imx: support i.MX8QM ROM 7720 a1 board

Add i.MX8QM ROM 7720a1 board support

Boot log as below:
U-Boot 2019.10-rc3-00004-gd073e0242f (Sep 20 2019 - 08:24:13 +0200)

CPU:   NXP i.MX8QM RevB A53 at 1200 MHz

Model: Advantech iMX8QM Qseven series
Board: ROM-7720-A1 4GB
Build: SCFW 65afe5f6
Boot:  SD2
DRAM:  4 GiB
MMC:   FSL_SDHC: 0, FSL_SDHC: 1, FSL_SDHC: 2
Loading Environment from MMC... OK
In:    serial@5a060000
Out:   serial@5a060000
Err:   serial@5a060000
Net:   eth0: ethernet@5b040000Could not get PHY for FEC1: addr 1
, eth-1: ethernet@5b050000
Hit any key to stop autoboot:  0

Signed-off-by: Oliver Graute <oliver.graute@kococonnector.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Ye Li <ye.li@nxp.com>
Cc: uboot-imx <uboot-imx@nxp.com>
diff --git a/arch/arm/dts/imx8qm-rom7720-a1.dts b/arch/arm/dts/imx8qm-rom7720-a1.dts
new file mode 100644
index 0000000..5f9ac95
--- /dev/null
+++ b/arch/arm/dts/imx8qm-rom7720-a1.dts
@@ -0,0 +1,373 @@
+// SPDX-License-Identifier:	GPL-2.0+
+/*
+ * Copyright (C) 2016 Freescale Semiconductor, Inc.
+ * Copyright 2017 NXP
+ */
+
+/dts-v1/;
+
+/* First 128KB is for PSCI ATF. */
+/memreserve/ 0x80000000 0x00020000;
+
+#include "fsl-imx8qm.dtsi"
+
+/ {
+	model = "Advantech iMX8QM Qseven series";
+	compatible = "fsl,imx8qm-mek", "fsl,imx8qm";
+
+	chosen {
+		bootargs = "console=ttyLP0,115200 earlycon=lpuart32,0x5a060000,115200";
+		stdout-path = &lpuart0;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_gpio_leds>;
+		user {
+			label = "heartbeat";
+			gpios = <&gpio2 15 0>;
+			default-state = "on";
+			linux,default-trigger = "heartbeat";
+		};
+	};
+
+	regulators {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		reg_usb_otg1_vbus: regulator@0 {
+			compatible = "regulator-fixed";
+			reg = <0>;
+			regulator-name = "usb_otg1_vbus";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			gpio = <&gpio4 3 GPIO_ACTIVE_HIGH>;
+			enable-active-high;
+		};
+
+		reg_usdhc2_vmmc: usdhc2_vmmc {
+			compatible = "regulator-fixed";
+			regulator-name = "sw-3p3-sd1";
+			regulator-min-microvolt = <3300000>;
+			regulator-max-microvolt = <3300000>;
+			gpio = <&gpio4 7 GPIO_ACTIVE_HIGH>;
+			enable-active-high;
+		};
+	};
+};
+
+&iomuxc {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_hog_1>;
