[PATCH v2 1/3] dt-bindings: arm: fsl: Add binding for Variscite Symphony board with VAR-SOM-MX8MN

[PATCH v2 1/3] dt-bindings: arm: fsl: Add binding for Variscite Symphony board with VAR-SOM-MX8MN

[Krzysztof Kozlowski]

Add a binding for the Variscite Symphony evaluation kit board with
VAR-SOM-MX8MN System on Module.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
---
 Documentation/devicetree/bindings/arm/fsl.yaml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/fsl.yaml b/Documentation/devicetree/bindings/arm/fsl.yaml
index 37cef8653541..8a8284715baf 100644
--- a/Documentation/devicetree/bindings/arm/fsl.yaml
+++ b/Documentation/devicetree/bindings/arm/fsl.yaml
@@ -363,6 +363,12 @@ properties:
               - fsl,imx8mn-evk            # i.MX8MN LPDDR4 EVK Board
           - const: fsl,imx8mn
 
+      - description: Variscite VAR-SOM-MX8MN based boards
+        items:
+          - const: variscite,var-som-mx8mn-symphony
+          - const: variscite,var-som-mx8mn
+          - const: fsl,imx8mn
+
       - description: i.MX8MP based Boards
         items:
           - enum:
-- 
2.17.1

[PATCH v2 2/3] arm64: dts: imx8mn-var-som: Add Variscite VAR-SOM-MX8MN System on Module

[Krzysztof Kozlowski]

Add DTSI of Variscite VAR-SOM-MX8MN (Nano) System on Module in a basic
version, delivered with Variscite Symphony Evaluation kit.  This version
comes with:
- 1 GB of RAM,
- 16 GB eMMC,
- Gigabit Ethernet PHY,
- 802.11 ac/a/b/g/n WiFi with 4.2 Bluetooth,
- CAN bus,
- Audio codec (not yet configured in DTSI).

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

---

Changes since v1:
1. Add Variscite copyright. The work was based on my previous
   imx8mm-var-som work which was based on imx8mm-evk, however few device
   nodes were configured based on Variscite GPLv2 work.
2. Set PMIC interrupt as edge rising which is not strictly correct, but
   it seems to not cause IRQ storm and matches previous GPIO_ACTIVE_LOW
   incorrect flag. I reached to Variscite but did not get proper answer
   except "there should be a pull up", which does not work in reality.
   Something is wrong here...
---
 .../boot/dts/freescale/imx8mn-var-som.dtsi    | 551 ++++++++++++++++++
 1 file changed, 551 insertions(+)
 create mode 100644 arch/arm64/boot/dts/freescale/imx8mn-var-som.dtsi

