boards: nxp: frdm_ke15z: Add board support for ke15z

Added initial board support for the
frdm_ke15z board.

Signed-off-by: Emilio Benavente <emilio.benavente@nxp.com>
Signed-off-by: Pavel Krenek <pavel.krenek@nxp.com>

boards/nxp/frdm_ke15z/Kconfig.frdm_ke15z

@@ -0,0 +1,6 @@
+# Copyright 2024 NXP
+# SPDX-License-Identifier: Apache-2.0
+
+config BOARD_FRDM_KE15Z
+	select SOC_MKE15Z7
+	select SOC_PART_NUMBER_MKE15Z256VLL7

boards/nxp/frdm_ke15z/board.cmake

@@ -0,0 +1,11 @@
+#
+# Copyright 2024 NXP
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+board_runner_args(linkserver  "--device=MKE15Z256xxx7:FRDM-KE15Z")
+board_runner_args(jlink "--device=MKE15Z256xxx7" "--reset-after-load")
+
+include(${ZEPHYR_BASE}/boards/common/linkserver.board.cmake)
+include(${ZEPHYR_BASE}/boards/common/jlink.board.cmake)

boards/nxp/frdm_ke15z/board.yml

@@ -0,0 +1,5 @@
+board:
+  name: frdm_ke15z
+  vendor: nxp
+  socs:
+    - name: mke15z7

