* [PATCH v1 1/3] dt-bindings: arm: fsl: Add Variscite VAR-SMARC-MX8M Plus
2026-11-10 18:18 [PATCH v1 0/3] Add support for Variscite VAR-SMARC-MX8M-PLUS and Echo board Stefano Radaelli
@ 2026-11-10 18:18 ` Stefano Radaelli
2026-11-10 18:18 ` [PATCH v1 2/3] arm64: dts: freescale: Add support for Variscite VAR-SMARC-MX8M-PLUS Stefano Radaelli
2026-11-10 18:18 ` [PATCH v1 3/3] arm64: dts: imx8mp-var-smarc: Add support for Variscite Echo board Stefano Radaelli
2 siblings, 0 replies; 5+ messages in thread
From: Stefano Radaelli @ 2026-11-10 18:18 UTC (permalink / raw)
To: Frank Li, linux-kernel, devicetree, imx, linux-arm-kernel
Cc: pierluigi.p, Stefano Radaelli, Rob Herring, Krzysztof Kozlowski,
Conor Dooley, Sascha Hauer, Pengutronix Kernel Team,
Fabio Estevam, Shawn Guo, Francesco Dolcini, Joseph Guo,
Josua Mayer, Ernest Van Hoecke, Maud Spierings, Mehmet Fide,
Markus Niebel, Hugo Villeneuve
From: Stefano Radaelli <stefano.r@variscite.com>
Add compatible strings for the Variscite VAR-SMARC-MX8M Plus module
and its Echo development board.
Signed-off-by: Stefano Radaelli <stefano.r@variscite.com>
---
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 d0126f54b387..397e1cae92d2 100644
--- a/Documentation/devicetree/bindings/arm/fsl.yaml
+++ b/Documentation/devicetree/bindings/arm/fsl.yaml
@@ -1354,6 +1354,12 @@ properties:
- const: variscite,var-dart-mx8mp # Variscite DART-MX8MP SOM
- const: fsl,imx8mp
+ - description: Variscite VAR-SMARC-MX8M Plus based boards
+ items:
+ - const: variscite,var-smarc-mx8mp-echo
+ - const: variscite,var-smarc-mx8mp
+ - const: fsl,imx8mp
+
- description: Variscite VAR-SOM-MX8M Plus based boards
items:
- const: variscite,var-som-mx8mp-symphony
--
2.47.3
^ permalink raw reply [flat|nested] 5+ messages in thread* [PATCH v1 2/3] arm64: dts: freescale: Add support for Variscite VAR-SMARC-MX8M-PLUS
2026-11-10 18:18 [PATCH v1 0/3] Add support for Variscite VAR-SMARC-MX8M-PLUS and Echo board Stefano Radaelli
2026-11-10 18:18 ` [PATCH v1 1/3] dt-bindings: arm: fsl: Add Variscite VAR-SMARC-MX8M Plus Stefano Radaelli
@ 2026-11-10 18:18 ` Stefano Radaelli
2026-11-10 18:18 ` [PATCH v1 3/3] arm64: dts: imx8mp-var-smarc: Add support for Variscite Echo board Stefano Radaelli
2 siblings, 0 replies; 5+ messages in thread
From: Stefano Radaelli @ 2026-11-10 18:18 UTC (permalink / raw)
To: Frank Li, linux-kernel, devicetree, imx, linux-arm-kernel
Cc: pierluigi.p, Stefano Radaelli, Rob Herring, Krzysztof Kozlowski,
Conor Dooley, Sascha Hauer, Pengutronix Kernel Team,
Fabio Estevam, Shawn Guo, Francesco Dolcini, Joseph Guo,
Josua Mayer, Ernest Van Hoecke, Maud Spierings, Mehmet Fide,
Markus Niebel, Hugo Villeneuve
From: Stefano Radaelli <stefano.r@variscite.com>
Add device tree support for the Variscite VAR-SMARC-MX8M-PLUS system on
module. This SOM is designed to be used with various carrier boards.
The module includes:
- NXP i.MX8M Plus MPU processor
- Up to 8GB of LPDDR4 memory
- Up to 128GB of eMMC storage memory
- Two integrated 10/100/1000 Mbps Ethernet transceivers
- WM8904 audio codec
- Dual-band Wi-Fi 6 and Bluetooth
- USB 3.0 hub
- GPIO expander
- RTC, EEPROM and ST33 TPM
Only SOM-specific peripherals are enabled by default. Carrier board
specific interfaces are left disabled to be enabled in the respective
carrier board device trees.
Link: https://variscite.com/system-on-module-som/i-mx-8/i-mx-8m-plus/var-smarc-mx8m-plus/
Signed-off-by: Stefano Radaelli <stefano.r@variscite.com>
---
.../boot/dts/freescale/imx8mp-var-smarc.dtsi | 640 ++++++++++++++++++
1 file changed, 640 insertions(+)
create mode 100644 arch/arm64/boot/dts/freescale/imx8mp-var-smarc.dtsi
diff --git a/arch/arm64/boot/dts/freescale/imx8mp-var-smarc.dtsi b/arch/arm64/boot/dts/freescale/imx8mp-var-smarc.dtsi
new file mode 100644
index 000000000000..139815cfd5f8
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mp-var-smarc.dtsi
@@ -0,0 +1,640 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Common dtsi for Variscite VAR-SMARC-MX8M-PLUS
+ *
+ * Link: https://variscite.com/system-on-module-som/i-mx-8/i-mx-8m-plus/var-smarc-mx8m-plus/
+ *
+ * Copyright (C) 2026 Variscite Ltd. - https://www.variscite.com/
+ *
+ */
+
+#include "imx8mp.dtsi"
+
+/ {
+ model = "Variscite VAR-SMARC-MX8M-PLUS Module";
+ compatible = "variscite,var-smarc-mx8mp", "fsl,imx8mp";
+
+ aliases {
+ ethernet0 = &eqos;
+ ethernet1 = &fec;
+ spi1 = &ecspi1;
+ spi2 = &ecspi2;
+ };
+
+ memory@40000000 {
+ device_type = "memory";
+ reg = <0x0 0x40000000 0 0xc0000000>,
+ <0x1 0x00000000 0 0xc0000000>;
+ };
+
+ reg_audio: regulator-audio-vdd {
+ compatible = "regulator-fixed";
+ regulator-name = "wm8904_smarc_supply";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ };
+
+ reg_phy0_vddio: regulator-phy0-vddio {
+ compatible = "regulator-fixed";
+ regulator-name = "vddio_phy0_1v8";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ };
+
+ reg_phy1_vddio: regulator-phy1-vddio {
+ compatible = "regulator-fixed";
+ regulator-name = "vddio_phy1_1v8";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ };
+
+ reg_usb_hub: regulator-usb-hub {
+ compatible = "regulator-fixed";
+ regulator-name = "usb-hub-1v1";
+ regulator-min-microvolt = <1100000>;
+ regulator-max-microvolt = <1100000>;
+ gpio = <&pcal6416 10 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ startup-delay-us = <10000>;
+ };
+
+ sound-smarc {
+ compatible = "simple-audio-card";
+ simple-audio-card,bitclock-master = <&smarc_codec_dai>;
+ simple-audio-card,format = "i2s";
+ simple-audio-card,frame-master = <&smarc_codec_dai>;
+ simple-audio-card,mclk-fs = <256>;
+ simple-audio-card,name = "wm8904-audio";
+ simple-audio-card,routing =
+ "Headphone Jack", "HPOUTL",
+ "Headphone Jack", "HPOUTR",
+ "IN2L", "Line In Jack",
+ "IN2R", "Line In Jack",
+ "IN1L", "Microphone Jack",
+ "IN1R", "Microphone Jack";
+ simple-audio-card,widgets =
+ "Microphone", "Microphone Jack",
+ "Headphone", "Headphone Jack",
+ "Line", "Line In Jack";
+
+ smarc_codec_dai: simple-audio-card,codec {
+ sound-dai = <&wm8904_smarc>;
+ };
+
+ simple-audio-card,cpu {
+ sound-dai = <&sai3>;
+ };
+ };
+
+ iw61x_pwrseq: wifi-pwrseq {
+ compatible = "mmc-pwrseq-simple";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_wifi>;
+ post-power-on-delay-ms = <100>;
+ power-off-delay-us = <10000>;
+ reset-gpios = <&gpio2 10 GPIO_ACTIVE_LOW>, /* WIFI_RESET */
+ <&gpio2 19 GPIO_ACTIVE_LOW>; /* WIFI_PWR_EN */
+ };
+};
+
+&A53_0 {
+ cpu-supply = <&buck2>;
+};
+
+&A53_1 {
+ cpu-supply = <&buck2>;
+};
+
+&A53_2 {
+ cpu-supply = <&buck2>;
+};
+
+&A53_3 {
+ cpu-supply = <&buck2>;
+};
+
+&eqos {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_eqos>;
+ /*
+ * The required RGMII TX and RX 2ns delays are implemented directly
+ * in hardware via passive delay elements on the SOM PCB.
