remove drivers/serial/v850e_uart.c

The removal of drivers/serial/v850e_uart.c originally was in my v850
removal patch, but it seems it got lost somewhere.

Reported-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2 files changed, 0 insertions, 549 deletions

diff --git a/drivers/serial/Makefile b/drivers/serial/Makefile
index 3a0bbbe17aa..7e7383e890d 100644
--- a/drivers/serial/Makefile
+++ b/drivers/serial/Makefile
@@ -42,7 +42,6 @@ obj-$(CONFIG_SERIAL_68328) += 68328serial.o
 obj-$(CONFIG_SERIAL_68360) += 68360serial.o
 obj-$(CONFIG_SERIAL_COLDFIRE) += mcfserial.o
 obj-$(CONFIG_SERIAL_MCF) += mcf.o
-obj-$(CONFIG_V850E_UART) += v850e_uart.o
 obj-$(CONFIG_SERIAL_PMACZILOG) += pmac_zilog.o
 obj-$(CONFIG_SERIAL_LH7A40X) += serial_lh7a40x.o
 obj-$(CONFIG_SERIAL_DZ) += dz.o
diff --git a/drivers/serial/v850e_uart.c b/drivers/serial/v850e_uart.c
deleted file mode 100644
index 5acf061b6cd..00000000000
--- a/drivers/serial/v850e_uart.c
+++ /dev/null
@@ -1,548 +0,0 @@
-/*
- * drivers/serial/v850e_uart.c -- Serial I/O using V850E on-chip UART or UARTB
- *
- *  Copyright (C) 2001,02,03  NEC Electronics Corporation
- *  Copyright (C) 2001,02,03  Miles Bader <miles@gnu.org>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License.  See the file COPYING in the main directory of this
- * archive for more details.
- *
- * Written by Miles Bader <miles@gnu.org>
- */
-
-/* This driver supports both the original V850E UART interface (called
-   merely `UART' in the docs) and the newer `UARTB' interface, which is
-   roughly a superset of the first one.  The selection is made at
-   configure time -- if CONFIG_V850E_UARTB is defined, then UARTB is
-   presumed, otherwise the old UART -- as these are on-CPU UARTS, a system
-   can never have both.
-
-   The UARTB interface also has a 16-entry FIFO mode, which is not
-   yet supported by this driver.  */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/console.h>
-#include <linux/tty.h>
-#include <linux/tty_flip.h>
-#include <linux/serial.h>
-#include <linux/serial_core.h>
-
-#include <asm/v850e_uart.h>
-
-/* Initial UART state.  This may be overridden by machine-dependent headers. */
-#ifndef V850E_UART_INIT_BAUD
-#define V850E_UART_INIT_BAUD	115200
-#endif
-#ifndef V850E_UART_INIT_CFLAGS
-#define V850E_UART_INIT_CFLAGS	(B115200 | CS8 | CREAD)
-#endif
-
-/* A string used for prefixing printed descriptions; since the same UART
-   macro is actually used on other chips than the V850E.  This must be a
-   constant string.  */
-#ifndef V850E_UART_CHIP_NAME
-#define V850E_UART_CHIP_NAME	"V850E"
-#endif
-
-#define V850E_UART_MINOR_BASE	64	   /* First tty minor number */
-
-
-/* Low-level UART functions.  */
-
-/* Configure and turn on uart channel CHAN, using the termios `control
-   modes' bits in CFLAGS, and a baud-rate of BAUD.  */
-void v850e_uart_configure (unsigned chan, unsigned cflags, unsigned baud)
-{
-	int flags;
-	v850e_uart_speed_t old_speed;
-	v850e_uart_config_t old_config;
-	v850e_uart_speed_t new_speed = v850e_uart_calc_speed (baud);
-	v850e_uart_config_t new_config = v850e_uart_calc_config (cflags);
-
-	/* Disable interrupts while we're twiddling the hardware.  */
-	local_irq_save (flags);
-
-#ifdef V850E_UART_PRE_CONFIGURE
-	V850E_UART_PRE_CONFIGURE (chan, cflags, baud);
-#endif
-
-	old_config = V850E_UART_CONFIG (chan);
-	old_speed = v850e_uart_speed (chan);
-
