linux-kernel - [PATCH v2 3/4] arm64: dts: mediatek: add device-tree for Genio 1200 EVK UFS board

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Message-ID: <20250722085811.2062790-3-macpaul.lin@mediatek.com>
Date: Tue, 22 Jul 2025 16:58:10 +0800
From: Macpaul Lin <macpaul.lin@...iatek.com>
To: 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>, Catalin Marinas
	<catalin.marinas@....com>, Will Deacon <will@...nel.org>, Sean Wang
	<sean.wang@...iatek.com>, <devicetree@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
	<linux-mediatek@...ts.infradead.org>
CC: Bear Wang <bear.wang@...iatek.com>, Pablo Sun <pablo.sun@...iatek.com>,
	Ramax Lo <ramax.lo@...iatek.com>, Macpaul Lin <macpaul.lin@...iatek.com>,
	Macpaul Lin <macpaul@...il.com>, MediaTek Chromebook Upstream
	<Project_Global_Chrome_Upstream_Group@...iatek.com>
Subject: [PATCH v2 3/4] arm64: dts: mediatek: add device-tree for Genio 1200 EVK UFS board

Add a basic device-tree (mt8395-genio-1200-evk-ufs.dts) in order to be able
to use UFS storage as the main storage on Genio 1200 EVK board.

This board is the origin Genio 1200 EVK already mounted two main storages,
one is eMMC, and the other is UFS. The system automatically prioritizes
between eMMC and UFS via BROM detection, so user could not use both storage
types simultaneously. As a result, mt8395-evk-ufs must be treated as a
separate board.

It use mt8395-genio-common.dtsi file to use common definitions.

Signed-off-by: Macpaul Lin <macpaul.lin@...iatek.com>
---
 arch/arm64/boot/dts/mediatek/Makefile         |  1 +
 .../mediatek/mt8395-genio-1200-evk-ufs.dts    | 29 +++++++++++++++++++
 2 files changed, 30 insertions(+)
 create mode 100644 arch/arm64/boot/dts/mediatek/mt8395-genio-1200-evk-ufs.dts

Changes for v2:
 - Move root node at the beginning of the dts file according to review
   suggestion. Thanks.

diff --git a/arch/arm64/boot/dts/mediatek/Makefile b/arch/arm64/boot/dts/mediatek/Makefile
index a4df4c21399e..86d568d57549 100644
--- a/arch/arm64/boot/dts/mediatek/Makefile
+++ b/arch/arm64/boot/dts/mediatek/Makefile
@@ -100,6 +100,7 @@ dtb-$(CONFIG_ARCH_MEDIATEK) += mt8195-evb.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt8365-evk.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt8370-genio-510-evk.dtb
 dtb-$(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-$(CONFIG_ARCH_MEDIATEK) += mt8395-kontron-3-5-sbc-i1200.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt8395-radxa-nio-12l.dtb
diff --git a/arch/arm64/boot/dts/mediatek/mt8395-genio-1200-evk-ufs.dts b/arch/arm64/boot/dts/mediatek/mt8395-genio-1200-evk-ufs.dts
new file mode 100644
index 000000000000..e09a3ecd8773
--- /dev/null
+++ b/arch/arm64/boot/dts/mediatek/mt8395-genio-1200-evk-ufs.dts
@@ -0,0 +1,29 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright (C) 2025 MediaTek Inc.
+ * Author: Ramax Lo <ramax.lo@...iatek.com>
+ *         Macpaul Lin <macpaul.lin@...iatek.com>
+ */
+/dts-v1/;
+
+#include "mt8395-genio-common.dtsi"
+
+/ {
+	model = "MediaTek Genio 1200 EVK-P1V2-UFS";
+	compatible = "mediatek,mt8395-evk-ufs", "mediatek,mt8395",
+		     "mediatek,mt8195";
+};
+
+&ufshci {
+	status = "okay";
+	vcc-supply = <&mt6359_vemc_1_ldo_reg>;
+	vccq2-supply = <&mt6359_vufs_ldo_reg>;
+};
+
+&ufsphy {
+	status = "okay";
+};
+
+&mmc0 {
+	status = "disabled";
+};
-- 
2.45.2