serial.c

Uboot源码,非常通用的bootloader.适用于各种平台的Linux系统引导.

/*
 * (C) Copyright 2001
 * Josh Huber <[e-mail]>, Mission Critical Linux, Inc.
 *
 * modified for marvell db64360 eval board by
 * Ingo Assmus <[e-mail]>
 *
 * modified for cpci750 board by
 * Reinhard Arlt <[e-mail]>
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 */

/*
 * serial.c - serial support for esd cpci750 board
 */

/* supports the MPSC */

#include <common.h>
#include <command.h>
#include "../../Marvell/include/memory.h"
#include "serial.h"

#include "mpsc.h"

DECLARE_GLOBAL_DATA_PTR;

int serial_init (void)
{
	mpsc_init (gd->baudrate);

	return (0);
}

void serial_putc (const char c)
{
	if (c == '\n')
		mpsc_putchar ('\r');

	mpsc_putchar (c);
}

int serial_getc (void)
{
	return mpsc_getchar ();
}

int serial_tstc (void)
{
	return mpsc_test_char ();
}

void serial_setbrg (void)
{
	galbrg_set_baudrate (CONFIG_MPSC_PORT, gd->baudrate);
}


void serial_puts (const char *s)
{
	while (*s) {
		serial_putc (*s++);
	}
}

#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
void kgdb_serial_init (void)
{
}

void putDebugChar (int c)
{
	serial_putc (c);
}

void putDebugStr (const char *str)
{
	serial_puts (str);
}

int getDebugChar (void)
{
	return serial_getc ();
}

void kgdb_interruptible (int yes)
{
	return;
}
#endif /* CFG_CMD_KGDB */