linux-kernel - [PATCH v1 6/6] arm64: dts: mediatek: mt7988a-bpi-r4pro: Add mmc overlays

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Message-ID: <20251027132817.212534-7-linux@fw-web.de>
Date: Mon, 27 Oct 2025 14:28:16 +0100
From: Frank Wunderlich <linux@...web.de>
To: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Linus Walleij <linus.walleij@...aro.org>,
	Matthias Brugger <matthias.bgg@...il.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
Cc: Frank Wunderlich <frank-w@...lic-files.de>,
	Sean Wang <sean.wang@...iatek.com>,
	Daniel Golle <daniel@...rotopia.org>,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-gpio@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org
Subject: [PATCH v1 6/6] arm64: dts: mediatek: mt7988a-bpi-r4pro: Add mmc overlays

From: Frank Wunderlich <frank-w@...lic-files.de>

Add MMC overlays for BPI-R4 Pro.

Signed-off-by: Frank Wunderlich <frank-w@...lic-files.de>
---
 arch/arm64/boot/dts/mediatek/Makefile         |  2 ++
 .../mt7988a-bananapi-bpi-r4-pro-emmc.dtso     | 33 +++++++++++++++++++
 .../mt7988a-bananapi-bpi-r4-pro-sd.dtso       | 31 +++++++++++++++++
 3 files changed, 66 insertions(+)
 create mode 100644 arch/arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4-pro-emmc.dtso
 create mode 100644 arch/arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4-pro-sd.dtso

diff --git a/arch/arm64/boot/dts/mediatek/Makefile b/arch/arm64/boot/dts/mediatek/Makefile
index 8e99f6e33b25..776b9274e8fa 100644
--- a/arch/arm64/boot/dts/mediatek/Makefile
+++ b/arch/arm64/boot/dts/mediatek/Makefile
@@ -28,6 +28,8 @@ dtb-$(CONFIG_ARCH_MEDIATEK) += mt7988a-bananapi-bpi-r4-pro-4e.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt7988a-bananapi-bpi-r4-pro-8x.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt7988a-bananapi-bpi-r4-pro-cn15.dtbo
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt7988a-bananapi-bpi-r4-pro-cn18.dtbo
+dtb-$(CONFIG_ARCH_MEDIATEK) += mt7988a-bananapi-bpi-r4-pro-emmc.dtbo
+dtb-$(CONFIG_ARCH_MEDIATEK) += mt7988a-bananapi-bpi-r4-pro-sd.dtbo
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt7988a-bananapi-bpi-r4-sd.dtbo
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt8167-pumpkin.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt8173-elm.dtb
diff --git a/arch/arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4-pro-emmc.dtso b/arch/arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4-pro-emmc.dtso
new file mode 100644
index 000000000000..5ed2f0a6bd66
--- /dev/null
+++ b/arch/arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4-pro-emmc.dtso
@@ -0,0 +1,33 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright (C) 2021 MediaTek Inc.
+ * Author: Frank Wunderlich <frank-w@...lic-files.de>
+ */
+
+/dts-v1/;
+/plugin/;
+
+/ {
+	compatible = "bananapi,bpi-r4-pro", "mediatek,mt7988a";
+};
+
+&{/soc/mmc@...30000} {
+	pinctrl-names = "default", "state_uhs";
+	pinctrl-0 = <&mmc0_pins_emmc_51>;
+	pinctrl-1 = <&mmc0_pins_emmc_51>;
+	bus-width = <8>;
+	max-frequency = <200000000>;
+	cap-mmc-highspeed;
+	mmc-hs200-1_8v;
+	mmc-hs400-1_8v;
+	hs400-ds-delay = <0x12814>;
+	vqmmc-supply = <&reg_1p8v>;
+	vmmc-supply = <&reg_3p3v>;
+	non-removable;
+	no-sd;
+	no-sdio;
+	#address-cells = <1>;
+	#size-cells = <0>;
+	status = "okay";
+};
+
diff --git a/arch/arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4-pro-sd.dtso b/arch/arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4-pro-sd.dtso
new file mode 100644
index 000000000000..1ec1a9fbd8ba
--- /dev/null
+++ b/arch/arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4-pro-sd.dtso
@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright (C) 2023 MediaTek Inc.
+ * Author: Frank Wunderlich <frank-w@...lic-files.de>
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+	compatible = "bananapi,bpi-r4-pro", "mediatek,mt7988a";
+};
+
+&{/soc/mmc@...30000} {
+	pinctrl-names = "default", "state_uhs";
+	pinctrl-0 = <&mmc0_pins_sdcard>;
+	pinctrl-1 = <&mmc0_pins_sdcard>;
+	cd-gpios = <&pio 12 GPIO_ACTIVE_LOW>;
+	bus-width = <4>;
+	max-frequency = <48000000>;
+	cap-sd-highspeed;
+	vmmc-supply = <&reg_3p3v>;
+	vqmmc-supply = <&reg_3p3v>;
+	no-mmc;
+	#address-cells = <1>;
+	#size-cells = <0>;
+	status = "okay";
+};
+
-- 
2.43.0