linux-kernel - [PATCH v2 2/4] arm64: dts: intel: agilex5: Add USB3.1 support for Agilex5 SoCDK

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Message-ID: <6cd24004aa13c44a7ad3277d79156451d7217a8a.1765249127.git.adrianhoyin.ng@altera.com>
Date: Tue,  9 Dec 2025 14:25:09 +0800
From: adrianhoyin.ng@...era.com
To: gregkh@...uxfoundation.org,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	dinguyen@...nel.org,
	Thinh.Nguyen@...opsys.com,
	devicetree@...r.kernel.org,
	linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: adrianhoyin.ng@...era.com
Subject: [PATCH v2 2/4] arm64: dts: intel: agilex5: Add USB3.1 support for Agilex5 SoCDK

From: Adrian Ng Ho Yin <adrianhoyin.ng@...era.com>

Add usb3 node for the USB3.1 controller on the Agilex5 SoC and enable
it on the SoCDK board.

Signed-off-by: Adrian Ng Ho Yin <adrianhoyin.ng@...era.com>
---
 arch/arm64/boot/dts/intel/socfpga_agilex5.dtsi | 18 ++++++++++++++++++
 .../boot/dts/intel/socfpga_agilex5_socdk.dts   |  5 +++++
 2 files changed, 23 insertions(+)

diff --git a/arch/arm64/boot/dts/intel/socfpga_agilex5.dtsi b/arch/arm64/boot/dts/intel/socfpga_agilex5.dtsi
index a5c2025a616e..226e4f0a2439 100644
--- a/arch/arm64/boot/dts/intel/socfpga_agilex5.dtsi
+++ b/arch/arm64/boot/dts/intel/socfpga_agilex5.dtsi
@@ -483,6 +483,24 @@ usb0: usb@...00000 {
 			status = "disabled";
 		};
 
+		usb31: usb1@...00000 {
+			compatible = "altr,agilex5-dwc3";
+			reg = <0x11000000 0x100000>;
+			interrupts = <GIC_SPI 94 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&clkmgr AGILEX5_USB31_SUSPEND_CLK>,
+				 <&clkmgr AGILEX5_USB31_BUS_CLK_EARLY>;
+			clock-names = "suspend_clk", "bus_clk";
+			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@...00200 {
 			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 262bb3e8e5c7..3f5b116120fd 100644
--- a/arch/arm64/boot/dts/intel/socfpga_agilex5_socdk.dts
+++ b/arch/arm64/boot/dts/intel/socfpga_agilex5_socdk.dts
@@ -107,6 +107,11 @@ &usb0 {
 	disable-over-current;
 };
 
+&usb31 {
+	dr_mode = "host";
+	status = "okay";
+};
+
 &watchdog0 {
 	status = "okay";
 };
-- 
2.49.GIT