Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into sh-latest

1 files changed, 0 insertions, 682 deletions

diff --git a/drivers/tty/serial/serial_lh7a40x.c b/drivers/tty/serial/serial_lh7a40x.c
deleted file mode 100644
index ea744707c4d..00000000000
--- a/drivers/tty/serial/serial_lh7a40x.c
+++ /dev/null
@@ -1,682 +0,0 @@
-/* drivers/serial/serial_lh7a40x.c
- *
- *  Copyright (C) 2004 Coastal Environmental Systems
- *
- *  This program is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU General Public License
- *  version 2 as published by the Free Software Foundation.
- *
- */
-
-/* Driver for Sharp LH7A40X embedded serial ports
- *
- *  Based on drivers/char/serial.c, by Linus Torvalds, Theodore Ts'o.
- *  Based on drivers/serial/amba.c, by Deep Blue Solutions Ltd.
- *
- *  ---
- *
- * This driver supports the embedded UARTs of the Sharp LH7A40X series
- * CPUs.  While similar to the 16550 and other UART chips, there is
- * nothing close to register compatibility.  Moreover, some of the
- * modem control lines are not available, either in the chip or they
- * are lacking in the board-level implementation.
- *
- * - Use of SIRDIS
- *   For simplicity, we disable the IR functions of any UART whenever
- *   we enable it.
- *
- */
-
-
-#if defined(CONFIG_SERIAL_LH7A40X_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 <linux/io.h>
-
-#include <asm/irq.h>
-#include <mach/hardware.h>
-
-#define DEV_MAJOR	204
-#define DEV_MINOR	16
-#define DEV_NR		3
-
-#define ISR_LOOP_LIMIT	256
-
-#define UR(p,o)	_UR ((p)->membase, o)
-#define _UR(b,o) (*((volatile unsigned int*)(((unsigned char*) b) + (o))))
-#define BIT_CLR(p,o,m)	UR(p,o) = UR(p,o) & (~(unsigned int)m)
-#define BIT_SET(p,o,m)	UR(p,o) = UR(p,o) | ( (unsigned int)m)
-
-#define UART_REG_SIZE	32
-
-#define UART_R_DATA	(0x00)
-#define UART_R_FCON	(0x04)
-#define UART_R_BRCON	(0x08)
-#define UART_R_CON	(0x0c)
-#define UART_R_STATUS	(0x10)
-#define UART_R_RAWISR	(0x14)
-#define UART_R_INTEN	(0x18)
-#define UART_R_ISR	(0x1c)
-
-#define UARTEN		(0x01)		/* UART enable */
-#define SIRDIS		(0x02)		/* Serial IR disable (UART1 only) */
-
-#define RxEmpty		(0x10)
-#define TxEmpty		(0x80)
-#define TxFull		(0x20)
-#define nRxRdy		RxEmpty
-#define nTxRdy		TxFull
-#define TxBusy		(0x08)
-
-#define RxBreak		(0x0800)
-#define RxOverrunError	(0x0400)
-#define RxParityError	(0x0200)
-#define RxFramingError	(0x0100)
-#define RxError     (RxBreak | RxOverrunError | RxParityError | RxFramingError)
-
-#define DCD		(0x04)
-#define DSR		(0x02)
-#define CTS		(0x01)
-
-#define RxInt		(0x01)
-#define TxInt		(0x02)
-#define ModemInt	(0x04)
-#define RxTimeoutInt	(0x08)
-
-#define MSEOI		(0x10)
-
-#define WLEN_8		(0x60)
-#define WLEN_7		(0x40)
-#define WLEN_6		(0x20)
-#define WLEN_5		(0x00)
-#define WLEN		(0x60)	/* Mask for all word-length bits */
-#define STP2		(0x08)
-#define PEN		(0x02)	/* Parity Enable */
-#define EPS		(0x04)	/* Even Parity Set */
