arch: arm: dts: tqma7x: add boot phase properties

Revert this commit once the upstream linux device trees are
synchronized.

Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Alexander Feilke <alexander.feilke@ew.tq-group.com>

arch/arm/dts/imx7s-mba7-u-boot.dtsi

@@ -7,7 +7,7 @@
  * Author: Steffen Doster
  */
 
-#include "imx7s-u-boot.dtsi"
+#include "imx7s-tqma7-u-boot.dtsi"
 
 / {
 	config {
@@ -21,7 +21,28 @@
 	};
 };
 
+&gpio4 {
+	/* Deassert BOOT_EN after boot to separate BOOT_CFG circuits from LCD signals */
+	boot-en-hog {
+		gpio-hog;
+		gpios = <3 GPIO_ACTIVE_LOW>;
+		output-low;
+	};
+};
+
 &wdog1 {
 	u-boot,noautostart;
 	timeout-sec = <60>;
 };
+
+&iomuxc {
+	bootph-pre-ram;
+};
+
+&pinctrl_uart6 {
+	bootph-pre-ram;
+};
+
+&uart6 {
+	bootph-pre-ram;
+};

arch/arm/dts/imx7s-tqma7-u-boot.dtsi

@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Device Tree Source for TQ-Systems TQMa7S module.
+ *
+ * Copyright (C) 2024-2026 TQ-Systems GmbH <u-boot@ew.tq-group.com>,
+ * D-82229 Seefeld, Germany
+ * Author: Steffen Doster
+ */
+
+#include "imx7s-u-boot.dtsi"
+
+&soc {
+	bootph-pre-ram;
+};
+
+&aips1 {
+	bootph-pre-ram;
+};
+
+&aips3 {
+	bootph-pre-ram;
+};