Linux-6.18.2/arch/arm/boot/dts/nxp/imx/imx6ul-var-som.dtsi

// SPDX-License-Identifier: GPL-2.0+
/*
 * Support for Variscite VAR-SOM-MX6UL Module
 *
 * Copyright 2019 Variscite Ltd.
 * Copyright 2025 Bootlin
 */

/dts-v1/;

#include "imx6ul.dtsi"
#include <dt-bindings/clock/imx6ul-clock.h>
#include <dt-bindings/gpio/gpio.h>

/ {
	model = "Variscite VAR-SOM-MX6UL module";
	compatible = "variscite,var-som-imx6ul", "fsl,imx6ul";

	memory@80000000 {
		device_type = "memory";
		reg = <0x80000000 0x20000000>;
	};

	reg_gpio_dvfs: reg-gpio-dvfs {
		compatible = "regulator-gpio";
		regulator-min-microvolt = <1300000>;
		regulator-max-microvolt = <1400000>;
		regulator-name = "gpio_dvfs";
		regulator-type = "voltage";
		gpios = <&gpio4 13 GPIO_ACTIVE_HIGH>;
		states = <1300000 0x1
			  1400000 0x0>;
	};

	rmii_ref_clk: rmii-ref-clk {
		compatible = "fixed-clock";
		#clock-cells = <0>;
		clock-frequency = <25000000>;
		clock-output-names = "rmii-ref";
	};
};

&clks {
	assigned-clocks = <&clks IMX6UL_CLK_PLL4_AUDIO_DIV>;
	assigned-clock-rates = <786432000>;
};

&cpu0 {
	dc-supply = <&reg_gpio_dvfs>;
};

&fec1 {
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_enet1>, <&pinctrl_enet1_gpio>, <&pinctrl_enet1_mdio>;
	phy-mode = "rmii";
	phy-handle = <&ethphy0>;
	status = "okay";

	mdio {
		#address-cells = <1>;
		#size-cells = <0>;

		ethphy0: ethernet-phy@1 {
			compatible = "ethernet-phy-ieee802.3-c22";
			reg = <1>;
			clocks = <&rmii_ref_clk>;
			clock-names = "rmii-ref";
			reset-gpios = <&gpio5 0 GPIO_ACTIVE_LOW>;
			reset-assert-us = <100000>;
			micrel,led-mode = <1>;
			micrel,rmii-reference-clock-select-25-mhz = <1>;
		};
	};
};

&iomuxc {
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_hog>;

	pinctrl_enet1: enet1grp {
		fsl,pins = <
			MX6UL_PAD_ENET1_RX_EN__ENET1_RX_EN	0x1b0b0
			MX6UL_PAD_ENET1_RX_ER__ENET1_RX_ER	0x1b0b0
			MX6UL_PAD_ENET1_RX_DATA0__ENET1_RDATA00	0x1b0b0
			MX6UL_PAD_ENET1_RX_DATA1__ENET1_RDATA01	0x1b0b0
			MX6UL_PAD_ENET1_TX_EN__ENET1_TX_EN	0x1b0b0
			MX6UL_PAD_ENET1_TX_DATA0__ENET1_TDATA00	0x1b0b0
			MX6UL_PAD_ENET1_TX_DATA1__ENET1_TDATA01	0x1b0b0
			MX6UL_PAD_ENET1_TX_CLK__ENET1_REF_CLK1	0x4001b031
		>;
	};

	pinctrl_enet1_gpio: enet1-gpiogrp {
		fsl,pins = <
			MX6UL_PAD_SNVS_TAMPER0__GPIO5_IO00	0x1b0b0 /* fec1 reset */
		>;
	};

	pinctrl_enet1_mdio: enet1-mdiogrp {
		fsl,pins = <
			MX6UL_PAD_GPIO1_IO06__ENET1_MDIO	0x1b0b0
			MX6UL_PAD_GPIO1_IO07__ENET1_MDC		0x1b0b0
		>;
	};

	pinctrl_hog: hoggrp {
		fsl,pins = <
			MX6UL_PAD_SNVS_TAMPER4__GPIO5_IO04	0x1b0b0	/* BT Enable */
			MX6UL_PAD_SNVS_TAMPER6__GPIO5_IO06	0x03029	/* WLAN Enable */
		>;
	};

	pinctrl_sai2: sai2grp {
		fsl,pins = <
			MX6UL_PAD_JTAG_TDI__SAI2_TX_BCLK	0x17088
			MX6UL_PAD_JTAG_TDO__SAI2_TX_SYNC	0x17088
			MX6UL_PAD_JTAG_TRST_B__SAI2_TX_DATA	0x11088
			MX6UL_PAD_JTAG_TCK__SAI2_RX_DATA	0x11088
			MX6UL_PAD_JTAG_TMS__SAI2_MCLK		0x17088
		>;
	};

	pinctrl_tsc: tscgrp {
		fsl,pins = <
			MX6UL_PAD_GPIO1_IO01__GPIO1_IO01	0xb0
			MX6UL_PAD_GPIO1_IO02__GPIO1_IO02	0xb0
			MX6UL_PAD_GPIO1_IO03__GPIO1_IO03	0xb0
			MX6UL_PAD_GPIO1_IO04__GPIO1_IO04	0xb0
		>;
	};

