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b920de1b DH |
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 | |
20 | void 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 |