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d634f194 RW |
1 | /* |
2 | * Copyright (C) 2011 Richard Weinberger <richrd@nod.at> | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License version 2 as | |
6 | * published by the Free Software Foundation. | |
7 | */ | |
8 | ||
9 | #include <linux/kernel.h> | |
10 | #include <linux/console.h> | |
11 | #include <linux/init.h> | |
37185b33 | 12 | #include <os.h> |
d634f194 RW |
13 | |
14 | static void early_console_write(struct console *con, const char *s, unsigned int n) | |
15 | { | |
16 | um_early_printk(s, n); | |
17 | } | |
18 | ||
d0380e6c | 19 | static struct console early_console_dev = { |
d634f194 RW |
20 | .name = "earlycon", |
21 | .write = early_console_write, | |
22 | .flags = CON_BOOT, | |
23 | .index = -1, | |
24 | }; | |
25 | ||
26 | static int __init setup_early_printk(char *buf) | |
27 | { | |
d0380e6c TG |
28 | if (!early_console) { |
29 | early_console = &early_console_dev; | |
30 | register_console(&early_console_dev); | |
31 | } | |
d634f194 RW |
32 | return 0; |
33 | } | |
34 | ||
35 | early_param("earlyprintk", setup_early_printk); |