arm64: dts: imx8mp: Add Boundary Device Nitrogen8MP Universal SMARC Carrier Board

Adds the DTSI file for the Nitrogen8MP SMARC System on Module which
is delivered with the Nitrogen8MP Universal SMARC Carrier Board.

Initial support includes:
- Serial console
- eMMC
- SD card

Signed-off-by: Bhavin Sharma <bhavin.sharma@siliconsignals.io>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

3 files changed, 366 insertions, 0 deletions

diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index 7c4b4b717351..42e6482a31cb 100644
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile
@@ -184,6 +184,7 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mp-kontron-dl.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-kontron-smarc-eval-carrier.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-msc-sm2s-ep1.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-navqp.dtb
+dtb-$(CONFIG_ARCH_MXC) += imx8mp-nitrogen-smarc-universal-board.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-phyboard-pollux-rdk.dtb
 imx8mp-phyboard-pollux-rdk-no-eth-dtbs += imx8mp-phyboard-pollux-rdk.dtb imx8mp-phycore-no-eth.dtbo
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-phyboard-pollux-rdk-no-eth.dtb
diff --git a/arch/arm64/boot/dts/freescale/imx8mp-nitrogen-smarc-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mp-nitrogen-smarc-som.dtsi
new file mode 100644
index 000000000000..5da0f1b3ed8a
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mp-nitrogen-smarc-som.dtsi
@@ -0,0 +1,348 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright 2023 Boundary Devices
+ * Copyright 2024 Silicon Signals Pvt. Ltd.
+ *
+ * Author : Bhavin Sharma <bhavin.sharma@siliconsignals.io>
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/leds/common.h>
+#include "imx8mp.dtsi"
+
+/ {
+	model = "Boundary Device Nitrogen8MP SMARC SoM";
+	compatible = "boundary,imx8mp-nitrogen-smarc-som", "fsl,imx8mp";
+
+	chosen {
+		stdout-path = &uart2;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_gpio_led>;
+
+		led-0 {
+			function = LED_FUNCTION_POWER;
+			gpios = <&gpio1 10 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "heartbeat";
+		};
+	};
+
+	reg_usdhc2_vmmc: regulator-usdhc2-vmmc {
+	        compatible = "regulator-fixed";
+	        regulator-name = "VSD_3V3";
+	        regulator-min-microvolt = <3300000>;
+	        regulator-max-microvolt = <3300000>;
+	        gpios = <&gpio2 19 GPIO_ACTIVE_HIGH>;
+	        enable-active-high;
+	};
+};
+
+&A53_0 {
+        cpu-supply = <&buck2>;
+};
+
+&A53_1 {
+        cpu-supply = <&buck2>;
+};
+
+&A53_2 {
+        cpu-supply = <&buck2>;
+};
+
+&A53_3 {
+        cpu-supply = <&buck2>;
+};
+
+&i2c1 {
+	clock-frequency = <400000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c1>;
+	status = "okay";
+
+	pmic@25 {
+		compatible = "nxp,pca9450c";
+		reg = <0x25>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_pmic>;
+		interrupt-parent = <&gpio1>;
+		interrupts = <14 IRQ_TYPE_LEVEL_LOW>;
+
+		regulators {
+			buck1: BUCK1 {
+				regulator-name = "BUCK1";
+				regulator-min-microvolt = <600000>;
+				regulator-max-microvolt = <2187500>;
+				regulator-boot-on;
+				regulator-always-on;
+				regulator-ramp-delay = <3125>;
+			};
+
+			buck2: BUCK2 {
+				regulator-name = "BUCK2";
+				regulator-min-microvolt = <600000>;
+				regulator-max-microvolt = <2187500>;
+				regulator-boot-on;
+				regulator-always-on;
+				regulator-ramp-delay = <3125>;
+				nxp,dvs-run-voltage = <950000>;
+				nxp,dvs-standby-voltage = <850000>;
+			};
+
+			buck4: BUCK4 {
+				regulator-name = "BUCK4";
+				regulator-min-microvolt = <600000>;
+				regulator-max-microvolt = <3400000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			buck5: BUCK5 {
+				regulator-name = "BUCK5";
