1/* Debugging stuff for the MN10300-based processors
2 *
3 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public Licence
8 * as published by the Free Software Foundation; either version
9 * 2 of the Licence, or (at your option) any later version.
10 */
11#include <linux/sched.h>
12#include <asm/serial-regs.h>
13
14#undef MN10300_CONSOLE_ON_SERIO
15
16/*
17 * write a string directly through one of the serial ports on-board the MN10300
18 */
19#ifdef MN10300_CONSOLE_ON_SERIO
20void debug_to_serial_mnser(const char *p, int n)
21{
22	char ch;
23
24	for (; n > 0; n--) {
25		ch = *p++;
26
27#if MN10300_CONSOLE_ON_SERIO == 0
28		while (SC0STR & (SC01STR_TBF)) continue;
29		SC0TXB = ch;
30		while (SC0STR & (SC01STR_TBF)) continue;
31		if (ch == 0x0a) {
32			SC0TXB = 0x0d;
33			while (SC0STR & (SC01STR_TBF)) continue;
34		}
35
36#elif MN10300_CONSOLE_ON_SERIO == 1
37		while (SC1STR & (SC01STR_TBF)) continue;
38		SC1TXB = ch;
39		while (SC1STR & (SC01STR_TBF)) continue;
40		if (ch == 0x0a) {
41			SC1TXB = 0x0d;
42			while (SC1STR & (SC01STR_TBF)) continue;
43		}
44
45#elif MN10300_CONSOLE_ON_SERIO == 2
46		while (SC2STR & (SC2STR_TBF)) continue;
47		SC2TXB = ch;
48		while (SC2STR & (SC2STR_TBF)) continue;
49		if (ch == 0x0a) {
50			SC2TXB = 0x0d;
51			while (SC2STR & (SC2STR_TBF)) continue;
52		}
53
54#endif
55	}
56}
57#endif
58
59