arm64: dts: imx8mm: Add i.MX8M Mini Toradex Verdin based Menlo board

Add new board based on the Toradex Verdin iMX8M Mini SoM, the MX8Menlo.
The board is a compatible replacement for i.MX53 M53Menlo and features
USB, multiple UARTs, ethernet, LEDs, SD and eMMC.

Reviewed-by: Fabio Estevam <festevam@denx.de>
Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <festevam@denx.de>
Cc: Francesco Dolcini <francesco.dolcini@toradex.com>
Cc: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: NXP Linux Team <linux-imx@nxp.com>
To: linux-arm-kernel@lists.infradead.org
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

2 files changed, 322 insertions, 0 deletions

diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index 851e6faf8c05..cdf9dfcbe020 100644
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile
@@ -56,6 +56,7 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mm-evk.dtb
 dtb-$(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-$(CONFIG_ARCH_MXC) += imx8mm-mx8menlo.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mm-nitrogen-r2.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mm-tqma8mqml-mba8mx.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mm-var-som-symphony.dtb
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-mx8menlo.dts b/arch/arm64/boot/dts/freescale/imx8mm-mx8menlo.dts
new file mode 100644
index 000000000000..c20db0c550da
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mm-mx8menlo.dts
@@ -0,0 +1,321 @@
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+/*
+ * Copyright 2021-2022 Marek Vasut <marex@denx.de>
+ */
+
+/dts-v1/;
+
+#include "imx8mm-verdin.dtsi"
+
+/ {
+	model = "MENLO MX8MM EMBEDDED DEVICE";
+	compatible = "menlo,mx8menlo",
+		     "toradex,verdin-imx8mm",
+		     "fsl,imx8mm";
+
+	/delete-node/ gpio-keys;
+
+	leds {
+		compatible = "gpio-leds";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_led>;
+
+		user1 {
+			label = "TestLed601";
+			gpios = <&gpio4 18 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "mmc0";
+		};
+
+		user2 {
+			label = "TestLed602";
+			gpios = <&gpio4 10 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "heartbeat";
+		};
+	};
+
+	beeper {
+		compatible = "gpio-beeper";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_beeper>;
+		gpios = <&gpio5 3 GPIO_ACTIVE_HIGH>;
+	};
+
+	/* Fixed clock dedicated to SPI CAN on carrier board */
+	clk_xtal20: clk-xtal20 {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <20000000>;
+	};
+};
+
+&ecspi1 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_ecspi1>;
+	cs-gpios = <&gpio5 9 GPIO_ACTIVE_LOW>;