diff --git a/arch/arm64/boot/dts/freescale/imx8mn-var-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mn-var-som.dtsi
new file mode 100644
index 000000000000..a2d0190921e4
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mn-var-som.dtsi
@@ -0,0 +1,551 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright 2019 NXP
+ * Copyright 2019-2020 Variscite Ltd.
+ * Copyright (C) 2020 Krzysztof Kozlowski <krzk@kernel.org>
+ */
+
+#include "imx8mn.dtsi"
+
+/ {
+	model = "Variscite VAR-SOM-MX8MN module";
+	compatible = "variscite,var-som-mx8mn", "fsl,imx8mn";
+
+	chosen {
+		stdout-path = &uart4;
+	};
+
+	memory@40000000 {
+		device_type = "memory";
+		reg = <0x0 0x40000000 0 0x40000000>;
+	};
+
+	reg_eth_phy: regulator-eth-phy {
+		compatible = "regulator-fixed";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_reg_eth_phy>;
+		regulator-name = "eth_phy_pwr";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		gpio = <&gpio2 9 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+};
+
+&A53_0 {
+	cpu-supply = <&buck2_reg>;
+};
+
+&A53_1 {
+	cpu-supply = <&buck2_reg>;
+};
+
+&A53_2 {
+	cpu-supply = <&buck2_reg>;
+};
+
+&A53_3 {
+	cpu-supply = <&buck2_reg>;
+};
+
+&ecspi1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_ecspi1>;
+	cs-gpios = <&gpio1 14 GPIO_ACTIVE_LOW>,
+		   <&gpio1  0 GPIO_ACTIVE_LOW>;
+	/delete-property/ dmas;
+	/delete-property/ dma-names;
+	status = "okay";
+
+	/* Resistive touch controller */
+	touchscreen@0 {
+		reg = <0>;
+		compatible = "ti,ads7846";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_restouch>;
+		interrupt-parent = <&gpio1>;
+		interrupts = <3 IRQ_TYPE_EDGE_FALLING>;
+
+		spi-max-frequency = <1500000>;
+		pendown-gpio = <&gpio1 3 GPIO_ACTIVE_LOW>;
+
+		ti,x-min = /bits/ 16 <125>;
+		touchscreen-size-x = /bits/ 16 <4008>;
+		ti,y-min = /bits/ 16 <282>;
+		touchscreen-size-y = /bits/ 16 <3864>;
+		ti,x-plate-ohms = /bits/ 16 <180>;
+		touchscreen-max-pressure = /bits/ 16 <255>;
+		touchscreen-average-samples = /bits/ 16 <10>;
+		ti,debounce-tol = /bits/ 16 <3>;
+		ti,debounce-rep = /bits/ 16 <1>;
+		ti,settle-delay-usec = /bits/ 16 <150>;
+		ti,keep-vref-on;
+		wakeup-source;
+	};
+};
+
+&fec1 {
+	pinctrl-names = "default", "sleep";
+	pinctrl-0 = <&pinctrl_fec1>;
+	pinctrl-1 = <&pinctrl_fec1_sleep>;
+	phy-mode = "rgmii";
+	phy-handle = <&ethphy>;
+	phy-supply = <&reg_eth_phy>;
+	fsl,magic-packet;
+	status = "okay";
+
+	mdio {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		ethphy: ethernet-phy@4 {
+			compatible = "ethernet-phy-ieee802.3-c22";
+			reg = <4>;
+			reset-gpios = <&gpio1 9 GPIO_ACTIVE_LOW>;
+			reset-assert-us = <10000>;
+		};
+	};
+};
+
+&i2c1 {
+	clock-frequency = <400000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c1>;
+	status = "okay";
+
+	pmic@4b {