+ * No delay configuration is needed in software via PHY driver.
+ */
+ phy-mode = "rgmii";
+ phy-handle = <ðphy0>;
+ status = "okay";
+
+ mdio {
+ compatible = "snps,dwmac-mdio";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ethphy0: ethernet-phy@4 {
+ compatible = "ethernet-phy-ieee802.3-c22";
+ reg = <4>;
+ reset-gpios = <&pcal6416 6 GPIO_ACTIVE_LOW>;
+ reset-assert-us = <10000>;
+ reset-deassert-us = <100000>;
+ vddio-supply = <®_phy0_vddio>;
+ ti,min-output-impedance;
+ enet-phy-lane-no-swap;
+ };
+
+ ethphy1: ethernet-phy@5 {
+ compatible = "ethernet-phy-ieee802.3-c22";
+ reg = <5>;
+ reset-gpios = <&pcal6416 7 GPIO_ACTIVE_LOW>;
+ reset-assert-us = <10000>;
+ reset-deassert-us = <20000>;
+ vddio-supply = <®_phy1_vddio>;
+ ti,min-output-impedance;
+ enet-phy-lane-no-swap;
+ };
+ };
+};
+
+&fec {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_fec>;
+ /*
+ * The required RGMII TX and RX 2ns delays are implemented directly
+ * in hardware via passive delay elements on the SOM PCB.
+ * No delay configuration is needed in software via PHY driver.
+ */
+ phy-mode = "rgmii";
+ phy-handle = <ðphy1>;
+ status = "okay";
+};
+
+&i2c1 {
+ clock-frequency = <400000>;
+ pinctrl-names = "default", "gpio";
+ pinctrl-0 = <&pinctrl_i2c1>;
+ pinctrl-1 = <&pinctrl_i2c1_gpio>;
+ scl-gpios = <&gpio2 6 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+ sda-gpios = <&gpio2 7 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+ status = "okay";
+
+ wm8904_smarc: codec@1a {
+ compatible = "wlf,wm8904";
+ reg = <0x1a>;
+ #sound-dai-cells = <0>;
+ clocks = <&audio_blk_ctrl IMX8MP_CLK_AUDIOMIX_SAI3_MCLK1>;
+ clock-names = "mclk";
+ DCVDD-supply = <®_audio>;
+ DBVDD-supply = <®_audio>;
+ AVDD-supply = <®_audio>;
+ CPVDD-supply = <®_audio>;
+ MICVDD-supply = <®_audio>;
+ wlf,drc-cfg-names = "default", "peaklimiter", "tradition",
+ "soft", "music";
+ /*
+ * Config registers per name, respectively:
+ * KNEE_IP = 0, KNEE_OP = 0, HI_COMP = 1, LO_COMP = 1
+ * KNEE_IP = -24, KNEE_OP = -6, HI_COMP = 1/4, LO_COMP = 1
+ * KNEE_IP = -42, KNEE_OP = -3, HI_COMP = 0, LO_COMP = 1
+ * KNEE_IP = -45, KNEE_OP = -9, HI_COMP = 1/8, LO_COMP = 1
+ * KNEE_IP = -30, KNEE_OP = -10.5, HI_COMP = 1/4, LO_COMP = 1
+ */
+ wlf,drc-cfg-regs = /bits/ 16 <0x01af 0x3248 0x0000 0x0000>,
+ /bits/ 16 <0x04af 0x324b 0x0010 0x0408>,
+ /bits/ 16 <0x04af 0x324b 0x0028 0x0704>,
+ /bits/ 16 <0x04af 0x324b 0x0018 0x078c>,
+ /bits/ 16 <0x04af 0x324b 0x0010 0x050e>;
+ /* GPIO1 = DMIC_CLK, don't touch others */
+ wlf,gpio-cfg = <0x0018>, <0xffff>, <0xffff>, <0xffff>;
+ wlf,in1l-as-dmicdat1;
+ };
+
+ pcal6416: gpio@20 {
+ compatible = "nxp,pcal6416";
+ reg = <0x20>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ interrupt-parent = <&gpio4>;
+ interrupts = <5 IRQ_TYPE_LEVEL_LOW>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_pcal6416>;
+ reset-gpios = <&gpio4 3 GPIO_ACTIVE_LOW>;
+ };
+
+ pca9450: pmic@25 {
+ compatible = "nxp,pca9450c";
+ reg = <0x25>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_pmic>;
+ interrupt-parent = <&gpio4>;
+ interrupts = <4 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 = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ };
+
+ ldo5: LDO5 {
+ regulator-name = "LDO5";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+ };
+ };
+ };
+
+ st33ktpm2xi2c: tpm@2e {
+ compatible = "st,st33ktpm2xi2c", "tcg,tpm-tis-i2c";
+ reg = <0x2e>;
+ label = "tpm";
+ reset-gpios = <&pcal6416 13 GPIO_ACTIVE_LOW>;
+ };
+
+ rtc@51 {
+ compatible = "nxp,pcf85263";
+ reg = <0x51>;
+ interrupt-parent = <&pcal6416>;
+ interrupts = <8 IRQ_TYPE_EDGE_FALLING>;
+ wakeup-source;
+ };
+};
+
+&i2c4 {
+ clock-frequency = <400000>;
+ pinctrl-names = "default", "gpio";
+ pinctrl-0 = <&pinctrl_i2c4>;
+ pinctrl-1 = <&pinctrl_i2c4_gpio>;
+ scl-gpios = <&gpio5 20 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+ sda-gpios = <&gpio5 21 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+ status = "okay";
+
+ eeprom@50 {
+ compatible = "atmel,24c04";
+ reg = <0x50>;
+ pagesize = <16>;
+ };
+};
+
+&sai3 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_sai3>;
