superio/nsc: Introduce common early_serial

Change-Id: I0860e95258b87f059a3a9c31e382d758403d0428
Signed-off-by: Peter Lemenkov <lemenkov@gmail.com>
Reviewed-on: https://review.coreboot.org/c/31332
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>

1 files changed, 31 insertions, 0 deletions

diff --git a/src/superio/nsc/common/early_serial.c b/src/superio/nsc/common/early_serial.c
new file mode 100644
index 0000000000..2cd9f050cf
--- /dev/null
+++ b/src/superio/nsc/common/early_serial.c
@@ -0,0 +1,31 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2000 AG Electronics Ltd.
+ * Copyright (C) 2003-2004 Linux Networx
+ * Copyright (C) 2004 Tyan
+ * Copyright (C) 2007 Uwe Hermann <uwe@hermann-uwe.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <arch/io.h>
+#include <device/pnp_def.h>
+#include <stdint.h>
+#include "nsc.h"
+
+void nsc_enable_serial(pnp_devfn_t dev, u16 iobase)
+{
+	pnp_set_logical_device(dev);
+	pnp_set_enable(dev, 0);
+	pnp_set_iobase(dev, PNP_IDX_IO0, iobase);
+	pnp_set_enable(dev, 1);
+}