// SPDX-License-Identifier: (GPL-2.0+ OR MIT) /* * Variscite Symphony carrier board for VAR-SOM-MX91 * * Link: https://variscite.com/carrier-boards/symphony-board/ * * Copyright (C) 2026 Variscite Ltd. - https://www.variscite.com/ * */ /dts-v1/; #include #include "imx91-var-som.dtsi" /{ model = "Variscite VAR-SOM-MX91 on Symphony evaluation board"; compatible = "variscite,var-som-mx91-symphony", "variscite,var-som-mx91", "fsl,imx91"; aliases { ethernet0 = &eqos; ethernet1 = &fec; gpio0 = &gpio1; gpio1 = &gpio2; gpio2 = &gpio3; gpio3 = &gpio4; gpio4 = &pca9534; gpio5 = &pca6408; i2c0 = &lpi2c1; i2c1 = &lpi2c2; i2c2 = &lpi2c3; mmc0 = &usdhc1; mmc1 = &usdhc2; serial0 = &lpuart1; serial1 = &lpuart2; serial2 = &lpuart3; serial3 = &lpuart4; serial4 = &lpuart5; }; chosen { stdout-path = &lpuart1; }; gpio-keys { compatible = "gpio-keys"; key-back { label = "Back"; gpios = <&pca9534 1 GPIO_ACTIVE_LOW>; linux,code = ; }; key-home { label = "Home"; gpios = <&pca9534 2 GPIO_ACTIVE_LOW>; linux,code = ; }; key-menu { label = "Menu"; gpios = <&pca9534 3 GPIO_ACTIVE_LOW>; linux,code = ; }; }; gpio-leds { compatible = "gpio-leds"; led-hearthbeat { function = LED_FUNCTION_STATUS; color = ; gpios = <&pca9534 0 GPIO_ACTIVE_HIGH>; linux,default-trigger = "heartbeat"; }; }; reg_vref_1v8: regulator-adc-vref { compatible = "regulator-fixed"; regulator-name = "vref_1v8"; regulator-min-microvolt = <1800000>; regulator-max-microvolt = <1800000>; }; /* * Needed only for Symphony <= v1.5 */ reg_fec_phy: regulator-fec-phy { compatible = "regulator-fixed"; regulator-name = "fec-phy"; regulator-min-microvolt = <1800000>; regulator-max-microvolt = <1800000>; regulator-enable-ramp-delay = <20000>; gpio = <&pca9534 7 GPIO_ACTIVE_HIGH>; enable-active-high; regulator-always-on; }; reg_usdhc2_vmmc: regulator-usdhc2 { compatible = "regulator-fixed"; regulator-name = "VSD_3V3"; regulator-min-microvolt = <3300000>; regulator-max-microvolt = <3300000>; gpio = <&pca6408 6 GPIO_ACTIVE_HIGH>; off-on-delay-us = <20000>; enable-active-high; }; reserved-memory { ranges; #address-cells = <2>; #size-cells = <2>; ele_reserved: ele-reserved@87de0000 { compatible = "shared-dma-pool"; reg = <0 0x87de0000 0 0x100000>; no-map; }; linux,cma { compatible = "shared-dma-pool"; alloc-ranges = <0 0x80000000 0 0x40000000>; reusable; size = <0 0x10000000>; linux,cma-default; }; }; }; &adc1 { vref-supply = <®_vref_1v8>; status = "okay"; }; /* Use external instead of internal RTC*/ &bbnsm_rtc { status = "disabled"; }; &eqos { mdio { ethphy1: ethernet-phy@5 { compatible = "ethernet-phy-ieee802.3-c22"; reg = <5>; eee-broken-1000t; reset-gpios = <&pca9534 5 GPIO_ACTIVE_LOW>; reset-assert-us = <10000>; reset-deassert-us = <20000>; vddio-supply = <&vddio1>; leds { #address-cells = <1>; #size-cells = <0>; led@0 { reg = <0>; color = ; function = LED_FUNCTION_LAN; linux,default-trigger = "netdev"; }; led@1 { reg = <1>; color = ; function = LED_FUNCTION_LAN; linux,default-trigger = "netdev"; }; }; vddio1: vddio-regulator { regulator-min-microvolt = <1800000>; regulator-max-microvolt = <1800000>; }; }; }; }; ðphy0 { leds { #address-cells = <1>; #size-cells = <0>; led@0 { reg = <0>; color = ; function = LED_FUNCTION_LAN; linux,default-trigger = "netdev"; }; led@1 { reg = <1>; color = ; function = LED_FUNCTION_LAN; linux,default-trigger = "netdev"; }; }; }; &fec { pinctrl-names = "default", "sleep"; pinctrl-0 = <&pinctrl_fec>; pinctrl-1 = <&pinctrl_fec_sleep>; /* * The required RGMII TX and RX 2ns delays are implemented directly * in hardware via passive delay elements on the SOM PCB. * No delay configuration is needed in software via PHY driver. */ phy-mode = "rgmii"; phy-handle = <ðphy1>; phy-supply = <®_fec_phy>; status = "okay"; }; &flexcan1 { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_flexcan1>; status = "okay"; }; &lpi2c1 { clock-frequency = <400000>; pinctrl-names = "default", "sleep", "gpio"; pinctrl-0 = <&pinctrl_lpi2c1>; pinctrl-1 = <&pinctrl_lpi2c1_gpio>; pinctrl-2 = <&pinctrl_lpi2c1_gpio>; scl-gpios = <&gpio1 0 GPIO_ACTIVE_HIGH>; sda-gpios = <&gpio1 1 GPIO_ACTIVE_HIGH>; status = "okay"; pca9534: gpio@20 { compatible = "nxp,pca9534"; reg = <0x20>; gpio-controller; #gpio-cells = <2>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_pca9534>; interrupt-parent = <&gpio3>; interrupts = <26 IRQ_TYPE_EDGE_FALLING>; wakeup-source; }; pca6408: gpio@21 { compatible = "nxp,pcal6408"; reg = <0x21>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_pca6408>; gpio-controller; #gpio-cells = <2>; interrupt-controller; #interrupt-cells = <2>; interrupt-parent = <&gpio2>; interrupts = <4 IRQ_TYPE_EDGE_FALLING>; wakeup-source; tpm-enable-hog { gpio-hog; gpios = <4 GPIO_ACTIVE_HIGH>; output-high; line-name = "tpm_en"; }; /* RGB_SEL */ lvds-brg-enable-hog { gpio-hog; gpios = <7 GPIO_ACTIVE_HIGH>; output-high; line-name = "lvds_brg_en"; }; }; /* USB Type-C Controller */ ptn5150: typec@3d { compatible = "nxp,ptn5150"; reg = <0x3d>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_ptn5150>; interrupt-parent = <&gpio1>; interrupts = <10 IRQ_TYPE_NONE>; port { typec1_dr_sw: endpoint { remote-endpoint = <&usb1_drd_sw>; }; }; }; st33ktpm2xi2c: tpm@2e { compatible = "st,st33ktpm2xi2c", "tcg,tpm-tis-i2c"; reg = <0x2e>; }; /* Capacitive touch controller */ ft5x06_ts: touchscreen@38 { compatible = "edt,edt-ft5206"; reg = <0x38>; interrupt-parent = <&pca6408>; interrupts = <3 IRQ_TYPE_EDGE_FALLING>; touchscreen-size-x = <800>; touchscreen-size-y = <480>; touchscreen-inverted-x; touchscreen-inverted-y; wakeup-source; }; /* DS1337 RTC module */ rtc@68 { compatible = "dallas,ds1337"; reg = <0x68>; }; }; /* pins conflict */ &lpspi8 { status = "disabled"; }; /* Console */ &lpuart1 { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_uart1>; status = "okay"; }; &tpm4 { pinctrl-names = "default", "sleep"; pinctrl-0 = <&pinctrl_tpm4>; pinctrl-1 = <&pinctrl_tpm4_sleep>; status = "okay"; }; &usbotg1 { dr_mode = "otg"; hnp-disable; srp-disable; adp-disable; usb-role-switch; samsung,picophy-pre-emp-curr-control = <3>; samsung,picophy-dc-vol-level-adjust = <7>; status = "okay"; port { usb1_drd_sw: endpoint { remote-endpoint = <&typec1_dr_sw>; }; }; }; &usbotg2 { dr_mode = "host"; disable-over-current; status = "okay"; }; /* SD */ &usdhc2 { pinctrl-names = "default", "state_100mhz", "state_200mhz", "sleep"; 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>; bus-width = <4>; cd-gpios = <&gpio3 00 GPIO_ACTIVE_LOW>; no-mmc; no-sdio; vmmc-supply = <®_usdhc2_vmmc>; status = "okay"; }; /* Watchdog */ &wdog3 { status = "okay"; }; &iomuxc { pinctrl_fec: fecgrp { fsl,pins = < 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_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_flexcan1: flexcan1grp { fsl,pins = < MX91_PAD_PDM_CLK__CAN1_TX 0x139e MX91_PAD_PDM_BIT_STREAM0__CAN1_RX 0x139e >; }; pinctrl_lpi2c1: lpi2c1grp { fsl,pins = < MX91_PAD_I2C1_SCL__LPI2C1_SCL 0x40000b9e MX91_PAD_I2C1_SDA__LPI2C1_SDA 0x40000b9e >; }; pinctrl_lpi2c1_gpio: lpi2c1gpiogrp { fsl,pins = < MX91_PAD_I2C1_SCL__GPIO1_IO0 0x31e MX91_PAD_I2C1_SDA__GPIO1_IO1 0x31e >; }; pinctrl_pca6408: pca6408grp { fsl,pins = < MX91_PAD_GPIO_IO04__GPIO2_IO4 0x31e >; }; pinctrl_pca9534: pca9534grp { fsl,pins = < MX91_PAD_CCM_CLKO1__GPIO3_IO26 0x31e >; }; pinctrl_ptn5150: ptn5150grp { fsl,pins = < MX91_PAD_PDM_BIT_STREAM1__GPIO1_IO10 0x31e >; }; pinctrl_uart1: uart1grp { fsl,pins = < MX91_PAD_UART1_RXD__LPUART1_RX 0x31e MX91_PAD_UART1_TXD__LPUART1_TX 0x31e >; }; pinctrl_tpm4: tpm4grp { fsl,pins = < MX91_PAD_GPIO_IO05__TPM4_CH0 0x51e >; }; pinctrl_tpm4_sleep: tpm4sleepgrp { fsl,pins = < MX91_PAD_GPIO_IO05__GPIO2_IO5 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_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_usdhc2_sleep: usdhc2sleep-grp { 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_gpio: usdhc2gpiogrp { fsl,pins = < MX91_PAD_SD2_CD_B__GPIO3_IO0 0x31e >; }; pinctrl_usdhc2_gpio_sleep: usdhc2gpiosleep-grp { fsl,pins = < MX91_PAD_SD2_CD_B__GPIO3_IO0 0x51e >; }; };