arm64: dts: imx8mp: Add support for DH electronics i.MX8M Plus DHCOM and PDK3

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@denx.de>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index 2eb746f..e2f86df 100644 (file)
--- 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 (file)
index 0000000..b5e76b9
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mp-dhcom-pdk3.dts
@@ -0,0 +1,306 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (C) 2023 Marek Vasut <marex@denx.de>
+ *
+ * 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_pcie: clock-pcie {
+               compatible = "fixed-clock";
+               #clock-cells = <0>;
+               clock-frequency = <100000000>;
+       };
+
+       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 {
+       i2c-mux@70 {
+               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>;
+
+                               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>;
+                       };
+               };
+
+               i2cmuxed1: i2c@1 {      /* HDMI DDC I2C */
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       reg = <1>;
+               };
+       };
+};
+
+&ethphy0g {
+       reg = <7>;
+};
+
+&fec { /* Second ethernet */
+       pinctrl-0 = <&pinctrl_fec_rgmii>;
+       phy-handle = <&ethphypdk>;
+       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>;
+               };
+       };
+};
+
+&flexcan1 {
+       status = "okay";
+};
+
+&pcie_phy {
+       clocks = <&clk_pcie>;
+       clock-names = "ref";
+       fsl,refclk-pad-mode = <IMX8_PCIE_REFCLK_PAD_INPUT>;
+       status = "okay";
+};
+
+&pcie {
+       fsl,max-link-speed = <3>;
+       reset-gpio = <&gpio1 6 GPIO_ACTIVE_LOW>;
+       status = "okay";
+};
+
+&usb_dwc3_0 {
+       usb-role-switch;
+
+       port {
+               #address-cells = <1>;
+               #size-cells = <0>;
+
+               dwc3_0_hs_ep: endpoint@0 {
+                       reg = <0>;
+                       remote-endpoint = <&usb_c_0_hs_ep>;
+               };
+
+               dwc3_0_ss_ep: endpoint@1 {
+                       reg = <1>;
+                       remote-endpoint = <&ptn5150_out_ep>;
+               };
+       };
+};
+
+&usb3_1 {
+       fsl,disable-port-power-control;
+       fsl,permanently-attached;
+};
+
+&usb_dwc3_1 {
+       /* This port has USB5734 Hub connected to it, PWR/OC pins are unused */
+       /delete-property/ pinctrl-names;
+       /delete-property/ pinctrl-0;
+};
+
+&iomuxc {
+       /*
+        * GPIO_A,B,C,E are connected to buttons.
+        * GPIO_D,F,G,I are connected to LEDs.
+        * GPIO_H is connected to USB Hub RESET_N.
+        * GPIO_M is connected to CLKOUT2.
+        */
+       pinctrl-0 = <&pinctrl_hog_base
+                    &pinctrl_dhcom_h &pinctrl_dhcom_j &pinctrl_dhcom_k
+                    &pinctrl_dhcom_l
+                    &pinctrl_dhcom_int>;
+
+       pinctrl_ptn5150: ptn5150grp {
+               fsl,pins = <
+                       MX8MP_IOMUXC_SAI2_TXC__GPIO4_IO25               0x40000000
+               >;
+       };
+};