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charset="utf-8" The current pin configuration for MX8MP_IOMUXC_SD1_DATA4__GPIO2_IO06 sets the weak pull-up but does not enable the pull select field. Bit 8 in the IOMUX register must be set in order for the weak pull-up to actually take effect. Update the pinctrl setting from 0x40 to 0x140 to enable both the pull select and the weak pull-up, ensuring the line behaves as expected. Signed-off-by: Sherry Sun --- arch/arm64/boot/dts/freescale/imx8mp-evk.dts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts b/arch/arm64/boot= /dts/freescale/imx8mp-evk.dts index 3f9b3fab8ac3..a1269c7a6cc2 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts +++ b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts @@ -1069,7 +1069,7 @@ MX8MP_IOMUXC_SD1_DATA5__GPIO2_IO07 0x40 =20 pinctrl_pcie0_reg: pcie0reggrp { fsl,pins =3D < - MX8MP_IOMUXC_SD1_DATA4__GPIO2_IO06 0x40 + MX8MP_IOMUXC_SD1_DATA4__GPIO2_IO06 0x140 >; }; =20 --=20 2.37.1 From nobody Sun Feb 8 08:47:48 2026 Received: from DUZPR83CU001.outbound.protection.outlook.com (mail-northeuropeazon11012041.outbound.protection.outlook.com [52.101.66.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7CFAE22424C; Wed, 4 Feb 2026 02:31:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; 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charset="utf-8" The M.2 connector on the i.MX8MP EVK can support both PCIe and SDIO modes. The existing regulator node reg_pcie0 is used to control the pin56 W_DISABLE1 on the M.2 connector, which is also required by SDIO-based WLAN modules. To prepare for adding M.2 SDIO WiFi support, rename the regulator node from reg_pcie0 to reg_m2_wlan and update its pinctrl and regulator name accordingly. This allows the same GPIO-controlled power rail to be reused for both PCIe and SDIO WLAN cards. No functional behavior changes other than the rename. Signed-off-by: Sherry Sun --- arch/arm64/boot/dts/freescale/imx8mp-evk.dts | 22 ++++++++++---------- 1 file changed, 11 insertions(+), 11 deletions(-) diff --git a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts b/arch/arm64/boot= /dts/freescale/imx8mp-evk.dts index a1269c7a6cc2..f86d6b428a47 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts +++ b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts @@ -134,11 +134,11 @@ reg_audio_pwr: regulator-audio-pwr { enable-active-high; }; =20 - reg_pcie0: regulator-pcie { + reg_m2_wlan: regulator-wlan { compatible =3D "regulator-fixed"; pinctrl-names =3D "default"; - pinctrl-0 =3D <&pinctrl_pcie0_reg>; - regulator-name =3D "MPCIE_3V3"; + pinctrl-0 =3D <&pinctrl_reg_wlan>; + regulator-name =3D "WLAN_EN"; regulator-min-microvolt =3D <3300000>; regulator-max-microvolt =3D <3300000>; gpio =3D <&gpio2 6 