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+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Support for Variscite VAR-SOM-MX6 Module
+ *
+ * Copyright 2011 Linaro Ltd.
+ * Copyright 2012 Freescale Semiconductor, Inc.
+ * Copyright (C) 2014-2016 Variscite, Ltd.
+ * Author: Donio Ron <ron.d@variscite.com>
+ * Copyright 2022 Bootlin
+ */
+
+/dts-v1/;
+
+#include "imx6q.dtsi"
+#include <dt-bindings/clock/imx6qdl-clock.h>
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/sound/fsl-imx-audmux.h>
+
+/ {
+ model = "Variscite VAR-SOM-MX6 module";
+ compatible = "variscite,var-som-imx6q", "fsl,imx6q";
+
+ chosen {
+ stdout-path = &uart1;
+ };
+
+ memory@10000000 {
+ device_type = "memory";
+ reg = <0x10000000 0x40000000>;
+ };
+
+ reg_usb_otg_vbus: regulator-usb-otg-vbus {
+ compatible = "regulator-fixed";
+ regulator-name = "usb_otg_vbus";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ };
+
+ reg_usb_h1_vbus: regulator-usb-h1-vbud {
+ compatible = "regulator-fixed";
+ regulator-name = "usb_h1_vbus";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ };
+
+ reg_1p8v: regulator-1p8v {
+ compatible = "regulator-fixed";
+ regulator-name = "1P8V";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ };
+
+ reg_3p3v: regulator-3p3v {
+ compatible = "regulator-fixed";
+ regulator-name = "3P3V";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
+
+ reg_wl18xx_vmmc: regulator-wl18xx {
+ compatible = "regulator-fixed";
+ regulator-name = "vwl1807";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ gpio = <&gpio7 8 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ startup-delay-us = <70000>;
+ };
+
+ sound: sound {
+ compatible = "simple-audio-card";
+ simple-audio-card,name = "var-som-audio";
+ simple-audio-card,format = "i2s";
+ simple-audio-card,bitclock-master = <&sound_codec>;
+ simple-audio-card,frame-master = <&sound_codec>;
+ simple-audio-card,widgets = "Headphone", "Headphone Jack",
+ "Line", "Line In", "Microphone", "Mic Jack";
+ simple-audio-card,routing = "Headphone Jack", "HPLOUT",
+ "Headphone Jack", "HPROUT",
+ "LINE1L", "Line In",
+ "LINE1R", "Line In";
+
+ sound_cpu: simple-audio-card,cpu {
+ sound-dai = <&ssi2>;
+ };
+
+ sound_codec: simple-audio-card,codec {
+ sound-dai = <&tlv320aic3106>;
+ clocks = <&clks IMX6QDL_CLK_CKO>;
+ };
+ };
+
+ rfkill {
+ compatible = "rfkill-gpio";
+ name = "rfkill";
+ radio-type = "bluetooth";
+ shutdown-gpios = <&gpio6 18 GPIO_ACTIVE_HIGH>;
