superio/fintek/f81865f: Avoid .c includes

We should not be #include .c files, instead link early_serial into
romstage and provide a prototype.

Change-Id: Ia9277169ce1592e1fc72f8849f0982741daec567
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/5416
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Tested-by: build bot (Jenkins)

1 files changed, 48 insertions, 0 deletions

diff --git a/src/superio/fintek/f81865f/early_serial.c b/src/superio/fintek/f81865f/early_serial.c
new file mode 100644
index 0000000000..29b5f9d658
--- /dev/null
+++ b/src/superio/fintek/f81865f/early_serial.c
@@ -0,0 +1,48 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2011 Advanced Micro Devices, Inc.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/* Pre-RAM driver for the Fintek F81865F/FG Super I/O chip. */
+
+#include <arch/io.h>
+#include <device/pnp.h>
+#include "f81865f.h"
+
+static void pnp_enter_conf_state(device_t dev)
+{
+	u16 port = dev >> 8;
+	outb(0x87, port);
+	outb(0x87, port);
+}
+
+static void pnp_exit_conf_state(device_t dev)
+{
+	u16 port = dev >> 8;
+	outb(0xaa, port);
+}
+
+void f81865f_enable_serial(device_t dev, u16 iobase)
+{
+	pnp_enter_conf_state(dev);
+	pnp_set_logical_device(dev);
+	pnp_set_enable(dev, 0);
+	pnp_set_iobase(dev, PNP_IDX_IO0, iobase);
+	pnp_set_enable(dev, 1);
+	pnp_exit_conf_state(dev);
+}