+
+	imx8qm-mek {
+		pinctrl_hog_1: hoggrp-1 {
+			fsl,pins = <
+				SC_P_USB_SS3_TC0_LSIO_GPIO4_IO03	0x06000048
+			>;
+		};
+
+		pinctrl_fec1: fec1grp {
+			fsl,pins = <
+				SC_P_COMP_CTL_GPIO_1V8_3V3_ENET_ENETB_PAD	0x000014a0
+				SC_P_ENET0_MDC_CONN_ENET0_MDC			0x06000048
+				SC_P_ENET0_MDIO_CONN_ENET0_MDIO			0x06000048
+				SC_P_ENET0_RGMII_TX_CTL_CONN_ENET0_RGMII_TX_CTL	0x00000060
+				SC_P_ENET0_RGMII_TXC_CONN_ENET0_RGMII_TXC	0x00000060
+				SC_P_ENET0_RGMII_TXD0_CONN_ENET0_RGMII_TXD0	0x00000060
+				SC_P_ENET0_RGMII_TXD1_CONN_ENET0_RGMII_TXD1	0x00000060
+				SC_P_ENET0_RGMII_TXD2_CONN_ENET0_RGMII_TXD2	0x00000060
+				SC_P_ENET0_RGMII_TXD3_CONN_ENET0_RGMII_TXD3	0x00000060
+				SC_P_ENET0_RGMII_RXC_CONN_ENET0_RGMII_RXC	0x00000060
+				SC_P_ENET0_RGMII_RX_CTL_CONN_ENET0_RGMII_RX_CTL	0x00000060
+				SC_P_ENET0_RGMII_RXD0_CONN_ENET0_RGMII_RXD0	0x00000060
+				SC_P_ENET0_RGMII_RXD1_CONN_ENET0_RGMII_RXD1	0x00000060
+				SC_P_ENET0_RGMII_RXD2_CONN_ENET0_RGMII_RXD2	0x00000060
+				SC_P_ENET0_RGMII_RXD3_CONN_ENET0_RGMII_RXD3	0x00000060
+			>;
+		};
+
+		pinctrl_fec2: fec2grp {
+			fsl,pins = <
+				SC_P_COMP_CTL_GPIO_1V8_3V3_ENET_ENETA_PAD	0x000014a0
+				SC_P_ENET1_RGMII_TX_CTL_CONN_ENET1_RGMII_TX_CTL	0x00000060
+				SC_P_ENET1_RGMII_TXC_CONN_ENET1_RGMII_TXC	0x00000060
+				SC_P_ENET1_RGMII_TXD0_CONN_ENET1_RGMII_TXD0	0x00000060
+				SC_P_ENET1_RGMII_TXD1_CONN_ENET1_RGMII_TXD1	0x00000060
+				SC_P_ENET1_RGMII_TXD2_CONN_ENET1_RGMII_TXD2	0x00000060
+				SC_P_ENET1_RGMII_TXD3_CONN_ENET1_RGMII_TXD3	0x00000060
+				SC_P_ENET1_RGMII_RXC_CONN_ENET1_RGMII_RXC	0x00000060
+				SC_P_ENET1_RGMII_RX_CTL_CONN_ENET1_RGMII_RX_CTL	0x00000060
+				SC_P_ENET1_RGMII_RXD0_CONN_ENET1_RGMII_RXD0	0x00000060
+				SC_P_ENET1_RGMII_RXD1_CONN_ENET1_RGMII_RXD1	0x00000060
+				SC_P_ENET1_RGMII_RXD2_CONN_ENET1_RGMII_RXD2	0x00000060
+				SC_P_ENET1_RGMII_RXD3_CONN_ENET1_RGMII_RXD3	0x00000060
+			>;
+		};
+
+		pinctrl_lpuart0: lpuart0grp {
+			fsl,pins = <
+				SC_P_UART0_RX_DMA_UART0_RX		0x06000020
+				SC_P_UART0_TX_DMA_UART0_TX		0x06000020
+			>;
+		};
+
+		pinctrl_usdhc1: usdhc1grp {
+			fsl,pins = <
+				SC_P_EMMC0_CLK_CONN_EMMC0_CLK		0x06000041
+				SC_P_EMMC0_CMD_CONN_EMMC0_CMD		0x00000021
+				SC_P_EMMC0_DATA0_CONN_EMMC0_DATA0	0x00000021
