162306a36Sopenharmony_ci// SPDX-License-Identifier: (GPL-2.0-or-later OR MIT) 262306a36Sopenharmony_ci/* 362306a36Sopenharmony_ci * Copyright 2020-2021 TQ-Systems GmbH 462306a36Sopenharmony_ci */ 562306a36Sopenharmony_ci 662306a36Sopenharmony_ci#include "imx8mn.dtsi" 762306a36Sopenharmony_ci 862306a36Sopenharmony_ci/ { 962306a36Sopenharmony_ci model = "TQ-Systems i.MX8MN TQMa8MxNL"; 1062306a36Sopenharmony_ci compatible = "tq,imx8mn-tqma8mqnl", "fsl,imx8mn"; 1162306a36Sopenharmony_ci 1262306a36Sopenharmony_ci memory@40000000 { 1362306a36Sopenharmony_ci device_type = "memory"; 1462306a36Sopenharmony_ci /* our minimum RAM config will be 1024 MiB */ 1562306a36Sopenharmony_ci reg = <0x00000000 0x40000000 0 0x40000000>; 1662306a36Sopenharmony_ci }; 1762306a36Sopenharmony_ci 1862306a36Sopenharmony_ci /* e-MMC IO, needed for HS modes */ 1962306a36Sopenharmony_ci reg_vcc1v8: regulator-vcc1v8 { 2062306a36Sopenharmony_ci compatible = "regulator-fixed"; 2162306a36Sopenharmony_ci regulator-name = "TQMA8MXNL_VCC1V8"; 2262306a36Sopenharmony_ci regulator-min-microvolt = <1800000>; 2362306a36Sopenharmony_ci regulator-max-microvolt = <1800000>; 2462306a36Sopenharmony_ci }; 2562306a36Sopenharmony_ci 2662306a36Sopenharmony_ci reg_vcc3v3: regulator-vcc3v3 { 2762306a36Sopenharmony_ci compatible = "regulator-fixed"; 2862306a36Sopenharmony_ci regulator-name = "TQMA8MXNL_VCC3V3"; 2962306a36Sopenharmony_ci regulator-min-microvolt = <3300000>; 3062306a36Sopenharmony_ci regulator-max-microvolt = <3300000>; 3162306a36Sopenharmony_ci }; 3262306a36Sopenharmony_ci 3362306a36Sopenharmony_ci reserved-memory { 3462306a36Sopenharmony_ci #address-cells = <2>; 3562306a36Sopenharmony_ci #size-cells = <2>; 3662306a36Sopenharmony_ci ranges; 3762306a36Sopenharmony_ci 3862306a36Sopenharmony_ci /* global autoconfigured region for contiguous allocations */ 3962306a36Sopenharmony_ci linux,cma { 4062306a36Sopenharmony_ci compatible = "shared-dma-pool"; 4162306a36Sopenharmony_ci reusable; 4262306a36Sopenharmony_ci /* 640 MiB */ 4362306a36Sopenharmony_ci size = <0 0x28000000>; 4462306a36Sopenharmony_ci /* 1024 - 128 MiB, our minimum RAM config will be 1024 MiB */ 4562306a36Sopenharmony_ci alloc-ranges = <0 0x40000000 0 0x78000000>; 4662306a36Sopenharmony_ci linux,cma-default; 4762306a36Sopenharmony_ci }; 4862306a36Sopenharmony_ci }; 4962306a36Sopenharmony_ci}; 5062306a36Sopenharmony_ci 5162306a36Sopenharmony_ci&A53_0 { 5262306a36Sopenharmony_ci cpu-supply = <&buck2_reg>; 5362306a36Sopenharmony_ci}; 5462306a36Sopenharmony_ci 5562306a36Sopenharmony_ci&flexspi { 5662306a36Sopenharmony_ci pinctrl-names = "default"; 5762306a36Sopenharmony_ci pinctrl-0 = <&pinctrl_flexspi>; 5862306a36Sopenharmony_ci status = "okay"; 5962306a36Sopenharmony_ci 