From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Enable the USB3.0 (CH0) host controllers on the RZ/V2N Evaluation Kit.
The CN4 connector on the EVK provides access to the USB3.0 channel.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
---
 .../boot/dts/renesas/r9a09g056n48-rzv2n-evk.dts   | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/r9a09g056n48-rzv2n-evk.dts b/arch/arm64/boot/dts/renesas/r9a09g056n48-rzv2n-evk.dts
index b77276489b30..9fd904787c30 100644
--- a/arch/arm64/boot/dts/renesas/r9a09g056n48-rzv2n-evk.dts
+++ b/arch/arm64/boot/dts/renesas/r9a09g056n48-rzv2n-evk.dts
@@ -460,6 +460,11 @@ vbus {
 		};
 	};
 
+	usb3_pins: usb3 {
+		pinmux = <RZV2N_PORT_PINMUX(B, 0, 14)>, /* USB30_VBUSEN */
+			 <RZV2N_PORT_PINMUX(B, 1, 14)>; /* USB30_OVRCURN */
+	};
+
 	xspi_pins: xspi0 {
 		ctrl {
 			pins = "XSPI0_RESET0N", "XSPI0_CS0N", "XSPI0_CKP";
@@ -510,10 +515,20 @@ &usb2_phy0 {
 	status = "okay";
 };
 
+&usb3_phy {
+	status = "okay";
+};
+
 &wdt1 {
 	status = "okay";
 };
 
+&xhci {
+	pinctrl-0 = <&usb3_pins>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
 &xspi {
 	pinctrl-0 = <&xspi_pins>;
 	pinctrl-names = "default";
-- 
2.51.2

On Wed, 19 Nov 2025 at 12:05, Prabhakar <prabhakar.csengg@gmail.com> wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
>
> Enable the USB3.0 (CH0) host controllers on the RZ/V2N Evaluation Kit.
> The CN4 connector on the EVK provides access to the USB3.0 channel.
>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
i.e. will queue in renesas-devel for v6.20.

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds