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Message-ID: <aRqW7oUpfa8hiIpv@lsvm11u0000395.swis.ap-northeast-2.aws.nxp.com>
Date: Mon, 17 Nov 2025 12:30:54 +0900
From: Joseph Guo <qijian.guo@....com>
To: Francesco Valla <francesco@...la.it>
Cc: Shawn Guo <shawnguo@...nel.org>, Sascha Hauer <s.hauer@...gutronix.de>,
Pengutronix Kernel Team <kernel@...gutronix.de>,
Fabio Estevam <festevam@...il.com>, Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>, imx@...ts.linux.dev,
linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, Justin Jiang <justin.jiang@....com>,
Tom Zheng <haidong.zheng@....com>,
Steven Yang <steven.yang@....com>
Subject: Re: [PATCH 1/2] arm64: dts: freescale: Add FRDM-IMX91 basic support
On Fri, Nov 14, 2025 at 01:58:25PM +0100, Francesco Valla wrote:
> Hi Joseph,
>
> thank you for the patch, I very recently acquired a FRDM-IMX91 and I
> think it has great potential.
>
> Some observations follow - they all assume the design files available on
> the NXP website are updated and aligned with the actual population.
>
Hi Francesco,
Thanks for your review. Please kindly see my comment.
> On Fri, Nov 14, 2025 at 03:55:32PM +0900, Joseph Guo wrote:
> > The FRDM i.MX 91 development board is a low-cost and
> > compact developmentboard featuring the i.MX 91 applications processor.
> >
> > Add FRDM-IMX91 board support.
> > - Enable ADC1.
> > - Enable lpuart1 and lpuart5.
> > - Enable network eqos and fec.
> > - Enable I2C bus and children nodes under I2C bus.
> > - Enable USB and related nodes.
> > - Enable uSDHC1, uSDHC2 and uSDHC3.
> > - Enable MU1 and MU2.
> > - Enable Watchdog3.
> > - Enable MQS
> >
> > Co-developed-by: Tom Zheng <haidong.zheng@....com>
> > Signed-off-by: Tom Zheng <haidong.zheng@....com>
> > Co-developed-by: Steven Yang <steven.yang@....com>
> > Signed-off-by: Steven Yang <steven.yang@....com>
> > Signed-off-by: Joseph Guo <qijian.guo@....com>
> > ---
> > arch/arm64/boot/dts/freescale/Makefile | 1 +
> > arch/arm64/boot/dts/freescale/imx91-11x11-frdm.dts | 823 +++++++++++++++++++++
> > 2 files changed, 824 insertions(+)
> >
> > + model = "NXP FRDM-IMX91";
> > +
> > + aliases {
> > + ethernet0 = &fec;
> > + ethernet1 = &eqos;
> > + gpio0 = &gpio1;
> > + gpio1 = &gpio2;
> > + gpio2 = &gpio3;
> > + gpio3 = &gpio4;
> > + i2c0 = &lpi2c1;
> > + i2c1 = &lpi2c2;
> > + i2c2 = &lpi2c3;
> > + mmc0 = &usdhc1;
> > + mmc1 = &usdhc2;
> > + mmc2 = &usdhc3;
> > + rtc0 = &bbnsm_rtc;
>
> Please add the pcf2131 RTC here (for which a backup battery can be
> fitted).
Yes Sure, it should be added.
> > + pinctrl-0 = <&pinctrl_reg_usdhc2_vmmc>;
> > + pinctrl-names = "default";
> > + regulator-max-microvolt = <3300000>;
> > + regulator-min-microvolt = <3300000>;
> > + regulator-name = "VSD_3V3";
> > + gpio = <&gpio3 7 GPIO_ACTIVE_HIGH>;
> > + enable-active-high;
> > + };
> > +
> > + reg_usdhc3_vmmc: regulator-usdhc3 {
> > + compatible = "regulator-fixed";
> > + regulator-max-microvolt = <3300000>;
> > + regulator-min-microvolt = <3300000>;
> > + regulator-name = "WLAN_EN";
> > + vin-supply = <®_m2_pwr>;
> > + gpio = <&pcal6524 20 GPIO_ACTIVE_HIGH>;
>
> By default population, line 20 of the PCAL6524 should be connected to
> the reset line of the PCAL6408; the regulator supplying USDHC3 devices
> should be only the aldready preset reg_m2_pwr.
