From: Stefano Radaelli <stefano.r@variscite.com>
To: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Stefano Radaelli <stefano.r@variscite.com>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Shawn Guo <shawnguo@kernel.org>,
Sascha Hauer <s.hauer@pengutronix.de>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
Fabio Estevam <festevam@gmail.com>,
imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org
Subject: [PATCH v1 1/6] arm64: dts: imx8mp-var-som: Remove USDHC2 controller and related signals
Date: Wed, 10 Dec 2025 16:19:53 +0100 [thread overview]
Message-ID: <20251210152000.42265-2-stefano.r@variscite.com> (raw)
In-Reply-To: <20251210152000.42265-1-stefano.r@variscite.com>
The VAR-SOM-MX8MP does not include any microSD slot connected to USDHC2.
The USDHC2 interface is instead available only on the Symphony carrier
board, and customers may optionally route it on their custom carrier
boards.
Since USDHC2 is not populated on the SOM, drop the USDHC2 node together
with its regulators, pinctrl groups and GPIOs from the SOM device tree.
This avoids exposing non-existing hardware and prevents misleading DT
descriptions for boards that do not implement USDHC2.
Signed-off-by: Stefano Radaelli <stefano.r@variscite.com>
---
.../boot/dts/freescale/imx8mp-var-som.dtsi | 75 -------------------
1 file changed, 75 deletions(-)
diff --git a/arch/arm64/boot/dts/freescale/imx8mp-var-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mp-var-som.dtsi
index 29f080904482..949d9878f395 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-var-som.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp-var-som.dtsi
@@ -35,27 +35,6 @@ memory@40000000 {
<0x1 0x00000000 0 0xc0000000>;
};
- reg_usdhc2_vmmc: regulator-usdhc2-vmmc {
- compatible = "regulator-fixed";
- regulator-name = "VSD_3V3";
- regulator-min-microvolt = <3300000>;
- regulator-max-microvolt = <3300000>;
- gpios = <&gpio4 22 GPIO_ACTIVE_HIGH>;
- enable-active-high;
- startup-delay-us = <100>;
- off-on-delay-us = <12000>;
- };
-
- reg_usdhc2_vqmmc: regulator-usdhc2-vqmmc {
- compatible = "regulator-gpio";
- regulator-name = "VSD_VSEL";
- regulator-min-microvolt = <1800000>;
- regulator-max-microvolt = <3300000>;
- gpios = <&gpio2 12 GPIO_ACTIVE_HIGH>;
- states = <3300000 0x0 1800000 0x1>;
- vin-supply = <&ldo5>;
- };
-
reg_phy_supply: regulator-phy-supply {
compatible = "regulator-fixed";
regulator-name = "phy-supply";
@@ -271,19 +250,6 @@ &uart2 {
status = "okay";
};
-/* SD-card */
-&usdhc2 {
- pinctrl-names = "default", "state_100mhz", "state_200mhz";
- pinctrl-0 = <&pinctrl_usdhc2>, <&pinctrl_usdhc2_gpio>;
- pinctrl-1 = <&pinctrl_usdhc2_100mhz>, <&pinctrl_usdhc2_gpio>;
