Commit 556d6be6 authored by Mathew McBride's avatar Mathew McBride Committed by Shawn Guo
Browse files

arm64: dts: freescale: ten64: add usb hub definition 



A device tree binding for the Microchip USB5744 hub controller
was added in commit 02be19e9 ("dt-bindings: usb: Add support
for Microchip usb5744 hub controller").

U-Boot will consume this binding in order to perform the
necessary actions to enable the USB hub ports over I2C.
(We previously used our own out-of-tree driver for
this task)

The Ten64 board does not have any switchable supplies
for the voltage rails utilized by the USB5744, so a
pair of dummy supplies have been added to facilitate
operation with U-Boot's hub driver.

Signed-off-by: default avatarMathew McBride <matt@traverse.com.au>
Signed-off-by: default avatarShawn Guo <shawnguo@kernel.org>
parent 9e87325a

arch/arm64/boot/dts/freescale/fsl-ls1088a-ten64.dts

+44 −0
Original line number Diff line number Diff line
@@ -87,6 +87,22 @@ sfp_xg1: dpmac1-sfp { 
		los-gpios = <&sfpgpio 7 GPIO_ACTIVE_HIGH>;

		maximum-power-milliwatt = <2000>;

	};



	usb1v2_supply: regulator-usbhub-1v2 {

		compatible = "regulator-fixed";

		regulator-name = "usbhub_1v2";

		regulator-min-microvolt = <1200000>;

		regulator-max-microvolt = <1200000>;

		regulator-always-on;

	};



	system3v3_supply: regulator-system-3v3 {

		compatible = "regulator-fixed";

		regulator-name = "system_3v3";

		regulator-min-microvolt = <3300000>;

		regulator-max-microvolt = <3300000>;

		regulator-always-on;

	};

};



/* XG1 - Upper SFP */
@@ -231,6 +247,12 @@ at97sc: tpm@29 { 
		compatible = "atmel,at97sc3204t";

		reg = <0x29>;

	};



	usbhub: usb-hub@2d {

		compatible = "microchip,usb5744";

		reg = <0x2d>;

	};



};



&i2c2 {
@@ -378,10 +400,32 @@ partition@9400000 { 
	};

};



/* LS1088A USB Port 0 - direct to bottom USB-A port */

&usb0 {

	status = "okay";

};



/* LS1088A USB Port 1 - to Microchip USB5744 USB Hub */

&usb1 {

	#address-cells = <1>;

	#size-cells = <0>;

	status = "okay";



	hub_2_0: hub@1 {

		compatible = "usb424,2744";

		reg = <1>;

		peer-hub = <&hub_3_0>;

		i2c-bus = <&usbhub>;

		vdd-supply = <&system3v3_supply>;

		vdd2-supply = <&usb1v2_supply>;

	};



	hub_3_0: hub@2 {

		compatible = "usb424,5744";

		reg = <2>;

		peer-hub = <&hub_2_0>;

		i2c-bus = <&usbhub>;

		vdd-supply = <&system3v3_supply>;

		vdd2-supply = <&usb1v2_supply>;

	};

};