diff options
Diffstat (limited to 'arch/sh/kernel/early_printk.c')
-rw-r--r-- | arch/sh/kernel/early_printk.c | 85 |
1 files changed, 0 insertions, 85 deletions
diff --git a/arch/sh/kernel/early_printk.c b/arch/sh/kernel/early_printk.c deleted file mode 100644 index f8bb50c6e050..000000000000 --- a/arch/sh/kernel/early_printk.c +++ /dev/null | |||
@@ -1,85 +0,0 @@ | |||
1 | /* | ||
2 | * arch/sh/kernel/early_printk.c | ||
3 | * | ||
4 | * Copyright (C) 1999, 2000 Niibe Yutaka | ||
5 | * Copyright (C) 2002 M. R. Brown | ||
6 | * Copyright (C) 2004 - 2007 Paul Mundt | ||
7 | * | ||
8 | * This file is subject to the terms and conditions of the GNU General Public | ||
9 | * License. See the file "COPYING" in the main directory of this archive | ||
10 | * for more details. | ||
11 | */ | ||
12 | #include <linux/console.h> | ||
13 | #include <linux/tty.h> | ||
14 | #include <linux/init.h> | ||
15 | #include <linux/io.h> | ||
16 | #include <linux/delay.h> | ||
17 | |||
18 | #include <asm/sh_bios.h> | ||
19 | |||
20 | /* | ||
21 | * Print a string through the BIOS | ||
22 | */ | ||
23 | static void sh_console_write(struct console *co, const char *s, | ||
24 | unsigned count) | ||
25 | { | ||
26 | sh_bios_console_write(s, count); | ||
27 | } | ||
28 | |||
29 | /* | ||
30 | * Setup initial baud/bits/parity. We do two things here: | ||
31 | * - construct a cflag setting for the first rs_open() | ||
32 | * - initialize the serial port | ||
33 | * Return non-zero if we didn't find a serial port. | ||
34 | */ | ||
35 | static int __init sh_console_setup(struct console *co, char *options) | ||
36 | { | ||
37 | int cflag = CREAD | HUPCL | CLOCAL; | ||
38 | |||
39 | /* | ||
40 | * Now construct a cflag setting. | ||
41 | * TODO: this is a totally bogus cflag, as we have | ||
42 | * no idea what serial settings the BIOS is using, or | ||
43 | * even if its using the serial port at all. | ||
44 | */ | ||
45 | cflag |= B115200 | CS8 | /*no parity*/0; | ||
46 | |||
47 | co->cflag = cflag; | ||
48 | |||
49 | return 0; | ||
50 | } | ||
51 | |||
52 | static struct console bios_console = { | ||
53 | .name = "bios", | ||
54 | .write = sh_console_write, | ||
55 | .setup = sh_console_setup, | ||
56 | .flags = CON_PRINTBUFFER, | ||
57 | .index = -1, | ||
58 | }; | ||
59 | |||
60 | static struct console *early_console; | ||
61 | |||
62 | static int __init setup_early_printk(char *buf) | ||
63 | { | ||
64 | int keep_early = 0; | ||
65 | |||
66 | if (!buf) | ||
67 | return 0; | ||
68 | |||
69 | if (strstr(buf, "keep")) | ||
70 | keep_early = 1; | ||
71 | |||
72 | if (!strncmp(buf, "bios", 4)) | ||
73 | early_console = &bios_console; | ||
74 | |||
75 | if (likely(early_console)) { | ||
76 | if (keep_early) | ||
77 | early_console->flags &= ~CON_BOOT; | ||
78 | else | ||
79 | early_console->flags |= CON_BOOT; | ||
80 | register_console(early_console); | ||
81 | } | ||
82 | |||
83 | return 0; | ||
84 | } | ||
85 | early_param("earlyprintk", setup_early_printk); | ||