boards/nxp/frdm_ke15z/doc/index.rst

@@ -0,0 +1,187 @@
+.. _frdm_ke15z:
+
+NXP FRDM-KE15Z
+##############
+
+Overview
+********
+
+The FRDM-KE15Z is a development board for NXP Kinetis KE1xZ 32-bit
+MCU-based platforms. The FRDM-KE15Z contains a robust TSI module
+with up to 50 channels which makes this board highly flexible
+for touch keys. Offers options for serial
+communication, flash programming, and run-control debugging.
+
+.. figure:: frdm_ke15z.webp
+   :align: center
+   :alt: FRDM-KE15Z
+
+Hardware
+********
+
+- MKE15Z256VLL7 MCU (up to 72 MHz, 256 KB flash memory, 32 KB RAM)
+- OpenSDA Debug Circuit with a virtual serial port
+- Touch electrodes in the self-capacitive mode
+- Compatible with FRDM-TOUCH, FRDM-MC-LVBLDC, and Arduino® boards
+- User Components such as Reset; RGB LED and two user buttons
+- 6-axis FXOS8700CQ digital accelerometer and magnetometer
+
+For more information about the KE1xZ SoC and the FRDM-KE15Z board, see
+these NXP reference documents:
+
+- `KE1XZ SOC Website`_
+- `FRDM-KE15Z Datasheet`_
+- `FRDM-KE15Z Reference Manual`_
+- `FRDM-KE15Z Website`_
+- `FRDM-KE15Z User Guide`_
+- `FRDM-KE15Z Schematics`_
+
+Supported Features
+==================
+
+The frdm_ke15z board configuration supports the following hardware
+features:
+
++-----------+------------+-------------------------------------+
+| Interface | Controller | Driver/Component                    |
++===========+============+=====================================+
+| NVIC      | on-chip    | nested vector interrupt controller  |
++-----------+------------+-------------------------------------+
+| SYSTICK   | on-chip    | systick                             |
++-----------+------------+-------------------------------------+
+| GPIO      | on-chip    | gpio                                |
++-----------+------------+-------------------------------------+
+| UART      | on-chip    | uart polling;                       |
+|           |            | uart interrupt                      |
++-----------+------------+-------------------------------------+
+
+The default configuration can be found in the defconfig file:
+:zephyr_file:`boards/nxp/frdm_ke15z/frdm_ke15z_defconfig`.
+
+Other hardware features are not currently supported by the port.
+
+System Clock
+============
+
+The KE15 SoC is configured to run at 48 MHz using the FIRC.
+
+Serial Port
+===========
+
+The KE15 SoC has three UARTs. UART1 is configured for the console.
+
+Programming and Debugging
+*************************
+
+Build and flash applications as usual (see :ref:`build_an_application` and
+:ref:`application_run` for more details).
+
+Configuring a Debug Probe
+=========================
+
+A debug probe is used for both flashing and debugging the board. This board is
+configured by default to use Linkserver.
+
+Early versions of this board have an outdated version of the OpenSDA bootloader
+and require an update. Please see the `DAPLink Bootloader Update`_ page for
+instructions to update from the CMSIS-DAP bootloader to the DAPLink bootloader.
+
+Option 1: Linkserver
+-------------------------------------------------------
+
+Install the :ref:`linkserver-debug-host-tools` and make sure they are in your
+search path.  LinkServer works with the default CMSIS-DAP firmware included in
+the on-board debugger.
+
+Linkserver is the default for this board, ``west flash`` and ``west debug`` will
+call the linkserver runner.
+
+Option 2: :ref:`opensda-jlink-onboard-debug-probe`
+--------------------------------------------------
+
+Install the :ref:`jlink-debug-host-tools` and make sure they are in your search
+path.
+
+Follow the instructions in :ref:`opensda-jlink-onboard-debug-probe` to program
+the `OpenSDA J-Link Firmware for FRDM-KE15Z`_.
+Use the ``-r jlink`` option with west to use the jlink runner.
+
+.. code-block:: console
+
+   west flash -r jlink
+
+Configuring a Console
+=====================
+
+Regardless of your choice in debug probe, we will use the OpenSDA
+microcontroller as a usb-to-serial adapter for the serial console.
+
+Connect a USB cable from your PC to J5.
+
+Use the following settings with your serial terminal of choice (minicom, putty,
+etc.):
+
+- Speed: 115200
+- Data: 8 bits
+- Parity: None
+- Stop bits: 1
+
+Flashing
+========
+
+Here is an example for the :ref:`hello_world` application.
+
+.. zephyr-app-commands::
+   :zephyr-app: samples/hello_world
+   :board: frdm_ke15z
+   :goals: flash
+
+Open a serial terminal, reset the board (press the SW1 button), and you should
+see the following message in the terminal:
+
+.. code-block:: console
+
+   *** Booting Zephyr OS build v3.6.0-3478-gb923667860b1 ***
+   Hello World! frdm_ke15z/mke15z7
+
+Debugging
+=========
+
+Here is an example for the :ref:`hello_world` application.
+
+.. zephyr-app-commands::
+   :zephyr-app: samples/hello_world
+   :board: frdm_ke15z
+   :goals: debug
+
+Open a serial terminal, step through the application in your debugger, and you
+should see the following message in the terminal:
+
+.. code-block:: console
+
+   ***** Booting Zephyr OS v3.6.0-xxx-gxxxxxxxxxxxx *****
+   Hello World! frdm_ke15z
+
+.. _KE1XZ SoC Website:
+   https://www.nxp.com/products/processors-and-microcontrollers/arm-microcontrollers/general-purpose-mcus/ke-series-arm-cortex-m4-m0-plus/ke1xz-arm-cortex-m0-plus-5v-main-stream-mcu-with-nxp-touch-and-can-control:KE1xZ
+
+.. _FRDM-KE15Z Datasheet:
+   https://www.nxp.com/docs/en/data-sheet/KE1xZP100M72SF0.pdf
+
+.. _FRDM-KE15Z Reference Manual:
+   https://www.nxp.com/webapp/Download?colCode=KE1XZP100M72SF0RM
+
+.. _FRDM-KE15Z Website:
+   https://www.nxp.com/design/design-center/development-boards-and-designs/general-purpose-mcus/freedom-development-platform-for-kinetis-ke1xmcus:FRDM-KE15Z
+
+.. _FRDM-KE15Z User Guide:
+   https://www.nxp.com/document/guide/get-started-with-the-frdm-ke15z:NGS-FRDM-KE15Z
+
+.. _FRDM-KE15Z Schematics:
+   https://www.nxp.com/webapp/Download?colCode=FRDM-KE15Z-SCH-DESIGNFILES
+
+.. _DAPLink Bootloader Update:
+   https://os.mbed.com/blog/entry/DAPLink-bootloader-update/
+
+.. _OpenSDA J-Link Firmware for FRDM-KE15Z:
+   https://www.segger.com/downloads/jlink/OpenSDA_FRDM-KE15Z

