[PATCH v3 4/6] arm64: dts: intel: agilex5: add USB3.1 controller node

Add a DTS node for the Synopsys DWC3 USB3.1 controller on the Agilex5 SoC.
Place it under a simple-bus with a 40-bit dma-ranges window to match the
USB DMA address width of the interconnect. It is enabled in host mode on
the SoCDK board.

Signed-off-by: Adrian Ng Ho Yin <[email protected]>
---
 .../arm64/boot/dts/intel/socfpga_agilex5.dtsi | 27 +++++++++++++++++++
 .../boot/dts/intel/socfpga_agilex5_socdk.dts  |  5 ++++
 2 files changed, 32 insertions(+)

diff --git a/arch/arm64/boot/dts/intel/socfpga_agilex5.dtsi b/arch/arm64/boot/dts/intel/socfpga_agilex5.dtsi
index b06c6d5d60ee..043b980832c2 100644
--- a/arch/arm64/boot/dts/intel/socfpga_agilex5.dtsi
+++ b/arch/arm64/boot/dts/intel/socfpga_agilex5.dtsi
@@ -494,6 +494,33 @@ usb0: usb@10b00000 {
 			status = "disabled";
 		};
 
+		usb31_bus: usb-bus@11000000 {
+			compatible = "simple-bus";
+			#address-cells = <1>;
+			#size-cells = <2>;
+			ranges = <0x00 0x11000000 0x00 0x100000>;
+			dma-ranges = <0x00 0x00 0x100 0x00>;
+
+			usb31: usb@0 {
+				compatible = "altr,agilex5-dwc3";
+				reg = <0x0 0x0 0x100000>;
+				interrupts = <GIC_SPI 94 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&clkmgr AGILEX5_USB31_REF_CLK>,
+					 <&clkmgr AGILEX5_USB31_SUSPEND_CLK>,
+					 <&clkmgr AGILEX5_USB31_BUS_CLK_EARLY>;
+				clock-names = "ref", "suspend", "bus_early";
+				resets = <&rst USB1_RESET>, <&rst USB1_OCP_RESET>;
+				reset-names = "dwc3", "dwc3-ecc";
+				iommus = <&smmu 7>;
+				phys = <&usbphy0>, <&usbphy0>;
+				phy-names = "usb2-phy", "usb3-phy";
+				maximum-speed = "super-speed";
+				snps,dis_u2_susphy_quirk;
+				snps,dis_u3_susphy_quirk;
+				status = "disabled";
+			};
+		};
+
 		watchdog0: watchdog@10d00200 {
 			compatible = "snps,dw-wdt";
 			reg = <0x10d00200 0x100>;
diff --git a/arch/arm64/boot/dts/intel/socfpga_agilex5_socdk.dts b/arch/arm64/boot/dts/intel/socfpga_agilex5_socdk.dts
index 57d3c5807c65..dc62772e10ed 100644
--- a/arch/arm64/boot/dts/intel/socfpga_agilex5_socdk.dts
+++ b/arch/arm64/boot/dts/intel/socfpga_agilex5_socdk.dts
@@ -109,6 +109,11 @@ &usb0 {
 	disable-over-current;
 };
 
+&usb31 {
+	dr_mode = "host";
+	status = "okay";
+};
+
 &watchdog0 {
 	status = "okay";
 };
-- 
2.49.GIT