+		compatible = "rohm,bd71847";
+		reg = <0x4b>;
+		pinctrl-0 = <&pinctrl_pmic>;
+		interrupt-parent = <&gpio2>;
+		/*
+		 * The interrupt is not correct. It should be level low,
+		 * however with internal pull up this causes IRQ storm.
+		 */
+		interrupts = <8 IRQ_TYPE_EDGE_RISING>;
+		rohm,reset-snvs-powered;
+
+		regulators {
+			buck1_reg: BUCK1 {
+				regulator-name = "buck1";
+				regulator-min-microvolt = <700000>;
+				regulator-max-microvolt = <1300000>;
+				regulator-boot-on;
+				regulator-always-on;
+				regulator-ramp-delay = <1250>;
+			};
+
+			buck2_reg: BUCK2 {
+				regulator-name = "buck2";
+				regulator-min-microvolt = <700000>;
+				regulator-max-microvolt = <1300000>;
+				regulator-boot-on;
+				regulator-always-on;
+				regulator-ramp-delay = <1250>;
+				rohm,dvs-run-voltage = <1000000>;
+				rohm,dvs-idle-voltage = <900000>;
+			};
+
+			buck3_reg: BUCK3 {
+				regulator-name = "buck3";
+				regulator-min-microvolt = <700000>;
+				regulator-max-microvolt = <1350000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			buck4_reg: BUCK4 {
+				regulator-name = "buck4";
+				regulator-min-microvolt = <2600000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			buck5_reg: BUCK5 {
+				regulator-name = "buck5";
+				regulator-min-microvolt = <1605000>;
+				regulator-max-microvolt = <1995000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			buck6_reg: BUCK6 {
+				regulator-name = "buck6";
+				regulator-min-microvolt = <800000>;
+				regulator-max-microvolt = <1400000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			ldo1_reg: LDO1 {
+				regulator-name = "ldo1";
+				regulator-min-microvolt = <1600000>;
+				regulator-max-microvolt = <1900000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			ldo2_reg: LDO2 {
+				regulator-name = "ldo2";
+				regulator-min-microvolt = <800000>;
+				regulator-max-microvolt = <900000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			ldo3_reg: LDO3 {
+				regulator-name = "ldo3";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			ldo4_reg: LDO4 {
+				regulator-name = "ldo4";
+				regulator-min-microvolt = <900000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-always-on;
+			};
+
+			ldo5_reg: LDO5 {
+				regulator-compatible = "ldo5";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-always-on;
+			};
+
+			ldo6_reg: LDO6 {
+				regulator-name = "ldo6";
+				regulator-min-microvolt = <900000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+		};
+	};
+};
+
+&i2c3 {
+	clock-frequency = <400000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c3>;
+	status = "okay";
+
+	/* TODO: configure audio, as of now just put a placeholder */
+	wm8904: codec@1a {
+		compatible = "wlf,wm8904";
+		reg = <0x1a>;
+		status = "disabled";
+	};
+};
+
+&snvs_pwrkey {
+	status = "okay";
