forked from Minki/linux
f7be4e754b
We cannot use __init for earlyprintk code or data, since the kernel parameter "keep_bootcon" allows leaving the boot console enabled. Currently MIPS will crash/hang/die if you use keep_bootcon. The patch fixes it at least on Lemote FuLoong mini-PC. Changes for other boards were done based on what I could find with grep... Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> Patchwork: http://patchwork.linux-mips.org/patch/4935/ Signed-off-by: John Crispin <blogic@openwrt.org>
44 lines
982 B
C
44 lines
982 B
C
/*
|
|
* 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 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 = {
|
|
.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);
|
|
}
|