= V_DUART_PARITY_MODE_NONE;
-+	}
-+	if (cflag & PARODD) {
-+		mode_reg1 |= M_DUART_PARITY_TYPE_ODD;
-+	}
-+
-+	/* Formula for this is (5000000/baud)-1, but we saturate
-+	   at 12 bits, which means we can't actually do anything less
-+	   that 1200 baud */
-+	switch (cflag & CBAUD) {
-+	case B200:
-+	case B300:
-+	case B1200:	clk_divisor = 4095;		break;
-+	case B1800:	clk_divisor = 2776;		break;
-+	case B2400:	clk_divisor = 2082;		break;
-+	case B4800:	clk_divisor = 1040;		break;
-+	case B9600:	clk_divisor = 519;		break;
-+	case B19200:	clk_divisor = 259;		break;
-+	case B38400:	clk_divisor = 129;		break;
-+	default:
-+	case B57600:	clk_divisor = 85;		break;
-+	case B115200:	clk_divisor = 42;		break;
-+	}
-+	WRITE_SERCSR(mode_reg1, port->mode_1, port->line);
-+	WRITE_SERCSR(mode_reg2, port->mode_2, port->line);
-+	WRITE_SERCSR(clk_divisor, port->clk_sel, port->line);
-+	port->last_cflags = cflag;
-+}
-+
-+
-+/* Handle notification of a termios change.  */
-+static void duart_set_termios(struct tty_struct *tty, struct termios *old)
-+{
-+	uart_state_t *us = (uart_state_t *) tty->driver_data;
-+
-+	pr_debug("duart_set_termios called by %i (%s)\n", current->pid,
-+		current->comm);
-+	if (old && tty->termios->c_cflag == old->c_cflag)
-+		return;
-+	duart_set_cflag(us->line, tty->termios->c_cflag);
-+}
-+
-+static int get_serial_info(uart_state_t *us, struct serial_struct * retinfo)
-+{
-+	struct serial_struct tmp;
-+
-+	memset(&tmp, 0, sizeof(tmp));
-+
-+	tmp.type = PORT_SB1250;
-+	tmp.line = us->line;
-+	tmp.port = UNIT_CHANREG(tmp.line,0);
-+	tmp.irq = UNIT_INT(tmp.line);
-+	tmp.xmit_fifo_size = 16; /* fixed by hw */
-+	tmp.baud_base = 5000000;
-+	tmp.io_type = SERIAL_IO_MEM;
-+
-+	if (copy_to_user(retinfo,&tmp,sizeof(*retinfo)))
-+		return -EFAULT;
-+
-+	return 0;
-+}
-+
-+static int duart_ioctl(struct tty_struct *tty, struct file * file,
-+		       unsigned int cmd, unsigned long arg)
-+{
-+	uart_state_t *us = (uart_state_t *) tty->driver_data;
-+
-+/*	if (serial_paranoia_check(info, tty->device, "rs_ioctl"))
-+	return -ENODEV;*/
-+	switch (cmd) {
-+	case TIOCMGET:
-+		printk("Ignoring TIOCMGET\n");
-+		break;
-+	case TIOCMBIS:
-+		printk("Ignoring TIOCMBIS\n");
-+		break;
-+	case TIOCMBIC:
-+		printk("Ignoring TIOCMBIC\n");
-+		break;
-+	case TIOCMSET:
-+		printk("Ignoring TIOCMSET\n");
-+		break;
-+	case TIOCGSERIAL:
-+		return get_serial_info(us,(struct serial_struct *) arg);
-+	case TIOCSSERIAL:
-+		printk("Ignoring TIOCSSERIAL\n");
-+		break;
-+	case TIOCSERCONFIG:
-+		printk("Ignoring TIOCSERCONFIG\n");
-+		break;
-+	case TIOCSERGETLSR: /* Get line status register */
-+		printk("Ignoring TIOCSERGETLSR\n");
-+		break;
-+	case TIOCSERGSTRUCT:
-+		printk("Ignoring TIOCSERGSTRUCT\n");
-+		break;
-+	case TIOCMIWAIT:
-+		printk("Ignoring TIOCMIWAIT\n");
-+		break;