+ assigned-clocks = <&clk IMX8MP_CLK_SAI3>;
+ assigned-clock-parents = <&clk IMX8MP_AUDIO_PLL1_OUT>;
+ assigned-clock-rates = <11536000>;
+ clocks = <&audio_blk_ctrl IMX8MP_CLK_AUDIOMIX_SAI3_IPG>,
+ <&clk IMX8MP_CLK_DUMMY>,
+ <&audio_blk_ctrl IMX8MP_CLK_AUDIOMIX_SAI3_MCLK1>,
+ <&clk IMX8MP_CLK_DUMMY>,
+ <&clk IMX8MP_CLK_DUMMY>;
+ clock-names = "bus", "mclk0", "mclk1", "mclk2", "mclk3";
+ fsl,sai-mclk-direction-output;
+ status = "okay";
+};
+
+&snvs_pwrkey {
+ status = "okay";
+};
+
+&snvs_rtc {
+ status = "disabled";
+};
+
+/* BT */
+&uart3 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart3>, <&pinctrl_bluetooth>;
+ assigned-clocks = <&clk IMX8MP_CLK_UART3>;
+ assigned-clock-parents = <&clk IMX8MP_SYS_PLL1_80M>;
+ uart-has-rtscts;
+ status = "okay";
+
+ bluetooth_iw61x: bluetooth {
+ compatible = "nxp,88w8987-bt";
+ };
+};
+
+&usb_dwc3_1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ hub_2_0: hub@1 {
+ compatible = "usb451,8142";
+ reg = <1>;
+ peer-hub = <&hub_3_0>;
+ reset-gpios = <&pcal6416 11 GPIO_ACTIVE_LOW>;
+ vdd-supply = <®_usb_hub>;
+ };
+
+ hub_3_0: hub@2 {
+ compatible = "usb451,8140";
+ reg = <2>;
+ peer-hub = <&hub_2_0>;
+ reset-gpios = <&pcal6416 11 GPIO_ACTIVE_LOW>;
+ vdd-supply = <®_usb_hub>;
+ };
+};
+
+/* WIFI */
+&usdhc1 {
+ 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;
+ mmc-pwrseq = <&iw61x_pwrseq>;
+ status = "okay";
+};
+
+/* eMMC */
+&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;
+ status = "okay";
+};
+
+&wdog1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_wdog1>;
+ fsl,ext-reset-output;
+ status = "okay";
+};
+
+&iomuxc {
+ /* Managed by user-space to enable bt correctly */
+ pinctrl_bluetooth: bluetoothgrp {
+ fsl,pins = <
+ /* BT_EN */
+ MX8MP_IOMUXC_SD1_STROBE__GPIO2_IO11 0xc0
+ >;
+ };
+
+ pinctrl_eqos: eqosgrp {
+ fsl,pins = <
+ MX8MP_IOMUXC_ENET_MDC__ENET_QOS_MDC 0x2
+ MX8MP_IOMUXC_ENET_MDIO__ENET_QOS_MDIO 0x2
+ MX8MP_IOMUXC_ENET_RD0__ENET_QOS_RGMII_RD0 0x90
+ MX8MP_IOMUXC_ENET_RD1__ENET_QOS_RGMII_RD1 0x90
+ MX8MP_IOMUXC_ENET_RD2__ENET_QOS_RGMII_RD2 0x90
+ MX8MP_IOMUXC_ENET_RD3__ENET_QOS_RGMII_RD3 0x90
+ MX8MP_IOMUXC_ENET_RXC__CCM_ENET_QOS_CLOCK_GENERATE_RX_CLK 0x90
+ MX8MP_IOMUXC_ENET_RX_CTL__ENET_QOS_RGMII_RX_CTL 0x90
+ MX8MP_IOMUXC_ENET_TD0__ENET_QOS_RGMII_TD0 0x16
+ MX8MP_IOMUXC_ENET_TD1__ENET_QOS_RGMII_TD1 0x16
+ MX8MP_IOMUXC_ENET_TD2__ENET_QOS_RGMII_TD2 0x16
+ MX8MP_IOMUXC_ENET_TD3__ENET_QOS_RGMII_TD3 0x16
+ MX8MP_IOMUXC_ENET_TX_CTL__ENET_QOS_RGMII_TX_CTL 0x16
+ MX8MP_IOMUXC_ENET_TXC__CCM_ENET_QOS_CLOCK_GENERATE_TX_CLK 0x16
+ >;
+ };
+
+ pinctrl_fec: fecgrp {
+ fsl,pins = <
+ MX8MP_IOMUXC_SAI1_RXD4__ENET1_RGMII_RD0 0x90
+ MX8MP_IOMUXC_SAI1_RXD5__ENET1_RGMII_RD1 0x90
+ MX8MP_IOMUXC_SAI1_RXD6__ENET1_RGMII_RD2 0x90
+ MX8MP_IOMUXC_SAI1_RXD7__ENET1_RGMII_RD3 0x90
+ MX8MP_IOMUXC_SAI1_TXC__ENET1_RGMII_RXC 0x90
+ MX8MP_IOMUXC_SAI1_TXFS__ENET1_RGMII_RX_CTL 0x90
+ MX8MP_IOMUXC_SAI1_TXD0__ENET1_RGMII_TD0 0x00
+ MX8MP_IOMUXC_SAI1_TXD1__ENET1_RGMII_TD1 0x00
+ MX8MP_IOMUXC_SAI1_TXD2__ENET1_RGMII_TD2 0x00
+ MX8MP_IOMUXC_SAI1_TXD3__ENET1_RGMII_TD3 0x00
+ MX8MP_IOMUXC_SAI1_TXD4__ENET1_RGMII_TX_CTL 0x00
+ MX8MP_IOMUXC_SAI1_TXD5__ENET1_RGMII_TXC 0x00
+ >;
+ };
+
+ pinctrl_i2c1: i2c1grp {
+ fsl,pins = <
+ MX8MP_IOMUXC_SD1_DATA4__I2C1_SCL 0x400001c2
+ MX8MP_IOMUXC_SD1_DATA5__I2C1_SDA 0x400001c2
+ >;
+ };
+
+ pinctrl_i2c1_gpio: i2c1-gpiogrp {
+ fsl,pins = <
+ MX8MP_IOMUXC_SD1_DATA4__GPIO2_IO06 0x1c2
+ MX8MP_IOMUXC_SD1_DATA5__GPIO2_IO07 0x1c2
+ >;
+ };
+
+ pinctrl_i2c4: i2c4grp {
+ fsl,pins = <
+ MX8MP_IOMUXC_I2C4_SCL__I2C4_SCL 0x400001c2
+ MX8MP_IOMUXC_I2C4_SDA__I2C4_SDA 0x400001c2
+ >;
+ };
+
+ pinctrl_i2c4_gpio: i2c4-gpiogrp {
+ fsl,pins = <
+ MX8MP_IOMUXC_I2C4_SCL__GPIO5_IO20 0x1c2
+ MX8MP_IOMUXC_I2C4_SDA__GPIO5_IO21 0x1c2
+ >;
+ };
+
+ pinctrl_pcal6416: pcal6416grp {
+ fsl,pins = <
+ MX8MP_IOMUXC_SAI1_RXD3__GPIO4_IO05 0xc0
+ MX8MP_IOMUXC_SAI1_RXD1__GPIO4_IO03 0xc0
+ >;
+ };
+
+ pinctrl_pmic: pmicgrp {
+ fsl,pins = <
+ MX8MP_IOMUXC_SAI1_RXD2__GPIO4_IO04 0x1c0
+ >;
+ };
+
+ pinctrl_sai3: sai3grp {
+ fsl,pins = <
+ MX8MP_IOMUXC_SAI3_TXFS__AUDIOMIX_SAI3_TX_SYNC 0xd6
+ MX8MP_IOMUXC_SAI3_TXC__AUDIOMIX_SAI3_TX_BCLK 0xd6
