[PATCH v5] arm64: dts: imx8mm-emtop-baseboard: Add Peripherals Support

From: Tarang Raval
Date: Tue Sep 03 2024 - 05:18:37 EST

Add following peripherals support for the Emtop i.MX8M Mini Baseboard

* Wi-Fi
* Audio
* SD card
* RTC
* CAN bus
* USB OTG

Signed-off-by: Tarang Raval <tarang.raval@xxxxxxxxxxxxxxxxx>
---

Changes in v2:

1. Updated the node name and pinctrl name.
2. Removed the 'regulators' container.
3. Removed a stray blank line.
4. Removed non-existent properties.
5. Removed unused node and pinctrl:
-modem-reset
-pinctrl_uart1
6. Defined the CAN transceiver reset GPIO separately.

Change in v3:

1. Removed 'can-connector'.
2. Use USB connector instead of extcon_usb.
3. Changed id-gpio to id-gpios.
4. Use Level trigger IRQ in the CAN node.
5. Corrected the compatible property of RTC.
6. Added blank lines to separate the pinctrl groups.

Changes in v4:

1. Sorted I2C device nodes by slave address.
2. Moved properties above the "status" property in the Wi-Fi node.

Change in v5:

1. I mistakenly removed <pinctrl-canbus>; it has now been re-added.
2. Added Author name
---
.../dts/freescale/imx8mm-emtop-baseboard.dts | 335 ++++++++++++++++++
1 file changed, 335 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-emtop-baseboard.dts b/arch/arm64/boot/dts/freescale/imx8mm-emtop-baseboard.dts
index 7d2cb74c64ee..90e638b8e92a 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-emtop-baseboard.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mm-emtop-baseboard.dts
@@ -1,6 +1,9 @@
// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
* Copyright 2023 Emtop Embedded Solutions
+ *
+ * Author: Himanshu Bhavani <himanshu.bhavani@xxxxxxxxxxxxxxxxx>
+ * Author: Tarang Raval <tarang.raval@xxxxxxxxxxxxxxxxx>
*/

/dts-v1/;
@@ -11,6 +14,113 @@ / {
model = "Emtop Embedded Solutions i.MX8M Mini Baseboard V1";
compatible = "ees,imx8mm-emtop-baseboard", "ees,imx8mm-emtop-som",
"fsl,imx8mm";
+
+ connector {
+ compatible = "usb-c-connector";
+ label = "USB-C";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_usb_otg>;
+ id-gpios = <&gpio1 10 GPIO_ACTIVE_HIGH>;
+
+ port {
+ high_speed_ep: endpoint {
+ remote-endpoint = <&usb_hs_ep>;
+ };
+ };
+ };
+
+ leds {
+ compatible = "gpio-leds";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_gpio_led>;
+
+ led-1 {
+ label = "buzzer";
+ gpios = <&gpio4 29 GPIO_ACTIVE_HIGH>;
+ default-state = "off";
+ };
+ };
+
+ osc_can: clock-osc-can {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <16000000>;
+ clock-output-names = "osc-can";
+ };
+
+ reg_audio: regulator-audio {
+ compatible = "regulator-fixed";
+ regulator-name = "wm8904_supply";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ };
+
+ reg_wifi_vmmc: regulator-wifi-vmmc {
+ compatible = "regulator-fixed";
+ regulator-name = "vmmc";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ gpio = <&gpio2 10 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ startup-delay-us = <100>;
+ off-on-delay-us = <20000>;
+ };
+
+ sound-wm8904 {
+ compatible = "simple-audio-card";
+ simple-audio-card,bitclock-master = <&dailink_master>;
+ simple-audio-card,format = "i2s";
+ simple-audio-card,frame-master = <&dailink_master>;
+ simple-audio-card,name = "wm8904-audio";
+ simple-audio-card,mclk-fs = <256>;
+ simple-audio-card,routing =
+ "Headphone Jack", "HPOUTL",
+ "Headphone Jack", "HPOUTR",
+ "IN2L", "Line In Jack",
+ "IN2R", "Line In Jack",
+ "Headphone Jack", "MICBIAS",
+ "IN1L", "Headphone Jack";
+
+ simple-audio-card,widgets =
+ "Microphone","Headphone Jack",
+ "Headphone", "Headphone Jack",
+ "Line", "Line In Jack";
+
+ dailink_master: simple-audio-card,codec {
+ sound-dai = <&wm8904>;
+ };
+
+ simple-audio-card,cpu {
+ sound-dai = <&sai3>;
+ };
+ };
+
+ sound-spdif {
+ compatible = "fsl,imx-audio-spdif";
+ model = "imx-spdif";
+ spdif-controller = <&spdif1>;
+ spdif-out;
+ spdif-in;
+ };
+};
+
+/* CAN BUS */
+&ecspi2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_ecspi2>;
+ status = "okay";
+
+ can: can@0 {
+ compatible = "microchip,mcp2515";
+ reg = <0>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_canbus>;
+ clocks = <&osc_can>;
+ interrupt-parent = <&gpio1>;
+ interrupts = <14 IRQ_TYPE_LEVEL_HIGH>;
+ spi-max-frequency = <10000000>;
+ };
};