>
This regualor is defined as PDn pin of the wifi IW610/612 module.
The PDn pin should have some delay after VCC.
> > + enable-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.
> > + */
>
> The WiFi chipseti here should be a IW610 and not a IW612 - if the
> comment still stands, it should report the correct name.
>
Yes, it is IW610, the comment need to stand, and I will add about the detail
of this regulator to explain why this regulator needed.
...
> > + mdio {
> > + compatible = "snps,dwmac-mdio";
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > + clock-frequency = <5000000>;
> > +
> > + ethphy1: ethernet-phy@1 {
> > + reg = <1>;
> > + realtek,clkout-disable;
>
> Isn't the PHY from Motorcomm?
>
Yes, should be dropped.
> > + };
> > + };
> > +};
> > +
> > +&fec {
> > + phy-handle = <ðphy2>;
> > + phy-mode = "rgmii-id";
> > + pinctrl-0 = <&pinctrl_fec>;
> > + pinctrl-1 = <&pinctrl_fec_sleep>;
> > + pinctrl-names = "default", "sleep";
> > + fsl,magic-packet;
> > + status = "okay";
> > +
> > + mdio {
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > + clock-frequency = <5000000>;
> > +
> > + ethphy2: ethernet-phy@2 {
> > + reg = <2>;
> > + realtek,clkout-disable;
>
> See above about the PHY manufacturer.
>
Ditto
> > + };
> > + };
> > +};
> > +
> > +&flexcan2 {
> > + pinctrl-0 = <&pinctrl_flexcan2>;
> > + pinctrl-1 = <&pinctrl_flexcan2_sleep>;
> > + pinctrl-names = "default", "sleep";
> > + xceiver-supply = <®_can2_stby>;
>
> A CAN PHY should be used here for the management of the standby line.
>
Yes, should be changed to use can phy here.
> > + status = "okay";
> > +};
> > +
> > +&lpi2c1 {
> > + clock-frequency = <400000>;
> > + pinctrl-0 = <&pinctrl_lpi2c1>;
> > + pinctrl-names = "default";
> > + status = "okay";
> > +
> > + pcal6408: gpio@20 {
> > + compatible = "nxp,pcal9554b";
> > + reg = <0x20>;
> > + #gpio-cells = <2>;
> > + gpio-controller;
> > + vcc-supply = <®_usdhc3_vmmc>;
>
> Supply here is buck5 and not reg_usdhc3_vmmc.
>
reg_usdhc3_vmmc is controlled pcal6424_20.
It is the reset pin of the pcal6408, shared with wifi PDn pin.
> > + status = "okay";
> > + };
> > +};
> > +
> > +&lpi2c2 {
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > + clock-frequency = <400000>;
> > + pinctrl-0 = <&pinctrl_lpi2c2>;
> > + pinctrl-names = "default";
> > + status = "okay";
> > +
> > + pcal6524: gpio@22 {
> > + compatible = "nxp,pcal6524";
> > + reg = <0x22>;
> > + #interrupt-cells = <2>;
> > + interrupt-controller;
> > + interrupts = <27 IRQ_TYPE_LEVEL_LOW>;
> > + #gpio-cells = <2>;
> > + gpio-controller;
> > + interrupt-parent = <&gpio3>;
> > + pinctrl-0 = <&pinctrl_pcal6524>;
> > + pinctrl-names = "default";
> > + };
> > +
> > + pmic@25 {
> > + compatible = "nxp,pca9451a";
> > + reg = <0x25>;
> > + interrupts = <11 IRQ_TYPE_EDGE_FALLING>;
> > + interrupt-parent = <&pcal6524>;
> > +
> > + regulators {
> > + buck1: BUCK1 {
> > + regulator-always-on;
> > + regulator-boot-on;
> > + regulator-max-microvolt = <2237500>;
> > + regulator-min-microvolt = <650000>;
> > + regulator-name = "BUCK1";
