arm64: dts: mediatek: Introduce MT8195 Cherry platform's Tomato

Introduce the MT8195 Cherry Chromebook platform, including three
revisions of Cherry Tomato boards.

This basic configuration allows to boot Linux on all board revisions
and get a serial console from a ramdisk.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220704101321.44835-3-angelogioacchino.delregno@collabora.comSigned-off-by: Matthias Brugger <matthias.bgg@gmail.com>

arch/arm64/boot/dts/mediatek/Makefile

@@ -40,6 +40,9 @@ dtb-$(CONFIG_ARCH_MEDIATEK) += mt8183-pumpkin.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt8192-asurada-hayato-r1.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt8192-asurada-spherion-r0.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt8192-evb.dtb
+dtb-$(CONFIG_ARCH_MEDIATEK) += mt8195-cherry-tomato-r1.dtb
+dtb-$(CONFIG_ARCH_MEDIATEK) += mt8195-cherry-tomato-r2.dtb
+dtb-$(CONFIG_ARCH_MEDIATEK) += mt8195-cherry-tomato-r3.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt8195-demo.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt8195-evb.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt8516-pumpkin.dtb

arch/arm64/boot/dts/mediatek/mt8195-cherry-tomato-r1.dts

+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright (C) 2021 MediaTek Inc.
+ */
+/dts-v1/;
+#include "mt8195-cherry.dtsi"
+
+/ {
+	model = "Acer Tomato (rev1) board";
+	compatible = "google,tomato-rev1", "google,tomato", "mediatek,mt8195";
+};

arch/arm64/boot/dts/mediatek/mt8195-cherry-tomato-r2.dts

+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright (C) 2021 MediaTek Inc.
+ */
+/dts-v1/;
+#include "mt8195-cherry.dtsi"
+
+/ {
+	model = "Acer Tomato (rev2) board";
+	compatible = "google,tomato-rev2", "google,tomato", "mediatek,mt8195";
+};

arch/arm64/boot/dts/mediatek/mt8195-cherry-tomato-r3.dts

+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright (C) 2021 MediaTek Inc.
+ */
+/dts-v1/;
+#include "mt8195-cherry.dtsi"
+
+/ {
+	model = "Acer Tomato (rev3 - 4) board";
+	compatible = "google,tomato-rev4", "google,tomato-rev3",
+		     "google,tomato", "mediatek,mt8195";
+};

arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi

+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright (C) 2021 MediaTek Inc.
+ */
+
+#include <dt-bindings/gpio/gpio.h>
+#include "mt8195.dtsi"
+
+/ {
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	memory@40000000 {
+		device_type = "memory";
+		reg = <0 0x40000000 0 0x80000000>;
+	};
+};
+
+&uart0 {
+	status = "okay";
+};