&fec1 {
@@ -40,7 +150,135 @@ vddio: vddio-regulator {
};
};

+&i2c3 {
+ clock-frequency = <100000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c3>;
+ status = "okay";
+
+ wm8904: audio-codec@1a {
+ compatible = "wlf,wm8904";
+ reg = <0x1a>;
+ #sound-dai-cells = <0>;
+ clocks = <&clk IMX8MM_CLK_SAI3_ROOT>;
+ clock-names = "mclk";
+ DCVDD-supply = <&reg_audio>;
+ DBVDD-supply = <&reg_audio>;
+ AVDD-supply = <&reg_audio>;
+ CPVDD-supply = <&reg_audio>;
+ MICVDD-supply = <&reg_audio>;
+ };
+
+ rtc@32 {
+ compatible = "epson,rx8025";
+ reg = <0x32>;
+ };
+};
+
+/* AUDIO */
+&sai3 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_sai3>;
+ assigned-clocks = <&clk IMX8MM_CLK_SAI3>;
+ assigned-clock-parents = <&clk IMX8MM_AUDIO_PLL1_OUT>;
+ assigned-clock-rates = <24576000>;
+ status = "okay";
+};
+
+&spdif1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_spdif1>;
+ assigned-clocks = <&clk IMX8MM_CLK_SPDIF1>;
+ assigned-clock-parents = <&clk IMX8MM_AUDIO_PLL1_OUT>;
+ assigned-clock-rates = <24576000>;
+ clocks = <&clk IMX8MM_CLK_AUDIO_AHB>, <&clk IMX8MM_CLK_24M>,
+ <&clk IMX8MM_CLK_SPDIF1>, <&clk IMX8MM_CLK_DUMMY>,
+ <&clk IMX8MM_CLK_DUMMY>, <&clk IMX8MM_CLK_DUMMY>,
+ <&clk IMX8MM_CLK_AUDIO_AHB>, <&clk IMX8MM_CLK_DUMMY>,
+ <&clk IMX8MM_CLK_DUMMY>, <&clk IMX8MM_CLK_DUMMY>,
+ <&clk IMX8MM_AUDIO_PLL1_OUT>, <&clk IMX8MM_AUDIO_PLL2_OUT>;
+ clock-names = "core", "rxtx0", "rxtx1", "rxtx2", "rxtx3",
+ "rxtx4", "rxtx5", "rxtx6", "rxtx7", "spba", "pll8k", "pll11k";
+ status = "okay";
+};
+
+/* USBOTG */
+&usbotg1 {
+ dr_mode = "otg";
+ usb-role-switch;
+ status = "okay";
+
+ port {
+ usb_hs_ep: endpoint {
+ remote-endpoint = <&high_speed_ep>;
+ };
+ };
+};
+
+&usbotg2 {
+ dr_mode = "host";
+ status = "okay";
+};
+
+/* Wifi */
+&usdhc1 {
+ pinctrl-names = "default", "state_100mhz", "state_200mhz";
+ pinctrl-0 = <&pinctrl_usdhc1>, <&pinctrl_usdhc1_gpio>;
+ pinctrl-1 = <&pinctrl_usdhc1_100mhz>, <&pinctrl_usdhc1_gpio>;
+ pinctrl-2 = <&pinctrl_usdhc1_200mhz>, <&pinctrl_usdhc1_gpio>;
