[PATCH v3 2/2] arm64: dts: imx8mp: Add support for DH electronics i.MX8M Plus DHCOM and PDK3
Marek Vasut
marex at denx.de
Fri Mar 17 02:47:25 PDT 2023
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 at denx.de>
---
Cc: Fabio Estevam <festevam at gmail.com>
Cc: Frieder Schrempf <frieder.schrempf at kontron.de>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski+dt at linaro.org>
Cc: Li Yang <leoyang.li at nxp.com>
Cc: Marcel Ziswiler <marcel.ziswiler at toradex.com>
Cc: Marek Vasut <marex at denx.de>
Cc: Matthias Schiffer <matthias.schiffer at tq-group.com>
Cc: Max Krummenacher <max.krummenacher at toradex.com>
Cc: NXP Linux Team <linux-imx at nxp.com>
Cc: Pengutronix Kernel Team <kernel at pengutronix.de>
Cc: Rob Herring <robh+dt at kernel.org>
Cc: Sascha Hauer <s.hauer at pengutronix.de>
Cc: Shawn Guo <shawnguo at kernel.org>
Cc: Stefan Wahren <stefan.wahren at i2se.com>
Cc: devicetree at vger.kernel.org
Cc: linux-arm-kernel at lists.infradead.org
---
V2: - Rename clk-xtal25 node name to clock-xtal25
- Rename i2cmux@ to i2c-mux@
- Rename clk at 6b node to clock at 6b
- Drop so far unused clock-codec
- Drop status = "okay" from typec at 3d and ethernet-phy at 7 nodes
V3: - Switch PCIe to fixed-clock source until Si521xx driver lands,
this is OK since the Si521xx is always on anyway and the I2C
interface is only used to tune it if necessary, which it is
not on this board.
---
arch/arm64/boot/dts/freescale/Makefile | 1 +
.../boot/dts/freescale/imx8mp-dhcom-pdk3.dts | 306 ++++++++++++++++++
2 files changed, 307 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 836dcc501e6f8..00af4f0ea31e0 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..b5e76b992a103
--- /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 at 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 at 0 {
+ reg = <0>;
+
+ usb_c_0_hs_ep: endpoint {
+ remote-endpoint = <&dwc3_0_hs_ep>;
+ };
+ };
+
+ port at 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 at 70 {
+ compatible = "nxp,pca9540";
+ reg = <0x70>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ i2cmuxed0: i2c at 0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+
+ typec at 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 at 0 {
+ reg = <0>;
+
+ ptn5150_in_ep: endpoint {
+ remote-endpoint = <&usb_c_0_ss_ep>;
+ };
+ };
+
+ port at 1 {
+ reg = <1>;
+
+ ptn5150_out_ep: endpoint {
+ remote-endpoint = <&dwc3_0_ss_ep>;
+ };
+ };
+ };
+ };
+
+ power-sensor at 40 {
+ compatible = "ti,ina238";
+ reg = <0x40>;
+ shunt-resistor = <20000>; /* 0.02 R */
+ ti,shunt-gain = <1>; /* Drop cca. 40mV */
+ };
+
+ eeprom_board: eeprom at 54 {
+ compatible = "atmel,24c04";
+ pagesize = <16>;
+ reg = <0x54>;
+ };
+ };
+
+ i2cmuxed1: i2c at 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 at 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 at 0 {
+ reg = <0>;
+ remote-endpoint = <&usb_c_0_hs_ep>;
+ };
+
+ dwc3_0_ss_ep: endpoint at 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
+ >;
+ };
+};
--
2.39.2
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