ARM: dts: imx6q: Add support for the DHCOM iMX6 SoM and PDK2

Add support for the DH i.MX6 Quad based SoM and a PDK2 evaluation board.
The evaluation board features three serial ports, USB OTG, USB host with
an USB hub, Fast or Gigabit ethernet, eMMC, uSD, SD, mSATA, analog audio,
PCIe and HDMI video output.

All of the aforementioned features are supported by this patch.

Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

1 files changed, 476 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/imx6q-dhcom-som.dtsi b/arch/arm/boot/dts/imx6q-dhcom-som.dtsi
new file mode 100644
index 000000000000..bbba0671f0f4
--- /dev/null
+++ b/arch/arm/boot/dts/imx6q-dhcom-som.dtsi
@@ -0,0 +1,476 @@
+// SPDX-License-Identifier: (GPL-2.0+)
+/*
+ * Copyright (C) 2015 DH electronics GmbH
+ * Copyright (C) 2018 Marek Vasut <marex@denx.de>
+ */
+
+#include "imx6q.dtsi"
+#include <dt-bindings/pwm/pwm.h>
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/clock/imx6qdl-clock.h>
+#include <dt-bindings/input/input.h>
+
+/ {
+	aliases {
+		mmc0 = &usdhc2;
+		mmc1 = &usdhc3;
+		mmc2 = &usdhc4;
+		mmc3 = &usdhc1;
+	};
+
+	memory@10000000 {
+		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-vbus {
+		compatible = "regulator-fixed";
+		regulator-name = "usb_h1_vbus";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		gpio = <&gpio3 31 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+
+	reg_3p3v: regulator-3P3V {
+		compatible = "regulator-fixed";
+		regulator-name = "3P3V";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-always-on;
+	};
+};
+
+&can1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_flexcan1>;
+	status = "okay";
+};
+
+&can2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_flexcan2>;
+	status = "okay";
+};
+
+&ecspi1 {
+	cs-gpios = <&gpio2 30 GPIO_ACTIVE_HIGH>, <&gpio4 11 GPIO_ACTIVE_HIGH>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_ecspi1>;
+	status = "okay";
+
+	flash@0 {	/* S25FL116K */
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "jedec,spi-nor";
+		spi-max-frequency = <50000000>;
+		reg = <0>;
+		m25p,fast-read;
+	};
+};
+
+&ecspi2 {
+	cs-gpios = <&gpio5 29 GPIO_ACTIVE_LOW>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_ecspi2>;
+	status = "okay";
+};
+
+&fec {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_enet_100M>;
+	phy-mode = "rmii";
+	phy-handle = <&ethphy0>;
+	status = "okay";
+
+	mdio {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		ethphy0: ethernet-phy@0 {	/* SMSC LAN8710Ai */
+			reg = <0>;
+			max-speed = <100>;
+			reset-gpios = <&gpio5 0 GPIO_ACTIVE_LOW>;
+			reset-delay-us = <1000>;
+			reset-post-delay-us = <1000>;
+		};
+	};
+};
+
+&i2c1 {
+	clock-frequency = <100000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c1>;
+	status = "okay";
+};
+
+&i2c2 {
+	clock-frequency = <100000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c2>;
+	status = "okay";
+};
