zephyrproject-rtos · mgalda82 · Jul 18, 2025 · Aug 22, 2025 · Sep 17, 2025
diff --git a/boards/nxp/frdm_ke16z/Kconfig.frdm_ke16z b/boards/nxp/frdm_ke16z/Kconfig.frdm_ke16z
@@ -0,0 +1,6 @@
+# Copyright 2024 NXP
+# SPDX-License-Identifier: Apache-2.0
+
+config BOARD_FRDM_KE16Z
+	select SOC_MKE16Z4
+	select SOC_PART_NUMBER_MKE16Z64VLF4
diff --git a/boards/nxp/frdm_ke16z/board.cmake b/boards/nxp/frdm_ke16z/board.cmake
@@ -0,0 +1,11 @@
+#
+# Copyright 2024 NXP
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+board_runner_args(linkserver  "--device=MKE16Z64xxx4:FRDM-KE16Z")
+board_runner_args(jlink "--device=MKE16Z64xxx4" "--reset-after-load")
+
+include(${ZEPHYR_BASE}/boards/common/linkserver.board.cmake)
+include(${ZEPHYR_BASE}/boards/common/jlink.board.cmake)
diff --git a/boards/nxp/frdm_ke16z/board.yml b/boards/nxp/frdm_ke16z/board.yml
@@ -0,0 +1,6 @@
+board:
+  name: frdm_ke16z
+  full_name: FRDM-KE16Z
+  vendor: nxp
+  socs:
+    - name: mke16z4
diff --git a/boards/nxp/frdm_ke16z/doc/frdm_ke16z.jpg b/boards/nxp/frdm_ke16z/doc/frdm_ke16z.jpg
diff --git a/boards/nxp/frdm_ke16z/doc/index.rst b/boards/nxp/frdm_ke16z/doc/index.rst
@@ -0,0 +1,163 @@
+.. zephyr:board:: frdm_ke16z
+
+Overview
+********
+
+The FRDM-KE16Z is a development board for NXP Kinetis KE1xZ 32-bit
+MCU-based platforms. The FRDM-KE16Z contains a robust TSI module
+with up to 25 channels which makes this board highly flexible
+for touch keys. Offers options for serial
+communication, flash programming, and run-control debugging.
+
+Hardware
+********
+
+- MKE16Z64VLF4 MCU (up to 48 MHz, 64 KB flash memory, 8 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-KE16Z board, see
+these NXP reference documents:
+
+- `KE1XZ SOC Website`_
+- `FRDM-KE16Z Datasheet`_
+- `FRDM-KE16Z Reference Manual`_
+- `FRDM-KE16Z Website`_
+- `FRDM-KE16Z User Guide`_
+- `FRDM-KE16Z Schematics`_
+
+Supported Features
+==================
+
+.. zephyr:board-supported-hw::
+
+System Clock
+============
+
+The KE16 SoC is configured to run at 48 MHz using the FIRC.
+
+Serial Port
+===========
+
+The KE16 SoC has three UARTs. UART0 (PTB1, PTB0) is configured for the console.
+
+Programming and Debugging
+*************************
+
+.. zephyr:board-supported-runners::
+
+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 J6.
+
+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 :zephyr:code-sample:`hello_world` application.
+
+.. zephyr-app-commands::
+   :zephyr-app: samples/hello_world
+   :board: frdm_ke16z
+   :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_ke16z/mke16z4
+
+Debugging
+=========
+
+Here is an example for the :zephyr:code-sample:`hello_world` application.
+
+.. zephyr-app-commands::
+   :zephyr-app: samples/hello_world
+   :board: frdm_ke16z
+   :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_ke16z
+
+.. include:: ../../common/board-footer.rst
+   :start-after: nxp-board-footer
+
+.. _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-KE16Z Datasheet:
+   https://www.nxp.com/docs/en/data-sheet/KE1xZP48M48SF0.pdf
+
+.. _FRDM-KE16Z Reference Manual:
