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/*
* (C) Copyright 2000
* Rob Taylor, Flying Pig Systems. robt@flyingpig.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
*/
#include <common.h>
#include <serial.h>
#include <linux/compiler.h>
#include "ns16550.h"
DECLARE_GLOBAL_DATA_PTR;
#if CONFIG_CONS_INDEX == 1
static struct NS16550 *console =
(struct NS16550 *) (CONFIG_SYS_EUMB_ADDR + 0x4500);
#elif CONFIG_CONS_INDEX == 2
static struct NS16550 *console =
(struct NS16550 *) (CONFIG_SYS_EUMB_ADDR + 0x4500);
#else
#error no valid console defined
#endif
extern ulong get_bus_freq (ulong);
static int bmw_serial_init(void)
{
int clock_divisor = gd->bus_clk / 16 / gd->baudrate;
NS16550_init (CONFIG_CONS_INDEX - 1, clock_divisor);
return (0);
}
static void bmw_serial_putc(const char c)
{
if (c == '\n') {
serial_putc ('\r');
}
NS16550_putc (console, c);
}
static void bmw_serial_puts(const char *s)
{
while (*s) {
serial_putc (*s++);
}
}
static int bmw_serial_getc(void)
{
return NS16550_getc (console);
}
static int bmw_serial_tstc(void)
{
return NS16550_tstc (console);
}
static void bmw_serial_setbrg(void)
{
int clock_divisor = get_bus_freq (0) / 16 / gd->baudrate;
NS16550_reinit (console, clock_divisor);
}
static struct serial_device bmw_serial_drv = {
.name = "bmw_serial",
.start = bmw_serial_init,
.stop = NULL,
.setbrg = bmw_serial_setbrg,
.putc = bmw_serial_putc,
.puts = bmw_serial_puts,
.getc = bmw_serial_getc,
.tstc = bmw_serial_tstc,
};
void bmw_serial_initialize(void)
{
serial_register(&bmw_serial_drv);
}
__weak struct serial_device *default_serial_console(void)
{
return &bmw_serial_drv;
}
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