-#define FEN		(0x10)	/* FIFO Enable */
-#define BRK		(0x01)	/* Send Break */
-
-
-struct uart_port_lh7a40x {
-	struct uart_port port;
-	unsigned int statusPrev; /* Most recently read modem status */
-};
-
-static void lh7a40xuart_stop_tx (struct uart_port* port)
-{
-	BIT_CLR (port, UART_R_INTEN, TxInt);
-}
-
-static void lh7a40xuart_start_tx (struct uart_port* port)
-{
-	BIT_SET (port, UART_R_INTEN, TxInt);
-
-	/* *** FIXME: do I need to check for startup of the
-		      transmitter?  The old driver did, but AMBA
-		      doesn't . */
-}
-
-static void lh7a40xuart_stop_rx (struct uart_port* port)
-{
-	BIT_SET (port, UART_R_INTEN, RxTimeoutInt | RxInt);
-}
-
-static void lh7a40xuart_enable_ms (struct uart_port* port)
-{
-	BIT_SET (port, UART_R_INTEN, ModemInt);
-}
-
-static void lh7a40xuart_rx_chars (struct uart_port* port)
-{
-	struct tty_struct* tty = port->state->port.tty;
-	int cbRxMax = 256;	/* (Gross) limit on receive */
-	unsigned int data;	/* Received data and status */
-	unsigned int flag;
-
-	while (!(UR (port, UART_R_STATUS) & nRxRdy) && --cbRxMax) {
-		data = UR (port, UART_R_DATA);
-		flag = TTY_NORMAL;
-		++port->icount.rx;
-
-		if (unlikely(data & RxError)) {
-			if (data & RxBreak) {
-				data &= ~(RxFramingError | RxParityError);
-				++port->icount.brk;
-				if (uart_handle_break (port))
-					continue;
-			}
-			else if (data & RxParityError)
-				++port->icount.parity;
-			else if (data & RxFramingError)
-				++port->icount.frame;
-			if (data & RxOverrunError)
-				++port->icount.overrun;
-
-				/* Mask by termios, leave Rx'd byte */
-			data &= port->read_status_mask | 0xff;
-
-			if (data & RxBreak)
-				flag = TTY_BREAK;
-			else if (data & RxParityError)
-				flag = TTY_PARITY;
-			else if (data & RxFramingError)
-				flag = TTY_FRAME;
-		}
-
-		if (uart_handle_sysrq_char (port, (unsigned char) data))
-			continue;
-
-		uart_insert_char(port, data, RxOverrunError, data, flag);
-	}
-	tty_flip_buffer_push (tty);
-	return;
-}
-
-static void lh7a40xuart_tx_chars (struct uart_port* port)
-{
-	struct circ_buf* xmit = &port->state->xmit;
-	int cbTxMax = port->fifosize;
-
-	if (port->x_char) {
-		UR (port, UART_R_DATA) = port->x_char;
-		++port->icount.tx;
-		port->x_char = 0;
-		return;
-	}
-	if (uart_circ_empty (xmit) || uart_tx_stopped (port)) {
-		lh7a40xuart_stop_tx (port);
-		return;
-	}
-
-	/* Unlike the AMBA UART, the lh7a40x UART does not guarantee
-	   that at least half of the FIFO is empty.  Instead, we check
-	   status for every character.  Using the AMBA method causes
-	   the transmitter to drop characters. */
-
-	do {
-		UR (port, UART_R_DATA) = xmit->buf[xmit->tail];
-		xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
-		++port->icount.tx;
-		if (uart_circ_empty(xmit))
-			break;
-	} while (!(UR (port, UART_R_STATUS) & nTxRdy)
-		 && cbTxMax--);
-
-	if (uart_circ_chars_pending (xmit) < WAKEUP_CHARS)
-		uart_write_wakeup (port);
-
-	if (uart_circ_empty (xmit))
