[PATCH 1/3] arm64: dts: rockchip: Enable USB 2.0 host1 on Radxa ROCK 3B

Adam Wermuth adam at wermuth.pl
Thu Sep 24 00:14:43 PDT 2026


The USB 2.0 data lines of the M.2 B-key slot are routed to USB2_HOST3,
which is served by usb_host1_ehci/ohci through the host port of
usb2phy1. Enable the controllers and the PHY port so that modules in
the B-key slot, such as LTE modems, can enumerate.

Signed-off-by: Adam Wermuth <adam at wermuth.pl>
---
 arch/arm64/boot/dts/rockchip/rk3568-rock-3b.dts | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3568-rock-3b.dts b/arch/arm64/boot/dts/rockchip/rk3568-rock-3b.dts
index 149a5306bb03..ad9a91c0d0d0 100644
--- a/arch/arm64/boot/dts/rockchip/rk3568-rock-3b.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3568-rock-3b.dts
@@ -758,6 +758,14 @@ &usb_host0_xhci {
 	status = "okay";
 };
 
+&usb_host1_ehci {
+	status = "okay";
+};
+
+&usb_host1_ohci {
+	status = "okay";
+};
+
 &usb_host1_xhci {
 	status = "okay";
 };
@@ -780,6 +788,11 @@ &usb2phy1 {
 	status = "okay";
 };
 
+&usb2phy1_host {
+	phy-supply = <&vcc5v0_usb_host>;
+	status = "okay";
+};
+
 &usb2phy1_otg {
 	phy-supply = <&vcc5v0_usb_host>;
 	status = "okay";
-- 
2.43.0




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