arm64: dts: imx: Add i.mx8mq nitrogen8m basic dts support

Add basic dts support for i.MX8MQ NITROGEN8M.

Signed-off-by: Gary Bisson <gary.bisson@boundarydevices.com>
Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
[Dafna: porting vendor's code to mainline]
Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

2 files changed, 406 insertions, 0 deletions

diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index 9efa96924c69..c0e6579c3ae8 100644
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile
@@ -24,6 +24,7 @@ dtb-$(CONFIG_ARCH_LAYERSCAPE) += fsl-lx2160a-rdb.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mm-evk.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mq-evk.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mq-librem5-devkit.dtb
+dtb-$(CONFIG_ARCH_MXC) += imx8mq-nitrogen.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mq-pico-pi.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mq-zii-ultra-rmb3.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mq-zii-ultra-zest.dtb
diff --git a/arch/arm64/boot/dts/freescale/imx8mq-nitrogen.dts b/arch/arm64/boot/dts/freescale/imx8mq-nitrogen.dts
new file mode 100644
index 000000000000..c832bf0fcc60
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mq-nitrogen.dts
@@ -0,0 +1,405 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright 2018 Boundary Devices
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/input/input.h>
+#include "imx8mq.dtsi"
+
+/ {
+	model = "Boundary Devices i.MX8MQ Nitrogen8M";
+	compatible = "boundary,imx8mq-nitrogen8m", "fsl,imx8mq";
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	memory@40000000 {
+		device_type = "memory";
+		reg = <0x00000000 0x40000000 0 0x80000000>;
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_gpio_keys>;
+
+		power {
+			label = "Power Button";
+			gpios = <&gpio1 7 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_POWER>;
+			wakeup-source;
+		};
+	};
+
+	reg_vref_0v9: regulator-vref-0v9 {
+		compatible = "regulator-fixed";
+		regulator-name = "vref-0v9";
+		regulator-min-microvolt = <900000>;
+		regulator-max-microvolt = <900000>;
+	};
+
+	reg_vref_1v8: regulator-vref-1v8 {
+		compatible = "regulator-fixed";
+		regulator-name = "vref-1v8";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+	};
+
+	reg_vref_2v5: regulator-vref-2v5 {
+		compatible = "regulator-fixed";
+		regulator-name = "vref-2v5";
+		regulator-min-microvolt = <2500000>;
