ARM: dts: imx6q: Add Variscite MX6 Custom board support

This patch adds support for the Variscite MX6 SoM Carrier Board.

This Carrier-Board has the following :
- LVDS interface for the VLCD-CAP-GLD-LVDS 7" LCD 800 x 480 touch display
- HDMI Connector
- USB Host + USB OTG Connector
- 10/100/1000 Mbps Ethernet
- miniPCI-Express slot
- SD Card connector
- Audio Headphone/Line In jack connectors
- S-ATA
- On-board DMIC
- RS485 Header
- CAN bus header
- SPI header
- Camera Interfaces header
- OnBoard RTC with Coin Backup battery socket
- RS232 Debug Header (IDC10)
- RS232 DTE

Product Page : https://www.variscite.com/product/single-board-computers/var-mx6customboard

The dts file based on the ones provided by Variscite on their own
kernel, but adapted for mainline.

Cc: Pierluigi Passaro <pierluigi.p@variscite.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: James Hilliard <james.hilliard1@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

2 files changed, 248 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/nxp/imx/Makefile b/arch/arm/boot/dts/nxp/imx/Makefile
index 7532ed6468a0..a724d1a7a9a0 100644
--- a/arch/arm/boot/dts/nxp/imx/Makefile
+++ b/arch/arm/boot/dts/nxp/imx/Makefile
@@ -246,6 +246,7 @@ dtb-$(CONFIG_SOC_IMX6Q) += \
 	imx6q-udoo.dtb \
 	imx6q-utilite-pro.dtb \
 	imx6q-var-dt6customboard.dtb \
+	imx6q-var-mx6customboard.dtb \
 	imx6q-vicut1.dtb \
 	imx6q-wandboard.dtb \
 	imx6q-wandboard-revb1.dtb \
diff --git a/arch/arm/boot/dts/nxp/imx/imx6q-var-mx6customboard.dts b/arch/arm/boot/dts/nxp/imx/imx6q-var-mx6customboard.dts
new file mode 100644
index 000000000000..6f9d094dd6d0
--- /dev/null
+++ b/arch/arm/boot/dts/nxp/imx/imx6q-var-mx6customboard.dts
@@ -0,0 +1,247 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Support for Variscite MX6 Carrier-board
+ *
+ * Copyright 2016 Variscite, Ltd. All Rights Reserved
+ * Copyright 2022 Bootlin
+ */
+
+/dts-v1/;
+
+#include "imx6qdl-var-som.dtsi"
+#include <dt-bindings/pwm/pwm.h>
+
+/ {
+	model = "Variscite i.MX6 QUAD/DUAL VAR-SOM-MX6 Custom Board";
+	compatible = "variscite,mx6customboard", "variscite,var-som-imx6q", "fsl,imx6q";
+
+	panel0: lvds-panel0 {
+		compatible =  "panel-lvds";
+		backlight = <&backlight_lvds>;
+		width-mm = <152>;
+		height-mm = <91>;
+		label = "etm070001adh6";
+		data-mapping = "jeida-18";
+
+		panel-timing {
+			clock-frequency = <32000000>;
+			hactive = <800>;
+			vactive = <480>;
+			hback-porch = <39>;
+			hfront-porch = <39>;
+			vback-porch = <29>;
+			vfront-porch = <13>;
+			hsync-len = <47>;
+			vsync-len = <2>;
+		};
+
+		port {
+			panel_in_lvds0: endpoint {