> > + regulator-ramp-delay = <3125>;
> > + };
> > +
> > + buck2: BUCK2 {
> > + regulator-always-on;
> > + regulator-boot-on;
> > + regulator-max-microvolt = <2187500>;
> > + regulator-min-microvolt = <600000>;
> > + regulator-name = "BUCK2";
> > + regulator-ramp-delay = <3125>;
> > + };
> > +
> > + buck4: BUCK4 {
> > + regulator-always-on;
> > + regulator-boot-on;
> > + regulator-max-microvolt = <3400000>;
> > + regulator-min-microvolt = <600000>;
> > + regulator-name = "BUCK4";
> > + };
> > +
> > + buck5: BUCK5 {
> > + regulator-always-on;
> > + regulator-boot-on;
> > + regulator-max-microvolt = <3400000>;
> > + regulator-min-microvolt = <600000>;
> > + regulator-name = "BUCK5";
> > + };
> > +
> > + buck6: BUCK6 {
> > + regulator-always-on;
> > + regulator-boot-on;
> > + regulator-max-microvolt = <3400000>;
> > + regulator-min-microvolt = <600000>;
> > + regulator-name = "BUCK6";
> > + };
> > +
> > + ldo1: LDO1 {
> > + regulator-always-on;
> > + regulator-boot-on;
> > + regulator-max-microvolt = <3300000>;
> > + regulator-min-microvolt = <1600000>;
> > + regulator-name = "LDO1";
> > + };
> > +
> > + ldo4: LDO4 {
> > + regulator-always-on;
> > + regulator-boot-on;
> > + regulator-max-microvolt = <3300000>;
> > + regulator-min-microvolt = <800000>;
> > + regulator-name = "LDO4";
> > + };
> > +
> > + ldo5: LDO5 {
> > + regulator-always-on;
> > + regulator-boot-on;
> > + regulator-max-microvolt = <3300000>;
> > + regulator-min-microvolt = <1800000>;
> > + regulator-name = "LDO5";
> > + };
> > + };
> > + };
> > +};
> > +
> > +&lpi2c3 {
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > + clock-frequency = <400000>;
> > + pinctrl-0 = <&pinctrl_lpi2c3>;
> > + pinctrl-names = "default";
> > + status = "okay";
> > +
> > + ptn5110: tcpc@50 {
> > + compatible = "nxp,ptn5110", "tcpci";
> > + reg = <0x50>;
> > + interrupts = <27 IRQ_TYPE_LEVEL_LOW>;
> > + interrupt-parent = <&gpio3>;
> > +
> > + typec1_con: connector {
> > + compatible = "usb-c-connector";
> > + data-role = "dual";
> > + label = "USB-C";
> > + op-sink-microwatt = <15000000>;
> > + power-role = "dual";
> > + self-powered;
> > + sink-pdos = <PDO_FIXED(5000, 3000, PDO_FIXED_USB_COMM)
> > + PDO_VAR(5000, 20000, 3000)>;
> > + source-pdos = <PDO_FIXED(5000, 3000, PDO_FIXED_USB_COMM)>;
> > + try-power-role = "sink";
> > +
> > + ports {
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > +
> > + port@0 {
> > + reg = <0>;
> > +
> > + typec1_dr_sw: endpoint {
> > + remote-endpoint = <&usb1_drd_sw>;
> > + };
> > + };
> > + };
> > + };
> > + };
> > +
> > + pcf2131: rtc@53 {
> > + compatible = "nxp,pcf2131";
> > + reg = <0x53>;
> > + interrupts = <1 IRQ_TYPE_EDGE_FALLING>;
> > + interrupt-parent = <&pcal6524>;
> > + status = "okay";
> > + };
> > +};
> > +
> > +&lpspi3 {
> > + cs-gpios = <&gpio2 8 GPIO_ACTIVE_LOW>;
> > + pinctrl-0 = <&pinctrl_lpspi3>;
> > + pinctrl-1 = <&pinctrl_lpspi3>;
> > + pinctrl-names = "default", "sleep";
> > + gpio = <&pcal6408 0 GPIO_ACTIVE_HIGH>;
>
> Is the SPI driver capturing this GPIO line?
>
This should be a gpio hog, will change.