-+	case TIOCGICOUNT:
-+		printk("Ignoring TIOCGICOUNT\n");
-+		break;
-+	case TIOCSERGWILD:
-+		printk("Ignoring TIOCSERGWILD\n");
-+		break;
-+	case TIOCSERSWILD:
-+		printk("Ignoring TIOCSERSWILD\n");
-+		break;
-+	default:
-+		break;
-+	}
-+//	printk("Ignoring IOCTL %x from pid %i (%s)\n", cmd, current->pid, current->comm);
-+	return -ENOIOCTLCMD;
-+}
-+
-+/* XXXKW locking? */
-+static void duart_start(struct tty_struct *tty)
-+{
-+	uart_state_t *us = (uart_state_t *) tty->driver_data;
-+
-+	pr_debug("duart_start called\n");
-+
-+	if (us->outp_count && !(us->flags & TX_INTEN)) {
-+		us->flags |= TX_INTEN;
-+		duart_unmask_ints(us->line, M_DUART_IMR_TX);
-+	}
-+}
-+
-+/* XXXKW locking? */
-+static void duart_stop(struct tty_struct *tty)
-+{
-+	uart_state_t *us = (uart_state_t *) tty->driver_data;
-+
-+	pr_debug("duart_stop called\n");
-+
-+	if (us->outp_count && (us->flags & TX_INTEN)) {
-+		us->flags &= ~TX_INTEN;
-+		duart_mask_ints(us->line, M_DUART_IMR_TX);
-+	}
-+}
-+
-+/* Not sure on the semantics of this; are we supposed to wait until the stuff
-+ * already in the hardware FIFO drains, or are we supposed to wait until
-+ * we've drained the output buffer, too?  I'm assuming the former, 'cause thats
-+ * what the other drivers seem to assume
-+ */
-+
-+static void duart_wait_until_sent(struct tty_struct *tty, int timeout)
-+{
-+	uart_state_t *us = (uart_state_t *) tty->driver_data;
-+	unsigned long orig_jiffies;
-+
-+	orig_jiffies = jiffies;
-+	pr_debug("duart_wait_until_sent(%d)+\n", timeout);
-+	while (!(READ_SERCSR(us->status, us->line) & M_DUART_TX_EMT)) {
-+		set_current_state(TASK_INTERRUPTIBLE);
-+		schedule_timeout(1);
-+		if (signal_pending(current))
-+			break;
-+		if (timeout && time_after(jiffies, orig_jiffies + timeout))
-+			break;
-+	}
-+	pr_debug("duart_wait_until_sent()-\n");
-+}
-+
-+/*
-+ * duart_hangup() --- called by tty_hangup() when a hangup is signaled.
-+ */
-+static void duart_hangup(struct tty_struct *tty)
-+{
-+	uart_state_t *us = (uart_state_t *) tty->driver_data;
-+
-+	duart_flush_buffer(tty);
-+	us->open = 0;
-+	us->tty = 0;
-+}
-+
-+/*
-+ * Open a tty line.  Note that this can be called multiple times, so ->open can
-+ * be >1.  Only set up the tty struct if this is a "new" open, e.g. ->open was
-+ * zero
-+ */
-+static int duart_open(struct tty_struct *tty, struct file *filp)
-+{
-+	uart_state_t *us;
-+	unsigned int line = tty->index;
-+	unsigned long flags;
-+
-+	if ((line >= tty->driver->num) || !sb1250_duart_present[line])
-+		return -ENODEV;
-+
-+	pr_debug("duart_open called by %i (%s), tty is %p, rw is %p, ww is %p\n",
-+	       current->pid, current->comm, tty, (void *)&tty->read_wait,
-+	       (void *)&tty->write_wait);
-+
-+	us = uart_states + line;
-+	tty->driver_data = us;
-+
-+	spin_lock_irqsave(&open_lock, flags);