+   https://www.nxp.com/docs/en/reference-manual/KE1xZP48M48SF0RM.pdf
+
+.. _FRDM-KE16Z Website:
+   https://www.nxp.com/design/design-center/development-boards-and-designs/general-purpose-mcus/freedom-development-platform-for-kinetis-ke1xmcus:FRDM-KE16Z
+
+.. _FRDM-KE16Z User Guide:
+   https://www.nxp.com/document/guide/get-started-with-the-frdm-ke16z:NGS-FRDM-KE16Z
+
+.. _FRDM-KE16Z Schematics:
+   https://www.nxp.com/downloads/en/schematics/FRDM-KE16ZSCH.zip
+
+.. _DAPLink Bootloader Update:
+   https://os.mbed.com/blog/entry/DAPLink-bootloader-update/
diff --git a/boards/nxp/frdm_ke16z/frdm_ke16z-pinctrl.dtsi b/boards/nxp/frdm_ke16z/frdm_ke16z-pinctrl.dtsi
@@ -0,0 +1,17 @@
+/*
+ * Copyright 2024 NXP
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <nxp/kinetis/MKE16Z64VLF4-pinctrl.h>
+
+&pinctrl {
+	lpuart0_default: lpuart0_default {
+		group0 {
+			pinmux = <LPUART0_RX_PTB0>,
+				<LPUART0_TX_PTB1>;
+			drive-strength = "low";
+			slew-rate = "slow";
+		};
+	};
+};
diff --git a/boards/nxp/frdm_ke16z/frdm_ke16z.dts b/boards/nxp/frdm_ke16z/frdm_ke16z.dts
@@ -0,0 +1,76 @@
+/*
+ * Copyright 2024 NXP
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/dts-v1/;
+
+#include <nxp/nxp_ke1xz64.dtsi>
+#include "frdm_ke16z-pinctrl.dtsi"
+#include <zephyr/dt-bindings/input/input-event-codes.h>
+
+/ {
+	model = "NXP Freedom KE16Z board";
+	compatible = "nxp,ke16z", "nxp,mke16z4";
+
+	aliases {
+		led0 = &red_led;
+		led1 = &green_led;
+		led2 = &blue_led;
+		sw0 = &user_button_0;
+		sw1 = &user_button_1;
+	};
+
+	chosen {
+		zephyr,sram = &sram_u;
+		zephyr,flash = &flash0;
+		zephyr,console = &lpuart0;
+		zephyr,shell-uart = &lpuart0;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		red_led: led_0 {
+			gpios = <&gpiob 5 GPIO_ACTIVE_LOW>;
+			label = "RED LED";
+		};
+		green_led: led_1 {
+			gpios = <&gpiob 4 GPIO_ACTIVE_LOW>;
+			label = "GREEN LED";
+		};
+		blue_led: led_2 {
+			gpios = <&gpiod 1 GPIO_ACTIVE_LOW>;
+			label = "BLUE LED";
+		};
+	};
+
+	gpio_keys {
+		compatible = "gpio-keys";
+		user_button_0: button_0 {
+			label = "User SW2";
+			gpios = <&gpiod 3 GPIO_ACTIVE_LOW>;
+			zephyr,code = <INPUT_KEY_0>;
+		};
+		user_button_1: button_1 {
+			label = "User SW3";
+			gpios = <&gpiod 2 GPIO_ACTIVE_LOW>;
+			zephyr,code = <INPUT_KEY_1>;
+		};
+	};
+};
+
+&lpuart0 {
+	status = "okay";
+	current-speed = <115200>;
+	pinctrl-0 = <&lpuart0_default>;
+	pinctrl-names = "default";
+};
+
+&gpiob {
+	status = "okay";
+};
+
+&gpiod {
+	status = "okay";
+};
diff --git a/boards/nxp/frdm_ke16z/frdm_ke16z.yaml b/boards/nxp/frdm_ke16z/frdm_ke16z.yaml
@@ -0,0 +1,13 @@
+identifier: frdm_ke16z
+name: NXP FRDM-KE16Z
+type: mcu
+arch: arm
+toolchain:
+  - zephyr
+  - gnuarmemb
+flash: 64
+ram: 8
+supported:
+  - flash
+  - gpio
+  - uart
diff --git a/boards/nxp/frdm_ke16z/frdm_ke16z_defconfig b/boards/nxp/frdm_ke16z/frdm_ke16z_defconfig
@@ -0,0 +1,14 @@
+# 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
diff --git a/boards/nxp/frdm_ke17z512/frdm_ke17z512.dts b/boards/nxp/frdm_ke17z512/frdm_ke17z512.dts
@@ -116,7 +116,7 @@
 
