[MIPS] Fix and cleanup the mess that a dozen prom_printf variants are.

early_printk is a so much saner thing.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 40 insertions, 0 deletions

diff --git a/arch/mips/kernel/early_printk.c b/arch/mips/kernel/early_printk.c
new file mode 100644
index 000000000000..304efdc5682f
--- /dev/null
+++ b/arch/mips/kernel/early_printk.c
@@ -0,0 +1,40 @@
+/*
+ * 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>
+
+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
+};
+
+void __init setup_early_printk(void)
+{
+        register_console(&early_console);
+}
+
+void __init disable_early_printk(void)
+{
+        unregister_console(&early_console);
+}