On 03/03/2023 00:16, Marek Vasut wrote:
> Add support for DH electronics i.MX8M Plus DHCOM SoM on PDK3 carrier board.
> Currently supported are serial console, EQoS and FEC ethernets, eMMC, SD,
> SPI NOR, CAN, M.2 E-Key or M.2 M-Key PCIe, USB .
>
> Signed-off-by: Marek Vasut <marex@xxxxxxx>
> ---
> Cc: Fabio Estevam <festevam@xxxxxxxxx>
> Cc: Frieder Schrempf <frieder.schrempf@xxxxxxxxxx>
> Cc: Krzysztof Kozlowski <krzysztof.kozlowski+dt@xxxxxxxxxx>
> Cc: Li Yang <leoyang.li@xxxxxxx>
> Cc: Marcel Ziswiler <marcel.ziswiler@xxxxxxxxxxx>
> Cc: Marek Vasut <marex@xxxxxxx>
> Cc: Matthias Schiffer <matthias.schiffer@xxxxxxxxxxxx>
> Cc: Max Krummenacher <max.krummenacher@xxxxxxxxxxx>
> Cc: NXP Linux Team <linux-imx@xxxxxxx>
> Cc: Pengutronix Kernel Team <kernel@xxxxxxxxxxxxxx>
> Cc: Rob Herring <robh+dt@xxxxxxxxxx>
> Cc: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
> Cc: Shawn Guo <shawnguo@xxxxxxxxxx>
> Cc: Stefan Wahren <stefan.wahren@xxxxxxxx>
> Cc: devicetree@xxxxxxxxxxxxxxx
> Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
> ---
> arch/arm64/boot/dts/freescale/Makefile | 1 +
> .../boot/dts/freescale/imx8mp-dhcom-pdk3.dts | 321 ++++++++++++++++++
> 2 files changed, 322 insertions(+)
> create mode 100644 arch/arm64/boot/dts/freescale/imx8mp-dhcom-pdk3.dts
>
> diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
> index 198fff3731ae4..f90b126afbaad 100644
> --- a/arch/arm64/boot/dts/freescale/Makefile
> +++ b/arch/arm64/boot/dts/freescale/Makefile
> @@ -91,6 +91,7 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mn-venice-gw7902.dtb
> dtb-$(CONFIG_ARCH_MXC) += imx8mp-beacon-kit.dtb
> dtb-$(CONFIG_ARCH_MXC) += imx8mp-debix-model-a.dtb
> dtb-$(CONFIG_ARCH_MXC) += imx8mp-dhcom-pdk2.dtb
> +dtb-$(CONFIG_ARCH_MXC) += imx8mp-dhcom-pdk3.dtb
> dtb-$(CONFIG_ARCH_MXC) += imx8mp-evk.dtb
> dtb-$(CONFIG_ARCH_MXC) += imx8mp-icore-mx8mp-edimm2.2.dtb
> dtb-$(CONFIG_ARCH_MXC) += imx8mp-msc-sm2s-ep1.dtb
> diff --git a/arch/arm64/boot/dts/freescale/imx8mp-dhcom-pdk3.dts b/arch/arm64/boot/dts/freescale/imx8mp-dhcom-pdk3.dts
> new file mode 100644
> index 0000000000000..c5f0607f43bcc
> --- /dev/null
> +++ b/arch/arm64/boot/dts/freescale/imx8mp-dhcom-pdk3.dts
> @@ -0,0 +1,321 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * Copyright (C) 2023 Marek Vasut <marex@xxxxxxx>
Isn't having personal copyrights with a company/work email a bit
contradicting itself?
