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// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
/*
* Copyright (C) STMicroelectronics 2025 - All Rights Reserved
* Author: Alexandre Torgue <alexandre.torgue@foss.st.com> for STMicroelectronics.
*/
/dts-v1/;
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
#include <dt-bindings/leds/common.h>
#include "stm32mp257.dtsi"
#include "stm32mp25xf.dtsi"
#include "stm32mp25-pinctrl.dtsi"
#include "stm32mp25xxak-pinctrl.dtsi"
/ {
model = "STMicroelectronics STM32MP257F-DK Discovery Board";
compatible = "st,stm32mp257f-dk", "st,stm32mp257";
aliases {
serial0 = &usart2;
};
chosen {
stdout-path = "serial0:115200n8";
};
gpio-keys {
compatible = "gpio-keys";
button-user-1 {
label = "User-1";
linux,code = <BTN_1>;
gpios = <&gpioc 5 GPIO_ACTIVE_HIGH>;
};
button-user-2 {
label = "User-2";
linux,code = <BTN_2>;
gpios = <&gpioc 11 GPIO_ACTIVE_HIGH>;
};
};
gpio-leds {
compatible = "gpio-leds";
led-blue {
function = LED_FUNCTION_HEARTBEAT;
color = <LED_COLOR_ID_BLUE>;
gpios = <&gpioh 7 GPIO_ACTIVE_HIGH>;
linux,default-trigger = "heartbeat";
default-state = "off";
};
};
memory@80000000 {
device_type = "memory";
reg = <0x0 0x80000000 0x1 0x0>;
};
reserved-memory {
#address-cells = <2>;
#size-cells = <2>;
ranges;
fw@80000000 {
compatible = "shared-dma-pool";
reg = <0x0 0x80000000 0x0 0x4000000>;
no-map;
};
};
};
&arm_wdt {
timeout-sec = <32>;
status = "okay";
};
&scmi_regu {
scmi_vddio1: regulator@0 {
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3300000>;
};
scmi_vdd_sdcard: regulator@23 {
reg = <VOLTD_SCMI_STPMIC2_LDO7>;
regulator-name = "vdd_sdcard";
};
};
&sdmmc1 {
pinctrl-names = "default", "opendrain", "sleep";
pinctrl-0 = <&sdmmc1_b4_pins_a>;
pinctrl-1 = <&sdmmc1_b4_od_pins_a>;
pinctrl-2 = <&sdmmc1_b4_sleep_pins_a>;
cd-gpios = <&gpiod 3 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
disable-wp;
st,neg-edge;
bus-width = <4>;
vmmc-supply = <&scmi_vdd_sdcard>;
vqmmc-supply = <&scmi_vddio1>;
status = "okay";
};
&usart2 {
pinctrl-names = "default", "idle", "sleep";
pinctrl-0 = <&usart2_pins_a>;
pinctrl-1 = <&usart2_idle_pins_a>;
pinctrl-2 = <&usart2_sleep_pins_a>;
/delete-property/dmas;
/delete-property/dma-names;
status = "okay";
};
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