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arm64: dts: imx91-11x11-evk: Add usdhc3 for SDIO WiFi support

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Add usdhc3 to support M.2 SDIO WiFi on i.MX91 11x11 EVK board.

Signed-off-by: Sherry Sun <sherry.sun@nxp.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
This commit is contained in:
Sherry Sun 2026-02-05 18:06:47 +08:00 committed by Frank Li
parent feea0340ad
commit 9c94cb52c8
1 changed files with 96 additions and 0 deletions
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96
arch/arm64/boot/dts/freescale/imx91-11x11-evk.dts
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@ -23,6 +23,7 @@ aliases {
i2c2 = &lpi2c3;
mmc0 = &usdhc1;
mmc1 = &usdhc2;
mmc2 = &usdhc3;
rtc0 = &bbnsm_rtc;
serial0 = &lpuart1;
serial1 = &lpuart2;
@ -57,6 +58,15 @@ reg_audio_pwr: regulator-audio-pwr {
enable-active-high;
};
reg_m2_pwr: regulator-m2-pwr {
compatible = "regulator-fixed";
regulator-name = "M.2-power";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
gpio = <&pcal6524 13 GPIO_ACTIVE_HIGH>;
enable-active-high;
};
reg_usdhc2_vmmc: regulator-usdhc2 {
compatible = "regulator-fixed";
off-on-delay-us = <12000>;
@ -69,6 +79,23 @@ reg_usdhc2_vmmc: regulator-usdhc2 {
enable-active-high;
};
reg_usdhc3_vmmc: regulator-usdhc3 {
compatible = "regulator-fixed";
regulator-name = "WLAN_EN";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
vin-supply = <&reg_m2_pwr>;
gpio = <&pcal6524 20 GPIO_ACTIVE_HIGH>;
/*
* IW612 wifi chip needs more delay than other wifi chips to complete
* the host interface initialization after power up, otherwise the
* internal state of IW612 may be unstable, resulting in the failure of
* the SDIO3.0 switch voltage.
*/
startup-delay-us = <20000>;
enable-active-high;
};
reserved-memory {
ranges;
#address-cells = <2>;
@ -144,6 +171,11 @@ cpu {
};
};
};
usdhc3_pwrseq: usdhc3_pwrseq {
compatible = "mmc-pwrseq-simple";
reset-gpios = <&pcal6524 12 GPIO_ACTIVE_LOW>;
};
};
&adc1 {
@ -246,6 +278,12 @@ pcal6524: gpio@22 {
interrupt-parent = <&gpio3>;
pinctrl-0 = <&pinctrl_pcal6524>;
pinctrl-names = "default";
m2-pcm-level-shifter-hog {
gpio-hog;
gpios = <19 GPIO_ACTIVE_HIGH>;
output-high;
};
};
pmic@25 {
@ -533,6 +571,21 @@ &usdhc2 {
status = "okay";
};
&usdhc3 {
bus-width = <4>;
keep-power-in-suspend;
mmc-pwrseq = <&usdhc3_pwrseq>;
non-removable;
pinctrl-0 = <&pinctrl_usdhc3>;
pinctrl-1 = <&pinctrl_usdhc3_100mhz>;
pinctrl-2 = <&pinctrl_usdhc3_200mhz>;
pinctrl-3 = <&pinctrl_usdhc3_sleep>;
pinctrl-names = "default", "state_100mhz", "state_200mhz", "sleep";
vmmc-supply = <&reg_usdhc3_vmmc>;
wakeup-source;
status = "okay";
};
&wdog3 {
fsl,ext-reset-output;
status = "okay";
@ -852,4 +905,47 @@ MX91_PAD_SD2_VSELECT__GPIO3_IO19 0x51e
>;
};
pinctrl_usdhc3: usdhc3grp {
fsl,pins = <
MX91_PAD_SD3_CLK__USDHC3_CLK 0x1582
MX91_PAD_SD3_CMD__USDHC3_CMD 0x1382
MX91_PAD_SD3_DATA0__USDHC3_DATA0 0x1382
MX91_PAD_SD3_DATA1__USDHC3_DATA1 0x1382
MX91_PAD_SD3_DATA2__USDHC3_DATA2 0x1382
MX91_PAD_SD3_DATA3__USDHC3_DATA3 0x1382
>;
};
pinctrl_usdhc3_100mhz: usdhc3-100mhzgrp {
fsl,pins = <
MX91_PAD_SD3_CLK__USDHC3_CLK 0x158e
MX91_PAD_SD3_CMD__USDHC3_CMD 0x138e
MX91_PAD_SD3_DATA0__USDHC3_DATA0 0x138e
MX91_PAD_SD3_DATA1__USDHC3_DATA1 0x138e
MX91_PAD_SD3_DATA2__USDHC3_DATA2 0x138e
MX91_PAD_SD3_DATA3__USDHC3_DATA3 0x138e
>;
};
pinctrl_usdhc3_200mhz: usdhc3-200mhzgrp {
fsl,pins = <
MX91_PAD_SD3_CLK__USDHC3_CLK 0x15fe
MX91_PAD_SD3_CMD__USDHC3_CMD 0x13fe
MX91_PAD_SD3_DATA0__USDHC3_DATA0 0x13fe
MX91_PAD_SD3_DATA1__USDHC3_DATA1 0x13fe
MX91_PAD_SD3_DATA2__USDHC3_DATA2 0x13fe
MX91_PAD_SD3_DATA3__USDHC3_DATA3 0x13fe
>;
};
pinctrl_usdhc3_sleep: usdhc3-sleepgrp {
fsl,pins = <
MX91_PAD_SD3_CLK__GPIO3_IO20 0x31e
MX91_PAD_SD3_CMD__GPIO3_IO21 0x31e
MX91_PAD_SD3_DATA0__GPIO3_IO22 0x31e
MX91_PAD_SD3_DATA1__GPIO3_IO23 0x31e
MX91_PAD_SD3_DATA2__GPIO3_IO24 0x31e
MX91_PAD_SD3_DATA3__GPIO3_IO25 0x31e
>;
};
};