+ bus-width = <4>;
+ vmmc-supply = <&reg_wifi_vmmc>;
+ cap-power-off-card;
+ keep-power-in-suspend;
+ non-removable;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "okay";
+
+ wifi: wifi@1 {
+ compatible = "brcm,bcm4329-fmac";
+ reg = <1>;
+ interrupt-parent = <&gpio2>;
+ interrupts = <9 IRQ_TYPE_LEVEL_LOW>;
+ interrupt-names = "host-wake";
+ };
+};
+
+/* SD-card */
+&usdhc2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_usdhc2>;
+ pinctrl-1 = <&pinctrl_usdhc2_100mhz>;
+ pinctrl-2 = <&pinctrl_usdhc2_200mhz>;
+ cd-gpios = <&gpio2 12 GPIO_ACTIVE_LOW>;
+ bus-width = <4>;
+ status = "okay";
+};
+
&iomuxc {
+
+ pinctrl_canbus: canbusgrp {
+ fsl,pins = <
+ MX8MM_IOMUXC_GPIO1_IO14_GPIO1_IO14 0x14
+ >;
+ };
+
+ pinctrl_ecspi2: ecspi2grp {
+ fsl,pins = <
+ MX8MM_IOMUXC_ECSPI2_SS0_ECSPI2_SS0 0x82
+ MX8MM_IOMUXC_ECSPI2_MOSI_ECSPI2_MOSI 0x82
+ MX8MM_IOMUXC_ECSPI2_MISO_ECSPI2_MISO 0x82
+ MX8MM_IOMUXC_ECSPI2_SCLK_ECSPI2_SCLK 0x82
+ >;
+ };
+
+ pinctrl_usb_otg: usbotggrp {
+ fsl,pins = <
+ MX8MM_IOMUXC_GPIO1_IO10_GPIO1_IO10 0x140 /* otg_id */
+ MX8MM_IOMUXC_GPIO1_IO12_GPIO1_IO12 0x19 /* otg_vbus */
+ >;
+ };
+
pinctrl_fec1: fec1grp {
fsl,pins = <
MX8MM_IOMUXC_ENET_MDC_ENET1_MDC 0x3
@@ -60,4 +298,101 @@ MX8MM_IOMUXC_ENET_TX_CTL_ENET1_RGMII_TX_CTL 0x1f
MX8MM_IOMUXC_SAI2_RXC_GPIO4_IO22 0x19
>;
};
+
+ pinctrl_i2c3: i2c3grp {
+ fsl,pins = <
+ MX8MM_IOMUXC_I2C3_SCL_I2C3_SCL 0x400001c3
+ MX8MM_IOMUXC_I2C3_SDA_I2C3_SDA 0x400001c3
+ >;
+ };
+
+ pinctrl_sai3: sai3grp {
+ fsl,pins = <
+ MX8MM_IOMUXC_SAI3_TXFS_SAI3_TX_SYNC 0xd6
+ MX8MM_IOMUXC_SAI3_TXC_SAI3_TX_BCLK 0xd6
+ MX8MM_IOMUXC_SAI3_MCLK_SAI3_MCLK 0xd6
+ MX8MM_IOMUXC_SAI3_TXD_SAI3_TX_DATA0 0xd6
+ MX8MM_IOMUXC_SAI3_RXD_SAI3_RX_DATA0 0xd6
+ >;
+ };
+
+ pinctrl_spdif1: spdif1grp {
+ fsl,pins = <
+ MX8MM_IOMUXC_SPDIF_TX_SPDIF1_OUT 0xd6
+ >;
+ };
+
+ pinctrl_usdhc1: usdhc1grp {
+ fsl,pins = <
+ MX8MM_IOMUXC_SD1_CLK_USDHC1_CLK 0x190
+ MX8MM_IOMUXC_SD1_CMD_USDHC1_CMD 0x1d0
+ MX8MM_IOMUXC_SD1_DATA0_USDHC1_DATA0 0x1d0