	pinctrl_uart2: uart2grp {
		fsl,pins = <
			MX6UL_PAD_UART2_TX_DATA__UART2_DCE_TX	0x1b0b1
			MX6UL_PAD_UART2_RX_DATA__UART2_DCE_RX	0x1b0b1
			MX6UL_PAD_UART2_CTS_B__UART2_DCE_CTS	0x1b0b1
			MX6UL_PAD_UART2_RTS_B__UART2_DCE_RTS	0x1b0b1
		>;
	};

	pinctrl_usdhc2: usdhc2grp {
		fsl,pins = <
			MX6UL_PAD_NAND_RE_B__USDHC2_CLK		0x10069
			MX6UL_PAD_NAND_WE_B__USDHC2_CMD		0x17059
			MX6UL_PAD_NAND_DATA00__USDHC2_DATA0	0x17059
			MX6UL_PAD_NAND_DATA01__USDHC2_DATA1	0x17059
			MX6UL_PAD_NAND_DATA02__USDHC2_DATA2	0x17059
			MX6UL_PAD_NAND_DATA03__USDHC2_DATA3	0x17059
			MX6UL_PAD_NAND_DATA04__USDHC2_DATA4	0x17059
			MX6UL_PAD_NAND_DATA05__USDHC2_DATA5	0x17059
			MX6UL_PAD_NAND_DATA06__USDHC2_DATA6	0x17059
			MX6UL_PAD_NAND_DATA07__USDHC2_DATA7	0x17059
		>;
	};

	pinctrl_usdhc2_100mhz: usdhc2-100mhzgrp {
		fsl,pins = <
			MX6UL_PAD_NAND_RE_B__USDHC2_CLK		0x100b9
			MX6UL_PAD_NAND_WE_B__USDHC2_CMD		0x170b9
			MX6UL_PAD_NAND_DATA00__USDHC2_DATA0	0x170b9
			MX6UL_PAD_NAND_DATA01__USDHC2_DATA1	0x170b9
			MX6UL_PAD_NAND_DATA02__USDHC2_DATA2	0x170b9
			MX6UL_PAD_NAND_DATA03__USDHC2_DATA3	0x170b9
			MX6UL_PAD_NAND_DATA04__USDHC2_DATA4	0x170b9
			MX6UL_PAD_NAND_DATA05__USDHC2_DATA5	0x170b9
			MX6UL_PAD_NAND_DATA06__USDHC2_DATA6	0x170b9
			MX6UL_PAD_NAND_DATA07__USDHC2_DATA7	0x170b9
		>;
	};

	pinctrl_usdhc2_200mhz: usdhc2-200mhzgrp {
		fsl,pins = <
			MX6UL_PAD_NAND_RE_B__USDHC2_CLK		0x100f9
			MX6UL_PAD_NAND_WE_B__USDHC2_CMD		0x170f9
			MX6UL_PAD_NAND_DATA00__USDHC2_DATA0	0x170f9
			MX6UL_PAD_NAND_DATA01__USDHC2_DATA1	0x170f9
			MX6UL_PAD_NAND_DATA02__USDHC2_DATA2	0x170f9
			MX6UL_PAD_NAND_DATA03__USDHC2_DATA3	0x170f9
			MX6UL_PAD_NAND_DATA04__USDHC2_DATA4	0x170f9
			MX6UL_PAD_NAND_DATA05__USDHC2_DATA5	0x170f9
			MX6UL_PAD_NAND_DATA06__USDHC2_DATA6	0x170f9
			MX6UL_PAD_NAND_DATA07__USDHC2_DATA7	0x170f9
		>;
	};
};

&pxp {
	status = "okay";
};

&sai2 {
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_sai2>;
	assigned-clocks = <&clks IMX6UL_CLK_SAI2_SEL>,
			  <&clks IMX6UL_CLK_SAI2>;
	assigned-clock-parents = <&clks IMX6UL_CLK_PLL4_AUDIO_DIV>;
	assigned-clock-rates = <0>, <12288000>;
	fsl,sai-mclk-direction-output;
	status = "okay";
};

&snvs_poweroff {
	status = "okay";
};

&tsc {
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_tsc>;
	xnur-gpios = <&gpio1 3 GPIO_ACTIVE_LOW>;
	measure-delay-time = <0xffff>;
	pre-charge-time = <0xfff>;
	status = "okay";
};

&uart2 {
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_uart2>;
	uart-has-rtscts;
	status = "okay";
};

&usdhc2 {
	pinctrl-names = "default", "state_100mhz", "state_200mhz";
	pinctrl-0 = <&pinctrl_usdhc2>;
	pinctrl-1 = <&pinctrl_usdhc2_100mhz>;
	pinctrl-2 = <&pinctrl_usdhc2_200mhz>;
	bus-width = <8>;
	no-1-8-v;
	non-removable;
	keep-power-in-suspend;
	wakeup-source;
	status = "okay";
};