mirror of https://gitee.com/openkylin/linux.git
59 lines
1.4 KiB
C
59 lines
1.4 KiB
C
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/* Debugging stuff for the MN10300-based processors
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*
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* Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
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* Written by David Howells (dhowells@redhat.com)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public Licence
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* as published by the Free Software Foundation; either version
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* 2 of the Licence, or (at your option) any later version.
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*/
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#include <linux/sched.h>
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#include <asm/serial-regs.h>
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#undef MN10300_CONSOLE_ON_SERIO
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/*
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* write a string directly through one of the serial ports on-board the MN10300
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*/
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#ifdef MN10300_CONSOLE_ON_SERIO
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void debug_to_serial_mnser(const char *p, int n)
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{
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char ch;
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for (; n > 0; n--) {
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ch = *p++;
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#if MN10300_CONSOLE_ON_SERIO == 0
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while (SC0STR & (SC01STR_TBF)) continue;
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SC0TXB = ch;
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while (SC0STR & (SC01STR_TBF)) continue;
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if (ch == 0x0a) {
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SC0TXB = 0x0d;
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while (SC0STR & (SC01STR_TBF)) continue;
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}
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#elif MN10300_CONSOLE_ON_SERIO == 1
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while (SC1STR & (SC01STR_TBF)) continue;
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SC1TXB = ch;
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while (SC1STR & (SC01STR_TBF)) continue;
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if (ch == 0x0a) {
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SC1TXB = 0x0d;
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while (SC1STR & (SC01STR_TBF)) continue;
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}
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#elif MN10300_CONSOLE_ON_SERIO == 2
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while (SC2STR & (SC2STR_TBF)) continue;
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SC2TXB = ch;
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while (SC2STR & (SC2STR_TBF)) continue;
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if (ch == 0x0a) {
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SC2TXB = 0x0d;
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while (SC2STR & (SC2STR_TBF)) continue;
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}
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#endif
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}
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}
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#endif
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