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boards: kws: Add support for KWS Pico-SPE Boards
Add support for KWS Pico-SPE based on Raspberry Pi RP2040 Add support for KWS Pico2-SPE based on Raspberry Pi RP2350 Signed-off-by: Frank Bintakies <fbintakies@kws-computer.de>
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‎boards/kws/common/pico_spe-pinctrl-common.dtsi

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/*
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* Copyright (c) 2025 KWS Computersysteme Gmbh
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* SPDX-License-Identifier: Apache-2.0
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*/
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&pinctrl {
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uart0_default: uart0_default {
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group1 {
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pinmux = <UART0_TX_P0>;
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};
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group2 {
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pinmux = <UART0_RX_P1>;
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input-enable;
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};
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};
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i2c0_default: i2c0_default {
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group1 {
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pinmux = <I2C0_SDA_P4>, <I2C0_SCL_P5>;
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input-enable;
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input-schmitt-enable;
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};
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};
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i2c1_default: i2c1_default {
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group1 {
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pinmux = <I2C1_SDA_P6>, <I2C1_SCL_P7>;
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input-enable;
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input-schmitt-enable;
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};
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};
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spi0_default: spi0_default {
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group1 {
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pinmux = <SPI0_CSN_P17>, <SPI0_SCK_P18>, <SPI0_TX_P19>;
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};
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group2 {
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pinmux = <SPI0_RX_P16>;
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input-enable;
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};
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};
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spi1_default: spi1_default {
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group1 {
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pinmux = <SPI1_CSN_P13>, <SPI1_SCK_P10>, <SPI1_TX_P11>;
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};
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group2 {
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pinmux = <SPI1_RX_P12>;
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input-enable;
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};
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};
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pwm_ch4b_default: pwm_ch4b_default {
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group1 {
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pinmux = <PWM_4B_P25>;
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};
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};
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adc_default: adc_default {
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group1 {
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pinmux = <ADC_CH0_P26>, <ADC_CH1_P27>, <ADC_CH2_P28>, <ADC_CH3_P29>;
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input-enable;
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};
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};
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};

‎boards/kws/index.rst

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.. _boards-kws:
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KWS Computersysteme Gmbh
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########################
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.. toctree::
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:maxdepth: 1
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:glob:
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**/*

‎boards/kws/pico2_spe/Kconfig.defconfig

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# Copyright (c) 2025 KWS Computersysteme Gmbh
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# SPDX-License-Identifier: Apache-2.0
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if BOARD_PICO2_SPE
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if I2C_DW
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config I2C_DW_CLOCK_SPEED
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default 125
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endif # I2C_DW
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config USB_SELF_POWERED
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default n
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config PHY_INIT_PRIORITY
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default 82
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depends on NET_L2_ETHERNET && ETH_DRIVER
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if NETWORKING
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config NET_L2_ETHERNET
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default y
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if ETH_LAN865X
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config NET_IF_MAX_IPV4_COUNT
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default 2
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endif # ETH_LAN865X
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endif # NETWORKING
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endif # BOARD_PICO2_SPE

‎boards/kws/pico2_spe/Kconfig.pico2_spe

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# Copyright (c) 2025 KWS Computersysteme Gmbh
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# SPDX-License-Identifier: Apache-2.0
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config BOARD_PICO2_SPE
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select SOC_RP2350A_M33 if BOARD_PICO2_SPE_RP2350A_M33

‎boards/kws/pico2_spe/board.cmake

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# SPDX-License-Identifier: Apache-2.0
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if("${RPI_PICO_DEBUG_ADAPTER}" STREQUAL "")
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set(RPI_PICO_DEBUG_ADAPTER "cmsis-dap")
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endif()
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board_runner_args(openocd --cmd-pre-init "source [find interface/${RPI_PICO_DEBUG_ADAPTER}.cfg]")
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board_runner_args(openocd --cmd-pre-init "source [find target/rp2350.cfg]")
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# The adapter speed is expected to be set by interface configuration.
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# The Raspberry Pi's OpenOCD fork doesn't, so match their documentation at
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# https://www.raspberrypi.com/documentation/microcontrollers/debug-probe.html#debugging-with-swd
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board_runner_args(openocd --cmd-pre-init "set_adapter_speed_if_not_set 5000")
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board_runner_args(uf2 "--board-id=RP2350")
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include(${ZEPHYR_BASE}/boards/common/openocd.board.cmake)
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include(${ZEPHYR_BASE}/boards/common/uf2.board.cmake)