+};
+
+/* Bluetooth */
+&uart2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart2>;
+	assigned-clocks = <&clk IMX8MN_CLK_UART2>;
+	assigned-clock-parents = <&clk IMX8MN_SYS_PLL1_80M>;
+	uart-has-rtscts;
+	status = "okay";
+};
+
+/* Console */
+&uart4 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart4>;
+	status = "okay";
+};
+
+&usbotg1 {
+	dr_mode = "otg";
+	usb-role-switch;
+	status = "okay";
+};
+
+/* WIFI */
+&usdhc1 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	pinctrl-names = "default", "state_100mhz", "state_200mhz";
+	pinctrl-0 = <&pinctrl_usdhc1>;
+	pinctrl-1 = <&pinctrl_usdhc1_100mhz>;
+	pinctrl-2 = <&pinctrl_usdhc1_200mhz>;
+	bus-width = <4>;
+	non-removable;
+	keep-power-in-suspend;
+	status = "okay";
+
+	brcmf: bcrmf@1 {
+		reg = <1>;
+		compatible = "brcm,bcm4329-fmac";
+	};
+};
+
+/* SD */
+&usdhc2 {
+	assigned-clocks = <&clk IMX8MN_CLK_USDHC2>;
+	assigned-clock-rates = <200000000>;
+	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>;
+	cd-gpios = <&gpio1 10 GPIO_ACTIVE_LOW>;
+	bus-width = <4>;
+	vmmc-supply = <&reg_usdhc2_vmmc>;
+	status = "okay";
+};
+
+/* eMMC */
+&usdhc3 {
+	assigned-clocks = <&clk IMX8MN_CLK_USDHC3_ROOT>;
+	assigned-clock-rates = <400000000>;
+	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;
+	status = "okay";
+};
+
+&wdog1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_wdog>;
+	fsl,ext-reset-output;
+	status = "okay";
+};
+
+&iomuxc {
+	pinctrl_ecspi1: ecspi1grp {
+		fsl,pins = <
+			MX8MN_IOMUXC_ECSPI1_SCLK_ECSPI1_SCLK		0x13
+			MX8MN_IOMUXC_ECSPI1_MOSI_ECSPI1_MOSI		0x13
+			MX8MN_IOMUXC_ECSPI1_MISO_ECSPI1_MISO		0x13
+			MX8MN_IOMUXC_GPIO1_IO14_GPIO1_IO14		0x13
+			MX8MN_IOMUXC_GPIO1_IO00_GPIO1_IO0		0x13
+		>;
+	};
+
+	pinctrl_fec1: fec1grp {
+		fsl,pins = <
+			MX8MN_IOMUXC_ENET_MDC_ENET1_MDC			0x3
+			MX8MN_IOMUXC_ENET_MDIO_ENET1_MDIO		0x3
+			MX8MN_IOMUXC_ENET_TD3_ENET1_RGMII_TD3		0x1f
+			MX8MN_IOMUXC_ENET_TD2_ENET1_RGMII_TD2		0x1f
+			MX8MN_IOMUXC_ENET_TD1_ENET1_RGMII_TD1		0x1f
+			MX8MN_IOMUXC_ENET_TD0_ENET1_RGMII_TD0		0x1f
+			MX8MN_IOMUXC_ENET_RD3_ENET1_RGMII_RD3		0x91
+			MX8MN_IOMUXC_ENET_RD2_ENET1_RGMII_RD2		0x91
+			MX8MN_IOMUXC_ENET_RD1_ENET1_RGMII_RD1		0x91
+			MX8MN_IOMUXC_ENET_RD0_ENET1_RGMII_RD0		0x91
+			MX8MN_IOMUXC_ENET_TXC_ENET1_RGMII_TXC		0x1f
+			MX8MN_IOMUXC_ENET_RXC_ENET1_RGMII_RXC		0x91
+			MX8MN_IOMUXC_ENET_RX_CTL_ENET1_RGMII_RX_CTL	0x91
+			MX8MN_IOMUXC_ENET_TX_CTL_ENET1_RGMII_TX_CTL	0x1f
+			MX8MN_IOMUXC_GPIO1_IO09_GPIO1_IO9		0x19
+		>;
+	};
+
+	pinctrl_fec1_sleep: fec1sleepgrp {
+		fsl,pins = <
+			MX8MN_IOMUXC_ENET_MDC_GPIO1_IO16		0x120
+			MX8MN_IOMUXC_ENET_MDIO_GPIO1_IO17		0x120
+			MX8MN_IOMUXC_ENET_TD3_GPIO1_IO18		0x120
+			MX8MN_IOMUXC_ENET_TD2_GPIO1_IO19		0x120
+			MX8MN_IOMUXC_ENET_TD1_GPIO1_IO20		0x120
+			MX8MN_IOMUXC_ENET_TD0_GPIO1_IO21		0x120
