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-rw-r--r--arch/frv/kernel/debug-stub.c258
1 files changed, 0 insertions, 258 deletions
diff --git a/arch/frv/kernel/debug-stub.c b/arch/frv/kernel/debug-stub.c
deleted file mode 100644
index a0228f717ef2..000000000000
--- a/arch/frv/kernel/debug-stub.c
+++ /dev/null
@@ -1,258 +0,0 @@
-/* debug-stub.c: debug-mode stub
- *
- * Copyright (C) 2004 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 License
- * as published by the Free Software Foundation; either version
- * 2 of the License, 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/init.h>
-#include <linux/serial_reg.h>
-#include <linux/start_kernel.h>
-
-#include <asm/serial-regs.h>
-#include <asm/timer-regs.h>
-#include <asm/irc-regs.h>
-#include <asm/gdb-stub.h>
-#include "gdb-io.h"
-
-/* CPU board CON5 */
-#define __UART0(X) (*(volatile uint8_t *)(UART0_BASE + (UART_##X)))
-
-#define LSR_WAIT_FOR0(STATE) \
-do { \
-} while (!(__UART0(LSR) & UART_LSR_##STATE))
-
-#define FLOWCTL_QUERY0(LINE) ({ __UART0(MSR) & UART_MSR_##LINE; })
-#define FLOWCTL_CLEAR0(LINE) do { __UART0(MCR) &= ~UART_MCR_##LINE; } while (0)
-#define FLOWCTL_SET0(LINE) do { __UART0(MCR) |= UART_MCR_##LINE; } while (0)
-
-#define FLOWCTL_WAIT_FOR0(LINE) \
-do { \
- gdbstub_do_rx(); \
-} while(!FLOWCTL_QUERY(LINE))
-
-struct frv_debug_status __debug_status;
-
-static void __init debug_stub_init(void);
-
-/*****************************************************************************/
-/*
- * debug mode handler stub
- * - we come here with the CPU in debug mode and with exceptions disabled
- * - handle debugging services for userspace
- */
-asmlinkage void debug_stub(void)
-{
- unsigned long hsr0;
- int type = 0;
-
- static u8 inited = 0;
- if (!inited) {
- debug_stub_init();
- type = -1;
- inited = 1;
- }
-
- hsr0 = __get_HSR(0);
- if (hsr0 & HSR0_ETMD)
- __set_HSR(0, hsr0 & ~HSR0_ETMD);
-
- /* disable single stepping */
- __debug_status.dcr &= ~DCR_SE;
-
- /* kernel mode can propose an exception be handled in debug mode by jumping to a special
- * location */
- if (__debug_frame->pc == (unsigned long) __break_hijack_kernel_event_breaks_here) {
- /* replace the debug frame with the kernel frame and discard
- * the top kernel context */
- *__debug_frame = *__frame;
- __frame = __debug_frame->next_frame;
- __debug_status.brr = (__debug_frame->tbr & TBR_TT) << 12;
- __debug_status.brr |= BRR_EB;
- }
-
- if (__debug_frame->pc == (unsigned long) __debug_bug_trap + 4) {
- __debug_frame->pc = __debug_frame->lr;
- type = __debug_frame->gr8;
- }
-
-#ifdef CONFIG_GDBSTUB
- gdbstub(type);
-#endif
-
- if (hsr0 & HSR0_ETMD)
- __set_HSR(0, __get_HSR(0) | HSR0_ETMD);
-
-} /* end debug_stub() */
-
-/*****************************************************************************/
-/*
- * debug stub initialisation
- */
-static void __init debug_stub_init(void)
-{
- __set_IRR(6, 0xff000000); /* map ERRs to NMI */
- __set_IITMR(1, 0x20000000); /* ERR0/1, UART0/1 IRQ detect levels */
-
- asm volatile(" movgs gr0,ibar0 \n"
- " movgs gr0,ibar1 \n"
- " movgs gr0,ibar2 \n"
- " movgs gr0,ibar3 \n"
- " movgs gr0,dbar0 \n"