-+	if (!us->open) {
-+		us->tty = tty;
-+		us->tty->termios->c_cflag = us->last_cflags;
-+	}
-+	us->open++;
-+	us->flags &= ~TX_INTEN;
-+	duart_unmask_ints(line, M_DUART_IMR_RX);
-+	spin_unlock_irqrestore(&open_lock, flags);
-+
-+	return 0;
-+}
-+
-+
-+/*
-+ * Close a reference count out.  If reference count hits zero, null the
-+ * tty, kill the interrupts.  The tty_io driver is responsible for making
-+ * sure we've cleared out our internal buffers before calling close()
-+ */
-+static void duart_close(struct tty_struct *tty, struct file *filp)
-+{
-+	uart_state_t *us = (uart_state_t *) tty->driver_data;
-+	unsigned long flags;
-+
-+	pr_debug("duart_close called by %i (%s)\n", current->pid, current->comm);
-+
-+	if (!us || !us->open)
-+		return;
-+
-+	spin_lock_irqsave(&open_lock, flags);
-+	if (tty_hung_up_p(filp)) {
-+		spin_unlock_irqrestore(&open_lock, flags);
-+		return;
-+	}
-+
-+	if (--us->open < 0) {
-+		us->open = 0;
-+		printk(KERN_ERR "duart: bad open count: %d\n", us->open);
-+	}
-+	if (us->open) {
-+		spin_unlock_irqrestore(&open_lock, flags);
-+		return;
-+	}
-+
-+	spin_unlock_irqrestore(&open_lock, flags);
-+
-+	tty->closing = 1;
-+
-+	/* Stop accepting input */
-+	duart_mask_ints(us->line, M_DUART_IMR_RX);
-+	/* Wait for FIFO to drain */
-+	while (!(READ_SERCSR(us->status, us->line) & M_DUART_TX_EMT))
-+		;
-+
-+	if (tty->driver->flush_buffer)
-+		tty->driver->flush_buffer(tty);
-+	if (tty->ldisc.flush_buffer)
-+		tty->ldisc.flush_buffer(tty);
-+	tty->closing = 0;
-+}
-+
-+
-+static struct tty_operations duart_ops = {
-+        .open   = duart_open,
-+        .close = duart_close,
-+        .write = duart_write,
-+        .put_char = duart_put_char,
-+        .flush_chars = duart_flush_chars,
-+        .write_room = duart_write_room,
-+        .chars_in_buffer = duart_chars_in_buffer,
-+        .flush_buffer = duart_flush_buffer,
-+        .ioctl = duart_ioctl,
-+//        .throttle = duart_throttle,
-+//        .unthrottle = duart_unthrottle,
-+        .set_termios = duart_set_termios,
-+        .stop = duart_stop,
-+        .start = duart_start,
-+        .hangup = duart_hangup,
-+	.wait_until_sent = duart_wait_until_sent,
-+};
-+
-+/* Initialize the sb1250_duart_present array based on SOC type.  */
-+static void __init sb1250_duart_init_present_lines(void)
-+{
-+	int i, max_lines;
-+
-+	/* Set the number of available units based on the SOC type.  */
-+	switch (soc_type) {
-+	case K_SYS_SOC_TYPE_BCM1x55:
-+	case K_SYS_SOC_TYPE_BCM1x80:
-+		max_lines = 4;
-+		break;
-+	default:
-+		/* Assume at least two serial ports at the normal address.  */
-+		max_lines = 2;
-+		break;
-+	}
-+	if (max_lines > DUART_MAX_LINE)
-+		max_lines = DUART_MAX_LINE;
-+
-+	for (i = 0; i < max_lines; i++)
-+		sb1250_duart_present[i] = 1;
-+}
-+
