linux-kernel - [PATCH v1 3/3] riscv: dts: sophgo: Add USB support for cv18xx

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Message-ID: <20251012022555.6240-4-looong.bin@gmail.com>
Date: Sun, 12 Oct 2025 10:25:54 +0800
From: Longbin Li <looong.bin@...il.com>
To: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Chen Wang <unicorn_wang@...look.com>,
	Inochi Amaoto <inochiama@...il.com>,
	Paul Walmsley <pjw@...nel.org>,
	Palmer Dabbelt <palmer@...belt.com>,
	Albert Ou <aou@...s.berkeley.edu>,
	Alexandre Ghiti <alex@...ti.fr>,
	Longbin Li <looong.bin@...il.com>,
	Alexander Sverdlin <alexander.sverdlin@...il.com>,
	Yixun Lan <dlan@...too.org>,
	Thomas Bonnefille <thomas.bonnefille@...tlin.com>,
	Ze Huang <huangze@...t.edu.cn>
Cc: devicetree@...r.kernel.org,
	sophgo@...ts.linux.dev,
	linux-kernel@...r.kernel.org,
	linux-riscv@...ts.infradead.org
Subject: [PATCH v1 3/3] riscv: dts: sophgo: Add USB support for cv18xx

Add USB controller node for cv18xx and enable it for Huashan Pi, milkv-duo.

Signed-off-by: Inochi Amaoto <inochiama@...il.com>
Signed-off-by: Longbin Li <looong.bin@...il.com>
---
 arch/riscv/boot/dts/sophgo/cv1800b-milkv-duo.dts |  5 +++++
 arch/riscv/boot/dts/sophgo/cv180x.dtsi           | 16 ++++++++++++++++
 .../riscv/boot/dts/sophgo/cv1812h-huashan-pi.dts |  5 +++++
 .../boot/dts/sophgo/sg2002-licheerv-nano-b.dts   |  5 +++++
 4 files changed, 31 insertions(+)

diff --git a/arch/riscv/boot/dts/sophgo/cv1800b-milkv-duo.dts b/arch/riscv/boot/dts/sophgo/cv1800b-milkv-duo.dts
index 9feb520eaec4..0e6d79e6e3a4 100644
--- a/arch/riscv/boot/dts/sophgo/cv1800b-milkv-duo.dts
+++ b/arch/riscv/boot/dts/sophgo/cv1800b-milkv-duo.dts
@@ -100,3 +100,8 @@ &uart0 {
 	pinctrl-names = "default";
 	status = "okay";
 };
+
+&usb {
+	dr_mode = "host";
+	status = "okay";
+};
diff --git a/arch/riscv/boot/dts/sophgo/cv180x.dtsi b/arch/riscv/boot/dts/sophgo/cv180x.dtsi
index 42303acb2b39..1b2b1969a648 100644
--- a/arch/riscv/boot/dts/sophgo/cv180x.dtsi
+++ b/arch/riscv/boot/dts/sophgo/cv180x.dtsi
@@ -432,6 +432,22 @@ dmac: dma-controller@...0000 {
 			status = "disabled";
 		};

+		usb: usb@...0000 {
+			compatible = "sophgo,cv1800b-usb";
+			reg = <0x04340000 0x10000>;
+			clocks = <&clk CLK_AXI4_USB>, <&clk CLK_APB_USB>;
+			clock-names = "otg", "utmi";
+			g-np-tx-fifo-size = <32>;
+			g-rx-fifo-size = <536>;
+			g-tx-fifo-size = <768 512 512 384 128 128>;
+			interrupts = <SOC_PERIPHERAL_IRQ(14) IRQ_TYPE_LEVEL_HIGH>;
+			phys = <&usbphy>;
+			phy-names = "usb2-phy";
+			resets = <&rst RST_USB>;
+			reset-names = "dwc2";
+			status = "disabled";
+		};
+
 		rtc@...5000 {
 			compatible = "sophgo,cv1800b-rtc", "syscon";
 			reg = <0x5025000 0x2000>;
diff --git a/arch/riscv/boot/dts/sophgo/cv1812h-huashan-pi.dts b/arch/riscv/boot/dts/sophgo/cv1812h-huashan-pi.dts
index 4a5835fa9e96..aedf79f47407 100644
--- a/arch/riscv/boot/dts/sophgo/cv1812h-huashan-pi.dts
+++ b/arch/riscv/boot/dts/sophgo/cv1812h-huashan-pi.dts
@@ -86,3 +86,8 @@ &sdhci1 {
 &uart0 {
 	status = "okay";
 };
+
+&usb {
+	dr_mode = "host";
+	status = "okay";
+};
diff --git a/arch/riscv/boot/dts/sophgo/sg2002-licheerv-nano-b.dts b/arch/riscv/boot/dts/sophgo/sg2002-licheerv-nano-b.dts
index 86a712b953a5..b1853770d017 100644
--- a/arch/riscv/boot/dts/sophgo/sg2002-licheerv-nano-b.dts
+++ b/arch/riscv/boot/dts/sophgo/sg2002-licheerv-nano-b.dts
@@ -93,3 +93,8 @@ &uart0 {
 	pinctrl-names = "default";
 	status = "okay";
 };
+
+&usb {
+	dr_mode = "host";
+	status = "okay";
+};
--
2.51.0