+ MX8MP_IOMUXC_SAI3_RXD__AUDIOMIX_SAI3_RX_DATA00 0xd6
+ MX8MP_IOMUXC_SAI3_TXD__AUDIOMIX_SAI3_TX_DATA00 0xd6
+ MX8MP_IOMUXC_SAI3_MCLK__AUDIOMIX_SAI3_MCLK 0xd6
+ MX8MP_IOMUXC_SAI3_RXFS__AUDIOMIX_SAI3_RX_SYNC 0xd6
+ MX8MP_IOMUXC_SAI3_RXC__AUDIOMIX_SAI3_RX_BCLK 0xd6
+ >;
+ };
+
+ pinctrl_uart3: uart3grp {
+ fsl,pins = <
+ MX8MP_IOMUXC_ECSPI1_SCLK__UART3_DCE_RX 0x140
+ MX8MP_IOMUXC_ECSPI1_MOSI__UART3_DCE_TX 0x140
+ MX8MP_IOMUXC_ECSPI1_MISO__UART3_DCE_CTS 0x140
+ MX8MP_IOMUXC_ECSPI1_SS0__UART3_DCE_RTS 0x140
+ >;
+ };
+
+ pinctrl_usdhc1: usdhc1grp {
+ fsl,pins = <
+ MX8MP_IOMUXC_SD1_CLK__USDHC1_CLK 0x190
+ MX8MP_IOMUXC_SD1_CMD__USDHC1_CMD 0x1d0
+ MX8MP_IOMUXC_SD1_DATA0__USDHC1_DATA0 0x1d0
+ MX8MP_IOMUXC_SD1_DATA1__USDHC1_DATA1 0x1d0
+ MX8MP_IOMUXC_SD1_DATA2__USDHC1_DATA2 0x1d0
+ MX8MP_IOMUXC_SD1_DATA3__USDHC1_DATA3 0x1d0
+ >;
+ };
+
+ pinctrl_usdhc1_100mhz: usdhc1-100mhzgrp {
+ fsl,pins = <
+ MX8MP_IOMUXC_SD1_CLK__USDHC1_CLK 0x194
+ MX8MP_IOMUXC_SD1_CMD__USDHC1_CMD 0x1d4
+ MX8MP_IOMUXC_SD1_DATA0__USDHC1_DATA0 0x1d4
+ MX8MP_IOMUXC_SD1_DATA1__USDHC1_DATA1 0x1d4
+ MX8MP_IOMUXC_SD1_DATA2__USDHC1_DATA2 0x1d4
+ MX8MP_IOMUXC_SD1_DATA3__USDHC1_DATA3 0x1d4
+ >;
+ };
+
+ pinctrl_usdhc1_200mhz: usdhc1-200mhzgrp {
+ fsl,pins = <
+ MX8MP_IOMUXC_SD1_CLK__USDHC1_CLK 0x196
+ MX8MP_IOMUXC_SD1_CMD__USDHC1_CMD 0x1d6
+ MX8MP_IOMUXC_SD1_DATA0__USDHC1_DATA0 0x1d6
+ MX8MP_IOMUXC_SD1_DATA1__USDHC1_DATA1 0x1d6
+ MX8MP_IOMUXC_SD1_DATA2__USDHC1_DATA2 0x1d6
+ MX8MP_IOMUXC_SD1_DATA3__USDHC1_DATA3 0x1d6
+ >;
+ };
+
+ pinctrl_usdhc3: usdhc3grp {
+ fsl,pins = <
+ MX8MP_IOMUXC_NAND_WE_B__USDHC3_CLK 0x190
+ MX8MP_IOMUXC_NAND_WP_B__USDHC3_CMD 0x1d0
+ MX8MP_IOMUXC_NAND_DATA04__USDHC3_DATA0 0x1d0
+ MX8MP_IOMUXC_NAND_DATA05__USDHC3_DATA1 0x1d0
+ MX8MP_IOMUXC_NAND_DATA06__USDHC3_DATA2 0x1d0
+ MX8MP_IOMUXC_NAND_DATA07__USDHC3_DATA3 0x1d0
+ MX8MP_IOMUXC_NAND_RE_B__USDHC3_DATA4 0x1d0
+ MX8MP_IOMUXC_NAND_CE2_B__USDHC3_DATA5 0x1d0
+ MX8MP_IOMUXC_NAND_CE3_B__USDHC3_DATA6 0x1d0
+ MX8MP_IOMUXC_NAND_CLE__USDHC3_DATA7 0x1d0
+ MX8MP_IOMUXC_NAND_CE1_B__USDHC3_STROBE 0x190
+ >;
+ };
+
+ pinctrl_usdhc3_100mhz: usdhc3-100mhzgrp {
+ fsl,pins = <
+ MX8MP_IOMUXC_NAND_WE_B__USDHC3_CLK 0x194
+ MX8MP_IOMUXC_NAND_WP_B__USDHC3_CMD 0x1d4
+ MX8MP_IOMUXC_NAND_DATA04__USDHC3_DATA0 0x1d4
+ MX8MP_IOMUXC_NAND_DATA05__USDHC3_DATA1 0x1d4
+ MX8MP_IOMUXC_NAND_DATA06__USDHC3_DATA2 0x1d4
+ MX8MP_IOMUXC_NAND_DATA07__USDHC3_DATA3 0x1d4
+ MX8MP_IOMUXC_NAND_RE_B__USDHC3_DATA4 0x1d4
+ MX8MP_IOMUXC_NAND_CE2_B__USDHC3_DATA5 0x1d4
+ MX8MP_IOMUXC_NAND_CE3_B__USDHC3_DATA6 0x1d4
+ MX8MP_IOMUXC_NAND_CLE__USDHC3_DATA7 0x1d4
+ MX8MP_IOMUXC_NAND_CE1_B__USDHC3_STROBE 0x194
+ >;
+ };
+
+ pinctrl_usdhc3_200mhz: usdhc3-200mhzgrp {
+ fsl,pins = <
+ MX8MP_IOMUXC_NAND_WE_B__USDHC3_CLK 0x196
+ MX8MP_IOMUXC_NAND_WP_B__USDHC3_CMD 0x1d6
+ MX8MP_IOMUXC_NAND_DATA04__USDHC3_DATA0 0x1d6
+ MX8MP_IOMUXC_NAND_DATA05__USDHC3_DATA1 0x1d6
+ MX8MP_IOMUXC_NAND_DATA06__USDHC3_DATA2 0x1d6
+ MX8MP_IOMUXC_NAND_DATA07__USDHC3_DATA3 0x1d6
+ MX8MP_IOMUXC_NAND_RE_B__USDHC3_DATA4 0x1d6
+ MX8MP_IOMUXC_NAND_CE2_B__USDHC3_DATA5 0x1d6
+ MX8MP_IOMUXC_NAND_CE3_B__USDHC3_DATA6 0x1d6
+ MX8MP_IOMUXC_NAND_CLE__USDHC3_DATA7 0x1d6
+ MX8MP_IOMUXC_NAND_CE1_B__USDHC3_STROBE 0x196
+ >;
+ };
+
+ pinctrl_wdog1: wdog1grp {
+ fsl,pins = <
+ MX8MP_IOMUXC_GPIO1_IO02__WDOG1_WDOG_B 0xc6
+ >;
+ };
+
+ pinctrl_wifi: wifigrp {
+ fsl,pins = <
+ /* WIFI_EN */
+ MX8MP_IOMUXC_SD1_RESET_B__GPIO2_IO10 0xc0
+ /* WIFI_PWR */
+ MX8MP_IOMUXC_SD2_RESET_B__GPIO2_IO19 0xc0
+ >;
+ };
+};
--
2.47.3
^ permalink raw reply [flat|nested] 5+ messages in thread* [PATCH v1 3/3] arm64: dts: imx8mp-var-smarc: Add support for Variscite Echo board
2026-11-10 18:18 [PATCH v1 0/3] Add support for Variscite VAR-SMARC-MX8M-PLUS and Echo board Stefano Radaelli
2026-11-10 18:18 ` [PATCH v1 1/3] dt-bindings: arm: fsl: Add Variscite VAR-SMARC-MX8M Plus Stefano Radaelli
2026-11-10 18:18 ` [PATCH v1 2/3] arm64: dts: freescale: Add support for Variscite VAR-SMARC-MX8M-PLUS Stefano Radaelli
@ 2026-11-10 18:18 ` Stefano Radaelli
2026-11-10 18:39 ` Fabio Estevam
2 siblings, 1 reply; 5+ messages in thread
From: Stefano Radaelli @ 2026-11-10 18:18 UTC (permalink / raw)