-+/* Set up the driver and register it, register the UART interrupts.  This
-+   is called from tty_init, or as a part of the module init */
-+static int __init sb1250_duart_init(void)
-+{
-+	int i;
-+
-+	sb1250_duart_init_present_lines();
-+
-+	sb1250_duart_driver = alloc_tty_driver(DUART_MAX_LINE);
-+	if (!sb1250_duart_driver)
-+		return -ENOMEM;
-+
-+	sb1250_duart_driver->owner = THIS_MODULE;
-+	sb1250_duart_driver->name = "duart";
-+	sb1250_duart_driver->major = TTY_MAJOR;
-+	sb1250_duart_driver->minor_start = SB1250_DUART_MINOR_BASE;
-+	sb1250_duart_driver->type            = TTY_DRIVER_TYPE_SERIAL;
-+	sb1250_duart_driver->subtype         = SERIAL_TYPE_NORMAL;
-+	sb1250_duart_driver->init_termios    = tty_std_termios;
-+	sb1250_duart_driver->flags           = TTY_DRIVER_REAL_RAW;
-+	tty_set_operations(sb1250_duart_driver, &duart_ops);
-+
-+	for (i = 0; i < DUART_MAX_LINE; i++) {
-+		uart_state_t *port = uart_states + i;
-+
-+		if (!sb1250_duart_present[i])
-+			continue;
-+
-+		init_duart_port(port, i);
-+		duart_mask_ints(i, M_DUART_IMR_ALL);
-+		if (request_irq(UNIT_INT(i), duart_int, 0, "uart", port)) {
-+			panic("Couldn't get uart0 interrupt line");
-+		}
-+		/*
-+		 * this generic write to a register does not implement the 1956
-+		 * WAR and sometimes output gets corrupted afterwards,
-+		 * especially if the port was in use as a console.
-+		 */
-+		__raw_writel(M_DUART_RX_EN|M_DUART_TX_EN, port->cmd);
-+
-+		/*
-+		 * we should really check to see if it's registered as a console
-+		 * before trashing those settings
-+		 */
-+		duart_set_cflag(i, port->last_cflags);
-+	}
-+
-+	/* Interrupts are now active, our ISR can be called. */
-+
-+	if (tty_register_driver(sb1250_duart_driver)) {
-+		printk(KERN_ERR "Couldn't register sb1250 duart serial driver\n");
-+		put_tty_driver(sb1250_duart_driver);
-+		return 1;
-+	}
-+	return 0;
-+}
-+
-+/* Unload the driver.  Unregister stuff, get ready to go away */
-+static void __exit sb1250_duart_fini(void)
-+{
-+	unsigned long flags;
-+	int i;
-+
-+	local_irq_save(flags);
-+	tty_unregister_driver(sb1250_duart_driver);
-+	put_tty_driver(sb1250_duart_driver);
-+
-+	for (i = 0; i < DUART_MAX_LINE; i++) {
-+		if (!sb1250_duart_present[i])
-+			continue;
-+		free_irq(UNIT_INT(i), &uart_states[i]);
-+		disable_irq(UNIT_INT(i));
-+	}
-+	local_irq_restore(flags);
-+}
-+
-+module_init(sb1250_duart_init);
-+module_exit(sb1250_duart_fini);
-+MODULE_DESCRIPTION("SB1250 Duart serial driver");
-+MODULE_AUTHOR("Broadcom Corp.");
-+
-+#ifdef CONFIG_SIBYTE_SB1250_DUART_CONSOLE
-+
-+/*
-+ * Serial console stuff.  Very basic, polling driver for doing serial
-+ * console output.  The console_sem is held by the caller, so we
-+ * shouldn't be interrupted for more console activity.
-+ * XXXKW What about getting interrupted by uart driver activity?