+ };
+};
+
+&audmux {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_audmux>;
+ status = "okay";
+
+ mux-ssi2 {
+ fsl,audmux-port = <1>;
+ fsl,port-config = <
+ (IMX_AUDMUX_V2_PTCR_SYN |
+ IMX_AUDMUX_V2_PTCR_TFSDIR |
+ IMX_AUDMUX_V2_PTCR_TFSEL(2) |
+ IMX_AUDMUX_V2_PTCR_TCLKDIR |
+ IMX_AUDMUX_V2_PTCR_TCSEL(2))
+ IMX_AUDMUX_V2_PDCR_RXDSEL(2)
+ >;
+ };
+
+ mux-aud3 {
+ fsl,audmux-port = <2>;
+ fsl,port-config = <
+ IMX_AUDMUX_V2_PTCR_SYN
+ IMX_AUDMUX_V2_PDCR_RXDSEL(1)
+ >;
+ };
+};
+
+&ecspi3 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_ecspi3>;
+ cs-gpios = <&gpio4 24 GPIO_ACTIVE_LOW>;
+ status = "okay";
+};
+
+&fec {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_enet>;
+ phy-mode = "rgmii";
+ phy-handle = <&rgmii_phy>;
+ status = "okay";
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ rgmii_phy: ethernet-phy@7 {
+ reg = <7>;
+ reset-gpios = <&gpio1 25 GPIO_ACTIVE_LOW>;
+ reset-assert-us = <10000>;
+ };
+ };
+};
+
+&gpmi {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_gpmi_nand>;
+ status = "okay";
+};
+
+&i2c2 {
+ clock-frequency = <100000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c2>;
+ status = "okay";
+
+ pmic@8 {
+ compatible = "fsl,pfuze100";
+ reg = <0x08>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_pmic>;
+
+ regulators {
+ sw1a_reg: sw1ab {
+ regulator-min-microvolt = <300000>;
+ regulator-max-microvolt = <1875000>;
+ regulator-boot-on;
+ regulator-always-on;
+ regulator-ramp-delay = <6250>;
+ };
+
+ sw1c_reg: sw1c {
+ regulator-min-microvolt = <300000>;
+ regulator-max-microvolt = <1875000>;
+ regulator-boot-on;
+ regulator-always-on;
+ regulator-ramp-delay = <6250>;
+ };
+
+ sw2_reg: sw2 {
+ regulator-min-microvolt = <800000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ sw3a_reg: sw3a {
+ regulator-min-microvolt = <800000>;
+ regulator-max-microvolt = <3950000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ sw3b_reg: sw3b {
+ regulator-min-microvolt = <800000>;
+ regulator-max-microvolt = <3950000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ sw4_reg: sw4 {
+ regulator-min-microvolt = <800000>;
+ regulator-max-microvolt = <3950000>;
+ };
+
+ snvs_reg: vsnvs {
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <3000000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ vref_reg: vrefddr {
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ vgen1_reg: vgen1 {
+ regulator-min-microvolt = <800000>;