To: Frank Li, linux-kernel, devicetree, imx, linux-arm-kernel
Cc: pierluigi.p, Stefano Radaelli, Rob Herring, Krzysztof Kozlowski,
Conor Dooley, Sascha Hauer, Pengutronix Kernel Team,
Fabio Estevam, Shawn Guo, Francesco Dolcini, Joseph Guo,
Josua Mayer, Ernest Van Hoecke, Maud Spierings, Mehmet Fide,
Markus Niebel, Hugo Villeneuve
From: Stefano Radaelli <stefano.r@variscite.com>
Add device tree support for the Variscite Echo carrier board with the
VAR-SMARC-MX8M-PLUS system on module.
The Echo board includes:
- uSD card support
- USB ports and OTG
- Two Gigabit Ethernet interfaces
- UART, SPI and I2C interfaces
- HDMI display interface
- WM8904 audio codec
- Capacitive touchscreen
- GPIO expanders, buttons and LED
- PCIe interface
- CAN peripherals
Link: https://variscite.com/carrier-boards/echo-board/
Signed-off-by: Stefano Radaelli <stefano.r@variscite.com>
---
arch/arm64/boot/dts/freescale/Makefile | 1 +
.../dts/freescale/imx8mp-var-smarc-echo.dts | 647 ++++++++++++++++++
2 files changed, 648 insertions(+)
create mode 100644 arch/arm64/boot/dts/freescale/imx8mp-var-smarc-echo.dts
diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index e51558a49f8b..2492a78c01bc 100644
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile
@@ -724,6 +724,7 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mp-tx8p-ml81-moduline-display-106-av123z7m-n17.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mp-ultra-mach-sbc.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mp-var-dart-sonata.dtb
+dtb-$(CONFIG_ARCH_MXC) += imx8mp-var-smarc-echo.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mp-var-som-symphony.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mp-venice-gw71xx-2x.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mp-venice-gw72xx-2x.dtb
diff --git a/arch/arm64/boot/dts/freescale/imx8mp-var-smarc-echo.dts b/arch/arm64/boot/dts/freescale/imx8mp-var-smarc-echo.dts
new file mode 100644
index 000000000000..341d8af16cd8
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mp-var-smarc-echo.dts
@@ -0,0 +1,647 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Variscite Echo carrier board for VAR-SMARC-MX8M-PLUS
+ *
+ * Link: https://variscite.com/carrier-boards/echo-board/
+ *
+ * Copyright (C) 2026 Variscite Ltd. - https://www.variscite.com/
+ *
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/leds/common.h>
+#include <dt-bindings/phy/phy-imx8-pcie.h>
+#include "imx8mp-var-smarc.dtsi"
+
+/ {
+ model = "Variscite VAR-SMARC-MX8M-PLUS on Echo-Board";
+ compatible = "variscite,var-smarc-mx8mp-echo",
+ "variscite,var-smarc-mx8mp",
+ "fsl,imx8mp";
+
+ chosen {
+ stdout-path = &uart2;
+ };
+
+ gpio-keys {
+ compatible = "gpio-keys";
+
+ button-home {
+ label = "Home";
+ linux,code = <KEY_HOME>;
+ gpios = <&pcal6408_1 4 GPIO_ACTIVE_LOW>;
+ };
+
+ button-up {
+ label = "Up";
+ linux,code = <KEY_UP>;
+ gpios = <&pcal6408_1 5 GPIO_ACTIVE_LOW>;
+ };
+
+ button-down {
+ label = "Down";
+ linux,code = <KEY_DOWN>;
+ gpios = <&pcal6408_1 6 GPIO_ACTIVE_LOW>;
+ };
+
+ button-back {
+ label = "Back";
+ linux,code = <KEY_BACK>;
+ gpios = <&pcal6408_1 7 GPIO_ACTIVE_LOW>;
+ };
+ };
+
+ gpio-leds {
+ compatible = "gpio-leds";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_led>;
+
+ led-0 {
+ function = LED_FUNCTION_DISK;
+ gpios = <&gpio4 18 GPIO_ACTIVE_HIGH>;
+ linux,default-trigger = "mmc2";
+ };
+ };
+
+ hdmi-connector {
+ compatible = "hdmi-connector";
+ type = "c";
+
+ port {
+ hdmi_in: endpoint {
+ remote-endpoint = <&hdmi_tx_out>;
+ };
+ };
+ };
+
+ pcie0_refclk: pcie0-refclk {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <100000000>;
+ };
+
+ reg_audio_echo: regulator-audio-echo-vdd {
+ compatible = "regulator-fixed";
+ regulator-name = "wm8904_echo_supply";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ };
+
+ reg_base_per_3v3: regulator-base-per-3v3 {
+ compatible = "regulator-fixed";
+ regulator-name = "BASE_PER_3V3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ };
+
+ reg_usdhc2_vmmc: regulator-usdhc2-vmmc {
+ compatible = "regulator-fixed";