-+ */
-+
-+void serial_outc(unsigned char c, int line)
-+{
-+	uart_state_t *port = uart_states + line;
-+	while (!(READ_SERCSR(port->status, line) & M_DUART_TX_RDY)) ;
-+	WRITE_SERCSR(c, port->tx_hold, line);
-+	while (!(READ_SERCSR(port->status, port->line) & M_DUART_TX_EMT)) ;
-+}
-+
-+static void ser_console_write(struct console *cons, const char *s,
-+	unsigned int count)
-+{
-+	int line = cons->index;
-+	uart_state_t *port = uart_states + line;
-+	u32 imr;
-+
-+	imr = READ_SERCSR(port->imr, line);
-+	WRITE_SERCSR(0, port->imr, line);
-+	while (count--) {
-+		if (*s == '\n')
-+			serial_outc('\r', line);
-+		serial_outc(*s++, line);
-+	}
-+	WRITE_SERCSR(imr, port->imr, line);
-+}
-+
-+static struct tty_driver *ser_console_device(struct console *c, int *index)
-+{
-+	*index = c->index;
-+	return sb1250_duart_driver;
-+}
-+
-+static int ser_console_setup(struct console *cons, char *str)
-+{
-+	int i;
-+
-+	sb1250_duart_init_present_lines();
-+
-+	for (i = 0; i < DUART_MAX_LINE; i++) {
-+		uart_state_t *port = uart_states + i;
-+		u32 cflags = DEFAULT_CFLAGS;
-+
-+		if (!sb1250_duart_present[i])
-+			continue;
-+
-+		init_duart_port(port, i);
-+		if (str) {
-+			int speed;
-+			char par = 'n';
-+			int cbits = 8;
-+
-+			cflags = 0;
-+
-+			/*
-+			 * format is in Documentation/serial_console.txt
-+			 */
-+			sscanf(str, "%d%c%d", &speed, &par, &cbits);
-+
-+			switch (speed) {
-+			case 200:
-+			case 300:
-+			case 1200:
-+				cflags |= B1200;
-+				break;
-+			case 1800:
-+				cflags |= B1800;
-+				break;
-+			case 2400:
-+				cflags |= B2400;
-+				break;
-+			case 4800:
-+				cflags |= B4800;
-+				break;
-+			default:
-+			case 9600:
-+				cflags |= B9600;
-+				break;
-+			case 19200:
-+				cflags |= B19200;
-+				break;
-+			case 38400:
-+				cflags |= B38400;
-+				break;
-+			case 57600:
-+				cflags |= B57600;
-+				break;
-+			case 115200:
-+				cflags |= B115200;
-+				break;
-+			}
-+			switch (par) {
-+			case 'o':
-+				cflags |= PARODD;
-+			case 'e':
-+				cflags |= PARENB;
-+			}
-+			switch (cbits) {
-+			default:	// we only do 7 or 8
-+			case 8:
-+				cflags |= CS8;
-+				break;
-+			case 7:
-+				cflags |= CS7;
-+				break;
-+			}
-+		}
-+		duart_set_cflag(i, cflags);
-+		WRITE_SERCSR(M_DUART_RX_EN | M_DUART_TX_EN, port->cmd, i);
-+	}
-+
-+	return 0;
-+}
-+
-+static struct console sb1250_ser_cons = {
-+	.name		= "duart",
-+	.write		= ser_console_write,
-+	.device		= ser_console_device,
-+	.setup		= ser_console_setup,
-+	.flags		= CON_PRINTBUFFER,
-+	.index		= -1,
-+};
-+
-+static int __init sb1250_serial_console_init(void)
-+{
-+	//add_preferred_console("duart", 0, "57600n8");
-+	register_console(&sb1250_ser_cons);
-+	return 0;
-+}
-+
-+console_initcall(sb1250_serial_console_init);
-+
-+#endif /* CONFIG_SIBYTE_SB1250_DUART_CONSOLE */
-diff -Nur linux-2.6.21.1/include/linux/serial.h linux-2.6.21.1-owrt/include/linux/serial.h
---- linux-2.6.21.1/include/linux/serial.h	2007-04-27 23:49:26.000000000 +0200
-+++ linux-2.6.21.1-owrt/include/linux/serial.h	2007-05-24 22:10:29.000000000 +0200
-@@ -76,7 +76,8 @@
- #define PORT_16654	11
- #define PORT_16850	12
- #define PORT_RSA	13	/* RSA-DV II/S card */
--#define PORT_MAX	13
-+#define PORT_SB1250	14
-+#define PORT_MAX	14
- 
- #define SERIAL_IO_PORT	0
- #define SERIAL_IO_HUB6	1