+				SC_P_EMMC0_DATA1_CONN_EMMC0_DATA1	0x00000021
+				SC_P_EMMC0_DATA2_CONN_EMMC0_DATA2	0x00000021
+				SC_P_EMMC0_DATA3_CONN_EMMC0_DATA3	0x00000021
+				SC_P_EMMC0_DATA4_CONN_EMMC0_DATA4	0x00000021
+				SC_P_EMMC0_DATA5_CONN_EMMC0_DATA5	0x00000021
+				SC_P_EMMC0_DATA6_CONN_EMMC0_DATA6	0x00000021
+				SC_P_EMMC0_DATA7_CONN_EMMC0_DATA7	0x00000021
+				SC_P_EMMC0_STROBE_CONN_EMMC0_STROBE	0x06000041
+				SC_P_EMMC0_RESET_B_CONN_EMMC0_RESET_B	0x00000021
+			>;
+		};
+
+		pinctrl_usdhc1_100mhz: usdhc1grp100mhz {
+			fsl,pins = <
+				SC_P_EMMC0_CLK_CONN_EMMC0_CLK		0x06000040
+				SC_P_EMMC0_CMD_CONN_EMMC0_CMD		0x00000020
+				SC_P_EMMC0_DATA0_CONN_EMMC0_DATA0	0x00000020
+				SC_P_EMMC0_DATA1_CONN_EMMC0_DATA1	0x00000020
+				SC_P_EMMC0_DATA2_CONN_EMMC0_DATA2	0x00000020
+				SC_P_EMMC0_DATA3_CONN_EMMC0_DATA3	0x00000020
+				SC_P_EMMC0_DATA4_CONN_EMMC0_DATA4	0x00000020
+				SC_P_EMMC0_DATA5_CONN_EMMC0_DATA5	0x00000020
+				SC_P_EMMC0_DATA6_CONN_EMMC0_DATA6	0x00000020
+				SC_P_EMMC0_DATA7_CONN_EMMC0_DATA7	0x00000020
+				SC_P_EMMC0_STROBE_CONN_EMMC0_STROBE	0x06000040
+				SC_P_EMMC0_RESET_B_CONN_EMMC0_RESET_B	0x00000020
+			>;
+		};
+
+		pinctrl_usdhc1_200mhz: usdhc1grp200mhz {
+			fsl,pins = <
+				SC_P_EMMC0_CLK_CONN_EMMC0_CLK		0x06000040
+				SC_P_EMMC0_CMD_CONN_EMMC0_CMD		0x00000020
+				SC_P_EMMC0_DATA0_CONN_EMMC0_DATA0	0x00000020
+				SC_P_EMMC0_DATA1_CONN_EMMC0_DATA1	0x00000020
+				SC_P_EMMC0_DATA2_CONN_EMMC0_DATA2	0x00000020
+				SC_P_EMMC0_DATA3_CONN_EMMC0_DATA3	0x00000020
+				SC_P_EMMC0_DATA4_CONN_EMMC0_DATA4	0x00000020
+				SC_P_EMMC0_DATA5_CONN_EMMC0_DATA5	0x00000020
+				SC_P_EMMC0_DATA6_CONN_EMMC0_DATA6	0x00000020
+				SC_P_EMMC0_DATA7_CONN_EMMC0_DATA7	0x00000020
+				SC_P_EMMC0_STROBE_CONN_EMMC0_STROBE	0x06000040
+				SC_P_EMMC0_RESET_B_CONN_EMMC0_RESET_B	0x00000020
+			>;
+		};
+
+		pinctrl_usdhc2_gpio: usdhc2grpgpio {
+			fsl,pins = <
+				SC_P_USDHC1_DATA6_LSIO_GPIO5_IO21	0x00000021
+				SC_P_USDHC1_DATA7_LSIO_GPIO5_IO22	0x00000021
+				SC_P_USDHC1_RESET_B_LSIO_GPIO4_IO07	0x00000021
+			>;
+		};
+
+		pinctrl_usdhc2: usdhc2grp {
+			fsl,pins = <
+				SC_P_USDHC1_CLK_CONN_USDHC1_CLK		0x06000041
+				SC_P_USDHC1_CMD_CONN_USDHC1_CMD		0x00000021
+				SC_P_USDHC1_DATA0_CONN_USDHC1_DATA0	0x00000021
+				SC_P_USDHC1_DATA1_CONN_USDHC1_DATA1	0x00000021