+ regulator-max-microvolt = <1550000>;
+ };
+
+ vgen2_reg: vgen2 {
+ regulator-min-microvolt = <800000>;
+ regulator-max-microvolt = <1550000>;
+ };
+
+ vgen3_reg: vgen3 {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ vgen4_reg: vgen4 {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ vgen5_reg: vgen5 {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ vgen6_reg: vgen6 {
+ regulator-min-microvolt = <2800000>;
+ regulator-max-microvolt = <2800000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+ };
+ };
+
+ tlv320aic3106: audio-codec@1b {
+ compatible = "ti,tlv320aic3106";
+ reg = <0x1b>;
+ #sound-dai-cells = <0>;
+ DRVDD-supply = <®_3p3v>;
+ AVDD-supply = <®_3p3v>;
+ IOVDD-supply = <®_3p3v>;
+ DVDD-supply = <®_1p8v>;
+ ai3x-ocmv = <0>;
+ reset-gpios = <&gpio4 5 GPIO_ACTIVE_LOW>;
+ ai3x-gpio-func = <
+ 0 /* AIC3X_GPIO1_FUNC_DISABLED */
+ 5 /* AIC3X_GPIO2_FUNC_DIGITAL_MIC_INPUT */
+ >;
+ };
+};
+
+&iomuxc {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_hog>;
+
+ pinctrl_audmux: audmuxgrp {
+ fsl,pins = <
+ MX6QDL_PAD_CSI0_DAT7__AUD3_RXD 0x130b0
+ MX6QDL_PAD_CSI0_DAT4__AUD3_TXC 0x130b0
+ MX6QDL_PAD_CSI0_DAT5__AUD3_TXD 0x110b0
+ MX6QDL_PAD_CSI0_DAT6__AUD3_TXFS 0x130b0
+ /* Audio Clock */
+ MX6QDL_PAD_GPIO_0__CCM_CLKO1 0x130b0
+ >;
+ };
+
+ pinctrl_bt: btgrp {
+ fsl,pins = <
+ /* Bluetooth/wifi enable */
+ MX6QDL_PAD_SD3_DAT6__GPIO6_IO18 0x1b0b1
+ /* Wifi Slow Clock */
+ MX6QDL_PAD_ENET_RXD0__OSC32K_32K_OUT 0x000b0
+ >;
+ };
+
+ pinctrl_ecspi3: ecspi3grp {
+ fsl,pins = <
+ MX6QDL_PAD_DISP0_DAT2__ECSPI3_MISO 0x100b1
+ MX6QDL_PAD_DISP0_DAT1__ECSPI3_MOSI 0x100b1
+ MX6QDL_PAD_DISP0_DAT0__ECSPI3_SCLK 0x100b1
+ >;
+ };
+
+ pinctrl_enet: enetgrp {
+ fsl,pins = <
+ MX6QDL_PAD_ENET_MDIO__ENET_MDIO 0x1b0b0
+ MX6QDL_PAD_ENET_MDC__ENET_MDC 0x1b0b0
+ MX6QDL_PAD_RGMII_TXC__RGMII_TXC 0x1b0b0
+ MX6QDL_PAD_RGMII_TD0__RGMII_TD0 0x1b0b0
+ MX6QDL_PAD_RGMII_TD1__RGMII_TD1 0x1b0b0
+ MX6QDL_PAD_RGMII_TD2__RGMII_TD2 0x1b0b0
+ MX6QDL_PAD_RGMII_TD3__RGMII_TD3 0x1b0b0
+ MX6QDL_PAD_RGMII_TX_CTL__RGMII_TX_CTL 0x1b0b0
+ MX6QDL_PAD_ENET_REF_CLK__ENET_TX_CLK 0x1b0b0
+ MX6QDL_PAD_RGMII_RXC__RGMII_RXC 0x1b0b0
+ MX6QDL_PAD_RGMII_RD0__RGMII_RD0 0x1b0b0
+ MX6QDL_PAD_RGMII_RD1__RGMII_RD1 0x1b0b0
+ MX6QDL_PAD_RGMII_RD2__RGMII_RD2 0x1b0b0
+ MX6QDL_PAD_RGMII_RD3__RGMII_RD3 0x1b0b0
+ MX6QDL_PAD_RGMII_RX_CTL__RGMII_RX_CTL 0x1b0b0
+ >;
+ };
+
+ pinctrl_enet_irq: enetirqgrp {
+ fsl,pins = <