Regards,
Joseph
> > + status = "okay";
> > +
> > + spidev0: spi@0 {
> > + compatible = "lwn,bk4";
> > + reg = <0>;
> > + spi-max-frequency = <1000000>;
> > + };
> > +};
> > +
> > +&lpuart1 {
> > + pinctrl-0 = <&pinctrl_uart1>;
> > + pinctrl-names = "default";
> > + status = "okay";
> > +};
> > +
> > +&lpuart5 {
> > + pinctrl-0 = <&pinctrl_uart5>;
> > + pinctrl-names = "default";
> > + status = "okay";
> > +
> > + bluetooth {
> > + compatible = "nxp,88w8987-bt";
> > + };
> > +};
> > +
> > +&mqs1 {
> > + clocks = <&clk IMX93_CLK_MQS1_GATE>;
> > + clock-names = "mclk";
> > + pinctrl-0 = <&pinctrl_mqs1>;
> > + pinctrl-names = "default";
> > + status = "okay";
> > +};
> > +
> > +&sai1 {
> > + clocks = <&clk IMX93_CLK_SAI1_IPG>, <&clk IMX93_CLK_DUMMY>,
> > + <&clk IMX93_CLK_SAI1_GATE>, <&clk IMX93_CLK_DUMMY>,
> > + <&clk IMX93_CLK_DUMMY>, <&clk IMX93_CLK_AUDIO_PLL>;
> > + clock-names = "bus", "mclk0", "mclk1", "mclk2", "mclk3", "pll8k";
> > + assigned-clocks = <&clk IMX93_CLK_SAI1>;
> > + assigned-clock-parents = <&clk IMX93_CLK_AUDIO_PLL>;
> > + assigned-clock-rates = <24576000>;
> > + #sound-dai-cells = <0>;
> > + fsl,sai-mclk-direction-output;
> > + status = "okay";
> > +};
> > +
> > +&usbotg1 {
> > + adp-disable;
> > + disable-over-current;
> > + dr_mode = "otg";
> > + hnp-disable;
> > + srp-disable;
> > + usb-role-switch;
> > + samsung,picophy-dc-vol-level-adjust = <7>;
> > + samsung,picophy-pre-emp-curr-control = <3>;
> > + status = "okay";
> > +
> > + port {
> > + usb1_drd_sw: endpoint {
> > + remote-endpoint = <&typec1_dr_sw>;
> > + };
> > + };
> > +};
> > +
> > +&usbotg2 {
> > + disable-over-current;
> > + dr_mode = "host";
> > + samsung,picophy-dc-vol-level-adjust = <7>;
> > + samsung,picophy-pre-emp-curr-control = <3>;
> > + status = "okay";
> > +};
> > +
> > +&usdhc1 {
> > + bus-width = <8>;
> > + non-removable;
> > + pinctrl-0 = <&pinctrl_usdhc1>;
> > + pinctrl-1 = <&pinctrl_usdhc1_100mhz>;
> > + pinctrl-2 = <&pinctrl_usdhc1_200mhz>;
> > + pinctrl-names = "default", "state_100mhz", "state_200mhz";
> > + status = "okay";
> > +};
> > +
> > +&usdhc2 {
> > + bus-width = <4>;
> > + cd-gpios = <&gpio3 00 GPIO_ACTIVE_LOW>;
> > + no-mmc;
> > + no-sdio;
> > + pinctrl-0 = <&pinctrl_usdhc2>, <&pinctrl_usdhc2_gpio>;
> > + pinctrl-1 = <&pinctrl_usdhc2_100mhz>, <&pinctrl_usdhc2_gpio>;
> > + pinctrl-2 = <&pinctrl_usdhc2_200mhz>, <&pinctrl_usdhc2_gpio>;
> > + pinctrl-3 = <&pinctrl_usdhc2_sleep>, <&pinctrl_usdhc2_gpio_sleep>;