+ regulator-name = "VSD_3V3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ gpio = <&gpio1 8 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ startup-delay-us = <100>;
+ off-on-delay-us = <12000>;
+ };
+
+ reg_usdhc2_vqmmc: regulator-usdhc2-vqmmc {
+ compatible = "regulator-gpio";
+ regulator-name = "VSD_VSEL";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+ gpios = <&gpio1 4 GPIO_ACTIVE_HIGH>;
+ gpios-states = <1>;
+ states = <3300000 0>, <1800000 1>;
+ vin-supply = <&ldo5>;
+ };
+
+ sound-echo {
+ compatible = "simple-audio-card";
+ simple-audio-card,bitclock-master = <&echo_codec_dai>;
+ simple-audio-card,format = "i2s";
+ simple-audio-card,frame-master = <&echo_codec_dai>;
+ simple-audio-card,mclk-fs = <256>;
+ simple-audio-card,name = "wm8904-ech-audio";
+ simple-audio-card,routing =
+ "Headphone Jack", "HPOUTL",
+ "Headphone Jack", "HPOUTR",
+ "IN2L", "Line In Jack",
+ "IN2R", "Line In Jack",
+ "IN1L", "Microphone Jack",
+ "IN1R", "Microphone Jack";
+ simple-audio-card,widgets =
+ "Microphone", "Microphone Jack",
+ "Headphone", "Headphone Jack",
+ "Line", "Line In Jack";
+
+ echo_codec_dai: simple-audio-card,codec {
+ sound-dai = <&wm8904_echo>;
+ };
+
+ simple-audio-card,cpu {
+ sound-dai = <&sai2>;
+ };
+ };
+
+ sound-hdmi {
+ compatible = "fsl,imx-audio-hdmi";
+ model = "audio-hdmi";
+ audio-cpu = <&aud2htx>;
+ hdmi-out;
+ };
+};
+
+&aud2htx {
+ status = "okay";
+};
+
+&ecspi1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_ecspi1>;
+ cs-gpios = <&gpio5 17 GPIO_ACTIVE_LOW>;
+ status = "okay";
+};
+
+&ecspi2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_ecspi2>;
+ cs-gpios = <&gpio5 13 GPIO_ACTIVE_LOW>;
+ status = "okay";
+};
+
+&flexcan1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_flexcan1>;
+ status = "okay";
+};
+
+&flexcan2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_flexcan2>;
+ status = "okay";
+};
+
+&hdmi_pai {
+ status = "okay";
+};
+
+&hdmi_pvi {
+ status = "okay";
+};
+
+&hdmi_tx {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_hdmi>;
+ status = "okay";
+
+ ports {
+ port@1 {
+ hdmi_tx_out: endpoint {
+ remote-endpoint = <&hdmi_in>;
+ };
+ };
+ };
+};
+
+&hdmi_tx_phy {
+ status = "okay";
+};
+
+&i2c2 {
+ clock-frequency = <400000>;
+ pinctrl-names = "default", "gpio";
+ pinctrl-0 = <&pinctrl_i2c2>;
+ pinctrl-1 = <&pinctrl_i2c2_gpio>;
+ scl-gpios = <&gpio2 8 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+ sda-gpios = <&gpio2 9 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+ status = "okay";
+
+ typec@3d {
+ compatible = "nxp,ptn5150";
+ reg = <0x3d>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_ptn5150>;
+ interrupt-parent = <&gpio1>;
+ interrupts = <10 IRQ_TYPE_EDGE_FALLING>;
+
+ port {
+ typec_dr_sw: endpoint {
+ remote-endpoint = <&usb3_drd_sw>;
+ };
+ };
+ };
+};
+
+&i2c3 {
+ clock-frequency = <400000>;
+ 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";
+};
+
+&i2c4 {
+ wm8904_echo: codec@1a {
+ compatible = "wlf,wm8904";
+ reg = <0x1a>;
+ #sound-dai-cells = <0>;
+ clocks = <&audio_blk_ctrl IMX8MP_CLK_AUDIOMIX_SAI2_MCLK1>;
+ clock-names = "mclk";
+ DCVDD-supply = <®_audio_echo>;
+ DBVDD-supply = <®_audio_echo>;
+ AVDD-supply = <®_audio_echo>;
+ CPVDD-supply = <®_audio_echo>;
+ MICVDD-supply = <®_audio_echo>;
+ wlf,drc-cfg-names = "default", "peaklimiter", "tradition",
+ "soft", "music";
+ /*
+ * Config registers per name, respectively:
+ * KNEE_IP = 0, KNEE_OP = 0, HI_COMP = 1, LO_COMP = 1
+ * KNEE_IP = -24, KNEE_OP = -6, HI_COMP = 1/4, LO_COMP = 1
+ * KNEE_IP = -42, KNEE_OP = -3, HI_COMP = 0, LO_COMP = 1
+ * KNEE_IP = -45, KNEE_OP = -9, HI_COMP = 1/8, LO_COMP = 1
+ * KNEE_IP = -30, KNEE_OP = -10.5, HI_COMP = 1/4, LO_COMP = 1
+ */
+ wlf,drc-cfg-regs = /bits/ 16 <0x01af 0x3248 0x0000 0x0000>,
+ /bits/ 16 <0x04af 0x324b 0x0010 0x0408>,
+ /bits/ 16 <0x04af 0x324b 0x0028 0x0704>,
+ /bits/ 16 <0x04af 0x324b 0x0018 0x078c>,
+ /bits/ 16 <0x04af 0x324b 0x0010 0x050e>;
+ /* GPIO1 = DMIC_CLK, don't touch others */
+ wlf,gpio-cfg = <0x0018>, <0xffff>, <0xffff>, <0xffff>;
+ wlf,in1l-as-dmicdat1;
+ };
+
+ pcal6408_1: gpio@20 {
+ compatible = "nxp,pcal6408";
+ reg = <0x20>;
