linux-kernel - [PATCH v3 5/7] arm64: dts: mediatek: cherry: Enable secondary SD/MMC controller

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Message-Id: <20220902081156.38526-6-angelogioacchino.delregno@collabora.com>
Date:   Fri,  2 Sep 2022 10:11:54 +0200
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     matthias.bgg@...il.com
Cc:     robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, wenst@...omium.org,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
Subject: [PATCH v3 5/7] arm64: dts: mediatek: cherry: Enable secondary SD/MMC controller

As of now, all of the boards based on the cherry platform have a
usable secondary SD/MMC controller, usually for SD cards: enable
it to allow both booting from it and generally accessing external
storage.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
---
 .../boot/dts/mediatek/mt8195-cherry.dtsi      | 45 +++++++++++++++++++
 1 file changed, 45 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
index 1174ab344e47..0654a28e6782 100644
--- a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
@@ -17,6 +17,7 @@ aliases {
 		i2c5 = &i2c5;
 		i2c7 = &i2c7;
 		mmc0 = &mmc0;
+		mmc1 = &mmc1;
 		serial0 = &uart0;
 	};
 
@@ -227,6 +228,24 @@ &mmc0 {
 	vqmmc-supply = <&mt6359_vufs_ldo_reg>;
 };
 
+&mmc1 {
+	status = "okay";
+
+	bus-width = <4>;
+	cap-sd-highspeed;
+	cd-gpios = <&pio 54 GPIO_ACTIVE_LOW>;
+	max-frequency = <200000000>;
+	no-mmc;
+	no-sdio;
+	pinctrl-names = "default", "state_uhs";
+	pinctrl-0 = <&mmc1_pins_default>, <&mmc1_pins_detect>;
+	pinctrl-1 = <&mmc1_pins_default>;
+	sd-uhs-sdr50;
+	sd-uhs-sdr104;
+	vmmc-supply = <&mt_pmic_vmch_ldo_reg>;
+	vqmmc-supply = <&mt_pmic_vmc_ldo_reg>;
+};
+
 /* for CPU-L */
 &mt6359_vcore_buck_reg {
 	regulator-always-on;
@@ -575,6 +594,32 @@ pins-rst {
 		};
 	};
 
+	mmc1_pins_detect: mmc1-detect-pins {
+		pins-insert {
+			pinmux = <PINMUX_GPIO54__FUNC_GPIO54>;
+			bias-pull-up;
+		};
+	};
+
+	mmc1_pins_default: mmc1-default-pins {
+		pins-cmd-dat {
+			pinmux = <PINMUX_GPIO110__FUNC_MSDC1_CMD>,
+				 <PINMUX_GPIO112__FUNC_MSDC1_DAT0>,
+				 <PINMUX_GPIO113__FUNC_MSDC1_DAT1>,
+				 <PINMUX_GPIO114__FUNC_MSDC1_DAT2>,
+				 <PINMUX_GPIO115__FUNC_MSDC1_DAT3>;
+			input-enable;
+			drive-strength = <8>;
+			bias-pull-up = <MTK_PUPD_SET_R1R0_01>;
+		};
+
+		pins-clk {
+			pinmux = <PINMUX_GPIO111__FUNC_MSDC1_CLK>;
+			drive-strength = <8>;
+			bias-pull-down = <MTK_PUPD_SET_R1R0_10>;
+		};
+	};
+
 	nor_pins_default: nor-default-pins {
 		pins-ck-io {
 			pinmux = <PINMUX_GPIO142__FUNC_SPINOR_IO0>,
-- 
2.37.2