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Commit 458baa95 authored by Martin Blumenstingl's avatar Martin Blumenstingl Committed by Kevin Hilman
Browse files

ARM64: dts: meson-gxm: add GXM specific USB host configuration 



The USB configuration on GXM is slightly different than on GXL. The dwc3
controller's internal hub has three USB2 ports (instead of 2 on GXL)
along with a dedicated USB2 PHY for this port. However, it seems that
there are no pins on GXM which would allow connecting the third port to
a physical USB port.
Passing the third PHY is required though, because without it none of the
other USB ports is working (this seems to be a limitation of how the
internal USB hub works, if one PHY is disabled then no USB port works).

Signed-off-by: default avatarMartin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: default avatarKevin Hilman <khilman@baylibre.com>
parent 8aec5fc1

arch/arm64/boot/dts/amlogic/meson-gxm.dtsi

+17 −0
Original line number Diff line number Diff line
@@ -80,6 +80,19 @@ 
	};

};



&apb {

	usb2_phy2: phy@78040 {

		compatible = "amlogic,meson-gxl-usb2-phy";

		#phy-cells = <0>;

		reg = <0x0 0x78040 0x0 0x20>;

		clocks = <&clkc CLKID_USB>;

		clock-names = "phy";

		resets = <&reset RESET_USB_OTG>;

		reset-names = "phy";

		status = "okay";

	};

};



&clkc_AO {

	compatible = "amlogic,meson-gxm-aoclkc", "amlogic,meson-gx-aoclkc";

};
@@ -100,3 +113,7 @@ 
&hdmi_tx {

	compatible = "amlogic,meson-gxm-dw-hdmi", "amlogic,meson-gx-dw-hdmi";

};



&dwc3 {

	phys = <&usb3_phy>, <&usb2_phy0>, <&usb2_phy1>, <&usb2_phy2>;

};