Message-Id: <20211201072949.53947-3-alexander.stein@ew.tq-group.com>
Date:   Wed,  1 Dec 2021 08:29:43 +0100
From:   Alexander Stein <alexander.stein@...tq-group.com>
To:     Rob Herring <robh+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>
Cc:     Alexander Stein <alexander.stein@...tq-group.com>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Subject: [PATCH v3 2/7] arm64: dts: freescale: add initial device tree for TQMa8MQML with i.MX8MM

This adds support for TQMa8MQML module on MBa8Mx board.

Signed-off-by: Alexander Stein <alexander.stein@...tq-group.com>
---
Changes in v3:
* Fix node name for audio-codec
* Use matrix instead of array for 'fsl,pins'

Changes in v2:
* Fixed ordering in Makefile
* Renamed codec -> audio_codec
* Add USB interfaces & USB extcon & pinctrl nodes
* Fixed pinctrl node names
* Removed empty chosen node
* Removed regulator-always-on on non-switchable regulators
* Changed spi-tx-bus-width for spi-nor flash similar to commit 04aa946d57b2
  ("arm64: dts: imx8: change the spi-nor tx")
* Enabled gpu_2d and gpu_3d nodes
* Removed Ethernet PHY IRQ support (was unreliable)

 arch/arm64/boot/dts/freescale/Makefile        |   1 +
 .../dts/freescale/imx8mm-tqma8mqml-mba8mx.dts | 253 +++++++++++++
 .../boot/dts/freescale/imx8mm-tqma8mqml.dtsi  | 335 ++++++++++++++++++
 arch/arm64/boot/dts/freescale/mba8mx.dtsi     | 282 +++++++++++++++
 4 files changed, 871 insertions(+)
 create mode 100644 arch/arm64/boot/dts/freescale/imx8mm-tqma8mqml-mba8mx.dts
 create mode 100644 arch/arm64/boot/dts/freescale/imx8mm-tqma8mqml.dtsi
 create mode 100644 arch/arm64/boot/dts/freescale/mba8mx.dtsi

diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index a14a6173b765..33c21322bf15 100644
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile
@@ -40,6 +40,7 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mm-icore-mx8mm-ctouch2.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mm-icore-mx8mm-edimm2.2.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mm-kontron-n801x-s.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mm-nitrogen-r2.dtb
+dtb-$(CONFIG_ARCH_MXC) += imx8mm-tqma8mqml-mba8mx.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mm-var-som-symphony.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mm-venice-gw71xx-0x.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mm-venice-gw72xx-0x.dtb
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-tqma8mqml-mba8mx.dts b/arch/arm64/boot/dts/freescale/imx8mm-tqma8mqml-mba8mx.dts
new file mode 100644
index 000000000000..7844878788f4
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mm-tqma8mqml-mba8mx.dts
@@ -0,0 +1,253 @@
+// SPDX-License-Identifier: (GPL-2.0-or-later OR MIT)
+/*
+ * Copyright 2020-2021 TQ-Systems GmbH
+ */
+
+/dts-v1/;
+
+#include "imx8mm-tqma8mqml.dtsi"
+#include "mba8mx.dtsi"
+
+/ {
+	model = "TQ-Systems GmbH i.MX8MM TQMa8MxML on MBa8Mx";
+	compatible = "tq,imx8mm-tqma8mqml-mba8mx", "tq,imx8mm-tqma8mqml", "fsl,imx8mm";
+
+	aliases {
+		eeprom0 = &eeprom3;
+		mmc0 = &usdhc3;
+		mmc1 = &usdhc2;
+		mmc2 = &usdhc1;
+		rtc0 = &pcf85063;
+		rtc1 = &snvs_rtc;
+	};
+
+	reg_usdhc2_vmmc: regulator-vmmc {