+			MX8MN_IOMUXC_ENET_RD3_GPIO1_IO29		0x120
+			MX8MN_IOMUXC_ENET_RD2_GPIO1_IO28		0x120
+			MX8MN_IOMUXC_ENET_RD1_GPIO1_IO27		0x120
+			MX8MN_IOMUXC_ENET_RD0_GPIO1_IO26		0x120
+			MX8MN_IOMUXC_ENET_TXC_GPIO1_IO23		0x120
+			MX8MN_IOMUXC_ENET_RXC_GPIO1_IO25		0x120
+			MX8MN_IOMUXC_ENET_RX_CTL_GPIO1_IO24		0x120
+			MX8MN_IOMUXC_ENET_TX_CTL_GPIO1_IO22		0x120
+			MX8MN_IOMUXC_GPIO1_IO09_GPIO1_IO9		0x120
+		>;
+	};
+
+	pinctrl_i2c1: i2c1grp {
+		fsl,pins = <
+			MX8MN_IOMUXC_I2C1_SCL_I2C1_SCL		0x400001c3
+			MX8MN_IOMUXC_I2C1_SDA_I2C1_SDA		0x400001c3
+		>;
+	};
+
+	pinctrl_i2c3: i2c3grp {
+		fsl,pins = <
+			MX8MN_IOMUXC_I2C3_SCL_I2C3_SCL		0x400001c3
+			MX8MN_IOMUXC_I2C3_SDA_I2C3_SDA		0x400001c3
+		>;
+	};
+
+	pinctrl_pmic: pmicirqgrp {
+		fsl,pins = <
+			MX8MN_IOMUXC_SD1_DATA6_GPIO2_IO8	0x101
+		>;
+	};
+
+	pinctrl_reg_eth_phy: regethphygrp {
+		fsl,pins = <
+			MX8MN_IOMUXC_SD1_DATA7_GPIO2_IO9	0x41
+		>;
+	};
+
+	pinctrl_restouch: restouchgrp {
+		fsl,pins = <
+			MX8MN_IOMUXC_GPIO1_IO03_GPIO1_IO3	0x1c0
+		>;
+	};
+
+	pinctrl_uart2: uart2grp {
+		fsl,pins = <
+			MX8MN_IOMUXC_SAI3_TXFS_UART2_DCE_RX	0x140
+			MX8MN_IOMUXC_SAI3_TXC_UART2_DCE_TX	0x140
+			MX8MN_IOMUXC_SAI3_RXC_UART2_DCE_CTS_B	0x140
+			MX8MN_IOMUXC_SAI3_RXD_UART2_DCE_RTS_B	0x140
+		>;
+	};
+
+	pinctrl_uart4: uart4grp {
+		fsl,pins = <
+			MX8MN_IOMUXC_UART4_RXD_UART4_DCE_RX	0x140
+			MX8MN_IOMUXC_UART4_TXD_UART4_DCE_TX	0x140
+		>;
+	};
+
+	pinctrl_usdhc1: usdhc1grp {
+		fsl,pins = <
+			MX8MN_IOMUXC_SD1_CLK_USDHC1_CLK		0x190
+			MX8MN_IOMUXC_SD1_CMD_USDHC1_CMD		0x1d0
+			MX8MN_IOMUXC_SD1_DATA0_USDHC1_DATA0	0x1d0
+			MX8MN_IOMUXC_SD1_DATA1_USDHC1_DATA1	0x1d0
+			MX8MN_IOMUXC_SD1_DATA2_USDHC1_DATA2	0x1d0
+			MX8MN_IOMUXC_SD1_DATA3_USDHC1_DATA3	0x1d0
+		>;
+	};
+
+	pinctrl_usdhc1_100mhz: usdhc1-100mhzgrp {
+		fsl,pins = <
+			MX8MN_IOMUXC_SD1_CLK_USDHC1_CLK		0x194
+			MX8MN_IOMUXC_SD1_CMD_USDHC1_CMD		0x1d4
+			MX8MN_IOMUXC_SD1_DATA0_USDHC1_DATA0	0x1d4
+			MX8MN_IOMUXC_SD1_DATA1_USDHC1_DATA1	0x1d4
+			MX8MN_IOMUXC_SD1_DATA2_USDHC1_DATA2	0x1d4
+			MX8MN_IOMUXC_SD1_DATA3_USDHC1_DATA3	0x1d4
+		>;
+	};
+
+	pinctrl_usdhc1_200mhz: usdhc1-200mhzgrp {
+		fsl,pins = <
+			MX8MN_IOMUXC_SD1_CLK_USDHC1_CLK		0x196
+			MX8MN_IOMUXC_SD1_CMD_USDHC1_CMD		0x1d6
+			MX8MN_IOMUXC_SD1_DATA0_USDHC1_DATA0	0x1d6
+			MX8MN_IOMUXC_SD1_DATA1_USDHC1_DATA1	0x1d6
+			MX8MN_IOMUXC_SD1_DATA2_USDHC1_DATA2	0x1d6
+			MX8MN_IOMUXC_SD1_DATA3_USDHC1_DATA3	0x1d6
+		>;
+	};
+
+	pinctrl_usdhc2_gpio: usdhc2gpiogrp {
+		fsl,pins = <
+			MX8MN_IOMUXC_GPIO1_IO10_GPIO1_IO10	0x41
+		>;
+	};
+
+	pinctrl_usdhc2: usdhc2grp {
+		fsl,pins = <
+			MX8MN_IOMUXC_SD2_CLK_USDHC2_CLK		0x190
+			MX8MN_IOMUXC_SD2_CMD_USDHC2_CMD		0x1d0
+			MX8MN_IOMUXC_SD2_DATA0_USDHC2_DATA0	0x1d0
+			MX8MN_IOMUXC_SD2_DATA1_USDHC2_DATA1	0x1d0
