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https://github.com/torvalds/linux
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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
/*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 2002, 2003, 06, 07 Ralf Baechle (ralf@linux-mips.org)
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* Copyright (C) 2007 MIPS Technologies, Inc.
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* written by Ralf Baechle (ralf@linux-mips.org)
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*/
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#include <linux/console.h>
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#include <linux/init.h>
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#include <asm/setup.h>
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extern void prom_putchar(char);
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static void early_console_write(struct console *con, const char *s, unsigned n)
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{
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while (n-- && *s) {
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if (*s == '\n')
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prom_putchar('\r');
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prom_putchar(*s);
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s++;
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}
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}
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static struct console early_console = {
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.name = "early",
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.write = early_console_write,
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.flags = CON_PRINTBUFFER | CON_BOOT,
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.index = -1
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};
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static int early_console_initialized __initdata;
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void __init setup_early_printk(void)
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{
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if (early_console_initialized)
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return;
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early_console_initialized = 1;
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register_console(&early_console);
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}
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