6062306a36Sopenharmony_ci flash0: flash@0 { 6162306a36Sopenharmony_ci compatible = "jedec,spi-nor"; 6262306a36Sopenharmony_ci reg = <0>; 6362306a36Sopenharmony_ci #address-cells = <1>; 6462306a36Sopenharmony_ci #size-cells = <1>; 6562306a36Sopenharmony_ci spi-max-frequency = <84000000>; 6662306a36Sopenharmony_ci spi-tx-bus-width = <1>; 6762306a36Sopenharmony_ci spi-rx-bus-width = <4>; 6862306a36Sopenharmony_ci }; 6962306a36Sopenharmony_ci}; 7062306a36Sopenharmony_ci 7162306a36Sopenharmony_ci&i2c1 { 7262306a36Sopenharmony_ci clock-frequency = <100000>; 7362306a36Sopenharmony_ci pinctrl-names = "default", "gpio"; 7462306a36Sopenharmony_ci pinctrl-0 = <&pinctrl_i2c1>; 7562306a36Sopenharmony_ci pinctrl-1 = <&pinctrl_i2c1_gpio>; 7662306a36Sopenharmony_ci scl-gpios = <&gpio5 14 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; 7762306a36Sopenharmony_ci sda-gpios = <&gpio5 15 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; 7862306a36Sopenharmony_ci status = "okay"; 7962306a36Sopenharmony_ci 8062306a36Sopenharmony_ci sensor0: temperature-sensor@1b { 8162306a36Sopenharmony_ci compatible = "nxp,se97b", "jedec,jc-42.4-temp"; 8262306a36Sopenharmony_ci reg = <0x1b>; 8362306a36Sopenharmony_ci }; 8462306a36Sopenharmony_ci 8562306a36Sopenharmony_ci pca9450: pmic@25 { 8662306a36Sopenharmony_ci compatible = "nxp,pca9450a"; 8762306a36Sopenharmony_ci reg = <0x25>; 8862306a36Sopenharmony_ci 8962306a36Sopenharmony_ci /* PMIC PCA9450 PMIC_nINT GPIO1_IO08 */ 9062306a36Sopenharmony_ci pinctrl-0 = <&pinctrl_pmic>; 9162306a36Sopenharmony_ci pinctrl-names = "default"; 9262306a36Sopenharmony_ci interrupt-parent = <&gpio1>; 9362306a36Sopenharmony_ci interrupts = <8 IRQ_TYPE_LEVEL_LOW>; 9462306a36Sopenharmony_ci 9562306a36Sopenharmony_ci regulators { 9662306a36Sopenharmony_ci /* V_0V85_SOC: 0.85 .. 0.95 */ 9762306a36Sopenharmony_ci buck1_reg: BUCK1 { 9862306a36Sopenharmony_ci regulator-name = "BUCK1"; 9962306a36Sopenharmony_ci regulator-min-microvolt = <850000>; 10062306a36Sopenharmony_ci regulator-max-microvolt = <950000>; 10162306a36Sopenharmony_ci regulator-boot-on; 10262306a36Sopenharmony_ci regulator-always-on; 10362306a36Sopenharmony_ci regulator-ramp-delay = <3125>; 10462306a36Sopenharmony_ci }; 10562306a36Sopenharmony_ci 10662306a36Sopenharmony_ci /* VDD_ARM */ 10762306a36Sopenharmony_ci buck2_reg: BUCK2 { 10862306a36Sopenharmony_ci regulator-name = "BUCK2"; 10962306a36Sopenharmony_ci regulator-min-microvolt = <850000>; 11062306a36Sopenharmony_ci regulator-max-microvolt = <1000000>; 11162306a36Sopenharmony_ci regulator-boot-on; 11262306a36Sopenharmony_ci regulator-always-on; 11362306a36Sopenharmony_ci nxp,dvs-run-voltage = <950000>; 11462306a36Sopenharmony_ci nxp,dvs-standby-voltage = <850000>; 11562306a36Sopenharmony_ci