+				regulator-min-microvolt = <600000>;
+				regulator-max-microvolt = <3400000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			buck6: BUCK6 {
+				regulator-name = "BUCK6";
+				regulator-min-microvolt = <600000>;
+				regulator-max-microvolt = <3400000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			ldo1: LDO1 {
+				regulator-name = "LDO1";
+				regulator-min-microvolt = <1600000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			ldo2: LDO2 {
+				regulator-name = "LDO2";
+				regulator-min-microvolt = <800000>;
+				regulator-max-microvolt = <1150000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			ldo3: LDO3 {
+				regulator-name = "LDO3";
+				regulator-min-microvolt = <800000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			ldo4: LDO4 {
+				regulator-name = "LDO4";
+				regulator-min-microvolt = <800000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			ldo5: LDO5 {
+				regulator-name = "LDO5";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+		};
+	};
+};
+
+&i2c6 {
+	clock-frequency = <100000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c6>;
+	status = "okay";
+
+	mcp23018: gpio@20 {
+		compatible = "microchip,mcp23018";
+		gpio-controller;
+		#gpio-cells = <0x2>;
+		reg = <0x20>;
+		interrupts-extended = <&gpio4 22 IRQ_TYPE_LEVEL_LOW>;
+		interrupt-controller;
+		#interrupt-cells = <0x2>;
+		microchip,irq-mirror;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_mcp23018>;
+		reset-gpios = <&gpio4 27 GPIO_ACTIVE_LOW>;
+	};
+};
+
+/* Console */
+&uart2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart2>;
+	status = "okay";
+};
+
+/* SD-card */
+&usdhc2 {
+	pinctrl-names = "default", "state_100mhz", "state_200mhz";
+	pinctrl-0 = <&pinctrl_usdhc2>;
+	pinctrl-1 = <&pinctrl_usdhc2_100mhz>;
+	pinctrl-2 = <&pinctrl_usdhc2_200mhz>;
+	cd-gpios = <&gpio2 12 GPIO_ACTIVE_LOW>;
+	vmmc-supply = <&reg_usdhc2_vmmc>;
+	bus-width = <4>;
+	status = "okay";
+};
+
+/* eMMC */
+&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";
+};
+
+&wdog1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_wdog>;
+	fsl,ext-reset-output;
+	status = "okay";
+};
+
+&iomuxc {
+	pinctrl_gpio_led: gpioledgrp {
+		fsl,pins = <
+		        MX8MP_IOMUXC_GPIO1_IO10__GPIO1_IO10                     	0x19
+		>;
+	};
+
+	pinctrl_i2c1: i2c1grp {
+		fsl,pins = <
+			MX8MP_IOMUXC_I2C1_SCL__I2C1_SCL					0x400001c3
+			MX8MP_IOMUXC_I2C1_SDA__I2C1_SDA					0x400001c3
+		>;
+	};
+
+	pinctrl_i2c6: i2c6grp {
+		fsl,pins = <
+		        MX8MP_IOMUXC_SAI5_RXFS__I2C6_SCL            			0x400001c3
+		        MX8MP_IOMUXC_SAI5_RXC__I2C6_SDA                 		0x400001c3
+		>;
+	};
+
+	pinctrl_mcp23018: mcp23018grp {
+		fsl,pins = <
+		        MX8MP_IOMUXC_SAI2_RXC__GPIO4_IO22            			0x1c0
+			MX8MP_IOMUXC_SAI2_MCLK__GPIO4_IO27             			0x100
+		>;
+	};
+
+	pinctrl_pmic: pmicgrp {
+		fsl,pins = <
+			MX8MP_IOMUXC_GPIO1_IO14__GPIO1_IO14				0x1c0
+		>;
+	};
+
+	pinctrl_uart2: uart2grp {
+		fsl,pins = <
+			MX8MP_IOMUXC_UART2_RXD__UART2_DCE_RX                            0x40
+			MX8MP_IOMUXC_UART2_TXD__UART2_DCE_TX                            0x40
+		>;
+	};
+
+	pinctrl_usdhc1: usdhc1grp {
+		fsl,pins = <
+			MX8MP_IOMUXC_SD1_CLK__USDHC1_CLK        			0x10
+			MX8MP_IOMUXC_SD1_CMD__USDHC1_CMD        			0x150
+			MX8MP_IOMUXC_SD1_DATA0__USDHC1_DATA0    			0x150
+			MX8MP_IOMUXC_SD1_DATA1__USDHC1_DATA1    			0x150
+			MX8MP_IOMUXC_SD1_DATA2__USDHC1_DATA2    			0x150
+			MX8MP_IOMUXC_SD1_DATA3__USDHC1_DATA3    			0x150
+			MX8MP_IOMUXC_SD1_DATA4__USDHC1_DATA4    			0x150
+			MX8MP_IOMUXC_SD1_DATA5__USDHC1_DATA5    			0x150
+			MX8MP_IOMUXC_SD1_DATA6__USDHC1_DATA6    			0x150
+			MX8MP_IOMUXC_SD1_DATA7__USDHC1_DATA7    			0x150
+			MX8MP_IOMUXC_SD1_STROBE__USDHC1_STROBE  			0x10