+		regulator-max-microvolt = <2500000>;
+	};
+
+	reg_vref_3v3: regulator-vref-3v3 {
+		compatible = "regulator-fixed";
+		regulator-name = "vref-3v3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+	};
+
+	reg_vref_5v: regulator-vref-5v {
+		compatible = "regulator-fixed";
+		regulator-name = "vref-5v";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+	};
+};
+
+
+&fec1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_fec1>;
+	phy-mode = "rgmii-id";
+	phy-handle = <&ethphy0>;
+	fsl,magic-packet;
+	status = "okay";
+
+	mdio {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		ethphy0: ethernet-phy@4 {
+			compatible = "ethernet-phy-ieee802.3-c22";
+			reg = <4>;
+			interrupts-extended = <&gpio1 11 IRQ_TYPE_LEVEL_LOW>;
+		};
+	};
+};
+
+&i2c1 {
+	clock-frequency = <400000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c1>;
+	status = "okay";
+
+	i2cmux@70 {
+		compatible = "nxp,pca9546";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_i2c1_pca9546>;
+		reg = <0x70>;
+		reset-gpios = <&gpio1 8 GPIO_ACTIVE_LOW>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		i2c1a: i2c1@0 {
+			reg = <0>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			reg_arm_dram: regulator@60 {
+				compatible = "fcs,fan53555";
+				pinctrl-names = "default";
+				pinctrl-0 = <&pinctrl_reg_arm_dram>;
+				reg = <0x60>;
+				regulator-min-microvolt =  <900000>;
+				regulator-max-microvolt = <1000000>;
+				regulator-always-on;
+				vsel-gpios = <&gpio3 24 GPIO_ACTIVE_HIGH>;
+			};
+		};
+
+		i2c1b: i2c1@1 {
+			reg = <1>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			reg_dram_1p1v: regulator@60 {
+				compatible = "fcs,fan53555";
+				pinctrl-names = "default";
+				pinctrl-0 = <&pinctrl_reg_dram_1p1v>;
+				reg = <0x60>;
+				regulator-min-microvolt = <1100000>;
+				regulator-max-microvolt = <1100000>;
+				regulator-always-on;
+				vsel-gpios = <&gpio2 11 GPIO_ACTIVE_HIGH>;
+			};
+		};
+
+		i2c1c: i2c1@2 {
+			reg = <2>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			reg_soc_gpu_vpu: regulator@60 {
+				compatible = "fcs,fan53555";
+				pinctrl-names = "default";
+				pinctrl-0 = <&pinctrl_reg_soc_gpu_vpu>;
+				reg = <0x60>;
+				regulator-min-microvolt =  <900000>;
+				regulator-max-microvolt = <1000000>;
+				regulator-always-on;
+				vsel-gpios = <&gpio2 20 GPIO_ACTIVE_HIGH>;
+			};
+		};
+
+		i2c1d: i2c1@3 {
+			reg = <3>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			rtc@68 {