+		compatible = "regulator-fixed";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_reg_usdhc2_vmmc>;
+		regulator-name = "VSD_3V3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		gpio = <&gpio2 19 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+		startup-delay-us = <100>;
+		off-on-delay-us = <12000>;
+	};
+
+	extcon_usbotg1: extcon-usbotg1 {
+		compatible = "linux,extcon-usb-gpio";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_usb1_extcon>;
+		id-gpio = <&gpio1 10 GPIO_ACTIVE_HIGH>;
+	};
+};
+
+&i2c1 {
+	expander2: gpio@27 {
+		compatible = "nxp,pca9555";
+		reg = <0x27>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		vcc-supply = <&reg_vcc_3v3>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_expander>;
+		interrupt-parent = <&gpio1>;
+		interrupts = <9 IRQ_TYPE_EDGE_FALLING>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+	};
+};
+
+&sai3 {
+	assigned-clocks = <&clk IMX8MM_CLK_SAI3>;
+	assigned-clock-parents = <&clk IMX8MM_AUDIO_PLL1_OUT>;
+	clock-names = "bus", "mclk0", "mclk1", "mclk2", "mclk3", "pll8k", "pll11k";
+	clocks = <&clk IMX8MM_CLK_SAI3_IPG>, <&clk IMX8MM_CLK_DUMMY>,
+		<&clk IMX8MM_CLK_SAI3_ROOT>, <&clk IMX8MM_CLK_DUMMY>,
+		<&clk IMX8MM_CLK_DUMMY>, <&clk IMX8MM_AUDIO_PLL1_OUT>,
+		<&clk IMX8MM_AUDIO_PLL2_OUT>;
+};
+
+&tlv320aic3x04 {
+	clock-names = "mclk";
+	clocks = <&clk IMX8MM_CLK_SAI3_ROOT>;
+};
+
+&uart1 {
+	assigned-clocks = <&clk IMX8MM_CLK_UART1>;
+	assigned-clock-parents = <&clk IMX8MM_SYS_PLL1_80M>;
+};
+
+&uart2 {
+	assigned-clocks = <&clk IMX8MM_CLK_UART2>;
+	assigned-clock-parents = <&clk IMX8MM_SYS_PLL1_80M>;
+};
+
+&usbotg1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usbotg1>;
+	dr_mode = "otg";
+	extcon = <&extcon_usbotg1>;
+	srp-disable;
+	hnp-disable;
+	adp-disable;
+	power-active-high;
+	over-current-active-low;
+	status = "okay";
+};
+
+&usbotg2 {
+	dr_mode = "host";
+	disable-over-current;
+	vbus-supply = <&reg_hub_vbus>;
+	status = "okay";
+};
+
+&iomuxc {
+	pinctrl_ecspi1: ecspi1grp {
+		fsl,pins = <MX8MM_IOMUXC_ECSPI1_SCLK_ECSPI1_SCLK	0x00000006>,
+			   <MX8MM_IOMUXC_ECSPI1_MOSI_ECSPI1_MOSI	0x00000006>,
+			   <MX8MM_IOMUXC_ECSPI1_MISO_ECSPI1_MISO	0x00000006>,
+			   <MX8MM_IOMUXC_ECSPI1_SS0_GPIO5_IO9		0x00000006>;
+	};
+
+	pinctrl_ecspi2: ecspi2grp {
+		fsl,pins = <MX8MM_IOMUXC_ECSPI2_SCLK_ECSPI2_SCLK	0x00000006>,
+			   <MX8MM_IOMUXC_ECSPI2_MOSI_ECSPI2_MOSI	0x00000006>,
+			   <MX8MM_IOMUXC_ECSPI2_MISO_ECSPI2_MISO	0x00000006>,
+			   <MX8MM_IOMUXC_ECSPI2_SS0_GPIO5_IO13		0x00000006>;
+	};
+
+	pinctrl_expander: expandergrp {
+		fsl,pins = <MX8MM_IOMUXC_GPIO1_IO09_GPIO1_IO9		0x94>;
+	};
+
+	pinctrl_fec1: fec1grp {
+		fsl,pins = <MX8MM_IOMUXC_ENET_MDC_ENET1_MDC		0x40000002>,
+			   <MX8MM_IOMUXC_ENET_MDIO_ENET1_MDIO		0x40000002>,
+			   <MX8MM_IOMUXC_ENET_TD3_ENET1_RGMII_TD3	0x14>,
+			   <MX8MM_IOMUXC_ENET_TD2_ENET1_RGMII_TD2	0x14>,
+			   <MX8MM_IOMUXC_ENET_TD1_ENET1_RGMII_TD1	0x14>,
+			   <MX8MM_IOMUXC_ENET_TD0_ENET1_RGMII_TD0	0x14>,
+			   <MX8MM_IOMUXC_ENET_RD3_ENET1_RGMII_RD3	0x90>,
+			   <MX8MM_IOMUXC_ENET_RD2_ENET1_RGMII_RD2	0x90>,
+			   <MX8MM_IOMUXC_ENET_RD1_ENET1_RGMII_RD1	0x90>,
+			   <MX8MM_IOMUXC_ENET_RD0_ENET1_RGMII_RD0	0x90>,
