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boards: Add support for PG23 Pro Kit and PG28 Pro Kit
add xg23_pk2504a and xg28_pk2506a Silab board Signed-off-by: Christoph Jans <[email protected]>
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‎boards/silabs/dev_kits/xg23_pk2504a/Kconfig.defconfig

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# Copyright (c) 2025 Christoph Jans
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# SPDX-License-Identifier: Apache-2.0
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if BOARD_XG23_PK2504A
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config LOG_BACKEND_SWO_FREQ_HZ
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default 875000
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depends on LOG_BACKEND_SWO
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if SOC_GECKO_USE_RAIL
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config FPU
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default y
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endif # SOC_GECKO_USE_RAIL
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endif # BOARD_XG23_PK2504A

‎boards/silabs/dev_kits/xg23_pk2504a/Kconfig.xg23_pk2504a

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# Copyright (c) 2025 Christoph Jans
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# SPDX-License-Identifier: Apache-2.0
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config BOARD_XG23_PK2504A
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select SOC_PART_NUMBER_EFM32PG23B310F512IM48

‎boards/silabs/dev_kits/xg23_pk2504a/board.cmake

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# SPDX-License-Identifier: Apache-2.0
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board_runner_args(jlink "--device=EFM32PG23BxxxF512")
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include(${ZEPHYR_BASE}/boards/common/jlink.board.cmake)
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board_runner_args(openocd)
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include(${ZEPHYR_BASE}/boards/common/openocd.board.cmake)
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board_runner_args(silabs_commander "--device=EFM32PG23BxxxF512")
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include(${ZEPHYR_BASE}/boards/common/silabs_commander.board.cmake)

‎boards/silabs/dev_kits/xg23_pk2504a/board.yml

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board:
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name: xg23_pk2504a
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full_name: PG28 Pro Kit PK2504A Rev. A03
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vendor: silabs
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socs:
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- name: efm32pg23b310f512im48

‎boards/silabs/dev_kits/xg23_pk2504a/pre_dt_board.cmake

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# Copyright (c) 2021 Linaro Limited
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# SPDX-License-Identifier: Apache-2.0
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# SPI is implemented via usart so node name isn't spi@...
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list(APPEND EXTRA_DTC_FLAGS "-Wno-spi_bus_bridge")

‎boards/silabs/dev_kits/xg23_pk2504a/xg23_pk2504a-pinctrl.dtsi

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/*
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* Copyright (c) 2025 Christoph Jans
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <dt-bindings/pinctrl/silabs/xg23-pinctrl.h>
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&pinctrl {
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eusart0_default: eusart0_default {
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group0 {
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pins = <EUSART0_TX_PB5>;
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drive-push-pull;
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output-high;
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};
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group1 {
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pins = <EUSART0_RX_PB6>;
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input-enable;
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silabs,input-filter;
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};
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};
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eusart1_default: eusart1_default {
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group0 {
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pins = <EUSART1_TX_PC1>; //<EUSART1_TX_PB5>;
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drive-push-pull;
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output-high;
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};
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group1 {
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pins = <EUSART1_RX_PC2>; //<EUSART1_RX_PB6>;
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input-enable;
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silabs,input-filter;
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};
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};
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i2c0_default: i2c0_default {
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group0 {
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pins = <I2C0_SCL_PA8>, <I2C0_SDA_PA7>;
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drive-open-drain;
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bias-pull-up;
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};
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};
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};