> > + pinctrl-names = "default", "state_100mhz", "state_200mhz", "sleep";
> > + vmmc-supply = <®_usdhc2_vmmc>;
> > + status = "okay";
> > +};
> > +
> > +&usdhc3 {
> > + bus-width = <4>;
> > + keep-power-in-suspend;
> > + mmc-pwrseq = <&usdhc3_pwrseq>;
> > + non-removable;
> > + pinctrl-0 = <&pinctrl_usdhc3>, <&pinctrl_usdhc3_wlan>;
> > + pinctrl-1 = <&pinctrl_usdhc3_100mhz>, <&pinctrl_usdhc3_wlan>;
> > + pinctrl-2 = <&pinctrl_usdhc3_200mhz>, <&pinctrl_usdhc3_wlan>;
> > + pinctrl-3 = <&pinctrl_usdhc3_sleep>, <&pinctrl_usdhc3_wlan>;
> > + pinctrl-names = "default", "state_100mhz", "state_200mhz", "sleep";
> > + vmmc-supply = <®_usdhc3_vmmc>;
> > + wakeup-source;
> > + status = "okay";
> > +};
> > +
> > +&wdog3 {
> > + fsl,ext-reset-output;
> > + status = "okay";
> > +};
> > +
> > +&iomuxc {
> > + pinctrl_eqos: eqosgrp {
> > + fsl,pins = <
> > + MX91_PAD_ENET1_MDC__ENET1_MDC 0x57e
> > + MX91_PAD_ENET1_MDIO__ENET_QOS_MDIO 0x57e
> > + MX91_PAD_ENET1_RD0__ENET_QOS_RGMII_RD0 0x57e
> > + MX91_PAD_ENET1_RD1__ENET_QOS_RGMII_RD1 0x57e
> > + MX91_PAD_ENET1_RD2__ENET_QOS_RGMII_RD2 0x57e
> > + MX91_PAD_ENET1_RD3__ENET_QOS_RGMII_RD3 0x57e
> > + MX91_PAD_ENET1_RXC__ENET_QOS_RGMII_RXC 0x5fe
> > + MX91_PAD_ENET1_RX_CTL__ENET_QOS_RGMII_RX_CTL 0x57e
> > + MX91_PAD_ENET1_TD0__ENET_QOS_RGMII_TD0 0x57e
> > + MX91_PAD_ENET1_TD1__ENET1_RGMII_TD1 0x57e
> > + MX91_PAD_ENET1_TD2__ENET_QOS_RGMII_TD2 0x57e
> > + MX91_PAD_ENET1_TD3__ENET_QOS_RGMII_TD3 0x57e
> > + MX91_PAD_ENET1_TXC__CCM_ENET_QOS_CLOCK_GENERATE_TX_CLK 0x5fe
> > + MX91_PAD_ENET1_TX_CTL__ENET_QOS_RGMII_TX_CTL 0x57e
> > + >;
> > + };
> > +
> > + pinctrl_eqos_sleep: eqosgrpsleep {
> > + fsl,pins = <
> > + MX91_PAD_ENET1_MDC__GPIO4_IO0 0x31e
> > + MX91_PAD_ENET1_MDIO__GPIO4_IO1 0x31e
> > + MX91_PAD_ENET1_RD0__GPIO4_IO10 0x31e
> > + MX91_PAD_ENET1_RD1__GPIO4_IO11 0x31e
> > + MX91_PAD_ENET1_RD2__GPIO4_IO12 0x31e
> > + MX91_PAD_ENET1_RD3__GPIO4_IO13 0x31e
> > + MX91_PAD_ENET1_RXC__GPIO4_IO9 0x31e
> > + MX91_PAD_ENET1_RX_CTL__GPIO4_IO8 0x31e
> > + MX91_PAD_ENET1_TD0__GPIO4_IO5 0x31e
> > + MX91_PAD_ENET1_TD1__GPIO4_IO4 0x31e
> > + MX91_PAD_ENET1_TD2__GPIO4_IO3 0x31e
> > + MX91_PAD_ENET1_TD3__GPIO4_IO2 0x31e
> > + MX91_PAD_ENET1_TXC__GPIO4_IO7 0x31e
> > + MX91_PAD_ENET1_TX_CTL__GPIO4_IO6 0x31e
> > + >;
> > + };
> > +
> > + pinctrl_fec: fecgrp {
> > + fsl,pins = <
> > + MX91_PAD_ENET2_MDC__ENET2_MDC 0x57e
> > + MX91_PAD_ENET2_MDIO__ENET2_MDIO 0x57e
