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.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>

diff --git a/arch/arm64/boot/dts/mediatek/Makefile b/arch/arm64/boot/dts/mediatek/Makefile
index 4f2c258..af362a0 100644 (file)
--- a/arch/arm64/boot/dts/mediatek/Makefile
+++ b/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

diff --git a/arch/arm64/boot/dts/mediatek/mt8195-cherry-tomato-r1.dts b/arch/arm64/boot/dts/mediatek/mt8195-cherry-tomato-r1.dts
new file mode 100644 (file)
index 0000000..7ca344c
--- /dev/null
+++ b/arch/arm64/boot/dts/mediatek/mt8195-cherry-tomato-r1.dts
@@ -0,0 +1,11 @@
+// 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";
+};

diff --git a/arch/arm64/boot/dts/mediatek/mt8195-cherry-tomato-r2.dts b/arch/arm64/boot/dts/mediatek/mt8195-cherry-tomato-r2.dts
new file mode 100644 (file)
index 0000000..38c27d7
--- /dev/null
+++ b/arch/arm64/boot/dts/mediatek/mt8195-cherry-tomato-r2.dts
@@ -0,0 +1,11 @@
+// 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";
+};

diff --git a/arch/arm64/boot/dts/mediatek/mt8195-cherry-tomato-r3.dts b/arch/arm64/boot/dts/mediatek/mt8195-cherry-tomato-r3.dts
new file mode 100644 (file)
index 0000000..6ecde88
--- /dev/null
+++ b/arch/arm64/boot/dts/mediatek/mt8195-cherry-tomato-r3.dts
@@ -0,0 +1,12 @@
+// 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";
+};

diff --git a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
new file mode 100644 (file)
index 0000000..7406d7b
--- /dev/null
+++ b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
@@ -0,0 +1,26 @@
+// 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";
+};