blob: 43bcfb4f816700c5f501aaf377b6489664cb8171 [file] [log] [blame]
* Carsten Langgaard,
* Copyright (C) 1999,2000 MIPS Technologies, Inc. All rights reserved.
* This program is free software; you can distribute it and/or modify it
* under the terms of the GNU General Public License (Version 2) as
* published by the Free Software Foundation.
* This program is distributed in the hope 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.
* Putting things on the screen/serial line using YAMONs facilities.
#include <linux/console.h>
#include <linux/init.h>
#include <linux/serial_reg.h>
#include <asm/io.h>
#define PORT(offset) (0x3f8 + (offset))
static inline unsigned int serial_in(int offset)
return inb(PORT(offset));
static inline void serial_out(int offset, int value)
outb(value, PORT(offset));
int prom_putchar(char c)
while ((serial_in(UART_LSR) & UART_LSR_THRE) == 0)
serial_out(UART_TX, c);
return 1;