-		lh7a40xuart_stop_tx (port);
-}
-
-static void lh7a40xuart_modem_status (struct uart_port* port)
-{
-	unsigned int status = UR (port, UART_R_STATUS);
-	unsigned int delta
-		= status ^ ((struct uart_port_lh7a40x*) port)->statusPrev;
-
-	BIT_SET (port, UART_R_RAWISR, MSEOI); /* Clear modem status intr */
-
-	if (!delta)		/* Only happens if we missed 2 transitions */
-		return;
-
-	((struct uart_port_lh7a40x*) port)->statusPrev = status;
-
-	if (delta & DCD)
-		uart_handle_dcd_change (port, status & DCD);
-
-	if (delta & DSR)
-		++port->icount.dsr;
-
-	if (delta & CTS)
-		uart_handle_cts_change (port, status & CTS);
-
-	wake_up_interruptible (&port->state->port.delta_msr_wait);
-}
-
-static irqreturn_t lh7a40xuart_int (int irq, void* dev_id)
-{
-	struct uart_port* port = dev_id;
-	unsigned int cLoopLimit = ISR_LOOP_LIMIT;
-	unsigned int isr = UR (port, UART_R_ISR);
-
-
-	do {
-		if (isr & (RxInt | RxTimeoutInt))
-			lh7a40xuart_rx_chars(port);
-		if (isr & ModemInt)
-			lh7a40xuart_modem_status (port);
-		if (isr & TxInt)
-			lh7a40xuart_tx_chars (port);
-
-		if (--cLoopLimit == 0)
-			break;
-
-		isr = UR (port, UART_R_ISR);
-	} while (isr & (RxInt | TxInt | RxTimeoutInt));
-
-	return IRQ_HANDLED;
-}
-
-static unsigned int lh7a40xuart_tx_empty (struct uart_port* port)
-{
-	return (UR (port, UART_R_STATUS) & TxEmpty) ? TIOCSER_TEMT : 0;
-}
-
-static unsigned int lh7a40xuart_get_mctrl (struct uart_port* port)
-{
-	unsigned int result = 0;
-	unsigned int status = UR (port, UART_R_STATUS);
-
-	if (status & DCD)
-		result |= TIOCM_CAR;
-	if (status & DSR)
-		result |= TIOCM_DSR;
-	if (status & CTS)
-		result |= TIOCM_CTS;
-
-	return result;
-}
-
-static void lh7a40xuart_set_mctrl (struct uart_port* port, unsigned int mctrl)
-{
-	/* None of the ports supports DTR. UART1 supports RTS through GPIO. */
-	/* Note, kernel appears to be setting DTR and RTS on console. */
-
-	/* *** FIXME: this deserves more work.  There's some work in
-	       tracing all of the IO pins. */
-#if 0
-	if( port->mapbase == UART1_PHYS) {
-		gpioRegs_t *gpio = (gpioRegs_t *)IO_ADDRESS(GPIO_PHYS);
-
-		if (mctrl & TIOCM_RTS)
-			gpio->pbdr &= ~GPIOB_UART1_RTS;
-		else
-			gpio->pbdr |= GPIOB_UART1_RTS;
-	}
-#endif
-}
-
-static void lh7a40xuart_break_ctl (struct uart_port* port, int break_state)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&port->lock, flags);
-	if (break_state == -1)
-		BIT_SET (port, UART_R_FCON, BRK); /* Assert break */
-	else
-		BIT_CLR (port, UART_R_FCON, BRK); /* Deassert break */
-	spin_unlock_irqrestore(&port->lock, flags);
-}
-
-static int lh7a40xuart_startup (struct uart_port* port)
-{
-	int retval;
-
-	retval = request_irq (port->irq, lh7a40xuart_int, 0,
-			      "serial_lh7a40x", port);
-	if (retval)
-		return retval;
-
-				/* Initial modem control-line settings */
-	((struct uart_port_lh7a40x*) port)->statusPrev
-		= UR (port, UART_R_STATUS);
-
-	/* There is presently no configuration option to enable IR.
