1 files changed, 0 insertions, 342 deletions

diff --git a/arch/ppc/xmon/start.c b/arch/ppc/xmon/start.c
deleted file mode 100644
index 9056fe58aaa1..000000000000
--- a/arch/ppc/xmon/start.c
+++ /dev/null
@@ -1,342 +0,0 @@
-/*
- * Copyright (C) 1996 Paul Mackerras.
- */
-#include <linux/string.h>
-#include <asm/machdep.h>
-#include <asm/io.h>
-#include <asm/page.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/sysrq.h>
-#include <linux/bitops.h>
-#include <asm/xmon.h>
-#include <asm/errno.h>
-#include <asm/processor.h>
-#include <asm/delay.h>
-#include <asm/btext.h>
-#include <asm/ibm4xx.h>
-
-static volatile unsigned char *sccc, *sccd;
-unsigned int TXRDY, RXRDY, DLAB;
-static int xmon_expect(const char *str, unsigned int timeout);
-
-static int via_modem;
-
-#define TB_SPEED        25000000
-
-static inline unsigned int readtb(void)
-{
-        unsigned int ret;
-
-        asm volatile("mftb %0" : "=r" (ret) :);
-        return ret;
-}
-
-void buf_access(void)
-{
-        if (DLAB)
-                sccd[3] &= ~DLAB;       /* reset DLAB */
-}
-
-
-#ifdef CONFIG_MAGIC_SYSRQ
-static void sysrq_handle_xmon(int key, struct pt_regs *regs,
-                              struct tty_struct *tty)
-{
-        xmon(regs);
-}
-
-static struct sysrq_key_op sysrq_xmon_op =
-{
-        .handler =      sysrq_handle_xmon,
-        .help_msg =     "Xmon",
-        .action_msg =   "Entering xmon",
-};
-#endif
-
-void
-xmon_map_scc(void)
-{
-#if defined(CONFIG_405GP)
-        sccd = (volatile unsigned char *)0xef600300;
-#elif defined(CONFIG_440EP)
-        sccd = (volatile unsigned char *) ioremap(PPC440EP_UART0_ADDR, 8);
-#elif defined(CONFIG_440SP)
-        sccd = (volatile unsigned char *) ioremap64(PPC440SP_UART0_ADDR, 8);
-#elif defined(CONFIG_440SPE)
-        sccd = (volatile unsigned char *) ioremap64(PPC440SPE_UART0_ADDR, 8);
-#elif defined(CONFIG_44x)
-        /* This is the default for 44x platforms.  Any boards that have a
-           different UART address need to be put in cases before this or the
-           port will be mapped incorrectly */
-        sccd = (volatile unsigned char *) ioremap64(PPC440GP_UART0_ADDR, 8);
-#endif /* platform */
-
-#ifndef CONFIG_PPC_PREP
-        sccc = sccd + 5;
-        TXRDY = 0x20;
-        RXRDY = 1;
-        DLAB = 0x80;
-#endif
-
-        register_sysrq_key('x', &sysrq_xmon_op);
-}
-
-static int scc_initialized;
-
-void xmon_init_scc(void);
-
-int
-xmon_write(void *handle, void *ptr, int nb)
-{
-        char *p = ptr;
-        int i, c, ct;
-
-#ifdef CONFIG_SMP
-        static unsigned long xmon_write_lock;
-        int lock_wait = 1000000;
-        int locked;
-
-        while ((locked = test_and_set_bit(0, &xmon_write_lock)) != 0)
-                if (--lock_wait == 0)
-                        break;
-#endif
-
-        if (!scc_initialized)
-                xmon_init_scc();
-        ct = 0;
-        for (i = 0; i < nb; ++i) {
-                while ((*sccc & TXRDY) == 0)
-                        ;
-                c = p[i];
-                if (c == '\n' && !ct) {
-                        c = '\r';
-                        ct = 1;
-                        --i;
-                } else {
-                        ct = 0;
-                }
-                buf_access();
-                *sccd = c;
-                eieio();
-        }
-
-#ifdef CONFIG_SMP
-        if (!locked)
-                clear_bit(0, &xmon_write_lock);
-#endif
-        return nb;
-}
-
-int xmon_wants_key;
-
-
-int
-xmon_read(void *handle, void *ptr, int nb)
-{
-    char *p = ptr;
-    int i;
-
-    if (!scc_initialized)
-        xmon_init_scc();
-    for (i = 0; i < nb; ++i) {
-        while ((*sccc & RXRDY) == 0)
-            ;
-        buf_access();
-        *p++ = *sccd;
-    }
-    return i;
-}
-
-int
-xmon_read_poll(void)
-{
-        if ((*sccc & RXRDY) == 0) {
-                ;
-                return -1;
-        }
-        buf_access();
-        return *sccd;
-}
-
-void
-xmon_init_scc(void)
