[uboot] create uboot from github:

repo: https://github.com/u-boot/u-boot
	commit: d80bb749fab53da72c4a0e09b8c2d2aaa3103c91

Change-Id: Ie6434426e1ec15bc08bb1832798e371f3fd5fb29

u-boot-2021.10/arch/arm/dts/stm32mp15xx-dhcom-picoitx.dts

@@ -0,0 +1,93 @@
+// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
+/*
+ * Copyright (C) 2020 Marek Vasut <marex@denx.de>
+ */
+
+#include "stm32mp15xx-dhcom.dtsi"
+
+/ {
+	model = "DH Electronics STM32MP15xx DHCOM PicoITX";
+	compatible = "dh,stm32mp15xx-dhcom-picoitx", "st,stm32mp1xx";
+
+	aliases {
+		serial0 = &uart4;
+		serial1 = &usart3;
+		serial2 = &uart8;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+};
+
+&adc {
+	status = "disabled";
+};
+
+&dac {
+	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 {
+		gpio-hog;
+		gpios = <13 0>;
+		output-low;
+		line-name = "usb-port-power";
+	};
+};
+
+&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;
+};
+
+&usart3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&usart3_pins_a>;
+	status = "okay";
+};
+
+&uart8 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart8_pins_a>;
+	status = "okay";
+};
+
+&usbh_ehci {
+	phys = <&usbphyc_port0>;
+	status = "okay";
+};
+
+&usbphyc {
+	status = "okay";
+};
+
+&usbphyc_port0 {
+	phy-supply = <&vdd_usb>;
+	vdda1v1-supply = <&reg11>;
+	vdda1v8-supply = <&reg18>;
+};