Re: [PATCH V2 2/2] arm64: dts: imx8mp-evk: Add usdhc1 for SDIO WiFi support
From: Frank Li <Frank.li@nxp.com>
Date: 2026-02-05 15:15:34
Also in:
imx, linux-devicetree, lkml
On Thu, Feb 05, 2026 at 03:34:54PM +0800, Sherry Sun wrote:
Add usdhc1 to support M.2 SDIO WiFi on i.MX8MP EVK board. Signed-off-by: Sherry Sun <redacted> ---
Reviewed-by: Frank Li <Frank.Li@nxp.com>
quoted hunk ↗ jump to hunk
arch/arm64/boot/dts/freescale/imx8mp-evk.dts | 61 +++++++++++++++++++- 1 file changed, 60 insertions(+), 1 deletion(-)diff --git a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts index a1269c7a6cc2..dfcdcc739ec6 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts +++ b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts@@ -134,7 +134,7 @@ reg_audio_pwr: regulator-audio-pwr { enable-active-high; }; - reg_pcie0: regulator-pcie { + reg_m2_wlan: reg_pcie0: regulator-pcie { compatible = "regulator-fixed"; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_pcie0_reg>;@@ -250,6 +250,13 @@ cpu { }; }; + usdhc1_pwrseq: usdhc1_pwrseq { + compatible = "mmc-pwrseq-simple"; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_usdhc1_pwrseq>; + reset-gpios = <&gpio2 10 GPIO_ACTIVE_LOW>; + }; + reserved-memory { #address-cells = <2>; #size-cells = <2>;@@ -863,6 +870,19 @@ &uart3 { status = "okay"; }; +&usdhc1 { + pinctrl-names = "default", "state_100mhz", "state_200mhz"; + pinctrl-0 = <&pinctrl_usdhc1>; + pinctrl-1 = <&pinctrl_usdhc1_100mhz>; + pinctrl-2 = <&pinctrl_usdhc1_200mhz>; + keep-power-in-suspend; + non-removable; + wakeup-source; + mmc-pwrseq = <&usdhc1_pwrseq>; + vmmc-supply = <®_m2_wlan>; + status = "okay"; +}; + &usdhc2 { assigned-clocks = <&clk IMX8MP_CLK_USDHC2>; assigned-clock-rates = <400000000>;@@ -1169,6 +1189,45 @@ MX8MP_IOMUXC_ECSPI1_MISO__UART3_DCE_CTS 0x140 >; }; + pinctrl_usdhc1: usdhc1grp { + fsl,pins = < + 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 = < + 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 = < + 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 = < + MX8MP_IOMUXC_SD1_RESET_B__GPIO2_IO10 0x140 + >; + }; + pinctrl_usdhc2: usdhc2grp { fsl,pins = < MX8MP_IOMUXC_SD2_CLK__USDHC2_CLK 0x190 --2.37.1