+			   <MX8MM_IOMUXC_ENET_TXC_ENET1_RGMII_TXC	0x14>,
+			   <MX8MM_IOMUXC_ENET_RXC_ENET1_RGMII_RXC	0x90>,
+			   <MX8MM_IOMUXC_ENET_RX_CTL_ENET1_RGMII_RX_CTL	0x90>,
+			   <MX8MM_IOMUXC_ENET_TX_CTL_ENET1_RGMII_TX_CTL	0x14>;
+	};
+
+	pinctrl_gpiobutton: gpiobuttongrp {
+		fsl,pins = <MX8MM_IOMUXC_GPIO1_IO05_GPIO1_IO5		0x84>,
+			   <MX8MM_IOMUXC_GPIO1_IO07_GPIO1_IO7		0x84>,
+			   <MX8MM_IOMUXC_SD1_CLK_GPIO2_IO0		0x84>;
+	};
+
+	pinctrl_gpioled: gpioledgrp {
+		fsl,pins = <MX8MM_IOMUXC_GPIO1_IO00_GPIO1_IO0		0x84>,
+			   <MX8MM_IOMUXC_NAND_DQS_GPIO3_IO14		0x84>;
+	};
+
+	pinctrl_i2c2: i2c2grp {
+		fsl,pins = <MX8MM_IOMUXC_I2C2_SCL_I2C2_SCL		0x40000004>,
+			   <MX8MM_IOMUXC_I2C2_SDA_I2C2_SDA		0x40000004>;
+	};
+
+	pinctrl_i2c2_gpio: i2c2gpiogrp {
+		fsl,pins = <MX8MM_IOMUXC_I2C2_SCL_GPIO5_IO16		0x40000004>,
+			   <MX8MM_IOMUXC_I2C2_SDA_GPIO5_IO17		0x40000004>;
+	};
+
+	pinctrl_i2c3: i2c3grp {
+		fsl,pins = <MX8MM_IOMUXC_I2C3_SCL_I2C3_SCL		0x40000004>,
+			   <MX8MM_IOMUXC_I2C3_SDA_I2C3_SDA		0x40000004>;
+	};
+
+	pinctrl_i2c3_gpio: i2c3gpiogrp {
+		fsl,pins = <MX8MM_IOMUXC_I2C3_SCL_GPIO5_IO18		0x40000004>,
+			   <MX8MM_IOMUXC_I2C3_SDA_GPIO5_IO19		0x40000004>;
+	};
+
+	pinctrl_pwm3: pwm3grp {
+		fsl,pins = <MX8MM_IOMUXC_GPIO1_IO14_PWM3_OUT		0x14>;
+	};
+
+	pinctrl_pwm4: pwm4grp {
+		fsl,pins = <MX8MM_IOMUXC_GPIO1_IO15_PWM4_OUT		0x14>;
+	};
+
+	pinctrl_sai3: sai3grp {
+		fsl,pins = <MX8MM_IOMUXC_SAI3_MCLK_SAI3_MCLK		0x94>,
+			   <MX8MM_IOMUXC_SAI3_RXC_SAI3_RX_BCLK		0x94>,
+			   <MX8MM_IOMUXC_SAI3_RXFS_SAI3_RX_SYNC		0x94>,
+			   <MX8MM_IOMUXC_SAI3_RXD_SAI3_RX_DATA0		0x94>,
+			   <MX8MM_IOMUXC_SAI3_TXFS_SAI3_TX_SYNC		0x94>,
+			   <MX8MM_IOMUXC_SAI3_TXD_SAI3_TX_DATA0		0x94>,
+			   <MX8MM_IOMUXC_SAI3_TXC_SAI3_TX_BCLK		0x94>;
+	};
+
+	pinctrl_uart1: uart1grp {
+		fsl,pins = <MX8MM_IOMUXC_UART1_RXD_UART1_DCE_RX		0x16>,
+			   <MX8MM_IOMUXC_UART1_TXD_UART1_DCE_TX		0x16>;
+	};
+
+	pinctrl_uart2: uart2grp {
+		fsl,pins = <MX8MM_IOMUXC_UART2_RXD_UART2_DCE_RX		0x16>,
+			   <MX8MM_IOMUXC_UART2_TXD_UART2_DCE_TX		0x16>;
+	};
+
+	pinctrl_uart3: uart3grp {
+		fsl,pins = <MX8MM_IOMUXC_UART3_RXD_UART3_DCE_RX		0x16>,
+			   <MX8MM_IOMUXC_UART3_TXD_UART3_DCE_TX		0x16>;
+	};
+
+	pinctrl_uart4: uart4grp {
+		fsl,pins = <MX8MM_IOMUXC_UART4_RXD_UART4_DCE_RX		0x16>,
+			   <MX8MM_IOMUXC_UART4_TXD_UART4_DCE_TX		0x16>;
+	};
+
+	pinctrl_usbotg1: usbotg1grp {
+		fsl,pins = <MX8MM_IOMUXC_GPIO1_IO12_USB1_OTG_PWR	0x84>,
+			   <MX8MM_IOMUXC_GPIO1_IO13_USB1_OTG_OC		0x84>;
+	};
+
+	pinctrl_usb1_extcon: usb1-extcongrp {
+		fsl,pins = <MX8MM_IOMUXC_GPIO1_IO10_GPIO1_IO10		0x1c0>;
+	};
+
+	pinctrl_usdhc2_gpio: usdhc2grpgpiogrp {
+		fsl,pins = <MX8MM_IOMUXC_SD2_CD_B_GPIO2_IO12		0x84>;
+	};
+
+	pinctrl_usdhc2: usdhc2grp {
+		fsl,pins = <MX8MM_IOMUXC_SD2_CLK_USDHC2_CLK		0x1d4>,
+			   <MX8MM_IOMUXC_SD2_CMD_USDHC2_CMD		0x1d4>,
+			   <MX8MM_IOMUXC_SD2_DATA0_USDHC2_DATA0		0x1d4>,
+			   <MX8MM_IOMUXC_SD2_DATA1_USDHC2_DATA1		0x1d4>,
+			   <MX8MM_IOMUXC_SD2_DATA2_USDHC2_DATA2		0x1d4>,
+			   <MX8MM_IOMUXC_SD2_DATA3_USDHC2_DATA3		0x1d4>,
+			   <MX8MM_IOMUXC_GPIO1_IO04_USDHC2_VSELECT	0x84>;
+	};
+
+	pinctrl_usdhc2_100mhz: usdhc2-100mhzgrp {
+		fsl,pins = <MX8MM_IOMUXC_SD2_CLK_USDHC2_CLK		0x1d4>,