+ MX8MM_IOMUXC_SD1_DATA1_USDHC1_DATA1 0x1d0
+ MX8MM_IOMUXC_SD1_DATA2_USDHC1_DATA2 0x1d0
+ MX8MM_IOMUXC_SD1_DATA3_USDHC1_DATA3 0x1d0
+ >;
+ };
+
+ pinctrl_usdhc1_100mhz: usdhc1-100mhzgrp{
+ fsl,pins = <
+ MX8MM_IOMUXC_SD1_CLK_USDHC1_CLK 0x194
+ MX8MM_IOMUXC_SD1_CMD_USDHC1_CMD 0x1d4
+ MX8MM_IOMUXC_SD1_DATA0_USDHC1_DATA0 0x1d4
+ MX8MM_IOMUXC_SD1_DATA1_USDHC1_DATA1 0x1d4
+ MX8MM_IOMUXC_SD1_DATA2_USDHC1_DATA2 0x1d4
+ MX8MM_IOMUXC_SD1_DATA3_USDHC1_DATA3 0x1d4
+ >;
+ };
+
+ pinctrl_usdhc1_200mhz: usdhc1-200mhzgrp {
+ fsl,pins = <
+ MX8MM_IOMUXC_SD1_CLK_USDHC1_CLK 0x196
+ MX8MM_IOMUXC_SD1_CMD_USDHC1_CMD 0x1d6
+ MX8MM_IOMUXC_SD1_DATA0_USDHC1_DATA0 0x1d6
+ MX8MM_IOMUXC_SD1_DATA1_USDHC1_DATA1 0x1d6
+ MX8MM_IOMUXC_SD1_DATA2_USDHC1_DATA2 0x1d6
+ MX8MM_IOMUXC_SD1_DATA3_USDHC1_DATA3 0x1d6
+ >;
+ };
+
+ pinctrl_usdhc1_gpio: usdhc1-gpiogrp {
+ fsl,pins = <
+ MX8MM_IOMUXC_SD1_RESET_B_GPIO2_IO10 0x41 /* wl_reg_on */
+ MX8MM_IOMUXC_SD1_DATA7_GPIO2_IO9 0x41 /* wl_host_wake */
+ MX8MM_IOMUXC_GPIO1_IO00_ANAMIX_REF_CLK_32K 0x141 /* LP0: 32KHz */
+ >;
+ };
+
+ pinctrl_usdhc2: usdhc2grp {
+ fsl,pins = <
+ MX8MM_IOMUXC_SD2_CLK_USDHC2_CLK 0x190
+ MX8MM_IOMUXC_SD2_CMD_USDHC2_CMD 0x1d0
+ MX8MM_IOMUXC_SD2_DATA0_USDHC2_DATA0 0x1d0
+ MX8MM_IOMUXC_SD2_DATA1_USDHC2_DATA1 0x1d0
+ MX8MM_IOMUXC_SD2_DATA2_USDHC2_DATA2 0x1d0
+ MX8MM_IOMUXC_SD2_DATA3_USDHC2_DATA3 0x1d0
+ >;
+ };
+
+ pinctrl_usdhc2_100mhz: usdhc2-100mhzgrp {
+ fsl,pins = <
+ MX8MM_IOMUXC_SD2_CLK_USDHC2_CLK 0x194
+ MX8MM_IOMUXC_SD2_CMD_USDHC2_CMD 0x1d4
+ MX8MM_IOMUXC_SD2_DATA0_USDHC2_DATA0 0x1d4
+ MX8MM_IOMUXC_SD2_DATA1_USDHC2_DATA1 0x1d4
+ MX8MM_IOMUXC_SD2_DATA2_USDHC2_DATA2 0x1d4
+ MX8MM_IOMUXC_SD2_DATA3_USDHC2_DATA3 0x1d4
+ >;
+ };
+
+ pinctrl_usdhc2_200mhz: usdhc2-200mhzgrp {
+ fsl,pins = <
+ MX8MM_IOMUXC_SD2_CLK_USDHC2_CLK 0x196
+ MX8MM_IOMUXC_SD2_CMD_USDHC2_CMD 0x1d6
+ MX8MM_IOMUXC_SD2_DATA0_USDHC2_DATA0 0x1d6
+ MX8MM_IOMUXC_SD2_DATA1_USDHC2_DATA1 0x1d6
+ MX8MM_IOMUXC_SD2_DATA2_USDHC2_DATA2 0x1d6
+ MX8MM_IOMUXC_SD2_DATA3_USDHC2_DATA3 0x1d6
+ >;
+ };
};
--
2.34.1