-	   Thus, we always disable it. */
-
-	BIT_SET (port, UART_R_CON, UARTEN | SIRDIS);
-	BIT_SET (port, UART_R_INTEN, RxTimeoutInt | RxInt);
-
-	return 0;
-}
-
-static void lh7a40xuart_shutdown (struct uart_port* port)
-{
-	free_irq (port->irq, port);
-	BIT_CLR (port, UART_R_FCON, BRK | FEN);
-	BIT_CLR (port, UART_R_CON, UARTEN);
-}
-
-static void lh7a40xuart_set_termios (struct uart_port* port,
-				     struct ktermios* termios,
-				     struct ktermios* old)
-{
-	unsigned int con;
-	unsigned int inten;
-	unsigned int fcon;
-	unsigned long flags;
-	unsigned int baud;
-	unsigned int quot;
-
-	baud = uart_get_baud_rate (port, termios, old, 8, port->uartclk/16);
-	quot = uart_get_divisor (port, baud); /* -1 performed elsewhere */
-
-	switch (termios->c_cflag & CSIZE) {
-	case CS5:
-		fcon = WLEN_5;
-		break;
-	case CS6:
-		fcon = WLEN_6;
-		break;
-	case CS7:
-		fcon = WLEN_7;
-		break;
-	case CS8:
-	default:
-		fcon = WLEN_8;
-		break;
-	}
-	if (termios->c_cflag & CSTOPB)
-		fcon |= STP2;
-	if (termios->c_cflag & PARENB) {
-		fcon |= PEN;
-		if (!(termios->c_cflag & PARODD))
-			fcon |= EPS;
-	}
-	if (port->fifosize > 1)
-		fcon |= FEN;
-
-	spin_lock_irqsave (&port->lock, flags);
-
-	uart_update_timeout (port, termios->c_cflag, baud);
-
-	port->read_status_mask = RxOverrunError;
-	if (termios->c_iflag & INPCK)
-		port->read_status_mask |= RxFramingError | RxParityError;
-	if (termios->c_iflag & (BRKINT | PARMRK))
-		port->read_status_mask |= RxBreak;
-
-		/* Figure mask for status we ignore */
-	port->ignore_status_mask = 0;
-	if (termios->c_iflag & IGNPAR)
-		port->ignore_status_mask |= RxFramingError | RxParityError;
-	if (termios->c_iflag & IGNBRK) {
-		port->ignore_status_mask |= RxBreak;
-		/* Ignore overrun when ignorning parity */
-		/* *** FIXME: is this in the right place? */
-		if (termios->c_iflag & IGNPAR)
-			port->ignore_status_mask |= RxOverrunError;
-	}
-
-		/* Ignore all receive errors when receive disabled */
-	if ((termios->c_cflag & CREAD) == 0)
-		port->ignore_status_mask |= RxError;
-
-	con   = UR (port, UART_R_CON);
-	inten = (UR (port, UART_R_INTEN) & ~ModemInt);
-
-	if (UART_ENABLE_MS (port, termios->c_cflag))
-		inten |= ModemInt;
-
-	BIT_CLR (port, UART_R_CON, UARTEN);	/* Disable UART */
-	UR (port, UART_R_INTEN) = 0;		/* Disable interrupts */
-	UR (port, UART_R_BRCON) = quot - 1;	/* Set baud rate divisor */
-	UR (port, UART_R_FCON)  = fcon;		/* Set FIFO and frame ctrl */
-	UR (port, UART_R_INTEN) = inten;	/* Enable interrupts */
-	UR (port, UART_R_CON)   = con;		/* Restore UART mode */
-
-	spin_unlock_irqrestore(&port->lock, flags);
-}
-
-static const char* lh7a40xuart_type (struct uart_port* port)
-{
-	return port->type == PORT_LH7A40X ? "LH7A40X" : NULL;
-}
-
-static void lh7a40xuart_release_port (struct uart_port* port)
-{
-	release_mem_region (port->mapbase, UART_REG_SIZE);
-}
-
-static int lh7a40xuart_request_port (struct uart_port* port)
-{