+			   <MX8MM_IOMUXC_SD2_CMD_USDHC2_CMD		0x1d4>,
+			   <MX8MM_IOMUXC_SD2_DATA0_USDHC2_DATA0		0x1d4>,
+			   <MX8MM_IOMUXC_SD2_DATA1_USDHC2_DATA1		0x1d4>,
+			   <MX8MM_IOMUXC_SD2_DATA2_USDHC2_DATA2		0x1d4>,
+			   <MX8MM_IOMUXC_SD2_DATA3_USDHC2_DATA3		0x1d4>,
+			   <MX8MM_IOMUXC_GPIO1_IO04_USDHC2_VSELECT	0x84>;
+	};
+
+	pinctrl_usdhc2_200mhz: usdhc2-200mhzgrp {
+		fsl,pins = <MX8MM_IOMUXC_SD2_CLK_USDHC2_CLK		0x1d4>,
+			   <MX8MM_IOMUXC_SD2_CMD_USDHC2_CMD		0x1d4>,
+			   <MX8MM_IOMUXC_SD2_DATA0_USDHC2_DATA0		0x1d4>,
+			   <MX8MM_IOMUXC_SD2_DATA1_USDHC2_DATA1		0x1d4>,
+			   <MX8MM_IOMUXC_SD2_DATA2_USDHC2_DATA2		0x1d4>,
+			   <MX8MM_IOMUXC_SD2_DATA3_USDHC2_DATA3		0x1d4>,
+			   <MX8MM_IOMUXC_GPIO1_IO04_USDHC2_VSELECT	0x84>;
+	};
+};
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-tqma8mqml.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-tqma8mqml.dtsi
new file mode 100644
index 000000000000..284e62acc0b4
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mm-tqma8mqml.dtsi
@@ -0,0 +1,335 @@
+// SPDX-License-Identifier: (GPL-2.0-or-later OR MIT)
+/*
+ * Copyright 2020-2021 TQ-Systems GmbH
+ */
+
+#include "imx8mm.dtsi"
+
+/ {
+	model = "TQ-Systems GmbH i.MX8MM TQMa8MxML";
+	compatible = "tq,imx8mm-tqma8mqml", "fsl,imx8mm";
+
+	memory@...00000 {
+		device_type = "memory";
+		/*  our minimum RAM config will be 1024 MiB */
+		reg = <0x00000000 0x40000000 0 0x40000000>;
+	};
+
+	/* e-MMC IO, needed for HS modes */
+	reg_vcc1v8: regulator-vcc1v8 {
+		compatible = "regulator-fixed";
+		regulator-name = "TQMA8MXML_VCC1V8";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+	};
+
+	/* identical to buck4_reg, but should never change */
+	reg_vcc3v3: regulator-vcc3v3 {
+		compatible = "regulator-fixed";
+		regulator-name = "TQMA8MXML_VCC3V3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+	};
+
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		/* global autoconfigured region for contiguous allocations */
+		linux,cma {
+			compatible = "shared-dma-pool";
+			reusable;
+			/* 640 MiB */
+			size = <0 0x28000000>;
+			/*  1024 - 128 MiB, our minimum RAM config will be 1024 MiB */
+			alloc-ranges = <0 0x40000000 0 0x78000000>;
+			linux,cma-default;
+		};
+	};
+};
+
+&A53_0 {
+	cpu-supply = <&buck2_reg>;
+};
+
+&flexspi {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_flexspi>;
+	status = "okay";
+
+	flash0: flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		spi-max-frequency = <84000000>;
+		spi-tx-bus-width = <1>;
+		spi-rx-bus-width = <4>;
+	};
+};
+
+&gpu_2d {
+	status = "okay";
+};
+
+&gpu_3d {
+	status = "okay";
+};
+
+&i2c1 {
+	clock-frequency = <100000>;
+	pinctrl-names = "default", "gpio";
+	pinctrl-0 = <&pinctrl_i2c1>;
+	pinctrl-1 = <&pinctrl_i2c1_gpio>;
+	scl-gpios = <&gpio5 14 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+	sda-gpios = <&gpio5 15 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+	status = "okay";
+
+	sensor0: temperature-sensor-eeprom@1b {
+		compatible = "nxp,se97", "jedec,jc-42.4-temp";
+		reg = <0x1b>;
+	};
+
+	pca9450: pmic@25 {
+		compatible = "nxp,pca9450a";
+		reg = <0x25>;
+
+		/* PMIC PCA9450 PMIC_nINT GPIO1_IO08 */
+		pinctrl-0 = <&pinctrl_pmic>;
