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-rw-r--r--arch/arm/boot/dts/stm32mp15xx-dhcom-picoitx.dtsi151
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diff --git a/arch/arm/boot/dts/stm32mp15xx-dhcom-picoitx.dtsi b/arch/arm/boot/dts/stm32mp15xx-dhcom-picoitx.dtsi
new file mode 100644
index 000000000..abc595350
--- /dev/null
+++ b/arch/arm/boot/dts/stm32mp15xx-dhcom-picoitx.dtsi
@@ -0,0 +1,151 @@
+// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
+/*
+ * Copyright (C) 2020 Marek Vasut <marex@denx.de>
+ */
+
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/pwm/pwm.h>
+
+/ {
+ aliases {
+ serial0 = &uart4;
+ serial1 = &usart3;
+ serial2 = &uart8;
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+
+ led {
+ compatible = "gpio-leds";
+
+ led-0 {
+ label = "yellow:led";
+ gpios = <&gpioi 3 GPIO_ACTIVE_HIGH>;
+ default-state = "off";
+ };
+ };
+};
+
+&adc {
+ status = "disabled";
+};
+
+&dac {
+ status = "disabled";
+};
+
+&fmc {
+ status = "disabled";
+};
+
+&gpioa {
+ /*
+ * NOTE: The USB Port on the PicoITX needs a PWR_EN signal to enable
+ * port power. This signal should be handled by USB power sequencing
+ * in order to turn on port power when USB bus is powered up, but so
+ * far there is no such functionality.
+ */
+ usb-port-power-hog {
+ gpio-hog;
+ gpios = <13 0>;
+ output-low;
+ line-name = "usb-port-power";
+ };
+};
+
+&gpioc {
+ gpio-line-names = "", "", "", "",
+ "", "", "PicoITX-In1", "",
+ "", "", "", "",
+ "", "", "", "";
+};
+
+&gpiod {
+ gpio-line-names = "", "", "", "",
+ "", "", "DHCOM-B", "",
+ "", "", "", "PicoITX-Out1",
+ "PicoITX-Out2", "", "", "";
+};
+
+&gpiog {
+ gpio-line-names = "PicoITX-In2", "", "", "",
+ "", "", "", "",
+ "DHCOM-L", "", "", "",
+ "", "", "", "";
+};
+
+&i2c2 { /* On board-to-board connector (optional) */
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c2_pins_a>;
+ i2c-scl-rising-time-ns = <185>;
+ i2c-scl-falling-time-ns = <20>;
+ status = "okay";
+ /* spare dmas for other usage */
+ /delete-property/dmas;
+ /delete-property/dma-names;
+};
+
+&i2c5 { /* On board-to-board connector */
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c5_pins_a>;
+ i2c-scl-rising-time-ns = <185>;
+ i2c-scl-falling-time-ns = <20>;
+ status = "okay";
+ /* spare dmas for other usage */
+ /delete-property/dmas;
+ /delete-property/dma-names;
+};
+
+&ksz8851 {
+ status = "disabled";
+};
+
+&usart3 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&usart3_pins_a>;
+ /delete-property/dmas;
+ /delete-property/dma-names;
+ status = "okay";
+};
+
+&uart8 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart8_pins_a &uart8_rtscts_pins_a>;
+ /delete-property/dmas;
+ /delete-property/dma-names;
+ status = "okay";
+};
+
+&usbh_ehci {
+ phys = <&usbphyc_port0>;
+ status = "okay";
+};
+
+&usbh_ohci {
+ phys = <&usbphyc_port0>;
+ status = "okay";
+};
+
+&usbotg_hs {
+ dr_mode = "otg";
+ pinctrl-0 = <&usbotg_hs_pins_a>;
+ pinctrl-names = "default";
+ phy-names = "usb2-phy";
+ phys = <&usbphyc_port1 0>;
+ vbus-supply = <&vbus_otg>;
+ status = "okay";
+};
+
+&usbphyc {
+ status = "okay";
+};
+
+&usbphyc_port0 {
+ phy-supply = <&vdd_usb>;
+};
+
+&usbphyc_port1 {
+ phy-supply = <&vdd_usb>;
+};