‎boards/kws/pico2_spe/board.yml

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board:
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name: pico2_spe
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full_name: Pico2-SPE
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vendor: kws
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socs:
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- name: rp2350a

‎boards/kws/pico2_spe/doc/img/pico2_spe.webp

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‎boards/kws/pico2_spe/doc/index.rst

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.. zephyr:board:: pico2_spe
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Overview
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********
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The Pico2-SPE is a small, low-cost, versatile boards from
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KWS Computersysteme Gmbh. They are equipped with an RP2350a SoC, an on-board LED,
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a USB connector, an SWD interface. The Pico2-SPE additionally contains an
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Microchip LAN8651 10Base-T1S module. The USB bootloader allows the
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ability to flash without any adapter, in a drag-and-drop manner.
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It is also possible to flash and debug the boards with their SWD interface,
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using an external adapter.
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Hardware
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********
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- Dual Cortex-M33 or Hazard3 processors at up to 150MHz
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- 520KB of SRAM, and 4MB of on-board flash memory
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- USB 1.1 with device and host support
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- Low-power sleep and dormant modes
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- Drag-and-drop programming using mass storage over USB
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- 26 multi-function GPIO pins including 3 that can be used for ADC
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- 1 SPI, 2 I2C, 2 UART, 3 12-bit 500ksps Analogue to Digital - Converter (ADC), 24 controllable PWM channels
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- 2 Timer with 4 alarms, 1 AON Timer
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- Temperature sensor
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- Microchip LAN8651 10Base-T1S
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- 3 Programmable IO (PIO) blocks, 12 state machines total for custom peripheral support
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- Flexible, user-programmable high-speed IO
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- Can emulate interfaces such as SD Card and VGA
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Supported Features
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==================
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.. zephyr:board-supported-hw::
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Connections and IOs
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===================
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The default pin mapping is unchanged from the Pico-SPE.
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Programming and Debugging
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*************************
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As with the Pico-SPE, the SWD interface can be used to program and debug the
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device, e.g. using OpenOCD with the `Raspberry Pi Debug Probe <https://www.raspberrypi.com/documentation/microcontrollers/debug-probe.html>`_ .
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References
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**********
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.. _Getting Started with Pico-SPE-Series:
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https://kws-computer.de/go/pico-spe-getting-started
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.. _Pico2-SPE Documentation:
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https://kws-computer.de/go/pico2-spe-datasheet
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.. target-notes::

‎boards/kws/pico2_spe/pico2_spe-pinctrl.dtsi

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/*
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* Copyright (c) 2025 KWS Computersysteme Gmbh
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr/dt-bindings/pinctrl/rpi-pico-rp2350a-pinctrl.h>
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#include "../common/pico_spe-pinctrl-common.dtsi"

