1 files changed, 0 insertions, 303 deletions
diff --git a/arch/mn10300/kernel/gdb-io-ttysm.c b/arch/mn10300/kernel/gdb-io-ttysm.c
deleted file mode 100644
index caae8cac9db1..000000000000
--- a/arch/mn10300/kernel/gdb-io-ttysm.c
+++ /dev/null
@@ -1,303 +0,0 @@
-/* MN10300 On-chip serial driver for gdbstub I/O
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/string.h>
-#include <linux/kernel.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/console.h>
-#include <linux/init.h>
-#include <linux/tty.h>
-#include <asm/pgtable.h>
-#include <asm/gdb-stub.h>
-#include <asm/exceptions.h>
-#include <unit/clock.h>
-#include "mn10300-serial.h"
-
-#if defined(CONFIG_GDBSTUB_ON_TTYSM0)
-struct mn10300_serial_port *const gdbstub_port = &mn10300_serial_port_sif0;
-#elif defined(CONFIG_GDBSTUB_ON_TTYSM1)
-struct mn10300_serial_port *const gdbstub_port = &mn10300_serial_port_sif1;
-#else
-struct mn10300_serial_port *const gdbstub_port = &mn10300_serial_port_sif2;
-#endif
-
-
-/*
- * initialise the GDB stub I/O routines
- */
-void __init gdbstub_io_init(void)
-{
-	uint16_t scxctr;
-	int tmp;
-
-	switch (gdbstub_port->clock_src) {
-	case MNSCx_CLOCK_SRC_IOCLK:
-		gdbstub_port->ioclk = MN10300_IOCLK;
-		break;
-
-#ifdef MN10300_IOBCLK
-	case MNSCx_CLOCK_SRC_IOBCLK:
-		gdbstub_port->ioclk = MN10300_IOBCLK;
-		break;
-#endif
-	default:
-		BUG();
-	}
-
-	/* set up the serial port */
-	gdbstub_io_set_baud(115200);
-
-	/* we want to get serial receive interrupts */
-	set_intr_level(gdbstub_port->rx_irq,
-		NUM2GxICR_LEVEL(CONFIG_DEBUGGER_IRQ_LEVEL));
-	set_intr_level(gdbstub_port->tx_irq,
-		NUM2GxICR_LEVEL(CONFIG_DEBUGGER_IRQ_LEVEL));
-	set_intr_stub(NUM2EXCEP_IRQ_LEVEL(CONFIG_DEBUGGER_IRQ_LEVEL),
-		gdbstub_io_rx_handler);
-
-	*gdbstub_port->rx_icr |= GxICR_ENABLE;
-	tmp = *gdbstub_port->rx_icr;
-
-	/* enable the device */
-	scxctr = SC01CTR_CLN_8BIT;	/* 1N8 */
-	switch (gdbstub_port->div_timer) {
-	case MNSCx_DIV_TIMER_16BIT:
-		scxctr |= SC0CTR_CK_TM8UFLOW_8; /* == SC1CTR_CK_TM9UFLOW_8
-						   == SC2CTR_CK_TM10UFLOW_8 */
-		break;
-
-	case MNSCx_DIV_TIMER_8BIT:
-		scxctr |= SC0CTR_CK_TM2UFLOW_8;
-		break;
-	}
-
-	scxctr |= SC01CTR_TXE | SC01CTR_RXE;
-
-	*gdbstub_port->_control = scxctr;
-	tmp = *gdbstub_port->_control;
-
-	/* permit level 0 IRQs only */
-	arch_local_change_intr_mask_level(
-		NUM2EPSW_IM(CONFIG_DEBUGGER_IRQ_LEVEL + 1));
-}
-
-/*
- * set up the GDB stub serial port baud rate timers
- */
-void gdbstub_io_set_baud(unsigned baud)
-{
-	const unsigned bits = 10; /* 1 [start] + 8 [data] + 0 [parity] +
-				   * 1 [stop] */
-	unsigned long ioclk = gdbstub_port->ioclk;
-	unsigned xdiv, tmp;
-	uint16_t tmxbr;
-	uint8_t tmxmd;
-
-	if (!baud) {
-		baud = 9600;
-	} else if (baud == 134) {
-		baud = 269;	/* 134 is really 134.5 */
-		xdiv = 2;
-	}
-
-try_alternative:
-	xdiv = 1;
-
-	switch (gdbstub_port->div_timer) {
-	case MNSCx_DIV_TIMER_16BIT:
-		tmxmd = TM8MD_SRC_IOCLK;
-		tmxbr = tmp = (ioclk / (baud * xdiv) + 4) / 8 - 1;
-		if (tmp > 0 && tmp <= 65535)
-			goto timer_okay;
-
-		tmxmd = TM8MD_SRC_IOCLK_8;
-		tmxbr = tmp = (ioclk / (baud * 8 * xdiv) + 4) / 8 - 1;
-		if (tmp > 0 && tmp <= 65535)
-			goto timer_okay;
-
-		tmxmd = TM8MD_SRC_IOCLK_32;
-		tmxbr = tmp = (ioclk / (baud * 32 * xdiv) + 4) / 8 - 1;
-		if (tmp > 0 && tmp <= 65535)
-			goto timer_okay;
-
-		break;
-
-	case MNSCx_DIV_TIMER_8BIT:
-		tmxmd = TM2MD_SRC_IOCLK;
-		tmxbr = tmp = (ioclk / (baud * xdiv) + 4) / 8 - 1;
-		if (tmp > 0 && tmp <= 255)
-			goto timer_okay;
-
-		tmxmd = TM2MD_SRC_IOCLK_8;
-		tmxbr = tmp = (ioclk / (baud * 8 * xdiv) + 4) / 8 - 1;
-		if (tmp > 0 && tmp <= 255)