+				compatible = "microcrystal,rv4162";
+				pinctrl-names = "default";
+				pinctrl-0 = <&pinctrl_i2c1d_rv4162>;
+				reg = <0x68>;
+				interrupts-extended = <&gpio1 6 IRQ_TYPE_LEVEL_LOW>;
+				wakeup-source;
+			};
+		};
+	};
+};
+
+&uart1 { /* console */
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart1>;
+	assigned-clocks = <&clk IMX8MQ_CLK_UART1>;
+	assigned-clock-parents = <&clk IMX8MQ_CLK_25M>;
+	status = "okay";
+};
+
+&uart2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart2>;
+	assigned-clocks = <&clk IMX8MQ_CLK_UART2>;
+	assigned-clock-parents = <&clk IMX8MQ_CLK_25M>;
+	status = "okay";
+};
+
+&usdhc1 {
+	bus-width = <8>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usdhc1>;
+	non-removable;
+	vmmc-supply = <&reg_vref_1v8>;
+	status = "okay";
+};
+
+&wdog1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_wdog>;
+	fsl,ext-reset-output;
+	status = "okay";
+};
+
+&iomuxc {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_hog>;
+
+	pinctrl_hog: hoggrp {
+		fsl,pins = <
+			/* J17 connector, odd */
+			MX8MQ_IOMUXC_SAI1_RXFS_GPIO4_IO0		0x19	/* Pin 19 */
+			MX8MQ_IOMUXC_SAI1_RXC_GPIO4_IO1			0x19	/* Pin 21 */
+			MX8MQ_IOMUXC_SAI1_RXD1_GPIO4_IO3		0x19	/* Pin 23 */
+			MX8MQ_IOMUXC_SAI1_RXD2_GPIO4_IO4		0x19	/* Pin 25 */
+			MX8MQ_IOMUXC_SAI1_RXD3_GPIO4_IO5		0x19	/* Pin 27 */
+			MX8MQ_IOMUXC_SAI1_RXD4_GPIO4_IO6		0x19	/* Pin 29 */
+			MX8MQ_IOMUXC_SAI1_RXD5_GPIO4_IO7		0x19	/* Pin 31 */
+			MX8MQ_IOMUXC_SAI1_RXD6_GPIO4_IO8		0x19	/* Pin 33 */
+			MX8MQ_IOMUXC_SAI1_RXD7_GPIO4_IO9		0x19	/* Pin 35 */
+			MX8MQ_IOMUXC_SAI1_TXD1_GPIO4_IO13		0x19	/* Pin 39 */
+			MX8MQ_IOMUXC_SAI1_TXD2_GPIO4_IO14		0x19	/* Pin 41 */
+			MX8MQ_IOMUXC_SAI1_TXD3_GPIO4_IO15		0x19	/* Pin 43 */
+			MX8MQ_IOMUXC_SAI1_TXD4_GPIO4_IO16		0x19	/* Pin 45 */
+			MX8MQ_IOMUXC_SAI1_TXD5_GPIO4_IO17		0x19	/* Pin 47 */
+			MX8MQ_IOMUXC_SAI1_TXD6_GPIO4_IO18		0x19	/* Pin 49 */
+			MX8MQ_IOMUXC_SAI1_TXD7_GPIO4_IO19		0x19	/* Pin 51 */
+
+			/* J17 connector, even */
+			MX8MQ_IOMUXC_SAI3_RXFS_GPIO4_IO28		0x19	/* Pin 44 */
+			MX8MQ_IOMUXC_SAI3_RXC_GPIO4_IO29		0x19	/* Pin 48 */
+			MX8MQ_IOMUXC_GPIO1_IO10_GPIO1_IO10		0x19	/* Pin 50 */
+			MX8MQ_IOMUXC_GPIO1_IO03_GPIO1_IO3		0x19	/* Pin 54 */
+			MX8MQ_IOMUXC_GPIO1_IO05_GPIO1_IO5		0x19	/* Pin 56 */
+
+			/* J18 connector, odd */
+			MX8MQ_IOMUXC_NAND_CE3_B_GPIO3_IO4		0x19	/* Pin 41 */
+			MX8MQ_IOMUXC_NAND_CLE_GPIO3_IO5			0x19	/* Pin 43 */