-	if (! v850e_uart_speed_eq (old_speed, new_speed)) {
-		/* The baud rate has changed.  First, disable the UART.  */
-		V850E_UART_CONFIG (chan) = V850E_UART_CONFIG_FINI;
-		old_config = 0;	/* Force the uart to be re-initialized. */
-
-		/* Reprogram the baud-rate generator.  */
-		v850e_uart_set_speed (chan, new_speed);
-	}
-
-	if (! (old_config & V850E_UART_CONFIG_ENABLED)) {
-		/* If we are using the uart for the first time, start by
-		   enabling it, which must be done before turning on any
-		   other bits.  */
-		V850E_UART_CONFIG (chan) = V850E_UART_CONFIG_INIT;
-		/* See the initial state.  */
-		old_config = V850E_UART_CONFIG (chan);
-	}
-
-	if (new_config != old_config) {
-		/* Which of the TXE/RXE bits we'll temporarily turn off
-		   before changing other control bits.  */
-		unsigned temp_disable = 0;
-		/* Which of the TXE/RXE bits will be enabled.  */
-		unsigned enable = 0;
-		unsigned changed_bits = new_config ^ old_config;
-
-		/* Which of RX/TX will be enabled in the new configuration.  */
-		if (new_config & V850E_UART_CONFIG_RX_BITS)
-			enable |= (new_config & V850E_UART_CONFIG_RX_ENABLE);
-		if (new_config & V850E_UART_CONFIG_TX_BITS)
-			enable |= (new_config & V850E_UART_CONFIG_TX_ENABLE);
-
-		/* Figure out which of RX/TX needs to be disabled; note
-		   that this will only happen if they're not already
-		   disabled.  */
-		if (changed_bits & V850E_UART_CONFIG_RX_BITS)
-			temp_disable
-				|= (old_config & V850E_UART_CONFIG_RX_ENABLE);
-		if (changed_bits & V850E_UART_CONFIG_TX_BITS)
-			temp_disable
-				|= (old_config & V850E_UART_CONFIG_TX_ENABLE);
-
-		/* We have to turn off RX and/or TX mode before changing
-		   any associated control bits.  */
-		if (temp_disable)
-			V850E_UART_CONFIG (chan) = old_config & ~temp_disable;
-
-		/* Write the new control bits, while RX/TX are disabled. */ 
-		if (changed_bits & ~enable)
-			V850E_UART_CONFIG (chan) = new_config & ~enable;
-
-		v850e_uart_config_delay (new_config, new_speed);
-
-		/* Write the final version, with enable bits turned on.  */
-		V850E_UART_CONFIG (chan) = new_config;
-	}
-
-	local_irq_restore (flags);
-}
-
-
-/*  Low-level console. */
-
-#ifdef CONFIG_V850E_UART_CONSOLE
-
-static void v850e_uart_cons_write (struct console *co,
-				   const char *s, unsigned count)
-{
-	if (count > 0) {
-		unsigned chan = co->index;
-		unsigned irq = V850E_UART_TX_IRQ (chan);
-		int irq_was_enabled, irq_was_pending, flags;
-
-		/* We don't want to get `transmission completed'
-		   interrupts, since we're busy-waiting, so we disable them
-		   while sending (we don't disable interrupts entirely
-		   because sending over a serial line is really slow).  We
-		   save the status of the tx interrupt and restore it when
-		   we're done so that using printk doesn't interfere with
-		   normal serial transmission (other than interleaving the
-		   output, of course!).  This should work correctly even if
-		   this function is interrupted and the interrupt printks
-		   something.  */
-
-		/* Disable interrupts while fiddling with tx interrupt.  */
-		local_irq_save (flags);
-		/* Get current tx interrupt status.  */
-		irq_was_enabled = v850e_intc_irq_enabled (irq);
-		irq_was_pending = v850e_intc_irq_pending (irq);
-		/* Disable tx interrupt if necessary.  */
-		if (irq_was_enabled)
-			v850e_intc_disable_irq (irq);
-		/* Turn interrupts back on.  */
-		local_irq_restore (flags);
-