‎boards/kws/pico2_spe/pico2_spe.dtsi

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/*
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* Copyright (c) 2025 KWS Computersysteme Gmbh
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <freq.h>
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#include <zephyr/dt-bindings/i2c/i2c.h>
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#include <zephyr/dt-bindings/pwm/pwm.h>
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#include "pico2_spe-pinctrl.dtsi"
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/ {
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chosen {
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zephyr,sram = &sram0;
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zephyr,flash = &flash0;
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zephyr,console = &uart0;
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zephyr,shell-uart = &uart0;
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zephyr,code-partition = &code_partition;
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};
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aliases {
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watchdog0 = &wdt0;
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};
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pico_header: connector {
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compatible = "raspberrypi,pico-header";
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#gpio-cells = <2>;
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gpio-map-mask = <0xffffffff 0xffffffc0>;
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gpio-map-pass-thru = <0 0x3f>;
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gpio-map = <0 0 &gpio0 0 0>, /* GP0 */
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<1 0 &gpio0 1 0>, /* GP1 */
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<2 0 &gpio0 2 0>, /* GP2 */
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<3 0 &gpio0 3 0>, /* GP3 */
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<4 0 &gpio0 4 0>, /* GP4 */
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<5 0 &gpio0 5 0>, /* GP5 */
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<6 0 &gpio0 6 0>, /* GP6 */
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<7 0 &gpio0 7 0>, /* GP7 */
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<8 0 &gpio0 8 0>, /* GP8 */
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<9 0 &gpio0 9 0>, /* GP9 */
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<10 0 &gpio0 10 0>, /* GP10 */
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<11 0 &gpio0 11 0>, /* GP11 */
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<12 0 &gpio0 12 0>, /* GP12 */
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<13 0 &gpio0 13 0>, /* GP13 */
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<14 0 &gpio0 14 0>, /* GP14 */
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<15 0 &gpio0 15 0>, /* GP15 */
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<16 0 &gpio0 16 0>, /* GP16 */
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<17 0 &gpio0 17 0>, /* GP17 */
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<18 0 &gpio0 18 0>, /* GP18 */
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<19 0 &gpio0 19 0>, /* GP19 */
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<20 0 &gpio0 20 0>, /* GP20 */
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<21 0 &gpio0 21 0>, /* GP21 */
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<22 0 &gpio0 22 0>, /* GP22 */
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<26 0 &gpio0 26 0>, /* GP26 */
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<27 0 &gpio0 27 0>, /* GP27 */
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<28 0 &gpio0 28 0>; /* GP28 */
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};
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};
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&flash0 {
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reg = <0x10000000 DT_SIZE_M(4)>;
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partitions {
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compatible = "fixed-partitions";
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#address-cells = <1>;
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#size-cells = <1>;
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/* Reserved memory for an image definition block. The block is much
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* smaller than 256 bytes, but in practice the linker places the vector
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* table at a much larger alignment offset.
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*/
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image_def: partition@0 {
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label = "image_def";
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reg = <0x00000000 0x100>;
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read-only;
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};
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/*
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* Usable flash. Starts at 0x100, after the image definition block.
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* The partition size is 4MB minus the 0x100 bytes taken by the
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* image definition.
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*/
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code_partition: partition@100 {
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label = "code-partition";
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reg = <0x100 (DT_SIZE_M(4) - 0x100)>;
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read-only;
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};
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};
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};
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&uart0 {
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current-speed = <115200>;
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status = "okay";
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pinctrl-0 = <&uart0_default>;
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pinctrl-names = "default";
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};
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&gpio0 {
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status = "okay";
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};
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&spi1 {
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clock-frequency = <DT_FREQ_M(25)>;
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status = "okay";
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pinctrl-0 = <&spi1_default>;
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pinctrl-names = "default";
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cs-gpios = <&pico_header 13 GPIO_ACTIVE_LOW>;
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lan8651: lan865x@0 {
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compatible = "microchip,lan865x";
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reg = <0x0>;
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spi-max-frequency = <DT_FREQ_M(25)>;
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int-gpios = <&gpio0 21 (GPIO_ACTIVE_LOW)>;
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rst-gpios = <&gpio0 20 GPIO_ACTIVE_LOW>;
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status = "okay";
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local-mac-address = [ CA 2F B7 10 23 79];
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lan865x_mdio: lan865x_mdio {
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compatible = "microchip,lan865x-mdio";
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status = "okay";
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#address-cells = <1>;
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#size-cells = <0>;
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ethernet-phy@0 {
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compatible = "microchip,t1s-phy";
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reg = <0x0>;
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plca-enable;
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plca-node-id = <0>;
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plca-node-count = <8>;
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plca-burst-count = <0>;
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plca-burst-timer = <0x80>;
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plca-to-timer = <0x20>;
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status = "okay";
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};
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};
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};
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};
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&i2c0 {
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clock-frequency = <I2C_BITRATE_STANDARD>;
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pinctrl-0 = <&i2c0_default>;
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pinctrl-names = "default";
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status = "okay";
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};
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&i2c1 {
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clock-frequency = <I2C_BITRATE_STANDARD>;
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pinctrl-0 = <&i2c1_default>;
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pinctrl-names = "default";
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status = "okay";
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};
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&adc {
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pinctrl-0 = <&adc_default>;
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pinctrl-names = "default";
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status = "okay";
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};
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&pwm {
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pinctrl-0 = <&pwm_ch4b_default>;
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pinctrl-names = "default";
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divider-int-0 = <255>;
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};
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&timer0 {
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status = "okay";
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};
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zephyr_udc0: &usbd {
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status = "okay";
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};
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pico_serial: &uart0 {};

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