mn10300-debug.c
1.38 KB
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/* Debugging stuff for the MN10300-based processors
*
* Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public Licence
* as published by the Free Software Foundation; either version
* 2 of the Licence, or (at your option) any later version.
*/
#include <linux/sched.h>
#include <asm/serial-regs.h>
#undef MN10300_CONSOLE_ON_SERIO
/*
* write a string directly through one of the serial ports on-board the MN10300
*/
#ifdef MN10300_CONSOLE_ON_SERIO
void debug_to_serial_mnser(const char *p, int n)
{
char ch;
for (; n > 0; n--) {
ch = *p++;
#if MN10300_CONSOLE_ON_SERIO == 0
while (SC0STR & (SC01STR_TBF)) continue;
SC0TXB = ch;
while (SC0STR & (SC01STR_TBF)) continue;
if (ch == 0x0a) {
SC0TXB = 0x0d;
while (SC0STR & (SC01STR_TBF)) continue;
}
#elif MN10300_CONSOLE_ON_SERIO == 1
while (SC1STR & (SC01STR_TBF)) continue;
SC1TXB = ch;
while (SC1STR & (SC01STR_TBF)) continue;
if (ch == 0x0a) {
SC1TXB = 0x0d;
while (SC1STR & (SC01STR_TBF)) continue;
}
#elif MN10300_CONSOLE_ON_SERIO == 2
while (SC2STR & (SC2STR_TBF)) continue;
SC2TXB = ch;
while (SC2STR & (SC2STR_TBF)) continue;
if (ch == 0x0a) {
SC2TXB = 0x0d;
while (SC2STR & (SC2STR_TBF)) continue;
}
#endif
}
}
#endif