-			goto timer_okay;
-
-		tmxmd = TM2MD_SRC_IOCLK_32;
-		tmxbr = tmp = (ioclk / (baud * 32 * xdiv) + 4) / 8 - 1;
-		if (tmp > 0 && tmp <= 255)
-			goto timer_okay;
-		break;
-	}
-
-	/* as a last resort, if the quotient is zero, default to 9600 bps */
-	baud = 9600;
-	goto try_alternative;
-
-timer_okay:
-	gdbstub_port->uart.timeout = (2 * bits * HZ) / baud;
-	gdbstub_port->uart.timeout += HZ / 50;
-
-	/* set the timer to produce the required baud rate */
-	switch (gdbstub_port->div_timer) {
-	case MNSCx_DIV_TIMER_16BIT:
-		*gdbstub_port->_tmxmd = 0;
-		*gdbstub_port->_tmxbr = tmxbr;
-		*gdbstub_port->_tmxmd = TM8MD_INIT_COUNTER;
-		*gdbstub_port->_tmxmd = tmxmd | TM8MD_COUNT_ENABLE;
-		break;
-
-	case MNSCx_DIV_TIMER_8BIT:
-		*gdbstub_port->_tmxmd = 0;
-		*(volatile u8 *) gdbstub_port->_tmxbr = (u8)tmxbr;
-		*gdbstub_port->_tmxmd = TM2MD_INIT_COUNTER;
-		*gdbstub_port->_tmxmd = tmxmd | TM2MD_COUNT_ENABLE;
-		break;
-	}
-}
-
-/*
- * wait for a character to come from the debugger
- */
-int gdbstub_io_rx_char(unsigned char *_ch, int nonblock)
-{
-	unsigned ix;
-	u8 ch, st;
-#if defined(CONFIG_MN10300_WD_TIMER)
-	int cpu;
-#endif
-
-	*_ch = 0xff;
-
-	if (gdbstub_rx_unget) {
-		*_ch = gdbstub_rx_unget;
-		gdbstub_rx_unget = 0;
-		return 0;
-	}
-
-try_again:
-	/* pull chars out of the buffer */
-	ix = gdbstub_rx_outp;
-	barrier();
-	if (ix == gdbstub_rx_inp) {
-		if (nonblock)
-			return -EAGAIN;
-#ifdef CONFIG_MN10300_WD_TIMER
-	for (cpu = 0; cpu < NR_CPUS; cpu++)
-		watchdog_alert_counter[cpu] = 0;
-#endif
-		goto try_again;
-	}
-
-	ch = gdbstub_rx_buffer[ix++];
-	st = gdbstub_rx_buffer[ix++];
-	barrier();
-	gdbstub_rx_outp = ix & (PAGE_SIZE - 1);
-
-	st &= SC01STR_RXF | SC01STR_RBF | SC01STR_FEF | SC01STR_PEF |
-		SC01STR_OEF;
-
-	/* deal with what we've got
-	 * - note that the UART doesn't do BREAK-detection for us
-	 */
-	if (st & SC01STR_FEF && ch == 0) {
-		switch (gdbstub_port->rx_brk) {
-		case 0:	gdbstub_port->rx_brk = 1;	goto try_again;
-		case 1:	gdbstub_port->rx_brk = 2;	goto try_again;
-		case 2:
-			gdbstub_port->rx_brk = 3;
-			gdbstub_proto("### GDB MNSERIAL Rx Break Detected"
-				      " ###\n");
-			return -EINTR;
-		default:
-			goto try_again;
-		}
-	} else if (st & SC01STR_FEF) {
-		if (gdbstub_port->rx_brk)
-			goto try_again;
-
-		gdbstub_proto("### GDB MNSERIAL Framing Error ###\n");
-		return -EIO;
-	} else if (st & SC01STR_OEF) {
-		if (gdbstub_port->rx_brk)
-			goto try_again;
-
-		gdbstub_proto("### GDB MNSERIAL Overrun Error ###\n");
-		return -EIO;
-	} else if (st & SC01STR_PEF) {
-		if (gdbstub_port->rx_brk)
-			goto try_again;
-
-		gdbstub_proto("### GDB MNSERIAL Parity Error ###\n");
-		return -EIO;
-	} else {
-		/* look for the tail-end char on a break run */
-		if (gdbstub_port->rx_brk == 3) {
-			switch (ch) {
-			case 0xFF:
-			case 0xFE:
-			case 0xFC:
-			case 0xF8:
-			case 0xF0:
-			case 0xE0:
-			case 0xC0:
-			case 0x80:
-			case 0x00:
-				gdbstub_port->rx_brk = 0;
-				goto try_again;
-			default:
-				break;
-			}
-		}
-
-		gdbstub_port->rx_brk = 0;
-		gdbstub_io("### GDB Rx %02x (st=%02x) ###\n", ch, st);
-		*_ch = ch & 0x7f;
-		return 0;
-	}
-}
-
-/*
- * send a character to the debugger
- */
-void gdbstub_io_tx_char(unsigned char ch)
-{
-	while (*gdbstub_port->_status & SC01STR_TBF)
-		continue;
-
-	if (ch == 0x0a) {
-		*(u8 *) gdbstub_port->_txb = 0x0d;
-		while (*gdbstub_port->_status & SC01STR_TBF)
-			continue;
-	}
-
-	*(u8 *) gdbstub_port->_txb = ch;
-}
-
-/*
- * flush the transmission buffers
- */
-void gdbstub_io_tx_flush(void)
-{
-	while (*gdbstub_port->_status & (SC01STR_TBF | SC01STR_TXF))
-		continue;
-}