> > + MX91_PAD_ENET2_RD0__ENET2_RGMII_RD0 0x57e
> > + MX91_PAD_ENET2_RD1__ENET2_RGMII_RD1 0x57e
> > + MX91_PAD_ENET2_RD2__ENET2_RGMII_RD2 0x57e
> > + MX91_PAD_ENET2_RD3__ENET2_RGMII_RD3 0x57e
> > + MX91_PAD_ENET2_RXC__ENET2_RGMII_RXC 0x5fe
> > + MX91_PAD_ENET2_RX_CTL__ENET2_RGMII_RX_CTL 0x57e
> > + MX91_PAD_ENET2_TD0__ENET2_RGMII_TD0 0x57e
> > + MX91_PAD_ENET2_TD1__ENET2_RGMII_TD1 0x57e
> > + MX91_PAD_ENET2_TD2__ENET2_RGMII_TD2 0x57e
> > + MX91_PAD_ENET2_TD3__ENET2_RGMII_TD3 0x57e
> > + MX91_PAD_ENET2_TXC__ENET2_RGMII_TXC 0x5fe
> > + MX91_PAD_ENET2_TX_CTL__ENET2_RGMII_TX_CTL 0x57e
> > + >;
> > + };
> > +
> > + pinctrl_fec_sleep: fecsleepgrp {
> > + fsl,pins = <
> > + MX91_PAD_ENET2_MDC__GPIO4_IO14 0x51e
> > + MX91_PAD_ENET2_MDIO__GPIO4_IO15 0x51e
> > + MX91_PAD_ENET2_RD0__GPIO4_IO24 0x51e
> > + MX91_PAD_ENET2_RD1__GPIO4_IO25 0x51e
> > + MX91_PAD_ENET2_RD2__GPIO4_IO26 0x51e
> > + MX91_PAD_ENET2_RD3__GPIO4_IO27 0x51e
> > + MX91_PAD_ENET2_RXC__GPIO4_IO23 0x51e
> > + MX91_PAD_ENET2_RX_CTL__GPIO4_IO22 0x51e
> > + MX91_PAD_ENET2_TD0__GPIO4_IO19 0x51e
> > + MX91_PAD_ENET2_TD1__GPIO4_IO18 0x51e
> > + MX91_PAD_ENET2_TD2__GPIO4_IO17 0x51e
> > + MX91_PAD_ENET2_TD3__GPIO4_IO16 0x51e
> > + MX91_PAD_ENET2_TXC__GPIO4_IO21 0x51e
> > + MX91_PAD_ENET2_TX_CTL__GPIO4_IO20 0x51e
> > + >;
> > + };
> > +
> > + pinctrl_flexcan2: flexcan2grp {
> > + fsl,pins = <
> > + MX91_PAD_GPIO_IO25__CAN2_TX 0x139e
> > + MX91_PAD_GPIO_IO27__CAN2_RX 0x139e
> > + >;
> > + };
> > +
> > + pinctrl_flexcan2_sleep: flexcan2sleepgrp {
> > + fsl,pins = <
> > + MX91_PAD_GPIO_IO25__GPIO2_IO25 0x31e
> > + MX91_PAD_GPIO_IO27__GPIO2_IO27 0x31e
> > + >;
> > + };
> > +
> > + pinctrl_lpi2c1: lpi2c1grp {
> > + fsl,pins = <
> > + MX91_PAD_I2C1_SCL__LPI2C1_SCL 0x40000b9e
> > + MX91_PAD_I2C1_SDA__LPI2C1_SDA 0x40000b9e
> > + >;
> > + };
> > +
> > + pinctrl_lpi2c2: lpi2c2grp {
> > + fsl,pins = <
> > + MX91_PAD_I2C2_SCL__LPI2C2_SCL 0x40000b9e
> > + MX91_PAD_I2C2_SDA__LPI2C2_SDA 0x40000b9e
> > + >;
> > + };
> > +
> > + pinctrl_lpi2c3: lpi2c3grp {
> > + fsl,pins = <
> > + MX91_PAD_GPIO_IO28__LPI2C3_SDA 0x40000b9e
> > + MX91_PAD_GPIO_IO29__LPI2C3_SCL 0x40000b9e
> > + >;
> > + };
> > +
> > + pinctrl_lpspi3: lpspi3grp {
> > + fsl,pins = <
> > + MX91_PAD_GPIO_IO08__GPIO2_IO8 0x3fe
> > + MX91_PAD_GPIO_IO09__LPSPI3_SIN 0x3fe
> > + MX91_PAD_GPIO_IO10__LPSPI3_SOUT 0x3fe
> > + MX91_PAD_GPIO_IO11__LPSPI3_SCK 0x3fe
> > + >;
> > + };
> > +
> > + pinctrl_mqs1: mqs1grp {