-		/* Send characters.  */
-		while (count > 0) {
-			int ch = *s++;
-
-			if (ch == '\n') {
-				/* We don't have the benefit of a tty
-				   driver, so translate NL into CR LF.  */
-				v850e_uart_wait_for_xmit_ok (chan);
-				v850e_uart_putc (chan, '\r');
-			}
-
-			v850e_uart_wait_for_xmit_ok (chan);
-			v850e_uart_putc (chan, ch);
-
-			count--;
-		}
-
-		/* Restore saved tx interrupt status.  */
-		if (irq_was_enabled) {
-			/* Wait for the last character we sent to be
-			   completely transmitted (as we'll get an
-			   interrupt interrupt at that point).  */
-			v850e_uart_wait_for_xmit_done (chan);
-			/* Clear pending interrupts received due
-			   to our transmission, unless there was already
-			   one pending, in which case we want the
-			   handler to be called.  */
-			if (! irq_was_pending)
-				v850e_intc_clear_pending_irq (irq);
-			/* ... and then turn back on handling.  */
-			v850e_intc_enable_irq (irq);
-		}
-	}
-}
-
-extern struct uart_driver v850e_uart_driver;
-static struct console v850e_uart_cons =
-{
-    .name	= "ttyS",
-    .write	= v850e_uart_cons_write,
-    .device	= uart_console_device,
-    .flags	= CON_PRINTBUFFER,
-    .cflag	= V850E_UART_INIT_CFLAGS,
-    .index	= -1,
-    .data	= &v850e_uart_driver,
-};
-
-void v850e_uart_cons_init (unsigned chan)
-{
-	v850e_uart_configure (chan, V850E_UART_INIT_CFLAGS,
-			      V850E_UART_INIT_BAUD);
-	v850e_uart_cons.index = chan;
-	register_console (&v850e_uart_cons);
-	printk ("Console: %s on-chip UART channel %d\n",
-		V850E_UART_CHIP_NAME, chan);
-}
-
-/* This is what the init code actually calls.  */
-static int v850e_uart_console_init (void)
-{
-	v850e_uart_cons_init (V850E_UART_CONSOLE_CHANNEL);
-	return 0;
-}
-console_initcall(v850e_uart_console_init);
-
-#define V850E_UART_CONSOLE &v850e_uart_cons
-
-#else /* !CONFIG_V850E_UART_CONSOLE */
-#define V850E_UART_CONSOLE 0
-#endif /* CONFIG_V850E_UART_CONSOLE */
-
-/* TX/RX interrupt handlers.  */
-
-static void v850e_uart_stop_tx (struct uart_port *port);
-
-void v850e_uart_tx (struct uart_port *port)
-{
-	struct circ_buf *xmit = &port->info->xmit;
-	int stopped = uart_tx_stopped (port);
-
-	if (v850e_uart_xmit_ok (port->line)) {
-		int tx_ch;
-
-		if (port->x_char) {
-			tx_ch = port->x_char;
-			port->x_char = 0;
-		} else if (!uart_circ_empty (xmit) && !stopped) {
-			tx_ch = xmit->buf[xmit->tail];
-			xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
-		} else
-			goto no_xmit;
-
-		v850e_uart_putc (port->line, tx_ch);
-		port->icount.tx++;
-
-		if (uart_circ_chars_pending (xmit) < WAKEUP_CHARS)
-			uart_write_wakeup (port);
-	}
-
- no_xmit:
-	if (uart_circ_empty (xmit) || stopped)
-		v850e_uart_stop_tx (port, stopped);
-}
-
-static irqreturn_t v850e_uart_tx_irq(int irq, void *data)
-{
-	struct uart_port *port = data;
-	v850e_uart_tx (port);
-	return IRQ_HANDLED;
-}
-
-static irqreturn_t v850e_uart_rx_irq(int irq, void *data)
-{
-	struct uart_port *port = data;
-	unsigned ch_stat = TTY_NORMAL;
-	unsigned ch = v850e_uart_getc (port->line);
-	unsigned err = v850e_uart_err (port->line);
-
-	if (err) {
-		if (err & V850E_UART_ERR_OVERRUN) {
-			ch_stat = TTY_OVERRUN;
-			port->icount.overrun++;
-		} else if (err & V850E_UART_ERR_FRAME) {
-			ch_stat = TTY_FRAME;
-			port->icount.frame++;
-		} else if (err & V850E_UART_ERR_PARITY) {
-			ch_stat = TTY_PARITY;
-			port->icount.parity++;
-		}
-	}
-
-	port->icount.rx++;
