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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2003 Eric Biederman
*
* 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; version 2 of the License.
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <console/console.h>
#include <uart8250.h>
#include <pc80/mc146818rtc.h>
static void ttyS0_init(void)
{
static const unsigned char div[8] = { 1, 2, 3, 6, 12, 24, 48, 96 };
int b_index = 0;
unsigned int divisor = CONFIG_TTYS0_DIV;
if (get_option(&b_index, "baud_rate") == 0) {
divisor = div[b_index];
}
uart8250_init(CONFIG_TTYS0_BASE, divisor);
}
static void ttyS0_tx_byte(unsigned char data)
{
uart8250_tx_byte(CONFIG_TTYS0_BASE, data);
}
static unsigned char ttyS0_rx_byte(void)
{
return uart8250_rx_byte(CONFIG_TTYS0_BASE);
}
static int ttyS0_tst_byte(void)
{
return uart8250_can_rx_byte(CONFIG_TTYS0_BASE);
}
static const struct console_driver uart8250_console __console = {
.init = ttyS0_init,
.tx_byte = ttyS0_tx_byte,
.rx_byte = ttyS0_rx_byte,
.tst_byte = ttyS0_tst_byte,
};
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