- " movgs gr0,dbmr00 \n"
- " movgs gr0,dbmr01 \n"
- " movgs gr0,dbdr00 \n"
- " movgs gr0,dbdr01 \n"
- " movgs gr0,dbar1 \n"
- " movgs gr0,dbmr10 \n"
- " movgs gr0,dbmr11 \n"
- " movgs gr0,dbdr10 \n"
- " movgs gr0,dbdr11 \n"
- );
-
- /* deal with debugging stub initialisation and initial pause */
- if (__debug_frame->pc == (unsigned long) __debug_stub_init_break)
- __debug_frame->pc = (unsigned long) start_kernel;
-
- /* enable the debug events we want to trap */
- __debug_status.dcr = DCR_EBE;
-
-#ifdef CONFIG_GDBSTUB
- gdbstub_init();
-#endif
-
- __clr_MASK_all();
- __clr_MASK(15);
- __clr_RC(15);
-
-} /* end debug_stub_init() */
-
-/*****************************************************************************/
-/*
- * kernel "exit" trap for gdb stub
- */
-void debug_stub_exit(int status)
-{
-
-#ifdef CONFIG_GDBSTUB
- gdbstub_exit(status);
-#endif
-
-} /* end debug_stub_exit() */
-
-/*****************************************************************************/
-/*
- * send string to serial port
- */
-void debug_to_serial(const char *p, int n)
-{
- char ch;
-
- for (; n > 0; n--) {
- ch = *p++;
- FLOWCTL_SET0(DTR);
- LSR_WAIT_FOR0(THRE);
- // FLOWCTL_WAIT_FOR(CTS);
-
- if (ch == 0x0a) {
- __UART0(TX) = 0x0d;
- mb();
- LSR_WAIT_FOR0(THRE);
- // FLOWCTL_WAIT_FOR(CTS);
- }
- __UART0(TX) = ch;
- mb();
-
- FLOWCTL_CLEAR0(DTR);
- }
-
-} /* end debug_to_serial() */
-
-/*****************************************************************************/
-/*
- * send string to serial port
- */
-void debug_to_serial2(const char *fmt, ...)
-{
- va_list va;
- char buf[64];
- int n;
-
- va_start(va, fmt);
- n = vsprintf(buf, fmt, va);
- va_end(va);
-
- debug_to_serial(buf, n);
-
-} /* end debug_to_serial2() */
-
-/*****************************************************************************/
-/*
- * set up the ttyS0 serial port baud rate timers
- */
-void __init console_set_baud(unsigned baud)
-{
- unsigned value, high, low;
- u8 lcr;
-
- /* work out the divisor to give us the nearest higher baud rate */
- value = __serial_clock_speed_HZ / 16 / baud;
-
- /* determine the baud rate range */
- high = __serial_clock_speed_HZ / 16 / value;
- low = __serial_clock_speed_HZ / 16 / (value + 1);
-
- /* pick the nearest bound */
- if (low + (high - low) / 2 > baud)
- value++;
-
- lcr = __UART0(LCR);
- __UART0(LCR) |= UART_LCR_DLAB;
- mb();
- __UART0(DLL) = value & 0xff;
- __UART0(DLM) = (value >> 8) & 0xff;
- mb();
- __UART0(LCR) = lcr;
- mb();
-
-} /* end console_set_baud() */
-
-/*****************************************************************************/
-/*
- *
- */
-int __init console_get_baud(void)
-{
- unsigned value;
- u8 lcr;
-
- lcr = __UART0(LCR);
- __UART0(LCR) |= UART_LCR_DLAB;
- mb();
- value = __UART0(DLM) << 8;
- value |= __UART0(DLL);
- __UART0(LCR) = lcr;
- mb();
-
- return value;
-} /* end console_get_baud() */
-
-/*****************************************************************************/
-/*
- * display BUG() info
- */
-#ifndef CONFIG_NO_KERNEL_MSG
-void __debug_bug_printk(const char *file, unsigned line)
-{
- printk("kernel BUG at %s:%d!\n", file, line);
-
-} /* end __debug_bug_printk() */
-#endif