+			MX8MQ_IOMUXC_NAND_READY_B_GPIO3_IO16		0x19	/* Pin 45 */
+			MX8MQ_IOMUXC_NAND_DATA05_GPIO3_IO11		0x19	/* Pin 47 */
+			MX8MQ_IOMUXC_NAND_WP_B_GPIO3_IO18		0x19	/* Pin 49 */
+			MX8MQ_IOMUXC_NAND_DQS_GPIO3_IO14		0x19	/* Pin 53 */
+
+			/* J18 connector, even */
+			MX8MQ_IOMUXC_NAND_ALE_GPIO3_IO0			0x19	/* Pin 32 */
+			MX8MQ_IOMUXC_NAND_CE0_B_GPIO3_IO1		0x19	/* Pin 36 */
+			MX8MQ_IOMUXC_NAND_DATA00_GPIO3_IO6		0x19	/* Pin 38 */
+			MX8MQ_IOMUXC_NAND_DATA01_GPIO3_IO7		0x19	/* Pin 40 */
+			MX8MQ_IOMUXC_NAND_DATA02_GPIO3_IO8		0x19	/* Pin 42 */
+			MX8MQ_IOMUXC_NAND_DATA03_GPIO3_IO9		0x19	/* Pin 44 */
+			MX8MQ_IOMUXC_NAND_DATA04_GPIO3_IO10		0x19	/* Pin 46 */
+
+			/* J13 Pin 2, WL_WAKE */
+			MX8MQ_IOMUXC_SAI5_RXD2_GPIO3_IO23		0xd6
+			/* J13 Pin 4, WL_IRQ, not needed for Silex */
+			MX8MQ_IOMUXC_SAI5_RXD0_GPIO3_IO21		0xd6
+			/* J13 pin 9, unused */
+			MX8MQ_IOMUXC_SD2_CD_B_GPIO2_IO12		0x19
+			/* J13 Pin 41, BT_CLK_REQ */
+			MX8MQ_IOMUXC_SAI5_RXD1_GPIO3_IO22		0xd6
+			/* J13 Pin 42, BT_HOST_WAKE */
+			MX8MQ_IOMUXC_SAI5_MCLK_GPIO3_IO25		0xd6
+
+			/* Clock for both CSI1 and CSI2 */
+			MX8MQ_IOMUXC_GPIO1_IO15_CCMSRCGPCMIX_CLKO2	0x07
+			/* test points */
+			MX8MQ_IOMUXC_GPIO1_IO04_GPIO1_IO4		0xc1	/* TP87 */
+		>;
+	};
+
+	pinctrl_fec1: fec1grp {
+		fsl,pins = <
+			MX8MQ_IOMUXC_ENET_MDC_ENET1_MDC			0x3
+			MX8MQ_IOMUXC_ENET_MDIO_ENET1_MDIO		0x23
+			MX8MQ_IOMUXC_ENET_TX_CTL_ENET1_RGMII_TX_CTL	0x1f
+			MX8MQ_IOMUXC_ENET_TXC_ENET1_RGMII_TXC		0x1f
+			MX8MQ_IOMUXC_ENET_TD0_ENET1_RGMII_TD0		0x1f
+			MX8MQ_IOMUXC_ENET_TD1_ENET1_RGMII_TD1		0x1f
+			MX8MQ_IOMUXC_ENET_TD2_ENET1_RGMII_TD2		0x1f
+			MX8MQ_IOMUXC_ENET_TD3_ENET1_RGMII_TD3		0x1f
+			MX8MQ_IOMUXC_ENET_RX_CTL_ENET1_RGMII_RX_CTL	0x91
+			MX8MQ_IOMUXC_ENET_RXC_ENET1_RGMII_RXC		0x91
+			MX8MQ_IOMUXC_ENET_RD0_ENET1_RGMII_RD0		0x91
+			MX8MQ_IOMUXC_ENET_RD1_ENET1_RGMII_RD1		0x91
+			MX8MQ_IOMUXC_ENET_RD2_ENET1_RGMII_RD2		0x91
+			MX8MQ_IOMUXC_ENET_RD3_ENET1_RGMII_RD3		0x91
+			MX8MQ_IOMUXC_GPIO1_IO09_GPIO1_IO9		0x19
+			MX8MQ_IOMUXC_GPIO1_IO11_GPIO1_IO11		0x59
+		>;
+	};
+
+	pinctrl_gpio_keys: gpio-keysgrp {
+		fsl,pins = <
+			MX8MQ_IOMUXC_GPIO1_IO07_GPIO1_IO7		0x19
+		>;
+	};
+
+
+	pinctrl_i2c1: i2c1grp {
+		fsl,pins = <
+			MX8MQ_IOMUXC_I2C1_SCL_I2C1_SCL			0x4000007f
+			MX8MQ_IOMUXC_I2C1_SDA_I2C1_SDA			0x4000007f
+		>;
+	};
+
+	pinctrl_i2c1_pca9546: i2c1-pca9546grp {
+		fsl,pins = <
+			MX8MQ_IOMUXC_GPIO1_IO08_GPIO1_IO8		0x49
+		>;
+	};
+
+	pinctrl_i2c1d_rv4162: i2c1d-rv4162grp {
