mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-28 23:51:33 +00:00
172 lines
3.2 KiB
C
172 lines
3.2 KiB
C
/*
|
|
* (C) Copyright 2001
|
|
* Josh Huber <huber@mclx.com>, Mission Critical Linux, Inc.
|
|
*
|
|
* modified for marvell db64360 eval board by
|
|
* Ingo Assmus <ingo.assmus@keymile.com>
|
|
*
|
|
* 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 the gal ev board
|
|
*/
|
|
|
|
/* supports both the 16650 duart and the MPSC */
|
|
|
|
#include <common.h>
|
|
#include <command.h>
|
|
#include "../include/memory.h"
|
|
#include "serial.h"
|
|
|
|
#ifdef CONFIG_DB64360
|
|
#include "../db64360/mpsc.h"
|
|
#endif
|
|
|
|
#ifdef CONFIG_DB64460
|
|
#include "../db64460/mpsc.h"
|
|
#endif
|
|
|
|
#include "ns16550.h"
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
#ifdef CONFIG_MPSC
|
|
|
|
|
|
int serial_init (void)
|
|
{
|
|
#if (defined CONFIG_SYS_INIT_CHAN1) || (defined CONFIG_SYS_INIT_CHAN2)
|
|
int clock_divisor = 230400 / gd->baudrate;
|
|
#endif
|
|
|
|
mpsc_init (gd->baudrate);
|
|
|
|
/* init the DUART chans so that KGDB in the kernel can use them */
|
|
#ifdef CONFIG_SYS_INIT_CHAN1
|
|
NS16550_reinit (COM_PORTS[0], clock_divisor);
|
|
#endif
|
|
#ifdef CONFIG_SYS_INIT_CHAN2
|
|
NS16550_reinit (COM_PORTS[1], clock_divisor);
|
|
#endif
|
|
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);
|
|
}
|
|
|
|
#else /* ! CONFIG_MPSC */
|
|
|
|
int serial_init (void)
|
|
{
|
|
int clock_divisor = 230400 / gd->baudrate;
|
|
|
|
#ifdef CONFIG_SYS_INIT_CHAN1
|
|
(void) NS16550_init (0, clock_divisor);
|
|
#endif
|
|
#ifdef CONFIG_SYS_INIT_CHAN2
|
|
(void) NS16550_init (1, clock_divisor);
|
|
#endif
|
|
return (0);
|
|
}
|
|
|
|
void serial_putc (const char c)
|
|
{
|
|
if (c == '\n')
|
|
NS16550_putc (COM_PORTS[CONFIG_SYS_DUART_CHAN], '\r');
|
|
|
|
NS16550_putc (COM_PORTS[CONFIG_SYS_DUART_CHAN], c);
|
|
}
|
|
|
|
int serial_getc (void)
|
|
{
|
|
return NS16550_getc (COM_PORTS[CONFIG_SYS_DUART_CHAN]);
|
|
}
|
|
|
|
int serial_tstc (void)
|
|
{
|
|
return NS16550_tstc (COM_PORTS[CONFIG_SYS_DUART_CHAN]);
|
|
}
|
|
|
|
void serial_setbrg (void)
|
|
{
|
|
int clock_divisor = 230400 / gd->baudrate;
|
|
|
|
#ifdef CONFIG_SYS_INIT_CHAN1
|
|
NS16550_reinit (COM_PORTS[0], clock_divisor);
|
|
#endif
|
|
#ifdef CONFIG_SYS_INIT_CHAN2
|
|
NS16550_reinit (COM_PORTS[1], clock_divisor);
|
|
#endif
|
|
}
|
|
|
|
#endif /* CONFIG_MPSC */
|
|
|
|
void serial_puts (const char *s)
|
|
{
|
|
while (*s) {
|
|
serial_putc (*s++);
|
|
}
|
|
}
|
|
|
|
#if defined(CONFIG_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
|