+		pinctrl-names = "default";
+		interrupt-parent = <&gpio1>;
+		interrupts = <8 IRQ_TYPE_LEVEL_LOW>;
+
+		regulators {
+			/* V_0V85_SOC: 0.85 */
+			buck1_reg: BUCK1 {
+				regulator-name = "BUCK1";
+				regulator-min-microvolt = <850000>;
+				regulator-max-microvolt = <850000>;
+				regulator-boot-on;
+				regulator-always-on;
+				regulator-ramp-delay = <3125>;
+			};
+
+			/* VDD_ARM */
+			buck2_reg: BUCK2 {
+				regulator-name = "BUCK2";
+				regulator-min-microvolt = <850000>;
+				regulator-max-microvolt = <1000000>;
+				regulator-boot-on;
+				regulator-always-on;
+				nxp,dvs-run-voltage = <950000>;
+				nxp,dvs-standby-voltage = <850000>;
+				regulator-ramp-delay = <3125>;
+			};
+
+			/* V_0V85_GPU / DRAM / VPU */
+			buck3_reg: BUCK3 {
+				regulator-name = "BUCK3";
+				regulator-min-microvolt = <850000>;
+				regulator-max-microvolt = <950000>;
+				regulator-boot-on;
+				regulator-always-on;
+				regulator-ramp-delay = <3125>;
+			};
+
+			/* VCC3V3 -> VMMC, ... must not be changed */
+			buck4_reg: BUCK4 {
+				regulator-name = "BUCK4";
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			/* V_1V8 -> VQMMC, SPI-NOR, ... must not be changed */
+			buck5_reg: BUCK5 {
+				regulator-name = "BUCK5";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			/* V_1V1 -> RAM, ... must not be changed */
+			buck6_reg: BUCK6 {
+				regulator-name = "BUCK6";
+				regulator-min-microvolt = <1100000>;
+				regulator-max-microvolt = <1100000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			/* V_1V8_SNVS */
+			ldo1_reg: LDO1 {
+				regulator-name = "LDO1";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			/* V_0V8_SNVS */
+			ldo2_reg: LDO2 {
+				regulator-name = "LDO2";
+				regulator-min-microvolt = <800000>;
+				regulator-max-microvolt = <850000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			/* V_1V8_ANA */
+			ldo3_reg: LDO3 {
+				regulator-name = "LDO3";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			/* V_0V9_MIPI */
+			ldo4_reg: LDO4 {
+				regulator-name = "LDO4";
+				regulator-min-microvolt = <900000>;
+				regulator-max-microvolt = <900000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			/* VCC SD IO - switched using SD2 VSELECT */
+			ldo5_reg: LDO5 {
+				regulator-name = "LDO5";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <3300000>;
+			};
+		};
+	};
+
+
+	pcf85063: rtc@51 {
+		compatible = "nxp,pcf85063a";
+		reg = <0x51>;
+		quartz-load-femtofarads = <7000>;
+	};
+
+	eeprom1: eeprom@53 {
+		compatible = "nxp,se97b", "atmel,24c02";
+		read-only;
+		reg = <0x53>;
+		pagesize = <16>;
+	};
+
+	eeprom0: eeprom@57 {
+		compatible = "atmel,24c64";
+		reg = <0x57>;
+		pagesize = <32>;
+	};
+};
+
+&usdhc3 {
+	pinctrl-names = "default", "state_100mhz", "state_200mhz";
+	pinctrl-0 = <&pinctrl_usdhc3>;
+	pinctrl-1 = <&pinctrl_usdhc3_100mhz>;
+	pinctrl-2 = <&pinctrl_usdhc3_200mhz>;
+	bus-width = <8>;
+	non-removable;
+	no-sd;
+	no-sdio;
+	vmmc-supply = <&reg_vcc3v3>;
+	vqmmc-supply = <&reg_vcc1v8>;
+	status = "okay";
+};
+
+/*
+ * Attention:
+ * wdog reset is routed to PMIC, PMIC must be preconfigured to force POR
+ * without LDO for SNVS. GPIO1_IO02 must not be used as GPIO.
