ARM: dts: stm32: Add stm32mp235f-dk-u-boot

Add U-Boot specific file for stm32mp235f-dk board

Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>

arch/arm/dts/stm32mp23-u-boot.dtsi

@@ -0,0 +1,104 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR BSD-3-Clause
+/*
+ * Copyright : STMicroelectronics 2024
+ */
+
+/ {
+	aliases {
+		gpio0 = &gpioa;
+		gpio1 = &gpiob;
+		gpio2 = &gpioc;
+		gpio3 = &gpiod;
+		gpio4 = &gpioe;
+		gpio5 = &gpiof;
+		gpio6 = &gpiog;
+		gpio7 = &gpioh;
+		gpio8 = &gpioi;
+		gpio25 = &gpioz;
+		pinctrl0 = &pinctrl;
+		pinctrl1 = &pinctrl_z;
+	};
+
+	firmware {
+		optee {
+			bootph-all;
+		};
+
+		scmi {
+			bootph-all;
+		};
+	};
+
+	/* need PSCI for sysreset during board_f */
+	psci {
+		bootph-all;
+	};
+
+	soc@0 {
+		bootph-all;
+	};
+};
+
+&bsec {
+	bootph-all;
+};
+
+&gpioa {
+	bootph-all;
+};
+
+&gpiob {
+	bootph-all;
+};
+
+&gpioc {
+	bootph-all;
+};
+
+&gpiod {
+	bootph-all;
+};
+
+&gpioe {
+	bootph-all;
+};
+
+&gpiof {
+	bootph-all;
+};
+
+&gpiog {
+	bootph-all;
+};
+
+&gpioh {
+	bootph-all;
+};
+
+&gpioi {
+	bootph-all;
+};
+
+&gpioz {
+	bootph-all;
+};
+
+&pinctrl {
+	bootph-all;
+};
+
+&rcc {
+	bootph-all;
+};
+
+&rifsc {
+	bootph-all;
+};
+
+&scmi_clk {
+	bootph-all;
+};
+
+&syscfg {
+	bootph-all;
+};

arch/arm/dts/stm32mp235f-dk-u-boot.dtsi

@@ -0,0 +1,27 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR BSD-3-Clause
+/*
+ * Copyright (C) STMicroelectronics 2024 - All Rights Reserved
+ */
+
+#include "stm32mp23-u-boot.dtsi"
+
+/ {
+	config {
+		u-boot,boot-led = "led-blue";
+		u-boot,mmc-env-partition = "u-boot-env";
+	};
+};
+
+&usart2 {
+	bootph-all;
+};
+
+&usart2_pins_a {
+	bootph-all;
+	pins1 {
+		bootph-all;
+	};
+	pins2 {
+		bootph-all;
+	};
+};