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authorRalf Baechle <ralf@linux-mips.org>2007-03-01 11:56:43 +0000
committerRalf Baechle <ralf@linux-mips.org>2007-03-04 19:02:37 +0000
commit36a885306fdf7bb557c773309c993bfb2d0d693c (patch)
tree643b246c90653c9451ff7fecff74a79c3de8042c /arch/mips/kernel/early_printk.c
parentca471c86043f4a8b01cba02ba2d3431fddcaf606 (diff)
downloadop-kernel-dev-36a885306fdf7bb557c773309c993bfb2d0d693c.zip
op-kernel-dev-36a885306fdf7bb557c773309c993bfb2d0d693c.tar.gz
[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>
Diffstat (limited to 'arch/mips/kernel/early_printk.c')
-rw-r--r--arch/mips/kernel/early_printk.c40
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 0000000..304efdc
--- /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);
+}
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