+				SC_P_USDHC1_DATA2_CONN_USDHC1_DATA2	0x00000021
+				SC_P_USDHC1_DATA3_CONN_USDHC1_DATA3	0x00000021
+				SC_P_USDHC1_VSELECT_CONN_USDHC1_VSELECT	0x00000021
+			>;
+		};
+
+		pinctrl_usdhc2_100mhz: usdhc2grp100mhz {
+			fsl,pins = <
+				SC_P_USDHC1_CLK_CONN_USDHC1_CLK		0x06000040
+				SC_P_USDHC1_CMD_CONN_USDHC1_CMD		0x00000020
+				SC_P_USDHC1_DATA0_CONN_USDHC1_DATA0	0x00000020
+				SC_P_USDHC1_DATA1_CONN_USDHC1_DATA1	0x00000020
+				SC_P_USDHC1_DATA2_CONN_USDHC1_DATA2	0x00000020
+				SC_P_USDHC1_DATA3_CONN_USDHC1_DATA3	0x00000020
+				SC_P_USDHC1_VSELECT_CONN_USDHC1_VSELECT	0x00000020
+			>;
+		};
+
+		pinctrl_usdhc2_200mhz: usdhc2grp200mhz {
+			fsl,pins = <
+				SC_P_USDHC1_CLK_CONN_USDHC1_CLK		0x06000040
+				SC_P_USDHC1_CMD_CONN_USDHC1_CMD		0x00000020
+				SC_P_USDHC1_DATA0_CONN_USDHC1_DATA0	0x00000020
+				SC_P_USDHC1_DATA1_CONN_USDHC1_DATA1	0x00000020
+				SC_P_USDHC1_DATA2_CONN_USDHC1_DATA2	0x00000020
+				SC_P_USDHC1_DATA3_CONN_USDHC1_DATA3	0x00000020
+				SC_P_USDHC1_VSELECT_CONN_USDHC1_VSELECT	0x00000020
+			>;
+		};
+
+		pinctrl_usdhc3: usdhc3grp {
+			fsl,pins = <
+				SC_P_USDHC2_CLK_CONN_USDHC2_CLK		0x06000041
+				SC_P_USDHC2_CMD_CONN_USDHC2_CMD		0x00000021
+				SC_P_USDHC2_DATA0_CONN_USDHC2_DATA0	0x00000021
+				SC_P_USDHC2_DATA1_CONN_USDHC2_DATA1	0x00000021
+				SC_P_USDHC2_DATA2_CONN_USDHC2_DATA2	0x00000021
+				SC_P_USDHC2_DATA3_CONN_USDHC2_DATA3	0x00000021
+				/* WP */
+				SC_P_USDHC2_WP_LSIO_GPIO4_IO11		0x00000021
+				/* CD */
+				SC_P_USDHC2_CD_B_LSIO_GPIO4_IO12	0x00000021
+			>;
+		};
+
+		pinctrl_lpi2c1: lpi2c1grp {
+			fsl,pins = <
+				SC_P_GPT0_CLK_DMA_I2C1_SCL		0x06000020
+				SC_P_GPT0_CAPTURE_DMA_I2C1_SDA		0x06000020
+				/*
+				 * Change the default alt function from SCL/SDA to others,
+				 * to avoid select input conflict with GPT0
+				 */
+				SC_P_USB_SS3_TC0_LSIO_GPIO4_IO03	0x0700004c
+				SC_P_USB_SS3_TC1_LSIO_GPIO4_IO04	0x0700004c
+				SC_P_USB_SS3_TC2_LSIO_GPIO4_IO05	0x0700004c
+				SC_P_USB_SS3_TC3_LSIO_GPIO4_IO06	0x0700004c
+			>;
+		};
+
+		pinctrl_gpio_leds: gpioledsgrp {
+			fsl,pins = <
+				SC_P_SPDIF0_TX_LSIO_GPIO2_IO15		0x00000021
+			>;
+		};
+	};
+};
+
+&gpio2 {
+	status = "okay";
+};
+
+&gpio4 {
+	status = "okay";
+};
+
+&gpio5 {
+	status = "okay";
+};
+
+&usdhc1 {
