Merge pull request #5951 from mali/uno_saul

boards/arduino-common: export led via saul

boards/arduino-common/Makefile.dep

+ifneq (,$(filter saul_default,$(USEMODULE)))
+  USEMODULE += saul_gpio
+endif

boards/arduino-common/Makefile.include

 # define the cpu used by the arduino uno and duemilanove boards
 export CPU = atmega328p
 
+# include optional dependencies
+include $(RIOTBOARD)/arduino-common/Makefile.dep
+
 # define port used to flash the board
 OS = $(shell uname)
 ifeq ($(OS),Linux)

boards/arduino-common/include/gpio_params.h

+/*
+ * Copyright (C) 2016 Freie Universität Berlin
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser
+ * General Public License v2.1. See the file LICENSE in the top level
+ * directory for more details.
+ */
+
+/**
+ * @ingroup   boards_arduino-common
+ * @{
+ *
+ * @file
+ * @brief     Board specific configuration of direct mapped GPIOs
+ *
+ * @author    Hauke Petersen <hauke.petersen@fu-berlin.de>
+ */
+
+#ifndef GPIO_PARAMS_H
+#define GPIO_PARAMS_H
+
+#include "board.h"
+#include "saul/periph.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @brief   LED configuration
+ */
+static const  saul_gpio_params_t saul_gpio_params[] =
+{
+    {
+        .name = "LED",
+        .pin = LED0_PIN,
+        .mode = GPIO_OUT
+    }
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* GPIO_PARAMS_H */
+/** @} */