+ vcc-supply = <®_base_per_3v3>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_pcal6408>;
+ interrupt-parent = <&gpio1>;
+ interrupts = <5 IRQ_TYPE_EDGE_FALLING>;
+ };
+
+ pcal6408_2: gpio@21 {
+ compatible = "nxp,pcal6408";
+ reg = <0x21>;
+ vcc-supply = <®_base_per_3v3>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
+
+ ft5x06_ts: touchscreen@38 {
+ compatible = "edt,edt-ft5206";
+ reg = <0x38>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_captouch>;
+ reset-gpios = <&pcal6408_1 0 GPIO_ACTIVE_LOW>;
+ interrupt-parent = <&gpio1>;
+ interrupts = <14 IRQ_TYPE_EDGE_FALLING>;
+ touchscreen-size-x = <800>;
+ touchscreen-size-y = <480>;
+ touchscreen-inverted-x;
+ touchscreen-inverted-y;
+ };
+};
+
+&i2c6 {
+ clock-frequency = <400000>;
+ pinctrl-names = "default", "gpio";
+ pinctrl-0 = <&pinctrl_i2c6>;
+ pinctrl-1 = <&pinctrl_i2c6_gpio>;
+ scl-gpios = <&gpio3 19 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+ sda-gpios = <&gpio3 20 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+ status = "okay";
+};
+
+&lcdif3 {
+ status = "okay";
+};
+
+&pcie {
+ reset-gpios = <&pcal6416 14 GPIO_ACTIVE_LOW>;
+ status = "okay";
+};
+
+&pcie_phy {
+ fsl,refclk-pad-mode = <IMX8_PCIE_REFCLK_PAD_INPUT>;
+ clocks = <&pcie0_refclk>;
+ clock-names = "ref";
+ status = "okay";
+};
+
+&pwm1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_pwm1>;
+ status = "okay";
+};
+
+&pwm2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_pwm2>;
+ status = "okay";
+};
+
+&sai2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_sai2>;
+ assigned-clocks = <&clk IMX8MP_CLK_SAI2>;
+ assigned-clock-parents = <&clk IMX8MP_AUDIO_PLL1_OUT>;
+ assigned-clock-rates = <11536000>;
+ clocks = <&audio_blk_ctrl IMX8MP_CLK_AUDIOMIX_SAI2_IPG>,
+ <&clk IMX8MP_CLK_DUMMY>,
+ <&audio_blk_ctrl IMX8MP_CLK_AUDIOMIX_SAI2_MCLK1>,
+ <&clk IMX8MP_CLK_DUMMY>,
+ <&clk IMX8MP_CLK_DUMMY>;
+ clock-names = "bus", "mclk0", "mclk1", "mclk2", "mclk3";
+ fsl,sai-mclk-direction-output;
+ status = "okay";
+};
+
+/* Header */
+&uart1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart1>;
+ status = "okay";
+};
+
+/* Console */
+&uart2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart2>;
+ status = "okay";
+};
+
+/* Header */
+&uart4 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart4>;
+ status = "okay";
+};
+
+&usb3_0 {
+ status = "okay";
+};
+
+&usb3_1 {
+ status = "okay";
+};
+
+&usb3_phy0 {
+ fsl,phy-tx-vref-tune-percent = <122>;
+ fsl,phy-tx-preemp-amp-tune-microamp = <1800>;
+ fsl,phy-tx-vboost-level-microvolt = <1156>;
+ fsl,phy-comp-dis-tune-percent = <115>;
+ fsl,phy-pcs-tx-deemph-3p5db-attenuation-db = <33>;
+ fsl,phy-pcs-tx-swing-full-percent = <100>;
+ status = "okay";
+};
+
+&usb3_phy1 {
+ fsl,phy-tx-preemp-amp-tune-microamp = <1800>;
+ fsl,phy-tx-vref-tune-percent = <116>;
+ status = "okay";
+};
+
+&usb_dwc3_0 {
+ adp-disable;
+ dr_mode = "otg";
+ hnp-disable;
+ maximum-speed = "high-speed";
+ snps,dis-u1-entry-quirk;
+ snps,dis-u2-entry-quirk;
+ srp-disable;
+ usb-role-switch;
+ status = "okay";
+
+ port {
+ usb3_drd_sw: endpoint {
+ remote-endpoint = <&typec_dr_sw>;
+ };
+ };
+};
+
+&usb_dwc3_1 {
+ dr_mode = "host";
+ /* Prevent controller from entering U1/U2 power-saving states. */
+ snps,dis-u1-entry-quirk;
+ snps,dis-u2-entry-quirk;
+ status = "okay";
+};
+
+&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>;
+ cd-gpios = <&gpio2 12 GPIO_ACTIVE_LOW>;
+ vmmc-supply = <®_usdhc2_vmmc>;
+ vqmmc-supply = <®_usdhc2_vqmmc>;
+ bus-width = <4>;
+ status = "okay";
+};
+
+&iomuxc {
+ pinctrl_captouch: captouchgrp {
+ fsl,pins = <
+ MX8MP_IOMUXC_GPIO1_IO14__GPIO1_IO14 0x16
+ >;
+ };
+
+ pinctrl_ecspi1: ecspi1grp {
+ fsl,pins = <
+ MX8MP_IOMUXC_I2C1_SCL__ECSPI1_SCLK 0x12
+ MX8MP_IOMUXC_I2C1_SDA__ECSPI1_MOSI 0x12
+ MX8MP_IOMUXC_I2C2_SCL__ECSPI1_MISO 0x12
+ MX8MP_IOMUXC_I2C2_SDA__GPIO5_IO17 0x12
+ >;
+ };
+
+ pinctrl_ecspi2: ecspi2grp {
+ fsl,pins = <
+ MX8MP_IOMUXC_ECSPI2_SCLK__ECSPI2_SCLK 0x12
+ MX8MP_IOMUXC_ECSPI2_MOSI__ECSPI2_MOSI 0x12
+ MX8MP_IOMUXC_ECSPI2_MISO__ECSPI2_MISO 0x12
+ MX8MP_IOMUXC_ECSPI2_SS0__GPIO5_IO13 0x12
+ >;
+ };
+
+ pinctrl_flexcan1: flexcan1grp {
+ fsl,pins = <