> + *
> + * DHCOM iMX8MP variant:
> + * DHCM-iMX8ML8-C160-R409-F1638-SPI16-GE-CAN2-SD-RTC-WBTA-ADC-T-RGB-CSI2-HS-I-01D2
> + * DHCOM PCB number: 660-100 or newer
> + * PDK3 PCB number: 669-100 or newer
> + */
> +
> +/dts-v1/;
> +
> +#include <dt-bindings/leds/common.h>
> +#include <dt-bindings/phy/phy-imx8-pcie.h>
> +#include "imx8mp-dhcom-som.dtsi"
> +
> +/ {
> + model = "DH electronics i.MX8M Plus DHCOM Premium Developer Kit (3)";
> + compatible = "dh,imx8mp-dhcom-pdk3", "dh,imx8mp-dhcom-som",
> + "fsl,imx8mp";
> +
> + chosen {
> + stdout-path = &uart1;
> + };
> +
> + clk_ext_audio_codec: clock-codec {
> + #clock-cells = <0>;
> + clock-frequency = <24000000>;
> + compatible = "fixed-clock";
> + };
> +
> + clk_xtal25: clk-xtal25 {
Keep same prefix, so either clock or clk (preferably clock to match
further usage)
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <25000000>;
> + };
> +
> + connector {
> + compatible = "usb-c-connector";
> + label = "USB-C";
> + data-role = "dual";
> +
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + port@0 {
> + reg = <0>;
> +
> + usb_c_0_hs_ep: endpoint {
> + remote-endpoint = <&dwc3_0_hs_ep>;
> + };
> + };
> +
> + port@1 {
> + reg = <1>;
> +
> + usb_c_0_ss_ep: endpoint {
> + remote-endpoint = <&ptn5150_in_ep>;
> + };
> + };
> + };
> + };
> +
> + gpio-keys {
> + compatible = "gpio-keys";
> +
> + button-0 {
> + gpios = <&gpio1 9 GPIO_ACTIVE_LOW>; /* GPIO A */
> + label = "TA1-GPIO-A";
> + linux,code = <KEY_A>;
> + pinctrl-0 = <&pinctrl_dhcom_a>;
> + pinctrl-names = "default";
> + wakeup-source;
> + };
> +
> + button-1 {
> + gpios = <&gpio1 8 GPIO_ACTIVE_LOW>; /* GPIO B */
> + label = "TA2-GPIO-B";
> + linux,code = <KEY_B>;
> + pinctrl-0 = <&pinctrl_dhcom_b>;
> + pinctrl-names = "default";
> + wakeup-source;
> + };
> +
> + button-2 {
> + gpios = <&gpio5 2 GPIO_ACTIVE_LOW>; /* GPIO C */
> + label = "TA3-GPIO-C";
> + linux,code = <KEY_C>;
> + pinctrl-0 = <&pinctrl_dhcom_c>;
> + pinctrl-names = "default";
> + wakeup-source;
> + };
> +
> + button-3 {
> + gpios = <&gpio5 22 GPIO_ACTIVE_LOW>; /* GPIO E */
> + label = "TA4-GPIO-E";
> + linux,code = <KEY_E>;
> + pinctrl-0 = <&pinctrl_dhcom_e>;
> + pinctrl-names = "default";
> + wakeup-source;
> + };
> + };
> +
> + led {
> + compatible = "gpio-leds";
> +
> + led-0 {
> + color = <LED_COLOR_ID_GREEN>;
> + default-state = "off";
> + function = LED_FUNCTION_INDICATOR;
> + function-enumerator = <0>;
> + gpios = <&gpio4 27 GPIO_ACTIVE_HIGH>; /* GPIO D */
> + pinctrl-0 = <&pinctrl_dhcom_d>;
> + pinctrl-names = "default";
> + };
> +
> + led-1 {
> + color = <LED_COLOR_ID_GREEN>;
> + default-state = "off";
> + function = LED_FUNCTION_INDICATOR;
> + function-enumerator = <1>;
> + gpios = <&gpio5 23 GPIO_ACTIVE_HIGH>; /* GPIO F */
> + pinctrl-0 = <&pinctrl_dhcom_f>;
> + pinctrl-names = "default";
> + };
> +
> + led-2 {
> + color = <LED_COLOR_ID_GREEN>;
