boards/arm: add support for colibri_imx7d_m4 board

The Colibri iMX7D Computer on Module with Colibri Evaluation Board
configuration supports the following hardware features on the Cortex M4
Core:

+-----------+------------+-------------------------------------+
| Interface | Controller | Driver/Component                    |
+===========+============+=====================================+
| NVIC      | on-chip    | nested vector interrupt controller  |
+-----------+------------+-------------------------------------+
| SYSTICK   | on-chip    | systick                             |
+-----------+------------+-------------------------------------+
| UART      | on-chip    | serial port-polling;                |
|           |            | serial port-interrupt               |
+-----------+------------+-------------------------------------+

The default configuration can be found in the defconfig file:
boards/arm/colibri_imx7d_m4/colibri_imx7d_m4_defconfig

Other hardware features are not currently supported by the port.

Connections and IOs:

The Colibri iMX7D Computer on Module with Colibri Evaluation Board
was tested with the following pinmux controller configuration.

+---------------+-----------------+---------------------------+
| Board Name    | SoC Name        | Usage                     |
+===============+=================+===========================+
| UART_B RXD    | UART2_TXD       | UART Console              |
+---------------+-----------------+---------------------------+
| UART_B TXD    | UART2_RXD       | UART Console              |
+---------------+-----------------+---------------------------+

Signed-off-by: Diego Sueiro <[email protected]>

Author: diegosueiro

boards/arm/colibri_imx7d_m4/CMakeLists.txt

@@ -0,0 +1,9 @@
+#
+# Copyright (c) 2017, NXP
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+zephyr_library()
+zephyr_library_include_directories(${PROJECT_SOURCE_DIR}/drivers)
+zephyr_library_sources(pinmux.c)

boards/arm/colibri_imx7d_m4/Kconfig.board

@@ -0,0 +1,11 @@
+# Kconfig - Colibri iMX7D M4 board
+#
+# Copyright (c) 2017, NXP
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+config BOARD_COLIBRI_IMX7D_M4
+	bool "Toradex Colibri iMX7 Dual"
+	depends on SOC_SERIES_IMX7_M4
+	select SOC_PART_NUMBER_MCIMX7D5EVM10SC

boards/arm/colibri_imx7d_m4/Kconfig.defconfig

@@ -0,0 +1,20 @@
+# Kconfig - Colibri iMX7D M4 board
+#
+# Copyright (c) 2017, NXP
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+if BOARD_COLIBRI_IMX7D_M4
+
+config BOARD
+	default colibri_imx7d_m4
+
+if UART_IMX
+
+config UART_IMX_UART_2
+	def_bool y
+
+endif # UART_IMX
+
+endif # BOARD_COLIBRI_IMX7D_M4

boards/arm/colibri_imx7d_m4/board.h

@@ -0,0 +1,12 @@
+/*
+ * Copyright (c) 2018, Diego Sueiro <[email protected]>
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#ifndef __INC_BOARD_H
+#define __INC_BOARD_H
+
+#include <soc.h>
+
+#endif /* __INC_BOARD_H */

boards/arm/colibri_imx7d_m4/colibri_imx7d_m4.dts

@@ -0,0 +1,33 @@
+/*
+ * Copyright (c) 2017, NXP
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/dts-v1/;
+
+#include <nxp/nxp_imx7d_m4.dtsi>
+
+/ {
+	model = "TORADEX Colibri IMX7D board";
+	compatible = "nxp,mcimx7d_m4";
+
+	aliases {
+		gpio_1= &gpio1;
+		uart_2 = &uart2;
+	};
+
+	chosen {
+#if defined(CONFIG_XIP)
+		zephyr,flash = &tcml_code;
+#endif
+		zephyr,sram = &tcmu_sys;
+		zephyr,console = &uart2;
+	};
+};
+
+&uart2 {
+	status = "ok";
+	current-speed = <115200>;
+	modem-mode = <1>;
+};

boards/arm/colibri_imx7d_m4/colibri_imx7d_m4.yaml

@@ -0,0 +1,19 @@
+#
+# Copyright (c) 2017, NXP
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+identifier: colibri_imx7d_m4
+name: TORADEX Colibri IMX7D
+type: mcu
+arch: arm
+ram: 32
+flash: 32
+toolchain:
+  - zephyr
+  - gccarmemb
+testing:
+  ignore_tags:
+    - net
+    - bluetooth

boards/arm/colibri_imx7d_m4/colibri_imx7d_m4_defconfig

@@ -0,0 +1,18 @@
+#
+# Copyright (c) 2017, NXP
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+CONFIG_ARM=y
+CONFIG_SOC_FAMILY_IMX=y
+CONFIG_SOC_SERIES_IMX7_M4=y
+CONFIG_SOC_MCIMX7_M4=y
+CONFIG_BOARD_COLIBRI_IMX7D_M4=y
+CONFIG_CORTEX_M_SYSTICK=y
+CONFIG_SERIAL_HAS_DRIVER=y
+CONFIG_UART_CONSOLE=y
+CONFIG_SERIAL=y
+CONFIG_CONSOLE=y
+CONFIG_CONSOLE_HAS_DRIVER=y
+CONFIG_XIP=y