blob: bd8196478cbcf2c104dffbe81871c0eb135710a9 [file] [log] [blame]
David Howellsb920de12008-02-08 04:19:31 -08001/* 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