[PATCH v4 3/3] riscv: dts: sophgo: Add USB support for cv18xx

Longbin Li
2025-10-24T03:06:22Z

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

Co-developed-by: Inochi Amaoto <inochiama@gmail.com>
Signed-off-by: Inochi Amaoto <inochiama@gmail.com>
Signed-off-by: Longbin Li <looong.bin@gmail.com>
Tested-by: Alexander Sverdlin <alexander.sverdlin@gmail.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@4330000 {
status = "disabled";
};

+ usb: usb@4340000 {
+ 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@5025000 {
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