regulator-ramp-delay = <3125>; 11662306a36Sopenharmony_ci }; 11762306a36Sopenharmony_ci 11862306a36Sopenharmony_ci /* V_0V85_GPU / DRAM: shall be equal to BUCK1 for i.MX8MN */ 11962306a36Sopenharmony_ci buck3_reg: BUCK3 { 12062306a36Sopenharmony_ci regulator-name = "BUCK3"; 12162306a36Sopenharmony_ci regulator-min-microvolt = <850000>; 12262306a36Sopenharmony_ci regulator-max-microvolt = <950000>; 12362306a36Sopenharmony_ci regulator-boot-on; 12462306a36Sopenharmony_ci regulator-always-on; 12562306a36Sopenharmony_ci regulator-ramp-delay = <3125>; 12662306a36Sopenharmony_ci }; 12762306a36Sopenharmony_ci 12862306a36Sopenharmony_ci /* VCC3V3 -> VMMC, ... must not be changed */ 12962306a36Sopenharmony_ci buck4_reg: BUCK4 { 13062306a36Sopenharmony_ci regulator-name = "BUCK4"; 13162306a36Sopenharmony_ci regulator-min-microvolt = <3300000>; 13262306a36Sopenharmony_ci regulator-max-microvolt = <3300000>; 13362306a36Sopenharmony_ci regulator-boot-on; 13462306a36Sopenharmony_ci regulator-always-on; 13562306a36Sopenharmony_ci }; 13662306a36Sopenharmony_ci 13762306a36Sopenharmony_ci /* V_1V8 -> VQMMC, SPI-NOR, ... must not be changed */ 13862306a36Sopenharmony_ci buck5_reg: BUCK5 { 13962306a36Sopenharmony_ci regulator-name = "BUCK5"; 14062306a36Sopenharmony_ci regulator-min-microvolt = <1800000>; 14162306a36Sopenharmony_ci regulator-max-microvolt = <1800000>; 14262306a36Sopenharmony_ci regulator-boot-on; 14362306a36Sopenharmony_ci regulator-always-on; 14462306a36Sopenharmony_ci }; 14562306a36Sopenharmony_ci 14662306a36Sopenharmony_ci /* V_1V1 -> RAM, ... must not be changed */ 14762306a36Sopenharmony_ci buck6_reg: BUCK6 { 14862306a36Sopenharmony_ci regulator-name = "BUCK6"; 14962306a36Sopenharmony_ci regulator-min-microvolt = <1100000>; 15062306a36Sopenharmony_ci regulator-max-microvolt = <1100000>; 15162306a36Sopenharmony_ci regulator-boot-on; 15262306a36Sopenharmony_ci regulator-always-on; 15362306a36Sopenharmony_ci }; 15462306a36Sopenharmony_ci 15562306a36Sopenharmony_ci /* V_1V8_SNVS */ 15662306a36Sopenharmony_ci ldo1_reg: LDO1 { 15762306a36Sopenharmony_ci regulator-name = "LDO1"; 15862306a36Sopenharmony_ci regulator-min-microvolt = <1800000>; 15962306a36Sopenharmony_ci regulator-max-microvolt = <1800000>; 16062306a36Sopenharmony_ci regulator-boot-on; 16162306a36Sopenharmony_ci regulator-always-on; 16262306a36Sopenharmony_ci }; 16362306a36Sopenharmony_ci 16462306a36Sopenharmony_ci /* V_0V8_SNVS */ 16562306a36Sopenharmony_ci ldo2_reg: LDO2 { 16662306a36Sopenharmony_ci regulator-name = "LDO2"; 16762306a36Sopenharmony_ci regulator-min-microvolt = <800000>; 16862306a36Sopenharmony_ci regulator-max-microvolt = <850000>; 16962306a36Sopenharmony_ci regulator-boot-on; 17062306a36Sopenharmony_ci regulator-always-on; 