+ MX6QDL_PAD_GPIO_6__ENET_IRQ 0x000b1
+ >;
+ };
+
+ pinctrl_gpmi_nand: gpminandgrp {
+ fsl,pins = <
+ MX6QDL_PAD_NANDF_CLE__NAND_CLE 0xb0b1
+ MX6QDL_PAD_NANDF_ALE__NAND_ALE 0xb0b1
+ MX6QDL_PAD_NANDF_CS0__NAND_CE0_B 0xb0b1
+ MX6QDL_PAD_NANDF_CS1__NAND_CE1_B 0xb0b1
+ MX6QDL_PAD_NANDF_RB0__NAND_READY_B 0xb0b1
+ MX6QDL_PAD_NANDF_D0__NAND_DATA00 0xb0b1
+ MX6QDL_PAD_NANDF_D1__NAND_DATA01 0xb0b1
+ MX6QDL_PAD_NANDF_D2__NAND_DATA02 0xb0b1
+ MX6QDL_PAD_NANDF_D3__NAND_DATA03 0xb0b1
+ MX6QDL_PAD_NANDF_D4__NAND_DATA04 0xb0b1
+ MX6QDL_PAD_NANDF_D5__NAND_DATA05 0xb0b1
+ MX6QDL_PAD_NANDF_D6__NAND_DATA06 0xb0b1
+ MX6QDL_PAD_NANDF_D7__NAND_DATA07 0xb0b1
+ MX6QDL_PAD_SD4_CMD__NAND_RE_B 0xb0b1
+ MX6QDL_PAD_SD4_CLK__NAND_WE_B 0xb0b1
+ MX6QDL_PAD_NANDF_WP_B__NAND_WP_B 0xb0b1
+ >;
+ };
+
+ pinctrl_hog: hoggrp {
+ fsl,pins = <
+ /* CTW6120 IRQ */
+ MX6QDL_PAD_EIM_DA7__GPIO3_IO07 0xb0b1
+ /* SDMMC2 CD/WP */
+ MX6QDL_PAD_KEY_COL4__GPIO4_IO14 0x1b0b0
+ MX6QDL_PAD_KEY_ROW4__GPIO4_IO15 0x1b0b0
+ >;
+ };
+
+ pinctrl_i2c1: i2c1grp {
+ fsl,pins = <
+ MX6QDL_PAD_CSI0_DAT8__I2C1_SDA 0x4001b8b1
+ MX6QDL_PAD_CSI0_DAT9__I2C1_SCL 0x4001b8b1
+ >;
+ };
+
+ pinctrl_i2c2: i2c2grp {
+ fsl,pins = <
+ MX6QDL_PAD_KEY_COL3__I2C2_SCL 0x4001b8b1
+ MX6QDL_PAD_KEY_ROW3__I2C2_SDA 0x4001b8b1
+ >;
+ };
+
+ pinctrl_i2c3: i2c3grp {
+ fsl,pins = <
+ MX6QDL_PAD_GPIO_5__I2C3_SCL 0x4001b8b1
+ MX6QDL_PAD_GPIO_16__I2C3_SDA 0x4001b8b1
+ >;
+ };
+
+ pinctrl_pmic: pmicgrp {
+ fsl,pins = <
+ /* PMIC INT */
+ MX6QDL_PAD_GPIO_17__GPIO7_IO12 0x1b0b0
+ >;
+ };
+
+ pinctrl_pwm2: pwm2grp {
+ fsl,pins = <
+ MX6QDL_PAD_DISP0_DAT9__PWM2_OUT 0x1b0b1
+ >;
+ };
+
+ pinctrl_uart1: uart1grp {
+ fsl,pins = <
+ MX6QDL_PAD_CSI0_DAT10__UART1_TX_DATA 0x1b0b1
+ MX6QDL_PAD_CSI0_DAT11__UART1_RX_DATA 0x1b0b1
+ >;
+ };
+
+ pinctrl_uart2: uart2grp {
+ fsl,pins = <
+ MX6QDL_PAD_SD3_DAT4__UART2_RX_DATA 0x1b0b1
+ MX6QDL_PAD_SD3_DAT5__UART2_TX_DATA 0x1b0b1
+ MX6QDL_PAD_EIM_D28__UART2_CTS_B 0x1b0b1
+ MX6QDL_PAD_EIM_D29__UART2_RTS_B 0x1b0b1
+ >;
+ };
+
+ pinctrl_usdhc3: usdhc3grp {
+ fsl,pins = <
+ MX6QDL_PAD_SD3_CMD__SD3_CMD 0x17069
+ MX6QDL_PAD_SD3_CLK__SD3_CLK 0x10069
+ MX6QDL_PAD_SD3_DAT0__SD3_DATA0 0x17069
+ MX6QDL_PAD_SD3_DAT1__SD3_DATA1 0x17069
+ MX6QDL_PAD_SD3_DAT2__SD3_DATA2 0x17069
+ MX6QDL_PAD_SD3_DAT3__SD3_DATA3 0x17069
+ /* WL_EN */
+ MX6QDL_PAD_SD3_DAT7__GPIO6_IO17 0x13059
+ /* WL_IRQ */
+ MX6QDL_PAD_SD3_RST__GPIO7_IO08 0x13059
+ >;
+ };
+
+ pinctrl_usdhc3_100mhz: usdhc3grp100mhzgrp {