-
-	tty_insert_flip_char (port->info->port.tty, ch, ch_stat);
-	tty_schedule_flip (port->info->port.tty);
-
-	return IRQ_HANDLED;
-}
-
-
-/* Control functions for the serial framework.  */
-
-static void v850e_uart_nop (struct uart_port *port) { }
-static int v850e_uart_success (struct uart_port *port) { return 0; }
-
-static unsigned v850e_uart_tx_empty (struct uart_port *port)
-{
-	return TIOCSER_TEMT;	/* Can't detect.  */
-}
-
-static void v850e_uart_set_mctrl (struct uart_port *port, unsigned mctrl)
-{
-#ifdef V850E_UART_SET_RTS
-	V850E_UART_SET_RTS (port->line, (mctrl & TIOCM_RTS));
-#endif
-}
-
-static unsigned v850e_uart_get_mctrl (struct uart_port *port)
-{
-	/* We don't support DCD or DSR, so consider them permanently active. */
-	int mctrl = TIOCM_CAR | TIOCM_DSR;
-
-	/* We may support CTS.  */
-#ifdef V850E_UART_CTS
-	mctrl |= V850E_UART_CTS(port->line) ? TIOCM_CTS : 0;
-#else
-	mctrl |= TIOCM_CTS;
-#endif
-
-	return mctrl;
-}
-
-static void v850e_uart_start_tx (struct uart_port *port)
-{
-	v850e_intc_disable_irq (V850E_UART_TX_IRQ (port->line));
-	v850e_uart_tx (port);
-	v850e_intc_enable_irq (V850E_UART_TX_IRQ (port->line));
-}
-
-static void v850e_uart_stop_tx (struct uart_port *port)
-{
-	v850e_intc_disable_irq (V850E_UART_TX_IRQ (port->line));
-}
-
-static void v850e_uart_start_rx (struct uart_port *port)
-{
-	v850e_intc_enable_irq (V850E_UART_RX_IRQ (port->line));
-}
-
-static void v850e_uart_stop_rx (struct uart_port *port)
-{
-	v850e_intc_disable_irq (V850E_UART_RX_IRQ (port->line));
-}
-
-static void v850e_uart_break_ctl (struct uart_port *port, int break_ctl)
-{
-	/* Umm, do this later.  */
-}
-
-static int v850e_uart_startup (struct uart_port *port)
-{
-	int err;
-
-	/* Alloc RX irq.  */
-	err = request_irq (V850E_UART_RX_IRQ (port->line), v850e_uart_rx_irq,
-			   IRQF_DISABLED, "v850e_uart", port);
-	if (err)
-		return err;
-
-	/* Alloc TX irq.  */
-	err = request_irq (V850E_UART_TX_IRQ (port->line), v850e_uart_tx_irq,
-			   IRQF_DISABLED, "v850e_uart", port);
-	if (err) {
-		free_irq (V850E_UART_RX_IRQ (port->line), port);
-		return err;
-	}
-
-	v850e_uart_start_rx (port);
-
-	return 0;
-}
-
-static void v850e_uart_shutdown (struct uart_port *port)
-{
-	/* Disable port interrupts.  */
-	free_irq (V850E_UART_TX_IRQ (port->line), port);
-	free_irq (V850E_UART_RX_IRQ (port->line), port);
-
-	/* Turn off xmit/recv enable bits.  */
-	V850E_UART_CONFIG (port->line)
-		&= ~(V850E_UART_CONFIG_TX_ENABLE
-		     | V850E_UART_CONFIG_RX_ENABLE);
-	/* Then reset the channel.  */
-	V850E_UART_CONFIG (port->line) = 0;
-}
-
-static void
-v850e_uart_set_termios (struct uart_port *port, struct ktermios *termios,
-		        struct ktermios *old)
-{
-	unsigned cflags = termios->c_cflag;
-
-	/* Restrict flags to legal values.  */
-	if ((cflags & CSIZE) != CS7 && (cflags & CSIZE) != CS8)
-		/* The new value of CSIZE is invalid, use the old value.  */
-		cflags = (cflags & ~CSIZE)
-			| (old ? (old->c_cflag & CSIZE) : CS8);
-
-	termios->c_cflag = cflags;
-
-	v850e_uart_configure (port->line, cflags,
-			      uart_get_baud_rate (port, termios, old,
-						  v850e_uart_min_baud(),
-						  v850e_uart_max_baud()));
-}
-
-static const char *v850e_uart_type (struct uart_port *port)
-{
-	return port->type == PORT_V850E_UART ? "v850e_uart" : 0;
-}
-
-static void v850e_uart_config_port (struct uart_port *port, int flags)
-{
-	if (flags & UART_CONFIG_TYPE)