+	status = "okay";
+
+	/* CAN controller on the baseboard */
+	canfd: can@0 {
+		compatible = "microchip,mcp2518fd";
+		clocks = <&clk_xtal20>;
+		interrupt-parent = <&gpio1>;
+		interrupts = <8 IRQ_TYPE_EDGE_FALLING>;
+		reg = <0>;
+		spi-max-frequency = <2000000>;
+	};
+
+};
+
+&ecspi2 {
+	pinctrl-0 = <&pinctrl_ecspi2 &pinctrl_gpio1>;
+	cs-gpios = <&gpio5 13 GPIO_ACTIVE_LOW>, <&gpio3 4 GPIO_ACTIVE_LOW>;
+	status = "disabled";
+};
+
+&ethphy0 {
+	max-speed = <100>;
+};
+
+&fec1 {
+	status = "okay";
+};
+
+&flexspi {
+	status = "okay";
+
+	flash@0 {
+		reg = <0>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "jedec,spi-nor";
+		spi-max-frequency = <66000000>;
+		spi-rx-bus-width = <4>;
+		spi-tx-bus-width = <4>;
+	};
+};
+
+&gpio1 {
+	gpio-line-names =
+		"", "", "", "",
+		"", "", "", "",
+		"", "", "", "",
+		"", "", "", "",
+		"", "", "", "",
+		"", "", "", "",
+		"", "", "", "",
+		"", "", "", "";
+};
+
+&gpio2 {
+	gpio-line-names =
+		"", "", "", "",
+		"", "", "", "",
+		"", "", "", "",
+		"", "", "", "",
+		"", "", "", "",
+		"", "", "", "",
+		"", "", "", "",
+		"", "", "", "";
+};
+
+&gpio3 {
+	gpio-line-names =
+		"", "", "", "",
+		"", "", "", "",
+		"", "", "", "",
+		"", "", "", "",
+		"", "", "", "",
+		"", "", "DISP_reset", "KBD_intI",
+		"", "", "", "",
+		"", "", "", "";
+};
+
+&gpio4 {
+	/*
+	 * CPLD_D[n] is ARM_CPLD[n] in schematic
+	 * CPLD_int is SA_INTERRUPT in schematic
+	 * CPLD_reset is RESET_SOFT in schematic
+	 */
+	gpio-line-names =
+		"CPLD_D[1]", "CPLD_int", "CPLD_reset", "",
+		"", "CPLD_D[0]", "", "",
+		"", "", "", "CPLD_D[2]",
+		"CPLD_D[3]", "CPLD_D[4]", "CPLD_D[5]", "CPLD_D[6]",
+		"CPLD_D[7]", "", "", "",
+		"", "", "", "",
+		"", "", "", "KBD_intK",
+		"", "", "", "";
+};
+
+&gpio5 {
+	gpio-line-names =
+		"", "", "", "",
+		"", "", "", "",
+		"", "", "", "",
+		"", "", "", "",
+		"", "", "", "",
+		"", "", "", "",
+		"", "", "", "",
+		"", "", "", "";
+};
+
+&gpio_expander_21 {
+	status = "okay";
+};
+
+&hwmon {
+	status = "okay";
+};
+
+&i2c3 {
+	status = "okay";
+};
+
+&i2c4 {
+	/* None of this is present on the SoM. */
+	/delete-node/ bridge@2c;
+	/delete-node/ hdmi@48;
+	/delete-node/ touch@4a;
+	/delete-node/ sensor@4f;
+	/delete-node/ eeprom@50;
+	/delete-node/ eeprom@57;
+};
+
+&iomuxc {
+	pinctrl-0 = <&pinctrl_gpio7>, <&pinctrl_gpio_hog1>,
+		    <&pinctrl_gpio_hog2>, <&pinctrl_gpio_hog3>;
+
+	pinctrl_beeper: beepergrp {
+		fsl,pins = <
+			MX8MM_IOMUXC_SPDIF_TX_GPIO5_IO3			0x1c4
+		>;
+	};
+
+	pinctrl_ecspi1: ecspi1grp {
+		fsl,pins = <
+			MX8MM_IOMUXC_ECSPI1_SCLK_ECSPI1_SCLK		0x4
+			MX8MM_IOMUXC_ECSPI1_MOSI_ECSPI1_MOSI		0x4