+ fsl,pins = <
+ MX6QDL_PAD_SD3_CMD__SD3_CMD 0x170B9
+ MX6QDL_PAD_SD3_CLK__SD3_CLK 0x100B9
+ MX6QDL_PAD_SD3_DAT0__SD3_DATA0 0x170B9
+ MX6QDL_PAD_SD3_DAT1__SD3_DATA1 0x170B9
+ MX6QDL_PAD_SD3_DAT3__SD3_DATA3 0x170B9
+ MX6QDL_PAD_SD3_DAT3__SD3_DATA3 0x170B9
+ /* WL_EN */
+ MX6QDL_PAD_SD3_DAT7__GPIO6_IO17 0x130B9
+ /* WL_IRQ */
+ MX6QDL_PAD_SD3_RST__GPIO7_IO08 0x130B9
+ >;
+ };
+
+ pinctrl_usdhc3_200mhz: usdhc3grp200mhzgrp {
+ fsl,pins = <
+ MX6QDL_PAD_SD3_CMD__SD3_CMD 0x170F9
+ MX6QDL_PAD_SD3_CLK__SD3_CLK 0x100F9
+ MX6QDL_PAD_SD3_DAT0__SD3_DATA0 0x170F9
+ MX6QDL_PAD_SD3_DAT1__SD3_DATA1 0x170F9
+ MX6QDL_PAD_SD3_DAT2__SD3_DATA2 0x170F9
+ MX6QDL_PAD_SD3_DAT3__SD3_DATA3 0x170F9
+ /* WL_EN */
+ MX6QDL_PAD_SD3_DAT7__GPIO6_IO17 0x130F9
+ /* WL_IRQ */
+ MX6QDL_PAD_SD3_RST__GPIO7_IO08 0x130F9
+ >;
+ };
+};
+
+&pwm2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_pwm2>;
+ status = "okay";
+};
+
+®_arm {
+ vin-supply = <&sw1a_reg>;
+};
+
+®_pu {
+ vin-supply = <&sw1c_reg>;
+};
+
+®_soc {
+ vin-supply = <&sw1c_reg>;
+};
+
+®_vdd1p1 {
+ vin-supply = <&vgen5_reg>;
+};
+
+®_vdd2p5 {
+ vin-supply = <&vgen5_reg>;
+};
+
+&snvs_poweroff {
+ status = "okay";
+};
+
+&ssi2 {
+ status = "okay";
+};
+
+&uart1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart1>;
+ status = "okay";
+};
+
+&uart2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart2 &pinctrl_bt>;
+ uart-has-rtscts;
+ status = "okay";
+};
+
+&usbh1 {
+ vbus-supply = <®_usb_h1_vbus>;
+ status = "okay";
+};
+
+&usbotg {
+ vbus-supply = <®_usb_otg_vbus>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_usbotg_var>;
+ disable-over-current;
+ dr_mode = "host";
+ status = "okay";
+};
+
+&usbphy1 {
+ fsl,tx-d-cal = <0x5>;
+};
+
+&usbphy2 {
+ fsl,tx-d-cal = <0x5>;
+};
+
+&usdhc1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_usdhc1>;
+ non-removable;
+ keep-power-in-suspend;
+ status = "okay";
+};
+
+&usdhc3 {
+ pinctrl-names = "default", "state_100mhz", "state_200mhz";
+ pinctrl-0 = <&pinctrl_usdhc3>;
+ pinctrl-1 = <&pinctrl_usdhc3_100mhz>;
+ pinctrl-2 = <&pinctrl_usdhc3_200mhz>;
+ bus-width = <4>;
+ vmmc-supply = <®_wl18xx_vmmc>;
+ non-removable;
+ wakeup-source;
+ keep-power-in-suspend;
+ cap-power-off-card;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "okay";
+
+ wifi: wifi@2 {
+ compatible = "ti,wl1835";
+ reg = <2>;
+ interrupt-parent = <&gpio6>;
+ interrupts = <17 IRQ_TYPE_EDGE_RISING>;
+ ref-clock-frequency = <38400000>;
+ };
+};