+			MX8MN_IOMUXC_SD2_DATA2_USDHC2_DATA2	0x1d0
+			MX8MN_IOMUXC_SD2_DATA3_USDHC2_DATA3	0x1d0
+			MX8MN_IOMUXC_GPIO1_IO04_USDHC2_VSELECT	0x1d0
+		>;
+	};
+
+	pinctrl_usdhc2_100mhz: usdhc2-100mhzgrp {
+		fsl,pins = <
+			MX8MN_IOMUXC_SD2_CLK_USDHC2_CLK		0x194
+			MX8MN_IOMUXC_SD2_CMD_USDHC2_CMD		0x1d4
+			MX8MN_IOMUXC_SD2_DATA0_USDHC2_DATA0	0x1d4
+			MX8MN_IOMUXC_SD2_DATA1_USDHC2_DATA1	0x1d4
+			MX8MN_IOMUXC_SD2_DATA2_USDHC2_DATA2	0x1d4
+			MX8MN_IOMUXC_SD2_DATA3_USDHC2_DATA3	0x1d4
+			MX8MN_IOMUXC_GPIO1_IO04_USDHC2_VSELECT	0x1d0
+		>;
+	};
+
+	pinctrl_usdhc2_200mhz: usdhc2-200mhzgrp {
+		fsl,pins = <
+			MX8MN_IOMUXC_SD2_CLK_USDHC2_CLK		0x196
+			MX8MN_IOMUXC_SD2_CMD_USDHC2_CMD		0x1d6
+			MX8MN_IOMUXC_SD2_DATA0_USDHC2_DATA0	0x1d6
+			MX8MN_IOMUXC_SD2_DATA1_USDHC2_DATA1	0x1d6
+			MX8MN_IOMUXC_SD2_DATA2_USDHC2_DATA2	0x1d6
+			MX8MN_IOMUXC_SD2_DATA3_USDHC2_DATA3	0x1d6
+			MX8MN_IOMUXC_GPIO1_IO04_USDHC2_VSELECT	0x1d0
+		>;
+	};
+
+	pinctrl_usdhc3: usdhc3grp {
+		fsl,pins = <
+			MX8MN_IOMUXC_NAND_WE_B_USDHC3_CLK	0x190
+			MX8MN_IOMUXC_NAND_WP_B_USDHC3_CMD	0x1d0
+			MX8MN_IOMUXC_NAND_DATA04_USDHC3_DATA0	0x1d0
+			MX8MN_IOMUXC_NAND_DATA05_USDHC3_DATA1	0x1d0
+			MX8MN_IOMUXC_NAND_DATA06_USDHC3_DATA2	0x1d0
+			MX8MN_IOMUXC_NAND_DATA07_USDHC3_DATA3	0x1d0
+			MX8MN_IOMUXC_NAND_RE_B_USDHC3_DATA4	0x1d0
+			MX8MN_IOMUXC_NAND_CE2_B_USDHC3_DATA5	0x1d0
+			MX8MN_IOMUXC_NAND_CE3_B_USDHC3_DATA6	0x1d0
+			MX8MN_IOMUXC_NAND_CLE_USDHC3_DATA7	0x1d0
+			MX8MN_IOMUXC_NAND_CE1_B_USDHC3_STROBE	0x190
+		>;
+	};
+
+	pinctrl_usdhc3_100mhz: usdhc3-100mhzgrp {
+		fsl,pins = <
+			MX8MN_IOMUXC_NAND_WE_B_USDHC3_CLK	0x194
+			MX8MN_IOMUXC_NAND_WP_B_USDHC3_CMD	0x1d4
+			MX8MN_IOMUXC_NAND_DATA04_USDHC3_DATA0	0x1d4
+			MX8MN_IOMUXC_NAND_DATA05_USDHC3_DATA1	0x1d4
+			MX8MN_IOMUXC_NAND_DATA06_USDHC3_DATA2	0x1d4
+			MX8MN_IOMUXC_NAND_DATA07_USDHC3_DATA3	0x1d4
+			MX8MN_IOMUXC_NAND_RE_B_USDHC3_DATA4	0x1d4
+			MX8MN_IOMUXC_NAND_CE2_B_USDHC3_DATA5	0x1d4
+			MX8MN_IOMUXC_NAND_CE3_B_USDHC3_DATA6	0x1d4
+			MX8MN_IOMUXC_NAND_CLE_USDHC3_DATA7	0x1d4
+			MX8MN_IOMUXC_NAND_CE1_B_USDHC3_STROBE	0x194
+		>;
+	};
+
+	pinctrl_usdhc3_200mhz: usdhc3-200mhzgrp {
+		fsl,pins = <
+			MX8MN_IOMUXC_NAND_WE_B_USDHC3_CLK	0x196
+			MX8MN_IOMUXC_NAND_WP_B_USDHC3_CMD	0x1d6
+			MX8MN_IOMUXC_NAND_DATA04_USDHC3_DATA0	0x1d6
+			MX8MN_IOMUXC_NAND_DATA05_USDHC3_DATA1	0x1d6
+			MX8MN_IOMUXC_NAND_DATA06_USDHC3_DATA2	0x1d6
+			MX8MN_IOMUXC_NAND_DATA07_USDHC3_DATA3	0x1d6
+			MX8MN_IOMUXC_NAND_RE_B_USDHC3_DATA4	0x1d6
+			MX8MN_IOMUXC_NAND_CE2_B_USDHC3_DATA5	0x1d6
+			MX8MN_IOMUXC_NAND_CE3_B_USDHC3_DATA6	0x1d6
+			MX8MN_IOMUXC_NAND_CLE_USDHC3_DATA7	0x1d6
+			MX8MN_IOMUXC_NAND_CE1_B_USDHC3_STROBE	0x196
+		>;
+	};
+
+	pinctrl_wdog: wdoggrp {
+		fsl,pins = <
+			MX8MN_IOMUXC_GPIO1_IO02_WDOG1_WDOG_B	0xc6
+		>;
+	};
+};
-- 
2.17.1

