phyboard-wega: Added platform support for phyBOARD-Wega

Like the beaglebone, the phyBOARD-Wega also got an am335x.
So I merged the four mmap-functions for gpio_context and some
identical defines in a separate header and c-file.
The new platform support-files are based on beaglebone-files.

The documentation of phyBOARD-Wega is still in process,
but for now there are enough informations.
At this time it is possible to use GPIO-Pins and Uart0
(tested via python with mraa). The code for using SPI, I2C and
PWM is also still in process and not tested yet.

Signed-off-by: Norbert Wesp <nwesp@phytec.de>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>

include/arm/am335x.h

@@ -0,0 +1,86 @@
+/*
+ * Author: Norbert Wesp <nwesp@phytec.de>
+ * Author: Stefan Müller-Klieser <S.Mueller-Klieser@phytec.de>
+ * Copyright (c) 2016 Phytec Messtechnik GmbH.
+ *
+ * Based on src/arm/beaglebone.c
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#pragma once
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdlib.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <mraa/types.h>
+
+#include "common.h"
+
+#define SYSFS_CLASS_PWM "/sys/class/pwm/"
+#define SYSFS_CLASS_MMC "/sys/class/mmc_host/"
+
+#define MMAP_PATH "/dev/mem"
+#define MAX_SIZE 64
+
+#define AM335X_GPIO0_BASE 0x44e07000
+#define AM335X_GPIO1_BASE 0x4804c000
+#define AM335X_GPIO2_BASE 0x481AC000
+#define AM335X_GPIO3_BASE 0x481AE000
+#define AM335X_GPIO_SIZE (4 * 1024)
+#define AM335X_IN 0x138
+#define AM335X_CLR 0x190
+#define AM335X_SET 0x194
+
+/**
+ * Writes 'value' to gpio_context 'dev'
+ *
+ * @return mraa_result_t indicating success of actions.
+ */
+mraa_result_t mraa_am335x_mmap_write(mraa_gpio_context dev, int value);
+
+/**
+ * Unsetup register of mmap_gpio[]
+ *
+ * @return static mraa_result_t indicating success of actions.
+ */
+static mraa_result_t mraa_am335x_mmap_unsetup();
+
+/**
+ * Read from gpio_context 'dev'
+ *
+ * @return int result indicating success of actions.
+ */
+int mraa_am335x_mmap_read(mraa_gpio_context dev);
+
+/**
+ * Disables gpio_context 'dev' in case of 'en' or mmap'ing gpio_context 'dev'
+ *
+ * @return mraa_result_t indicating success of actions.
+ */
+mraa_result_t mraa_am335x_mmap_setup(mraa_gpio_context dev, mraa_boolean_t en);
+
+#ifdef __cplusplus
+}
+#endif

include/arm/phyboard.h

@@ -0,0 +1,42 @@
+/*
+ * Author: Norbert Wesp <nwesp@phytec.de>
+ * Author: Stefan Müller-Klieser <S.Mueller-Klieser@phytec.de>
+ * Copyright (c) 2016 Phytec Messtechnik GmbH.
+ *
+ * Based on include/arm/beaglebone.h
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#pragma once
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "mraa_internal.h"
+
+#define MRAA_PHYBOARD_WEGA_PINCOUNT 117
+
+mraa_board_t * mraa_phyboard();
+
+#ifdef __cplusplus
+}
+#endif