> + default-state = "off";
> + function = LED_FUNCTION_INDICATOR;
> + function-enumerator = <2>;
> + gpios = <&gpio1 0 GPIO_ACTIVE_HIGH>; /* GPIO G */
> + pinctrl-0 = <&pinctrl_dhcom_g>;
> + pinctrl-names = "default";
> + };
> +
> + led-3 {
> + color = <LED_COLOR_ID_GREEN>;
> + default-state = "off";
> + function = LED_FUNCTION_INDICATOR;
> + function-enumerator = <3>;
> + gpios = <&gpio1 5 GPIO_ACTIVE_HIGH>; /* GPIO I */
> + pinctrl-0 = <&pinctrl_dhcom_i>;
> + pinctrl-names = "default";
> + };
> + };
> +
> + reg_avdd: regulator-avdd { /* AUDIO_VDD */
> + compatible = "regulator-fixed";
> + regulator-always-on;
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-name = "AUDIO_VDD";
> + };
> +};
> +
> +&i2c5 {
> + i2cmux@70 {
i2c-mux@
> + compatible = "nxp,pca9540";
> + reg = <0x70>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + i2cmuxed0: i2c@0 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0>;
> +
> + typec@3d {
> + compatible = "nxp,ptn5150";
> + reg = <0x3d>;
> + interrupt-parent = <&gpio4>;
> + interrupts = <25 IRQ_TYPE_EDGE_FALLING>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_ptn5150>;
> + status = "okay";
okay is by default for new nodes
> +
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + port@0 {
> + reg = <0>;
> +
> + ptn5150_in_ep: endpoint {
> + remote-endpoint = <&usb_c_0_ss_ep>;
> + };
> + };
> +
> + port@1 {
> + reg = <1>;
> +
> + ptn5150_out_ep: endpoint {
> + remote-endpoint = <&dwc3_0_ss_ep>;
> + };
> + };
> + };
> + };
> +
> + power-sensor@40 {
> + compatible = "ti,ina238";
> + reg = <0x40>;
> + shunt-resistor = <20000>; /* 0.02 R */
> + ti,shunt-gain = <1>; /* Drop cca. 40mV */
> + };
> +
> + eeprom_board: eeprom@54 {
> + compatible = "atmel,24c04";
> + pagesize = <16>;
> + reg = <0x54>;
> + };
> +
> + pcieclk: clk@6b {
clock@
> + compatible = "skyworks,si52144";
> + reg = <0x6b>;
> + clocks = <&clk_xtal25>;
> + #clock-cells = <1>;
> + };
> + };
> +
> + i2cmuxed1: i2c@1 { /* HDMI DDC I2C */
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <1>;
> + };
> + };
> +};
> +
> +ðphy0g {
> + reg = <7>;
> +};
> +
> +&fec { /* Second ethernet */
> + pinctrl-0 = <&pinctrl_fec_rgmii>;
> + phy-handle = <ðphypdk>;
> + phy-mode = "rgmii-id";
> +
> + mdio {
> + ethphypdk: ethernet-phy@7 { /* Micrel KSZ9131RNXI */
> + compatible = "ethernet-phy-id0022.1642",
> + "ethernet-phy-ieee802.3-c22";
> + interrupt-parent = <&gpio4>;
> + interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
> + pinctrl-0 = <&pinctrl_ethphy1>;
> + pinctrl-names = "default";
> + reg = <7>;
> + reset-assert-us = <1000>;
> + /* RESET_N signal rise time ~100ms */
> + reset-deassert-us = <120000>;
> + reset-gpios = <&gpio4 2 GPIO_ACTIVE_LOW>;
> + status = "okay";
okay is by default for new nodes
> + };
> + };
> +};
> +
> +&flexcan1 {
> + status = "okay";
> +};
Best regards,
Krzysztof