+				remote-endpoint = <&lvds0_out>;
+			};
+		};
+	};
+
+	panel1: lvds-panel1 {
+		compatible =  "panel-lvds";
+		width-mm = <152>;
+		height-mm = <91>;
+		data-mapping = "jeida-18";
+
+		panel-timing {
+			clock-frequency = <38251000>;
+			hactive = <800>;
+			vactive = <600>;
+			hback-porch = <112>;
+			hfront-porch = <32>;
+			vback-porch = <3>;
+			vfront-porch = <17>;
+			hsync-len = <80>;
+			vsync-len = <4>;
+		};
+
+		port {
+			panel_in_lvds1: endpoint {
+				remote-endpoint = <&lvds1_out>;
+			};
+		};
+	};
+
+	backlight_lvds: backlight-lvds {
+		compatible = "pwm-backlight";
+		pwms = <&pwm2 0 50000 0>;
+		brightness-levels = <0 4 8 16 32 64 128 248>;
+		default-brightness-level = <7>;
+		power-supply = <&reg_3p3v>;
+	};
+};
+
+&i2c3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c3>;
+	status = "okay";
+
+	touchscreen@24 {
+		compatible = "cypress,tt21000";
+		reg = <0x24>;
+		interrupt-parent = <&gpio3>;
+		interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
+		reset-gpios = <&gpio5 13 GPIO_ACTIVE_LOW>;
+		vdd-supply = <&reg_3p3v>;
+		touchscreen-size-x = <880>;
+		touchscreen-size-y = <1280>;
+	};
+
+	touchscreen@38 {
+		compatible = "edt,edt-ft5306";
+		reg = <0x38>;
+		interrupt-parent = <&gpio3>;
+		interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
+		touchscreen-size-x = <1800>;
+		touchscreen-size-y = <1000>;
+	};
+};
+
+&iomuxc {
+	pinctrl_camera: cameragrp {
+		fsl,pins = <
+			MX6QDL_PAD_CSI0_DAT12__IPU1_CSI0_DATA12		0x1b0b0
+			MX6QDL_PAD_CSI0_DAT13__IPU1_CSI0_DATA13		0x1b0b0
+			MX6QDL_PAD_CSI0_DAT14__IPU1_CSI0_DATA14		0x1b0b0
+			MX6QDL_PAD_CSI0_DAT15__IPU1_CSI0_DATA15		0x1b0b0
+			MX6QDL_PAD_CSI0_DAT16__IPU1_CSI0_DATA16		0x1b0b0
+			MX6QDL_PAD_CSI0_DAT17__IPU1_CSI0_DATA17		0x1b0b0
+			MX6QDL_PAD_CSI0_DAT18__IPU1_CSI0_DATA18		0x1b0b0
+			MX6QDL_PAD_CSI0_DAT19__IPU1_CSI0_DATA19		0x1b0b0
+			MX6QDL_PAD_CSI0_DATA_EN__IPU1_CSI0_DATA_EN	0x1b0b0
+			MX6QDL_PAD_CSI0_PIXCLK__IPU1_CSI0_PIXCLK	0x1b0b0
+			MX6QDL_PAD_CSI0_MCLK__IPU1_CSI0_HSYNC		0x1b0b0
+			MX6QDL_PAD_CSI0_VSYNC__IPU1_CSI0_VSYNC		0x1b0b0
+		>;
+	};
+
+	pinctrl_flexcan1: flexcan1grp {
+		fsl,pins = <
+			MX6QDL_PAD_GPIO_7__FLEXCAN1_TX		0x1b0b0
+			MX6QDL_PAD_GPIO_8__FLEXCAN1_RX		0x1b0b0
+		>;
+	};
+
+	pinctrl_ipu1: ipu1grp {
+		fsl,pins = <
+			MX6QDL_PAD_DI0_DISP_CLK__IPU1_DI0_DISP_CLK	0x10
+			MX6QDL_PAD_DI0_PIN15__IPU1_DI0_PIN15		0x10
+			MX6QDL_PAD_DI0_PIN2__IPU1_DI0_PIN02		0x10
+			MX6QDL_PAD_DI0_PIN3__IPU1_DI0_PIN03		0x10
+			MX6QDL_PAD_DI0_PIN4__IPU1_DI0_PIN04		0x10
+			MX6QDL_PAD_DISP0_DAT0__IPU1_DISP0_DATA00	0x10
+			MX6QDL_PAD_DISP0_DAT1__IPU1_DISP0_DATA01	0x10