+ */
+&wdog1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_wdog>;
+	fsl,ext-reset-output;
+	status = "okay";
+};
+
+&iomuxc {
+	pinctrl_flexspi: flexspigrp {
+		fsl,pins = <MX8MM_IOMUXC_NAND_ALE_QSPI_A_SCLK		0x82>,
+			   <MX8MM_IOMUXC_NAND_CE0_B_QSPI_A_SS0_B	0x82>,
+			   <MX8MM_IOMUXC_NAND_DATA00_QSPI_A_DATA0	0x82>,
+			   <MX8MM_IOMUXC_NAND_DATA01_QSPI_A_DATA1	0x82>,
+			   <MX8MM_IOMUXC_NAND_DATA02_QSPI_A_DATA2	0x82>,
+			   <MX8MM_IOMUXC_NAND_DATA03_QSPI_A_DATA3	0x82>;
+	};
+
+	pinctrl_i2c1: i2c1grp {
+		fsl,pins = <MX8MM_IOMUXC_I2C1_SCL_I2C1_SCL		0x40000004>,
+			   <MX8MM_IOMUXC_I2C1_SDA_I2C1_SDA		0x40000004>;
+	};
+
+	pinctrl_i2c1_gpio: i2c1gpiogrp {
+		fsl,pins = <MX8MM_IOMUXC_I2C1_SCL_GPIO5_IO14		0x40000004>,
+			   <MX8MM_IOMUXC_I2C1_SDA_GPIO5_IO15		0x40000004>;
+	};
+
+	pinctrl_pmic: pmicgrp {
+		fsl,pins = <MX8MM_IOMUXC_GPIO1_IO08_GPIO1_IO8		0x94>;
+	};
+
+	pinctrl_reg_usdhc2_vmmc: regusdhc2vmmcgrp {
+		fsl,pins = <MX8MM_IOMUXC_SD2_RESET_B_GPIO2_IO19		0x84>;
+	};
+
+	pinctrl_usdhc3: usdhc3grp {
+		fsl,pins = <MX8MM_IOMUXC_NAND_WE_B_USDHC3_CLK		0x1d4>,
+			   <MX8MM_IOMUXC_NAND_WP_B_USDHC3_CMD		0x1d2>,
+			   <MX8MM_IOMUXC_NAND_DATA04_USDHC3_DATA0	0x1d4>,
+			   <MX8MM_IOMUXC_NAND_DATA05_USDHC3_DATA1	0x1d4>,
+			   <MX8MM_IOMUXC_NAND_DATA06_USDHC3_DATA2	0x1d4>,
+			   <MX8MM_IOMUXC_NAND_DATA07_USDHC3_DATA3	0x1d4>,
+			   <MX8MM_IOMUXC_NAND_RE_B_USDHC3_DATA4		0x1d4>,
+			   <MX8MM_IOMUXC_NAND_CE2_B_USDHC3_DATA5	0x1d4>,
+			   <MX8MM_IOMUXC_NAND_CE3_B_USDHC3_DATA6	0x1d4>,
+			   <MX8MM_IOMUXC_NAND_CLE_USDHC3_DATA7		0x1d4>,
+			   <MX8MM_IOMUXC_NAND_CE1_B_USDHC3_STROBE	0x84>,
+			   /* option USDHC3_RESET_B not defined, only in RM */
+			   <MX8MM_IOMUXC_NAND_READY_B_GPIO3_IO16	0x84>;
+	};
+
+	pinctrl_usdhc3_100mhz: usdhc3-100mhzgrp {
+		fsl,pins = <MX8MM_IOMUXC_NAND_WE_B_USDHC3_CLK		0x1d2>,
+			   <MX8MM_IOMUXC_NAND_WP_B_USDHC3_CMD		0x1d2>,
+			   <MX8MM_IOMUXC_NAND_DATA04_USDHC3_DATA0	0x1d4>,
+			   <MX8MM_IOMUXC_NAND_DATA05_USDHC3_DATA1	0x1d4>,
+			   <MX8MM_IOMUXC_NAND_DATA06_USDHC3_DATA2	0x1d4>,
+			   <MX8MM_IOMUXC_NAND_DATA07_USDHC3_DATA3	0x1d4>,
+			   <MX8MM_IOMUXC_NAND_RE_B_USDHC3_DATA4		0x1d4>,
+			   <MX8MM_IOMUXC_NAND_CE2_B_USDHC3_DATA5	0x1d4>,
+			   <MX8MM_IOMUXC_NAND_CE3_B_USDHC3_DATA6	0x1d4>,
+			   <MX8MM_IOMUXC_NAND_CLE_USDHC3_DATA7		0x1d4>,
+			   <MX8MM_IOMUXC_NAND_CE1_B_USDHC3_STROBE	0x84>,
+			   /* option USDHC3_RESET_B not defined, only in RM */
+			   <MX8MM_IOMUXC_NAND_READY_B_GPIO3_IO16	0x84>;
+	};
+
+	pinctrl_usdhc3_200mhz: usdhc3-200mhzgrp {
+		fsl,pins = <MX8MM_IOMUXC_NAND_WE_B_USDHC3_CLK		0x1d6>,
+			   <MX8MM_IOMUXC_NAND_WP_B_USDHC3_CMD		0x1d2>,
+			   <MX8MM_IOMUXC_NAND_DATA04_USDHC3_DATA0	0x1d4>,
+			   <MX8MM_IOMUXC_NAND_DATA05_USDHC3_DATA1	0x1d4>,
+			   <MX8MM_IOMUXC_NAND_DATA06_USDHC3_DATA2	0x1d4>,
+			   <MX8MM_IOMUXC_NAND_DATA07_USDHC3_DATA3	0x1d4>,
+			   <MX8MM_IOMUXC_NAND_RE_B_USDHC3_DATA4		0x1d4>,
+			   <MX8MM_IOMUXC_NAND_CE2_B_USDHC3_DATA5	0x1d4>,
+			   <MX8MM_IOMUXC_NAND_CE3_B_USDHC3_DATA6	0x1d4>,
+			   <MX8MM_IOMUXC_NAND_CLE_USDHC3_DATA7		0x1d4>,
+			   <MX8MM_IOMUXC_NAND_CE1_B_USDHC3_STROBE	0x84>,
+			   /* option USDHC3_RESET_B not defined, only in RM */