+			MX8MM_IOMUXC_ECSPI1_MISO_ECSPI1_MISO		0x1c4
+			MX8MM_IOMUXC_ECSPI1_SS0_GPIO5_IO9		0x1c4
+		>;
+	};
+
+	pinctrl_led: ledgrp {
+		fsl,pins = <
+			MX8MM_IOMUXC_SAI1_TXD6_GPIO4_IO18		0x1c4
+			MX8MM_IOMUXC_SAI1_TXFS_GPIO4_IO10		0x1c4
+		>;
+	};
+
+	pinctrl_uart4_rts: uart4rtsgrp {
+		fsl,pins = <
+			/* SODIMM 222 */
+			MX8MM_IOMUXC_GPIO1_IO09_GPIO1_IO9		0x184
+		>;
+	};
+};
+
+&pinctrl_gpio1 {
+	fsl,pins = <
+		/* SODIMM 206 */
+		MX8MM_IOMUXC_NAND_CE3_B_GPIO3_IO4			0x1c4
+	>;
+};
+
+&pinctrl_gpio_hog1 {
+	fsl,pins = <
+		/* SODIMM 88 */
+		MX8MM_IOMUXC_SAI1_MCLK_GPIO4_IO20			0x1c4
+		/* CPLD_int */
+		MX8MM_IOMUXC_SAI1_RXC_GPIO4_IO1				0x1c4
+		/* CPLD_reset */
+		MX8MM_IOMUXC_SAI1_RXD0_GPIO4_IO2			0x1c4
+		/* SODIMM 94 */
+		MX8MM_IOMUXC_SAI1_RXD1_GPIO4_IO3			0x1c4
+		/* SODIMM 96 */
+		MX8MM_IOMUXC_SAI1_RXD2_GPIO4_IO4			0x1c4
+		/* CPLD_D[7] */
+		MX8MM_IOMUXC_SAI1_RXD3_GPIO4_IO5			0x1c4
+		/* CPLD_D[6] */
+		MX8MM_IOMUXC_SAI1_RXFS_GPIO4_IO0			0x1c4
+		/* CPLD_D[5] */
+		MX8MM_IOMUXC_SAI1_TXC_GPIO4_IO11			0x1c4
+		/* CPLD_D[4] */
+		MX8MM_IOMUXC_SAI1_TXD0_GPIO4_IO12			0x1c4
+		/* CPLD_D[3] */
+		MX8MM_IOMUXC_SAI1_TXD1_GPIO4_IO13			0x1c4
+		/* CPLD_D[2] */
+		MX8MM_IOMUXC_SAI1_TXD2_GPIO4_IO14			0x1c4
+		/* CPLD_D[1] */
+		MX8MM_IOMUXC_SAI1_TXD3_GPIO4_IO15			0x1c4
+		/* CPLD_D[0] */
+		MX8MM_IOMUXC_SAI1_TXD4_GPIO4_IO16			0x1c4
+		/* KBD_intK */
+		MX8MM_IOMUXC_SAI2_MCLK_GPIO4_IO27			0x1c4
+		/* DISP_reset */
+		MX8MM_IOMUXC_SAI5_RXD1_GPIO3_IO22			0x1c4
+		/* KBD_intI */
+		MX8MM_IOMUXC_SAI5_RXD2_GPIO3_IO23			0x1c4
+		/* SODIMM 46 */
+		MX8MM_IOMUXC_SAI5_RXD3_GPIO3_IO24			0x1c4
+	>;
+};
+
+&pinctrl_uart1 {
+	fsl,pins = <
+		/* SODIMM 149 */
+		MX8MM_IOMUXC_SAI2_RXFS_UART1_DCE_TX			0x1c4
+		/* SODIMM 147 */
+		MX8MM_IOMUXC_SAI2_RXC_UART1_DCE_RX			0x1c4
+		/* SODIMM 210 */
+		MX8MM_IOMUXC_UART3_RXD_UART1_DTE_RTS_B			0x1c4
+		/* SODIMM 212 */
+		MX8MM_IOMUXC_UART3_TXD_UART1_DTE_CTS_B			0x1c4
+	>;
+};
+
+&reg_usb_otg1_vbus {
+	/delete-property/ enable-active-high;
+	gpio = <&gpio1 12 GPIO_ACTIVE_LOW>;
+};
+
+&reg_usb_otg2_vbus {
+	/delete-property/ enable-active-high;
+	gpio = <&gpio1 14 GPIO_ACTIVE_LOW>;
+};
+
+&sai2 {
+	status = "disabled";
+};
+
+&uart1 {
+	uart-has-rtscts;
+	status = "okay";
+};
+
+&uart2 {
+	status = "okay";
+};
+
+&uart4 {
+	pinctrl-0 = <&pinctrl_uart4 &pinctrl_uart4_rts>;
+	linux,rs485-enabled-at-boot-time;
+	rts-gpios = <&gpio1 9 GPIO_ACTIVE_HIGH>;
+	status = "okay";
+};
+
+&usbotg1 {
+	dr_mode = "peripheral";
+	status = "okay";
+};
+
+&usbotg2 {
+	dr_mode = "host";
+	status = "okay";
+};
+
+&usdhc2 {
+	status = "okay";
+};