| David Howells | b920de1 | 2008-02-08 04:19:31 -0800 | [diff] [blame] | 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 | |