[PATCH v2 3/3] arm64: dts: imx8mn-var-som-symphony: Add Variscite Symphony board with VAR-SOM-MX8MN

[Krzysztof Kozlowski]

Add a basic DTS for Variscite Symphony evaluation kit with VAR-SOM-MX8MN
(i.MX 8M Nano) System on Module.  This brings up the board with basic
functionalities although still few issues remain (e.g. I2C3 and USB OTG
port, although it might not be the problem of DTS).

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

---

Changes since v1:
1. Add Variscite copyright. The work was based on my previous
   imx8mm-var-som work which was based on imx8mm-evk, however few device
   nodes were configured based on Variscite GPLv2 work.
2. Drop wakeup-source from RTC.
---
 arch/arm64/boot/dts/freescale/Makefile        |   1 +
 .../dts/freescale/imx8mn-var-som-symphony.dts | 240 ++++++++++++++++++
 2 files changed, 241 insertions(+)
 create mode 100644 arch/arm64/boot/dts/freescale/imx8mn-var-som-symphony.dts

diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index 6b3494b6aa99..28904ebd92cf 100644
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile
@@ -33,6 +33,7 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mm-evk.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mm-var-som-symphony.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mn-evk.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mn-ddr4-evk.dtb
+dtb-$(CONFIG_ARCH_MXC) += imx8mn-var-som-symphony.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-evk.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mq-evk.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mq-hummingboard-pulse.dtb
diff --git a/arch/arm64/boot/dts/freescale/imx8mn-var-som-symphony.dts b/arch/arm64/boot/dts/freescale/imx8mn-var-som-symphony.dts
new file mode 100644
index 000000000000..f61c48776cf3
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mn-var-som-symphony.dts
@@ -0,0 +1,240 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright 2019-2020 Variscite Ltd.
+ * Copyright (C) 2020 Krzysztof Kozlowski <krzk@kernel.org>
+ */
+
+/dts-v1/;
+
+#include "imx8mn-var-som.dtsi"
+
+/ {
+	model = "Variscite VAR-SOM-MX8MN Symphony evaluation board";
+	compatible = "variscite,var-som-mx8mn-symphony", "variscite,var-som-mx8mn", "fsl,imx8mn";
+
+	reg_usdhc2_vmmc: regulator-usdhc2-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 = <&gpio4 22 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+
+		back {
+			label = "Back";
+			gpios = <&pca9534 1 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_BACK>;
+		};
+
+		home {
+			label = "Home";
+			gpios = <&pca9534 2 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_HOME>;
+		};
+
+		menu {
+			label = "Menu";
+			gpios = <&pca9534 3 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_MENU>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led {
+			label = "Heartbeat";
+			gpios = <&pca9534 0 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "heartbeat";
+		};
+	};
+};
+
+&ethphy {
+	reset-gpios = <&pca9534 5 GPIO_ACTIVE_HIGH>;
+};
+
+&i2c2 {
+	clock-frequency = <400000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c2>;
+	status = "okay";
+
+	pca9534: gpio@20 {
+		compatible = "nxp,pca9534";
+		reg = <0x20>;
+		gpio-controller;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_pca9534>;
+		interrupt-parent = <&gpio1>;
+		interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
+		#gpio-cells = <2>;
+		wakeup-source;
+
+		/* USB 3.0 OTG (usbotg1) / SATA port switch, set to USB 3.0 */
+		usb3-sata-sel-hog {
+			gpio-hog;
+			gpios = <4 GPIO_ACTIVE_HIGH>;
+			output-low;
+			line-name = "usb3_sata_sel";
+		};
+
+		som-vselect-hog {
+			gpio-hog;
+			gpios = <6 GPIO_ACTIVE_HIGH>;
+			output-low;
+			line-name = "som_vselect";
+		};
+
+		enet-sel-hog {
+			gpio-hog;
+			gpios = <7 GPIO_ACTIVE_HIGH>;
+			output-low;