‎boards/silabs/dev_kits/xg23_pk2504a/xg23_pk2504a.dts

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/*
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* Copyright (c) 2025 Christoph Jans
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/dts-v1/;
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#include <silabs/xg23/efm32pg23b310f512im48.dtsi>
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#include <zephyr/dt-bindings/input/input-event-codes.h>
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#include <zephyr/dt-bindings/regulator/silabs_dcdc.h>
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#include "xg23_pk2504a-pinctrl.dtsi"
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/ {
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model = "Silicon Labs PG23 Pro Kit";
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compatible = "silabs,xg23_pk2504a", "silabs,efm32pg23";
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chosen {
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zephyr,console = &eusart0;
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zephyr,shell-uart = &eusart0;
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zephyr,uart-pipe = &eusart0;
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zephyr,sram = &sram0;
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zephyr,flash = &flash0;
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zephyr,code-partition = &slot0_partition;
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};
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aliases {
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led0 = &led0;
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led1 = &led1;
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sw0 = &button0;
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sw1 = &button1;
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watchdog0 = &wdog0;
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dht0 = &si7021;
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};
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leds {
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compatible = "gpio-leds";
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led0: led_0 {
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gpios = <&gpioc 8 GPIO_ACTIVE_HIGH>;
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label = "LED 0";
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};
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led1: led_1 {
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gpios = <&gpioc 9 GPIO_ACTIVE_HIGH>;
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label = "LED 1";
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};
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};
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buttons {
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compatible = "gpio-keys";
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button0: button_0 {
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gpios = <&gpioa 5 GPIO_ACTIVE_LOW>;
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label = "User Push Button 0";
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zephyr,code = <INPUT_KEY_0>;
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};
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button1: button_1 {
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gpios = <&gpiob 4 GPIO_ACTIVE_LOW>;
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label = "User Push Button 1";
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zephyr,code = <INPUT_KEY_1>;
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};
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};
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};
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&cpu0 {
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clock-frequency = <78000000>;
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};
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&pstate_em3 {
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status = "disabled";
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};
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&hfxo {
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status = "okay";
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ctune = <106>;
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precision = <50>;
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};
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&lfxo {
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status = "okay";
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ctune = <38>;
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precision = <50>;
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};
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&hfrcodpll {
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clock-frequency = <DT_FREQ_M(78)>;
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clocks = <&hfxo>;
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dpll-n = <3839>;
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dpll-m = <1919>;
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dpll-edge = "fall";
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dpll-lock = "phase";
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dpll-autorecover;
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};
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&em23grpaclk {
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clocks = <&lfxo>;
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};
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&em4grpaclk {
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clocks = <&lfxo>;
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};
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&sysrtcclk {
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clocks = <&lfxo>;
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};
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&wdog0clk {
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clocks = <&lfxo>;
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};
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&wdog1clk {
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clocks = <&lfxo>;
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};
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&eusart0 {
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compatible = "silabs,eusart-uart";
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current-speed = <115200>;
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pinctrl-0 = <&eusart0_default>;
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pinctrl-names = "default";
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status = "okay";
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};
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&eusart1 {
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compatible = "silabs,eusart-uart";
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current-speed = <115200>;
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pinctrl-0 = <&eusart1_default>;
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pinctrl-names = "default";
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status = "disabled";
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};
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&i2c0 {
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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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si7021: si7021@40 {
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compatible = "silabs,si7006";
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reg = <0x40>;
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status = "okay";
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};
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};
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&gpio {
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status = "okay";
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};
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&gpioa {
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status = "okay";
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};
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&gpiob {
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status = "okay";
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// VCOM Isolation. Set PB1 to HIGH to enable VCOM_{RX,TX}.
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board-controller-enable {
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gpio-hog;
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gpios = <1 GPIO_ACTIVE_HIGH>;
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output-high;
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};
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};
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&gpioc {
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status = "okay";
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};
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&gpiod {
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status = "okay";
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};
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&wdog0 {
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status = "okay";
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};
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&sysrtc0 {
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status = "okay";
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};
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&se {
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status = "okay";
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};
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&dcdc {
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status = "okay";
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regulator-boot-on;
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regulator-initial-mode = <SILABS_DCDC_MODE_BUCK>;
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silabs,pfmx-peak-current-milliamp = <80>;
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};
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&flash0 {
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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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/* Reserve 48 kB for the bootloader */
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boot_partition: partition@0 {
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label = "mcuboot";
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reg = <0x0 DT_SIZE_K(48)>;
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read-only;
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};
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/* Reserve 208 kB for the application in slot 0 */
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slot0_partition: partition@c000 {
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label = "image-0";
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reg = <0x0000c000 DT_SIZE_K(208)>;
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};
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/* Reserve 208 kB for the application in slot 1 */
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slot1_partition: partition@40000 {
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label = "image-1";
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reg = <0x00040000 DT_SIZE_K(208)>;
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};
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/* Reserve 32 kB for the scratch partition */
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scratch_partition: partition@74000 {
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label = "image-scratch";
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reg = <0x00074000 DT_SIZE_K(32)>;
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};
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};
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};

‎boards/silabs/dev_kits/xg23_pk2504a/xg23_pk2504a.yaml

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identifier: xg23_pk2504a
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name: PG23 Pro Kit PK2504A Rev. A03
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type: mcu
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arch: arm
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ram: 64
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flash: 512
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toolchain:
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- zephyr
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- gnuarmemb
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supported:
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- clock_control
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- counter
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- entropy
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- flash
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- gpio
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- i2c
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- led
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- pinctrl
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- spi
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- uart
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- dma
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- watchdog
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- comparator
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testing:
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ignore_tags:
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- pm
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vendor: silabs

‎boards/silabs/dev_kits/xg23_pk2504a/xg23_pk2504a_defconfig

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# SPDX-License-Identifier: Apache-2.0
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CONFIG_ARM_MPU=y
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CONFIG_CONSOLE=y
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CONFIG_UART_CONSOLE=y
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CONFIG_SERIAL=y
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CONFIG_GPIO=y
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CONFIG_HW_STACK_PROTECTION=y
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CONFIG_REGULATOR=y
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CONFIG_SOC_GECKO_EMU_DCDC=y
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CONFIG_SOC_GECKO_EMU_DCDC_MODE_ON=y

‎boards/silabs/dev_kits/xg28_pk2506a/Kconfig.defconfig

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# Copyright (c) 2025 Christoph Jans
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# SPDX-License-Identifier: Apache-2.0
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if BOARD_XG28_PK2506A
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config LOG_BACKEND_SWO_FREQ_HZ
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default 875000
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depends on LOG_BACKEND_SWO
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if SOC_GECKO_USE_RAIL
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config FPU
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default y
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endif # SOC_GECKO_USE_RAIL
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endif # BOARD_XG28_PK2506A

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