Subversion Repositories or1k_soc_on_altera_embedded_dev_kit

/*

 *  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.

 *

 * Carsten Langgaard, carstenl@mips.com

 * Copyright (C) 1999,2000 MIPS Technologies, Inc.  All rights reserved.

 * Copyright (C) 2007 MIPS Technologies, Inc.

 *   written by Ralf Baechle

 */

#include <linux/init.h>

#include <linux/io.h>

#include <linux/serial_reg.h>

static inline unsigned int serial_in(int offset)

{

        return inb(0x3f8 + offset);

}

static inline void serial_out(int offset, int value)

{

        outb(value, 0x3f8 + offset);

}

void __init prom_putchar(char c)

{

        while ((serial_in(UART_LSR) & UART_LSR_THRE) == 0)

                ;

        serial_out(UART_TX, c);

}