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[4/5] arm64: dts: rockchip: disable unrouted USB controllers and PHY on RK3399 Puma

Message ID 20250326-onboard_usb_dev-v1-4-a4b0a5d1b32c@thaumatec.com (mailing list archive)
State New
Headers show
Series Fix onboard USB hub instability on RK3399 Puma SoM | expand

Commit Message

Lukasz Czechowski March 26, 2025, 4:22 p.m. UTC 
From: Quentin Schulz <quentin.schulz@cherry.de>

The u2phy1_host port is the part of the USB PHY1 (namely the
HOST1_DP/DM lanes) which routes directly to the USB2.0 HOST
controller[1]. The other lanes of the PHY are routed to the USB3.0 OTG
controller (dwc3), which we do use.

The HOST1_DP/DM lanes aren't routed on RK3399 Puma so let's simply
disable the USB2.0 controllers and associated part in USB2.0 PHY.

No intended functional change.

[1] https://rockchip.fr/Rockchip%20RK3399%20TRM%20V1.3%20Part2.pdf
    Chapter 2 USB2.0 PHY
Fixes: 2c66fc34e945 ("arm64: dts: rockchip: add RK3399-Q7 (Puma) SoM")
Signed-off-by: Quentin Schulz <quentin.schulz@cherry.de>
Signed-off-by: Lukasz Czechowski <lukasz.czechowski@thaumatec.com>
---
 arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi | 12 ------------
 1 file changed, 12 deletions(-)
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi
index 3a9049372e12..d0d867374b3f 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi
@@ -579,10 +579,6 @@  &u2phy1 {
 	u2phy1_otg: otg-port {
 		status = "okay";
 	};
-
-	u2phy1_host: host-port {
-		status = "okay";
-	};
 };
 
 &usbdrd3_1 {
@@ -611,11 +607,3 @@  hub_3_0: hub@2 {
 		reset-gpios = <&gpio4 RK_PA3 GPIO_ACTIVE_HIGH>;
 	};
 };
-
-&usb_host1_ehci {
-	status = "okay";
-};
-
-&usb_host1_ohci {
-	status = "okay";
-};