+			   <MX8MM_IOMUXC_NAND_READY_B_GPIO3_IO16	0x84>;
+	};
+
+	pinctrl_wdog: wdoggrp {
+		fsl,pins = <MX8MM_IOMUXC_GPIO1_IO02_WDOG1_WDOG_B	0x84>;
+	};
+};
diff --git a/arch/arm64/boot/dts/freescale/mba8mx.dtsi b/arch/arm64/boot/dts/freescale/mba8mx.dtsi
new file mode 100644
index 000000000000..f27e3c8de916
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/mba8mx.dtsi
@@ -0,0 +1,282 @@
+// SPDX-License-Identifier: (GPL-2.0-or-later OR MIT)
+/*
+ * Copyright 2020-2021 TQ-Systems GmbH
+ */
+
+#include <dt-bindings/net/ti-dp83867.h>
+
+/* TQ-Systems GmbH MBa8Mx baseboard */
+
+/ {
+	beeper {
+		compatible = "pwm-beeper";
+		pwms = <&pwm4 0 250000 0>;
+		beeper-hz = <4000>;
+		amp-supply = <&reg_vcc_3v3>;
+	};
+
+	chosen {
+		// bootargs = "console=ttymxc2,115200 earlycon=ec_imx6q,0x30880000,115200";
+		stdout-path = &uart3;
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_gpiobutton>;
+		autorepeat;
+
+		switch1 {
+			label = "switch1";
+			linux,code = <BTN_0>;
+			gpios = <&gpio1 5 GPIO_ACTIVE_LOW>;
+			wakeup-source;
+		};
+
+		btn2: switch2 {
+			label = "switch2";
+			linux,code = <BTN_1>;
+			gpios = <&gpio2 0 GPIO_ACTIVE_LOW>;
+			wakeup-source;
+		};
+
+		switch3 {
+			label = "switch3";
+			linux,code = <BTN_2>;
+			gpios = <&gpio1 7 GPIO_ACTIVE_LOW>;
+			wakeup-source;
+		};
+	};
+
+	gpio_leds: gpio-leds {
+		compatible = "gpio-leds";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_gpioled>;
+
+		led1 {
+			label = "led1";
+			gpios = <&gpio1 0 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "default-on";
+		};
+
+		led2: led2 {
+			label = "led2";
+			gpios = <&gpio3 14 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "heartbeat";
+		};
+	};
+
+	reg_hub_vbus: regulator-hub-vbus {
+		compatible = "regulator-fixed";
+		regulator-name = "MBA8MX_HUB_VBUS";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+	};
+
+	reg_sn65dsi83_1v8: regulator-sn65dsi83-1v8 {
+		compatible = "regulator-fixed";
+		regulator-name = "SN65DSI83_1V8";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		gpio = <&expander0 5 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+
+	reg_vcc_3v3: regulator-3v3 {
+		compatible = "regulator-fixed";
+		regulator-name = "MBA8MX_3V3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+	};
+
+	sound {
+		compatible = "fsl,imx-audio-tlv320aic32x4";
+		model = "tqm-tlv320aic32";
+		ssi-controller = <&sai3>;
+		audio-codec = <&tlv320aic3x04>;
+	};
+};
+
+&ecspi1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_ecspi1>;
+	cs-gpios = <&gpio5 9 GPIO_ACTIVE_LOW>;
+	status = "okay";
+};
+
+&ecspi2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_ecspi2>;
+	cs-gpios = <&gpio5 13 GPIO_ACTIVE_LOW>;
+	status = "okay";
+};
+
+&fec1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_fec1>;
+	phy-mode = "rgmii-id";
+	phy-handle = <&ethphy0>;
+	phy-supply = <&reg_vcc_3v3>;
+	fsl,magic-packet;
+	mac-address = [ 00 00 00 00 00 00 ];
+	status = "okay";
+
+	mdio {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		ethphy0: ethernet-phy@e {
+			compatible = "ethernet-phy-ieee802.3-c22";
+			reg = <0xe>;
+			ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_50_NS>;
