pistachio: add gpio type definition

This is necessary to support generic gpio interface in src/lib. This
file will be later populated with more GPIO definitions.

BRANCH=none
BUG=chrome-os-partner:31438
TEST=none

Change-Id: I3fa93f1b3b1ce99d921bbfb378b3f7ae4eb652c2
Signed-off-by: Stefan Reinauer <reinauer@chromium.org>
Original-Commit-Id: 26f564ee10a770d57cb4af0a8ab5a264aaf1a7cd
Original-Change-Id: I68c9c3a28fcc747575436b502cb25b31afed8700
Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/226181
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/9184
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>

src/soc/imgtec/pistachio/include/soc/gpio.h

@@ -0,0 +1,25 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2014 Google 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; version 2 of the License.
+ *
+ * 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
+ */
+
+#ifndef __SOC_IMGTECH_PISTACHIO_GPIO_H__
+#define __SOC_IMGTECH_PISTACHIO_GPIO_H__
+
+typedef unsigned gpio_t;
+
+#endif // __SOC_IMGTECH_PISTACHIO_GPIO_H__