1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License.  See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * Copyright (C) 2002, 2003, 06, 07 Ralf Baechle (ralf@linux-mips.org)
7 * Copyright (C) 2007 MIPS Technologies, Inc.
8 *   written by Ralf Baechle (ralf@linux-mips.org)
9 */
10#include <linux/console.h>
11#include <linux/init.h>
12
13extern void prom_putchar(char);
14
15static void __init
16early_console_write(struct console *con, const char *s, unsigned n)
17{
18	while (n-- && *s) {
19		if (*s == '\n')
20			prom_putchar('\r');
21		prom_putchar(*s);
22		s++;
23	}
24}
25
26static struct console early_console __initdata = {
27	.name	= "early",
28	.write	= early_console_write,
29	.flags	= CON_PRINTBUFFER | CON_BOOT,
30	.index	= -1
31};
32
33static int early_console_initialized __initdata;
34
35void __init setup_early_printk(void)
36{
37	if (early_console_initialized)
38		return;
39	early_console_initialized = 1;
40
41	register_console(&early_console);
42}
43