-	return request_mem_region (port->mapbase, UART_REG_SIZE,
-				   "serial_lh7a40x") != NULL
-		? 0 : -EBUSY;
-}
-
-static void lh7a40xuart_config_port (struct uart_port* port, int flags)
-{
-	if (flags & UART_CONFIG_TYPE) {
-		port->type = PORT_LH7A40X;
-		lh7a40xuart_request_port (port);
-	}
-}
-
-static int lh7a40xuart_verify_port (struct uart_port* port,
-				    struct serial_struct* ser)
-{
-	int ret = 0;
-
-	if (ser->type != PORT_UNKNOWN && ser->type != PORT_LH7A40X)
-		ret = -EINVAL;
-	if (ser->irq < 0 || ser->irq >= nr_irqs)
-		ret = -EINVAL;
-	if (ser->baud_base < 9600) /* *** FIXME: is this true? */
-		ret = -EINVAL;
-	return ret;
-}
-
-static struct uart_ops lh7a40x_uart_ops = {
-	.tx_empty	= lh7a40xuart_tx_empty,
-	.set_mctrl	= lh7a40xuart_set_mctrl,
-	.get_mctrl	= lh7a40xuart_get_mctrl,
-	.stop_tx	= lh7a40xuart_stop_tx,
-	.start_tx	= lh7a40xuart_start_tx,
-	.stop_rx	= lh7a40xuart_stop_rx,
-	.enable_ms	= lh7a40xuart_enable_ms,
-	.break_ctl	= lh7a40xuart_break_ctl,
-	.startup	= lh7a40xuart_startup,
-	.shutdown	= lh7a40xuart_shutdown,
-	.set_termios	= lh7a40xuart_set_termios,
-	.type		= lh7a40xuart_type,
-	.release_port	= lh7a40xuart_release_port,
-	.request_port	= lh7a40xuart_request_port,
-	.config_port	= lh7a40xuart_config_port,
-	.verify_port	= lh7a40xuart_verify_port,
-};
-
-static struct uart_port_lh7a40x lh7a40x_ports[DEV_NR] = {
-	{
-		.port = {
-			.membase	= (void*) io_p2v (UART1_PHYS),
-			.mapbase	= UART1_PHYS,
-			.iotype		= UPIO_MEM,
-			.irq		= IRQ_UART1INTR,
-			.uartclk	= 14745600/2,
-			.fifosize	= 16,
-			.ops		= &lh7a40x_uart_ops,
-			.flags		= UPF_BOOT_AUTOCONF,
-			.line		= 0,
-		},
-	},
-	{
-		.port = {
-			.membase	= (void*) io_p2v (UART2_PHYS),
-			.mapbase	= UART2_PHYS,
-			.iotype		= UPIO_MEM,
-			.irq		= IRQ_UART2INTR,
-			.uartclk	= 14745600/2,
-			.fifosize	= 16,
-			.ops		= &lh7a40x_uart_ops,
-			.flags		= UPF_BOOT_AUTOCONF,
-			.line		= 1,
-		},
-	},
-	{
-		.port = {
-			.membase	= (void*) io_p2v (UART3_PHYS),
-			.mapbase	= UART3_PHYS,
-			.iotype		= UPIO_MEM,
-			.irq		= IRQ_UART3INTR,
-			.uartclk	= 14745600/2,
-			.fifosize	= 16,
-			.ops		= &lh7a40x_uart_ops,
-			.flags		= UPF_BOOT_AUTOCONF,
-			.line		= 2,
-		},
-	},
-};
-
-#ifndef CONFIG_SERIAL_LH7A40X_CONSOLE
-# define LH7A40X_CONSOLE NULL
-#else
-# define LH7A40X_CONSOLE &lh7a40x_console
-
-static void lh7a40xuart_console_putchar(struct uart_port *port, int ch)
-{
-	while (UR(port, UART_R_STATUS) & nTxRdy)
-		;
-	UR(port, UART_R_DATA) = ch;
-}
-
-static void lh7a40xuart_console_write (struct console* co,
-				       const char* s,
-				       unsigned int count)
-{
-	struct uart_port* port = &lh7a40x_ports[co->index].port;
-	unsigned int con = UR (port, UART_R_CON);
-	unsigned int inten = UR (port, UART_R_INTEN);
-
-
-	UR (port, UART_R_INTEN) = 0;		/* Disable all interrupts */
-	BIT_SET (port, UART_R_CON, UARTEN | SIRDIS); /* Enable UART */
-
-	uart_console_write(port, s, count, lh7a40xuart_console_putchar);
-