GPIO_ACTIVE_HIGH>; @@ -764,8 +764,8 @@ &pcie0 { pinctrl-0 =3D <&pinctrl_pcie0>; /* This property is deprecated, use reset-gpios from the Root Port node. = */ reset-gpio =3D <&gpio2 7 GPIO_ACTIVE_LOW>; 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charset="utf-8" Add usdhc1 to support M.2 SDIO WiFi on i.MX8MP EVK board. Signed-off-by: Sherry Sun --- arch/arm64/boot/dts/freescale/imx8mp-evk.dts | 59 ++++++++++++++++++++ 1 file changed, 59 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts b/arch/arm64/boot= /dts/freescale/imx8mp-evk.dts index f86d6b428a47..0b45ff73a5a9 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts +++ b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts @@ -250,6 +250,13 @@ cpu { }; }; =20 + usdhc1_pwrseq: usdhc1_pwrseq { + compatible =3D "mmc-pwrseq-simple"; + pinctrl-names =3D "default"; + pinctrl-0 =3D <&pinctrl_usdhc1_pwrseq>; + reset-gpios =3D <&gpio2 10 GPIO_ACTIVE_LOW>; + }; + reserved-memory { #address-cells =3D <2>; #size-cells =3D <2>; @@ -863,6 +870,19 @@ &uart3 { status =3D "okay"; }; =20 +&usdhc1 { + pinctrl-names =3D "default", "state_100mhz", "state_200mhz"; + pinctrl-0 =3D <&pinctrl_usdhc1>; + pinctrl-1 =3D <&pinctrl_usdhc1_100mhz>; + pinctrl-2 =3D <&pinctrl_usdhc1_200mhz>; + keep-power-in-suspend; + non-removable; + wakeup-source; + mmc-pwrseq =3D <&usdhc1_pwrseq>; + vmmc-supply =3D <®_m2_wlan>; + status =3D "okay"; +}; + &usdhc2 { assigned-clocks =3D <&clk IMX8MP_CLK_USDHC2>; assigned-clock-rates =3D <400000000>; @@ -1169,6 +1189,45 @@ MX8MP_IOMUXC_ECSPI1_MISO__UART3_DCE_CTS 0x140 >; }; =20 + pinctrl_usdhc1: usdhc1grp { + fsl,pins =3D < + MX8MP_IOMUXC_SD1_CLK__USDHC1_CLK 0x190 + MX8MP_IOMUXC_SD1_CMD__USDHC1_CMD 0x1d0 + MX8MP_IOMUXC_SD1_DATA0__USDHC1_DATA0 0x1d0 + MX8MP_IOMUXC_SD1_DATA1__USDHC1_DATA1 0x1d0 + MX8MP_IOMUXC_SD1_DATA2__USDHC1_DATA2 0x1d0 + MX8MP_IOMUXC_SD1_DATA3__USDHC1_DATA3 0x1d0 + >; + }; + + pinctrl_usdhc1_100mhz: usdhc1-100mhzgrp { + fsl,pins =3D < + MX8MP_IOMUXC_SD1_CLK__USDHC1_CLK 0x194 + MX8MP_IOMUXC_SD1_CMD__USDHC1_CMD 0x1d4 + MX8MP_IOMUXC_SD1_DATA0__USDHC1_DATA0 0x1d4 + MX8MP_IOMUXC_SD1_DATA1__USDHC1_DATA1 0x1d4 + MX8MP_IOMUXC_SD1_DATA2__USDHC1_DATA2 0x1d4 + MX8MP_IOMUXC_SD1_DATA3__USDHC1_DATA3 0x1d4 + >; + }; + + pinctrl_usdhc1_200mhz: usdhc1-200mhzgrp { + fsl,pins =3D < + MX8MP_IOMUXC_SD1_CLK__USDHC1_CLK 0x196 + MX8MP_IOMUXC_SD1_CMD__USDHC1_CMD 0x1d6 + MX8MP_IOMUXC_SD1_DATA0__USDHC1_DATA0 0x1d6 + MX8MP_IOMUXC_SD1_DATA1__USDHC1_DATA1 0x1d6 + MX8MP_IOMUXC_SD1_DATA2__USDHC1_DATA2 0x1d6 + MX8MP_IOMUXC_SD1_DATA3__USDHC1_DATA3 0x1d6 + >; + }; + + pinctrl_usdhc1_pwrseq: usdhc1pwrseq { + fsl,pins =3D < + MX8MP_IOMUXC_SD1_RESET_B__GPIO2_IO10 0x140 + >; + }; + pinctrl_usdhc2: usdhc2grp { fsl,pins =3D < MX8MP_IOMUXC_SD2_CLK__USDHC2_CLK 0x190 --=20 2.37.1