-{
-        scc_initialized = 1;
-        if (via_modem) {
-                for (;;) {
-                        xmon_write(NULL, "ATE1V1\r", 7);
-                        if (xmon_expect("OK", 5)) {
-                                xmon_write(NULL, "ATA\r", 4);
-                                if (xmon_expect("CONNECT", 40))
-                                        break;
-                        }
-                        xmon_write(NULL, "+++", 3);
-                        xmon_expect("OK", 3);
-                }
-        }
-}
-
-
-void *xmon_stdin;
-void *xmon_stdout;
-void *xmon_stderr;
-
-void
-xmon_init(int arg)
-{
-        xmon_map_scc();
-}
-
-int
-xmon_putc(int c, void *f)
-{
-    char ch = c;
-
-    if (c == '\n')
-        xmon_putc('\r', f);
-    return xmon_write(f, &ch, 1) == 1? c: -1;
-}
-
-int
-xmon_putchar(int c)
-{
-    return xmon_putc(c, xmon_stdout);
-}
-
-int
-xmon_fputs(char *str, void *f)
-{
-    int n = strlen(str);
-
-    return xmon_write(f, str, n) == n? 0: -1;
-}
-
-int
-xmon_readchar(void)
-{
-    char ch;
-
-    for (;;) {
-        switch (xmon_read(xmon_stdin, &ch, 1)) {
-        case 1:
-            return ch;
-        case -1:
-            xmon_printf("read(stdin) returned -1\r\n", 0, 0);
-            return -1;
-        }
-    }
-}
-
-static char line[256];
-static char *lineptr;
-static int lineleft;
-
-int xmon_expect(const char *str, unsigned int timeout)
-{
-        int c;
-        unsigned int t0;
-
-        timeout *= TB_SPEED;
-        t0 = readtb();
-        do {
-                lineptr = line;
-                for (;;) {
-                        c = xmon_read_poll();
-                        if (c == -1) {
-                                if (readtb() - t0 > timeout)
-                                        return 0;
-                                continue;
-                        }
-                        if (c == '\n')
-                                break;
-                        if (c != '\r' && lineptr < &line[sizeof(line) - 1])
-                                *lineptr++ = c;
-                }
-                *lineptr = 0;
-        } while (strstr(line, str) == NULL);
-        return 1;
-}
-
-int
-xmon_getchar(void)
-{
-    int c;
-
-    if (lineleft == 0) {
-        lineptr = line;
-        for (;;) {
-            c = xmon_readchar();
-            if (c == -1 || c == 4)
-                break;
-            if (c == '\r' || c == '\n') {
-                *lineptr++ = '\n';
-                xmon_putchar('\n');
-                break;
-            }
-            switch (c) {
-            case 0177:
-            case '\b':
-                if (lineptr > line) {
-                    xmon_putchar('\b');
-                    xmon_putchar(' ');
-                    xmon_putchar('\b');
-                    --lineptr;
-                }
-                break;
-            case 'U' & 0x1F:
-                while (lineptr > line) {
-                    xmon_putchar('\b');
-                    xmon_putchar(' ');
-                    xmon_putchar('\b');
-                    --lineptr;
-                }
-                break;
-            default:
-                if (lineptr >= &line[sizeof(line) - 1])
-                    xmon_putchar('\a');
-                else {
-                    xmon_putchar(c);
-                    *lineptr++ = c;
-                }
-            }
-        }
-        lineleft = lineptr - line;
-        lineptr = line;
-    }
-    if (lineleft == 0)
-        return -1;
-    --lineleft;
-    return *lineptr++;
-}
-
-char *
-xmon_fgets(char *str, int nb, void *f)
-{
-    char *p;
-    int c;
-
-    for (p = str; p < str + nb - 1; ) {
-        c = xmon_getchar();
-        if (c == -1) {
-            if (p == str)
-                return NULL;
-            break;
-        }
-        *p++ = c;
-        if (c == '\n')
-            break;
-    }
-    *p = 0;
-    return str;
-}
-
-void
-xmon_enter(void)
-{
-}
-
-void
-xmon_leave(void)
-{
-}