boards/nxp/frdm_ke15z/frdm_ke15z-pinctrl.dtsi

@@ -0,0 +1,17 @@
+/*
+ * Copyright 2024 NXP
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <nxp/kinetis/MKE15Z256VLL7-pinctrl.h>
+
+&pinctrl {
+	lpuart1_default: lpuart1_default {
+		group0 {
+			pinmux = <LPUART1_RX_PTC6>,
+				<LPUART1_TX_PTC7>;
+			drive-strength = "low";
+			slew-rate = "slow";
+		};
+	};
+};

boards/nxp/frdm_ke15z/frdm_ke15z.dts

@@ -0,0 +1,76 @@
+/*
+ * Copyright 2024 NXP
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/dts-v1/;
+
+#include <nxp/nxp_ke1xz.dtsi>
+#include "frdm_ke15z-pinctrl.dtsi"
+#include <zephyr/dt-bindings/input/input-event-codes.h>
+
+/ {
+	model = "NXP Freedom KE15Z board";
+	compatible = "nxp,ke15z", "nxp,mke15z7";
+
+	aliases {
+		led0 = &green_led;
+		led1 = &blue_led;
+		led2 = &red_led;
+		sw0 = &user_button_0;
+		sw1 = &user_button_1;
+	};
+
+	chosen {
+		zephyr,sram = &sram_u;
+		zephyr,flash = &flash0;
+		zephyr,console = &lpuart1;
+		zephyr,shell-uart = &lpuart1;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		red_led: led_0 {
+			gpios = <&gpiod 0 GPIO_ACTIVE_LOW>;
+			label = "RED LED";
+		};
+		green_led: led_1 {
+			gpios = <&gpiod 16 GPIO_ACTIVE_LOW>;
+			label = "GREEN LED";
+		};
+		blue_led: led_2 {
+			gpios = <&gpiod 15 GPIO_ACTIVE_LOW>;
+			label = "BLUE LED";
+		};
+	};
+
+	gpio_keys {
+		compatible = "gpio-keys";
+		user_button_0: button_0 {
+			label = "User SW3";
+			gpios = <&gpiod 3 GPIO_ACTIVE_LOW>;
+			zephyr,code = <INPUT_KEY_0>;
+		};
+		user_button_1: button_1 {
+			label = "User SW2";
+			gpios = <&gpiob 11 GPIO_ACTIVE_LOW>;
+			zephyr,code = <INPUT_KEY_1>;
+		};
+	};
+};
+
+&lpuart1 {
+	status = "okay";
+	current-speed = <115200>;
+	pinctrl-0 = <&lpuart1_default>;
+	pinctrl-names = "default";
+};
+
+&gpiob {
+	status = "okay";
+};
+
+&gpiod {
+	status = "okay";
+};

boards/nxp/frdm_ke15z/frdm_ke15z.yaml

@@ -0,0 +1,13 @@
+identifier: frdm_ke15z
+name: NXP FRDM-KE15Z
+type: mcu
+arch: arm
+toolchain:
+  - zephyr
+  - gnuarmemb
+  - xtools
+flash: 256
+ram: 24
+supported:
+  - gpio
+  - uart

boards/nxp/frdm_ke15z/frdm_ke15z_defconfig

@@ -0,0 +1,17 @@
+# SPDX-License-Identifier: Apache-2.0
+
+CONFIG_SERIAL=y
+CONFIG_UART_INTERRUPT_DRIVEN=y
+
+# Enable console
+CONFIG_CONSOLE=y
+CONFIG_UART_CONSOLE=y
+
+# GPIO Controller
+CONFIG_GPIO=y
+
+# Clock Control
+CONFIG_CLOCK_CONTROL=y
+
+# Enable pin controller
+CONFIG_PINCTRL=y