ARM: dts: meson: add USB support on Meson8 and Meson8b

This adds the DWC2 USB controller nodes and the corresponding USB2 PHY
nodes to meson.dtsi (as the same - or at least a very similar) IP block
is used on all SoCs (at the same physical address).
Additionally meson8.dtsi and meson8b.dtsi add the required clocks to the
DWC2 and USB2 PHY nodes, otherwise the DWC2 controller cannot be
initialized by the dwc2 driver.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>

arch/arm/boot/dts/meson.dtsi

@@ -132,6 +132,20 @@
 				status = "disabled";
 			};
 
+			usb0_phy: phy@8800 {
+				compatible = "amlogic,meson-mx-usb2-phy";
+				#phy-cells = <0>;
+				reg = <0x8800 0x20>;
+				status = "disabled";
+			};
+
+			usb1_phy: phy@8820 {
+				compatible = "amlogic,meson-mx-usb2-phy";
+				#phy-cells = <0>;
+				reg = <0x8820 0x20>;
+				status = "disabled";
+			};
+
 			spifc: spi@8c80 {
 				compatible = "amlogic,meson6-spifc";
 				reg = <0x8c80 0x80>;
@@ -184,6 +198,30 @@
 			};
 		};
 
+		usb0: usb@c9040000 {
+			compatible = "snps,dwc2";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0xc9040000 0x40000>;
+			interrupts = <GIC_SPI 30 IRQ_TYPE_EDGE_RISING>;
+			phys = <&usb0_phy>;
+			phy-names = "usb2-phy";
+			dr_mode = "host";
+			status = "disabled";
+		};
+
+		usb1: usb@c90c0000 {
+			compatible = "snps,dwc2";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0xc90c0000 0x40000>;
+			interrupts = <GIC_SPI 31 IRQ_TYPE_EDGE_RISING>;
+			phys = <&usb1_phy>;
+			phy-names = "usb2-phy";
+			dr_mode = "host";
+			status = "disabled";
+		};
+
 		ethmac: ethernet@c9410000 {
 			compatible = "amlogic,meson6-dwmac", "snps,dwmac";
 			reg = <0xc9410000 0x10000

arch/arm/boot/dts/meson8.dtsi

@@ -292,3 +292,27 @@
 &uart_C {
 	clocks = <&clkc CLKID_CLK81>;
 };
+
+&usb0 {
+	compatible = "amlogic,meson8-usb", "snps,dwc2";
+	clocks = <&clkc CLKID_USB0_DDR_BRIDGE>;
+	clock-names = "otg";
+};
+
+&usb1 {
+	compatible = "amlogic,meson8-usb", "snps,dwc2";
+	clocks = <&clkc CLKID_USB1_DDR_BRIDGE>;
+	clock-names = "otg";
+};
+
+&usb0_phy {
+	compatible = "amlogic,meson8-usb2-phy", "amlogic,meson-mx-usb2-phy";
+	clocks = <&clkc CLKID_USB>, <&clkc CLKID_USB0>;
+	clock-names = "usb_general", "usb";
+};
+
+&usb1_phy {
+	compatible = "amlogic,meson8-usb2-phy", "amlogic,meson-mx-usb2-phy";
+	clocks = <&clkc CLKID_USB>, <&clkc CLKID_USB1>;
+	clock-names = "usb_general", "usb";
+};

arch/arm/boot/dts/meson8b.dtsi

@@ -206,3 +206,29 @@
 &uart_C {
 	clocks = <&clkc CLKID_CLK81>;
 };
+
+&usb0 {
+	compatible = "amlogic,meson8b-usb", "snps,dwc2";
+	clocks = <&clkc CLKID_USB0_DDR_BRIDGE>;
+	clock-names = "otg";
+};
+
+&usb1 {
+	compatible = "amlogic,meson8b-usb", "snps,dwc2";
+	clocks = <&clkc CLKID_USB1_DDR_BRIDGE>;
+	clock-names = "otg";
+};
+
+&usb0_phy {
+	compatible = "amlogic,meson8b-usb2-phy", "amlogic,meson-mx-usb2-phy";
+	clocks = <&clkc CLKID_USB>, <&clkc CLKID_USB0>;
+	clock-names = "usb_general", "usb";
+	resets = <&reset RESET_USB_OTG>;
+};
+
+&usb1_phy {
+	compatible = "amlogic,meson8b-usb2-phy", "amlogic,meson-mx-usb2-phy";
+	clocks = <&clkc CLKID_USB>, <&clkc CLKID_USB1>;
+	clock-names = "usb_general", "usb";
+	resets = <&reset RESET_USB_OTG>;
+};