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- /*
- * 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) 2014 Finn Thain
- */
- #include <linux/kernel.h>
- #include <linux/console.h>
- #include <linux/init.h>
- #include <linux/string.h>
- #include <asm/setup.h>
- extern void mvme16x_cons_write(struct console *co,
- const char *str, unsigned count);
- asmlinkage void __init debug_cons_nputs(const char *s, unsigned n);
- static void __ref debug_cons_write(struct console *c,
- const char *s, unsigned n)
- {
- #if !(defined(CONFIG_SUN3) || defined(CONFIG_M68360) || \
- defined(CONFIG_M68000) || defined(CONFIG_COLDFIRE))
- if (MACH_IS_MVME16x)
- mvme16x_cons_write(c, s, n);
- else
- debug_cons_nputs(s, n);
- #endif
- }
- static struct console early_console_instance = {
- .name = "debug",
- .write = debug_cons_write,
- .flags = CON_PRINTBUFFER | CON_BOOT,
- .index = -1
- };
- static int __init setup_early_printk(char *buf)
- {
- if (early_console || buf)
- return 0;
- early_console = &early_console_instance;
- register_console(early_console);
- return 0;
- }
- early_param("earlyprintk", setup_early_printk);
- /*
- * debug_cons_nputs() defined in arch/m68k/kernel/head.S cannot be called
- * after init sections are discarded (for platforms that use it).
- */
- #if !(defined(CONFIG_SUN3) || defined(CONFIG_M68360) || \
- defined(CONFIG_M68000) || defined(CONFIG_COLDFIRE))
- static int __init unregister_early_console(void)
- {
- if (!early_console || MACH_IS_MVME16x)
- return 0;
- return unregister_console(early_console);
- }
- late_initcall(unregister_early_console);
- #endif
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