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Message-ID: <ZtQeumbOCfygsbMT@dragon>
Date: Sun, 1 Sep 2024 15:58:50 +0800
From: Shawn Guo <shawnguo2@...h.net>
To: Tarang Raval <tarang.raval@...iconsignals.io>
Cc: shawnguo@...nel.org, krzk+dt@...nel.org, festevam@...il.com,
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: Re: [PATCH v3] arm64: dts: imx8mm-emtop-baseboard: Add Peripherals
Support
On Fri, Aug 23, 2024 at 05:31:57PM +0530, Tarang Raval wrote:
> 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@...iconsignals.io>
> ---
>
> 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.
> ---
> .../dts/freescale/imx8mm-emtop-baseboard.dts | 326 ++++++++++++++++++
> 1 file changed, 326 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..0a7c8acd8f5d 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mm-emtop-baseboard.dts
> +++ b/arch/arm64/boot/dts/freescale/imx8mm-emtop-baseboard.dts
> @@ -11,6 +11,113 @@ / {
> 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 +147,129 @@ vddio: vddio-regulator {
> };
> };
>
> +&i2c3 {
> + clock-frequency = <100000>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_i2c3>;
> + status = "okay";
> +
> + rtc@32 {
> + compatible = "epson,rx8025";
> + reg = <0x32>;
> + };
> +
> + wm8904: audio-codec@1a {
Could you sort I2C device nodes in slave/unit address?
> + 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>;
> + };
> +};
> +
> +/* 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 = <®_wifi_vmmc>;
> + cap-power-off-card;
> + keep-power-in-suspend;
> + non-removable;
> + status = "okay";
> +
> + #address-cells = <1>;
> + #size-cells = <0>;
Could you move these two into the property list above which ends with
'status'?
Shawn
> + 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_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 +289,101 @@ 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
>
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