+			line-name = "enet_sel";
+		};
+	};
+
+	extcon_usbotg1: typec@3d {
+		compatible = "nxp,ptn5150";
+		reg = <0x3d>;
+		interrupt-parent = <&gpio1>;
+		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_ptn5150>;
+		status = "okay";
+	};
+};
+
+&i2c3 {
+	/* Capacitive touch controller */
+	ft5x06_ts: touchscreen@38 {
+		compatible = "edt,edt-ft5406";
+		reg = <0x38>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_captouch>;
+		interrupt-parent = <&gpio5>;
+		interrupts = <4 IRQ_TYPE_LEVEL_HIGH>;
+
+		touchscreen-size-x = <800>;
+		touchscreen-size-y = <480>;
+		touchscreen-inverted-x;
+		touchscreen-inverted-y;
+	};
+
+	rtc@68 {
+		compatible = "dallas,ds1337";
+		reg = <0x68>;
+	};
+};
+
+/* Header */
+&uart1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart1>;
+	status = "okay";
+};
+
+/* Header */
+&uart3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart3>;
+	status = "okay";
+};
+
+&usbotg1 {
+	disable-over-current;
+	extcon = <&extcon_usbotg1>, <&extcon_usbotg1>;
+};
+
+&pinctrl_fec1 {
+	fsl,pins = <
+		MX8MN_IOMUXC_ENET_MDC_ENET1_MDC			0x3
+		MX8MN_IOMUXC_ENET_MDIO_ENET1_MDIO		0x3
+		MX8MN_IOMUXC_ENET_TD3_ENET1_RGMII_TD3		0x1f
+		MX8MN_IOMUXC_ENET_TD2_ENET1_RGMII_TD2		0x1f
+		MX8MN_IOMUXC_ENET_TD1_ENET1_RGMII_TD1		0x1f
+		MX8MN_IOMUXC_ENET_TD0_ENET1_RGMII_TD0		0x1f
+		MX8MN_IOMUXC_ENET_RD3_ENET1_RGMII_RD3		0x91
+		MX8MN_IOMUXC_ENET_RD2_ENET1_RGMII_RD2		0x91
+		MX8MN_IOMUXC_ENET_RD1_ENET1_RGMII_RD1		0x91
+		MX8MN_IOMUXC_ENET_RD0_ENET1_RGMII_RD0		0x91
+		MX8MN_IOMUXC_ENET_TXC_ENET1_RGMII_TXC		0x1f
+		MX8MN_IOMUXC_ENET_RXC_ENET1_RGMII_RXC		0x91
+		MX8MN_IOMUXC_ENET_RX_CTL_ENET1_RGMII_RX_CTL	0x91
+		MX8MN_IOMUXC_ENET_TX_CTL_ENET1_RGMII_TX_CTL	0x1f
+		/* Remove the MX8MM_IOMUXC_GPIO1_IO09_GPIO1_IO9 as not used */
+	>;
+};
+
+&pinctrl_fec1_sleep {
+	fsl,pins = <
+		MX8MN_IOMUXC_ENET_MDC_GPIO1_IO16		0x120
+		MX8MN_IOMUXC_ENET_MDIO_GPIO1_IO17		0x120
+		MX8MN_IOMUXC_ENET_TD3_GPIO1_IO18		0x120
+		MX8MN_IOMUXC_ENET_TD2_GPIO1_IO19		0x120
+		MX8MN_IOMUXC_ENET_TD1_GPIO1_IO20		0x120
+		MX8MN_IOMUXC_ENET_TD0_GPIO1_IO21		0x120
+		MX8MN_IOMUXC_ENET_RD3_GPIO1_IO29		0x120
+		MX8MN_IOMUXC_ENET_RD2_GPIO1_IO28		0x120
+		MX8MN_IOMUXC_ENET_RD1_GPIO1_IO27		0x120
+		MX8MN_IOMUXC_ENET_RD0_GPIO1_IO26		0x120
+		MX8MN_IOMUXC_ENET_TXC_GPIO1_IO23		0x120
+		MX8MN_IOMUXC_ENET_RXC_GPIO1_IO25		0x120
+		MX8MN_IOMUXC_ENET_RX_CTL_GPIO1_IO24		0x120
+		MX8MN_IOMUXC_ENET_TX_CTL_GPIO1_IO22		0x120
+		/* Remove the MX8MM_IOMUXC_GPIO1_IO09_GPIO1_IO9 as not used */
+	>;
+};
+
+&iomuxc {
+	pinctrl_captouch: captouchgrp {
+		fsl,pins = <
+			MX8MN_IOMUXC_SPDIF_RX_GPIO5_IO4		0x16
+		>;
+	};
+
+	pinctrl_i2c2: i2c2grp {
+		fsl,pins = <
+			MX8MN_IOMUXC_I2C2_SCL_I2C2_SCL		0x400001c3
+			MX8MN_IOMUXC_I2C2_SDA_I2C2_SDA		0x400001c3
+		>;
+	};
+
+	pinctrl_pca9534: pca9534grp {
+		fsl,pins = <
+			MX8MN_IOMUXC_GPIO1_IO07_GPIO1_IO7	0x16
+		>;
+	};
+
+	pinctrl_ptn5150: ptn5150grp {
+		fsl,pins = <
+			MX8MN_IOMUXC_GPIO1_IO11_GPIO1_IO11	0x16
+		>;
+	};
+
+	pinctrl_reg_usdhc2_vmmc: regusdhc2vmmcgrp {
+		fsl,pins = <
+			MX8MN_IOMUXC_SAI2_RXC_GPIO4_IO22	0x41
+		>;
+	};
+
+	pinctrl_uart1: uart1grp {
+		fsl,pins = <
+			MX8MN_IOMUXC_UART1_RXD_UART1_DCE_RX	0x140
+			MX8MN_IOMUXC_UART1_TXD_UART1_DCE_TX	0x140
+		>;
+	};
+
+	pinctrl_uart3: uart3grp {
+		fsl,pins = <
+			MX8MN_IOMUXC_UART3_RXD_UART3_DCE_RX	0x140
+			MX8MN_IOMUXC_UART3_TXD_UART3_DCE_TX	0x140
+		>;
+	};
+};
-- 
2.17.1

Re: [PATCH v2 1/3] dt-bindings: arm: fsl: Add binding for Variscite Symphony board with VAR-SOM-MX8MN

[Shawn Guo]

On Sat, Sep 19, 2020 at 04:13:30PM +0200, Krzysztof Kozlowski wrote:
> Add a binding for the Variscite Symphony evaluation kit board with
> VAR-SOM-MX8MN System on Module.
> 
> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
> Reviewed-by: Rob Herring <robh@kernel.org>

Applied all, thanks.