+ MX8MP_IOMUXC_SPDIF_TX__CAN1_TX 0x154
+ MX8MP_IOMUXC_SPDIF_RX__CAN1_RX 0x154
+ >;
+ };
+
+ pinctrl_flexcan2: flexcan2grp {
+ fsl,pins = <
+ MX8MP_IOMUXC_HDMI_CEC__CAN2_TX 0x154
+ MX8MP_IOMUXC_SAI5_MCLK__CAN2_RX 0x154
+ >;
+ };
+
+ pinctrl_hdmi: hdmigrp {
+ fsl,pins = <
+ MX8MP_IOMUXC_HDMI_DDC_SCL__HDMIMIX_HDMI_SCL 0x400001c2
+ MX8MP_IOMUXC_HDMI_DDC_SDA__HDMIMIX_HDMI_SDA 0x400001c2
+ MX8MP_IOMUXC_HDMI_HPD__HDMIMIX_HDMI_HPD 0x40000010
+ >;
+ };
+
+ pinctrl_i2c2: i2c2grp {
+ fsl,pins = <
+ MX8MP_IOMUXC_SD1_DATA6__I2C2_SCL 0x400001c2
+ MX8MP_IOMUXC_SD1_DATA7__I2C2_SDA 0x400001c2
+ >;
+ };
+
+ pinctrl_i2c2_gpio: i2c2-gpiogrp {
+ fsl,pins = <
+ MX8MP_IOMUXC_SD1_DATA6__GPIO2_IO08 0x1c2
+ MX8MP_IOMUXC_SD1_DATA7__GPIO2_IO09 0x1c2
+ >;
+ };
+
+ pinctrl_i2c3: i2c3grp {
+ fsl,pins = <
+ MX8MP_IOMUXC_I2C3_SCL__I2C3_SCL 0x400001c2
+ MX8MP_IOMUXC_I2C3_SDA__I2C3_SDA 0x400001c2
+ >;
+ };
+
+ pinctrl_i2c3_gpio: i2c3-gpiogrp {
+ fsl,pins = <
+ MX8MP_IOMUXC_I2C3_SCL__GPIO5_IO18 0x1c2
+ MX8MP_IOMUXC_I2C3_SDA__GPIO5_IO19 0x1c2
+ >;
+ };
+
+ pinctrl_i2c6: i2c6grp {
+ fsl,pins = <
+ MX8MP_IOMUXC_SAI5_RXFS__I2C6_SCL 0x400001c2
+ MX8MP_IOMUXC_SAI5_RXC__I2C6_SDA 0x400001c2
+ >;
+ };
+
+ pinctrl_i2c6_gpio: i2c6-gpiogrp {
+ fsl,pins = <
+ MX8MP_IOMUXC_SAI5_RXFS__GPIO3_IO19 0x1c2
+ MX8MP_IOMUXC_SAI5_RXC__GPIO3_IO20 0x1c2
+ >;
+ };
+
+ pinctrl_led: ledgrp {
+ fsl,pins = <
+ MX8MP_IOMUXC_SAI1_TXD6__GPIO4_IO18 0xc6
+ >;
+ };
+
+ pinctrl_pcal6408: pcal6408grp {
+ fsl,pins = <
+ MX8MP_IOMUXC_GPIO1_IO05__GPIO1_IO05 0x1c6
+ >;
+ };
+
+ pinctrl_ptn5150: ptn5150grp {
+ fsl,pins = <
+ MX8MP_IOMUXC_GPIO1_IO10__GPIO1_IO10 0x10
+ >;
+ };
+
+ pinctrl_pwm1: pwm1grp {
+ fsl,pins = <
+ MX8MP_IOMUXC_SPDIF_EXT_CLK__PWM1_OUT 0x116
+ >;
+ };
+
+ pinctrl_pwm2: pwm2grp {
+ fsl,pins = <
+ MX8MP_IOMUXC_GPIO1_IO11__PWM2_OUT 0x116
+ >;
+ };
+
+ pinctrl_sai2: sai2grp {
+ fsl,pins = <
+ MX8MP_IOMUXC_SAI2_TXFS__AUDIOMIX_SAI2_TX_SYNC 0xd6
+ MX8MP_IOMUXC_SAI2_TXC__AUDIOMIX_SAI2_TX_BCLK 0xd6
+ MX8MP_IOMUXC_SAI2_RXD0__AUDIOMIX_SAI2_RX_DATA00 0xd6
+ MX8MP_IOMUXC_SAI2_TXD0__AUDIOMIX_SAI2_TX_DATA00 0xd6
+ MX8MP_IOMUXC_SAI2_MCLK__AUDIOMIX_SAI2_MCLK 0xd6
+ >;
+ };
+
+ pinctrl_uart1: uart1grp {
+ fsl,pins = <
+ MX8MP_IOMUXC_UART1_RXD__UART1_DCE_RX 0x40
+ MX8MP_IOMUXC_UART1_TXD__UART1_DCE_TX 0x40
+ MX8MP_IOMUXC_UART3_RXD__UART1_DCE_CTS 0x40
+ MX8MP_IOMUXC_UART3_TXD__UART1_DCE_RTS 0x40
+ >;
+ };
+
+ pinctrl_uart2: uart2grp {
+ fsl,pins = <
+ MX8MP_IOMUXC_UART2_RXD__UART2_DCE_RX 0x40
+ MX8MP_IOMUXC_UART2_TXD__UART2_DCE_TX 0x40
+ >;
+ };
+
+ pinctrl_uart4: uart4grp {
+ fsl,pins = <
+ MX8MP_IOMUXC_UART4_RXD__UART4_DCE_RX 0x40
+ MX8MP_IOMUXC_UART4_TXD__UART4_DCE_TX 0x40
+ >;
+ };
+
+ 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_usdhc2_gpio: usdhc2-gpiogrp {
+ fsl,pins = <
+ /* Card detect */
+ MX8MP_IOMUXC_SD2_CD_B__GPIO2_IO12 0x10
+ /* Power enable */
+ MX8MP_IOMUXC_GPIO1_IO08__GPIO1_IO08 0x1c4
+ /* Voltage select */
+ MX8MP_IOMUXC_GPIO1_IO04__GPIO1_IO04 0xc0
+ >;
+ };
+};
--
2.47.3
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: [PATCH v1 3/3] arm64: dts: imx8mp-var-smarc: Add support for Variscite Echo board
2026-11-10 18:18 ` [PATCH v1 3/3] arm64: dts: imx8mp-var-smarc: Add support for Variscite Echo board Stefano Radaelli
@ 2026-11-10 18:39 ` Fabio Estevam
0 siblings, 0 replies; 5+ messages in thread
From: Fabio Estevam @ 2026-11-10 18:39 UTC (permalink / raw)
To: Stefano Radaelli
Cc: Frank Li, linux-kernel, devicetree, imx, linux-arm-kernel,
pierluigi.p, Stefano Radaelli, Rob Herring, Krzysztof Kozlowski,
Conor Dooley, Sascha Hauer, Pengutronix Kernel Team, Shawn Guo,
Francesco Dolcini, Joseph Guo, Josua Mayer, Ernest Van Hoecke,
Maud Spierings, Mehmet Fide, Markus Niebel, Hugo Villeneuve
Hi Stefano,
On Tue, Nov 10, 2026 at 3:21 PM Stefano Radaelli
<stefano.radaelli21@gmail.com> wrote:
> + ft5x06_ts: touchscreen@38 {
The ft5x06_ts label is unused. Should it be removed?
> +/* Header */
> +&uart1 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_uart1>;
Shouldn't you pass uart-has-rtscts, as both RTS and CTS lines are
described in pinctrl_uart1?
^ permalink raw reply [flat|nested] 5+ messages in thread