+
+&i2c3 {
+	clock-frequency = <100000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c3>;
+	status = "okay";
+
+	ltc3676: pmic@3c {
+		compatible = "lltc,ltc3676";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_pmic_hw300>;
+		reg = <0x3c>;
+		interrupt-parent = <&gpio5>;
+		interrupts = <2 IRQ_TYPE_EDGE_FALLING>;
+
+		regulators {
+			sw1_reg: sw1 {
+				regulator-min-microvolt = <787500>;
+				regulator-max-microvolt = <1527272>;
+				lltc,fb-voltage-divider = <100000 110000>;
+				regulator-suspend-mem-microvolt = <1040000>;
+				regulator-ramp-delay = <7000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			sw2_reg: sw2 {
+				regulator-min-microvolt = <1885714>;
+				regulator-max-microvolt = <3657142>;
+				lltc,fb-voltage-divider = <100000 28000>;
+				regulator-ramp-delay = <7000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			sw3_reg: sw3 {
+				regulator-min-microvolt = <787500>;
+				regulator-max-microvolt = <1527272>;
+				lltc,fb-voltage-divider = <100000 110000>;
+				regulator-suspend-mem-microvolt = <980000>;
+				regulator-ramp-delay = <7000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			sw4_reg: sw4 {
+				regulator-min-microvolt = <855571>;
+				regulator-max-microvolt = <1659291>;
+				lltc,fb-voltage-divider = <100000 93100>;
+				regulator-ramp-delay = <7000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			ldo1_reg: ldo1 {
+				regulator-min-microvolt = <3240306>;
+				regulator-max-microvolt = <3240306>;
+				lltc,fb-voltage-divider = <102000 29400>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			ldo2_reg: ldo2 {
+				regulator-min-microvolt = <2484708>;
+				regulator-max-microvolt = <2484708>;
+				lltc,fb-voltage-divider = <100000 41200>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+		};
+	};
+
+	touchscreen@49 {	/* TSC2004 */
+		compatible = "ti,tsc2004";
+		reg = <0x49>;
+		vio-supply = <&reg_3p3v>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_tsc2004_hw300>;
+		interrupts-extended = <&gpio4 14 IRQ_TYPE_EDGE_FALLING>;
+		status = "disabled";
+	};
+
+	eeprom@50 {
+		compatible = "atmel,24c02";
+		reg = <0x50>;
+		pagesize = <16>;
+	};
+
+	rtc@56 {
+		compatible = "rv3029c2";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_rtc_hw300>;
+		reg = <0x56>;
+		interrupt-parent = <&gpio7>;
+		interrupts = <12 2>;
+	};
+};
+
+&iomuxc {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_hog_base>;
+
+	pinctrl_hog_base: hog-base-grp {
+		fsl,pins = <
+			MX6QDL_PAD_EIM_A19__GPIO2_IO19		0x120b0
+			MX6QDL_PAD_EIM_A23__GPIO6_IO06		0x120b0
+			MX6QDL_PAD_EIM_A22__GPIO2_IO16		0x120b0
+			MX6QDL_PAD_EIM_A16__GPIO2_IO22		0x120b0
+			MX6QDL_PAD_EIM_A17__GPIO2_IO21		0x120b0
+		>;
+	};
+
+	pinctrl_ecspi1: ecspi1-grp {
+		fsl,pins = <
+			MX6QDL_PAD_EIM_D17__ECSPI1_MISO		0x100b1
+			MX6QDL_PAD_EIM_D18__ECSPI1_MOSI		0x100b1
+			MX6QDL_PAD_EIM_D16__ECSPI1_SCLK		0x100b1