> > + fsl,pins = <
> > + MX91_PAD_PDM_CLK__MQS1_LEFT 0x31e
> > + MX91_PAD_PDM_BIT_STREAM0__MQS1_RIGHT 0x31e
> > + >;
> > + };
> > +
> > + pinctrl_pcal6524: pcal6524grp {
> > + fsl,pins = <
> > + MX91_PAD_CCM_CLKO2__GPIO3_IO27 0x31e
> > + >;
> > + };
> > +
> > + pinctrl_reg_usdhc2_vmmc: regusdhc2vmmcgrp {
> > + fsl,pins = <
> > + MX91_PAD_SD2_RESET_B__GPIO3_IO7 0x31e
> > + >;
> > + };
> > +
> > + pinctrl_uart1: uart1grp {
> > + fsl,pins = <
> > + MX91_PAD_UART1_RXD__LPUART1_RX 0x31e
> > + MX91_PAD_UART1_TXD__LPUART1_TX 0x31e
> > + >;
> > + };
> > +
> > + pinctrl_uart5: uart5grp {
> > + fsl,pins = <
> > + MX91_PAD_DAP_TDO_TRACESWO__LPUART5_TX 0x31e
> > + MX91_PAD_DAP_TDI__LPUART5_RX 0x31e
> > + MX91_PAD_DAP_TMS_SWDIO__LPUART5_RTS_B 0x31e
> > + MX91_PAD_DAP_TCLK_SWCLK__LPUART5_CTS_B 0x31e
> > + >;
> > + };
> > +
> > + pinctrl_usdhc1: usdhc1grp {
> > + fsl,pins = <
> > + MX91_PAD_SD1_CLK__USDHC1_CLK 0x1582
> > + MX91_PAD_SD1_CMD__USDHC1_CMD 0x1382
> > + MX91_PAD_SD1_DATA0__USDHC1_DATA0 0x1382
> > + MX91_PAD_SD1_DATA1__USDHC1_DATA1 0x1382
> > + MX91_PAD_SD1_DATA2__USDHC1_DATA2 0x1382
> > + MX91_PAD_SD1_DATA3__USDHC1_DATA3 0x1382
> > + MX91_PAD_SD1_DATA4__USDHC1_DATA4 0x1382
> > + MX91_PAD_SD1_DATA5__USDHC1_DATA5 0x1382
> > + MX91_PAD_SD1_DATA6__USDHC1_DATA6 0x1382
> > + MX91_PAD_SD1_DATA7__USDHC1_DATA7 0x1382
> > + MX91_PAD_SD1_STROBE__USDHC1_STROBE 0x1582
> > + >;
> > + };
> > +
> > + pinctrl_usdhc1_100mhz: usdhc1-100mhzgrp {
> > + fsl,pins = <
> > + MX91_PAD_SD1_CLK__USDHC1_CLK 0x158e
> > + MX91_PAD_SD1_CMD__USDHC1_CMD 0x138e
> > + MX91_PAD_SD1_DATA0__USDHC1_DATA0 0x138e
> > + MX91_PAD_SD1_DATA1__USDHC1_DATA1 0x138e
> > + MX91_PAD_SD1_DATA2__USDHC1_DATA2 0x138e
> > + MX91_PAD_SD1_DATA3__USDHC1_DATA3 0x138e
> > + MX91_PAD_SD1_DATA4__USDHC1_DATA4 0x138e
> > + MX91_PAD_SD1_DATA5__USDHC1_DATA5 0x138e
> > + MX91_PAD_SD1_DATA6__USDHC1_DATA6 0x138e
> > + MX91_PAD_SD1_DATA7__USDHC1_DATA7 0x138e
> > + MX91_PAD_SD1_STROBE__USDHC1_STROBE 0x158e
> > + >;
> > + };
> > +
> > + pinctrl_usdhc1_200mhz: usdhc1-200mhzgrp {
> > + fsl,pins = <
> > + MX91_PAD_SD1_CLK__USDHC1_CLK 0x15fe
> > + MX91_PAD_SD1_CMD__USDHC1_CMD 0x13fe
> > + MX91_PAD_SD1_DATA0__USDHC1_DATA0 0x13fe
> > + MX91_PAD_SD1_DATA1__USDHC1_DATA1 0x13fe
> > + MX91_PAD_SD1_DATA2__USDHC1_DATA2 0x13fe
> > + MX91_PAD_SD1_DATA3__USDHC1_DATA3 0x13fe
> > + MX91_PAD_SD1_DATA4__USDHC1_DATA4 0x13fe
> > + MX91_PAD_SD1_DATA5__USDHC1_DATA5 0x13fe
> > + MX91_PAD_SD1_DATA6__USDHC1_DATA6 0x13fe
