projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 36a88530 RB |
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 ([email protected]) | |
| 7 | * Copyright (C) 2007 MIPS Technologies, Inc. | |
| 8 | * written by Ralf Baechle ([email protected]) | |
| 9 | */ | |
| 10 | #include <linux/console.h> | |
| 11 | #include <linux/init.h> | |
| 12 | ||
| 13 | extern void prom_putchar(char); | |
| 14 | ||
| ca4437d4 FBH |
15 | static void __init |
| 16 | early_console_write(struct console *con, const char *s, unsigned n) | |
| 36a88530 RB |
17 | { |
| 18 | while (n-- && *s) { | |
| 19 | if (*s == '\n') | |
| 20 | prom_putchar('\r'); | |
| 21 | prom_putchar(*s); | |
| 22 | s++; | |
| 23 | } | |
| 24 | } | |
| 25 | ||
| ca4437d4 | 26 | static struct console early_console __initdata = { |
| 36a88530 RB |
27 | .name = "early", |
| 28 | .write = early_console_write, | |
| 29 | .flags = CON_PRINTBUFFER | CON_BOOT, | |
| 30 | .index = -1 | |
| 31 | }; | |
| 32 | ||
| 36ea1d57 FBH |
33 | static int early_console_initialized __initdata; |
| 34 | ||
| 36a88530 RB |
35 | void __init setup_early_printk(void) |
| 36 | { | |
| 36ea1d57 FBH |
37 | if (early_console_initialized) |
| 38 | return; | |
| 39 | early_console_initialized = 1; | |
| 40 | ||
| 36a88530 RB |
41 | register_console(&early_console); |
| 42 | } |