+			MX6QDL_PAD_EIM_EB2__GPIO2_IO30		0x1b0b0
+			MX6QDL_PAD_KEY_ROW2__GPIO4_IO11		0x1b0b0
+		>;
+	};
+
+	pinctrl_ecspi2: ecspi2-grp {
+		fsl,pins = <
+			MX6QDL_PAD_CSI0_DAT10__ECSPI2_MISO	0x100b1
+			MX6QDL_PAD_CSI0_DAT9__ECSPI2_MOSI	0x100b1
+			MX6QDL_PAD_CSI0_DAT8__ECSPI2_SCLK	0x100b1
+			MX6QDL_PAD_CSI0_DAT11__GPIO5_IO29	0x1b0b0
+		>;
+	};
+
+	pinctrl_enet_100M: enet-100M-grp {
+		fsl,pins = <
+			MX6QDL_PAD_ENET_MDIO__ENET_MDIO		0x1b0b0
+			MX6QDL_PAD_ENET_MDC__ENET_MDC		0x1b0b0
+			MX6QDL_PAD_ENET_CRS_DV__ENET_RX_EN	0x1b0b0
+			MX6QDL_PAD_ENET_RX_ER__ENET_RX_ER	0x1b0b0
+			MX6QDL_PAD_ENET_RXD0__ENET_RX_DATA0	0x1b0b0
+			MX6QDL_PAD_ENET_RXD1__ENET_RX_DATA1	0x1b0b0
+			MX6QDL_PAD_ENET_TX_EN__ENET_TX_EN	0x1b0b0
+			MX6QDL_PAD_ENET_TXD0__ENET_TX_DATA0	0x1b0b0
+			MX6QDL_PAD_ENET_TXD1__ENET_TX_DATA1	0x1b0b0
+			MX6QDL_PAD_GPIO_16__ENET_REF_CLK	0x4001b0a8
+			MX6QDL_PAD_EIM_WAIT__GPIO5_IO00		0x000b0
+			MX6QDL_PAD_KEY_ROW4__GPIO4_IO15		0x000b1
+			MX6QDL_PAD_GPIO_7__GPIO1_IO07		0x120b0
+		>;
+	};
+
+	pinctrl_flexcan1: flexcan1-grp {
+		fsl,pins = <
+			MX6QDL_PAD_KEY_COL2__FLEXCAN1_TX	0x1b0b0
+			MX6QDL_PAD_GPIO_8__FLEXCAN1_RX		0x1b0b0
+		>;
+	};
+
+	pinctrl_flexcan2: flexcan2-grp {
+		fsl,pins = <
+			MX6QDL_PAD_SD3_DAT0__FLEXCAN2_TX	0x1b0b0
+			MX6QDL_PAD_SD3_DAT1__FLEXCAN2_RX	0x1b0b0
+		>;
+	};
+
+	pinctrl_i2c1: i2c1-grp {
+		fsl,pins = <
+			MX6QDL_PAD_EIM_D21__I2C1_SCL		0x4001b8b1
+			MX6QDL_PAD_EIM_D28__I2C1_SDA		0x4001b8b1
+		>;
+	};
+
+	pinctrl_i2c2: i2c2-grp {
+		fsl,pins = <
+			MX6QDL_PAD_KEY_COL3__I2C2_SCL		0x4001b8b1
+			MX6QDL_PAD_KEY_ROW3__I2C2_SDA		0x4001b8b1
+		>;
+	};
+
+	pinctrl_i2c3: i2c3-grp {
+		fsl,pins = <
+			MX6QDL_PAD_GPIO_3__I2C3_SCL		0x4001b8b1
+			MX6QDL_PAD_GPIO_6__I2C3_SDA		0x4001b8b1
+		>;
+	};
+
+	pinctrl_pmic_hw300: pmic-hw300-grp {
+		fsl,pins = <
+			MX6QDL_PAD_EIM_A25__GPIO5_IO02		0x1B0B0
+		>;
+	};
+
+	pinctrl_rtc_hw300: rtc-hw300-grp {
+		fsl,pins = <
+			MX6QDL_PAD_GPIO_17__GPIO7_IO12		0x120B0
+		>;
+	};
+
+	pinctrl_tsc2004_hw300: tsc2004-hw300-grp {
+		fsl,pins = <
+			MX6QDL_PAD_KEY_COL4__GPIO4_IO14		0x120B0
+		>;
+	};
+
+	pinctrl_uart1: uart1-grp {
+		fsl,pins = <
+			MX6QDL_PAD_SD3_DAT7__UART1_TX_DATA	0x1b0b1
+			MX6QDL_PAD_SD3_DAT6__UART1_RX_DATA	0x1b0b1
+			MX6QDL_PAD_EIM_D20__UART1_RTS_B		0x1b0b1
+			MX6QDL_PAD_EIM_D19__UART1_CTS_B		0x4001b0b1
+			MX6QDL_PAD_EIM_D23__GPIO3_IO23		0x4001b0b1
+			MX6QDL_PAD_EIM_D24__GPIO3_IO24		0x4001b0b1
+			MX6QDL_PAD_EIM_D25__GPIO3_IO25		0x4001b0b1
+			MX6QDL_PAD_EIM_EB3__GPIO2_IO31		0x4001b0b1
+		>;
+	};
+
+	pinctrl_uart4: uart4-grp {
+		fsl,pins = <
+			MX6QDL_PAD_CSI0_DAT12__UART4_TX_DATA	0x1b0b1
+			MX6QDL_PAD_CSI0_DAT13__UART4_RX_DATA	0x1b0b1
+		>;
+	};
+
+	pinctrl_uart5: uart5-grp {
+		fsl,pins = <
+			MX6QDL_PAD_CSI0_DAT14__UART5_TX_DATA	0x1b0b1
+			MX6QDL_PAD_CSI0_DAT15__UART5_RX_DATA	0x1b0b1
+			MX6QDL_PAD_CSI0_DAT18__UART5_RTS_B	0x1b0b1