- pinctrl-2 = <&pinctrl_usdhc2_200mhz>, <&pinctrl_usdhc2_gpio>;
- cd-gpios = <&gpio1 14 GPIO_ACTIVE_LOW>;
- vmmc-supply = <®_usdhc2_vmmc>;
- vqmmc-supply = <®_usdhc2_vqmmc>;
- bus-width = <4>;
- status = "okay";
-};
-
/* eMMC */
&usdhc3 {
pinctrl-names = "default", "state_100mhz", "state_200mhz";
@@ -358,47 +324,6 @@ MX8MP_IOMUXC_UART2_TXD__UART2_DCE_TX 0x40
>;
};
- pinctrl_usdhc2_gpio: usdhc2-gpiogrp {
- fsl,pins = <
- MX8MP_IOMUXC_GPIO1_IO14__GPIO1_IO14 0x1c4
- MX8MP_IOMUXC_SAI2_RXC__GPIO4_IO22 0x10
- MX8MP_IOMUXC_SD2_CD_B__GPIO2_IO12 0xc0
- >;
- };
-
- pinctrl_usdhc2: usdhc2grp {
- fsl,pins = <
- MX8MP_IOMUXC_SD2_CLK__USDHC2_CLK 0x190
- MX8MP_IOMUXC_SD2_CMD__USDHC2_CMD 0x1d0
- MX8MP_IOMUXC_SD2_DATA0__USDHC2_DATA0 0x1d0
- MX8MP_IOMUXC_SD2_DATA1__USDHC2_DATA1 0x1d0
- MX8MP_IOMUXC_SD2_DATA2__USDHC2_DATA2 0x1d0
- MX8MP_IOMUXC_SD2_DATA3__USDHC2_DATA3 0x1d0
- >;
- };
-
- pinctrl_usdhc2_100mhz: usdhc2-100mhzgrp {
- fsl,pins = <
- MX8MP_IOMUXC_SD2_CLK__USDHC2_CLK 0x194
- MX8MP_IOMUXC_SD2_CMD__USDHC2_CMD 0x1d4
- MX8MP_IOMUXC_SD2_DATA0__USDHC2_DATA0 0x1d4
- MX8MP_IOMUXC_SD2_DATA1__USDHC2_DATA1 0x1d4
- MX8MP_IOMUXC_SD2_DATA2__USDHC2_DATA2 0x1d4
- MX8MP_IOMUXC_SD2_DATA3__USDHC2_DATA3 0x1d4
- >;
- };
-
- pinctrl_usdhc2_200mhz: usdhc2-200mhzgrp {
- fsl,pins = <
- MX8MP_IOMUXC_SD2_CLK__USDHC2_CLK 0x196
- MX8MP_IOMUXC_SD2_CMD__USDHC2_CMD 0x1d6
- MX8MP_IOMUXC_SD2_DATA0__USDHC2_DATA0 0x1d6
- MX8MP_IOMUXC_SD2_DATA1__USDHC2_DATA1 0x1d6
- MX8MP_IOMUXC_SD2_DATA2__USDHC2_DATA2 0x1d6
- MX8MP_IOMUXC_SD2_DATA3__USDHC2_DATA3 0x1d6
- >;
- };
-
pinctrl_usdhc3: usdhc3grp {
fsl,pins = <
MX8MP_IOMUXC_NAND_WE_B__USDHC3_CLK 0x190
--
2.47.3
next prev parent reply other threads:[~2025-12-10 15:20 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-10 15:19 [PATCH v1 0/6] arm64: dts: imx8mp-var-som: align DTS with hardware revision Stefano Radaelli
2025-12-10 15:19 ` Stefano Radaelli [this message]
2025-12-10 15:19 ` [PATCH v1 2/6] arm64: dts: imx8mp-var-som: Remove PCA9534 GPIO expander Stefano Radaelli
2025-12-10 15:19 ` [PATCH v1 3/6] arm64: dts: imx8mp-var-som: Remove UART2 console Stefano Radaelli
2025-12-11 0:46 ` Fabio Estevam
[not found] ` <DB4PR08MB103414303516B7FAFF29DB571E9A1A@DB4PR08MB10341.eurprd08.prod.outlook.com>
2025-12-11 12:31 ` Fabio Estevam
2025-12-10 15:19 ` [PATCH v1 4/6] arm64: dts: imx8mp-var-som: Add WiFi and Bluetooth support Stefano Radaelli
2025-12-10 15:19 ` [PATCH v1 5/6] arm64: dts: imx8mp-var-som: Add support for WM8904 audio codec Stefano Radaelli
2025-12-10 15:19 ` [PATCH v1 6/6] arm64: dts: imx8mp-var-som: Add support for ADS7846 touchscreen Stefano Radaelli
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