+			MX8MP_IOMUXC_SD1_RESET_B__USDHC1_RESET_B 			0x140
+		>;
+	};
+
+	pinctrl_usdhc1_100mhz: usdhc1-100mhzgrp {
+		fsl,pins = <
+			MX8MP_IOMUXC_SD1_CLK__USDHC1_CLK        			0x14
+			MX8MP_IOMUXC_SD1_CMD__USDHC1_CMD        			0x154
+			MX8MP_IOMUXC_SD1_DATA0__USDHC1_DATA0    			0x154
+			MX8MP_IOMUXC_SD1_DATA1__USDHC1_DATA1    			0x154
+			MX8MP_IOMUXC_SD1_DATA2__USDHC1_DATA2    			0x154
+			MX8MP_IOMUXC_SD1_DATA3__USDHC1_DATA3    			0x154
+			MX8MP_IOMUXC_SD1_DATA4__USDHC1_DATA4    			0x154
+			MX8MP_IOMUXC_SD1_DATA5__USDHC1_DATA5    			0x154
+			MX8MP_IOMUXC_SD1_DATA6__USDHC1_DATA6    			0x154
+			MX8MP_IOMUXC_SD1_DATA7__USDHC1_DATA7    			0x154
+			MX8MP_IOMUXC_SD1_STROBE__USDHC1_STROBE  			0x14
+		>;
+	};
+
+	pinctrl_usdhc1_200mhz: usdhc1-200mhzgrp {
+		fsl,pins = <
+			MX8MP_IOMUXC_SD1_CLK__USDHC1_CLK        			0x12
+			MX8MP_IOMUXC_SD1_CMD__USDHC1_CMD        			0x152
+			MX8MP_IOMUXC_SD1_DATA0__USDHC1_DATA0    			0x152
+			MX8MP_IOMUXC_SD1_DATA1__USDHC1_DATA1    			0x152
+			MX8MP_IOMUXC_SD1_DATA2__USDHC1_DATA2    			0x152
+			MX8MP_IOMUXC_SD1_DATA3__USDHC1_DATA3    			0x152
+			MX8MP_IOMUXC_SD1_DATA4__USDHC1_DATA4    			0x152
+			MX8MP_IOMUXC_SD1_DATA5__USDHC1_DATA5    			0x152
+			MX8MP_IOMUXC_SD1_DATA6__USDHC1_DATA6    			0x152
+			MX8MP_IOMUXC_SD1_DATA7__USDHC1_DATA7    			0x152
+			MX8MP_IOMUXC_SD1_STROBE__USDHC1_STROBE  			0x12
+		>;
+	};
+
+	pinctrl_usdhc2: usdhc2grp {
+		fsl,pins = <
+			MX8MP_IOMUXC_SD2_CLK__USDHC2_CLK                                0x190
+			MX8MP_IOMUXC_SD2_CMD__USDHC2_CMD                                0x1d0
+			MX8MP_IOMUXC_SD2_DATA0__USDHC2_DATA0                            0x1d0
+			MX8MP_IOMUXC_SD2_DATA1__USDHC2_DATA1                            0x1d0
+			MX8MP_IOMUXC_SD2_DATA2__USDHC2_DATA2                            0x1d0
+			MX8MP_IOMUXC_SD2_DATA3__USDHC2_DATA3                            0x1d0
+		>;
+	};
+
+	pinctrl_usdhc2_100mhz: usdhc2-100mhzgrp {
+		fsl,pins = <
+			MX8MP_IOMUXC_SD2_CLK__USDHC2_CLK                                0x194
+			MX8MP_IOMUXC_SD2_CMD__USDHC2_CMD                                0x1d4
+			MX8MP_IOMUXC_SD2_DATA0__USDHC2_DATA0                            0x1d4
+			MX8MP_IOMUXC_SD2_DATA1__USDHC2_DATA1                            0x1d4
+			MX8MP_IOMUXC_SD2_DATA2__USDHC2_DATA2                            0x1d4
+			MX8MP_IOMUXC_SD2_DATA3__USDHC2_DATA3                            0x1d4
+		>;
+	};
+
+	pinctrl_usdhc2_200mhz: usdhc2-200mhzgrp {
+		fsl,pins = <
+			MX8MP_IOMUXC_SD2_CLK__USDHC2_CLK                                0x196
+			MX8MP_IOMUXC_SD2_CMD__USDHC2_CMD                                0x1d6
+			MX8MP_IOMUXC_SD2_DATA0__USDHC2_DATA0                            0x1d6
+			MX8MP_IOMUXC_SD2_DATA1__USDHC2_DATA1                            0x1d6
+			MX8MP_IOMUXC_SD2_DATA2__USDHC2_DATA2                            0x1d6
+			MX8MP_IOMUXC_SD2_DATA3__USDHC2_DATA3                            0x1d6
+		>;
+	};
+
+	pinctrl_wdog: wdoggrp {
+		fsl,pins = <
+			MX8MP_IOMUXC_GPIO1_IO02__WDOG1_WDOG_B				0x140
+		>;
+	};
+};
diff --git a/arch/arm64/boot/dts/freescale/imx8mp-nitrogen-smarc-universal-board.dts b/arch/arm64/boot/dts/freescale/imx8mp-nitrogen-smarc-universal-board.dts
new file mode 100644
index 000000000000..46b243218dc8
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mp-nitrogen-smarc-universal-board.dts
@@ -0,0 +1,17 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright 2023 Boundary Devices
+ * Copyright 2024 Silicon Signals Pvt. Ltd.
+ *
+ * Author : Bhavin Sharma <bhavin.sharma@siliconsignals.io>
+ */
+
+/dts-v1/;
+
+#include "imx8mp-nitrogen-smarc-som.dtsi"
+
+/ {
+	model = "Boundary Device Nitrogen8MP Universal SMARC Carrier Board";
+	compatible = "boundary,imx8mp-nitrogen-smarc-universal-board",
+			"boundary,imx8mp-nitrogen-smarc-som", "fsl,imx8mp";
+};