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Message-Id: <20240814144957.93183-1-tarang.raval@siliconsignals.io>
Date: Wed, 14 Aug 2024 20:19:56 +0530
From: Tarang Raval <tarang.raval@...iconsignals.io>
To: shawnguo@...nel.org,
krzk+dt@...nel.org,
festevam@...il.com
Cc: tarang.raval@...iconsignals.io,
Rob Herring <robh@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Sascha Hauer <s.hauer@...gutronix.de>,
Pengutronix Kernel Team <kernel@...gutronix.de>,
devicetree@...r.kernel.org,
imx@...ts.linux.dev,
linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org
Subject: [PATCH] arm64: dts: imx8mm-emtop-baseboard: Add Peripherals Support
This adds the 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@...iconsignals.io>
---
.../dts/freescale/imx8mm-emtop-baseboard.dts | 347 ++++++++++++++++++
.../boot/dts/freescale/imx8mm-emtop-som.dtsi | 1 +
2 files changed, 348 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..5ce8f21a0b1b 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-emtop-baseboard.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mm-emtop-baseboard.dts
@@ -11,6 +11,129 @@ / {
model = "Emtop Embedded Solutions i.MX8M Mini Baseboard V1";
compatible = "ees,imx8mm-emtop-baseboard", "ees,imx8mm-emtop-som",
"fsl,imx8mm";
+
+ extcon_usb: extcon_usb1otg {
+ compatible = "linux,extcon-usb-gpio";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_extcon_usb>;
+ id-gpio = <&gpio1 10 GPIO_ACTIVE_HIGH>;
+ enable-gpio = <&gpio1 12 GPIO_ACTIVE_LOW>;
+ };
+
+ modem_reset: modem-reset {
+ compatible = "gpio-reset";
+ reset-gpios = <&gpio2 6 GPIO_ACTIVE_LOW>;
+ reset-delay-us = <2000>;
+ reset-post-delay-ms = <40>;
+ #reset-cells = <0>;
+ };
+
+ leds {
+ compatible = "gpio-leds";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_gpio_led>;
+
+ beep {
+ label = "beep";
+ gpios = <&gpio4 29 GPIO_ACTIVE_HIGH>;
+ default-state = "off";
+ };
+
+ canbus_reset {
+ label = "canbus_reset";
+ gpios = <&gpio1 15 GPIO_ACTIVE_HIGH>;
+ default-state = "on";
+ };
+ };
+
+ osc_can: clock-osc-can {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <16000000>;
+ clock-output-names = "osc-can";
+ };
+
+ regulators {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ reg_audio: regulator-audio-vdd {
+ compatible = "regulator-fixed";
+ regulator-name = "wm8904_supply";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ };
+
+ reg_wifi_vmmc: regulator@1 {
+ compatible = "regulator-fixed";
+ regulator-name = "vmmc";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ gpio = <&gpio2 10 GPIO_ACTIVE_HIGH>;
+ off-on-delay = <20000>;
+ startup-delay-us = <100>;
+ enable-active-high;
+ };
+ };
+
+ 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";
+
+ canbus: mcp2515@0 {
+ compatible = "microchip,mcp2515";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_canbus>;
+ reg = <0>;
+ clocks = <&osc_can>;
+ interrupt-parent = <&gpio1>;
+ interrupts = <14 IRQ_TYPE_EDGE_FALLING>;
+ spi-max-frequency = <10000000>;
+ status = "okay";
+ };
};
&fec1 {
@@ -40,7 +163,130 @@ vddio: vddio-regulator {
};
};
+&i2c3 {
+ clock-frequency = <100000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c3>;
+ status = "okay";
+
+ rx8025: rtc@32 {
+ compatible = "rx8025";
+ reg = <0x32>;
+ };
+
+ wm8904: wm8904@1a {
+ compatible = "wlf,wm8904";
+ reg = <0x1a>;
+ #sound-dai-cells = <0>;
+ clocks = <&clk IMX8MM_CLK_SAI3_ROOT>;
+ clock-names = "mclk";
+ DCVDD-supply = <®_audio>;
+ DBVDD-supply = <®_audio>;
+ AVDD-supply = <®_audio>;
+ CPVDD-supply = <®_audio>;
+ MICVDD-supply = <®_audio>;
+ status = "okay";
+ };
+};
+
+/* 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";
+};
+
+/* 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 = <®_wifi_vmmc>;
+ pm-ignore-notify;
+ cap-power-off-card;
+ keep-power-in-suspend;
+ non-removable;
+ status = "okay";
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+ brcmf: brcmf@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"; /* "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>;
+ bus-width = <4>;
+ status = "okay";
+};
+
+/* USBOTG */
+&usbotg1 {
+ dr_mode = "otg";
+ extcon = <&extcon_usb>;
+ picophy,pre-emp-curr-control = <3>;
+ picophy,dc-vol-level-adjust = <7>;
+ status = "okay";
+};
+
+&usbotg2 {
+ dr_mode = "host";
+ status = "okay";
+};
+
&iomuxc {
+
+ pinctrl_canbus: canbusgrp {
+ fsl,pins = <
+ MX8MM_IOMUXC_GPIO1_IO14_GPIO1_IO14 0x14
+ >;
+ };
+ pinctrl_extcon_usb: extconusbgrp {
+ fsl,pins = <
+ MX8MM_IOMUXC_GPIO1_IO10_GPIO1_IO10 0x140 /* otg_id */
+ MX8MM_IOMUXC_GPIO1_IO12_GPIO1_IO12 0x19 /* otg_vbus */
+ >;
+ };
+ 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_fec1: fec1grp {
fsl,pins = <
MX8MM_IOMUXC_ENET_MDC_ENET1_MDC 0x3
@@ -60,4 +306,105 @@ 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_uart1: uart1grp {
+ fsl,pins = <
+ MX8MM_IOMUXC_UART1_RXD_UART1_DCE_RX 0x140
+ MX8MM_IOMUXC_UART1_TXD_UART1_DCE_TX 0x140
+ MX8MM_IOMUXC_UART3_RXD_UART1_DCE_CTS_B 0x140
+ MX8MM_IOMUXC_UART3_TXD_UART1_DCE_RTS_B 0x140
+ MX8MM_IOMUXC_SD1_DATA4_GPIO2_IO6 0x19
+ >;
+ };
+ 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: usdhc1grp100mhz {
+ 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: usdhc1grp200mhz {
+ 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: usdhc1grpgpio {
+ 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: usdhc2grp100mhz {
+ 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: usdhc2grp200mhz {
+ 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
+ >;
+ };
+ pinctrl_usdhc2_gpio: usdhc2grpgpio {
+ fsl,pins = <
+ MX8MM_IOMUXC_SD2_CD_B_GPIO2_IO12 0x1c4
+ >;
+ };
};
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-emtop-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-emtop-som.dtsi
index 67d22d3768aa..9b188075921c 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-emtop-som.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-emtop-som.dtsi
@@ -182,6 +182,7 @@ pinctrl_gpio_led: emtop-gpio-led-grp {
fsl,pins = <
MX8MM_IOMUXC_NAND_READY_B_GPIO3_IO16 0x19
MX8MM_IOMUXC_SAI3_RXC_GPIO4_IO29 0x19
+ MX8MM_IOMUXC_GPIO1_IO15_GPIO1_IO15 0x19 /* canbus_reset */
>;
};
--
2.34.1
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