arm64: dts: mediatek: add device tree for Tungsten 700 board

Add device tree to support Ezurio Tungsten 700 (MT8390) SMARC SOM [1] +
Universal SMARC carrier board [2].
It includes support for the MIPI-DSI BD070LIC3 display which uses the
Tianma TM070JDHG30 panel + TI SN65DSI84 MIPI-DSI to LVDS bridge [3].

[1] https://www.ezurio.com/product/tungsten700-smarc
[2] https://www.ezurio.com/system-on-module/accessories/universal-smarc-carrier
[3] https://www.ezurio.com/product/bd070lic3-7-touchscreen-display

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Gary Bisson <bisson.gary@gmail.com>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>

Author: gibsson

arch/arm64/boot/dts/mediatek/Makefile

@@ -164,6 +164,7 @@ dtb-$(CONFIG_ARCH_MEDIATEK) += mt8395-genio-1200-evk.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt8395-genio-1200-evk-ufs.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt8390-genio-700-evk.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt8390-grinn-genio-700-sbc.dtb
+dtb-$(CONFIG_ARCH_MEDIATEK) += mt8390-tungsten-smarc.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt8395-kontron-3-5-sbc-i1200.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt8395-radxa-nio-12l.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt8395-radxa-nio-12l-8-hd-panel.dtbo

arch/arm64/boot/dts/mediatek/mt8390-tungsten-smarc.dts

@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright (C) 2025 Ezurio LLC
+ * Author: Gary Bisson <bisson.gary@gmail.com>
+ */
+/dts-v1/;
+#include "mt8188.dtsi"
+#include "mt8390-tungsten-smarc.dtsi"
+
+/ {
+	model = "Ezurio Tungsten700 SMARC (MT8390)";
+	compatible = "ezurio,mt8390-tungsten-smarc", "mediatek,mt8390",
+		     "mediatek,mt8188";
+};
+
+&cpu4 {
+	cpu-supply = <&mt6359_vcore_buck_reg>;
+};
+
+&cpu5 {
+	cpu-supply = <&mt6359_vcore_buck_reg>;
+};