Subject: [PATCH v4 1/5] arm64: dts: rockchip: Add USB nodes for RK3528

From: Heiko Stuebner <[email-masked]>
Date: Fri, 29 May 2026 21:03:51 +0200

From: Jonas Karlman <[email-masked]>

Rockchip RK3528 has one USB 3.0 DWC3 controller and oneUSB 2.0 EHCI/OHCI
controller and uses an Innosilicon-USB2PHY for USB 2.0. The DWC3
controller additionally uses the Naneng Combo PHY for USB3.

Add device tree nodes to describe these USB controllers along with the
USB 2.0 PHYs.

Signed-off-by: Jonas Karlman <[email-masked]>
[moved snps,dis_u2_susphy_quirk here from individual boards,
 describe both usb2+3 default phy connections, usb2 boards can override]
Signed-off-by: Heiko Stuebner <[email-masked]>
---
 arch/arm64/boot/dts/rockchip/rk3528.dtsi | 80 ++++++++++++++++++++++++
 1 file changed, 80 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3528.dtsi b/arch/arm64/boot/dts/rockchip/rk3528.dtsi
index 77d314716b43..03cd00f88dbb 100644
--- a/arch/arm64/boot/dts/rockchip/rk3528.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3528.dtsi
@@ -336,6 +336,33 @@ pcie_intc: legacy-interrupt-controller {
 			};
 		};
 
+		usb_host0_xhci: usb@fe500000 {
+			compatible = "rockchip,rk3528-dwc3", "snps,dwc3";
+			reg = <0x0 0xfe500000 0x0 0x400000>;
+			clocks = <&cru CLK_REF_USB3OTG>,
+				 <&cru CLK_SUSPEND_USB3OTG>,
+				 <&cru ACLK_USB3OTG>;
+			clock-names = "ref_clk", "suspend_clk", "bus_clk";
+			interrupts = <GIC_SPI 152 IRQ_TYPE_LEVEL_HIGH>;
+			power-domains = <&power RK3528_PD_VPU>;
+			resets = <&cru SRST_A_USB3OTG>;
+			dr_mode = "otg";
+			phys = <&usb2phy_otg>, <&combphy PHY_TYPE_USB3>;
+			phy-names = "usb2-phy", "usb3-phy";
+			phy_type = "utmi_wide";
+			snps,dis_enblslpm_quirk;
+			snps,dis_rxdet_inp3_quirk;
+			snps,dis-del-phy-power-chg-quirk;
+			snps,dis-tx-ipgap-linecheck-quirk;
+			snps,dis-u1-entry-quirk;
+			snps,dis-u2-entry-quirk;
+			snps,dis-u2-freeclk-exists-quirk;
+			snps,dis_u2_susphy_quirk;
+			snps,parkmode-disable-hs-quirk;
+			snps,parkmode-disable-ss-quirk;
+			status = "disabled";
+		};
+
 		gic: interrupt-controller@fed01000 {
 			compatible = "arm,gic-400";
 			reg = <0x0 0xfed01000 0 0x1000>,
@@ -349,6 +376,30 @@ gic: interrupt-controller@fed01000 {
 			#interrupt-cells = <3>;
 		};
 
+		usb_host0_ehci: usb@ff100000 {
+			compatible = "generic-ehci";
+			reg = <0x0 0xff100000 0x0 0x40000>;
+			clocks = <&cru HCLK_USBHOST>, <&cru HCLK_USBHOST_ARB>,
+				 <&usb2phy>;
+			interrupts = <GIC_SPI 143 IRQ_TYPE_LEVEL_HIGH>;
+			phys = <&usb2phy_host>;
+			phy-names = "usb";
+			power-domains = <&power RK3528_PD_VO>;
+			status = "disabled";
+		};
+
+		usb_host0_ohci: usb@ff140000 {
+			compatible = "generic-ohci";
+			reg = <0x0 0xff140000 0x0 0x40000>;
+			clocks = <&cru HCLK_USBHOST>, <&cru HCLK_USBHOST_ARB>,
+				 <&usb2phy>;
+			interrupts = <GIC_SPI 144 IRQ_TYPE_LEVEL_HIGH>;
+			phys = <&usb2phy_host>;
+			phy-names = "usb";
+			power-domains = <&power RK3528_PD_VO>;
+			status = "disabled";
+		};
+
 		qos_crypto_a: qos@ff200000 {
 			compatible = "rockchip,rk3528-qos", "syscon";
 			reg = <0x0 0xff200000 0x0 0x20>;
@@ -1281,6 +1332,35 @@ combphy: phy@ffdc0000 {
 			rockchip,pipe-phy-grf = <&pipe_phy_grf>;
 			status = "disabled";
 		};
+
+		usb2phy: usb2phy@ffdf0000 {
+			compatible = "rockchip,rk3528-usb2phy";
+			reg = <0x0 0xffdf0000 0x0 0x10000>;
+			clocks = <&cru CLK_REF_USBPHY>, <&cru PCLK_USBPHY>;
+			clock-names = "phyclk", "pclk";
+			#clock-cells = <0>;
+			clock-output-names = "clk_usbphy_480m";
+			power-domains = <&power RK3528_PD_VO>;
+			rockchip,usbgrf = <&vo_grf>;
+			status = "disabled";
+
+			usb2phy_otg: otg-port {
+				interrupts = <GIC_SPI 146 IRQ_TYPE_LEVEL_HIGH>,
+					     <GIC_SPI 147 IRQ_TYPE_LEVEL_HIGH>,
+					     <GIC_SPI 148 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-names = "otg-bvalid", "otg-id",
+						  "linestate";
+				#phy-cells = <0>;
+				status = "disabled";
+			};
+
+			usb2phy_host: host-port {
+				interrupts = <GIC_SPI 150 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-names = "linestate";
+				#phy-cells = <0>;
+				status = "disabled";
+			};
+		};
 	};
 };
 
-- 
2.47.3