 &scg {
 	bus_clk {
-		clock-div = <2>;
+		clock-div = <4>;
 	};
 };
 

diff --git a/drivers/clock_control/clock_control_mcux_scg.c b/drivers/clock_control/clock_control_mcux_scg.c
@@ -46,7 +46,8 @@ static int mcux_scg_get_rate(const struct device *dev,
 	case KINETIS_SCG_BUS_CLK:
 		clock_name = kCLOCK_BusClk;
 		break;
-#if !(defined(CONFIG_SOC_MKE17Z7) || defined(CONFIG_SOC_MKE17Z9))
+#if !(defined(CONFIG_SOC_MKE17Z7) || defined(CONFIG_SOC_MKE17Z9) || defined(CONFIG_SOC_MKE15Z7)\
+	|| defined(CONFIG_SOC_MKE15Z4) || defined(CONFIG_SOC_MKE16Z4))
 	case KINETIS_SCG_FLEXBUS_CLK:
 		clock_name = kCLOCK_FlexBusClk;
 		break;
@@ -69,7 +70,7 @@ static int mcux_scg_get_rate(const struct device *dev,
 		break;
 #endif /* (defined(FSL_FEATURE_SCG_HAS_SPLL) && FSL_FEATURE_SCG_HAS_SPLL) */
 #if (defined(FSL_FEATURE_SCG_HAS_LPFLL) && FSL_FEATURE_SCG_HAS_LPFLL)
-	case KINETIS_SCG_SPLL_CLK:
+	case KINETIS_SCG_LPFLL_CLK:
 		clock_name = kCLOCK_ScgLpFllClk;
 		break;
 #endif /* (defined(FSL_FEATURE_SCG_HAS_LPFLL) && FSL_FEATURE_SCG_HAS_LPFLL) */
@@ -136,6 +137,8 @@ static int mcux_scg_init(const struct device *dev)
 	CLOCK_SetClkOutSel(kClockClkoutSelFirc);
 #elif DT_SAME_NODE(DT_CLOCKS_CTLR(MCUX_SCG_CLOCK_NODE(clkout_clk)), MCUX_SCG_CLOCK_NODE(spll_clk))
 	CLOCK_SetClkOutSel(kClockClkoutSelSysPll);
+#elif DT_SAME_NODE(DT_CLOCKS_CTLR(MCUX_SCG_CLOCK_NODE(clkout_clk)), MCUX_SCG_CLOCK_NODE(lpfll_clk))
+	CLOCK_SetClkOutSel(kClockClkoutSelSysLpfll);
 #else
 #error Unsupported SCG clkout clock source
 #endif

diff --git a/dts/arm/nxp/nxp_ke17z.dtsi b/dts/arm/nxp/nxp_ke17z.dtsi
@@ -47,6 +47,14 @@
 			};
 		};
 
+		tsi1: tsi@40047000 {
+			compatible = "nxp,tsi";
+			reg = <0x40047000 0x1000>;
+			status = "okay";
+			interrupts = <25 0>;
+			clocks = <&scg KINETIS_SCG_BUS_CLK>;
+		};
+
 		/* Remove rtc, it doesn't exist on KE17Z */
 		/delete-node/ rtc@4003d000;
 	};

diff --git a/dts/arm/nxp/nxp_ke17z512.dtsi b/dts/arm/nxp/nxp_ke17z512.dtsi
@@ -1,5 +1,5 @@
 /*
- * Copyright 2024 NXP
+ * Copyright 2024-2025 NXP
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -61,5 +61,23 @@
 			clocks = <&scg KINETIS_SCG_BUS_CLK>;
 			status = "disabled";
 		};
+
+		scg@40064000 {
+			/delete-node/ lpfll_clk;
+
+			lpfll_clk: lpfll_clk {
+			compatible = "fixed-clock";
+			clock-frequency = <96000000>;
+			#clock-cells = <0>;
+			};
+		};
+
+		tsi1: tsi@40047000 {
+			compatible = "nxp,tsi";
+			reg = <0x40047000 0x1000>;
+			status = "okay";
+			interrupts = <25 0>;
+			clocks = <&scg KINETIS_SCG_BUS_CLK>;
+		};
 	};
 };
-Original file line number
+Diff line change
@@ Expand Up / @@ -116,7 +116,7 @@ @@
     &scg {
     	bus_clk {
-    		clock-div = <2>;
+    		clock-div = <4>;
     	};
     };
@@ Expand Down @@