From 46380e4b1534c1626cecd7f4d0abb5e0cce09af6 Mon Sep 17 00:00:00 2001
From: Inochi Amaoto <inochiama@gmail.com>
Date: Mon, 27 Jul 2026 17:47:23 +0800
Subject: [PATCH] riscv: dts: spacemit: k3: add USB controller and USB phy
 support

Add all USB device node to the Spacemit K3.

Signed-off-by: Inochi Amaoto <inochiama@gmail.com>
Reviewed-by: Yixun Lan <dlan@kernel.org>
Link: https://patch.msgid.link/20260727094726.890179-2-inochiama@gmail.com
Signed-off-by: Yixun Lan <dlan@kernel.org>
---
 arch/riscv/boot/dts/spacemit/k3-pico-itx.dts | 13 ++++++
 arch/riscv/boot/dts/spacemit/k3.dtsi         | 42 ++++++++++++++++++++
 2 files changed, 55 insertions(+)

diff --git a/arch/riscv/boot/dts/spacemit/k3-pico-itx.dts b/arch/riscv/boot/dts/spacemit/k3-pico-itx.dts
index 4460e225581c..c80ab41e9851 100644
--- a/arch/riscv/boot/dts/spacemit/k3-pico-itx.dts
+++ b/arch/riscv/boot/dts/spacemit/k3-pico-itx.dts
@@ -220,6 +220,11 @@ dldo7: dldo7 {
 	};
 };
 
+&combophy {
+	spacemit,apmu = <&syscon_apmu 0x11>;
+	status = "okay";
+};
+
 &eth0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&gmac0_rgmii_0_cfg>, <&gmac0_phy_0_cfg>;
@@ -317,3 +322,11 @@ hub@1 {
 &usb2_phy {
 	status = "okay";
 };
+
+&usb3d_u2phy {
+	status = "okay";
+};
+
+&usb3d {
+	status = "okay";
+};
diff --git a/arch/riscv/boot/dts/spacemit/k3.dtsi b/arch/riscv/boot/dts/spacemit/k3.dtsi
index 7583467793e1..c3f2dce0969c 100644
--- a/arch/riscv/boot/dts/spacemit/k3.dtsi
+++ b/arch/riscv/boot/dts/spacemit/k3.dtsi
@@ -7,6 +7,7 @@
 #include <dt-bindings/clock/spacemit,k3-clocks.h>
 #include <dt-bindings/interrupt-controller/irq.h>
 #include <dt-bindings/reset/spacemit,k3-resets.h>
+#include <dt-bindings/phy/phy.h>
 
 #include "k3-pdma.h"
 
@@ -440,6 +441,47 @@ soc: soc {
 		dma-noncoherent;
 		ranges;
 
+		usb3d: usb@81a00000 {
+			compatible = "spacemit,k3-dwc3";
+			reg = <0x0 0x81a00000 0x0 0x10000>;
+			interrupts = <149 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-parent = <&saplic>;
+			clocks = <&syscon_apmu CLK_APMU_USB3_PORTD_BUS>;
+			clock-names = "usbdrd30";
+			resets = <&syscon_apmu RESET_APMU_USB3_D_AHB>,
+				 <&syscon_apmu RESET_APMU_USB3_D_VCC>,
+				 <&syscon_apmu RESET_APMU_USB3_D_PHY>;
+			reset-names = "ahb", "vcc", "phy";
+			phys = <&usb3d_u2phy>,
+			       <&combophy 4 PHY_TYPE_USB3>;
+			phy-names = "usb2-phy", "usb3-phy";
+			phy_type = "utmi";
+			snps,dis_enblslpm_quirk;
+			snps,dis_u2_susphy_quirk;
+			snps,dis_u3_susphy_quirk;
+			snps,dis-del-phy-power-chg-quirk;
+			snps,dis-tx-ipgap-linecheck-quirk;
+			snps,parkmode-disable-ss-quirk;
+			dr_mode = "host";
+			status = "disabled";
+		};
+
+		usb3d_u2phy: phy@81b00000 {
+			compatible = "spacemit,k3-usb2-phy";
+			reg = <0x0 0x81b00000 0x0 0x200>;
+			clocks = <&syscon_apmu CLK_APMU_USB3_PORTD_BUS>;
+			#phy-cells = <0>;
+			status = "disabled";
+		};
+
+		combophy: phy@81d00000 {
+			compatible = "spacemit,k3-combo-phy";
+			reg = <0x0 0x81d00000 0x0 0x600000>;
+			#phy-cells = <2>;
+			spacemit,apb-spare = <&pll>;
+			status = "disabled";
+		};
+
 		usb2_host: usb@c0a00000 {
 			compatible = "spacemit,k3-dwc3";
 			reg = <0x0 0xc0a00000 0x0 0x10000>;