+	pinctrl-names = "default", "state_100mhz", "state_200mhz";
+	pinctrl-0 = <&pinctrl_usdhc1>;
+	pinctrl-1 = <&pinctrl_usdhc1_100mhz>;
+	pinctrl-2 = <&pinctrl_usdhc1_200mhz>;
+	bus-width = <8>;
+	non-removable;
+	status = "okay";
+};
+
+&usdhc2 {
+	pinctrl-names = "default", "state_100mhz", "state_200mhz";
+	pinctrl-0 = <&pinctrl_usdhc2>, <&pinctrl_usdhc2_gpio>;
+	pinctrl-1 = <&pinctrl_usdhc2_100mhz>, <&pinctrl_usdhc2_gpio>;
+	pinctrl-2 = <&pinctrl_usdhc2_200mhz>, <&pinctrl_usdhc2_gpio>;
+	bus-width = <4>;
+	cd-gpios = <&gpio5 22 GPIO_ACTIVE_LOW>;
+	wp-gpios = <&gpio5 21 GPIO_ACTIVE_HIGH>;
+	vmmc-supply = <&reg_usdhc2_vmmc>;
+	status = "okay";
+};
+
+&usdhc3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usdhc3>;
+	bus-width = <4>;
+	cd-gpios = <&gpio4 12 GPIO_ACTIVE_LOW>;
+	wp-gpios = <&gpio4 11 GPIO_ACTIVE_HIGH>;
+	status = "okay";
+};
+
+&fec1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_fec1>;
+	phy-mode = "rgmii";
+	phy-handle = <&ethphy0>;
+	fsl,ar8031-phy-fixup;
+	fsl,magic-packet;
+	status = "okay";
+
+	mdio {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		ethphy0: ethernet-phy@0 {
+			compatible = "ethernet-phy-ieee802.3-c22";
+			reg = <0>;
+		};
+
+		ethphy1: ethernet-phy@1 {
+			compatible = "ethernet-phy-ieee802.3-c22";
+			reg = <1>;
+		};
+	};
+};
+
+&fec2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_fec2>;
+	phy-mode = "rgmii";
+	phy-handle = <&ethphy1>;
+	fsl,ar8031-phy-fixup;
+	fsl,magic-packet;
+	status = "okay";
+};
+
+&i2c1 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	clock-frequency = <100000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_lpi2c1>;
+	status = "okay";
+
+	pca9557_a: gpio@18 {
+		compatible = "nxp,pca9557";
+		reg = <0x18>;
+		gpio-controller;
+		#gpio-cells = <2>;
+	};
+
+	pca9557_b: gpio@19 {
+		compatible = "nxp,pca9557";
+		reg = <0x19>;
+		gpio-controller;
+		#gpio-cells = <2>;
+	};
+
+	pca9557_c: gpio@1b {
+		compatible = "nxp,pca9557";
+		reg = <0x1b>;
+		gpio-controller;
+		#gpio-cells = <2>;
+	};
+
+	pca9557_d: gpio@1f {
+		compatible = "nxp,pca9557";
+		reg = <0x1f>;
+		gpio-controller;
+		#gpio-cells = <2>;
+	};
+};
+
+&lpuart0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_lpuart0>;
+	status = "okay";
+};
+
+&lpuart1 {
+	status = "okay";
+};