+			ti,tx-internal-delay = <DP83867_RGMIIDCTL_2_50_NS>;
+			ti,fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_4_B_NIB>;
+			ti,dp83867-rxctrl-strap-quirk;
+			ti,clk-output-sel = <DP83867_CLK_O_SEL_OFF>;
+			enet-phy-lane-no-swap;
+			reset-gpios = <&expander2 7 GPIO_ACTIVE_LOW>;
+			reset-assert-us = <500000>;
+			reset-deassert-us = <500>;
+		};
+	};
+};
+
+&i2c1 {
+	expander0: gpio@23 {
+		compatible = "nxp,pca9555";
+		reg = <0x23>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		vcc-supply = <&reg_vcc_3v3>;
+		interrupt-parent = <&gpio1>;
+		interrupts = <9 IRQ_TYPE_EDGE_FALLING>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+
+		sd-mux-oe-hog {
+			gpio-hog;
+			gpios = <8 0>;
+			output-low;
+			line-name = "SD_MUX_EN#";
+		};
+
+		boot-cfg-oe-hog {
+			gpio-hog;
+			gpios = <12 0>;
+			output-high;
+			line-name = "BOOT_CFG_OE#";
+		};
+
+		rst-usb-hub-hog {
+			gpio-hog;
+			gpios = <13 0>;
+			output-high;
+			line-name = "RST_USB_HUB#";
+		};
+	};
+
+	expander1: gpio@24 {
+		compatible = "nxp,pca9555";
+		reg = <0x24>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		vcc-supply = <&reg_vcc_3v3>;
+	};
+};
+
+&i2c2 {
+	clock-frequency = <100000>;
+	pinctrl-names = "default", "gpio";
+	pinctrl-0 = <&pinctrl_i2c2>;
+	pinctrl-1 = <&pinctrl_i2c2_gpio>;
+	scl-gpios = <&gpio5 16 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+	sda-gpios = <&gpio5 17 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+	status = "okay";
+
+	tlv320aic3x04: audio-codec@18 {
+		compatible = "ti,tlv320aic32x4";
+		reg = <0x18>;
+		reset-gpios = <&expander2 0 GPIO_ACTIVE_LOW>;
+		iov-supply = <&reg_vcc_3v3>;
+		ldoin-supply = <&reg_vcc_3v3>;
+	};
+
+	sensor1: sensor@1f {
+		compatible = "nxp,se97", "jedec,jc-42.4-temp";
+		reg = <0x1f>;
+	};
+
+	eeprom3: eeprom@57 {
+		compatible = "nxp,se97b", "atmel,24c02";
+		reg = <0x57>;
+		pagesize = <16>;
+	};
+};
+
+&i2c3 {
+	clock-frequency = <100000>;
+	pinctrl-names = "default", "gpio";
+	pinctrl-0 = <&pinctrl_i2c3>;
+	pinctrl-1 = <&pinctrl_i2c3_gpio>;
+	scl-gpios = <&gpio5 18 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+	sda-gpios = <&gpio5 19 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+	status = "okay";
+};
+
+&pwm3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_pwm3>;
+	status = "okay";
+};
+
+&pwm4 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_pwm4>;
+	status = "okay";
+};
+
+&sai3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_sai3>;
+	#sound-dai-cells = <0>;
+	assigned-clock-rates = <49152000>;
+	status = "okay";
+};
+
+&snvs_pwrkey {
+	status = "okay";
+};
+
+&uart1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart1>;
+	status = "okay";
+};
+
+&uart2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart2>;
+	status = "okay";
+};
+
+/* console */
+&uart3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart3>;
+	status = "okay";
+};
+
+/* UART4 is assigned to Cortex-M4 */
+&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 = <&gpio2 12 GPIO_ACTIVE_LOW>;
+	disable-wp;
+	no-mmc;
+	no-sdio;
+	vmmc-supply = <&reg_usdhc2_vmmc>;
+	status = "okay";
+};
-- 
2.25.1

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