+			MX6QDL_PAD_CSI0_DAT19__UART5_CTS_B	0x4001b0b1
+		>;
+	};
+
+	pinctrl_usbh1: usbh1-grp {
+		fsl,pins = <
+			MX6QDL_PAD_EIM_D31__GPIO3_IO31		0x120B0
+		>;
+	};
+
+	pinctrl_usbotg: usbotg-grp {
+		fsl,pins = <
+			MX6QDL_PAD_GPIO_1__USB_OTG_ID		0x17059
+		>;
+	};
+
+	pinctrl_usdhc2: usdhc2-grp {
+		fsl,pins = <
+			MX6QDL_PAD_SD2_CMD__SD2_CMD		0x17059
+			MX6QDL_PAD_SD2_CLK__SD2_CLK		0x10059
+			MX6QDL_PAD_SD2_DAT0__SD2_DATA0		0x17059
+			MX6QDL_PAD_SD2_DAT1__SD2_DATA1		0x17059
+			MX6QDL_PAD_SD2_DAT2__SD2_DATA2		0x17059
+			MX6QDL_PAD_SD2_DAT3__SD2_DATA3		0x17059
+			MX6QDL_PAD_NANDF_CS3__GPIO6_IO16	0x120B0
+		>;
+	};
+
+	pinctrl_usdhc3: usdhc3-grp {
+		fsl,pins = <
+			MX6QDL_PAD_SD3_CMD__SD3_CMD		0x17059
+			MX6QDL_PAD_SD3_CLK__SD3_CLK		0x10059
+			MX6QDL_PAD_SD3_DAT0__SD3_DATA0		0x17059
+			MX6QDL_PAD_SD3_DAT1__SD3_DATA1		0x17059
+			MX6QDL_PAD_SD3_DAT2__SD3_DATA2		0x17059
+			MX6QDL_PAD_SD3_DAT3__SD3_DATA3		0x17059
+			MX6QDL_PAD_SD3_RST__GPIO7_IO08		0x120B0
+		>;
+	};
+
+	pinctrl_usdhc4: usdhc4-grp {
+		fsl,pins = <
+			MX6QDL_PAD_SD4_CMD__SD4_CMD		0x17059
+			MX6QDL_PAD_SD4_CLK__SD4_CLK		0x10059
+			MX6QDL_PAD_SD4_DAT0__SD4_DATA0		0x17059
+			MX6QDL_PAD_SD4_DAT1__SD4_DATA1		0x17059
+			MX6QDL_PAD_SD4_DAT2__SD4_DATA2		0x17059
+			MX6QDL_PAD_SD4_DAT3__SD4_DATA3		0x17059
+			MX6QDL_PAD_SD4_DAT4__SD4_DATA4		0x17059
+			MX6QDL_PAD_SD4_DAT5__SD4_DATA5		0x17059
+			MX6QDL_PAD_SD4_DAT6__SD4_DATA6		0x17059
+			MX6QDL_PAD_SD4_DAT7__SD4_DATA7		0x17059
+		>;
+	};
+};
+
+&reg_arm {
+	vin-supply = <&sw3_reg>;
+};
+
+&reg_soc {
+	vin-supply = <&sw1_reg>;
+};
+
+&uart1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart1>;
+	uart-has-rtscts;
+	dtr-gpios = <&gpio3 24 GPIO_ACTIVE_LOW>;
+	dsr-gpios = <&gpio3 25 GPIO_ACTIVE_LOW>;
+	dcd-gpios = <&gpio3 23 GPIO_ACTIVE_LOW>;
+	rng-gpios = <&gpio2 31 GPIO_ACTIVE_LOW>;
+	status = "okay";
+};
+
+&uart4 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart4>;
+	status = "okay";
+};
+
+&uart5 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart5>;
+	uart-has-rtscts;
+	status = "okay";
+};
+
+&usbh1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usbh1>;
+	vbus-supply = <&reg_usb_h1_vbus>;
+	dr_mode = "host";
+	status = "okay";
+};
+
+&usbotg {
+	vbus-supply = <&reg_usb_otg_vbus>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usbotg>;
+	disable-over-current;
+	dr_mode = "otg";
+	status = "okay";
+};
+
+&usdhc2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usdhc2>;
+	cd-gpios = <&gpio6 16 GPIO_ACTIVE_HIGH>;
+	keep-power-in-suspend;
+	status = "okay";
+};
+
+&usdhc3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usdhc3>;
+	cd-gpios = <&gpio7 8 GPIO_ACTIVE_LOW>;
+	fsl,wp-controller;
+	keep-power-in-suspend;
+	status = "disabled";
+};
+
+&usdhc4 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usdhc4>;
+	non-removable;
+	bus-width = <8>;
+	no-1-8-v;
+	keep-power-in-suspend;
+	status = "okay";
+};