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charset="utf-8" Add usdhc3 to support M.2 SDIO WiFi on i.MX91 11x11 EVK board. Signed-off-by: Sherry Sun --- .../boot/dts/freescale/imx91-11x11-evk.dts | 96 +++++++++++++++++++ 1 file changed, 96 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx91-11x11-evk.dts b/arch/arm64= /boot/dts/freescale/imx91-11x11-evk.dts index 03f460d62f7a..3a4a809b5e76 100644 --- a/arch/arm64/boot/dts/freescale/imx91-11x11-evk.dts +++ b/arch/arm64/boot/dts/freescale/imx91-11x11-evk.dts @@ -23,6 +23,7 @@ aliases { i2c2 =3D &lpi2c3; mmc0 =3D &usdhc1; mmc1 =3D &usdhc2; + mmc2 =3D &usdhc3; rtc0 =3D &bbnsm_rtc; serial0 =3D &lpuart1; serial1 =3D &lpuart2; @@ -57,6 +58,15 @@ reg_audio_pwr: regulator-audio-pwr { enable-active-high; }; =20 + reg_m2_pwr: regulator-m2-pwr { + compatible =3D "regulator-fixed"; + regulator-name =3D "M.2-power"; + regulator-min-microvolt =3D <3300000>; + regulator-max-microvolt =3D <3300000>; + gpio =3D <&pcal6524 13 GPIO_ACTIVE_HIGH>; + enable-active-high; + }; + reg_usdhc2_vmmc: regulator-usdhc2 { compatible =3D "regulator-fixed"; off-on-delay-us =3D <12000>; @@ -69,6 +79,23 @@ reg_usdhc2_vmmc: regulator-usdhc2 { enable-active-high; }; =20 + reg_usdhc3_vmmc: regulator-usdhc3 { + compatible =3D "regulator-fixed"; + regulator-name =3D "WLAN_EN"; + regulator-min-microvolt =3D <3300000>; + regulator-max-microvolt =3D <3300000>; + vin-supply =3D <®_m2_pwr>; + gpio =3D <&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 =3D <20000>; + enable-active-high; + }; + reserved-memory { ranges; #address-cells =3D <2>; @@ -144,6 +171,11 @@ cpu { }; }; }; + + usdhc3_pwrseq: usdhc3_pwrseq { + compatible =3D "mmc-pwrseq-simple"; + reset-gpios =3D <&pcal6524 12 GPIO_ACTIVE_LOW>; + }; }; =20 &adc1 { @@ -246,6 +278,12 @@ pcal6524: gpio@22 { interrupt-parent =3D <&gpio3>; pinctrl-0 =3D <&pinctrl_pcal6524>; pinctrl-names =3D "default"; + + m2-pcm-level-shifter-hog { + gpio-hog; + gpios =3D <19 GPIO_ACTIVE_HIGH>; + output-high; + }; }; =20 pmic@25 { @@ -531,6 +569,21 @@ &usdhc2 { status =3D "okay"; }; =20 +&usdhc3 { + bus-width =3D <4>; + keep-power-in-suspend; + mmc-pwrseq =3D <&usdhc3_pwrseq>; + non-removable; + pinctrl-0 =3D <&pinctrl_usdhc3>; + pinctrl-1 =3D <&pinctrl_usdhc3_100mhz>; + pinctrl-2 =3D <&pinctrl_usdhc3_200mhz>; + pinctrl-3 =3D <&pinctrl_usdhc3_sleep>; + pinctrl-names =3D "default", "state_100mhz", "state_200mhz", "sleep"; + vmmc-supply =3D <®_usdhc3_vmmc>; + wakeup-source; + status =3D "okay"; +}; + &wdog3 { fsl,ext-reset-output; status =3D "okay"; @@ -850,4 +903,47 @@ MX91_PAD_SD2_VSELECT__GPIO3_IO19 = 0x51e >; }; =20 + pinctrl_usdhc3: usdhc3grp { + fsl,pins =3D < + 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 =3D < + 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 =3D < + 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: usdhc3grpsleep { + fsl,pins =3D < + 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 + >; + }; }; --=20 2.37.1