Commit 0253e1cb authored by Lucas Stach's avatar Lucas Stach Committed by Shawn Guo
Browse files

arm64: dts: imx8mp-debix: add USB host support 



This adds support for the 4 USB3 host ports on the board, which are
connected to the i.MX8MP SoC via a Realtek RTS5411 hub.

As the schematic for the board is not available, I could not validate
that this really reflects the reality, but I modeled things after the
hacked in usage of the GPIOs in the downstream kernel.

Signed-off-by: default avatarLucas Stach <l.stach@pengutronix.de>
Signed-off-by: default avatarShawn Guo <shawnguo@kernel.org>
parent 09220adf

arch/arm64/boot/dts/freescale/imx8mp-debix-model-a.dts

+59 −0
Original line number Diff line number Diff line
@@ -43,6 +43,17 @@ 
		gpio = <&gpio2 19 GPIO_ACTIVE_HIGH>;

		enable-active-high;

	};



	reg_usb_hub: regulator-usb-hub {

		compatible = "regulator-fixed";

		pinctrl-names = "default";

		pinctrl-0 = <&pinctrl_reg_usb_hub>;

		regulator-name = "USB_HUB";

		regulator-min-microvolt = <5000000>;

		regulator-max-microvolt = <5000000>;

		gpio = <&gpio4 26 GPIO_ACTIVE_HIGH>;

		enable-active-high;

	};

};



&A53_0 {
@@ -254,6 +265,41 @@ 
	status = "okay";

};



&usb3_phy1 {

	status = "okay";

};



&usb3_1 {

	status = "okay";

};



&usb_dwc3_1 {

	#address-cells = <1>;

	#size-cells = <0>;

	pinctrl-names = "default";

	pinctrl-0 = <&pinctrl_usb1>;

	dr_mode = "host";

	status = "okay";



	/* 2.x hub on port 1 */

	usb_hub_2_x: hub@1 {

		compatible = "usbbda,5411";

		reg = <1>;

		reset-gpios = <&gpio4 25 GPIO_ACTIVE_LOW>;

		vdd-supply = <&reg_usb_hub>;

		peer-hub = <&usb_hub_3_x>;

	};



	/* 3.x hub on port 2 */

	usb_hub_3_x: hub@2 {

		compatible = "usbbda,411";

		reg = <2>;

		reset-gpios = <&gpio4 25 GPIO_ACTIVE_LOW>;

		vdd-supply = <&reg_usb_hub>;

		peer-hub = <&usb_hub_2_x>;

	};

};



/* SD Card */

&usdhc2 {

	pinctrl-names = "default", "state_100mhz", "state_200mhz";
@@ -384,6 +430,12 @@ 
		>;

	};



	pinctrl_reg_usb_hub: regusbhubgrp {

		fsl,pins = <

			MX8MP_IOMUXC_SAI2_TXD0__GPIO4_IO26				0x19

		>;

	};



	pinctrl_rtc_int: rtcintgrp {

		fsl,pins = <

			MX8MP_IOMUXC_SD1_STROBE__GPIO2_IO11				0x140
@@ -411,6 +463,13 @@ 
		>;

	};



	pinctrl_usb1: usb1grp {

		fsl,pins = <

			MX8MP_IOMUXC_GPIO1_IO14__USB2_OTG_PWR				0x10

			MX8MP_IOMUXC_SAI2_TXC__GPIO4_IO25				0x19

		>;

	};



	pinctrl_usdhc2: usdhc2grp {

		fsl,pins = <

			MX8MP_IOMUXC_SD2_CLK__USDHC2_CLK				0x190