1 files changed, 7 insertions, 160 deletions

diff --git a/arch/powerpc/xmon/start_64.c b/arch/powerpc/xmon/start_64.c
index e50c158191e..712552c4f24 100644
--- a/arch/powerpc/xmon/start_64.c
+++ b/arch/powerpc/xmon/start_64.c
@@ -6,182 +6,29 @@
  *      as published by the Free Software Foundation; either version
  *      2 of the License, or (at your option) any later version.
  */
-#include <linux/config.h>
-#include <linux/string.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/sysrq.h>
-#include <linux/init.h>
 #include <asm/machdep.h>
-#include <asm/io.h>
-#include <asm/page.h>
-#include <asm/prom.h>
-#include <asm/processor.h>
 #include <asm/udbg.h>
-#include <asm/system.h>
 #include "nonstdio.h"
 
-#ifdef CONFIG_MAGIC_SYSRQ
-
-static void sysrq_handle_xmon(int key, struct pt_regs *pt_regs,
-			      struct tty_struct *tty) 
-{
-	/* ensure xmon is enabled */
-	xmon_init(1);
-	debugger(pt_regs);
-}
-
-static struct sysrq_key_op sysrq_xmon_op = 
+void xmon_map_scc(void)
 {
-	.handler =	sysrq_handle_xmon,
-	.help_msg =	"Xmon",
-	.action_msg =	"Entering xmon",
-};
-
-static int __init setup_xmon_sysrq(void)
-{
-	register_sysrq_key('x', &sysrq_xmon_op);
-	return 0;
 }
-__initcall(setup_xmon_sysrq);
-#endif /* CONFIG_MAGIC_SYSRQ */
 
-int
-xmon_write(void *handle, void *ptr, int nb)
+int xmon_write(void *ptr, int nb)
 {
 	return udbg_write(ptr, nb);
 }
 
-int
-xmon_read(void *handle, void *ptr, int nb)
+int xmon_readchar(void)
 {
-	return udbg_read(ptr, nb);
+	if (udbg_getc)
+		return udbg_getc();
+	return -1;
 }
 
-int
-xmon_read_poll(void)
+int xmon_read_poll(void)
 {
 	if (udbg_getc_poll)
 		return udbg_getc_poll();
 	return -1;
 }
- 
-FILE *xmon_stdin;
-FILE *xmon_stdout;
-
-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_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;
-}