linux-kernel - [PATCH 11/11] ARM: dts: mediatek: add basic support for Lenovo A369i board

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Message-Id: <20250620-mt6572-v1-11-e2d47820f042@proton.me>
Date: Fri, 20 Jun 2025 18:40:50 +0300
From: Max Shevchenko via B4 Relay <devnull+wctrl.proton.me@...nel.org>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 Jiri Slaby <jirislaby@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Matthias Brugger <matthias.bgg@...il.com>, 
 AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>, 
 Thomas Gleixner <tglx@...utronix.de>, 
 Daniel Lezcano <daniel.lezcano@...aro.org>, 
 Wim Van Sebroeck <wim@...ux-watchdog.org>, 
 Guenter Roeck <linux@...ck-us.net>, Sean Wang <sean.wang@...iatek.com>, 
 Russell King <linux@...linux.org.uk>
Cc: linux-kernel@...r.kernel.org, linux-serial@...r.kernel.org, 
 devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 linux-mediatek@...ts.infradead.org, linux-watchdog@...r.kernel.org, 
 Max Shevchenko <wctrl@...ton.me>
Subject: [PATCH 11/11] ARM: dts: mediatek: add basic support for Lenovo
 A369i board

From: Max Shevchenko <wctrl@...ton.me>

This smartphone uses a MediaTek MT6572 system-on-chip with 512MB of RAM.
It can currently boot into initramfs with a working UART and
Simple Framebuffer using already initialized panel by the bootloader.

Signed-off-by: Max Shevchenko <wctrl@...ton.me>
---
 arch/arm/boot/dts/mediatek/Makefile                |  1 +
 arch/arm/boot/dts/mediatek/mt6572-lenovo-a369i.dts | 57 ++++++++++++++++++++++
 2 files changed, 58 insertions(+)

diff --git a/arch/arm/boot/dts/mediatek/Makefile b/arch/arm/boot/dts/mediatek/Makefile
index cb869a1aaec21a1d99f7f2a829b84672a3f52726..e48de3efeb3b9ab00108cc28afa8da525d0ec14a 100644
--- a/arch/arm/boot/dts/mediatek/Makefile
+++ b/arch/arm/boot/dts/mediatek/Makefile
@@ -2,6 +2,7 @@
 dtb-$(CONFIG_ARCH_MEDIATEK) += \
 	mt2701-evb.dtb \
 	mt6572-jty-d101.dtb \
+	mt6572-lenovo-a369i.dtb \
 	mt6580-evbp1.dtb \
 	mt6582-prestigio-pmt5008-3g.dtb \
 	mt6589-aquaris5.dtb \
diff --git a/arch/arm/boot/dts/mediatek/mt6572-lenovo-a369i.dts b/arch/arm/boot/dts/mediatek/mt6572-lenovo-a369i.dts
new file mode 100644
index 0000000000000000000000000000000000000000..da8865a6b7e4f0e346f42504b3f8a4db61cb240e
--- /dev/null
+++ b/arch/arm/boot/dts/mediatek/mt6572-lenovo-a369i.dts
@@ -0,0 +1,57 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2025 Max Shevchenko <wctrl@...ton.me>
+ */
+
+/dts-v1/;
+#include "mt6572.dtsi"
+
+/ {
+	model = "Lenovo A369i";
+	compatible = "lenovo,a369i", "mediatek,mt6572";
+
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		stdout-path = "serial0:921600n8";
+
+		framebuffer: framebuffer@...00000 {
+			compatible = "simple-framebuffer";
+			memory-region = <&framebuffer_reserved>;
+			width = <480>;
+			height = <800>;
+			stride = <(480 * 2)>;
+			format = "r5g6b5";
+			status = "okay";
+		};
+	};
+
+	memory {
+		device_type = "memory";
+		reg = <0x80000000 0x20000000>;
+	};
+
+	reserved-memory {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		connsys@...00000 {
+			reg = <0x80000000 0x100000>;
+			no-map;
+		};
+
+		framebuffer_reserved: framebuffer@...00000 {
+			reg = <0x9fa00000 0x600000>;
+			no-map;
+		};
+	};
+};
+
+&uart0 {
+	status = "okay";
+};

-- 
2.50.0