17162306a36Sopenharmony_ci }; 17262306a36Sopenharmony_ci 17362306a36Sopenharmony_ci /* V_1V8_ANA */ 17462306a36Sopenharmony_ci ldo3_reg: LDO3 { 17562306a36Sopenharmony_ci regulator-name = "LDO3"; 17662306a36Sopenharmony_ci regulator-min-microvolt = <1800000>; 17762306a36Sopenharmony_ci regulator-max-microvolt = <1800000>; 17862306a36Sopenharmony_ci regulator-boot-on; 17962306a36Sopenharmony_ci regulator-always-on; 18062306a36Sopenharmony_ci }; 18162306a36Sopenharmony_ci 18262306a36Sopenharmony_ci /* V_0V9_MIPI */ 18362306a36Sopenharmony_ci ldo4_reg: LDO4 { 18462306a36Sopenharmony_ci regulator-name = "LDO4"; 18562306a36Sopenharmony_ci regulator-min-microvolt = <900000>; 18662306a36Sopenharmony_ci regulator-max-microvolt = <900000>; 18762306a36Sopenharmony_ci regulator-boot-on; 18862306a36Sopenharmony_ci regulator-always-on; 18962306a36Sopenharmony_ci }; 19062306a36Sopenharmony_ci 19162306a36Sopenharmony_ci /* VCC SD IO - switched using SD2 VSELECT */ 19262306a36Sopenharmony_ci ldo5_reg: LDO5 { 19362306a36Sopenharmony_ci regulator-name = "LDO5"; 19462306a36Sopenharmony_ci regulator-min-microvolt = <1800000>; 19562306a36Sopenharmony_ci regulator-max-microvolt = <3300000>; 19662306a36Sopenharmony_ci }; 19762306a36Sopenharmony_ci }; 19862306a36Sopenharmony_ci }; 19962306a36Sopenharmony_ci 20062306a36Sopenharmony_ci pcf85063: rtc@51 { 20162306a36Sopenharmony_ci compatible = "nxp,pcf85063a"; 20262306a36Sopenharmony_ci reg = <0x51>; 20362306a36Sopenharmony_ci quartz-load-femtofarads = <7000>; 20462306a36Sopenharmony_ci }; 20562306a36Sopenharmony_ci 20662306a36Sopenharmony_ci eeprom1: eeprom@53 { 20762306a36Sopenharmony_ci compatible = "nxp,se97b", "atmel,24c02"; 20862306a36Sopenharmony_ci read-only; 20962306a36Sopenharmony_ci reg = <0x53>; 21062306a36Sopenharmony_ci pagesize = <16>; 21162306a36Sopenharmony_ci vcc-supply = <®_vcc3v3>; 21262306a36Sopenharmony_ci }; 21362306a36Sopenharmony_ci 21462306a36Sopenharmony_ci eeprom0: eeprom@57 { 21562306a36Sopenharmony_ci compatible = "atmel,24c64"; 21662306a36Sopenharmony_ci reg = <0x57>; 21762306a36Sopenharmony_ci pagesize = <32>; 21862306a36Sopenharmony_ci vcc-supply = <®_vcc3v3>; 21962306a36Sopenharmony_ci }; 22062306a36Sopenharmony_ci}; 22162306a36Sopenharmony_ci 22262306a36Sopenharmony_ci&usdhc3 { 22362306a36Sopenharmony_ci pinctrl-names = "default", "state_100mhz", "state_200mhz"; 22462306a36Sopenharmony_ci pinctrl-0 = <&pinctrl_usdhc3>; 22562306a36Sopenharmony_ci pinctrl-1 = <&pinctrl_usdhc3_100mhz>; 22662306a36Sopenharmony_ci pinctrl-2 = <&pinctrl_usdhc3_200mhz>; 22762306a36Sopenharmony_ci bus-width = <8>; 22862306a36Sopenharmony_ci non-removable; 22962306a36Sopenharmony_ci no-sd; 23062306a36Sopenharmony_ci no-sdio; 23162306a36Sopenharmony_ci vmmc-supply = <®_vcc3v3>; 23262306a36Sopenharmony_ci vqmmc-supply = <®_vcc1v8>; 23362306a36Sopenharmony_ci status = "okay"; 23462306a36Sopenharmony_ci}; 23562306a36Sopenharmony_ci 23662306a36Sopenharmony_ci/* 23762306a36Sopenharmony_ci * Attention: 23862306a36Sopenharmony_ci * wdog reset is routed to PMIC, PMIC must be preconfigured to force POR 23962306a36Sopenharmony_ci * without LDO for SNVS. GPIO1_IO02 must not be used as GPIO. 24062306a36Sopenharmony_ci */ 24162306a36Sopenharmony_ci&wdog1 { 24262306a36Sopenharmony_ci pinctrl-names = "default"; 24362306a36Sopenharmony_ci pinctrl-0 = <&pinctrl_wdog>; 24462306a36Sopenharmony_ci fsl,ext-reset-output; 24562306a36Sopenharmony_ci status = "okay"; 24662306a36Sopenharmony_ci}; 24762306a36Sopenharmony_ci 24862306a36Sopenharmony_ci&iomuxc { 24962306a36Sopenharmony_ci pinctrl_flexspi: flexspigrp { 25062306a36Sopenharmony_ci fsl,pins = <MX8MN_IOMUXC_NAND_ALE_QSPI_A_SCLK 0x84>, 25162306a36Sopenharmony_ci <MX8MN_IOMUXC_NAND_CE0_B_QSPI_A_SS0_B 0x84>, 25262306a36Sopenharmony_ci <MX8MN_IOMUXC_NAND_DATA00_QSPI_A_DATA0 0x84>, 25362306a36Sopenharmony_ci <MX8MN_IOMUXC_NAND_DATA01_QSPI_A_DATA1 0x84>, 25462306a36Sopenharmony_ci <MX8MN_IOMUXC_NAND_DATA02_QSPI_A_DATA2 0x84>, 25562306a36Sopenharmony_ci <MX8MN_IOMUXC_NAND_DATA03_QSPI_A_DATA3 0x84>; 25662306a36Sopenharmony_ci }; 25762306a36Sopenharmony_ci 25862306a36Sopenharmony_ci pinctrl_i2c1: i2c1grp { 25962306a36Sopenharmony_ci fsl,pins = <MX8MN_IOMUXC_I2C1_SCL_I2C1_SCL 0x400001c4>, 26062306a36Sopenharmony_ci <MX8MN_IOMUXC_I2C1_SDA_I2C1_SDA 0x400001c4>; 26162306a36Sopenharmony_ci }; 26262306a36Sopenharmony_ci 26362306a36Sopenharmony_ci pinctrl_i2c1_gpio: i2c1gpiogrp { 26462306a36Sopenharmony_ci fsl,pins = <MX8MN_IOMUXC_I2C1_SCL_GPIO5_IO14 0x400001c4>, 26562306a36Sopenharmony_ci <MX8MN_IOMUXC_I2C1_SDA_GPIO5_IO15 0x400001c4>; 26662306a36Sopenharmony_ci }; 26762306a36Sopenharmony_ci 26862306a36Sopenharmony_ci pinctrl_pmic: pmicgrp { 26962306a36Sopenharmony_ci fsl,pins = <MX8MN_IOMUXC_GPIO1_IO08_GPIO1_IO8 0x84>; 27062306a36Sopenharmony_ci }; 27162306a36Sopenharmony_ci 27262306a36Sopenharmony_ci pinctrl_reg_usdhc2_vmmc: regusdhc2vmmcgrp { 27362306a36Sopenharmony_ci fsl,pins = <MX8MN_IOMUXC_SD2_RESET_B_GPIO2_IO19 0x84>; 27462306a36Sopenharmony_ci }; 27562306a36Sopenharmony_ci 27662306a36Sopenharmony_ci pinctrl_usdhc3: usdhc3grp { 27762306a36Sopenharmony_ci fsl,pins = <MX8MN_IOMUXC_NAND_WE_B_USDHC3_CLK 0x1d4>, 27862306a36Sopenharmony_ci <MX8MN_IOMUXC_NAND_WP_B_USDHC3_CMD 0x1d2>, 27962306a36Sopenharmony_ci <MX8MN_IOMUXC_NAND_DATA04_USDHC3_DATA0 0x1d4>, 28062306a36Sopenharmony_ci <MX8MN_IOMUXC_NAND_DATA05_USDHC3_DATA1 0x1d4>, 28162306a36Sopenharmony_ci <MX8MN_IOMUXC_NAND_DATA06_USDHC3_DATA2 0x1d4>, 28262306a36Sopenharmony_ci <MX8MN_IOMUXC_NAND_DATA07_USDHC3_DATA3 0x1d4>, 28362306a36Sopenharmony_ci <MX8MN_IOMUXC_NAND_RE_B_USDHC3_DATA4 0x1d4>, 28462306a36Sopenharmony_ci <MX8MN_IOMUXC_NAND_CE2_B_USDHC3_DATA5 0x1d4>, 28562306a36Sopenharmony_ci <MX8MN_IOMUXC_NAND_CE3_B_USDHC3_DATA6 0x1d4>, 28662306a36Sopenharmony_ci <MX8MN_IOMUXC_NAND_CLE_USDHC3_DATA7 0x1d4>, 28762306a36Sopenharmony_ci <MX8MN_IOMUXC_NAND_CE1_B_USDHC3_STROBE 0x84>, 28862306a36Sopenharmony_ci <MX8MN_IOMUXC_NAND_READY_B_USDHC3_RESET_B 0x84>; 28962306a36Sopenharmony_ci }; 29062306a36Sopenharmony_ci 29162306a36Sopenharmony_ci pinctrl_usdhc3_100mhz: usdhc3-100mhzgrp { 29262306a36Sopenharmony_ci fsl,pins = <MX8MN_IOMUXC_NAND_WE_B_USDHC3_CLK 0x1d2>, 29362306a36Sopenharmony_ci <MX8MN_IOMUXC_NAND_WP_B_USDHC3_CMD 0x1d2>, 29462306a36Sopenharmony_ci <MX8MN_IOMUXC_NAND_DATA04_USDHC3_DATA0 0x1d4>, 29562306a36Sopenharmony_ci <MX8MN_IOMUXC_NAND_DATA05_USDHC3_DATA1 0x1d4>, 29662306a36Sopenharmony_ci <MX8MN_IOMUXC_NAND_DATA06_USDHC3_DATA2 0x1d4>, 29762306a36Sopenharmony_ci <MX8MN_IOMUXC_NAND_DATA07_USDHC3_DATA3 0x1d4>, 29862306a36Sopenharmony_ci <MX8MN_IOMUXC_NAND_RE_B_USDHC3_DATA4 0x1d4>, 29962306a36Sopenharmony_ci <MX8MN_IOMUXC_NAND_CE2_B_USDHC3_DATA5 0x1d4>, 30062306a36Sopenharmony_ci <MX8MN_IOMUXC_NAND_CE3_B_USDHC3_DATA6 0x1d4>, 30162306a36Sopenharmony_ci <MX8MN_IOMUXC_NAND_CLE_USDHC3_DATA7 0x1d4>, 30262306a36Sopenharmony_ci <MX8MN_IOMUXC_NAND_CE1_B_USDHC3_STROBE 0x84>, 30362306a36Sopenharmony_ci <MX8MN_IOMUXC_NAND_READY_B_USDHC3_RESET_B 0x84>; 30462306a36Sopenharmony_ci }; 30562306a36Sopenharmony_ci 30662306a36Sopenharmony_ci pinctrl_usdhc3_200mhz: usdhc3-200mhzgrp { 30762306a36Sopenharmony_ci fsl,pins = <MX8MN_IOMUXC_NAND_WE_B_USDHC3_CLK 0x1d6>, 30862306a36Sopenharmony_ci <MX8MN_IOMUXC_NAND_WP_B_USDHC3_CMD 0x1d2>, 30962306a36Sopenharmony_ci <MX8MN_IOMUXC_NAND_DATA04_USDHC3_DATA0 0x1d4>, 31062306a36Sopenharmony_ci <MX8MN_IOMUXC_NAND_DATA05_USDHC3_DATA1 0x1d4>, 31162306a36Sopenharmony_ci <MX8MN_IOMUXC_NAND_DATA06_USDHC3_DATA2 0x1d4>, 31262306a36Sopenharmony_ci <MX8MN_IOMUXC_NAND_DATA07_USDHC3_DATA3 0x1d4>, 31362306a36Sopenharmony_ci <MX8MN_IOMUXC_NAND_RE_B_USDHC3_DATA4 0x1d4>, 31462306a36Sopenharmony_ci <MX8MN_IOMUXC_NAND_CE2_B_USDHC3_DATA5 0x1d4>, 31562306a36Sopenharmony_ci <MX8MN_IOMUXC_NAND_CE3_B_USDHC3_DATA6 0x1d4>, 31662306a36Sopenharmony_ci <MX8MN_IOMUXC_NAND_CLE_USDHC3_DATA7 0x1d4>, 31762306a36Sopenharmony_ci <MX8MN_IOMUXC_NAND_CE1_B_USDHC3_STROBE 0x84>, 31862306a36Sopenharmony_ci <MX8MN_IOMUXC_NAND_READY_B_USDHC3_RESET_B 0x84>; 31962306a36Sopenharmony_ci }; 32062306a36Sopenharmony_ci 32162306a36Sopenharmony_ci pinctrl_wdog: wdoggrp { 32262306a36Sopenharmony_ci fsl,pins = <MX8MN_IOMUXC_GPIO1_IO02_WDOG1_WDOG_B 0x84>; 32362306a36Sopenharmony_ci }; 32462306a36Sopenharmony_ci}; 325