> > + MX91_PAD_SD1_DATA7__USDHC1_DATA7 0x13fe
> > + MX91_PAD_SD1_STROBE__USDHC1_STROBE 0x15fe
> > + >;
> > + };
> > +
> > + pinctrl_usdhc2_gpio: usdhc2gpiogrp {
> > + fsl,pins = <
> > + MX91_PAD_SD2_CD_B__GPIO3_IO0 0x31e
> > + >;
> > + };
> > +
> > + pinctrl_usdhc2_gpio_sleep: usdhc2gpiogrpsleep {
> > + fsl,pins = <
> > + MX91_PAD_SD2_CD_B__GPIO3_IO0 0x51e
> > + >;
> > + };
> > +
> > + pinctrl_usdhc2: usdhc2grp {
> > + fsl,pins = <
> > + MX91_PAD_SD2_CLK__USDHC2_CLK 0x1582
> > + MX91_PAD_SD2_CMD__USDHC2_CMD 0x1382
> > + MX91_PAD_SD2_DATA0__USDHC2_DATA0 0x1382
> > + MX91_PAD_SD2_DATA1__USDHC2_DATA1 0x1382
> > + MX91_PAD_SD2_DATA2__USDHC2_DATA2 0x1382
> > + MX91_PAD_SD2_DATA3__USDHC2_DATA3 0x1382
> > + MX91_PAD_SD2_VSELECT__USDHC2_VSELECT 0x51e
> > + >;
> > + };
> > +
> > + pinctrl_usdhc2_sleep: usdhc2grpsleep {
> > + fsl,pins = <
> > + MX91_PAD_SD2_CLK__GPIO3_IO1 0x51e
> > + MX91_PAD_SD2_CMD__GPIO3_IO2 0x51e
> > + MX91_PAD_SD2_DATA0__GPIO3_IO3 0x51e
> > + MX91_PAD_SD2_DATA1__GPIO3_IO4 0x51e
> > + MX91_PAD_SD2_DATA2__GPIO3_IO5 0x51e
> > + MX91_PAD_SD2_DATA3__GPIO3_IO6 0x51e
> > + MX91_PAD_SD2_VSELECT__GPIO3_IO19 0x51e
> > + >;
> > + };
> > +
> > + pinctrl_usdhc2_100mhz: usdhc2-100mhzgrp {
> > + fsl,pins = <
> > + MX91_PAD_SD2_CLK__USDHC2_CLK 0x158e
> > + MX91_PAD_SD2_CMD__USDHC2_CMD 0x138e
> > + MX91_PAD_SD2_DATA0__USDHC2_DATA0 0x138e
> > + MX91_PAD_SD2_DATA1__USDHC2_DATA1 0x138e
> > + MX91_PAD_SD2_DATA2__USDHC2_DATA2 0x138e
> > + MX91_PAD_SD2_DATA3__USDHC2_DATA3 0x138e
> > + MX91_PAD_SD2_VSELECT__USDHC2_VSELECT 0x51e
> > + >;
> > + };
> > +
> > + pinctrl_usdhc2_200mhz: usdhc2-200mhzgrp {
> > + fsl,pins = <
> > + MX91_PAD_SD2_CLK__USDHC2_CLK 0x15fe
> > + MX91_PAD_SD2_CMD__USDHC2_CMD 0x13fe
> > + MX91_PAD_SD2_DATA0__USDHC2_DATA0 0x13fe
> > + MX91_PAD_SD2_DATA1__USDHC2_DATA1 0x13fe
> > + MX91_PAD_SD2_DATA2__USDHC2_DATA2 0x13fe
> > + MX91_PAD_SD2_DATA3__USDHC2_DATA3 0x13fe
> > + MX91_PAD_SD2_VSELECT__USDHC2_VSELECT 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_sleep: usdhc3grpsleep {
> > + 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
> > + >;
> > + };
> > +
> > + pinctrl_usdhc3_wlan: usdhc3wlangrp {
> > + fsl,pins = <
> > + MX91_PAD_CCM_CLKO1__GPIO3_IO26 0x31e
> > + >;
> > + };
> > +
> > + 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
> > + >;
> > + };
> > +};
> >
> > --
> > 2.34.1
> >
> >
>
> Regards,
> Francesco
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