-				/* Wait until all characters are sent */
-	while (UR (port, UART_R_STATUS) & TxBusy)
-		;
-
-				/* Restore control and interrupt mask */
-	UR (port, UART_R_CON) = con;
-	UR (port, UART_R_INTEN) = inten;
-}
-
-static void __init lh7a40xuart_console_get_options (struct uart_port* port,
-						    int* baud,
-						    int* parity,
-						    int* bits)
-{
-	if (UR (port, UART_R_CON) & UARTEN) {
-		unsigned int fcon = UR (port, UART_R_FCON);
-		unsigned int quot = UR (port, UART_R_BRCON) + 1;
-
-		switch (fcon & (PEN | EPS)) {
-		default:        *parity = 'n'; break;
-		case PEN:       *parity = 'o'; break;
-		case PEN | EPS: *parity = 'e'; break;
-		}
-
-		switch (fcon & WLEN) {
-		default:
-		case WLEN_8: *bits = 8; break;
-		case WLEN_7: *bits = 7; break;
-		case WLEN_6: *bits = 6; break;
-		case WLEN_5: *bits = 5; break;
-		}
-
-		*baud = port->uartclk/(16*quot);
-	}
-}
-
-static int __init lh7a40xuart_console_setup (struct console* co, char* options)
-{
-	struct uart_port* port;
-	int baud = 38400;
-	int bits = 8;
-	int parity = 'n';
-	int flow = 'n';
-
-	if (co->index >= DEV_NR) /* Bounds check on device number */
-		co->index = 0;
-	port = &lh7a40x_ports[co->index].port;
-
-	if (options)
-		uart_parse_options (options, &baud, &parity, &bits, &flow);
-	else
-		lh7a40xuart_console_get_options (port, &baud, &parity, &bits);
-
-	return uart_set_options (port, co, baud, parity, bits, flow);
-}
-
-static struct uart_driver lh7a40x_reg;
-static struct console lh7a40x_console = {
-	.name		= "ttyAM",
-	.write		= lh7a40xuart_console_write,
-	.device		= uart_console_device,
-	.setup		= lh7a40xuart_console_setup,
-	.flags		= CON_PRINTBUFFER,
-	.index		= -1,
-	.data		= &lh7a40x_reg,
-};
-
-static int __init lh7a40xuart_console_init(void)
-{
-	register_console (&lh7a40x_console);
-	return 0;
-}
-
-console_initcall (lh7a40xuart_console_init);
-
-#endif
-
-static struct uart_driver lh7a40x_reg = {
-	.owner			= THIS_MODULE,
-	.driver_name		= "ttyAM",
-	.dev_name		= "ttyAM",
-	.major			= DEV_MAJOR,
-	.minor			= DEV_MINOR,
-	.nr			= DEV_NR,
-	.cons			= LH7A40X_CONSOLE,
-};
-
-static int __init lh7a40xuart_init(void)
-{
-	int ret;
-
-	printk (KERN_INFO "serial: LH7A40X serial driver\n");
-
-	ret = uart_register_driver (&lh7a40x_reg);
-
-	if (ret == 0) {
-		int i;
-
-		for (i = 0; i < DEV_NR; i++) {
-			/* UART3, when used, requires GPIO pin reallocation */
-			if (lh7a40x_ports[i].port.mapbase == UART3_PHYS)
-				GPIO_PINMUX |= 1<<3;
-			uart_add_one_port (&lh7a40x_reg,
-					   &lh7a40x_ports[i].port);
-		}
-	}
-	return ret;
-}
-
-static void __exit lh7a40xuart_exit(void)
-{
-	int i;
-
-	for (i = 0; i < DEV_NR; i++)
-		uart_remove_one_port (&lh7a40x_reg, &lh7a40x_ports[i].port);
-
-	uart_unregister_driver (&lh7a40x_reg);
-}
-
-module_init (lh7a40xuart_init);
-module_exit (lh7a40xuart_exit);
-
-MODULE_AUTHOR ("Marc Singer");
-MODULE_DESCRIPTION ("Sharp LH7A40X serial port driver");
-MODULE_LICENSE ("GPL");