+		fsl,pins = <
+			MX8MQ_IOMUXC_GPIO1_IO06_GPIO1_IO6		0x49
+		>;
+	};
+
+	pinctrl_reg_arm_dram: reg-arm-dramgrp {
+		fsl,pins = <
+			MX8MQ_IOMUXC_SAI5_RXD3_GPIO3_IO24	0x16
+		>;
+	};
+
+	pinctrl_reg_dram_1p1v: reg-dram-1p1vgrp {
+		fsl,pins = <
+			MX8MQ_IOMUXC_SD1_STROBE_GPIO2_IO11	0x16
+		>;
+	};
+
+	pinctrl_reg_soc_gpu_vpu: reg-soc-gpu-vpugrp {
+		fsl,pins = <
+			MX8MQ_IOMUXC_SD2_WP_GPIO2_IO20		0x16
+		>;
+	};
+
+	pinctrl_uart1: uart1grp {
+		fsl,pins = <
+			MX8MQ_IOMUXC_UART1_RXD_UART1_DCE_RX		0x45
+			MX8MQ_IOMUXC_UART1_TXD_UART1_DCE_TX		0x45
+		>;
+	};
+
+	pinctrl_uart2: uart2grp {
+		fsl,pins = <
+			MX8MQ_IOMUXC_UART2_RXD_UART2_DCE_RX		0x45
+			MX8MQ_IOMUXC_UART2_TXD_UART2_DCE_TX		0x45
+		>;
+	};
+
+	pinctrl_usdhc1: usdhc1grp {
+		fsl,pins = <
+			MX8MQ_IOMUXC_SD1_CLK_USDHC1_CLK			0x83
+			MX8MQ_IOMUXC_SD1_CMD_USDHC1_CMD			0xc3
+			MX8MQ_IOMUXC_SD1_DATA0_USDHC1_DATA0		0xc3
+			MX8MQ_IOMUXC_SD1_DATA1_USDHC1_DATA1		0xc3
+			MX8MQ_IOMUXC_SD1_DATA2_USDHC1_DATA2		0xc3
+			MX8MQ_IOMUXC_SD1_DATA3_USDHC1_DATA3		0xc3
+			MX8MQ_IOMUXC_SD1_DATA4_USDHC1_DATA4		0xc3
+			MX8MQ_IOMUXC_SD1_DATA5_USDHC1_DATA5		0xc3
+			MX8MQ_IOMUXC_SD1_DATA6_USDHC1_DATA6		0xc3
+			MX8MQ_IOMUXC_SD1_DATA7_USDHC1_DATA7		0xc3
+			MX8MQ_IOMUXC_SD1_RESET_B_GPIO2_IO10		0x41
+		>;
+	};
+
+	pinctrl_usdhc1_100mhz: usdhc1-100mhzgrp {
+		fsl,pins = <
+			MX8MQ_IOMUXC_SD1_CLK_USDHC1_CLK			0x8d
+			MX8MQ_IOMUXC_SD1_CMD_USDHC1_CMD			0xcd
+			MX8MQ_IOMUXC_SD1_DATA0_USDHC1_DATA0		0xcd
+			MX8MQ_IOMUXC_SD1_DATA1_USDHC1_DATA1		0xcd
+			MX8MQ_IOMUXC_SD1_DATA2_USDHC1_DATA2		0xcd
+			MX8MQ_IOMUXC_SD1_DATA3_USDHC1_DATA3		0xcd
+			MX8MQ_IOMUXC_SD1_DATA4_USDHC1_DATA4		0xcd
+			MX8MQ_IOMUXC_SD1_DATA5_USDHC1_DATA5		0xcd
+			MX8MQ_IOMUXC_SD1_DATA6_USDHC1_DATA6		0xcd
+			MX8MQ_IOMUXC_SD1_DATA7_USDHC1_DATA7		0xcd
+		>;
+	};
+
+	pinctrl_usdhc1_200mhz: usdhc1-200mhzgrp {
+		fsl,pins = <
+			MX8MQ_IOMUXC_SD1_CLK_USDHC1_CLK			0x9f
+			MX8MQ_IOMUXC_SD1_CMD_USDHC1_CMD			0xdf
+			MX8MQ_IOMUXC_SD1_DATA0_USDHC1_DATA0		0xdf
+			MX8MQ_IOMUXC_SD1_DATA1_USDHC1_DATA1		0xdf
+			MX8MQ_IOMUXC_SD1_DATA2_USDHC1_DATA2		0xdf
+			MX8MQ_IOMUXC_SD1_DATA3_USDHC1_DATA3		0xdf
+			MX8MQ_IOMUXC_SD1_DATA4_USDHC1_DATA4		0xdf
+			MX8MQ_IOMUXC_SD1_DATA5_USDHC1_DATA5		0xdf
+			MX8MQ_IOMUXC_SD1_DATA6_USDHC1_DATA6		0xdf
+			MX8MQ_IOMUXC_SD1_DATA7_USDHC1_DATA7		0xdf
+		>;
+	};
+
+	pinctrl_wdog: wdoggrp {
+		fsl,pins = <
+		MX8MQ_IOMUXC_GPIO1_IO02_WDOG1_WDOG_B	0xc6
+		>;
+	};
+};