+			MX6QDL_PAD_DISP0_DAT2__IPU1_DISP0_DATA02	0x10
+			MX6QDL_PAD_DISP0_DAT3__IPU1_DISP0_DATA03	0x10
+			MX6QDL_PAD_DISP0_DAT4__IPU1_DISP0_DATA04	0x10
+			MX6QDL_PAD_DISP0_DAT5__IPU1_DISP0_DATA05	0x10
+			MX6QDL_PAD_DISP0_DAT6__IPU1_DISP0_DATA06	0x10
+			MX6QDL_PAD_DISP0_DAT7__IPU1_DISP0_DATA07	0x10
+			MX6QDL_PAD_DISP0_DAT8__IPU1_DISP0_DATA08	0x10
+			MX6QDL_PAD_DISP0_DAT9__IPU1_DISP0_DATA09	0x10
+			MX6QDL_PAD_DISP0_DAT10__IPU1_DISP0_DATA10	0x10
+			MX6QDL_PAD_DISP0_DAT11__IPU1_DISP0_DATA11	0x10
+			MX6QDL_PAD_DISP0_DAT12__IPU1_DISP0_DATA12	0x10
+			MX6QDL_PAD_DISP0_DAT13__IPU1_DISP0_DATA13	0x10
+			MX6QDL_PAD_DISP0_DAT14__IPU1_DISP0_DATA14	0x10
+			MX6QDL_PAD_DISP0_DAT15__IPU1_DISP0_DATA15	0x10
+			MX6QDL_PAD_DISP0_DAT16__IPU1_DISP0_DATA16	0x10
+			MX6QDL_PAD_DISP0_DAT17__IPU1_DISP0_DATA17	0x10
+			MX6QDL_PAD_DISP0_DAT18__IPU1_DISP0_DATA18	0x10
+			MX6QDL_PAD_DISP0_DAT19__IPU1_DISP0_DATA19	0x10
+			MX6QDL_PAD_DISP0_DAT20__IPU1_DISP0_DATA20	0x10
+			MX6QDL_PAD_DISP0_DAT21__IPU1_DISP0_DATA21	0x10
+			MX6QDL_PAD_DISP0_DAT22__IPU1_DISP0_DATA22	0x10
+			MX6QDL_PAD_DISP0_DAT23__IPU1_DISP0_DATA23	0x10
+		>;
+	};
+
+	pinctrl_uart3: uart3grp {
+		fsl,pins = <
+			MX6QDL_PAD_EIM_D25__UART3_RX_DATA	0x1b0b1
+			MX6QDL_PAD_EIM_D24__UART3_TX_DATA	0x1b0b1
+			MX6QDL_PAD_EIM_D23__UART3_CTS_B		0x1b0b1
+			MX6QDL_PAD_EIM_EB3__UART3_RTS_B		0x1b0b1
+		>;
+	};
+
+	pinctrl_usbotg_var: usbotggrp {
+		fsl,pins = <
+			MX6QDL_PAD_GPIO_4__GPIO1_IO04		0x17059
+		>;
+	};
+
+	pinctrl_usdhc1: usdhc1grp {
+		fsl,pins = <
+			MX6QDL_PAD_SD1_CMD__SD1_CMD		0x17071
+			MX6QDL_PAD_SD1_CLK__SD1_CLK		0x10071
+			MX6QDL_PAD_SD1_DAT0__SD1_DATA0		0x17071
+			MX6QDL_PAD_SD1_DAT1__SD1_DATA1		0x17071
+			MX6QDL_PAD_SD1_DAT2__SD1_DATA2		0x17071
+			MX6QDL_PAD_SD1_DAT3__SD1_DATA3		0x17071
+		>;
+	};
+
+	pinctrl_usdhc2: usdhc2grp {
+		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
+		>;
+	};
+};
+
+&ldb {
+	status = "okay";
+
+	lvds-channel@0 {
+		fsl,data-mapping = "spwg";
+		fsl,data-width = <24>;
+		status = "okay";
+
+		port@4 {
+			reg = <4>;
+
+			lvds0_out: endpoint {
+				remote-endpoint = <&panel_in_lvds0>;
+			};
+		};
+	};
+
+	lvds-channel@1 {
+		fsl,data-mapping = "spwg";
+		fsl,data-width = <24>;
+		status = "okay";
+
+		port@4 {
+			reg = <4>;
+
+			lvds1_out: endpoint {
+				remote-endpoint = <&panel_in_lvds1>;
+			};
+		};
+	};
+};
+
+&uart3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart3>;
+	uart-has-rtscts;
+	status = "okay";
+};
+
+&usdhc2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usdhc2>;
+	cd-gpios = <&gpio4 14 GPIO_ACTIVE_LOW>;
+	wp-gpios = <&gpio4 15 GPIO_ACTIVE_HIGH>;
+	status = "okay";
+};