-		port->type = PORT_V850E_UART;
-}
-
-static int
-v850e_uart_verify_port (struct uart_port *port, struct serial_struct *ser)
-{
-	if (ser->type != PORT_UNKNOWN && ser->type != PORT_V850E_UART)
-		return -EINVAL;
-	if (ser->irq != V850E_UART_TX_IRQ (port->line))
-		return -EINVAL;
-	return 0;
-}
-
-static struct uart_ops v850e_uart_ops = {
-	.tx_empty	= v850e_uart_tx_empty,
-	.get_mctrl	= v850e_uart_get_mctrl,
-	.set_mctrl	= v850e_uart_set_mctrl,
-	.start_tx	= v850e_uart_start_tx,
-	.stop_tx	= v850e_uart_stop_tx,
-	.stop_rx	= v850e_uart_stop_rx,
-	.enable_ms	= v850e_uart_nop,
-	.break_ctl	= v850e_uart_break_ctl,
-	.startup	= v850e_uart_startup,
-	.shutdown	= v850e_uart_shutdown,
-	.set_termios	= v850e_uart_set_termios,
-	.type		= v850e_uart_type,
-	.release_port	= v850e_uart_nop,
-	.request_port	= v850e_uart_success,
-	.config_port	= v850e_uart_config_port,
-	.verify_port	= v850e_uart_verify_port,
-};
-
-/* Initialization and cleanup.  */
-
-static struct uart_driver v850e_uart_driver = {
-	.owner			= THIS_MODULE,
-	.driver_name		= "v850e_uart",
-	.dev_name		= "ttyS",
-	.major			= TTY_MAJOR,
-	.minor			= V850E_UART_MINOR_BASE,
-	.nr			= V850E_UART_NUM_CHANNELS,
-	.cons			= V850E_UART_CONSOLE,
-};
-
-
-static struct uart_port v850e_uart_ports[V850E_UART_NUM_CHANNELS];
-
-static int __init v850e_uart_init (void)
-{
-	int rval;
-
-	printk (KERN_INFO "%s on-chip UART\n", V850E_UART_CHIP_NAME);
-
-	rval = uart_register_driver (&v850e_uart_driver);
-	if (rval == 0) {
-		unsigned chan;
-
-		for (chan = 0; chan < V850E_UART_NUM_CHANNELS; chan++) {
-			struct uart_port *port = &v850e_uart_ports[chan];
-			
-			memset (port, 0, sizeof *port);
-
-			port->ops = &v850e_uart_ops;
-			port->line = chan;
-			port->iotype = UPIO_MEM;
-			port->flags = UPF_BOOT_AUTOCONF;
-
-			/* We actually use multiple IRQs, but the serial
-			   framework seems to mainly use this for
-			   informational purposes anyway.  Here we use the TX
-			   irq.  */
-			port->irq = V850E_UART_TX_IRQ (chan);
-
-			/* The serial framework doesn't really use these
-			   membase/mapbase fields for anything useful, but
-			   it requires that they be something non-zero to
-			   consider the port `valid', and also uses them
-			   for informational purposes.  */
-			port->membase = (void *)V850E_UART_BASE_ADDR (chan);
-			port->mapbase = V850E_UART_BASE_ADDR (chan);
-
-			/* The framework insists on knowing the uart's master
-			   clock freq, though it doesn't seem to do anything
-			   useful for us with it.  We must make it at least
-			   higher than (the maximum baud rate * 16), otherwise
-			   the framework will puke during its internal
-			   calculations, and force the baud rate to be 9600.
-			   To be accurate though, just repeat the calculation
-			   we use when actually setting the speed.  */
-			port->uartclk = v850e_uart_max_clock() * 16;
-
-			uart_add_one_port (&v850e_uart_driver, port);
-		}
-	}
-
-	return rval;
-}
-
-static void __exit v850e_uart_exit (void)
-{
-	unsigned chan;
-
-	for (chan = 0; chan < V850E_UART_NUM_CHANNELS; chan++)
-		uart_remove_one_port (&v850e_uart_driver,
-				      &v850e_uart_ports[chan]);
-
-	uart_unregister_driver (&v850e_uart_driver);
-}
-
-module_init (v850e_uart_init);
-module_exit (v850e_uart_exit);
-
-MODULE_AUTHOR ("Miles Bader");
-MODULE_DESCRIPTION ("NEC " V850E_UART_CHIP_NAME " on-chip UART");
-MODULE_LICENSE ("GPL");