diff options
Diffstat (limited to 'arch/mips/kernel/early_printk.c')
-rw-r--r-- | arch/mips/kernel/early_printk.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/arch/mips/kernel/early_printk.c b/arch/mips/kernel/early_printk.c new file mode 100644 index 00000000..9ae813eb --- /dev/null +++ b/arch/mips/kernel/early_printk.c @@ -0,0 +1,44 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 2002, 2003, 06, 07 Ralf Baechle (ralf@linux-mips.org) + * Copyright (C) 2007 MIPS Technologies, Inc. + * written by Ralf Baechle (ralf@linux-mips.org) + */ +#include <linux/console.h> +#include <linux/init.h> + +#include <asm/setup.h> + +extern void prom_putchar(char); + +static void __init +early_console_write(struct console *con, const char *s, unsigned n) +{ + while (n-- && *s) { + if (*s == '\n') + prom_putchar('\r'); + prom_putchar(*s); + s++; + } +} + +static struct console early_console __initdata = { + .name = "early", + .write = early_console_write, + .flags = CON_PRINTBUFFER | CON_BOOT, + .index = -1 +}; + +static int early_console_initialized __initdata; + +void __init setup_early_printk(void) +{ + if (early_console_initialized) + return; + early_console_initialized = 1; + + register_console(&early_console); +} |